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.. and also use it in lookup_one_len() rather than open-coding it.
There aren't any performance-critical users, so inlining it is silly.
But it wouldn't matter if it wasn't for the fact that the word-at-a-time
dentry name patches want to conditionally replace the function, and
uninlining it sets the stage for that.
So again, this is a preparatory patch that doesn't change any semantics,
and only prepares for a much cleaner and testable word-at-a-time dentry
name accessor patch.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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These don't change any semantics, but they clean up the code a bit and
mark some arguments appropriately 'const'.
They came up as I was doing the word-at-a-time dcache name accessor
code, and cleaning this up now allows me to send out a smaller relevant
interesting patch for the experimental stuff.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pulling latest branches from Ingo:
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
memblock: Fix size aligning of memblock_alloc_base_nid()
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf probe: Ensure offset provided is not greater than function length without DWARF info too
perf tools: Ensure comm string is properly terminated
perf probe: Ensure offset provided is not greater than function length
perf evlist: Return first evsel for non-sample event on old kernel
perf/hwbp: Fix a possible memory leak
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
CPU hotplug, cpusets, suspend: Don't touch cpusets during suspend/resume
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There is only one error code to return for a bad user-space buffer
pointer passed to a system call in the same address space as the
system call is executed, and that is EFAULT. Furthermore, the
low-level access routines, which catch most of the faults, return
EFAULT already.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Roland McGrath <roland@hack.frob.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The regset common infrastructure assumed that regsets would always
have .get and .set methods, but not necessarily .active methods.
Unfortunately people have since written regsets without .set methods.
Rather than putting in stub functions everywhere, handle regsets with
null .get or .set methods explicitly.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Roland McGrath <roland@hack.frob.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Various smaller perf/urgent fixes.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Watchdog updates from Wim Van Sebroeck:
* git://www.linux-watchdog.org/linux-watchdog:
watchdog: fix GETTIMEOUT ioctl in booke_wdt
watchdog: update maintainers git entry
watchdog: Fix typo in pnx4008_wdt.c
watchdog: Fix typo in Kconfig
watchdog: fix error in probe() of s3c2410_wdt (reset at booting)
watchdog: hpwdt: clean up set_memory_x call for 32 bit
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull from Mark Brown:
"A simple, driver specific fix. This device isn't widely used outside
of Marvell reference boards most of which are probably used with their
BSPs rather than with mainline so low risk."
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: fix the ldo configure according to 88pm860x spec
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git://git.pengutronix.de/git/wsa/linux-2.6
i2c bugfix from Wolfram Sang:
"This patch fixes a wrong assumption in the mxs-i2c-driver about a
command queue being done. Without it, we have seen races when the
bus was under load."
* 'i2c-embedded/for-3.3' of git://git.pengutronix.de/git/wsa/linux-2.6:
i2c: mxs: only flag completion when queue is completely done
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DRM fixes from Dave Airlie:
intel: fixes for output regression on 965GM, an oops and a machine
hang
radeon: uninitialised var (that gcc didn't warn about for some reason)
+ a couple of correctness fixes.
exynos: fixes for various things, drop some chunks of unused code.
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/radeon/kms/vm: fix possible bug in radeon_vm_bo_rmv()
drm/radeon: fix uninitialized variable
drm/radeon/kms: fix radeon_dp_get_modes for LVDS bridges (v2)
drm/i915: Remove use of the autoreported ringbuffer HEAD position
drm/i915: Prevent a machine hang by checking crtc->active before loading lut
drm/i915: fix operator precedence when enabling RC6p
drm/i915: fix a sprite watermark computation to avoid divide by zero if xpos<0
drm/i915: fix mode set on load pipe. (v2)
drm/exynos: exynos_drm.h header file fixes
drm/exynos: added panel physical size.
drm/exynos: added postclose to release resource.
drm/exynos: removed exynos_drm_fbdev_recreate function.
drm/exynos: fixed page flip issue.
drm/exynos: added possible_clones setup function.
drm/exynos: removed pageflip_event_list init code when closed.
drm/exynos: changed priority of mixer layers.
drm/exynos: Fix typo in exynos_mixer.c
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
[S390] memory hotplug: prevent memory zone interleave
[S390] crash_dump: remove duplicate include
[S390] KEYS: Enable the compat keyctl wrapper on s390x
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memblock allocator aligns @size to @align to reduce the amount
of fragmentation. Commit:
7bd0b0f0da ("memblock: Reimplement memblock allocation using reverse free area iterator")
Broke it by incorrectly relocating @size aligning to
memblock_find_in_range_node(). As the aligned size is not
propagated back to memblock_alloc_base_nid(), the actually
reserved size isn't aligned.
While this increases memory use for memblock reserved array,
this shouldn't cause any critical failure; however, it seems
that the size aligning was hiding a use-beyond-allocation bug in
sparc64 and losing the aligning causes boot failure.
The underlying problem is currently being debugged but this is a
proper fix in itself, it's already pretty late in -rc cycle for
boot failures and reverting the change for debugging isn't
difficult. Restore the size aligning moving it to
memblock_alloc_base_nid().
Reported-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/20120228205621.GC3252@dhcp-172-17-108-109.mtv.corp.google.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
LKML-Reference: <alpine.SOC.1.00.1202130942030.1488@math.ut.ee>
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Merge virtio pull request from Rusty Russell.
* tag 'for-linus' of git://github.com/rustyrussell/linux:
virtio: balloon: leak / fill balloon across S4
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commit e562966dbaf49e7804097cd991e5d3a8934fc148 added support for S4 to
the balloon driver. The freeze function did nothing to free the pages,
since reclaiming the pages from the host to immediately give them back
(if S4 was successful) seemed wasteful. Also, if S4 wasn't successful,
the guest would have to re-fill the balloon. On restore, the pages were
supposed to be marked freed and the free page counters were incremented
to reflect the balloon was totally deflated.
However, this wasn't done right. The pages that were earlier taken away
from the guest during a balloon inflation operation were just shown as
used pages after a successful restore from S4. Just a fancy way of
leaking lots of memory.
Instead of trying that, just leak the balloon on freeze and fill it on
restore/thaw paths. This works properly now. The optimisation to not
leak can be added later on after a bit of refactoring of the code.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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without DWARF info too
The 'perf probe' command allows kprobe to be inserted at any offset from
a function start, which results in adding kprobes to unintended
location. (example: perf probe do_fork+10000 is allowed even though
size of do_fork is ~904).
My previous patch https://lkml.org/lkml/2012/2/24/42 addressed the case
where DWARF info was available for the kernel. This patch fixes the
case where perf probe is used on a kernel without debuginfo available.
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/4F4C544D.1010909@linux.vnet.ibm.com
Signed-off-by: Prashanth Nageshappa <prashanth@linux.vnet.ibm.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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If threads in a multi-threaded process have names shorter than the main
thread the comm for the named threads is not properly terminated.
E.g., for the process 'namedthreads' where each thread is named noploop%d
where %d is the thread number:
Before:
perf script -f comm,tid,ip,sym,dso
noploop:4ads 21616 400a49 noploop (/tmp/namedthreads)
The 'ads' in the thread comm bleeds over from the process name.
After:
perf script -f comm,tid,ip,sym,dso
noploop:4 21616 400a49 noploop (/tmp/namedthreads)
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1330111898-68071-1-git-send-email-dsahern@gmail.com
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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The perf probe command allows kprobe to be inserted at any offset from a
function start, which results in adding kprobes to unintended location.
Example: perf probe do_fork+10000 is allowed even though size of do_fork
is ~904.
This patch will ensure probe addition fails when the offset specified is
greater than size of the function.
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Link: http://lkml.kernel.org/r/4F473F33.4060409@linux.vnet.ibm.com
Signed-off-by: Prashanth Nageshappa <prashanth@linux.vnet.ibm.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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On old kernels that don't support sample_id_all feature,
perf_evlist__id2evsel() returns NULL for non-sampling events.
This breaks perf top when multiple events are given on command line. Fix
it by using first evsel in the evlist. This will also prevent getting
the same (potential) problem in such new tool/ old kernel combo.
Suggested-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1329702447-25045-1-git-send-email-namhyung.kim@lge.com
Signed-off-by: Namhyung Kim <namhyung.kim@lge.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Arnd Bergmann says:
"Another set of arm-soc bug fixes on top of v3.3-rc5. The few larger
bits are all for devices that still need to get set up in board code.
Only three platforms are in this set of fixes: omap2+, pxa and lpc32xx."
* tag 'fixes-3.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (22 commits)
ARM: LPC32xx: serial.c: Fixed loop limit
ARM: LPC32xx: serial.c: HW bug workaround
ARM: LPC32xx: irq.c: Clear latched event
ARM: LPC32xx: Fix interrupt controller init
ARM: LPC32xx: Fix irq on GPI_28
ARM: OMAP2: fix mailbox init code
ARM: OMAP2+: gpmc-smsc911x: add required smsc911x regulators
ARM: OMAP1: Fix out-of-bounds array access for Innovator
OMAP3 EVM: remove out-of-bounds array access of gpio_leds
ARM: OMAP: Fix build error when mmc_omap is built as module
ARM: OMAP: Fix kernel panic with HSMMC when twl4030_gpio is a module
pxa/hx4700: add platform device and I2C info for AK4641 codec
arch/arm/mach-pxa/: included linux/gpio.h twice
arch/arm/mach-mmp/: some files include some headers twice
ARM: pxa: fix error handling in pxa2xx_drv_pcmcia_probe
ARM: pxa: fix including linux/gpio.h twice
ARM: pxa: fix mixed declarations and code in sharpsl_pm
ARM: pxa: fix wrong parsing gpio event on spitz
ARM: OMAP2+: usb-host: fix compile warning
ARM: OMAP4: Move the barrier memboclk_steal() as part of reserve callback
...
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Build fixes for 3.3 from Jonas Bonn
* tag 'for-3.3' of git://openrisc.net/jonas/linux:
openrisc: Fix up audit_syscall_[entry|exit]() usage
openrisc: include export.h for EXPORT_SYMBOL
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The bo is removed from the list at the top of
radeon_vm_bo_rmv(), but then the list is used
in radeon_vm_bo_update_pte() to look up the vm.
remove the bo_list entry at the end of the
function instead.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jerome Glisse <j.glisse@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Without this fix the driver randomly treats
textures as arrays and I'm really wondering
why gcc isn't complaining about it.
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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git://git.infradead.org/users/kmpark/linux-2.6-samsung into HEAD
* 'exynos-drm-fixes' of git://git.infradead.org/users/kmpark/linux-2.6-samsung:
drm/exynos: exynos_drm.h header file fixes
drm/exynos: added panel physical size.
drm/exynos: added postclose to release resource.
drm/exynos: removed exynos_drm_fbdev_recreate function.
drm/exynos: fixed page flip issue.
drm/exynos: added possible_clones setup function.
drm/exynos: removed pageflip_event_list init code when closed.
drm/exynos: changed priority of mixer layers.
drm/exynos: Fix typo in exynos_mixer.c
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Need to call ExternalEncoderControl to set up DDC before
trying to get an EDID for all DP bridge chips (including
DP to LVDS).
Also remove redundant encoder assignment.
V2: fix typo in commit message.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Commit dcfb748422 ([WATCHDOG] fix book E watchdog to take
WDIOC_SETTIMEOUT arg in seconds) fixed SETTIMEOUT ioctl
to use seconds as a parameter instead of some hardware-specific
"period", but missed to apply similar changes to GETTIMEOUT,
so it still returns "period" value. Let's fix it!
Also, while at it, make SETTIMEOUT ioctl return real timeout
value as it should do according to the documentation.
Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Fix printk format warning (from Linus's suggestion):
on i386:
fs/ecryptfs/miscdev.c:433:38: warning: format '%lu' expects type 'long unsigned int', but argument 4 has type 'unsigned int'
and on x86_64:
fs/ecryptfs/miscdev.c:433:38: warning: format '%u' expects type 'unsigned int', but argument 4 has type 'long unsigned int'
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Tyler Hicks <tyhicks@canonical.com>
Cc: Dustin Kirkland <dustin.kirkland@gazzang.com>
Cc: ecryptfs@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-fixes:
GFS2: Read resource groups on mount
GFS2: Ensure rindex is uptodate for fallocate
GFS2: Read in rindex if necessary during unlink
GFS2: Fix race between lru_list and glock ref count
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git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
IOMMU fixes for Linux 3.3-rc5
All the fixes are for the OMAP IOMMU driver. The first patch is the
biggest one. It fixes the calls of the function omap_find_iovm_area() in
the omap-iommu-debug module which expects a 'struct device' parameter
since commit fabdbca instead of an omap_iommu handle. The
omap-iommu-debug code still passed the handle to the function which
caused a crash.
The second patch fixes a NULL pointer dereference in the OMAP code and
the third patch makes sure that the omap-iommu is initialized before the
omap-isp driver, which relies on the iommu. The last patch is only a
workaround until defered probing is implemented.
* tag 'iommu-fixes-v3.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
ARM: OMAP: make iommu subsys_initcall to fix builtin omap3isp
iommu/omap: fix NULL pointer dereference
iommu/omap: fix erroneous omap-iommu-debug API calls
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The git repository for watchdog device drivers moved.
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Correct spelling "resouce" to "resource" in
drivers/watchdog/pnx4008_wdt.c
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Correct spelling "overidden" to "overridden" in
drivers/watchdog/Kconfig
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Probe function of s3c2410 watchdog calls request_irq before initializing
required value (wdt_count). This incurs resetting watchdog counter value
and watchdog-reboot during booting up.
This patch addresses such an issue by calling request_irq later.
Error handling in probe function and calling oder in remove function are
also revised accordingly.
Reported-by: Chanwoo Park <cw00.choi@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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1. address has to be page aligned.
2. set_memory_x uses page size argument, not size.
Bug causes with following commit:
commit da28179b4e90dda56912ee825c7eaa62fc103797
Author: Mingarelli, Thomas <Thomas.Mingarelli@hp.com>
Date: Mon Nov 7 10:59:00 2011 +0100
watchdog: hpwdt: Changes to handle NX secure bit in 32bit path
commit e67d668e147c3b4fec638c9e0ace04319f5ceccd upstream.
This patch makes use of the set_memory_x() kernel API in order
to make necessary BIOS calls to source NMIs.
Signed-off-by: Maxim Uvarov <maxim.uvarov@oracle.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: stable <stable@vger.kernel.org>
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This makes mount take slightly longer, but at the same time, the first
write to the filesystem will be faster too. It also means that if there
is a problem in the resource index, then we can refuse to mount rather
than having to try and report that when the first write occurs.
In addition, to avoid recursive locking, we hvae to take account of
instances when the rindex glock may already be held when we are
trying to update the rbtree of resource groups.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
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This patch fixes a problem whereby gfs2_grow was failing and causing GFS2
to assert. The problem was that when GFS2's fallocate operation tried to
acquire an "allocation" it made sure the rindex was up to date, and if not,
it called gfs2_rindex_update. However, if the file being fallocated was
the rindex itself, it was already locked at that point. By calling
gfs2_rindex_update at an earlier point in time, we bring rindex up to date
and thereby avoid trying to lock it when the "allocation" is acquired.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
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This patch fixes a problem whereby you were unable to delete
files until other file system operations were done (such as
statfs, touch, writes, etc.) that caused the rindex to be
read in.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
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This patch fixes a narrow race window between the glock ref count
hitting zero and glocks being removed from the lru_list.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
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If kzalloc() for TYPE_DATA failed on a given cpu, previous chunk
of TYPE_INST will be leaked. Fix it.
Thanks to Peter Zijlstra for suggesting this better solution. It
should work as long as the initial value of the region is all
0's and that's the case of static (per-cpu) memory allocation.
Signed-off-by: Namhyung Kim <namhyung.kim@lge.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Link: http://lkml.kernel.org/r/1330391978-28070-1-git-send-email-namhyung.kim@lge.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/drm-intel into HEAD
* 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/drm-intel:
drm/i915: Remove use of the autoreported ringbuffer HEAD position
drm/i915: Prevent a machine hang by checking crtc->active before loading lut
drm/i915: fix operator precedence when enabling RC6p
drm/i915: fix a sprite watermark computation to avoid divide by zero if xpos<0
drm/i915: fix mode set on load pipe. (v2)
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest
While demoing ktest at ELC in 2012, it was embarrassing that the
make_min_config test failed to work because the snowball board I was
testing it against had a config that would not build. But the
make_min_config only tested the testing part and ignored build failures.
The end result was a config file that would not boot.
This time, for real.
* tag 'ktest-fix-make-min-failed-build-for-real' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
ktest: Fix make_min_config test when build fails
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The make_min_config does not take into account when the build fails,
resulting in a invalid MIN_CONFIG .config file. When the build fails,
it is ignored and the boot test is executed, using the previous built
kernel. The configs that should be tested are not tested and they may
be added or removed depending on the result of the last kernel that
succeeded to be built.
If the build fails, mark the current config as a failure and the
configs that were disabled may still be needed.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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* 'lpc32xx/fixes' of git://git.antcom.de/linux-2.6: (5 commits)
ARM: LPC32xx: serial.c: Fixed loop limit
ARM: LPC32xx: serial.c: HW bug workaround
ARM: LPC32xx: irq.c: Clear latched event
ARM: LPC32xx: Fix interrupt controller init
ARM: LPC32xx: Fix irq on GPI_28
Update to Linux 3.3-rc5
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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This is a revert of 6aa56062eaba67adfb247cded244fd877329588d.
This was originally introduced to workaround reads of the ringbuffer
registers returning 0 on SandyBridge causing hangs due to ringbuffer
overflow. The root cause here was reads through the GT powerwell require
the forcewake dance, something we only learnt of later. Now it appears
that reading the reported head position from the HWS is returning
garbage, leading once again to hangs.
For example, on q35 the autoreported head reports:
[ 217.975608] head now 00010000, actual 00010000
[ 436.725613] head now 00200000, actual 00200000
[ 462.956033] head now 00210000, actual 00210010
[ 485.501409] head now 00400000, actual 00400020
[ 508.064280] head now 00410000, actual 00410000
[ 530.576078] head now 00600000, actual 00600020
[ 553.273489] head now 00610000, actual 00610018
which appears reasonably sane. In contrast, if we look at snb:
[ 141.970680] head now 00e10000, actual 00008238
[ 141.974062] head now 02734000, actual 000083c8
[ 141.974425] head now 00e10000, actual 00008488
[ 141.980374] head now 032b5000, actual 000088b8
[ 141.980885] head now 03271000, actual 00008950
[ 142.040628] head now 02101000, actual 00008b40
[ 142.180173] head now 02734000, actual 00009050
[ 142.181090] head now 00000000, actual 00000ae0
[ 142.183737] head now 02734000, actual 00009050
In addition, the automatic reporting of the head position is scheduled
to be defeatured in the future. It has no more utility, remove it.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=45492
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Tested-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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This patch fixes a wrong loop limit on UART init.
Signed-off-by: Roland Stigge <stigge@antcom.de>
Cc: stable@vger.kernel.org
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This patch fixes a HW bug by flushing RX FIFOs of the UARTs on init. It was
ported from NXP's git.lpclinux.com tree.
Signed-off-by: Roland Stigge <stigge@antcom.de>
Cc: stable@vger.kernel.org
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This patch fixes the wakeup disable function by clearing latched events.
Signed-off-by: Roland Stigge <stigge@antcom.de>
Cc: stable@vger.kernel.org
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This patch fixes the initialization of the interrupt controller of the LPC32xx
by correctly setting up SIC1 and SIC2 instead of (wrongly) using the same value
as for the Main Interrupt Controller (MIC).
Signed-off-by: Roland Stigge <stigge@antcom.de>
Cc: stable@vger.kernel.org
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The GPI_28 IRQ was not registered properly. The registration of
IRQ_LPC32XX_GPI_28 was added and the (wrong) IRQ_LPC32XX_GPI_11 at
LPC32XX_SIC1_IRQ(4) was replaced by IRQ_LPC32XX_GPI_28 (see manual of
LPC32xx / interrupt controller).
Signed-off-by: Roland Stigge <stigge@antcom.de>
Cc: stable@vger.kernel.org
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Here are some trivial NTFS changes (a spelling fix and two use before
NULL check cases found by Coverity as well as an update in MAINTAINERS
for the path to the ntfs git repo) together with a simple LDM fix for
parsing fragmented VBLKs.
* git://git.kernel.org/pub/scm/linux/kernel/git/aia21/ntfs:
NTFS: Update git repo path in MAINTAINERS file.
LDM: Fix reassembly of extended VBLKs.
NTFS: Correct two spelling errors "dealocate" to "deallocate" in mft.c.
NTFS: Do not dereference pointer before checking for NULL.
NTFS: Remove unused variable.
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mce/AMD: Fix UP build error
x86: Specify a size for the cmp in the NMI handler
x86/nmi: Test saved %cs in NMI to determine nested NMI case
x86/amd: Fix L1i and L2 cache sharing information for AMD family 15h processors
x86/microcode: Remove noisy AMD microcode warning
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