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Conflicts:
drivers/hid/usbhid/hid-quirks.c
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'for-4.3/lenovo', 'for-4.3/logitech', 'for-4.3/multitouch', 'for-4.3/picolcd', 'for-4.3/rmi', 'for-4.3/sensor-hub', 'for-4.3/sony' and 'for-4.3/wacom' into for-linus
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into for-linus
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wacom_setup_numbered_buttons() is not used outside of wacom_wac.c,
make it static.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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This device is pad (buttons) only, there is no stylus or touch. Up to
five remotes can pair with the device's associated USB dongle.
Signed-off-by: Aaron Skomra <aaron.skomra@wacom.com>
Reviewed-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Prior to this commit, numbered button bit setting was done separately
for each device type in wacom_setup_pad_capabilities(). Here we add a
numbered_buttons property to the wacom_features struct and extract the
repeated bit setting code to a new function:
wacom_settup_numbered_buttons().
Signed-off-by: Aaron Skomra <aaron.skomra@wacom.com>
Reviewed-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Looks like 0x8882 needs the same quirk than 0x8883.
Given that both devices claim they are "TPV OpticalTouchScreen" rename
the 0x8883 to add its PID in the #define.
Reported-by: Blaine Lee <blaine.j.lee@medtronic.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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It was reported that after 10-20 reboots, a usb keyboard plugged
into a docking station would not work unless it was replugged in.
Using usbmon, it turns out the interrupt URBs were streaming with
callback errors of -71 for some reason. The hid-core.c::hid_io_error was
supposed to retry and then reset, but the reset wasn't really happening.
The check for HID_NO_BANDWIDTH was inverted. Fix was simple.
Tested by reporter and locally by me by unplugging a keyboard halfway until I
could recreate a stream of errors but no disconnect.
Signed-off-by: Don Zickus <dzickus@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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suspend
Enabling irq wake could potentially fail and calling disable_irq_wake
after a failed call to enable_irq_wake could result in an unbalanced irq
warning. This patch warns if enable_irq_wake fails and avoids other
potential issues caused by calling disable_irq_wake on resume after
enable_irq_wake failed during suspend.
Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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The current generation of "Intuos" tablets (i.e. INTUOSHT) report touch
width and height data just like the "Intuos Pro" do. This commit changes
the code to allow these tablets to use the appropriate codepath instead
of the one intended for Intuos5/Bamboo.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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This gamepad advertise 5 absolute axis while 4 are actually used.
The second Z axis shows some garbage, so it has to be ignored by HID.
The first Z axis and the Rz one are actually Rx and Ry. Remap them.
We could also just remap and ignore the axis in .input_mapping(). I
went ahead with .report_fixup() first, so here it is.
Reported-by: Orivej Desh <orivej@gmx.fr>
Tested-by: Orivej Desh <orivej@gmx.fr>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Don't relay a middle button press to userspace until release, and then
only if there was no scroll events inbetween. This is closer to what
Xorg's wheel emulation does, and avoids spurious middle-click pastes.
Signed-off-by: Jamie Lentin <jm@lentin.co.uk>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Signed-off-by: Jamie Lentin <jm@lentin.co.uk>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Signed-off-by: Jamie Lentin <jm@lentin.co.uk>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Unlike other IRQ functions, 'wacom_pl_irq' uses the second element of
the 'tool' array to store information about its single pen. This makes
the function more difficult to understand (since it doesn't follow the
general pattern of other IRQ functions) and prevents the possibility of
refactoring how pen state is stored.
This patch rewrites 'wacom_pl_irq' to follow the usual IRQ conventions,
including storing tool type in 'tool[0]' and implicitly tracking prox
with the 'id[0]' variable.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Pull HID fixes from Jiri Kosina:
- fix for bounds limit calculation in uclogic driver, by Dan Carpenter
- fix for use-after-free during device removal, by Krzysztof Kozlowski
- fix for userspace regression (that became apparent only with shiny
new libinput, so it's not that bad, but I still consider it 4.2
material), in wacom driver, by Jason Gerecke
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: wacom: Report correct device resolution when using the wireless adapater
HID: hid-input: Fix accessing freed memory during device disconnect
HID: uclogic: fix limit in uclogic_tablet_enable()
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The 'wacom_wireless_work' function does not recalculate the tablet's
resolution, causing the value contained in the 'features' struct to
always be reported to userspace. This value is valid only for the pen
interface, meaning that the value will be incorrect for the touchpad (if
present). This in particular causes problems for libinput which relies
on the reported resolution being correct.
This patch adds the necessary calls to recalculate the resolution for
each interface. This requires a little bit of code shuffling since both
the 'wacom_set_default_phy' and 'wacom_calculate_res' are declared below
their new first point of use in 'wacom_wireless_work'.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD fixes from Lee Jones:
- fix dependency issues on ChromeOS platforms
- fix runtime PM issues on Arizona
- fix IRQ/suspend race on Arizona
* tag 'mfd-fixes-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd:
mfd: Remove MFD_CROS_EC_SPI depends on OF
platform/chrome: Don't make CHROME_PLATFORMS depends on X86 || ARM
mfd: arizona: Fix initialisation of the PM runtime
mfd: arizona: Fix race between runtime suspend and IRQs
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Pull NTB bugfixes from Jon Mason:
"NTB bug fixes to address transport receive issues, stats, link
negotiation issues, and string formatting"
* tag 'ntb-4.2-rc7' of git://github.com/jonmason/ntb:
ntb: avoid format string in dev_set_name
NTB: Fix dereference before check
NTB: Fix zero size or integer overflow in ntb_set_mw
NTB: Schedule to receive on QP link up
NTB: Fix oops in debugfs when transport is half-up
NTB: ntb_netdev not covering all receive errors
NTB: Fix transport stats for multiple devices
NTB: Fix ntb_transport out-of-order RX update
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull RCU pathwalk fix from Al Viro:
"Another racy use of nd->path.dentry in RCU mode"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
may_follow_link() should use nd->inode
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As an extension of aef3156d7, there is no sense in repeatedly calling the
'wacom_set_report' and 'wacom_get_report' functions if they return an
error. Getting an error from them implies that the device is out to lunch:
either a hard error code was returned or repeated attempts at recovering
from a "soft" error all failed. In either case, doing even more retries is
not likely to resolve whatever is wrong.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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As an extension of aef3156d7, there is no sense in repeatedly calling the
'wacom_set_report' and 'wacom_get_report' functions if they return an
error. Getting an error from them implies that the device is out to lunch:
either a hard error code was returned or repeated attempts at recovering
from a "soft" error all failed. In either case, doing even more retries is
not likely to resolve whatever is wrong.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Avoid any chance of format string expansion when calling dev_set_name.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
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Remove early dereference of a pointer that is checked later in the code.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
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A plain 32 bit integer will overflow for values over 4GiB.
Change the plain integer size to the appropriate size type in
ntb_set_mw. Change the type of the size parameter and two local
variables used for size.
Even if there is no overflow, a size of zero is invalid here.
Reported-by: Juyoung Jung <jjung@micron.com>
Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
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Schedule to receive on QP link up, to make sure that the doorbell is
properly cleared for interrupts.
Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
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When the remote side is not up, we do not have all the context for the
transport, and that causes NULL ptr access. Have the debugfs reads check
to see if transport is up before we make access.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
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ntb_netdev is allowing the link to come up even when -ENOMEM is returned
from ntb_transport_rx_enqueue. Fix to cover all possible errors.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
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Currently the debugfs does not have files for all NTB transport queue
pairs. When there are multiple NTBs present in a system, the QP names
of the last transport clobber the names of previously added transport
QPs. Only the last added QPs can be observed via debugfs.
Create a directory per NTB transport to associate the QPs with that
transport. Name the directory the same as the PCI device.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
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It was possible for a synchronous update of the RX index in the error
case to get ahead of the asynchronous RX index update in the normal
case. Change the RX processing to preserve an RX completion order.
There were two error cases. First, if a buffer is not present to
receive data, there would be no queue entry to preserve the RX
completion order. Instead of dropping the RX frame, leave the RX frame
in the ring. Schedule RX processing when RX entries are enqueued, in
case there are RX frames waiting in the ring to be received.
Second, if a buffer is too small to receive data, drop the frame in the
ring, mark the RX entry as done, and indicate the error in the RX entry
length. Check for a negative length in the receive callback in
ntb_netdev, and count occurrences as rx_length_errors.
Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input subsystem fixes from Dmitry Torokhov:
"Just small ALPS and Elan touchpads, and other driver fixups"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: elantech - add special check for fw_version 0x470f01 touchpad
Input: twl4030-vibra - fix ERROR: Bad of_node_put() warning
Input: alps - only Dell laptops have separate button bits for v2 dualpoint sticks
Input: axp20x-pek - add module alias
Input: turbografx - fix potential out of bound access
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Pull MIPS fixes from Ralf Baechle:
"Another round of MIPS fixes for 4.2. No area does particularly stand
out but we have a two unpleasant ones:
- Kernel ptes are marked with a global bit which allows the kernel to
share kernel TLB entries between all processes. For this to work
both entries of an adjacent even/odd pte pair need to have the
global bit set. There has been a subtle race in setting the other
entry's global bit since ~ 2000 but it take particularly
pathological workloads that essentially do mostly vmalloc/vfree to
trigger this.
This pull request fixes the 64-bit case but leaves the case of 32
bit CPUs with 64 bit ptes unsolved for now. The unfixed cases
affect hardware that is not available in the field yet.
- Instruction emulation requires loading instructions from user space
but the current fast but simplistic approach will fail on pages
that are PROT_EXEC but !PROT_READ. For this reason we temporarily
do not permit this permission and will map pages with PROT_EXEC |
PROT_READ.
The remainder of this pull request is more or less across the field
and the short log explains them well"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: Make set_pte() SMP safe.
MIPS: Replace add and sub instructions in relocate_kernel.S with addiu
MIPS: Flush RPS on kernel entry with EVA
Revert "MIPS: BCM63xx: Provide a plat_post_dma_flush hook"
MIPS: BMIPS: Delete unused Kconfig symbol
MIPS: Export get_c0_perfcount_int()
MIPS: show_stack: Fix stack trace with EVA
MIPS: do_mcheck: Fix kernel code dump with EVA
MIPS: SMP: Don't increment irq_count multiple times for call function IPIs
MIPS: Partially disable RIXI support.
MIPS: Handle page faults of executable but unreadable pages correctly.
MIPS: Malta: Don't reinitialise RTC
MIPS: unaligned: Fix build error on big endian R6 kernels
MIPS: Fix sched_getaffinity with MT FPAFF enabled
MIPS: Fix build with CONFIG_OF=y for non OF-enabled targets
CPUFREQ: Loongson2: Fix broken build due to incorrect include.
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs fix from Chris Mason:
"We have a btrfs quota regression fix.
I merged this one on Thursday and have run it through tests against
current master.
Normally I wouldn't have sent this while you were finalizing rc6, but
I'm feeding mosquitoes in the adirondacks next week, so I wanted to
get this one out before leaving. I'll leave longer tests running and
check on things during the week, but I don't expect any problems"
* 'for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
btrfs: qgroup: Fix a regression in qgroup reserved space.
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git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Pull thermal management fixes from Zhang Rui:
"Specifics:
- fix an error that "weight_attr" sysfs attribute is not removed
while unbinding. From: Viresh Kumar.
- fix power allocator governor tracing to return the real request.
From Javi Merino.
- remove redundant owner assignment of hisi platform thermal driver.
From Krzysztof Kozlowski.
- a couple of small fixes of Exynos thermal driver. From Krzysztof
Kozlowski and Chanwoo Choi"
* 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
thermal: Drop owner assignment from platform_driver
thermal: exynos: Remove unused code related to platform_data on probe()
thermal: exynos: Add the dependency of CONFIG_THERMAL_OF instead of CONFIG_OF
thermal: exynos: Disable the regulator on probe failure
thermal: power_allocator: trace the real requested power
thermal: remove dangling 'weight_attr' device file
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git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull ARC fixes from Vineet Gupta:
"Here's a late pull request for accumulated ARC fixes which came out of
extended testing of the new ARCv2 port with LTP etc. llock/scond
livelock workaround has been reviewed by PeterZ. The changes look a
lot but I've crafted them into finer grained patches for better
tracking later.
I have some more fixes (ARC Futex backend) ready to go but those will
have to wait for tglx to return from vacation.
Summary:
- Enable a reduced config of HS38 (w/o div-rem, ll64...)
- Add software workaround for LLOCK/SCOND livelock
- Fallout of a recent pt_regs update"
* tag 'arc-v4.2-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARCv2: spinlock/rwlock/atomics: reduce 1 instruction in exponential backoff
ARC: Make pt_regs regs unsigned
ARCv2: spinlock/rwlock: Reset retry delay when starting a new spin-wait cycle
ARCv2: spinlock/rwlock/atomics: Delayed retry of failed SCOND with exponential backoff
ARC: LLOCK/SCOND based rwlock
ARC: LLOCK/SCOND based spin_lock
ARC: refactor atomic inline asm operands with symbolic names
Revert "ARCv2: STAR 9000837815 workaround hardware exclusive transactions livelock"
ARCv2: [axs103_smp] Reduce clk for Quad FPGA configs
ARCv2: Fix the peripheral address space detection
ARCv2: allow selection of page size for MMUv4
ARCv2: lib: memset: Don't assume 64-bit load/stores
ARCv2: lib: memcpy: Missing PREFETCHW
ARCv2: add knob for DIV_REV in Kconfig
ARC/time: Migrate to new 'set-state' interface
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Pull virtio fix from Michael Tsirkin:
"A last minute fix for the new virtio input driver. It seems pretty
obvious, and the problem it's fixing would be quite hard to debug"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
virtio-input: reset device and detach unused during remove
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- stable fix for a dm_merge_bvec() regression on 32 bit Fedora systems.
- fix for a 4.2 DM thinp discard regression due to inability to
properly delete a range of blocks in a data mapping btree.
* tag 'dm-4.2-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm btree remove: fix bug in remove_one()
dm: fix dm_merge_bvec regression on 32 bit systems
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"The only bulk changes in this request is ABI updates for ASoC topology
API. It's a new API that was introduced in 4.2, and we'd like to
avoid ABI change after the release, so it's taken now. As there is no
real in-tree user for this API, it should be fairly safe.
Other than that, the usual small fixes are found in various drivers:
ASoC cs4265, rt5645, intel-sst, firewire, oxygen and HD-audio"
* tag 'sound-4.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ASoC: topology: Add private data type and bump ABI version to 3
ASoC: topology: Add ops support to byte controls UAPI
ASoC: topology: Update TLV support so we can support more TLV types
ASoC: topology: add private data to manifest
ASoC: topology: Add subsequence in topology
ALSA: hda - one Dell machine needs the headphone white noise fixup
ALSA: fireworks/firewire-lib: add support for recent firmware quirk
Revert "ALSA: fireworks: add support for AudioFire2 quirk"
ASoC: topology: fix typo in soc_tplg_kcontrol_bind_io()
ALSA: HDA: Dont check return for snd_hdac_chip_readl
ALSA: HDA: Fix stream assignment for host in decoupled mode
ASoC: rt5645: Fix lost pin setting for DMIC1
ALSA: oxygen: Fix logical-not-parentheses warning
ASoC: Intel: sst_byt: fix initialize 'NULL device *' issue
ASoC: Intel: haswell: fix initialize 'NULL device *' issue
ASoC: cs4265: Fix setting dai format for Left/Right Justified
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
- Export module alias information in g762 and nct7904 to support
auto-loading.
- Blacklist Dell Studio XPS 8100 in dell-smm to fix fan control
problems.
* tag 'hwmon-for-linus-v4.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (g762) Export OF module alias information
hwmon: (nct7904) Export I2C module alias information
hwmon: (dell-smm) Blacklist Dell Studio XPS 8100
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some USB and PHY fixes for 4.2-rc6 that resolve some reported
issues.
All of these have been in the linux-next tree for a while, full
details on the patches are in the shortlog below"
* tag 'usb-4.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
ARM: dts: dra7: Add syscon-pllreset syscon to SATA PHY
drivers/usb: Delete XHCI command timer if necessary
xhci: fix off by one error in TRB DMA address boundary check
usb: udc: core: add device_del() call to error pathway
phy: ti-pipe3: i783 workaround for SATA lockup after dpll unlock/relock
phy-sun4i-usb: Add missing EXPORT_SYMBOL_GPL for sun4i_usb_phy_set_squelch_detect
USB: sierra: add 1199:68AB device ID
usb: gadget: f_printer: actually limit the number of instances
usb: gadget: f_hid: actually limit the number of instances
usb: gadget: f_uac2: fix calculation of uac2->p_interval
usb: gadget: bdc: fix a driver crash on disconnect
usb: chipidea: ehci_init_driver is intended to call one time
USB: qcserial: Add support for Dell Wireless 5809e 4G Modem
USB: qcserial/option: make AT URCs work for Sierra Wireless MC7305/MC7355
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg KH:
"Here are three bugfixes for some staging driver issues that have been
reported. All have been in the linux-next tree for a while"
* tag 'staging-4.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: lustre: Include unaligned.h instead of access_ok.h
staging: vt6655: vnt_bss_info_changed check conf->beacon_rate is not NULL
staging: comedi: das1800: add missing break in switch
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc fixes from Greg KH:
"Here are some extcon fixes for 4.2-rc6 that resolve some reported
problems.
All have been in linux-next for a while"
* tag 'char-misc-4.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
extcon: Fix extcon_cable_get_state() from getting old state after notification
extcon: Fix hang and extcon_get/set_cable_state().
extcon: palmas: Fix NULL pointer error
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git://anongit.freedesktop.org/drm-intel
Pull drm fixes from Daniel Vetter:
"One i915 regression fix and a drm core one since Dave's not around,
both introduced in 4.2 so not cc: stable.
The fix for the warning Ted reported isn't in here yet since he didn't
yet supply a tested-by and I can't repro this one myself (it's in
fixup code that needs firmware doing something i915 wouldn't do)"
* tag 'drm-intel-fixes-2015-08-07' of git://anongit.freedesktop.org/drm-intel:
drm/vblank: Use u32 consistently for vblank counters
drm/i915: Allow parsing of variable size child device entries from VBT
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It is no need to check the packet[0] for sanity check when doing
elantech_packet_check_v4() function for fw_version = 0x470f01 touchpad.
Signed-off by: Duson Lin <dusonlin@emc.com.tw>
Reviewed-by: Ulrik De Bie <ulrik.debie-os@e2big.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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remove_one() was not incrementing the key for the beginning of the
range, so not all entries were being removed. This resulted in
discards that were not unmapping all blocks.
Fixes: 4ec331c3ea ("dm btree: add dm_btree_remove_leaves()")
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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In
commit 99264a61dfcda41d86d0960cf2d4c0fc2758a773
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed Apr 15 19:34:43 2015 +0200
drm/vblank: Fixup and document timestamp update/read barriers
I've switched vblank->count from atomic_t to unsigned long and
accidentally created an integer comparison bug in
drm_vblank_count_and_time since vblanke->count might overflow the u32
local copy and hence the retry loop never succeed.
Fix this by consistently using u32.
Cc: Michel Dänzer <michel@daenzer.net>
Reported-by: Michel Dänzer <michel@daenzer.net>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v4.2
There are a couple of small driver specific fixes here but the
overwhelming bulk of these changes are fixes to the topology ABI that
has been newly introduced in v4.2. Once this makes it into a release we
will have to firm this up but for now getting enhancements in before
they've made it into a release is the most expedient thing.
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The increment of delay counter was 2 instructions:
Arithmatic Shfit Left (ASL) + set to 1 on overflow
This can be done in 1 using ROtate Left (ROL)
Suggested-by: Nigel Topham <ntopham@synopsys.com>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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