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This patch introduces a very limited functionality for atomic write support.
In order to support atomic write, this patch adds two ioctls:
o F2FS_IOC_START_ATOMIC_WRITE
o F2FS_IOC_COMMIT_ATOMIC_WRITE
The database engine should be aware of the following sequence.
1. open
-> ioctl(F2FS_IOC_START_ATOMIC_WRITE);
2. writes
: all the written data will be treated as atomic pages.
3. commit
-> ioctl(F2FS_IOC_COMMIT_ATOMIC_WRITE);
: this flushes all the data blocks to the disk, which will be shown all or
nothing by f2fs recovery procedure.
4. repeat to #2.
The IO pattens should be:
,- START_ATOMIC_WRITE ,- COMMIT_ATOMIC_WRITE
CP | D D D D D D | FSYNC | D D D D | FSYNC ...
`- COMMIT_ATOMIC_WRITE
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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'for-3.18/picolcd', 'for-3.18/rmi', 'for-3.18/sony', 'for-3.18/uhid', 'for-3.18/upstream' and 'for-3.18/wacom' into for-linus
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Don't return any value without any usage.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is a set of two small fixes, both to code which went in during
the merge window: cxgb4i has a scheduling in atomic bug in its new
ipv6 code and uas fails to work properly with the new scsi-mq code"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
[SCSI] uas: disable use of blk-mq I/O path
[SCSI] cxgb4i: avoid holding mutex in interrupt context
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The symbol is an orphan, get rid of it.
Signed-off-by: Richard Weinberger <richard@nod.at>
Acked-by: Lennox Wu <lennox.wu@gmail.com>
Cc: Paul Bolle <pebolle@tiscali.nl>
[Guenter Roeck: Merge with 3.17-rc3; update headline]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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The related error (with allmodconfig under score):
CC [M] drivers/staging/speakup/speakup_acntpc.o
In file included from drivers/staging/speakup/speakup_acntpc.c:33:0:
drivers/staging/speakup/serialio.h:7:24: fatal error: asm/serial.h: No such file or directory
#include <asm/serial.h>
^
compilation terminated.
make[3]: *** [drivers/staging/speakup/speakup_acntpc.o] Error 1
make[2]: *** [drivers/staging/speakup] Error 2
make[1]: *** [drivers/staging] Error 2
make: *** [drivers] Error 2
Acked-by: Lennox Wu <lennox.wu@gmail.com>
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
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This patch removes the use of the IRQF_DISABLED flag
from arch/score/kernel/time.c
It's a NOOP since 2.6.35 and it will be removed one day.
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Acked-by: Lennox Wu <lennox.wu@gmail.com>
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The related error (with allmodconfig under score):
MODPOST 1365 modules
ERROR: "flush_icache_range" [drivers/misc/lkdtm.ko] undefined!
Acked-by: Lennox Wu <lennox.wu@gmail.com>
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
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'csum_partial_copy_from_user' and 'flush_dcache_page' are also needed by
outside modules, so need export them in the related files.
The related error (with allmodconfig under score):
MODPOST 1365 modules
ERROR: "csum_partial_copy_from_user" [net/rxrpc/af-rxrpc.ko] undefined!
ERROR: "flush_dcache_page" [net/sunrpc/sunrpc.ko] undefined!
Acked-by: Lennox Wu <lennox.wu@gmail.com>
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
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https://git.kernel.org/pub/scm/linux/kernel/git/josh/linux
Pull kconfig fixes for tiny setups from Josh Triplett:
"Two Kconfig bugfixes for 3.17 related to tinification. These fixes
make the Kconfig "General Setup" menu much more usable"
* tag 'tiny/kconfig-for-3.17' of https://git.kernel.org/pub/scm/linux/kernel/git/josh/linux:
init/Kconfig: Fix HAVE_FUTEX_CMPXCHG to not break up the EXPERT menu
init/Kconfig: Hide printk log config if CONFIG_PRINTK=n
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commit 03b8c7b623c80af264c4c8d6111e5c6289933666 ("futex: Allow
architectures to skip futex_atomic_cmpxchg_inatomic() test") added the
HAVE_FUTEX_CMPXCHG symbol right below FUTEX. This placed it right in
the middle of the options for the EXPERT menu. However,
HAVE_FUTEX_CMPXCHG does not depend on EXPERT or FUTEX, so Kconfig stops
placing items in the EXPERT menu, and displays the remaining several
EXPERT items (starting with EPOLL) directly in the General Setup menu.
Since both users of HAVE_FUTEX_CMPXCHG only select it "if FUTEX", make
HAVE_FUTEX_CMPXCHG itself depend on FUTEX. With this change, the
subsequent items display as part of the EXPERT menu again; the EMBEDDED
menu now appears as the next top-level item in the General Setup menu,
which makes General Setup much shorter and more usable.
Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Cc: stable <stable@vger.kernel.org>
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The buffers sized by CONFIG_LOG_BUF_SHIFT and
CONFIG_LOG_CPU_MAX_BUF_SHIFT do not exist if CONFIG_PRINTK=n, so don't
ask about their size at all.
Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Cc: stable <stable@vger.kernel.org>
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The return value is not used by callers of these functions
so change the functions to return void.
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Jason Baron <jbaron@akamai.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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unregister_one_node
Commit 92d585ef067d ("numa: fix NULL pointer access and memory
leak in unregister_one_node()") added kfree() of node struct in
unregister_one_node(). But node struct is freed by node_device_release()
which is called in unregister_node(). So by adding the kfree(),
node struct is freed two times.
While hot removing memory, the commit leads the following BUG_ON():
kernel BUG at mm/slub.c:3346!
invalid opcode: 0000 [#1] SMP
[...]
Call Trace:
[...] unregister_one_node
[...] try_offline_node
[...] remove_memory
[...] acpi_memory_device_remove
[...] acpi_bus_trim
[...] acpi_bus_trim
[...] acpi_device_hotplug
[...] acpi_hotplug_work_fn
[...] process_one_work
[...] worker_thread
[...] ? rescuer_thread
[...] kthread
[...] ? kthread_create_on_node
[...] ret_from_fork
[...] ? kthread_create_on_node
This patch removes unnecessary kfree() from unregister_one_node().
Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: Xishi Qiu <qiuxishi@huawei.com>
Cc: stable@vger.kernel.org # v3.16+
Fixes: 92d585ef067d "numa: fix NULL pointer access and memory leak in unregister_one_node()"
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Fixes: 905e300e1043 ("USB: host: st: fix ehci/ohci driver selection")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The stream_id and pipe are already present in uas_cmd_info resp uas_dev_info,
so there is no need to pass a copy along.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Instead of building all of the xHCI code into a single module, separate
it out into the core (xhci-hcd), PCI (xhci-pci, now selected by the new
config option CONFIG_USB_XHCI_PCI), and platform (xhci-plat) drivers.
Also update the PCI/platform drivers with module descriptions/licenses
and have them register their respective drivers in their initcalls.
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In preparation for allowing the xHCI host controller drivers to be built
as separate modules, export symbols from the xHCI core that may be used
by the host controller drivers.
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Instead of calling xhci_compliance_mode_recovery_timer_quirk_check() again
in the PCI suspend path, just check for XHCI_COMP_MODE_QUIRK which will
have been set based on xhci_compliance_mode_recovery_timer_quirk_check()
in xhci_init().
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Since the struct hc_driver is mostly the same across the xhci-pci,
xhci-plat, and the upcoming xhci-tegra driver, introduce the function
xhci_init_driver() which will populate the hc_driver with the default
xHCI operations. The caller must supply a setup function which will
be used as the hc_driver's reset callback.
Note that xhci-plat also overrides the default ->start() callback so
that it can do rcar-specific initialization.
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"Two i2c driver bugfixes"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: qup: Fix order of runtime pm initialization
i2c: rk3x: fix 0 length write transfers
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The current version of the et131x driver has been accepted into the
main tree at /drivers/net/ethernet, so it can now be removed from
staging.
The MAINTAINERS entry has not been touched here, as the patch to
add the driver to drivers/net modifies it correctly.
Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull trace ring buffer iterator fix from Steven Rostedt:
"While testing some new changes for 3.18, I kept hitting a bug every so
often in the ring buffer. At first I thought it had to do with some
of the changes I was working on, but then testing something else I
realized that the bug was in 3.17 itself. I ran several bisects as
the bug was not very reproducible, and finally came up with the commit
that I could reproduce easily within a few minutes, and without the
change I could run the tests over an hour without issue. The change
fit the bug and I figured out a fix. That bad commit was:
Commit 651e22f2701b "ring-buffer: Always reset iterator to reader page"
This commit fixed a bug, but in the process created another one. It
used the wrong value as the cached value that is used to see if things
changed while an iterator was in use. This made it look like a change
always happened, and could cause the iterator to go into an infinite
loop"
* tag 'trace-fixes-v3.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
ring-buffer: Fix infinite spin in reading buffer
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Pull cifs/smb3 fixes from Steve French:
"Fix for CIFS/SMB3 oops on reconnect during readpages (3.17 regression)
and for incorrectly closing file handle in symlink error cases"
* 'for-linus' of git://git.samba.org/sfrench/cifs-2.6:
CIFS: Fix readpages retrying on reconnects
Fix problem recognizing symlinks
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Prepare first round of input updates for 3.18.
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Pull raid5 discard fix from Neil Brown:
"One fix for raid5 discard issue"
* tag 'md/3.17-final-fix' of git://neil.brown.name/md:
md/raid5: disable 'DISCARD' by default due to safety concerns.
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'spi/topic/rspi', 'spi/topic/sh-msiof' and 'spi/topic/sirf' into spi-next
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'spi/topic/mxs', 'spi/topic/omap-100k' and 'spi/topic/orion' into spi-next
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'spi/topic/dw' and 'spi/topic/fsl' into spi-next
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'spi/topic/checkpatch' and 'spi/topic/clps711x' into spi-next
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Pull drm fixes from Dave Airlie:
"Nothing too major or scary.
One i915 regression fix, nouveau has a tmds regression fix, along with
a regression fix for the runtime pm code for optimus laptops not
restoring the display hw correctly"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/nouveau: make sure display hardware is reinitialised on runtime resume
drm/nouveau: punt fbcon resume out to a workqueue
drm/nouveau: fix regression on original nv50 board
drm/nv50/disp: fix dpms regression on certain boards
drm/i915: Flush the PTEs after updating them before suspend
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Function prototypes are never definitions, so remove any 'extern' keyword
from the funcion prototypes in cpu_ops.h. Fixes warnings emited by
checkpatch.
Signed-off-by: Geoff Levand <geoff@infradead.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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This replaces http://git.linuxtv.org/v4l-utils/ (broken link)
by http://git.linuxtv.org/cgit.cgi/v4l-utils.git/
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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of_device_ids (i.e. compatible strings and the respective data) are not
supposed to change at runtime. All functions working with of_device_ids
provided by <linux/of.h> work with const of_device_ids. So mark the
only non-const struct in arch/arm64 as const, too.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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sysfs.c includes mpssd.h which includes virtio_ids.h.
sysfs.c doesn't have the proper include flags set to use the latest
headers, so this causes a build error if the system headers are too old.
Signed-off-by: Peter Foley <pefoley2@pefoley.com>
Cc: rdunlap@infradead.org
Cc: linux-doc@vger.kernel.org
Cc: sudeep.dutt@intel.com
Cc: nikhil.rao@intel.com
Cc: ashutosh.dixit@intel.com
Cc: akpm@linux-foundation.org
Cc: gregkh@linuxfoundation.org
Cc: harshavardhan.r.kharche@intel.com
Cc: caz.yokoyama@intel.com
Cc: dasaratharaman.chandramouli@intel.com
Cc: jkosina@suse.cz
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Signed-off-by: Michael Heimpold <mhei@heimpold.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
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The uas driver uses the block layer tag for USB3 stream IDs. With
blk-mq we can get larger tag numbers that the queue depth, which breaks
this assumption. A fix is under way for 3.18, but sits on top of
large changes so can't easily be backported. Set the disable_blk_mq
path so that a uas device can't easily crash the system when using
blk-mq for SCSI.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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No functional changes
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
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hwreg_present() and hwreg_write() temporarily change the VBR register to
another vector table. This table contains a valid bus error handler
only, all other entries point to arbitrary addresses.
If an interrupt comes in while the temporary table is active, the
processor will start executing at such an arbitrary address, and the
kernel will crash.
While most callers run early, before interrupts are enabled, or
explicitly disable interrupts, Finn Thain pointed out that macsonic has
one callsite that doesn't, causing intermittent boot crashes.
There's another unsafe callsite in hilkbd.
Fix this for good by disabling and restoring interrupts inside
hwreg_present() and hwreg_write().
Explicitly disabling interrupts can be removed from the callsites later.
Reported-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: stable@vger.kernel.org
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This reverts commit a86713b1536c818972675e6dd8c6e738f0379f1d.
Kevin Hilman writes:
Multiple boot failures on ARM[1] were bisected down to this
patch.
How was this patch tested, and on which platforms?
Also, the changelog states that this should be done only for
UART_CAP_SLEEP, but the patch does it for every UART.
Greg, I suggest this patch be dropped from tty-next until it has
been better described and tested.
[1] http://lists.linaro.org/pipermail/kernel-build-reports/2014-October/005550.html
Reported-by: Kevin Hilman <khilman@kernel.org>
Cc: Sudhir Sreedharan <ssreedharan@mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management fixes from Rafael Wysocki:
"These are three regression fixes (cpufreq core, pcc-cpufreq, i915 /
ACPI) and one trivial fix for a callback return value mismatch in the
cpufreq integrator driver.
Specifics:
- A recent cpufreq core fix went too far and introduced a regression
in the system suspend code path. Fix from Viresh Kumar.
- An ACPI-related commit in the i915 driver that fixed backlight
problems for some Thinkpads inadvertently broke a Dell machine (in
3.16). Fix from Aaron Lu.
- The pcc-cpufreq driver was broken during the 3.15 cycle by a commit
that put wait_event() under a spinlock by mistake. Fix that
(Rafael J Wysocki).
- The return value type of integrator_cpufreq_remove() is void, but
should be int. Fix from Arnd Bergmann"
* tag 'pm+acpi-3.17-final' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: update 'cpufreq_suspended' after stopping governors
ACPI / i915: Update the condition to ignore firmware backlight change request
cpufreq: integrator: fix integrator_cpufreq_remove return type
cpufreq: pcc-cpufreq: Fix wait_event() under spinlock
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git://anongit.freedesktop.org/drm-intel into drm-fixes
final regression fix for 3.17.
* tag 'drm-intel-fixes-2014-10-02' of git://anongit.freedesktop.org/drm-intel:
drm/i915: Flush the PTEs after updating them before suspend
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The runtime pm calls need to be done before populating the children via the
i2c_add_adapter call. If this is not done, a child can run into issues trying
to do i2c read/writes due to the pm_runtime_sync failing.
Signed-off-by: Andy Gross <agross@codeaurora.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org
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i2cdetect -q was broken (everything was a false positive, and no transfers were
actually being sent over i2c). The way it works is by sending a 0 length write
request and checking for NACK. This patch fixes the 0 length writes and actually
sends them.
Reported-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Alexandru M Stan <amstan@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
Tested-by: Max Schwarz <max.schwarz@online.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org
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* pm-cpufreq:
cpufreq: update 'cpufreq_suspended' after stopping governors
cpufreq: integrator: fix integrator_cpufreq_remove return type
cpufreq: pcc-cpufreq: Fix wait_event() under spinlock
* acpi-video:
ACPI / i915: Update the condition to ignore firmware backlight change request
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