get_wchan() is lockless. Task may wakeup at any time and change its own stack,
thus each next stack frame may be overwritten and filled with random stuff.
/proc/$pid/stack interface had been disabled for non-current tasks, see [1]
But 'wchan' still allows to trigger stack frame unwinding on volatile stack.
This patch fixes oops in unwind_frame() by adding stack pointer validation on
each step (as x86 code do), unwind_frame() already checks frame pointer.
Also I've found another report of this oops on stackoverflow (irony).
Link: http://www.spinics.net/lists/arm-kernel/msg110589.html [1]
Link: http://stackoverflow.com/questions/18479894/unwind-frame-cause-a-kernel-paging-error
Cc: <stable@vger.kernel.org>
Signed-off-by: Konstantin Khlebnikov <k.khlebnikov@samsung.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
To get updated __pv_phys_offset, setup_dma_zone() needs to be
called after early_paging_init().
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Current code is using PHYS_OFFSET to calculate the arm_dma_limit which
will lead to wrong calculations in cases where PHYS_OFFSET is updated
runtime.
So fix the code by using __pv_phys_offset instead of PHYS_OFFSET.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Peter reports that OMAP audio broke with the recent fix for these
checks, caused by OMAP audio using a 64-bit DMA mask. We should
allow 64-bit DMA masks even with 32-bit dma_addr_t if we can be sure
the amount of RAM we have won't allow the 32-bit dma_addr_t to
overflow. Unfortunately, the checks to detect overflow were not
correct.
Tested-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
When not aggregating packets, fi->framelen should be passed in as length
to calculate the duration. Before the tx path rework, ath_tx_fill_desc
was called for either one aggregate, or one single frame, with the
length of the packet or the aggregate as a parameter.
After the rework, ath_tx_sched_aggr can pass a burst of single frames to
ath_tx_fill_desc and sets len=0.
Fix broken duration calculation by overriding the length in ath_tx_fill_desc
before passing it to ath_buf_set_rate.
Cc: stable@vger.kernel.org
Reported-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
commit dc75925d(OMAP: hwmod: Fix the missing braces) introduced
missing braces, however, we just set return result if clk_get fail
and we populate the error pointer in clk pointer and pass it along to
clk_prepare. This is wrong. The intent seems to be retry remaining
clocks if they are available and warn the ones we cant find clks for.
With the current logic, we see the following crash:
omap_hwmod: l3_main: cannot clk_get interface_clk emac_ick
Unable to handle kernel NULL pointer dereference at virtual address 00000032
pgd = c0004000
[00000032] *pgd=00000000
Internal error: Oops: 5 [#1] SMP ARM
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.13.0-rc1-00044-gcc9fd5a-dirty #19
task: ce0c3440 ti: ce0c4000 task.ti: ce0c4000
PC is at __clk_prepare+0x10/0x74
LR is at clk_prepare+0x14/0x24
<snip>
[<c044d59c>] (__clk_prepare+0x10/0x74) from [<c044d9b0>] (clk_prepare+0x14/0x24)
[<c044d9b0>] (clk_prepare+0x14/0x24) from [<c077d8c4>] (_init+0x24c/0x3bc)
[<c077d8c4>] (_init+0x24c/0x3bc) from [<c0027328>] (omap_hwmod_for_each+0x34/0x5c)
[<c0027328>] (omap_hwmod_for_each+0x34/0x5c) from [<c077dfa0>] (__omap_hwmod_setup_all+0x24/0x40)
[<c077dfa0>] (__omap_hwmod_setup_all+0x24/0x40) from [<c0008928>] (do_one_initcall+0x38/0x168)
[<c0008928>] (do_one_initcall+0x38/0x168) from [<c0771be8>] (kernel_init_freeable+0xfc/0x1cc)
[<c0771be8>] (kernel_init_freeable+0xfc/0x1cc) from [<c0521064>] (kernel_init+0x8/0x110)
[<c0521064>] (kernel_init+0x8/0x110) from [<c000e568>] (ret_from_fork+0x14/0x2c)
Code: e92d4038 e2504000 01a05004 0a000005 (e5943034)
So, just warn and continue instead of proceeding and crashing, with
missing clock nodes/bad data, we will eventually fail, however we
should now have enough information to identify the culprit.
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Unlike what the comment states, errata i660 does not state that we
can't RESET the USB host module. Instead it states that RESET is the
only way to recover from a deadlock situation.
RESET ensures that the module is in a known good state irrespective
of what bootloader does with the module, so it must be done at boot.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Tested-by: Tomi Valkeinen <tomi.valkeinen@ti.com> # Panda, BeagleXM
Fixes: de231388cb ("ARM: OMAP: USB: EHCI and OHCI hwmod structures for OMAP3")
Signed-off-by: Paul Walmsley <paul@pwsan.com>
In _ocp_softreset(), after _set_softreset() + write_sysconfig(),
the hwmod's sysc_cache will always contain SOFTRESET bit set
so all further writes to sysconfig using this cache will initiate
a repeated SOFTRESET e.g. enable_sysc(). This is true for OMAP3 like
platforms that have RESET_DONE status in the SYSSTATUS register and
so the the SOFTRESET bit in SYSCONFIG is not automatically cleared.
It is not a problem for OMAP4 like platforms that indicate RESET
completion by clearing the SOFTRESET bit in the SYSCONFIG register.
This repeated SOFTRESET is undesired and was the root cause of
USB host issues on OMAP3 platforms when hwmod was allowed to do the
SOFTRESET for the USB Host module.
To fix this we clear the SOFTRESET bit and update the sysconfig
register + sysc_cache using write_sysconfig().
Signed-off-by: Roger Quadros <rogerq@ti.com>
Tested-by: Tomi Valkeinen <tomi.valkeinen@ti.com> # Panda, BeagleXM
[paul@pwsan.com: renamed _clr_softreset() to _clear_softreset()]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Change the function signature to return error code and not call die()
anymore.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1386567251-22751-13-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Make it return error value since its only caller find_event() now can
handle allocation error properly.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1386567251-22751-8-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
It returns NULL when allocation fails so the users should check the
return value from now on.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1386567251-22751-4-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
In manpage of perf-kvm, --guestmount is supported by diff command, but
it does not work well.
This patch change the extend the checking in buildid-diff from
guestkallsyms or guestmodules to perf_guest. Then this checking can
cover the all cases perf kvm is used for.
Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Link: http://lkml.kernel.org/r/72857ed89642e0633f5e88f7e7abbc9645359e8e.1386368672.git.yangds.fnst@cn.fujitsu.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The code in builtin-kvm.c to generate filename for perf-kvm is useful to
other command such as builtin-diff.
This patch move the related code form builtin-kvm.c to util/util.c and
wrap them in a function named get_filename_for_perf_kvm.
Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Link: http://lkml.kernel.org/r/5e09a5c47e8a495e888cbdc65a6fafb2c950f529.1386368672.git.yangds.fnst@cn.fujitsu.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
When we use perf kvm record-report, there is a bug in report subcommand.
Example:
# perf kvm stat record -a sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.678 MB perf.data.guest (~29641 samples) ]
# perf kvm stat report
failed to open perf.data: No such file or directory (try 'perf record' first)
Initializing perf session failed
This bug was introduced by f5fc14124.
+ struct perf_data_file file = {
+ .path = input_name,
+ .mode = PERF_DATA_MODE_READ,
+ };
kvm->tool = eops;
- kvm->session = perf_session__new(kvm->file_name, O_RDONLY, 0, false,
- &kvm->tool);
+ kvm->session = perf_session__new(&file, false, &kvm->tool);
It changed the path from kvm->file_name to input_name, this patch change the path back to
'kvm->file_name', then it works well.
Verification:
# perf kvm stat record -a sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.807 MB perf.data.guest (~35264 samples) ]
# perf kvm stat report
Analyze events for all VCPUs:
VM-EXIT Samples Samples% Time% Min Time Max Time Avg time
EPT_VIOLATION 200 32.79% 1.25% 0us 12064us 62.35us ( +- 96.74% )
EPT_MISCONFIG 134 21.97% 0.21% 0us 35us 15.25us ( +- 4.14% )
EXCEPTION_NMI 96 15.74% 0.02% 0us 11us 1.95us ( +- 9.81% )
APIC_ACCESS 79 12.95% 0.02% 0us 13us 2.94us ( +- 11.20% )
HLT 65 10.66% 98.47% 0us 16706us 15084.86us ( +- 1.89% )
IO_INSTRUCTION 27 4.43% 0.02% 0us 29us 6.42us ( +- 15.53% )
EXTERNAL_INTERRUPT 5 0.82% 0.01% 0us 77us 23.65us ( +- 57.90% )
TPR_BELOW_THRESHOLD 4 0.66% 0.00% 0us 1us 1.22us ( +- 4.36% )
Total Samples:610, Total events handled time:995745.54us.
Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Link: http://lkml.kernel.org/r/1386632823-17539-1-git-send-email-yangds.fnst@cn.fujitsu.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
As there is no -v option for perf kvm, the all debug message for perf
kvm will nerver be printed out to user.
Example:
# perf kvm --guestmount /tmp/guestmount/ record -a
Not enough memory for reading perf file header
It is confusing message for newbies such as me. With this patch applied,
we can use -v option to get the detail.
Example:
# perf kvm --guestmount /tmp/guestmount/ record -a -v
Can't access file /tmp/guestmount//15069/proc/kallsyms
Not enough memory for reading perf file header
Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Cc: David Ahern <dsahern@gmail.com>
Link: http://lkml.kernel.org/r/1386609311-23889-1-git-send-email-yangds.fnst@cn.fujitsu.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
'next_pow2()' only works for 'unsigned int' but the argument is
'unsigned long'. Checking for values less than (1 << 31) ensures that
'next_pow2()' is not passed a value out of range but lets anything else
go through unvalidated.
As a result mmap_pages of zero is used e.g.
perf record -v -m2147483649 uname
mmap size 0B
failed to mmap with 22 (Invalid argument)
Fixed:
perf record -m2147483649 uname
rounding mmap pages size to 17592186044416 bytes (4294967296 pages)
Invalid argument for --mmap_pages/-m
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1386595120-22978-4-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
'SIZE_MAX / page_size' is an upper limit for the maximum number of mmap
pages, not a lower limit. Change the condition accordingly.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1386595120-22978-3-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
'mmap_pages' is 'unsigned int' not 'int' e.g.
perf record -m2147483648 uname
Permission error mapping pages.
Consider increasing /proc/sys/kernel/perf_event_mlock_kb,
or try again with a smaller value of -m/--mmap_pages.
(current value: -2147483648)
Fixed:
perf record -m2147483648 uname
Permission error mapping pages.
Consider increasing /proc/sys/kernel/perf_event_mlock_kb,
or try again with a smaller value of -m/--mmap_pages.
(current value: 2147483648)
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1386595120-22978-5-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Add field 'srcline' that displays the source file name and line number
associated with the sample ip. The information displayed is the same as
from addr2line.
$ perf script -f comm,tid,pid,time,ip,sym,dso,symoff,srcline
grep 10701/10701 2497321.421013: ffffffff81043ffa native_write_msr_safe+0xa ([kernel.kallsyms])
/usr/src/debug/kernel-3.9.fc17/linux-3.9.10-100.fc17.x86_64/arch/x86/include/asm/msr.h:95
grep 10701/10701 2497321.421984: ffffffff8165b6b3 _raw_spin_lock+0x13 ([kernel.kallsyms])
/usr/src/debug/kernel-3.9.fc17/linux-3.9.10-100.fc17.x86_64/arch/x86/include/asm/spinlock.h:54
grep 10701/10701 2497321.421990: ffffffff810b64b3 tick_sched_timer+0x53 ([kernel.kallsyms])
/usr/src/debug/kernel-3.9.fc17/linux-3.9.10-100.fc17.x86_64/kernel/time/tick-sched.c:840
grep 10701/10701 2497321.421992: ffffffff8106f63f run_timer_softirq+0x2f ([kernel.kallsyms])
/usr/src/debug/kernel-3.9.fc17/linux-3.9.10-100.fc17.x86_64/kernel/timer.c:1372
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1386315778-11633-3-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Pull drm fixes from Dave Airlie:
"This is probably a bit big, but just because I fell behind last week
and didn't get to doing any pulls, so stuff backed up behind me, I
actually should have sent this for -rc3 but failed to even manage
that.
So this has radeon, intel, nouveau, vmware, exynos and tegra fixes in
it, and the line count isn't all the bad in the end"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (50 commits)
drm: fix the addition of the side-by-side (half) flag for extra 3D modes
drm/edid: fix length check when adding extra 3D modes
drm/radeon/atom: fix bus probes when hw_i2c is set (v2)
drm/radeon: fix null pointer dereference in dce6+ audio code
drm/radeon: fixup bad vram size on SI
udl: fix issue with imported prime buffers
drm/vmwgfx: Add our connectors to sysfs
drm/vmwgfx: Fix dma buffer memory size accounting
drm/vmwgfx: Fix up and comment the dumb buffer implementation
drm/vmwgfx: Correctly set the enabled state on crtcs
drm/nv50/disp: min/max are reversed in nv50_crtc_gamma_set()
drm/nouveau/sw: fix oops if gpu has its display block disabled
drm/nouveau: unreference fence after syncing
drm/nouveau/kms: send timestamp data for correct head in flip completion events
drm/nouveau/clk: Add support for NVAA/NVAC
drm/nouveau/fifo: Hook up pause and resume for NV50 and NV84+
drm/nv10/plane: some chipsets don't support NV12
drm/nv10/plane: add downscaling restrictions
drm/nv10/plane: fix format computation
drm/nv04-nv30/clk: provide an empty domain list
...
- A ti-ssp build failure fix.
- An as3722 build failure fix.
- An lpc_ich copy paste error fix.
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Merge tag 'mfd-fixes-3.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-fixes
Pull mfd fixes from Samuel Ortiz:
"This is the first 3.13 pull request for MFD fixes. We have:
- A ti-ssp build failure fix
- An as3722 build failure fix
- An lpc_ich copy paste error fix"
* tag 'mfd-fixes-3.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-fixes:
mfd: lpc_ich: Fix Wildcat Point info name field
mfd: ti-ssp: Fix build
mfd: Make MFD_AS3722 depend on I2C=y
This reverts two cpufreq commits that fixed issues for some people,
but broke things for others, so revert them and we'll need to fix the
original problems differently.
/
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Merge tag 'pm-3.13-rc3-fixup' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixup from Rafael Wysocki:
"This reverts two cpufreq commits that fixed issues for some people,
but broke things for others, so revert them and we'll need to fix the
original problems differently"
* tag 'pm-3.13-rc3-fixup' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
Revert "cpufreq: fix garbage kobjects on errors during suspend/resume"
Revert "cpufreq: suspend governors on system suspend/hibernate"
Pull input updates from Dmitry Torokhov:
"An update to ALPS to support devices on Dell XT2 (hopefully working
better this time around and although it is largish it should not
affect any other ALPS devices) and a tiny update to Elantech driver to
support newer devices as well.
Also a coupe of new input event codes have been defined"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: ALPS - add support for DualPoint device on Dell XT2 model
Input: elantech - add support for newer (August 2013) devices
Input: add SW_MUTE_DEVICE switch definition
Input: usbtouchscreen - separate report and transmit buffer size handling
Input: sur40 - suppress false uninitialized variable warning
Input: add key code for ambient light sensor button
Input: keyboard - "keycode & KEY_MAX" changes some keycode values
Pull crypto fix from Herbert Xu:
"Unfortunately the last push that fixed a crash in the crypto
scatterwalk code introduced a new crash when SG debugging is enabled.
This fixes that"
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: scatterwalk - Use sg_chain_ptr on chain entries
prior to week 08 of 2013 Freescale misprogrammed between 1 and 3% of
PFUZE1000 parts with a ID=0x8 instead of the expected ID=0x0
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org
According to the datasheet, the address of FABID is 0x4. Fix it.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Robin Gong <b38343@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org
'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid build breakage in the future.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch uses devm to release the clks instead of releasing
manually.
And it adds enable/disable mipi_clk when getting its rate.
Signed-off-by: Libin Yang <lbyang@marvell.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
git grep shows that the function is only called from ths7303.c
Fix this build warning:
CC drivers/media/i2c/ths7303.o
drivers/media/i2c/ths7303.c:86:5: warning: no previous prototype for ‘ths7303_setval’ [-Wmissing-prototypes]
int ths7303_setval(struct v4l2_subdev *sd, enum ths7303_filter_mode mode)
^
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
vb2_fop_release might take the video queue mutex lock.
In order to avoid nesting mutexes the private mutex is taken after the
fop_release has finished.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Fix various spelling errors in strings and comments throughout the media
tree. The majority of these were found using Lucas De Marchi's codespell
tool.
[m.chehab@samsung.com: discard hunks with conflicts]
Signed-off-by: Jonathan McCrohan <jmccrohan@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Currently it is not possible for userspace to map a DMABUF exported buffer
with write permissions. This patch allows to also pass O_RDONLY/O_RDWR when
exporting the buffer, so that userspace may map it with write permissions.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This mirrors the patch to the radio-shark driver by Geert Uytterhoeven.
If SHARK_USE_LEDS=1, but CONFIG_PM=n:
drivers/media/radio/radio-shark2.c:240: warning: ‘shark_resume_leds’ defined but not used
Instead of making the #ifdef logic even more complicated (there are already
two definitions of shark_resume_leds()), mark shark_resume_leds() inline to
kill the compiler warning. shark_resume_leds() is small and it has only one
caller.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
If SHARK_USE_LEDS=1, but CONFIG_PM=n:
drivers/media/radio/radio-shark.c:275: warning: ‘shark_resume_leds’ defined but not used
Instead of making the #ifdef logic even more complicated (there are already
two definitions of shark_resume_leds()), mark shark_resume_leds() inline to
kill the compiler warning. shark_resume_leds() is small and it has only one
caller.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Fix kernel warning and failure to register sensor hub devices with MFD. Now
many devices has in-built sensor hubs. So by default this HID hub, is properly
parsed and register individual sensors as platform device using MFD framework.
But if a second sensor hub is attached via USB, which has same sensors, it will
result in kernel warning and failure to register MFD cell as the platform
device sysfs file name will be same as created by in-built sensor hubs. This
patch sets MFD cell id to PLATFORM_DEVID_AUTO. In this way there will never be
duplicate sysfs file names.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The address being used to calculate the offset was the memory address
but the address needed is the address mapped to the dso. i.e. the 'addr'
member of 'struct addr_location'
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1386315778-11633-2-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Now that scatterwalk_sg_chain sets the chain pointer bit the sg_page
call in scatterwalk_sg_next hits a BUG_ON when CONFIG_DEBUG_SG is
enabled. Use sg_chain_ptr instead of sg_page on a chain entry.
Cc: stable@vger.kernel.org
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Without this, the USB devices are sometimes not detected on OMAP4 Panda
with u-boot v2013.10.
Unlike what the comment states, errata i660 does not state that we
can't RESET the USB host module. Instead it states that RESET is the
only way to recover from a deadlock situation.
RESET ensures that the module is in a known good state irrespective
of what bootloader does with the module, so it must be done at boot.
Reported-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Tested-by: Tomi Valkeinen <tomi.valkeinen@ti.com> # Panda, BeagleXM
Acked-by: Benoît Cousson <bcousson@baylibre.com>
Fixes: af88fa9aa7 ("ARM: OMAP: USB: EHCI and OHCI hwmod structures for OMAP4")
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Here is a single n_tty fix for 3.13-rc3 that resolves a regression in 3.12 that
has been reported.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty fix from Greg KH:
"Here is a single n_tty fix for 3.13-rc3 that resolves a regression in
3.12 that has been reported"
* tag 'tty-3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
n_tty: Fix missing newline echo
Here are some bugfixes for the staging and IIO drivers for 3.13-rc3.
The resolve the vm memory issue in the tidspbridge driver, fix a much-reported
build failure in an ARM driver, and some other IIO bugfixes that have been
reported.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg KH:
"Here are some bugfixes for the staging and IIO drivers for 3.13-rc3.
The resolve the vm memory issue in the tidspbridge driver, fix a
much-reported build failure in an ARM driver, and some other IIO
bugfixes that have been reported"
* tag 'staging-3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
Staging: TIDSPBRIDGE: Use vm_iomap_memory for mmap-ing instead of remap_pfn_range
Fix build failure for gp2ap020a00f.c
iio: hid-sensors: Fix power and report state
HID: hid-sensor-hub: Add logical min and max
Nothing huge, just a few small bugfixes for problems reported, and a device id
update.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Nothing huge, just a few small bugfixes for problems reported, and a
device id update"
* tag 'char-misc-3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
mei: add 9 series PCH mei device ids
drivers/char/i8k.c: add Dell XPLS L421X
MAINTAINERS: add HSI subsystem
misc: mic: Suppress memory space sparse warnings
misc: mic: Fix endianness issues.
misc: mic: Fix user space namespace pollution from mic_common.h.
misc: mic: Bug fix for sysfs poll usage.
misc: mic: Minor bug fix in 'retry' loops.
misc: mic: Change mic_notify(...) to return true.
extcon: remove freed groups caused the panic or warning in unregister flow
extcon: arizona: Get pdata from arizona structure not device
Here are a bunch of USB fixes for 3.13-rc3.
Nothing major, but we seem to have an argument about a XHCI fix, so I'm not
including a revert that Sarah requested, because that breaks a USB network
driver, and I can't revert the USB network driver fix without reintroducing
other bugs that it fixed. So as it is, everything should now be
working. Worse case, I can revert the XHCI fix before 3.13-final is
out, but it seems to work well here with my testing, so all should be
good.
Other than that, some driver updates based on reports.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a bunch of USB fixes for 3.13-rc3.
Nothing major, but we seem to have an argument about a XHCI fix, so
I'm not including a revert that Sarah requested, because that breaks a
USB network driver, and I can't revert the USB network driver fix
without reintroducing other bugs that it fixed. So as it is,
everything should now be working. Worse case, I can revert the XHCI
fix before 3.13-final is out, but it seems to work well here with my
testing, so all should be good.
Other than that, some driver updates based on reports"
* tag 'usb-3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (40 commits)
usb: hub: Use correct reset for wedged USB3 devices that are NOTATTACHED
usb: ohci-pxa27x: include linux/dma-mapping.h
USB: cdc-acm: Added support for the Lenovo RD02-D400 USB Modem
usb: tools: fix a regression issue that gcc can't link to pthread
USB: switch maintainership of chipidea to Peter
USB: pl2303: fixed handling of CS5 setting
USB: ftdi_sio: fixed handling of unsupported CSIZE setting
USB: mos7840: correct handling of CS5 setting
USB: spcp8x5: correct handling of CS5 setting
usb: wusbcore: fix deadlock in wusbhc_gtk_rekey
usb: wusbcore: do device lookup while holding the hc mutex
usb: wusbcore: send keepalives to unauthenticated devices
USB: option: support new huawei devices
USB: serial: option: blacklist interface 1 for Huawei E173s-6
usb: xhci: Link TRB must not occur within a USB payload burst
usb: gadget: f_mass_storage: call try_to_freeze only when its safe
usb: gadget: tcm_usb_gadget: mark bot_cleanup_old_alt static
usb: gadget: ffs: fix sparse warning
usb: gadget: zero: module parameters can be static
usb: gadget: storage: fix sparse warning
...
Konstantin Khlebnikov