Pull ext3 & udf fixes from Jan Kara:
"Shortlog pretty much says it all.
The interesting bits are UDF support for direct IO and ext3 fix for a
long standing oops in data=journal mode."
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
jbd: Fix assertion failure in commit code due to lacking transaction credits
UDF: Add support for O_DIRECT
ext3: Replace 0 with NULL for pointer in super.c file
udf: add writepages support for udf
ext3: don't clear orphan list on ro mount with errors
reiserfs: Make reiserfs_xattr_handlers static
crash is detected, this mechanism will remove all virtio children
devices, wait until their drivers let go, hard reset the remote
processor and reload the firmware (resulting in the relevant virtio
children devices re-added). Essentially the entire software stack
is reset, together with the relevant hardware, so users don't have
to reset the entire phone.
- STE Modem driver is added - by Sjur Brændeland
- OMAP DSP boot address support is added - by Juan Gutierrez
- A handful of fixes/cleanups - Sjur Brændeland, Dan Carpenter, Emil Goode
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Merge tag 'remoteproc-for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc
Pull remoteproc update from Ohad Ben-Cohen:
- Remoteproc Recovery - by Fernando Guzman Lugo
When a remote processor crash is detected, this mechanism will remove
all virtio children devices, wait until their drivers let go, hard
reset the remote processor and reload the firmware (resulting in the
relevant virtio children devices re-added). Essentially the entire
software stack is reset, together with the relevant hardware, so
users don't have to reset the entire phone.
- STE Modem driver is added - by Sjur Brændeland
- OMAP DSP boot address support is added - by Juan Gutierrez
- A handful of fixes/cleanups - Sjur Brændeland, Dan Carpenter, Emil
Goode
* tag 'remoteproc-for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc:
remoteproc: Fix use of format specifyer
remoteproc: fix a potential NULL-dereference on cleanup
remoteproc: select VIRTIO to avoid build breakage
remoteproc: return -EFAULT on copy_from_user failure
remoteproc: snprintf() can return more than was printed
remoteproc: Add STE modem driver
remtoteproc: maintain max notifyid
remoteproc: create a 'recovery' debugfs entry
remoteproc: add actual recovery implementation
remoteproc: add rproc_report_crash function to notify rproc crashes
remoteproc: Add dependency to HAS_DMA
remoteproc/omap: set bootaddr support
Pull crypto update from Herbert Xu:
- Optimised AES/SHA1 for ARM.
- IPsec ESN support in talitos and caam.
- x86_64/avx implementation of cast5/cast6.
- Add/use multi-algorithm registration helpers where possible.
- Added IBM Power7+ in-Nest support.
- Misc fixes.
Fix up trivial conflicts in crypto/Kconfig due to the sparc64 crypto
config options being added next to the new ARM ones.
[ Side note: cut-and-paste duplicate help texts make those conflicts
harder to read than necessary, thanks to git being smart about
minimizing conflicts and maximizing the common parts... ]
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (71 commits)
crypto: x86/glue_helper - fix storing of new IV in CBC encryption
crypto: cast5/avx - fix storing of new IV in CBC encryption
crypto: tcrypt - add missing tests for camellia and ghash
crypto: testmgr - make test_aead also test 'dst != src' code paths
crypto: testmgr - make test_skcipher also test 'dst != src' code paths
crypto: testmgr - add test vectors for CTR mode IV increasement
crypto: testmgr - add test vectors for partial ctr(cast5) and ctr(cast6)
crypto: testmgr - allow non-multi page and multi page skcipher tests from same test template
crypto: caam - increase TRNG clocks per sample
crypto, tcrypt: remove local_bh_disable/enable() around local_irq_disable/enable()
crypto: tegra-aes - fix error return code
crypto: crypto4xx - fix error return code
crypto: hifn_795x - fix error return code
crypto: ux500 - fix error return code
crypto: caam - fix error IDs for SEC v5.x RNG4
hwrng: mxc-rnga - Access data via structure
hwrng: mxc-rnga - Adapt clocks to new i.mx clock framework
crypto: caam - add IPsec ESN support
crypto: 842 - remove .cra_list initialization
Revert "[CRYPTO] cast6: inline bloat--"
...
Currently tracepoint events cannot be completed because they contain a
colon (:) character. The colon is considered as a word separator when
bash completion is done - variable COMP_WORDBREAKS contains colon - so
if a word being completed contains a colon it can be a problem.
Recent versions of bash completion provide -n switch to
_get_comp_words_by_ref and __ltrim_colon_completions functions in order
to resolve this issue. Copy the latter in case not exists.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1349328234-16995-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Register pfn_is_ram helper speed up reading /proc/vmcore in the kdump
kernel. See commit message of 997c136f51 ("fs/proc/vmcore.c: add hook
to read_from_oldmem() to check for non-ram pages") for details.
It makes use of a new hvmop HVMOP_get_mem_type which was introduced in
xen 4.2 (23298:26413986e6e0) and backported to 4.1.1.
The new function is currently only enabled for reading /proc/vmcore.
Later it will be used also for the kexec kernel. Since that requires
more changes in the generic kernel make it static for the time being.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Backend drivers shouldn't transistion to CLOSED unless the frontend is
CLOSED. If a backend does transition to CLOSED too soon then the
frontend may not see the CLOSING state and will not properly shutdown.
So, treat an unexpected backend CLOSED state the same as CLOSING.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
When watching the interrupts through /proc/interrupts,
the name of the interrupts are blank or garbage. The
reason is the pointer passed for devname during irq
registration is stack and so it get changed after
dma registration completes.
Allocate the pointer as part of dma channel and pass
this pointer as the devname for irq registration to
avoid change of name.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reported-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
The code using the variable 'i' in this function is conditional which
results in a harmless compiler warning. Using the IS_ENABLED macro
instead of #ifdef makes the code look nicer and gets rid of the
warning.
Without this patch, building at91sam9263_defconfig results in:
/home/arnd/linux-arm/arch/arm/mach-at91/pm.c: In function 'at91_pm_verify_clocks':
/home/arnd/linux-arm/arch/arm/mach-at91/pm.c:137:6: warning: unused variable 'i' [-Wunused-variable]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Hi,
the patch si simple, but it has user visible impact and I'm not quite sure how
to resolve it.
In short, $subj says it, chattr -C supports it and we want to use it.
The conditions that acutally allow to change the NOCOW flag are clear. What if
I try to set the flag on a file that is not empty? Options:
1) whole ioctl will fail, EINVAL
2.1) ioctl will succeed, the NOCOW flag will be silently removed, but the file
will stay COW-ed and checksummed
2.2) ioctl will succeed, flag will not be removed and a syslog message will
warn that the COW flag has not been changed
2.2.1) dtto, no syslog message
Man page of chattr states that
"If it is set on a file which already has data blocks, it is undefined when
the blocks assigned to the file will be fully stable."
Yes, it's undefined and with current implementation it'll never happen. So from
this end, the user cannot expect anything. I'm trying to find a reasonable
behaviour, so that a command like 'chattr -R -aijS +C' to tweak a broad set of
flags in a deep directory does not fail unnecessarily and does not pollute the
log.
My personal preference is 2.2.1, but my dev's oppinion is skewed, not counting
the fact that I know the code and otherwise would look there before consulting
the documentation.
The patch implements 2.2.1.
david
-------------8<-------------------
From: David Sterba <dsterba@suse.cz>
It's safe to turn off checksums for a zero sized file.
http://thread.gmane.org/gmane.comp.file-systems.btrfs/18030
"We cannot switch on NODATASUM for a file that already has extents that
are checksummed. The invariant here is that either all the extents or
none are checksummed.
Theoretically it's possible to add/remove all checksums from a given
file, but it's a potentially longtime operation, the file has to be in
some intermediate state where the checksums partially exist but have to
be ignored (for the csum->nocsum) until the file is fully converted,
this brings more special cases to extent handling, it has to survive
power failure and remain consistent, and probably needs to be restarted
after next mount."
Signed-off-by: David Sterba <dsterba@suse.cz>
I saw the warning in btrfs_drop_extent_cache where our end is less than our
start while running xfstests 68 in a loop. This is because we
unconditionally do drop_end = min(end, extent_end) in
__btrfs_drop_extents(), even though we may not have found an extent in the
range we were looking to drop. So keep track of wether or not we found
something, and if we didn't just use our end. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
We do not need to do anything special to freeze or unfreeze, it's all taken
care of by the generic work, and what we currently have is wrong anyway
since we shouldn't be returnning to userspace with mutexes held anyway.
Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
The btree inode has it's own write cache pages so we can remove this write
cache pages hook as it's not used. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
We can race when checking wether PagePrivate is set on a page and we
actually have an eb saved in the pages private pointer. We could have
easily written out this page and released it in the time that we did the
pagevec lookup and actually got around to looking at this page. So use
mapping->private_lock to ensure we get a consistent view of the
page->private pointer. This is inline with the alloc and releasepage paths
which use private_lock when manipulating page->private. Thanks,
Reported-by: David Sterba <dave@jikos.cz>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Dave Sterba pointed out a sleeping while atomic bug while doing fsync. This
is because I'm an idiot and didn't realize that rwlock's were spin locks, so
we've been holding this thing while doing allocations and such which is not
good. This patch fixes this by dropping the write lock before we do
anything heavy and re-acquire it when it is done. We also need to take a
ref on the em's in case their corresponding pages are evicted and mark them
as being logged so that releasepage does not remove them and doesn't remove
them from our local list. Thanks,
Reported-by: Dave Sterba <dave@jikos.cz>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
So we start our freeze, somebody comes in and does an fsync() on a file
where we have to commit a transaction for whatever reason, and we will
deadlock because the freeze is waiting on FS_FREEZE people to stop writing
to the file system, but the transaction is waiting for its free space inodes
to be written out, which are in turn waiting on sb_start_intwrite while
trying to write the file extents. To fix this we'll just skip the
sb_start_intwrite() if we TRANS_JOIN_NOLOCK since we're being waited on by a
transaction commit so we're safe wrt to freeze and this will keep us from
deadlocking. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
I screwed this up, there is a race between checking if there is a running
transaction and actually starting a transaction in sync where we could race
with a freezer and get ourselves into trouble. To fix this we need to make
a new join type to only do the try lock on the freeze stuff. If it fails
we'll return EPERM and just return from sync. This fixes a hang Liu Bo
reported when running xfstest 68 in a loop. Thanks,
Reported-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
A subvolume cannot be deleted via rmdir, but the error code ENOTEMPTY
is confusing. Return EPERM instead, as this is not permitted.
Signed-off-by: David Sterba <dsterba@suse.cz>
Using for_each_set_bit_from() to simplify the code.
spatch with a semantic match is used to found this.
(http://coccinelle.lip6.fr/)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Unnecessary lookup_extent_mapping() is removed because an error is
returned to the caller.
This patch was made based on the advice from Stefan Behrens, thanks.
Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
In order to use an off the shelf nic, like the intel pro card,
changes are needed to support pci dma interfaces and other
small changes.
Signed-off-by: John Linn <john.linn@xilinx.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
When u-boot passes control over to Linux it places the Linux command
line between to the end of __init_end. When space between
__init_end and __bss_start is not COMMAND_LINE_SIZE then
the part of cmdline can be lost.
In extreme case if __init_end == __bss_start u-boot can't pass
any cmdline to Linux kernel.
This patch fix this issue by copying cmd line directly to
cmd_line char array which is placed in data section.
Reported-by: David Mc Andrew <david.mcandrew@xilinx.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
Add support for page size which is supported by MMU.
Remove 8k and 32k page size because they are not supported
by MMU.
Signed-off-by: Michal Simek <monstr@monstr.eu>
This lets a dts author flag a particular timer in the system as the system timer.
If the chosen node contains a "system-timer=<&foo>" entry than that handle will
be used to determine the system timer. In no such entry exists then the first
found timer will be used (current behaviour).
Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
Nothing includes <asm/clinkage.h>. It has actually never been included
since it was added to the tree in commit
9981cd94d5 ("microblaze_v8: clinkage.h
linkage.h sections.h kmap_types.h"). That's not surprising, since
including it is indistinguishable from including <linux/linkage.h>. It
can safely be removed.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
The following patch adds perf_event support for the Xeon-Phi
PMU, as documented in the "Intel Xeon Phi Coprocessor (codename:
Knights Corner) Performance Monitoring Units" manual.
Even though it is a co-processor, a Phi runs a full Linux
environment and can support performance counters.
This is just barebones support, it does not add support for
interesting new features such as the SPFLT intruction that
allows starting/stopping events without entering the kernel.
The PMU internally is just like that of an original Pentium, but
a "P6-like" MSR interface is provided. The interface is
different enough from a real P6 that it's not easy (or
practical) to re-use the code in perf_event_p6.c
Acked-by: Lawrence F Meadows <lawrence.f.meadows@intel.com>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Vince Weaver <vincent.weaver@maine.edu>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: eranian@gmail.com
Cc: Lawrence F <lawrence.f.meadows@intel.com>
Link: http://lkml.kernel.org/r/alpine.DEB.2.02.1209261405320.8398@vincent-weaver-1.um.maine.edu
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Split compound conditionals containing __KERNEL__ in Arm64 where possible to
make it easier for the UAPI disintegration scripts to handle them.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
asm-generic/unistd.h and a number of asm/unistd.h files have been given
reinclusion guards that allow the guard to be overridden if __SYSCALL is
defined. Unfortunately, these files define __SYSCALL and don't undefine it
when they've finished with it, thus rendering the guard ineffective.
The reason for this override is to allow the file to be #included multiple
times with different settings on __SYSCALL for purposes like generating syscall
tables.
The following guards are problematic:
arch/arm64/include/asm/unistd.h:#if !defined(__ASM_UNISTD_H) || defined(__SYSCALL)
arch/arm64/include/asm/unistd32.h:#if !defined(__ASM_UNISTD32_H) || defined(__SYSCALL)
arch/c6x/include/asm/unistd.h:#if !defined(_ASM_C6X_UNISTD_H) || defined(__SYSCALL)
arch/hexagon/include/asm/unistd.h:#if !defined(_ASM_HEXAGON_UNISTD_H) || defined(__SYSCALL)
arch/openrisc/include/asm/unistd.h:#if !defined(__ASM_OPENRISC_UNISTD_H) || defined(__SYSCALL)
arch/score/include/asm/unistd.h:#if !defined(_ASM_SCORE_UNISTD_H) || defined(__SYSCALL)
arch/tile/include/asm/unistd.h:#if !defined(_ASM_TILE_UNISTD_H) || defined(__SYSCALL)
arch/unicore32/include/asm/unistd.h:#if !defined(__UNICORE_UNISTD_H__) || defined(__SYSCALL)
include/asm-generic/unistd.h:#if !defined(_ASM_GENERIC_UNISTD_H) || defined(__SYSCALL)
On the assumption that the guards' ineffectiveness has passed unnoticed, just
remove these guards entirely.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Glue_helper incorrectly XORs new IV over old IV at end of CBC encryption
function when it should store. This causes CBC encryption to give
incorrect output on multi-page encryption requests.
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Now that we correctly generate it, this hack is no longer required (and
might actually paper over a serious bug).
pageflip timestamps are sanity check in the latest version of the flip-test
in intel-gpu-tools.
v2: Also remove the gettimeofday(&now) which is no longer used.
Noticed by Mario Kleiner.
Reviewed-by: mario.kleiner@tuebingen.mpg.de
Tested-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
... since finish_page_flip needs the vblank timestamp generated
in drm_handle_vblank. Somehow all the gmch platforms get it right,
but all the pch platform irq handlers get is wrong. Hooray for copy&
pasting!
Currently this gets papered over by a gross hack in finish_page_flip.
A second patch will remove that.
Note that without this, the new timestamp sanity checks in flip_test
occasionally get tripped up, hence the cc: stable tag.
Cc: stable@vger.kernel.org
Reviewed-by: mario.kleiner@tuebingen.mpg.de
Tested-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Falling into default case in vmi915_gem_fault is a bug. Be more
verbose about it.
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Subsequent threads returning EBUSY from vm_insert_pfn() was not handled
correctly. As a result concurrent access from new threads to
mmapped data caused SIGBUS.
Note that this fixes i-g-t/tests/gem_threaded_tiled_access.
Tested-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Dmitry Rogozhkin <dmitry.v.rogozhkin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
In commit cdb0e95bf5
Author: Keith Packard <keithp@keithp.com>
Date: Tue Nov 1 20:00:06 2011 -0700
drm/i915: Try harder during dp pattern 1 link training
extra passes were made to retry the same voltage and then retry a full
clock reset. However, as coverity pointed out, we never tried the full
clock reset as we broke out of the loop early.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
On NOMMU systems, we do cannot remap the MMIO space, so the
definition of at91_io_desc is unused.
Without this patch, building at91x40_defconfig results in:
arch/arm/mach-at91/setup.c:90:24: warning: 'at91_io_desc' defined but not used [-Wunused-variable]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
The symbol "GPIO24_SSP1_SFRM" is defined in both mfp-pxa27x.h and
mfp-pxa25x.h. Since the macro is not actually used in the cm-x2xx.c
file, but it includes both headers, a safe workaround should be
to just undefine it from the .c file. This is a bit hacky and
the headers should be fixed to not both define it, but for now
it gets us around an annoying warning.
Without this patch, building cm_x2xx_defconfig results in:
In file included from arch/arm/mach-pxa/include/mach-pxa/pxa27x.h:7:0,
from arch/arm/mach-pxa/cm-x2xx.c:25:
arch/arm/mach-pxa/include/mach-pxa/mfp-pxa27x.h:215:0: warning: "GPIO24_SSP1_SFRM" redefined [enabled by default]
arch/arm/mach-pxa/include/mach-pxa/mfp-pxa25x.h:111:0: note: this is the location of the previous definition
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Mike Rapoport <mike@compulab.co.il>
The sharpsl_fatal_check has not been used since Pavel Machek removed
the caller in 99f329a2b "pxa/sharpsl_pm: zaurus c3000 aka spitz: fix
resume". Nobody has complained since 2009, so it's safe to assume we
can just remove the function.
Without this patch, building corgi_defconfig results in:
/home/arnd/linux-arm/arch/arm/mach-pxa/sharpsl_pm.c:693:12: warning: 'sharpsl_fatal_check' defined but not used [-Wunused-function]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Stanislav Brabec <utx@penguin.cz>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Gcc prints a harmless warning about palmte2_pxa_keys not being used
when the gpio keyboard driver is disabled. The solution is to use
the same #ifdef that is already present in the place where the
symbol is used.
Without this patch, building palmz72_defconfig results in:
/home/arnd/linux-arm/arch/arm/mach-pxa/palmte2.c:128:31: warning: 'palmte2_pxa_keys' defined but not used [-Wunused-variable]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Carlos Eduardo Medaglia Dyonisio <cadu@nerdfeliz.com>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
Calling kstrtoul requires checking the result. In case of
the viper_tpm_setup function, let's fail the __setup function
if the number was invalid.
Without this patch, building viper_defconfig results in:
arch/arm/mach-pxa/viper.c: In function 'viper_tpm_setup':
arch/arm/mach-pxa/viper.c:771:10: warning: ignoring return value of 'kstrtoul', declared with attribute warn_unused_result [-Wunused-result]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Marc Zyngier <maz@misterjones.org>
Cc: Haojian Zhuang <haojian.zhuang@marvell.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
