With netconsole (at least) the pr_err("... disablingn") call can
recurse back into the dma-debug code, where it'll try to grab
free_entries_lock again. Avoid the problem by doing the printk after
dropping the lock.
Link: http://lkml.kernel.org/r/1463678421-18683-1-git-send-email-ville.syrjala@linux.intel.com
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mmput_async is currently used only from the oom_reaper which is defined
only for CONFIG_MMU. We can save work_struct in mm_struct for
!CONFIG_MMU.
[akpm@linux-foundation.org: fix typo, per Minchan]
Link: http://lkml.kernel.org/r/20160520061658.GB19172@dhcp22.suse.cz
Reported-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Michal Hocko <mhocko@suse.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mem_cgroup_out_of_memory() is returning "true" if it finds a TIF_MEMDIE
task after an eligible task was found, "false" if it found a TIF_MEMDIE
task before an eligible task is found.
This difference confuses memory_max_write() which checks the return
value of mem_cgroup_out_of_memory(). Since memory_max_write() wants to
continue looping, mem_cgroup_out_of_memory() should return "true" in
this case.
This patch sets a dummy pointer in order to return "true".
Link: http://lkml.kernel.org/r/1463753327-5170-1-git-send-email-penguin-kernel@I-love.SAKURA.ne.jp
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Vladimir Davydov <vdavydov@virtuozzo.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Previously, if a bad inode was found in ocfs2_iget(), -ESTALE was
returned back to the caller anyway. Since commit d2b9d71a2da7 ("ocfs2:
check/fix inode block for online file check") can handle with return
value from ocfs2_read_locked_inode() now, we know the exact errno
returned for us.
Link: http://lkml.kernel.org/r/1463970656-18413-1-git-send-email-zren@suse.com
Signed-off-by: Eric Ren <zren@suse.com>
Reviewed-by: Joseph Qi <joseph.qi@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.de>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Per the suggestion from Michal Hocko [1], DEFERRED_STRUCT_PAGE_INIT
requires some ordering wrt other initialization operations, e.g.
page_ext_init has to happen after the whole memmap is initialized
properly.
For SPARSEMEM this requires to wait for page_alloc_init_late. Other
memory models (e.g. flatmem) might have different initialization
layouts (page_ext_init_flatmem). Currently DEFERRED_STRUCT_PAGE_INIT
depends on MEMORY_HOTPLUG which in turn
depends on SPARSEMEM || X86_64_ACPI_NUMA
depends on ARCH_ENABLE_MEMORY_HOTPLUG
and X86_64_ACPI_NUMA depends on NUMA which in turn disable FLATMEM
memory model:
config ARCH_FLATMEM_ENABLE
def_bool y
depends on X86_32 && !NUMA
so FLATMEM is ruled out via dependency maze. Be explicit and disable
FLATMEM for DEFERRED_STRUCT_PAGE_INIT so that we do not reintroduce
subtle initialization bugs
[1] http://lkml.kernel.org/r/20160523073157.GD2278@dhcp22.suse.cz
Link: http://lkml.kernel.org/r/1464027356-32282-1-git-send-email-yang.shi@linaro.org
Signed-off-by: Yang Shi <yang.shi@linaro.org>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
lockless_dereference() is supposed to take pointer not integer.
Link: http://lkml.kernel.org/r/20160521201448.GA7429@p183.telecom.by
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Highlights include:
Features:
- Add support for the NFS v4.2 COPY operation
- Add support for NFS/RDMA over IPv6
Bugfixes and cleanups:
- Avoid race that crashes nfs_init_commit()
- Fix oops in callback path
- Fix LOCK/OPEN race when unlinking an open file
- Choose correct stateids when using delegations in setattr, read and write
- Don't send empty SETATTR after OPEN_CREATE
- xprtrdma: Prevent server from writing a reply into memory client has released
- xprtrdma: Support using Read list and Reply chunk in one RPC call
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
iQIcBAABCAAGBQJXRu76AAoJENfLVL+wpUDrDVoQAKPKv1tEVJMRUQA3UVoKoixd
KjmmZMjl6GfpISwTZl+a8W549jyGuYH7Gl8vSbMaE9/FI+kJW6XZQniTYfFqY8/a
LbMSdNx1+yURisbkyO0vPqqwKw9r6UmsfGeUT8SpS3ff61yp4Oj436ra2qcPJsZ3
cWl/lHItzX7oKFAWmr0Nmq2X8ac/8+NFyK29+V/QGfwtp3qAPbpA8XM5HrHw3rA2
uk5uNSr3hwqz7P3+Hi7ZoO2m4nQTAbQnEunfYpxlOwz4IaM7qcGnntT6Jhwq1pGE
/1YasG7bHeiWjhynmZZ4CWuMkogau2UJ/G68Cz7ehLhPNr8rH/ZFCJZ+XX0e0CgI
1d+AwxZvgszIQVBY3S7sg8ezVSCPBXRFJ8rtzggGscqC53aP7L+rLfUFH+OKrhMg
6n7RQiq4EmGDJGviB/R2HixI9CpdOf2puNhDKSJmPOqiSS7UuHMw8QCq++vdru+1
GLGunGyO7D70yTV92KtsdzJlFlnfa/g+FIJrmaMpL3HH1h0stTctWX5xlTYmqEL3
z3aUuT8RySk2t1FTabSj6KRWqE/krK5BMZbX91kpF27WL4c/olXFaZPqBDsj0q4u
2rm1fIrc8RxLXctJan9ro092s/e9dup/1JxV5XWMq/EGS1ezvf+0XkCOtURaAWp3
2aPHlx7M8iuq2SouL6f7
=QMmY
-----END PGP SIGNATURE-----
Merge tag 'nfs-for-4.7-1' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client updates from Anna Schumaker:
"Highlights include:
Features:
- Add support for the NFS v4.2 COPY operation
- Add support for NFS/RDMA over IPv6
Bugfixes and cleanups:
- Avoid race that crashes nfs_init_commit()
- Fix oops in callback path
- Fix LOCK/OPEN race when unlinking an open file
- Choose correct stateids when using delegations in setattr, read and
write
- Don't send empty SETATTR after OPEN_CREATE
- xprtrdma: Prevent server from writing a reply into memory client
has released
- xprtrdma: Support using Read list and Reply chunk in one RPC call"
* tag 'nfs-for-4.7-1' of git://git.linux-nfs.org/projects/anna/linux-nfs: (61 commits)
pnfs: pnfs_update_layout needs to consider if strict iomode checking is on
nfs/flexfiles: Use the layout segment for reading unless it a IOMODE_RW and reading is disabled
nfs/flexfiles: Helper function to detect FF_FLAGS_NO_READ_IO
nfs: avoid race that crashes nfs_init_commit
NFS: checking for NULL instead of IS_ERR() in nfs_commit_file()
pnfs: make pnfs_layout_process more robust
pnfs: rework LAYOUTGET retry handling
pnfs: lift retry logic from send_layoutget to pnfs_update_layout
pnfs: fix bad error handling in send_layoutget
flexfiles: add kerneldoc header to nfs4_ff_layout_prepare_ds
flexfiles: remove pointless setting of NFS_LAYOUT_RETURN_REQUESTED
pnfs: only tear down lsegs that precede seqid in LAYOUTRETURN args
pnfs: keep track of the return sequence number in pnfs_layout_hdr
pnfs: record sequence in pnfs_layout_segment when it's created
pnfs: don't merge new ff lsegs with ones that have LAYOUTRETURN bit set
pNFS/flexfiles: When initing reads or writes, we might have to retry connecting to DSes
pNFS/flexfiles: When checking for available DSes, conditionally check for MDS io
pNFS/flexfile: Fix erroneous fall back to read/write through the MDS
NFS: Reclaim writes via writepage are opportunistic
NFSv4: Use the right stateid for delegations in setattr, read and write
...
Changes in this update:
o fixes for mount line parsing, sparse warnings, read-only compat
feature remount behaviour
o allow fast path symlink lookups for inline symlinks.
o attribute listing cleanups
o writeback goes direct to bios rather than indirecting through
bufferheads
o transaction allocation cleanup
o optimised kmem_realloc
o added configurable error handling for metadata write errors,
changed default error handling behaviour from "retry forever" to
"retry until unmount then fail"
o fixed several inode cluster writeback lookup vs reclaim race
conditions
o fixed inode cluster writeback checking wrong inode after lookup
o fixed bugs where struct xfs_inode freeing wasn't actually RCU safe
o cleaned up inode reclaim tagging
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=0tYo
-----END PGP SIGNATURE-----
Merge tag 'xfs-for-linus-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs
Pull xfs updates from Dave Chinner:
"A pretty average collection of fixes, cleanups and improvements in
this request.
Summary:
- fixes for mount line parsing, sparse warnings, read-only compat
feature remount behaviour
- allow fast path symlink lookups for inline symlinks.
- attribute listing cleanups
- writeback goes direct to bios rather than indirecting through
bufferheads
- transaction allocation cleanup
- optimised kmem_realloc
- added configurable error handling for metadata write errors,
changed default error handling behaviour from "retry forever" to
"retry until unmount then fail"
- fixed several inode cluster writeback lookup vs reclaim race
conditions
- fixed inode cluster writeback checking wrong inode after lookup
- fixed bugs where struct xfs_inode freeing wasn't actually RCU safe
- cleaned up inode reclaim tagging"
* tag 'xfs-for-linus-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs: (39 commits)
xfs: fix warning in xfs_finish_page_writeback for non-debug builds
xfs: move reclaim tagging functions
xfs: simplify inode reclaim tagging interfaces
xfs: rename variables in xfs_iflush_cluster for clarity
xfs: xfs_iflush_cluster has range issues
xfs: mark reclaimed inodes invalid earlier
xfs: xfs_inode_free() isn't RCU safe
xfs: optimise xfs_iext_destroy
xfs: skip stale inodes in xfs_iflush_cluster
xfs: fix inode validity check in xfs_iflush_cluster
xfs: xfs_iflush_cluster fails to abort on error
xfs: remove xfs_fs_evict_inode()
xfs: add "fail at unmount" error handling configuration
xfs: add configuration handlers for specific errors
xfs: add configuration of error failure speed
xfs: introduce table-based init for error behaviors
xfs: add configurable error support to metadata buffers
xfs: introduce metadata IO error class
xfs: configurable error behavior via sysfs
xfs: buffer ->bi_end_io function requires irq-safe lock
...
Pull hwmon fixlets from Jean Delvare.
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
Documentation/hwmon: Update links in max34440
hwmon: (emc2103) Fix typo in MODULE_PARM_DESC
- Prevent re-tuning while serving requests for RPMB partitions
- Extend timeout for long read time quirk to support more eMMCs
MMC host:
- sdhci-acpi: Ensure connected devices are powered when probing
- sdhci-pci|acpi: Remove unreliable MMC_CAP_BUS_WIDTH_TEST for Intel HWs
- dw_mmc: Correct the assigning of max_blk_size
- dw_mmc-rockchip: Allow RPMB partitions to be created
- dw_mmc-rockchip: Set the drive phase properly
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=zHa6
-----END PGP SIGNATURE-----
Merge tag 'mmc-v4.7-rc1' of git://git.linaro.org/people/ulf.hansson/mmc
Pull MMC fixes from Ulf Hansson:
"Here are some mmc fixes intended for v4.7 rc1. They are based on a
commit earlier in the merge window and have been tested in linux-next
for a while.
MMC core:
- Prevent re-tuning while serving requests for RPMB partitions
- Extend timeout for long read time quirk to support more eMMCs
MMC host:
- sdhci-acpi: Ensure connected devices are powered when probing
- sdhci-pci|acpi: Remove unreliable MMC_CAP_BUS_WIDTH_TEST for Intel HWs
- dw_mmc: Correct the assigning of max_blk_size
- dw_mmc-rockchip: Allow RPMB partitions to be created
- dw_mmc-rockchip: Set the drive phase properly"
* tag 'mmc-v4.7-rc1' of git://git.linaro.org/people/ulf.hansson/mmc:
mmc: sdhci-acpi: Remove MMC_CAP_BUS_WIDTH_TEST for Intel controllers
mmc: sdhci-pci: Remove MMC_CAP_BUS_WIDTH_TEST for Intel controllers
mmc: longer timeout for long read time quirk
mmc: dw_mmc: rockchip: Set the drive phase properly
mmc: dw_mmc: fix the wrong max_blk_size
mmc: dw_mmc-rockchip: add MMC_CAP_CMD23 capabilities
mmc: sdhci-acpi: Ensure connected devices are powered when probing
ACPI / PM: Export acpi_device_fix_up_power()
mmc: block: Pause re-tuning while switched to the RPMB partition
mmc: block: Always switch back to main area after RPMB access
mmc: core: Add a facility to "pause" re-tuning
Pull thermal management updates from Zhang Rui:
- Introduce generic ADC thermal driver, based on OF thermal (Laxman
Dewangan)
- Introduce new thermal driver for Tango chips (Marc Gonzalez)
- Rockchip driver support for RK3399, RK3366, and some fixes (Caesar
Wang, Elaine Zhang and Shawn Lin)
- Add CPU power cooling model to Mediatek thermal driver (Dawei Chien)
- Wider usage of dev_thermal_zone_of_sensor_register (Eduardo Valentin)
- TI thermal driver gained a new maintainer (Keerthy).
- Enabled powerclamp driver by checking CPU feature and package cstate
counter instead of CPU whitelist (Jacob Pan)
- Various fixes on thermal governor, OF thermal, Tegra, and RCAR
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (50 commits)
thermal: tango: initialize TEMPSI_CFG
thermal: rockchip: use the usleep_range instead of udelay
thermal: rockchip: add the notes for better reading
thermal: rockchip: Support RK3366 SoCs in the thermal driver
thermal: rockchip: handle the power sequence for tsadc controller
thermal: rockchip: update the tsadc table for rk3399
thermal: rockchip: fixes the code_to_temp for tsadc driver
thermal: rockchip: disable thermal->clk in err case
thermal: tegra: add Tegra132 specific SOC_THERM driver
thermal: fix ptr_ret.cocci warnings
thermal: mediatek: Add cpu dynamic power cooling model.
thermal: generic-adc: Add ADC based thermal sensor driver
thermal: generic-adc: Add DT binding for ADC based thermal sensor
thermal: tegra: fix static checker warning
thermal: tegra: mark PM functions __maybe_unused
thermal: add temperature sensor support for tango SoC
thermal: hisilicon: fix IRQ imbalance enabling
thermal: hisilicon: support to use any sensor
thermal: rcar: Remove binding docs for r8a7794
thermal: tegra: add PM support
...
Pull Yama locking fix from James Morris:
"Fix for the Yama LSM"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
Yama: fix double-spinlock and user access in atomic context
As flexfiles has FF_FLAGS_NO_READ_IO, there is a need to generically
support enforcing that a IOMODE_RW segment will not allow READ I/O.
Signed-off-by: Tom Haynes <loghyr@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
It appears the website for maxim-ic.com changed to
maximintegrated.com.
Signed-off-by: Glenn Dayton <glenn.dayton24@gmail.com>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Pull x86 fixes from Ingo Molnar:
"Misc fixes: EFI, entry code, pkeys and MPX fixes, TASK_SIZE cleanups
and a tsc frequency table fix"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Switch from TASK_SIZE to TASK_SIZE_MAX in the page fault code
x86/fsgsbase/64: Use TASK_SIZE_MAX for FSBASE/GSBASE upper limits
x86/mm/mpx: Work around MPX erratum SKD046
x86/entry/64: Fix stack return address retrieval in thunk
x86/efi: Fix 7-parameter efi_call()s
x86/cpufeature, x86/mm/pkeys: Fix broken compile-time disabling of pkeys
x86/tsc: Add missing Cherrytrail frequency to the table
Pull scheduler fixes from Ingo Molnar:
"Two fixes: one for a lost wakeup, the other to fix the compiler
optimizing out preempt operations on ARM64 (and possibly other non-x86
architectures)"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/core: Fix remote wakeups
sched/preempt: Fix preempt_count manipulations
Pull perf updates from Ingo Molnar:
"Mostly tooling and PMU driver fixes, but also a number of late updates
such as the reworking of the call-chain size limiting logic to make
call-graph recording more robust, plus tooling side changes for the
new 'backwards ring-buffer' extension to the perf ring-buffer"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (34 commits)
perf record: Read from backward ring buffer
perf record: Rename variable to make code clear
perf record: Prevent reading invalid data in record__mmap_read
perf evlist: Add API to pause/resume
perf trace: Use the ptr->name beautifier as default for "filename" args
perf trace: Use the fd->name beautifier as default for "fd" args
perf report: Add srcline_from/to branch sort keys
perf evsel: Record fd into perf_mmap
perf evsel: Add overwrite attribute and check write_backward
perf tools: Set buildid dir under symfs when --symfs is provided
perf trace: Only auto set call-graph to "dwarf" when syscalls are being traced
perf annotate: Sort list of recognised instructions
perf annotate: Fix identification of ARM blt and bls instructions
perf tools: Fix usage of max_stack sysctl
perf callchain: Stop validating callchains by the max_stack sysctl
perf trace: Fix exit_group() formatting
perf top: Use machine->kptr_restrict_warned
perf trace: Warn when trying to resolve kernel addresses with kptr_restrict=1
perf machine: Do not bail out if not managing to read ref reloc symbol
perf/x86/intel/p4: Trival indentation fix, remove space
...
Commit 8a56038c2a ("Yama: consolidate error reporting") causes lockups
when someone hits a Yama denial. Call chain:
process_vm_readv -> process_vm_rw -> process_vm_rw_core -> mm_access
-> ptrace_may_access
task_lock(...) is taken
__ptrace_may_access -> security_ptrace_access_check
-> yama_ptrace_access_check -> report_access -> kstrdup_quotable_cmdline
-> get_cmdline -> access_process_vm -> get_task_mm
task_lock(...) is taken again
task_lock(p) just calls spin_lock(&p->alloc_lock), so at this point,
spin_lock() is called on a lock that is already held by the current
process.
Also: Since the alloc_lock is a spinlock, sleeping inside
security_ptrace_access_check hooks is probably not allowed at all? So it's
not even possible to print the cmdline from in there because that might
involve paging in userspace memory.
It would be tempting to rewrite ptrace_may_access() to drop the alloc_lock
before calling the LSM, but even then, ptrace_may_access() itself might be
called from various contexts in which you're not allowed to sleep; for
example, as far as I understand, to be able to hold a reference to another
task, usually an RCU read lock will be taken (see e.g. kcmp() and
get_robust_list()), so that also prohibits sleeping. (And using e.g. FUSE,
a user can cause pagefault handling to take arbitrary amounts of time -
see https://bugs.chromium.org/p/project-zero/issues/detail?id=808.)
Therefore, AFAIK, in order to print the name of a process below
security_ptrace_access_check(), you'd have to either grab a reference to
the mm_struct and defer the access violation reporting or just use the
"comm" value that's stored in kernelspace and accessible without big
complications. (Or you could try to use some kind of atomic remote VM
access that fails if the memory isn't paged in, similar to
copy_from_user_inatomic(), and if necessary fall back to comm, but
that'd be kind of ugly because the comm/cmdline choice would look
pretty random to the user.)
Fix it by deferring reporting of the access violation until current
exits kernelspace the next time.
v2: Don't oops on PTRACE_TRACEME, call report_access under
task_lock(current). Also fix nonsensical comment. And don't use
GPF_ATOMIC for memory allocation with no locks held.
This patch is tested both for ptrace attach and ptrace traceme.
Fixes: 8a56038c2a ("Yama: consolidate error reporting")
Signed-off-by: Jann Horn <jann@thejh.net>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: James Morris <james.l.morris@oracle.com>
Pull objtool build fix from Ingo Molnar:
"An libtool fix for older libelf versions"
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool: Allow building with older libelf
Pull vfs iov_iter regression fix from Al Viro:
"Fix for braino in 'fold checks into iterate_and_advance()'"
* 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
do "fold checks into iterate_and_advance()" right
Pull vfs xattr regression fixes from Al Viro.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
make xattr_resolve_handlers() safe to use with NULL ->s_xattr
xattr: Fail with -EINVAL for NULL attribute names
Just one fix for incorrect async_synchronize_cookie() usage in the
ACPI battery driver (Chris Wilson).
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=rO5z
-----END PGP SIGNATURE-----
Merge tag 'acpi-4.7-rc1-more' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Additional ACPI update for v4.7-rc1
Just one fix for incorrect async_synchronize_cookie() usage in the
ACPI battery driver (Chris Wilson)"
* tag 'acpi-4.7-rc1-more' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / battery: Correctly serialise with the pending async probe
- Stable-candidate cpuidle fix to make it check the right variable
when deciding whether or not to enable interrupts on the local CPU
so as to avoid enabling iterrupts too early in some cases if the
system has both coupled and per-core idle states (Daniel Lezcano).
- Stable-candidate PM core fix to make it handle failures at the
"late suspend" stage of device suspend consistently for all
devices regardless of whether or not async suspend/resume is
enabled for them (Rafael Wysocki).
- Cleanups in the cpufreq core, the schedutil governor and the
intel_pstate driver (Rafael Wysocki, Pankaj Gupta, Viresh Kumar).
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=3vtL
-----END PGP SIGNATURE-----
Merge tag 'pm-4.7-rc1-more' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:
"These are two stable-candidate fixes (PM core, cpuidle) and a bunch of
cpufreq cleanups.
Specifics:
- Stable-candidate cpuidle fix to make it check the right variable
when deciding whether or not to enable interrupts on the local CPU
so as to avoid enabling iterrupts too early in some cases if the
system has both coupled and per-core idle states (Daniel Lezcano).
- Stable-candidate PM core fix to make it handle failures at the
"late suspend" stage of device suspend consistently for all devices
regardless of whether or not async suspend/resume is enabled for
them (Rafael Wysocki).
- Cleanups in the cpufreq core, the schedutil governor and the
intel_pstate driver (Rafael Wysocki, Pankaj Gupta, Viresh Kumar)"
* tag 'pm-4.7-rc1-more' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM / sleep: Handle failures in device_suspend_late() consistently
cpufreq: schedutil: Improve prints messages with pr_fmt
cpuidle: Fix cpuidle_state_is_coupled() argument in cpuidle_enter()
cpufreq: simplified goto out in cpufreq_register_driver()
cpufreq: governor: CPUFREQ_GOV_STOP never fails
cpufreq: governor: CPUFREQ_GOV_POLICY_EXIT never fails
intel_pstate: Simplify conditional in intel_pstate_set_policy()
the only case when we should skip the iterate_and_advance() guts
is when nothing's left in the iterator, _not_ just when requested
amount is 0. Said guts will do nothing in the latter case anyway;
the problem we tried to deal with in the aforementioned commit is
that when there's nothing left *and* the amount requested is 0,
we might end up deferencing one iovec too many; the value we fetch
from there is discarded in that case, but theoretically it might
oops if the iovec array ends exactly at the end of page with the
next page not mapped.
Bailing out on zero size requested had an unexpected side effect -
zero-length segment in the beginning of iovec array ended up
throwing do_loop_readv_writev() into infinite spin; we do not
advance past the empty segment at all. Reproducer is trivial:
echo '#include <sys/uio.h>' >a.c
echo 'main() {char c; struct iovec v[] = {{&c,0},{&c,1}}; readv(0,v,2);}' >>a.c
cc a.c && ./a.out </proc/uptime
which should end up with the process not hanging. Probably ought to
go into LTP or xfstests...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Commit 98e9cb57 improved the xattr name checks in xattr_resolve_name but
didn't update the NULL attribute name check appropriately, so NULL
attribute names lead to NULL pointer dereferences. Turn that into
-EINVAL results instead.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
fs/xattr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This set of changes introduces an atomic API to the PWM subsystem. This
is influenced by the DRM atomic API that was introduced a while back,
though it is obviously a lot simpler. The fundamental idea remains the
same, though: drivers provide a single callback to implement the atomic
configuration of a PWM channel.
As a side-effect the PWM subsystem gains the ability for initial state
retrieval, so that the logical state mirrors that of the hardware. Many
use-cases don't care about this, but for others it is essential.
These new features require changes in all users, which these patches
take care of. The core is transitioned to use the atomic callback if
available and provides a fallback mechanism for other drivers.
Changes to transition users and drivers to the atomic API are postponed
to v4.8.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=sxT9
-----END PGP SIGNATURE-----
Merge tag 'pwm/for-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
Pull pwm updates from Thierry Reding:
"This set of changes introduces an atomic API to the PWM subsystem.
This is influenced by the DRM atomic API that was introduced a while
back, though it is obviously a lot simpler. The fundamental idea
remains the same, though: drivers provide a single callback to
implement the atomic configuration of a PWM channel.
As a side-effect the PWM subsystem gains the ability for initial state
retrieval, so that the logical state mirrors that of the hardware.
Many use-cases don't care about this, but for others it is essential.
These new features require changes in all users, which these patches
take care of. The core is transitioned to use the atomic callback if
available and provides a fallback mechanism for other drivers.
Changes to transition users and drivers to the atomic API are
postponed to v4.8"
* tag 'pwm/for-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (30 commits)
pwm: Add information about polarity, duty cycle and period to debugfs
pwm: Switch to the atomic API
pwm: Update documentation
pwm: Add core infrastructure to allow atomic updates
pwm: Add hardware readout infrastructure
pwm: Move the enabled/disabled info into pwm_state
pwm: Introduce the pwm_state concept
pwm: Keep PWM state in sync with hardware state
ARM: Explicitly apply PWM config extracted from pwm_args
drm: i915: Explicitly apply PWM config extracted from pwm_args
input: misc: pwm-beeper: Explicitly apply PWM config extracted from pwm_args
input: misc: max8997: Explicitly apply PWM config extracted from pwm_args
backlight: lm3630a: explicitly apply PWM config extracted from pwm_args
backlight: lp855x: Explicitly apply PWM config extracted from pwm_args
backlight: lp8788: Explicitly apply PWM config extracted from pwm_args
backlight: pwm_bl: Use pwm_get_args() where appropriate
fbdev: ssd1307fb: Use pwm_get_args() where appropriate
regulator: pwm: Use pwm_get_args() where appropriate
leds: pwm: Use pwm_get_args() where appropriate
input: misc: max77693: Use pwm_get_args() where appropriate
...
The mds can inform the client not to use the IOMODE_RW layout
segment for doing READs. I.e., it is basically a
IOMODE_WRITE layout segment.
It would do this to not interfere with the WRITEs.
Signed-off-by: Tom Haynes <loghyr@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Pull watchdog updates from Wim Van Sebroeck:
- add support for Fintek F81865 Super-IO chip
- add support for watchdogs (RWDT and SWDT) found on RCar Gen3 based
SoCs from Renesas
- octeon: Handle the FROZEN hot plug notifier actions
- f71808e_wdt fixes and cleanups
- some small improvements in code and documentation
* git://www.linux-watchdog.org/linux-watchdog:
MAINTAINERS: Add file patterns for watchdog device tree bindings
Documentation: Add ebc-c384_wdt watchdog-parameters.txt entry
watchdog: shwdt: Use setup_timer()
watchdog: cpwd: Use setup_timer()
arm64: defconfig: enable Renesas Watchdog Timer
watchdog: renesas-wdt: add driver
watchdog: remove error message when unable to allocate watchdog device
watchdog: f71808e_wdt: Fix WDTMOUT_STS register read
watchdog: f71808e_wdt: Fix typo
watchdog: f71808e_wdt: Add F81865 support
watchdog: sp5100_tco: properly check for new register layouts
watchdog: core: Fix circular locking dependency
watchdog: core: fix trivial typo in a comment
watchdog: hpwdt: Adjust documentation to match latest kernel module parameters.
watchdog: imx2_wdt: add external reset support via dt prop
watchdog: octeon: Handle the FROZEN hot plug notifier actions.
watchdog: qcom: Report reboot reason
- Hide INTx on certain known broken devices (Alex Williamson)
- Additional backdoor reset detection (Alex Williamson)
- Remove unused iommudata reference (Alexey Kardashevskiy)
- Use cfg_size to avoid probing extended config space (Alexey Kardashevskiy)
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.14 (GNU/Linux)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=fGnT
-----END PGP SIGNATURE-----
Merge tag 'vfio-v4.7-rc1' of git://github.com/awilliam/linux-vfio
Pull VFIO updates from Alex Williamson:
- Hide INTx on certain known broken devices (Alex Williamson)
- Additional backdoor reset detection (Alex Williamson)
- Remove unused iommudata reference (Alexey Kardashevskiy)
- Use cfg_size to avoid probing extended config space (Alexey
Kardashevskiy)
* tag 'vfio-v4.7-rc1' of git://github.com/awilliam/linux-vfio:
vfio_pci: Test for extended capabilities if config space > 256 bytes
vfio_iommu_spapr_tce: Remove unneeded iommu_group_get_iommudata
vfio/pci: Add test for BAR restore
vfio/pci: Hide broken INTx support from user
Pull header warning fix from Dave Airlie:
"Here is the C++ guards warning fix from Arnd"
[ Background: there are 'extern "C" { }' guards in include/uapi for the
GPU headers.
They should arguably be wrapped somehow, but as it is they caused
checkpatch to warn because it would trigger on the 'extern' and think
it's exporting a function or variable from the kernel to user space.
This just fixes checkpatch. Whether we wrap the C++ guards some way
in the future will be an independent issue. ]
* tag 'drm-4.7-rc1-headers-fix' of git://people.freedesktop.org/~airlied/linux:
headers_check: don't warn about c++ guards
Pull parisc updates from Helge Deller:
- Add native high-resolution timing code for sched_clock() and other
timing functions based on the processor internal cr16 cycle counters
- Add syscall tracepoint support
- Add regset support
- Speed up get_user() and put_user() functions
- Updated futex.h to match generic implementation (John David Anglin)
- A few smaller ftrace build fixes
- Fixed thuge-gen kernel self test to utilize architectured MAP_HUGETLB
value
- Added parisc architecture to seccomp_bpf kernel self test
- Various typo fixes (Andrea Gelmini)
* 'parisc-4.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Whitespace cleanups in unistd.h
parisc: Use long jump to reach ftrace_return_to_handler()
parisc: Fix typo in fpudispatch.c
parisc: Fix typos in eisa_eeprom.h
parisc: Fix typo in ldcw.h
parisc: Fix typo in pdc.h
parisc: Update futex.h to match generic implementation
parisc: Merge ftrace C-helper and assembler functions into .text.hot section
selftests/thuge-gen: Use platform specific MAP_HUGETLB value
parisc: Add native high-resolution sched_clock() implementation
parisc: Add ARCH_TRACEHOOK and regset support
parisc: Add 64bit get_user() and put_user() for 32bit kernel
parisc: Simplify and speed up get_user() and put_user()
parisc: Add syscall tracepoint support
Commit:
b5179ac70d ("sched/fair: Prepare to fix fairness problems on migration")
... introduced a bug: Mike Galbraith found that it introduced a
performance regression, while Paul E. McKenney reported lost
wakeups and bisected it to this commit.
The reason is that I mis-read ttwu_queue() such that I assumed any
wakeup that got a remote queue must have had the task migrated.
Since this is not so; we need to transfer this information between
queueing the wakeup and actually doing the wakeup. Use a new
task_struct::sched_flag for this, we already write to
sched_contributes_to_load in the wakeup path so this is a hot and
modified cacheline.
Reported-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reported-by: Mike Galbraith <umgwanakikbuti@gmail.com>
Tested-by: Mike Galbraith <umgwanakikbuti@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Hunter <ahh@google.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Ben Segall <bsegall@google.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Morten Rasmussen <morten.rasmussen@arm.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Paul Turner <pjt@google.com>
Cc: Pavan Kondeti <pkondeti@codeaurora.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Casasnovas <quentin.casasnovas@oracle.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: byungchul.park@lge.com
Fixes: b5179ac70d ("sched/fair: Prepare to fix fairness problems on migration")
Link: http://lkml.kernel.org/r/20160523091907.GD15728@worktop.ger.corp.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This is a first set of bug fixes on top of what was merged for 4.7.
Two patches for lpc32xx address a harmless build warning that was
just introduced, one patch for the mediatek soc driver fixes a warning
for arm64, and the pxa changes are minor cleanups that should have
been part of the original pull requests but that I forgot to apply
to the cleanup-fixes branch earlier.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=LCK3
-----END PGP SIGNATURE-----
Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Arnd Bergmann:
"This is a first set of bug fixes on top of what was merged for 4.7.
Two patches for lpc32xx address a harmless build warning that was just
introduced, one patch for the mediatek soc driver fixes a warning for
arm64, and the pxa changes are minor cleanups that should have been
part of the original pull requests but that I forgot to apply to the
cleanup-fixes branch earlier"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: lpc32xx: fix NR_IRQS confict
ARM: lpc32xx: remove legacy irq controller driver
soc: mtk-pmic-wrap: avoid integer overflow warning
ARM: pxa: Remove CLK_IS_ROOT
ARM: pxa: activate pinctrl for device-tree machines
This is a collection of a few late fixes and other misc. stuff that
had dependencies on things being merged from other trees.
The Renesas R-Car power domain handling, and the Nvidia Tegra USB
support both hand notable changes that required changing the DT binding
in a way that only provides compatibility with old DT blobs on new
kernels but not vice versa. As a consequence, the DT changes
are based on top of the driver changes and are now in this branch.
For NXP i.MX and Samsung Exynos, the changes in here depend on
other changes that got merged through the clk maintainer tree.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=I0Be
-----END PGP SIGNATURE-----
Merge tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC late DT updates from Arnd Bergmann:
"This is a collection of a few late fixes and other misc stuff that had
dependencies on things being merged from other trees.
The Renesas R-Car power domain handling, and the Nvidia Tegra USB
support both hand notable changes that required changing the DT
binding in a way that only provides compatibility with old DT blobs on
new kernels but not vice versa. As a consequence, the DT changes are
based on top of the driver changes and are now in this branch.
For NXP i.MX and Samsung Exynos, the changes in here depend on other
changes that got merged through the clk maintainer tree"
* tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (35 commits)
ARM: dts: exynos: Add support of Bus frequency using VDD_INT for exynos5422-odroidxu3
ARM: dts: exynos: Add bus nodes using VDD_INT for Exynos542x SoC
ARM: dts: exynos: Add NoC Probe dt node for Exynos542x SoC
ARM: dts: exynos: Add support of bus frequency for exynos4412-trats/odroidu3
ARM: dts: exynos: Expand the voltage range of buck1/3 regulator for exynos4412-odroidu3
ARM: dts: exynos: Add support of bus frequency using VDD_INT for exynos3250-rinato
ARM: dts: exynos: Add exynos4412-ppmu-common dtsi to delete duplicate PPMU nodes
ARM: dts: exynos: Add bus nodes using VDD_MIF for Exynos4210
ARM: dts: exynos: Add bus nodes using VDD_INT for Exynos4x12
ARM: dts: exynos: Add bus nodes using VDD_MIF for Exynos4x12
ARM: dts: exynos: Add bus nodes using VDD_INT for Exynos3250
ARM: dts: exynos: Add DMC bus frequency for exynos3250-rinato/monk
ARM: dts: exynos: Add DMC bus node for Exynos3250
ARM: tegra: Enable XUSB on Nyan
ARM: tegra: Enable XUSB on Jetson TK1
ARM: tegra: Enable XUSB on Venice2
ARM: tegra: Add Tegra124 XUSB controller
ARM: tegra: Move Tegra124 to the new XUSB pad controller binding
ARM: dts: r8a7794: Use SYSC "always-on" PM Domain
ARM: dts: r8a7793: Use SYSC "always-on" PM Domain
...
I have only one patch for asm-generic in this release, this one is from
James Hogan and updates the generic system call table for renameat2
so we don't need to provide both renameat and renameat2 in newly
added architectures.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=ae81
-----END PGP SIGNATURE-----
Merge tag 'asm-generic-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic cleanup from Arnd Bergmann:
"I have only one patch for asm-generic in this release, this one is
from James Hogan and updates the generic system call table for
renameat2 so we don't need to provide both renameat and renameat2 in
newly added architectures"
* tag 'asm-generic-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
asm-generic: Drop renameat syscall from default list
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=k6RP
-----END PGP SIGNATURE-----
Merge tag 'nfsd-4.7' of git://linux-nfs.org/~bfields/linux
Pull nfsd updates from Bruce Fields:
"A very quiet cycle for nfsd, mainly just an RDMA update from Chuck
Lever"
* tag 'nfsd-4.7' of git://linux-nfs.org/~bfields/linux:
sunrpc: fix stripping of padded MIC tokens
svcrpc: autoload rdma module
svcrdma: Generalize svc_rdma_xdr_decode_req()
svcrdma: Eliminate code duplication in svc_rdma_recvfrom()
svcrdma: Drain QP before freeing svcrdma_xprt
svcrdma: Post Receives only for forward channel requests
svcrdma: Remove superfluous line from rdma_read_chunks()
svcrdma: svc_rdma_put_context() is invoked twice in Send error path
svcrdma: Do not add XDR padding to xdr_buf page vector
svcrdma: Support IPv6 with NFS/RDMA
nfsd: handle seqid wraparound in nfsd4_preprocess_layout_stateid
Remove unnecessary allocation
after a crash and a potential BUG_ON crash if a file has the data
journalling flag enabled while it has dirty delayed allocation blocks
that haven't been written yet. Also fix a potential crash in the new
project quota code and a maliciously corrupted file system.
In addition, fix some DAX-specific bugs, including when there is a
transient ENOSPC situation and races between writes via direct I/O and
an mmap'ed segment that could lead to lost I/O.
Finally the usual set of miscellaneous cleanups.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
iQEcBAABCAAGBQJXQ40fAAoJEPL5WVaVDYGjnwMH+wXHASgPfzZgtRInsTG8W/2L
jsmAcMlyMAYIATWMppNtPIq0td49z1dYO0YkKhtPVMwfzu230IFWhGWp93WqP9ve
XYHMmaBorFlMAzWgMKn1K0ExWZlV+ammmcTKgU0kU4qyZp0G/NnMtlXIkSNv2amI
9Mn6R+v97c20gn8e9HWP/IVWkgPr+WBtEXaSGjC7dL6yI8hL+rJMqN82D76oU5ea
vtwzrna/ISijy+etYmQzqHNYNaBKf40+B5HxQZw/Ta3FSHofBwXAyLaeEAr260Mf
V3Eg2NDcKQxiZ3adBzIUvrRnrJV381OmHoguo8Frs8YHTTRiZ0T/s7FGr2Q0NYE=
=7yIM
-----END PGP SIGNATURE-----
Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o:
"Fix a number of bugs, most notably a potential stale data exposure
after a crash and a potential BUG_ON crash if a file has the data
journalling flag enabled while it has dirty delayed allocation blocks
that haven't been written yet. Also fix a potential crash in the new
project quota code and a maliciously corrupted file system.
In addition, fix some DAX-specific bugs, including when there is a
transient ENOSPC situation and races between writes via direct I/O and
an mmap'ed segment that could lead to lost I/O.
Finally the usual set of miscellaneous cleanups"
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (23 commits)
ext4: pre-zero allocated blocks for DAX IO
ext4: refactor direct IO code
ext4: fix race in transient ENOSPC detection
ext4: handle transient ENOSPC properly for DAX
dax: call get_blocks() with create == 1 for write faults to unwritten extents
ext4: remove unmeetable inconsisteny check from ext4_find_extent()
jbd2: remove excess descriptions for handle_s
ext4: remove unnecessary bio get/put
ext4: silence UBSAN in ext4_mb_init()
ext4: address UBSAN warning in mb_find_order_for_block()
ext4: fix oops on corrupted filesystem
ext4: fix check of dqget() return value in ext4_ioctl_setproject()
ext4: clean up error handling when orphan list is corrupted
ext4: fix hang when processing corrupted orphaned inode list
ext4: remove trailing \n from ext4_warning/ext4_error calls
ext4: fix races between changing inode journal mode and ext4_writepages
ext4: handle unwritten or delalloc buffers before enabling data journaling
ext4: fix jbd2 handle extension in ext4_ext_truncate_extend_restart()
ext4: do not ask jbd2 to write data for delalloc buffers
jbd2: add support for avoiding data writes during transaction commits
...
With the change to sparse IRQs, the lpc32xx platform gets a warning about
conflicting macros:
In file included from arch/arm/mach-lpc32xx/irq.c:31:0:
arch/arm/mach-lpc32xx/include/mach/irqs.h:115:0: warning: "NR_IRQS" redefined
#define NR_IRQS 96
arch/arm/include/asm/irq.h:9:0: note: this is the location of the previous definition
#define NR_IRQS NR_IRQS_LEGACY
One such instance was in the old irq driver that is now removed by
the previous patch, but any other file including mach/irqs.h still
has the issue. Since none of them use this constant, we can just
remove the old definition.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 8cb17b5ed0 ("irqchip: Add LPC32xx interrupt controller driver")
New NXP LPC32xx irq chip driver is used instead of a legacy one.
[this also fixes a harmless build warning about the NR_IRQS redefinition]
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Acked-by: Sylvain Lemieux <slemieux.tyco@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Another quiet release for SPI, almost entirely driver specific changes
with the diffstat dominated by two new drivers which are about two
thirds of it in terms of lines of code:
- New drivers for PIC32 standard and SQI controllers.
- The Cadence driver has had runtime PM support added and quite a few
fixes and cleanups.
- The flash-specific accelerated path support now has a feature query
interface.
- The pxa2xx driver has been moved to use the core DMA mapping support.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABAgAGBQJXQufEAAoJECTWi3JdVIfQXeEH/3PZVHvwQBqpN6S0AunlJQoM
s1bScKYeH2ukx9iw86M/upSCOVt4TGlPrdwzcYCUYll9IJuO/ChDio7PoVlxQeJB
kYUrFi6dzE/bCNzWtrGtyvNlSDsrRccbRBhmKTFQ9DokcJHgzdzhuCuXUR6OKDDw
CxlvDrLwapzOpHIncrhh6dvv1NoZgusOTMzVQAPvLbuiH9WpdnD9MjySklIqd0XU
bp+J4J5+jyBVykOZ2MdYpXf1dRhg0c0kmKXOKuX9woiJhvBFrtZX2GfCw1MXchKZ
/obHOyD7ff+MBCY2nFN95s3rl9Vxn8IAfNWsuQvZaFK0nz1bypaQ6aXIbXXgj/8=
=QO1T
-----END PGP SIGNATURE-----
Merge tag 'spi-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"Another quiet release for SPI, almost entirely driver specific changes
with the diffstat dominated by two new drivers which are about two
thirds of it in terms of lines of code:
- new drivers for PIC32 standard and SQI controllers
- the Cadence driver has had runtime PM support added and quite a few
fixes and cleanups
- flash-specific accelerated path support now has a feature query
interface
- the pxa2xx driver has been moved to use the core DMA mapping support"
* tag 'spi-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (48 commits)
spi: pic32-sqi: Fix linker error, undefined reference to `bad_dma_ops'
spi: dw-pci: Spelling s/paltforms/platforms/g
spi: pic32-sqi: Remove pic32_sqi_setup and pic32_sqi_cleanup
spi: Fix simple typo s/impelment/implement
spi: rockchip: potential NULL dereference on error
spi: zynqmp: disable clocks in error paths
spi: Drop unnecessary dependencies on relaxed I/O accessors
spi: qup: Add spi_master_put in remove function
spi: qup: Handle clocks in pm_runtime suspend and resume
spi: st-ssc4: Fix missing spi_master_put in spi_st_probe error paths
spi: st-ssc4: Allow compile test build
spi: omap2-mcspi: Use dma_request_chan() for requesting DMA channel
spi: davinci: Use dma_request_chan() for requesting DMA channel
spi: pic32: Fix checking return value of devm_ioremap_resource
spi: spi-fsl-dspi: Update DT binding documentation
spi: Drop duplicate code to set master->dev.parent
spi: pic32: Set proper bits_per_word_mask
spi: return error if kmap'd buffers passed to spi_map_buf()
spi: core: add hook flash_read_supported to spi_master
spi: pic32-sqi: silence array overflow warning
...
