This node pointer is returned by of_find_compatible_node() with
refcount incremented in this function. of_node_put() on it before
exitting this function.
This is detected by Coccinelle semantic patch.
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
If the copy_to_user() fails we should unlock and return directly without
updating "cnt". Also the return value should be -EFAULT instead of the
number of bytes remaining.
Fixes: 02b23803c6 ("staging: android: ion: Add ioctl to query available heaps")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* atlas chemical
- Fix alignment of big endian values in a larger storage (by using the right
size storage)
* maxim thermocouple
- Fix alignment of big endian values in larger (by using the correct
sized storage).
* sca3000
- Handle unexpected mode values.
* ti-adc081
- Select IIO_TRIGGERED_BUFFER to avoid build errors
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Merge tag 'iio-fixes-for-4.9a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus
Jonathan writes:
First set of IIO fixes for the 4.9 cycle.
* atlas chemical
- Fix alignment of big endian values in a larger storage (by using the right
size storage)
* maxim thermocouple
- Fix alignment of big endian values in larger (by using the correct
sized storage).
* sca3000
- Handle unexpected mode values.
* ti-adc081
- Select IIO_TRIGGERED_BUFFER to avoid build errors
The newly added __sca3000_get_base_freq function handles all valid
modes of the SCA3000_REG_ADDR_MODE register, but gcc notices
that any other value (i.e. 0x00) causes the base_freq variable to
not get initialized:
drivers/staging/iio/accel/sca3000_core.c: In function 'sca3000_write_raw':
drivers/staging/iio/accel/sca3000_core.c:527:23: error: 'base_freq' may be used uninitialized in this function [-Werror=maybe-uninitialized]
This adds explicit error handling for unexpected register values,
to ensure this cannot happen.
Fixes: e0f3fc9b47 ("iio: accel: sca3000_core: implemented IIO_CHAN_INFO_SAMP_FREQ")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Ico Doornekamp <ico@pruts.nl>
Cc: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This will result in a random value being reported on big endian architectures.
(thanks to Lars-Peter Clausen for pointing out the effects of this bug)
Only effects a value printed to the log, but as this reports the settings of
the probe in question it may be of direct interest to users.
Also, fixes the following sparse endianness warnings:
drivers/iio/chemical/atlas-ph-sensor.c:215:9: warning: cast to restricted __be16
drivers/iio/chemical/atlas-ph-sensor.c:215:9: warning: cast to restricted __be16
drivers/iio/chemical/atlas-ph-sensor.c:215:9: warning: cast to restricted __be16
drivers/iio/chemical/atlas-ph-sensor.c:215:9: warning: cast to restricted __be16
drivers/iio/chemical/atlas-ph-sensor.c:215:9: warning: cast to restricted __be16
drivers/iio/chemical/atlas-ph-sensor.c:215:9: warning: cast to restricted __be16
drivers/iio/chemical/atlas-ph-sensor.c:215:9: warning: cast to restricted __be16
drivers/iio/chemical/atlas-ph-sensor.c:215:9: warning: cast to restricted __be16
Signed-off-by: Sandhya Bankar <bankarsandhya512@gmail.com>
Fixes: e8dd92bfbf ("iio: chemical: atlas-ph-sensor: add EC feature")
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
It's multiple values per file, so it has no business being in sysfs,
besides it was assuming seqfile anyway.
Fixes: d806f30e63 ("staging: lustre: osc: revise unstable pages accounting")
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit 2518ac59eb ("staging: wilc1000: Replace kthread with workqueue
for host interface") adds an unconditional destroy_workqueue() on the
wilc's "hif_workqueue" soon after its creation thereby rendering
it unusable. It then further attempts to queue work onto this
non-existing hif_worqueue and results in:
Unable to handle kernel NULL pointer dereference at virtual address 00000010
pgd = de478000
[00000010] *pgd=3eec0831, *pte=00000000, *ppte=00000000
Internal error: Oops: 17 [#1] ARM
Modules linked in: wilc1000_sdio(C) wilc1000(C)
CPU: 0 PID: 825 Comm: ifconfig Tainted: G C 4.8.0-rc8+ #37
Hardware name: Atmel SAMA5
task: df56f800 task.stack: deeb0000
PC is at __queue_work+0x90/0x284
LR is at __queue_work+0x58/0x284
pc : [<c0126bb0>] lr : [<c0126b78>] psr: 600f0093
sp : deeb1aa0 ip : def22d78 fp : deea6000
r10: 00000000 r9 : c0a08150 r8 : c0a2f058
r7 : 00000001 r6 : dee9b600 r5 : def22d74 r4 : 00000000
r3 : 00000000 r2 : def22d74 r1 : 07ffffff r0 : 00000000
Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment none
...
[<c0127060>] (__queue_work) from [<c0127298>] (queue_work_on+0x34/0x40)
[<c0127298>] (queue_work_on) from [<bf0076b4>] (wilc_enqueue_cmd+0x54/0x64 [wilc1000])
[<bf0076b4>] (wilc_enqueue_cmd [wilc1000]) from [<bf0082b4>] (wilc_set_wfi_drv_handler+0x48/0x70 [wilc1000])
[<bf0082b4>] (wilc_set_wfi_drv_handler [wilc1000]) from [<bf00509c>] (wilc_mac_open+0x214/0x250 [wilc1000])
[<bf00509c>] (wilc_mac_open [wilc1000]) from [<c04fde98>] (__dev_open+0xb8/0x11c)
[<c04fde98>] (__dev_open) from [<c04fe128>] (__dev_change_flags+0x94/0x158)
[<c04fe128>] (__dev_change_flags) from [<c04fe204>] (dev_change_flags+0x18/0x48)
[<c04fe204>] (dev_change_flags) from [<c0557d5c>] (devinet_ioctl+0x6b4/0x788)
[<c0557d5c>] (devinet_ioctl) from [<c04e40a0>] (sock_ioctl+0x154/0x2cc)
[<c04e40a0>] (sock_ioctl) from [<c01b16e0>] (do_vfs_ioctl+0x9c/0x878)
[<c01b16e0>] (do_vfs_ioctl) from [<c01b1ef0>] (SyS_ioctl+0x34/0x5c)
[<c01b1ef0>] (SyS_ioctl) from [<c0107520>] (ret_fast_syscall+0x0/0x3c)
Code: e5932004 e1520006 01a04003 0affffff (e5943010)
---[ end trace b612328adaa6bf20 ]---
This fix removes the unnecessary call to destroy_workqueue() while opening
the device to avoid the above kernel panic. The deinit routine already
does a good job of terminating the workqueue when no longer needed.
Reported-by: Nicolas Ferre <Nicolas.Ferre@microchip.com>
Fixes: 2518ac59eb ("staging: wilc1000: Replace kthread with workqueue for host interface")
Cc: stable@vger.kernel.org # 4.8+
Signed-off-by: Aditya Shankar <Aditya.Shankar@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We're testing "pdev" but we intended to test "heap_pdev". This is a
static checker fix and it's unlikely that anyone is affected by this
bug.
Fixes: 13439479c7 ('staging: ion: Add files for parsing the devicetree')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Some of the print messages are using the incorrect device pointer, fix
them.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Some of the print messages are using the incorrect device pointer, fix
them.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'befs-v4.9-rc1' of git://github.com/luisbg/linux-befs
Pull befs fixes from Luis de Bethencourt:
"I recently took maintainership of the befs file system [0]. This is
the first time I send you a git pull request, so please let me know if
all the below is OK.
Salah Triki and myself have been cleaning the code and fixing a few
small bugs.
Sorry I couldn't send this sooner in the merge window, I was waiting
to have my GPG key signed by kernel members at ELCE in Berlin a few
days ago."
[0] https://lkml.org/lkml/2016/7/27/502
* tag 'befs-v4.9-rc1' of git://github.com/luisbg/linux-befs: (39 commits)
befs: befs: fix style issues in datastream.c
befs: improve documentation in datastream.c
befs: fix typos in datastream.c
befs: fix typos in btree.c
befs: fix style issues in super.c
befs: fix comment style
befs: add check for ag_shift in superblock
befs: dump inode_size superblock information
befs: remove unnecessary initialization
befs: fix typo in befs_sb_info
befs: add flags field to validate superblock state
befs: fix typo in befs_find_key
befs: remove unused BEFS_BT_PARMATCH
fs: befs: remove ret variable
fs: befs: remove in vain variable assignment
fs: befs: remove unnecessary *befs_sb variable
fs: befs: remove useless initialization to zero
fs: befs: remove in vain variable assignment
fs: befs: Insert NULL inode to dentry
fs: befs: Remove useless calls to brelse in befs_find_brun_dblindirect
...
extract as much possible uncertainty from a running system at boot time as
possible, hoping to capitalize on any possible variation in CPU operation
(due to runtime data differences, hardware differences, SMP ordering,
thermal timing variation, cache behavior, etc).
At the very least, this plugin is a much more comprehensive example for
how to manipulate kernel code using the gcc plugin internals.
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Merge tag 'gcc-plugins-v4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull gcc plugins update from Kees Cook:
"This adds a new gcc plugin named "latent_entropy". It is designed to
extract as much possible uncertainty from a running system at boot
time as possible, hoping to capitalize on any possible variation in
CPU operation (due to runtime data differences, hardware differences,
SMP ordering, thermal timing variation, cache behavior, etc).
At the very least, this plugin is a much more comprehensive example
for how to manipulate kernel code using the gcc plugin internals"
* tag 'gcc-plugins-v4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
latent_entropy: Mark functions with __latent_entropy
gcc-plugins: Add latent_entropy plugin
Pull MIPS updates from Ralf Baechle:
"This is the main MIPS pull request for 4.9:
MIPS core arch code:
- traps: 64bit kernels should read CP0_EBase 64bit
- traps: Convert ebase to KSEG0
- c-r4k: Drop bc_wback_inv() from icache flush
- c-r4k: Split user/kernel flush_icache_range()
- cacheflush: Use __flush_icache_user_range()
- uprobes: Flush icache via kernel address
- KVM: Use __local_flush_icache_user_range()
- c-r4k: Fix flush_icache_range() for EVA
- Fix -mabi=64 build of vdso.lds
- VDSO: Drop duplicated -I*/-E* aflags
- tracing: move insn_has_delay_slot to a shared header
- tracing: disable uprobe/kprobe on compact branch instructions
- ptrace: Fix regs_return_value for kernel context
- Squash lines for simple wrapper functions
- Move identification of VP(E) into proc.c from smp-mt.c
- Add definitions of SYNC barrierstype values
- traps: Ensure full EBase is written
- tlb-r4k: If there are wired entries, don't use TLBINVF
- Sanitise coherentio semantics
- dma-default: Don't check hw_coherentio if device is non-coherent
- Support per-device DMA coherence
- Adjust MIPS64 CAC_BASE to reflect Config.K0
- Support generating Flattened Image Trees (.itb)
- generic: Introduce generic DT-based board support
- generic: Convert SEAD-3 to a generic board
- Enable hardened usercopy
- Don't specify STACKPROTECTOR in defconfigs
Octeon:
- Delete dead code and files across the platform.
- Change to use all memory into use by default.
- Rename upper case variables in setup code to lowercase.
- Delete legacy hack for broken bootloaders.
- Leave maintaining the link state to the actual ethernet/PHY drivers.
- Add DTS for D-Link DSR-500N.
- Fix PCI interrupt routing on D-Link DSR-500N.
Pistachio:
- Remove ANDROID_TIMED_OUTPUT from defconfig
TX39xx:
- Move GPIO setup from .mem_setup() to .arch_init()
- Convert to Common Clock Framework
TX49xx:
- Move GPIO setup from .mem_setup() to .arch_init()
- Convert to Common Clock Framework
txx9wdt:
- Add missing clock (un)prepare calls for CCF
BMIPS:
- Add PW, GPIO SDHCI and NAND device node names
- Support APPENDED_DTB
- Add missing bcm97435svmb to DT_NONE
- Rename bcm96358nb4ser to bcm6358-neufbox4-sercom
- Add DT examples for BCM63268, BCM3368 and BCM6362
- Add support for BCM3368 and BCM6362
PCI
- Reduce stack frame usage
- Use struct list_head lists
- Support for CONFIG_PCI_DOMAINS_GENERIC
- Make pcibios_set_cache_line_size an initcall
- Inline pcibios_assign_all_busses
- Split pci.c into pci.c & pci-legacy.c
- Introduce CONFIG_PCI_DRIVERS_LEGACY
- Support generic drivers
CPC
- Convert bare 'unsigned' to 'unsigned int'
- Avoid lock when MIPS CM >= 3 is present
GIC:
- Delete unused file smp-gic.c
mt7620:
- Delete unnecessary assignment for the field "owner" from PCI
BCM63xx:
- Let clk_disable() return immediately if clk is NULL
pm-cps:
- Change FSB workaround to CPU blacklist
- Update comments on barrier instructions
- Use MIPS standard lightweight ordering barrier
- Use MIPS standard completion barrier
- Remove selection of sync types
- Add MIPSr6 CPU support
- Support CM3 changes to Coherence Enable Register
SMP:
- Wrap call to mips_cpc_lock_other in mips_cm_lock_other
- Introduce mechanism for freeing and allocating IPIs
cpuidle:
- cpuidle-cps: Enable use with MIPSr6 CPUs.
SEAD3:
- Rewrite to use DT and generic kernel feature.
USB:
- host: ehci-sead3: Remove SEAD-3 EHCI code
FBDEV:
- cobalt_lcdfb: Drop SEAD3 support
dt-bindings:
- Document a binding for simple ASCII LCDs
auxdisplay:
- img-ascii-lcd: driver for simple ASCII LCD displays
irqchip i8259:
- i8259: Add domain before mapping parent irq
- i8259: Allow platforms to override poll function
- i8259: Remove unused i8259A_irq_pending
Malta:
- Rewrite to use DT
of/platform:
- Probe "isa" busses by default
CM:
- Print CM error reports upon bus errors
Module:
- Migrate exception table users off module.h and onto extable.h
- Make various drivers explicitly non-modular:
- Audit and remove any unnecessary uses of module.h
mailmap:
- Canonicalize to Qais' current email address.
Documentation:
- MIPS supports HAVE_REGS_AND_STACK_ACCESS_API
Loongson1C:
- Add CPU support for Loongson1C
- Add board support
- Add defconfig
- Add RTC support for Loongson1C board
All this except one Documentation fix has sat in linux-next and has
survived Imagination's automated build test system"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (127 commits)
Documentation: MIPS supports HAVE_REGS_AND_STACK_ACCESS_API
MIPS: ptrace: Fix regs_return_value for kernel context
MIPS: VDSO: Drop duplicated -I*/-E* aflags
MIPS: Fix -mabi=64 build of vdso.lds
MIPS: Enable hardened usercopy
MIPS: generic: Convert SEAD-3 to a generic board
MIPS: generic: Introduce generic DT-based board support
MIPS: Support generating Flattened Image Trees (.itb)
MIPS: Adjust MIPS64 CAC_BASE to reflect Config.K0
MIPS: Print CM error reports upon bus errors
MIPS: Support per-device DMA coherence
MIPS: dma-default: Don't check hw_coherentio if device is non-coherent
MIPS: Sanitise coherentio semantics
MIPS: PCI: Support generic drivers
MIPS: PCI: Introduce CONFIG_PCI_DRIVERS_LEGACY
MIPS: PCI: Split pci.c into pci.c & pci-legacy.c
MIPS: PCI: Inline pcibios_assign_all_busses
MIPS: PCI: Make pcibios_set_cache_line_size an initcall
MIPS: PCI: Support for CONFIG_PCI_DOMAINS_GENERIC
MIPS: PCI: Use struct list_head lists
...
Just a few trivial small fixes.
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Merge tag 'sound-fix-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Just a few trivial small fixes"
* tag 'sound-fix-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: line6: fix a crash in line6_hwdep_write()
ALSA: seq: fix passing wrong pointer in function call of compatibility layer
ALSA: hda - Fix a failure of micmute led when having multi adcs
ALSA: line6: Fix POD X3 Live audio input
Pull more misc uaccess and vfs updates from Al Viro:
"The rest of the stuff from -next (more uaccess work) + assorted fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
score: traps: Add missing include file to fix build error
fs/super.c: don't fool lockdep in freeze_super() and thaw_super() paths
fs/super.c: fix race between freeze_super() and thaw_super()
overlayfs: Fix setting IOP_XATTR flag
iov_iter: kernel-doc import_iovec() and rw_copy_check_uvector()
blackfin: no access_ok() for __copy_{to,from}_user()
arm64: don't zero in __copy_from_user{,_inatomic}
arm: don't zero in __copy_from_user_inatomic()/__copy_from_user()
arc: don't leak bits of kernel stack into coredump
alpha: get rid of tail-zeroing in __copy_user()
Pull cifs fixes from Steve French:
"Including:
- nine bug fixes for stable. Some of these we found at the recent two
weeks of SMB3 test events/plugfests.
- significant improvements in reconnection (e.g. if server or network
crashes) especially when mounted with "persistenthandles" or to
server which advertises Continuous Availability on the share.
- a new mount option "idsfromsid" which improves POSIX compatibility
in some cases (when winbind not configured e.g.) by better (and
faster) fetching uid/gid from acl (when "cifsacl" mount option is
enabled). NB: we are almost complete work on "cifsacl" (querying
mode/uid/gid from ACL) for SMB3, but SMB3 support for cifsacl is
not included in this set.
- improved handling for SMB3 "credits" (even if server is buggy)
Still working on two sets of changes:
- cifsacl enablement for SMB3
- cleanup of RFC1001 length calculation (so we can handle encryption
and multichannel and RDMA)
And a couple of new bugs were reported recently (unrelated to above)
so will probably have another merge request next week"
* 'for-next' of git://git.samba.org/sfrench/cifs-2.6: (21 commits)
CIFS: Retrieve uid and gid from special sid if enabled
CIFS: Add new mount option to set owner uid and gid from special sids in acl
CIFS: Reset read oplock to NONE if we have mandatory locks after reopen
CIFS: Fix persistent handles re-opening on reconnect
SMB2: Separate RawNTLMSSP authentication from SMB2_sess_setup
SMB2: Separate Kerberos authentication from SMB2_sess_setup
Expose cifs module parameters in sysfs
Cleanup missing frees on some ioctls
Enable previous version support
Do not send SMB3 SET_INFO request if nothing is changing
SMB3: Add mount parameter to allow user to override max credits
fs/cifs: reopen persistent handles on reconnect
Clarify locking of cifs file and tcon structures and make more granular
Fix regression which breaks DFS mounting
fs/cifs: keep guid when assigning fid to fileinfo
SMB3: GUIDs should be constructed as random but valid uuids
Set previous session id correctly on SMB3 reconnect
cifs: Limit the overall credit acquired
Display number of credits available
Add way to query creation time of file via cifs xattr
...
Pull btrfs fixes from Chris Mason:
"Some fixes from Omar and Dave Sterba for our new free space tree.
This isn't heavily used yet, but as we move toward making it the new
default we wanted to nail down an endian bug"
* 'for-linus-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
btrfs: tests: uninline member definitions in free_space_extent
btrfs: tests: constify free space extent specs
Btrfs: expand free space tree sanity tests to catch endianness bug
Btrfs: fix extent buffer bitmap tests on big-endian systems
Btrfs: catch invalid free space trees
Btrfs: fix mount -o clear_cache,space_cache=v2
Btrfs: fix free space tree bitmaps on big-endian systems
score images fail to build as follows.
arch/score/kernel/traps.c: In function 'show_stack':
arch/score/kernel/traps.c:55:3: error:
implicit declaration of function '__get_user'
__get_user() is declared in asm/uaccess.h, which was previously included
through asm/module.h.
Cc: Al Viro <viro@zeniv.linux.org.uk>
Fixes: 88dd4a748d ("score: separate extable.h, switch module.h to it")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
sb_wait_write()->percpu_rwsem_release() fools lockdep to avoid the
false-positives. Now that xfs was fixed by Dave's commit dbad7c9930
("xfs: stop holding ILOCK over filldir callbacks") we can remove it and
change freeze_super() and thaw_super() to run with s_writers.rw_sem locks
held; we add two trivial helpers for that, lockdep_sb_freeze_release()
and lockdep_sb_freeze_acquire().
xfstests-dev/check `grep -il freeze tests/*/???` does not trigger any
warning from lockdep.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Pull overlayfs updates from Miklos Szeredi:
"This update contains fixes to the "use mounter's permission to access
underlying layers" area, and miscellaneous other fixes and cleanups.
No new features this time"
* 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: use vfs_get_link()
vfs: add vfs_get_link() helper
ovl: use generic_readlink
ovl: explain error values when removing acl from workdir
ovl: Fix info leak in ovl_lookup_temp()
ovl: during copy up, switch to mounter's creds early
ovl: lookup: do getxattr with mounter's permission
ovl: copy_up_xattr(): use strnlen
Change thaw_super() to check frozen != SB_FREEZE_COMPLETE rather than
frozen == SB_UNFROZEN, otherwise it can race with freeze_super() which
drops sb->s_umount after SB_FREEZE_WRITE to preserve the lock ordering.
In this case thaw_super() will wrongly call s_op->unfreeze_fs() before
it was actually frozen, and call sb_freeze_unlock() which leads to the
unbalanced percpu_up_write(). Unfortunately lockdep can't detect this,
so this triggers misc BUG_ON()'s in kernel/rcu/sync.c.
Reported-and-tested-by: Nikolay Borisov <kernel@kyup.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
ovl_fill_super calls ovl_new_inode to create a root inode for the new
superblock before initializing sb->s_xattr. This wrongly causes
IOP_XATTR to be cleared in i_opflags of the new inode, causing SELinux
to log the following message:
SELinux: (dev overlay, type overlay) has no xattr support
Fix this by initializing sb->s_xattr and similar fields before calling
ovl_new_inode.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Both import_iovec() and rw_copy_check_uvector() take an array
(typically small and on-stack) which is used to hold an iovec array copy
from userspace. This is to avoid an expensive memory allocation in the
fast path (i.e. few iovec elements).
The caller may have to check whether these functions actually used
the provided buffer or allocated a new one -- but this differs between
the too. Let's just add a kernel doc to clarify what the semantics are
for each function.
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This update consists of:
- Fixes and improvements to existing tests
- Moving code from Documentation to selftests, samples, and tools.
Moves dnotify_test, prctl, ptp, vDSO, ia64, watchdog, and networking
tests from Documentation to selftests.
Moves mic/mpssd, misc-devices/mei, timers, watchdog, auxdisplay, and
blackfin examples from Documentation to samples.
Moves accounting, laptops/dslm, and pcmcia/crc32hash tools from
Documentation to tools.
Deletes BUILD_DOCSRC and its dependencies.
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Merge tag 'linux-kselftest-4.9-rc1-update' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest updates from Shuah Khan:
"This update consists of:
- Fixes and improvements to existing tests
- Moving code from Documentation to selftests, samples, and tools:
* Moves dnotify_test, prctl, ptp, vDSO, ia64, watchdog, and
networking tests from Documentation to selftests.
* Moves mic/mpssd, misc-devices/mei, timers, watchdog, auxdisplay,
and blackfin examples from Documentation to samples.
* Moves accounting, laptops/dslm, and pcmcia/crc32hash tools from
Documentation to tools.
* Deletes BUILD_DOCSRC and its dependencies"
* tag 'linux-kselftest-4.9-rc1-update' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (21 commits)
selftests/futex: Check ANSI terminal color support
Doc: update 00-INDEX files to reflect the runnable code move
samples: move blackfin gptimers-example from Documentation
tools: move pcmcia crc32hash tool from Documentation
tools: move laptops dslm tool from Documentation
tools: move accounting tool from Documentation
samples: move auxdisplay example code from Documentation
samples: move watchdog example code from Documentation
samples: move timers example code from Documentation
samples: move misc-devices/mei example code from Documentation
samples: move mic/mpssd example code from Documentation
selftests: Move networking/timestamping from Documentation
selftests: move watchdog tests from Documentation/watchdog
selftests: move ia64 tests from Documentation/ia64
selftests: move vDSO tests from Documentation/vDSO
selftests: move ptp tests from Documentation/ptp
selftests: move prctl tests from Documentation/prctl
selftests: move dnotify_test from Documentation/filesystems
selftests/timers: Add missing error code assignment before test
selftests/zram: replace ZRAM_LZ4_COMPRESS
...
Pull misc kbuild changes from Michal Marek:
"Just a few patches on the kbuild.git#misc branch this time:
- New Coccinelle patch by Nicholas Mc Guire
- Existing patch fixes by Julia Lawall
- Minor comment fix by Markus Elfring"
* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
Coccinelle: flag conditions with no effect
scripts/coccicheck: Update reference for the corresponding documentation
Coccinelle: pm_runtime: ensure relevance of pm_runtime reports
Coccinelle: limit memdup_user transformation to GFP_KERNEL case
Pull kbuild updates from Michal Marek:
- EXPORT_SYMBOL for asm source by Al Viro.
This does bring a regression, because genksyms no longer generates
checksums for these symbols (CONFIG_MODVERSIONS). Nick Piggin is
working on a patch to fix this.
Plus, we are talking about functions like strcpy(), which rarely
change prototypes.
- Fixes for PPC fallout of the above by Stephen Rothwell and Nick
Piggin
- fixdep speedup by Alexey Dobriyan.
- preparatory work by Nick Piggin to allow architectures to build with
-ffunction-sections, -fdata-sections and --gc-sections
- CONFIG_THIN_ARCHIVES support by Stephen Rothwell
- fix for filenames with colons in the initramfs source by me.
* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: (22 commits)
initramfs: Escape colons in depfile
ppc: there is no clear_pages to export
powerpc/64: whitelist unresolved modversions CRCs
kbuild: -ffunction-sections fix for archs with conflicting sections
kbuild: add arch specific post-link Makefile
kbuild: allow archs to select link dead code/data elimination
kbuild: allow architectures to use thin archives instead of ld -r
kbuild: Regenerate genksyms lexer
kbuild: genksyms fix for typeof handling
fixdep: faster CONFIG_ search
ia64: move exports to definitions
sparc32: debride memcpy.S a bit
[sparc] unify 32bit and 64bit string.h
sparc: move exports to definitions
ppc: move exports to definitions
arm: move exports to definitions
s390: move exports to definitions
m68k: move exports to definitions
alpha: move exports to actual definitions
x86: move exports to actual definitions
...
Only 32 more to go...
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Merge tag 'docs-4.9-2' of git://git.lwn.net/linux
Pull one more documentation update from Jonathan Corbet:
"A single commit converting the mac80211 DocBook template over to
Sphinx. Only 32 more to go..."
* tag 'docs-4.9-2' of git://git.lwn.net/linux:
docs-rst: sphinxify 802.11 documentation
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull rdma qedr RoCE driver from Doug Ledford:
"Early on in the merge window I mentioned I had a backlog of new
drivers waiting to be reviewed and that, in addition to the hns-roce
driver, I wanted to get possible a couple more reviewed. I ended up
only having the time to complete one of the additional drivers.
During Dave Miller's pull request this go around, there were a series
of 9 patches to the QLogic qed net driver that add basic support for a
paired RoCE driver. That support is currently not functional because
it is missing the matching RoCE driver in the RDMA subsystem. I
managed to finish that review. However, because it goes against part
of Dave's net pull, and a part that was accepted a day or two after
the merge window opened, to apply cleanly it has to be applied to
either the tip of Dave's net branch, or as I did in this case, I just
applied it to your master after you had taken Dave's pull request."
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma:
qedr: Add events support and register IB device
qedr: Add GSI support
qedr: Add LL2 RoCE interface
qedr: Add support for data path
qedr: Add support for memory registeration verbs
qedr: Add support for QP verbs
qedr: Add support for PD,PKEY and CQ verbs
qedr: Add support for user context verbs
qedr: Add support for RoCE HW init
qedr: Add RoCE driver framework
- Small patch set for hns net driver that the roce patches depend on
- Various fixes to the hns-roce driver
- Add connection manager support to the hns-roce driver
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Merge tag 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull more rdma updates from Doug Ledford:
"This merge window was the first where Huawei had to try and coordinate
their patches between their net driver and their new roce driver
(similar to mlx4 and mlx5).
They didn't do horribly, but there were some issues (and we knew that
because they simply didn't know what to do in the beginning). As a
result, I had a set of patches that depended on some patches that
normally would have come to you via Dave's tree. Those patches have
been on netdev@ for a while, so I got Dave to give me his approval to
send them to you. As such, the other 29 patches I had behind them are
also now ready to go.
This catches the hns and hns-roce drivers up to current, and for
future patches we are working with them to get them up to speed on how
to do joint driver development so that they don't have these sorts of
cross tree dependency issues again. BTW, Dave gave me permission to
add his Acked-by: to the patches against the net tree, but I've had
this branch through 0day (but not linux-next since it was off by
itself) and I didn't want to rebase the series just to add Dave's ack
for the 8 patches in the net area.
Updates to the hns drivers:
- Small patch set for hns net driver that the roce patches depend on
- Various fixes to the hns-roce driver
- Add connection manager support to the hns-roce driver"
* tag 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (36 commits)
IB/hns: Fix for removal of redundant code
IB/hns: Delete the redundant lines in hns_roce_v1_m_qp()
IB/hns: Fix the bug when platform_get_resource() exec fail
IB/hns: Update the rq head when modify qp state
IB/hns: Cq has not been freed
IB/hns: Validate mtu when modified qp
IB/hns: Some items of qpc need to take user param
IB/hns: The Ack timeout need a lower limit value
IB/hns: Return bad wr while post send failed
IB/hns: Fix bug of memory leakage for registering user mr
IB/hns: Modify the init of iboe lock
IB/hns: Optimize code of aeq and ceq interrupt handle and fix the bug of qpn
IB/hns: Delete the sqp_start from the structure hns_roce_caps
IB/hns: Fix bug of clear hem
IB/hns: Remove unused parameter named qp_type
IB/hns: Simplify function of pd alloc and qp alloc
IB/hns: Fix bug of using uninit refcount and free
IB/hns: Remove parameters of resize cq
IB/hns: Remove unused parameters in some functions
IB/hns: Add node_guid definition to the bindings document
...
Pull some more input subsystem updates from Dmitry Torokhov:
"An update to the ALPS driver to support the V8 protocol with
touchstick, a change for i8042 to skip selftest on many Asus laptops
which helps to keep their touchpads working after resume, and a couple
other driver fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: i8042 - skip selftest on ASUS laptops
Input: melfas_mip4 - add ic_name sysfs attribute
Input: melfas_mip4 - add maintainer information
Input: melfas_mip4 - add devicetree binding documentations
Input: elantech - add Fujitsu Lifebook E556 to force crc_enabled
Input: synaptics-rmi4 - fix error handling in I2C transport driver
Input: synaptics-rmi4 - fix error handling in SPI transport driver
Input: ALPS - add V8 protocol documentation
Input: ALPS - set DualPoint flag for 74 03 28 devices
Input: ALPS - allow touchsticks to report pressure
Input: ALPS - handle 0-pressure 1F events
Input: ALPS - add touchstick support for SS5 hardware
Input: elantech - force needed quirks on Fujitsu H760
Input: elantech - fix Lenovo version typo
Subsystem:
- delete owner assignment in multiple drivers
- constify rtc_class_ops structures
Drivers:
- ac100: support clock-output-names
- cmos: properly handle ACPI alarms and quirky BIOSes and other fixes
- ds1307: fix century bit support while staying comaptible with previous
behaviour by default
- ds1347: switch to regmap
- isl12057 is now handled by ds1307
- omap: support external wakeup
- rv8803: allow to disable voltage drop detection
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Merge tag 'rtc-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"RTC for 4.9
Subsystem:
- delete owner assignment in multiple drivers
- constify rtc_class_ops structures
Drivers:
- ac100: support clock-output-names
- cmos: properly handle ACPI alarms and quirky BIOSes and other fixes
- ds1307: fix century bit support while staying comaptible with
previous behaviour by default
- ds1347: switch to regmap
- isl12057 is now handled by ds1307
- omap: support external wakeup
- rv8803: allow to disable voltage drop detection"
* tag 'rtc-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (25 commits)
rtc: rv8803: set VDETOFF and SWOFF via device tree
dt/bindings: Add bindings for Micro Crystal rv8803
devicetree: Add Micro Crystal AG vendor id
rtc: cmos: avoid unused function warning
rtc: ac100: Add NULL checking for devm_kzalloc call
rtc: ds1347: changed raw spi calls to register map calls
rtc: cmos: Restore alarm after resume
rtc: cmos: Clear ACPI-driven alarms upon resume
rtc: omap: Support ext_wakeup configuration
rtc: cmos: Initialize hpet timer before irq is registered
rtc: asm9260: rework locking
rtc: asm9260: allow COMPILE_TEST
rtc: constify rtc_class_ops structures
rtc: ac100: support clock-output-names in device tree binding
rtc: rx6110: remove owner assignment
rtc: pic32: Delete owner assignment
rtc: bq32k: Fix handling of oscillator failure flag
rtc: bq32k: Use correct mask name for 'minutes' register.
rtc: sysfs: fix a cast removing the const attribute
Documentation: dt: Intersil isl12057 is not a trivial device
...
Pull more i2c updates from Wolfram Sang:
"A small update pull request from I2C.
This adds one comment to a change we did in this merge window to
handle lockdep better, and pulls in a branch which should have been in
4.8 already improving DT support for I2C"
* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
gpio: pca953x: add a comment explaining the need for a lockdep subclass
i2c: core: Add support for 'i2c-bus' subnode
dt-bindings: i2c: Add support for 'i2c-bus' subnode
- Fix an unused function warning that started to appear after recent
changes in the ACPI EC driver (Eric Biggers).
- Fix the KERN_CONT usage in acpi_os_vprintf() that has become
(particularly) annoying recently (Joe Perches).
- Fix the fan status checking in the ACPI fan driver to avoid
returning incorrect error codes sometimes (Srinivas Pandruvada).
- Fix the ACPI Processor Aggregator driver (PAD) to always let the
special processor_aggregator driver from Xen take over when
running as Xen dom0 (Juergen Gross).
- Update the handling of reference device properties in ACPI by
allowing empty rows ("holes") to appear in reference property
lists (Mika Westerberg).
- Add a new MAINTAINERS entry for ACPI on ARM64 (Lorenzo Pieralisi).
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Merge tag 'acpi-extra-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI updates from Rafael Wysocki:
"This includes a couple of fixes needed after recent changes, two ACPI
driver fixes (fan and "Processor Aggregator"), an update of the ACPI
device properties handling code and a new MAINTAINERS entry for ACPI
on ARM64.
Specifics:
- Fix an unused function warning that started to appear after recent
changes in the ACPI EC driver (Eric Biggers).
- Fix the KERN_CONT usage in acpi_os_vprintf() that has become
(particularly) annoying recently (Joe Perches).
- Fix the fan status checking in the ACPI fan driver to avoid
returning incorrect error codes sometimes (Srinivas Pandruvada).
- Fix the ACPI Processor Aggregator driver (PAD) to always let the
special processor_aggregator driver from Xen take over when running
as Xen dom0 (Juergen Gross).
- Update the handling of reference device properties in ACPI by
allowing empty rows ("holes") to appear in reference property lists
(Mika Westerberg).
- Add a new MAINTAINERS entry for ACPI on ARM64 (Lorenzo Pieralisi)"
* tag 'acpi-extra-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
acpi_os_vprintf: Use printk_get_level() to avoid unnecessary KERN_CONT
ACPI / PAD: don't register acpi_pad driver if running as Xen dom0
ACPI / property: Allow holes in reference properties
MAINTAINERS: Add ARM64-specific ACPI maintainers entry
ACPI / EC: Fix unused function warning when CONFIG_PM_SLEEP=n
ACPI / fan: Fix error reading cur_state
- Fix two cpufreq regressions causing undesirable changes in
behavior to appear (one in the core and one in the conservative
governor) introduced during the 4.8 cycle (Aaro Koskinen, Rafael
Wysocki).
- Fix the way the intel_pstate driver accesses MSRs related to the
hardware-managed P-states (HWP) feature during the initialization
which currently is unsafe and may cause the processor to generate
a general protection fault (Srinivas Pandruvada).
- Rework the intel_pstate's P-state selection algorithm used on Atom
processors to avoid known problems with the current one and to
make the computation more straightforward, which also happens to
improve performance in multiple benchmarks a bit (Rafael Wysocki).
- Improve two comments in the intel_pstate driver (Rafael Wysocki).
- Fix the desired performance computation in the CPPC cpufreq driver
(Hoan Tran).
- Fix the devfreq core to avoid printing misleading error messages
in some cases (Tobias Jakobi).
- Fix the error code path in devfreq_add_device() to use proper
locking around list modifications (Axel Lin).
- Fix a build failure and remove a couple of redundant updates of
variables in the exynos-nocp devfreq driver (Axel Lin).
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Merge tag 'pm-extra-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:
"This includes a couple of fixes for cpufreq regressions introduced in
4.8, a rework of the intel_pstate algorithm used on Atom processors
(that took some time to test) plus a fix and a couple of cleanups in
that driver, a CPPC cpufreq driver fix, and a some devfreq fixes and
cleanups (core and exynos-nocp).
Specifics:
- Fix two cpufreq regressions causing undesirable changes in behavior
to appear (one in the core and one in the conservative governor)
introduced during the 4.8 cycle (Aaro Koskinen, Rafael Wysocki).
- Fix the way the intel_pstate driver accesses MSRs related to the
hardware-managed P-states (HWP) feature during the initialization
which currently is unsafe and may cause the processor to generate a
general protection fault (Srinivas Pandruvada).
- Rework the intel_pstate's P-state selection algorithm used on Atom
processors to avoid known problems with the current one and to make
the computation more straightforward, which also happens to improve
performance in multiple benchmarks a bit (Rafael Wysocki).
- Improve two comments in the intel_pstate driver (Rafael Wysocki).
- Fix the desired performance computation in the CPPC cpufreq driver
(Hoan Tran).
- Fix the devfreq core to avoid printing misleading error messages in
some cases (Tobias Jakobi).
- Fix the error code path in devfreq_add_device() to use proper
locking around list modifications (Axel Lin).
- Fix a build failure and remove a couple of redundant updates of
variables in the exynos-nocp devfreq driver (Axel Lin)"
* tag 'pm-extra-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: CPPC: Correct desired_perf calculation
cpufreq: conservative: Fix next frequency selection
cpufreq: skip invalid entries when searching the frequency
cpufreq: intel_pstate: Fix struct pstate_adjust_policy kerneldoc
cpufreq: intel_pstate: Proportional algorithm for Atom
PM / devfreq: Skip status update on uninitialized previous_freq
PM / devfreq: Add proper locking around list_del()
PM / devfreq: exynos-nocp: Remove redundant code
PM / devfreq: exynos-nocp: Select REGMAP_MMIO
cpufreq: intel_pstate: Clarify comment in get_target_pstate_use_performance()
cpufreq: intel_pstate: Fix unsafe HWP MSR access
New mount option "idsfromsid" indicates to cifs.ko that
it should try to retrieve the uid and gid owner fields
from special sids. This patch adds the code to parse the owner
sids in the ACL to see if they match, and if so populate the
uid and/or gid from them. This is faster than upcalling for
them and asking winbind, and is a fairly common case, and is
also helpful when cifs.upcall and idmapping is not configured.
Signed-off-by: Steve French <steve.french@primarydata.com>
Reviewed-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Add "idsfromsid" mount option to indicate to cifs.ko that it should
try to retrieve the uid and gid owner fields from special sids in the
ACL if present. This first patch just adds the parsing for the mount
option.
Signed-off-by: Steve French <steve.french@primarydata.com>
Reviewed-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Pull cgroup updates from Tejun Heo:
- tracepoints for basic cgroup management operations added
- kernfs and cgroup path formatting functions updated to behave in the
style of strlcpy()
- non-critical bug fixes
* 'for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
blkcg: Unlock blkcg_pol_mutex only once when cpd == NULL
cgroup: fix error handling regressions in proc_cgroup_show() and cgroup_release_agent()
cpuset: fix error handling regression in proc_cpuset_show()
cgroup: add tracepoints for basic operations
cgroup: make cgroup_path() and friends behave in the style of strlcpy()
kernfs: remove kernfs_path_len()
kernfs: make kernfs_path*() behave in the style of strlcpy()
kernfs: add dummy implementation of kernfs_path_from_node()
Adds a skeletal implementation of the qed* RoCE driver -
basically the ability to communicate with the qede driver and
receive notifications from it regarding various init/exit events.
Signed-off-by: Rajesh Borundia <rajesh.borundia@cavium.com>
Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Pull percpu updates from Tejun Heo:
- Nick improved generic implementations of percpu operations which
modify the variable and return so that they calculate the physical
address only once.
- percpu_ref percpu <-> atomic mode switching improvements. The
patchset was originally posted about a year ago but fell through the
crack.
- misc non-critical fixes.
* 'for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:
mm/percpu.c: fix potential memory leakage for pcpu_embed_first_chunk()
mm/percpu.c: correct max_distance calculation for pcpu_embed_first_chunk()
percpu: eliminate two sparse warnings
percpu: improve generic percpu modify-return implementation
percpu-refcount: init ->confirm_switch member properly
percpu_ref: allow operation mode switching operations to be called concurrently
percpu_ref: restructure operation mode switching
percpu_ref: unify staggered atomic switching wait behavior
percpu_ref: reorganize __percpu_ref_switch_to_atomic() and relocate percpu_ref_switch_to_atomic()
percpu_ref: remove unnecessary RCU grace period for staggered atomic switching confirmation
