Linus Torvalds [Fri, 15 Mar 2019 21:41:30 +0000 (14:41 -0700)]
Merge tag 'iommu-fix-v5.1-rc1' of git://git./linux/kernel/git/joro/iommu
Pull IOMMU fix from Joerg Roedel:
"Fix a NULL-pointer dereference issue in the ACPI device matching code
of the AMD IOMMU driver"
* tag 'iommu-fix-v5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/amd: Fix NULL dereference bug in match_hid_uid
Linus Torvalds [Fri, 15 Mar 2019 21:37:46 +0000 (14:37 -0700)]
Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King:
- An improvement from Ard Biesheuvel, who noted that the identity map
setup was taking a long time due to flush_cache_louis().
- Update a comment about dma_ops from Wolfram Sang.
- Remove use of "-p" with ld, where this flag has been a no-op since
2004.
- Remove the printing of the virtual memory layout, which is no longer
useful since we hide pointers.
- Correct SCU help text.
- Remove legacy TWD registration method.
- Add pgprot_device() implementation for mapping PCI sysfs resource
files.
- Initialise PFN limits earlier for kmemleak.
- Fix argument count to match macro definition (affects clang builds)
- Use unified assembler language almost everywhere for clang, and other
clang improvements (from Stefan Agner, Nathan Chancellor).
- Support security extension for noMMU and other noMMU cleanups (from
Vladimir Murzin).
- Remove unnecessary SMP bringup code (which was incorrectly copy'n'
pasted from the ARM platform implementations) and remove it from the
arch code to discourge further copys of it appearing.
- Add Cortex A9 erratum preventing kexec working on some SoCs.
- AMBA bus identification updates from Mike Leach.
- More use of raw spinlocks to avoid -RT kernel issues (from Yang Shi
and Sebastian Andrzej Siewior).
- MCPM hyp/svc mode mismatch fixes from Marek Szyprowski.
* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: (32 commits)
ARM: 8849/1: NOMMU: Fix encodings for PMSAv8's PRBAR4/PRLAR4
ARM: 8848/1: virt: Align GIC version check with arm64 counterpart
ARM: 8847/1: pm: fix HYP/SVC mode mismatch when MCPM is used
ARM: 8845/1: use unified assembler in c files
ARM: 8844/1: use unified assembler in assembly files
ARM: 8843/1: use unified assembler in headers
ARM: 8841/1: use unified assembler in macros
ARM: 8840/1: use a raw_spinlock_t in unwind
ARM: 8839/1: kprobe: make patch_lock a raw_spinlock_t
ARM: 8837/1: coresight: etmv4: Update ID register table to add UCI support
ARM: 8836/1: drivers: amba: Update component matching to use the CoreSight UCI values.
ARM: 8838/1: drivers: amba: Updates to component identification for driver matching.
ARM: 8833/1: Ensure that NEON code always compiles with Clang
ARM: avoid Cortex-A9 livelock on tight dmb loops
ARM: smp: remove arch-provided "pen_release"
ARM: actions: remove boot_lock and pen_release
ARM: oxnas: remove CPU hotplug implementation
ARM: qcom: remove unnecessary boot_lock
ARM: 8832/1: NOMMU: Limit visibility for CONFIG_FLASH_{MEM_BASE,SIZE}
ARM: 8831/1: NOMMU: pmsa-v8: remove unneeded semicolon
...
Linus Torvalds [Fri, 15 Mar 2019 21:32:59 +0000 (14:32 -0700)]
Merge tag 'ntb-5.1' of git://github.com/jonmason/ntb
Pull NTB updates from Jon Mason:
- fixes for switchtec debugability and mapping table entries
- NTB transport improvements
- a reworking of the peer_db_addr for better abstraction
* tag 'ntb-5.1' of git://github.com/jonmason/ntb:
NTB: add new parameter to peer_db_addr() db_bit and db_data
NTB: ntb_transport: Ensure the destination buffer is mapped for TX DMA
NTB: ntb_transport: Free MWs in ntb_transport_link_cleanup()
ntb_hw_switchtec: Added support of >=4G memory windows
ntb_hw_switchtec: NT req id mapping table register entry number should be 512
ntb_hw_switchtec: debug print 64bit aligned crosslink BAR Numbers
Linus Torvalds [Fri, 15 Mar 2019 21:22:59 +0000 (14:22 -0700)]
Merge tag 'fbdev-v5.1' of git://github.com/bzolnier/linux
Pull fbdev updates from Bartlomiej Zolnierkiewicz:
"Just a couple of small fixes and cleanups:
- fix memory access if logo is bigger than the screen (Manfred
Schlaegl)
- silence fbcon logo on 'quiet' boots (Prarit Bhargava)
- use kvmalloc() for scrollback buffer in fbcon (Konstantin Khorenko)
- misc fixes (Colin Ian King, YueHaibing, Matteo Croce, Mathieu
Malaterre, Anders Roxell, Arnd Bergmann)
- misc cleanups (Rob Herring, Lubomir Rintel, Greg Kroah-Hartman,
Jani Nikula, Michal Vokáč)"
* tag 'fbdev-v5.1' of git://github.com/bzolnier/linux:
fbdev: mbx: fix a misspelled variable name
fbdev: omap2: fix warnings in dss core
video: fbdev: Fix potential NULL pointer dereference
fbcon: Silence fbcon logo on 'quiet' boots
printk: Export console_printk
ARM: dts: imx28-
cfa10036: Fix the reset gpio signal polarity
video: ssd1307fb: Do not hard code active-low reset sequence
dt-bindings: display: ssd1307fb: Remove reset-active-low from examples
fbdev: fbmem: fix memory access if logo is bigger than the screen
video/fbdev: refactor video= cmdline parsing
fbdev: mbx: fix up debugfs file creation
fbdev: omap2: no need to check return value of debugfs_create functions
video: fbdev: geode: remove ifdef OLPC noise
video: offb: annotate implicit fall throughs
omapfb: fix typo
fbdev: Use of_node_name_eq for node name comparisons
fbcon: use kvmalloc() for scrollback buffer
fbdev: chipsfb: remove set but not used variable 'size'
fbdev/via: fix spelling mistake "Expandsion" -> "Expansion"
Linus Torvalds [Fri, 15 Mar 2019 21:16:28 +0000 (14:16 -0700)]
Merge branch 'i2c/for-current-fixed' of git://git./linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"A set of driver bugfixes and an improvement for a core helper"
* 'i2c/for-current-fixed' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: i2c-designware-platdrv: Always use a dynamic adapter number
i2c: i2c-designware-platdrv: Cleanup setting of the adapter number
i2c: add extra check to safe DMA buffer helper
i2c: i2c-stm32f7: Fix SDADEL minimum formula
i2c: rcar: explain the lockless design
i2c: rcar: fix concurrency issue related to ICDMAER
i2c: sis630: correct format strings
i2c: mediatek: modify threshold passed to i2c_get_dma_safe_msg_buf()
Linus Torvalds [Fri, 15 Mar 2019 21:05:00 +0000 (14:05 -0700)]
Merge tag 'sound-fix-5.1-rc1' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Some cleaning after the first batch; mostly about HD-audio quirks but
also some NULL dereference fixes in corner cases and a random build
error fix, too"
* tag 'sound-fix-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/realtek - Add support headset mode for New DELL WYSE NB
ALSA: hda/realtek - Add support headset mode for DELL WYSE AIO
ALSA: hda/realtek: merge alc_fixup_headset_jack to alc295_fixup_chromebook
ALSA: pcm: Fix function name in kernel-doc comment
ALSA: hda: hdmi - add Icelake support
ALSA: hda - add more quirks for HP Z2 G4 and HP Z240
ALSA: hda/realtek - Fixed Headset Mic JD not stable
ALSA: hda/realtek: Enable headset MIC of Acer TravelMate X514-51T with ALC255
ALSA: hda/tegra: avoid build error without CONFIG_PM
ALSA: usx2y: Fix potential NULL pointer dereference
ALSA: hda: Avoid NULL pointer dereference at snd_hdac_stream_start()
Linus Torvalds [Fri, 15 Mar 2019 20:58:35 +0000 (13:58 -0700)]
Merge tag 'drm-next-2019-03-15' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes and updates from Dave Airlie:
"A few various fixes pulls and one late etnaviv pull but it was nearly
all fixes anyways.
etnaviv:
- late next pull
- mmu mapping fix
- build non-ARM arches
- misc fixes
i915:
- HDCP state handling fix
- shrinker interaction fix
- atomic state leak fix
qxl:
- kick out framebuffers early fix
amdgpu:
- Powerplay fixes
- DC fixes
- BACO turned off for now on vega20
- Locking fix
- KFD MQD fix
- gfx9 golden register updates"
* tag 'drm-next-2019-03-15' of git://anongit.freedesktop.org/drm/drm: (43 commits)
drm/amdgpu: Update gc golden setting for vega family
drm/amd/powerplay: correct power reading on fiji
drm/amd/powerplay: set max fan target temperature as 105C
drm/i915: Relax mmap VMA check
drm/i915: Fix atomic state leak when resetting HDMI link
drm/i915: Acquire breadcrumb ref before cancelling
drm/i915/selftests: Always free spinner on __sseu_prepare error
drm/i915: Reacquire priolist cache after dropping the engine lock
drm/i915: Protect i915_active iterators from the shrinker
drm/i915: HDCP state handling in ddi_update_pipe
drm/qxl: remove conflicting framebuffers earlier
drm/fb-helper: call vga_remove_vgacon automatically.
drm: move i915_kick_out_vgacon to vgaarb
drm/amd/display: don't call dm_pp_ function from an fpu block
drm: add __user attribute to ptr_to_compat()
drm/amdgpu: clear PDs/PTs only after initializing them
drm/amd/display: Pass app_tf by value rather than by reference
Revert "drm/amdgpu: use BACO reset on vega20 if platform support"
drm/amd/powerplay: show the right override pcie parameters
drm/amd/powerplay: honor the OD settings
...
Linus Torvalds [Fri, 15 Mar 2019 20:55:30 +0000 (13:55 -0700)]
Merge tag 'xfs-5.1-merge-5' of git://git./fs/xfs/xfs-linux
Pull xfs cleanups from Darrick Wong:
"Here's a few more cleanups that trickled in for the merge window.
It's all fixes for static checker complaints and slowly unwinding
typedef usage. The four patches here have gone through a few days
worth of fstest runs with no new problems observed.
Summary:
- Fix some clang/smatch/sparse warnings about uninitialized
variables.
- Clean up some typedef usage"
* tag 'xfs-5.1-merge-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: clean up xfs_dir2_leaf_addname
xfs: zero initialize highstale and lowstale in xfs_dir2_leaf_addname
xfs: clean up xfs_dir2_leafn_add
xfs: Zero initialize highstale and lowstale in xfs_dir2_leafn_add
Linus Torvalds [Fri, 15 Mar 2019 20:42:53 +0000 (13:42 -0700)]
Merge tag 'f2fs-for-5.1' of git://git./linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
"We've continued mainly to fix bugs in this round, as f2fs has been
shipped in more devices. Especially, we've focused on stabilizing
checkpoint=disable feature, and provided some interfaces for QA.
Enhancements:
- expose FS_NOCOW_FL for pin_file
- run discard jobs at unmount time with timeout
- tune discarding thread to avoid idling which consumes power
- some checking codes to address vulnerabilities
- give random value to i_generation
- shutdown with more flags for QA
Bug fixes:
- clean up stale objects when mount is failed along with
checkpoint=disable
- fix system being stuck due to wrong count by atomic writes
- handle some corrupted disk cases
- fix a deadlock in f2fs_read_inline_dir
We've also added some minor build error fixes and clean-up patches"
* tag 'f2fs-for-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (53 commits)
f2fs: set pin_file under CAP_SYS_ADMIN
f2fs: fix to avoid deadlock in f2fs_read_inline_dir()
f2fs: fix to adapt small inline xattr space in __find_inline_xattr()
f2fs: fix to do sanity check with inode.i_inline_xattr_size
f2fs: give some messages for inline_xattr_size
f2fs: don't trigger read IO for beyond EOF page
f2fs: fix to add refcount once page is tagged PG_private
f2fs: remove wrong comment in f2fs_invalidate_page()
f2fs: fix to use kvfree instead of kzfree
f2fs: print more parameters in trace_f2fs_map_blocks
f2fs: trace f2fs_ioc_shutdown
f2fs: fix to avoid deadlock of atomic file operations
f2fs: fix to dirty inode for i_mode recovery
f2fs: give random value to i_generation
f2fs: no need to take page lock in readdir
f2fs: fix to update iostat correctly in IPU path
f2fs: fix encrypted page memory leak
f2fs: make fault injection covering __submit_flush_wait()
f2fs: fix to retry fill_super only if recovery failed
f2fs: silence VM_WARN_ON_ONCE in mempool_alloc
...
Linus Torvalds [Fri, 15 Mar 2019 19:00:45 +0000 (12:00 -0700)]
Merge branch 'akpm' (rest of patches from Andrew)
Merge the left-over patches from Andrew Morton.
This merges the remaining two patches from Andrew's pile of "little bit
more MM". I mulled it over, and we emailed back and forth with Josef,
and he pointed out where I was wrong.
Rule #51 of kernel maintenance: when somebody makes it clear that they
know the code better than you did, stop arguing and just apply the damn
patch.
Add a third patch by me to add a comment for the case that I had thought
was buggy and Josef corrected me on.
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
filemap: add a comment about FAULT_FLAG_RETRY_NOWAIT behavior
filemap: drop the mmap_sem for all blocking operations
filemap: kill page_cache_read usage in filemap_fault
Linus Torvalds [Fri, 15 Mar 2019 18:26:07 +0000 (11:26 -0700)]
filemap: add a comment about FAULT_FLAG_RETRY_NOWAIT behavior
I thought Josef Bacik's patch to drop the mmap_sem was buggy, because
when looking at the error cases, there was one case where we returned
VM_FAULT_RETRY without actually dropping the mmap_sem.
Josef had to explain to me (using small words) that yes, that's actually
what we're supposed to do, and his patch was correct. Which not only
convinced me he knew what he was doing and I should stop arguing with
him, but also that I should add a comment to the case I was confused
about.
Patiently-pointed-out-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Josef Bacik [Wed, 13 Mar 2019 18:44:22 +0000 (11:44 -0700)]
filemap: drop the mmap_sem for all blocking operations
Currently we only drop the mmap_sem if there is contention on the page
lock. The idea is that we issue readahead and then go to lock the page
while it is under IO and we want to not hold the mmap_sem during the IO.
The problem with this is the assumption that the readahead does anything.
In the case that the box is under extreme memory or IO pressure we may end
up not reading anything at all for readahead, which means we will end up
reading in the page under the mmap_sem.
Even if the readahead does something, it could get throttled because of io
pressure on the system and the process is in a lower priority cgroup.
Holding the mmap_sem while doing IO is problematic because it can cause
system-wide priority inversions. Consider some large company that does a
lot of web traffic. This large company has load balancing logic in it's
core web server, cause some engineer thought this was a brilliant plan.
This load balancing logic gets statistics from /proc about the system,
which trip over processes mmap_sem for various reasons. Now the web
server application is in a protected cgroup, but these other processes may
not be, and if they are being throttled while their mmap_sem is held we'll
stall, and cause this nice death spiral.
Instead rework filemap fault path to drop the mmap sem at any point that
we may do IO or block for an extended period of time. This includes while
issuing readahead, locking the page, or needing to call ->readpage because
readahead did not occur. Then once we have a fully uptodate page we can
return with VM_FAULT_RETRY and come back again to find our nicely in-cache
page that was gotten outside of the mmap_sem.
This patch also adds a new helper for locking the page with the mmap_sem
dropped. This doesn't make sense currently as generally speaking if the
page is already locked it'll have been read in (unless there was an error)
before it was unlocked. However a forthcoming patchset will change this
with the ability to abort read-ahead bio's if necessary, making it more
likely that we could contend for a page lock and still have a not uptodate
page. This allows us to deal with this case by grabbing the lock and
issuing the IO without the mmap_sem held, and then returning
VM_FAULT_RETRY to come back around.
[josef@toxicpanda.com: v6]
Link: http://lkml.kernel.org/r/20181212152757.10017-1-josef@toxicpanda.com
[kirill@shutemov.name: fix race in filemap_fault()]
Link: http://lkml.kernel.org/r/20181228235106.okk3oastsnpxusxs@kshutemo-mobl1
[akpm@linux-foundation.org: coding style fixes]
Link: http://lkml.kernel.org/r/20181211173801.29535-4-josef@toxicpanda.com
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Tested-by: syzbot+b437b5a429d680cf2217@syzkaller.appspotmail.com
Cc: Dave Chinner <david@fromorbit.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Josef Bacik [Wed, 13 Mar 2019 18:44:14 +0000 (11:44 -0700)]
filemap: kill page_cache_read usage in filemap_fault
Patch series "drop the mmap_sem when doing IO in the fault path", v6.
Now that we have proper isolation in place with cgroups2 we have started
going through and fixing the various priority inversions. Most are all
gone now, but this one is sort of weird since it's not necessarily a
priority inversion that happens within the kernel, but rather because of
something userspace does.
We have giant applications that we want to protect, and parts of these
giant applications do things like watch the system state to determine how
healthy the box is for load balancing and such. This involves running
'ps' or other such utilities. These utilities will often walk
/proc/<pid>/whatever, and these files can sometimes need to
down_read(&task->mmap_sem). Not usually a big deal, but we noticed when
we are stress testing that sometimes our protected application has latency
spikes trying to get the mmap_sem for tasks that are in lower priority
cgroups.
This is because any down_write() on a semaphore essentially turns it into
a mutex, so even if we currently have it held for reading, any new readers
will not be allowed on to keep from starving the writer. This is fine,
except a lower priority task could be stuck doing IO because it has been
throttled to the point that its IO is taking much longer than normal. But
because a higher priority group depends on this completing it is now stuck
behind lower priority work.
In order to avoid this particular priority inversion we want to use the
existing retry mechanism to stop from holding the mmap_sem at all if we
are going to do IO. This already exists in the read case sort of, but
needed to be extended for more than just grabbing the page lock. With
io.latency we throttle at submit_bio() time, so the readahead stuff can
block and even page_cache_read can block, so all these paths need to have
the mmap_sem dropped.
The other big thing is ->page_mkwrite. btrfs is particularly shitty here
because we have to reserve space for the dirty page, which can be a very
expensive operation. We use the same retry method as the read path, and
simply cache the page and verify the page is still setup properly the next
pass through ->page_mkwrite().
I've tested these patches with xfstests and there are no regressions.
This patch (of 3):
If we do not have a page at filemap_fault time we'll do this weird forced
page_cache_read thing to populate the page, and then drop it again and
loop around and find it. This makes for 2 ways we can read a page in
filemap_fault, and it's not really needed. Instead add a FGP_FOR_MMAP
flag so that pagecache_get_page() will return a unlocked page that's in
pagecache. Then use the normal page locking and readpage logic already in
filemap_fault. This simplifies the no page in page cache case
significantly.
[akpm@linux-foundation.org: fix comment text]
[josef@toxicpanda.com: don't unlock null page in FGP_FOR_MMAP case]
Link: http://lkml.kernel.org/r/20190312201742.22935-1-josef@toxicpanda.com
Link: http://lkml.kernel.org/r/20181211173801.29535-2-josef@toxicpanda.com
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Aaron Ma [Wed, 13 Mar 2019 13:53:24 +0000 (21:53 +0800)]
iommu/amd: Fix NULL dereference bug in match_hid_uid
Add a non-NULL check to fix potential NULL pointer dereference
Cleanup code to call function once.
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Fixes:
2bf9a0a12749b ('iommu/amd: Add iommu support for ACPI HID devices')
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Russell King [Fri, 15 Mar 2019 15:12:56 +0000 (15:12 +0000)]
Merge branches 'fixes', 'misc' and 'smp-hotplug' into for-next
Linus Torvalds [Thu, 14 Mar 2019 22:10:10 +0000 (15:10 -0700)]
Merge branch 'akpm' (patches from Andrew)
Merge misc patches from Andrew Morton:
- a little bit more MM
- a few fixups
[ The "little bit more MM" is actually just one of the three patches
Andrew sent for mm/filemap.c, I'm still mulling over two more of them
from Josef Bacik - Linus ]
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
include/linux/swap.h: use offsetof() instead of custom __swapoffset macro
tools/testing/selftests/proc/proc-pid-vm.c: test with vsyscall in mind
zram: default to lzo-rle instead of lzo
filemap: pass vm_fault to the mmap ra helpers
Pi-Hsun Shih [Wed, 13 Mar 2019 18:44:33 +0000 (11:44 -0700)]
include/linux/swap.h: use offsetof() instead of custom __swapoffset macro
Use offsetof() to calculate offset of a field to take advantage of
compiler built-in version when possible, and avoid UBSAN warning when
compiling with Clang:
UBSAN: Undefined behaviour in mm/swapfile.c:3010:38
member access within null pointer of type 'union swap_header'
CPU: 6 PID: 1833 Comm: swapon Tainted: G S 4.19.23 #43
Call trace:
dump_backtrace+0x0/0x194
show_stack+0x20/0x2c
__dump_stack+0x20/0x28
dump_stack+0x70/0x94
ubsan_epilogue+0x14/0x44
ubsan_type_mismatch_common+0xf4/0xfc
__ubsan_handle_type_mismatch_v1+0x34/0x54
__se_sys_swapon+0x654/0x1084
__arm64_sys_swapon+0x1c/0x24
el0_svc_common+0xa8/0x150
el0_svc_compat_handler+0x2c/0x38
el0_svc_compat+0x8/0x18
Link: http://lkml.kernel.org/r/20190312081902.223764-1-pihsun@chromium.org
Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alexey Dobriyan [Wed, 13 Mar 2019 18:44:29 +0000 (11:44 -0700)]
tools/testing/selftests/proc/proc-pid-vm.c: test with vsyscall in mind
: selftests: proc: proc-pid-vm
: ========================================
: proc-pid-vm: proc-pid-vm.c:277: main: Assertion `rv == strlen(buf0)' failed.
: Aborted
Because the vsyscall mapping is enabled. Read from vsyscall page to tell
if vsyscall is being used.
Link: http://lkml.kernel.org/r/20190307183204.GA11405@avx2
Link: http://lkml.kernel.org/r/20190219094722.GB28258@shao2-debian
Fixes:
34aab6bec23e7e9 ("proc: test /proc/*/maps, smaps, smaps_rollup, statm")
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Reported-by: kernel test robot <rong.a.chen@intel.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Dave Rodgman [Wed, 13 Mar 2019 18:44:26 +0000 (11:44 -0700)]
zram: default to lzo-rle instead of lzo
lzo-rle gives higher performance and similar compression ratios to lzo.
Link: http://lkml.kernel.org/r/20190205155944.16007-4-dave.rodgman@arm.com
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Josef Bacik [Wed, 13 Mar 2019 18:44:18 +0000 (11:44 -0700)]
filemap: pass vm_fault to the mmap ra helpers
All of the arguments to these functions come from the vmf.
Cut down on the amount of arguments passed by simply passing in the vmf
to these two helpers.
Link: http://lkml.kernel.org/r/20181211173801.29535-3-josef@toxicpanda.com
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 14 Mar 2019 17:48:14 +0000 (10:48 -0700)]
Merge tag 'acpi-5.1-rc1-2' of git://git./linux/kernel/git/rafael/linux-pm
Pull more ACPI updates from Rafael Wysocki:
"These fix a couple of issues and do some cleanups on top of the
previous ACPI changes for 5.1-rc1.
Specifics:
- Fix a crash caused by unloading an SSDT overlay (Andy Shevchenko)
- Prevent user space from getting confusing error values on failing
ACPI sysfs accesses (Rafael Wysocki)
- Simplify leaf node detection in the PPTT parsing code by using a
new flag defined in ACPI 6.3 (Jeremy Linton)
- Add missing "static" in some places in the ACPI configfs code (Andy
Shevchenko)
- Fix acpidbg tool path in the ACPI documentation (Flavio Suligoi)"
* tag 'acpi-5.1-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: sysfs: Prevent get_status() from returning acpi_status
ACPI / device_sysfs: Avoid OF modalias creation for removed device
ACPI / configfs: Mark local data structures static
ACPI / configfs: Mark local functions static
ACPI: tables: Simplify PPTT leaf node detection
ACPI: Documentation: Fix path for acpidbg tool
Linus Torvalds [Thu, 14 Mar 2019 17:30:06 +0000 (10:30 -0700)]
Merge tag 'pm-5.1-rc1-2' of git://git./linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:
"These are mostly fixes and cleanups on top of the previously merged
power management material for 5.1-rc1 with one cpupower utility update
that wasn't pushed earlier due to unfortunate timing.
Specifics:
- Fix registration of new cpuidle governors partially broken during
the 5.0 development cycle by mistake (Rafael Wysocki).
- Avoid integer overflows in the menu cpuidle governor by making it
discard the overflowing data points upfront (Rafael Wysocki).
- Fix minor mistake in the recent update of the iowait boost
computation in the intel_pstate driver (Rafael Wysocki).
- Drop incorrect __init annotation from one function in the pxa2xx
cpufreq driver (Arnd Bergmann).
- Fix the operating performance points (OPP) framework initialization
for devices in multiple power domains if only one of them is
scalable (Rajendra Nayak).
- Fix mistake in dev_pm_opp_set_rate() which causes it to skip
updating the performance state if the new frequency is the same as
the old one (Viresh Kumar).
- Rework the cancellation of wakeup source timers to avoid potential
issues with it and do some cleanups unlocked by that change (Viresh
Kumar, Rafael Wysocki).
- Clean up the code computing the active/suspended time of devices in
the PM-runtime framework after recent changes (Ulf Hansson).
- Make the power management infrastructure code use pr_fmt()
consistently (Joe Perches).
- Clean up the generic power domains (genpd) framework somewhat
(Aisheng Dong).
- Improve kerneldoc comments for two functions in the cpufreq core
(Rafael Wysocki).
- Fix typo in a PM QoS file description comment (Aisheng Dong).
- Update the handling of CPU boost frequencies in the cpupower
utility (Abhishek Goel)"
* tag 'pm-5.1-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpuidle: governor: Add new governors to cpuidle_governors again
cpufreq: intel_pstate: Fix up iowait_boost computation
PM / OPP: Update performance state when freq == old_freq
PM / wakeup: Drop wakeup_source_drop()
PM / wakeup: Rework wakeup source timer cancellation
PM / domains: Remove one unnecessary blank line
PM / Domains: Return early for all errors in _genpd_power_off()
PM / Domains: Improve warn for multiple states but no governor
OPP: Fix handling of multiple power domains
PM / QoS: Fix typo in file description
cpufreq: pxa2xx: remove incorrect __init annotation
PM-runtime: Call pm_runtime_active|suspended_time() from sysfs
PM-runtime: Consolidate code to get active/suspended time
PM: Add and use pr_fmt()
cpufreq: Improve kerneldoc comments for cpufreq_cpu_get/put()
cpuidle: menu: Avoid overflows when computing variance
tools/power/cpupower: Display boost frequency separately
Linus Torvalds [Thu, 14 Mar 2019 17:27:47 +0000 (10:27 -0700)]
Merge tag 'microblaze-v5.1-rc1' of git://git.monstr.eu/linux-2.6-microblaze
Pull Microblaze update from Michal Simek:
"Simplify debugfs initialization"
* tag 'microblaze-v5.1-rc1' of git://git.monstr.eu/linux-2.6-microblaze:
microblaze: no need to check return value of debugfs_create functions
Jaegeuk Kim [Wed, 13 Mar 2019 23:15:08 +0000 (16:15 -0700)]
f2fs: set pin_file under CAP_SYS_ADMIN
Android uses pin_file for uncrypt during OTA, and that should be managed by
CAP_SYS_ADMIN only.
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Linus Torvalds [Thu, 14 Mar 2019 16:28:12 +0000 (09:28 -0700)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
"More fixes in the queue:
1) Netfilter nat can erroneously register the device notifier twice,
fix from Florian Westphal.
2) Use after free in nf_tables, from Pablo Neira Ayuso.
3) Parallel update of steering rule fix in mlx5 river, from Eli
Britstein.
4) RX processing panic in lan743x, fix from Bryan Whitehead.
5) Use before initialization of TCP_SKB_CB, fix from Christoph Paasch.
6) Fix locking in SRIOV mode of mlx4 driver, from Jack Morgenstein.
7) Fix TX stalls in lan743x due to mishandling of interrupt ACKing
modes, from Bryan Whitehead.
8) Fix infoleak in l2tp_ip6_recvmsg(), from Eric Dumazet"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (43 commits)
pptp: dst_release sk_dst_cache in pptp_sock_destruct
MAINTAINERS: GENET & SYSTEMPORT: Add internal Broadcom list
l2tp: fix infoleak in l2tp_ip6_recvmsg()
net/tls: Inform user space about send buffer availability
net_sched: return correct value for *notify* functions
lan743x: Fix TX Stall Issue
net/mlx4_core: Fix qp mtt size calculation
net/mlx4_core: Fix locking in SRIOV mode when switching between events and polling
net/mlx4_core: Fix reset flow when in command polling mode
mlxsw: minimal: Initialize base_mac
mlxsw: core: Prevent duplication during QSFP module initialization
net: dwmac-sun8i: fix a missing check of of_get_phy_mode
net: sh_eth: fix a missing check of of_get_phy_mode
net: 8390: fix potential NULL pointer dereferences
net: fujitsu: fix a potential NULL pointer dereference
net: qlogic: fix a potential NULL pointer dereference
isdn: hfcpci: fix potential NULL pointer dereference
Documentation: devicetree: add a new optional property for port mac address
net: rocker: fix a potential NULL pointer dereference
net: qlge: fix a potential NULL pointer dereference
...
Linus Torvalds [Thu, 14 Mar 2019 16:11:54 +0000 (09:11 -0700)]
Merge tag 'dmaengine-5.1-rc1' of git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine updates from Vinod Koul:
- dmatest updates for modularizing common struct and code
- remove SG support for VDMA xilinx IP and updates to driver
- Update to dw driver to support Intel iDMA controllers multi-block
support
- tegra updates for proper reporting of residue
- Add Snow Ridge ioatdma device id and support for IOATDMA v3.4
- struct_size() usage and useless LIST_HEAD cleanups in subsystem.
- qDMA controller driver for Layerscape SoCs
- stm32-dma PM Runtime support
- And usual updates to imx-sdma, sprd, Documentation, fsl-edma,
bcm2835, qcom_hidma etc
* tag 'dmaengine-5.1-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (81 commits)
dmaengine: imx-sdma: fix consistent dma test failures
dmaengine: imx-sdma: add a test for imx8mq multi sdma devices
dmaengine: imx-sdma: add clock ratio 1:1 check
dmaengine: dmatest: move test data alloc & free into functions
dmaengine: dmatest: add short-hand `buf_size` var in dmatest_func()
dmaengine: dmatest: wrap src & dst data into a struct
dmaengine: ioatdma: support latency tolerance report (LTR) for v3.4
dmaengine: ioatdma: add descriptor pre-fetch support for v3.4
dmaengine: ioatdma: disable DCA enabling on IOATDMA v3.4
dmaengine: ioatdma: Add Snow Ridge ioatdma device id
dmaengine: sprd: Change channel id to slave id for DMA cell specifier
dt-bindings: dmaengine: sprd: Change channel id to slave id for DMA cell specifier
dmaengine: mv_xor: Use correct device for DMA API
Documentation :dmaengine: clarify DMA desc. pointer after submission
Documentation: dmaengine: fix dmatest.rst warning
dmaengine: k3dma: Add support for dma-channel-mask
dmaengine: k3dma: Delete axi_config
dmaengine: k3dma: Upgrade k3dma driver to support hisi_asp_dma hardware
Documentation: bindings: dma: Add binding for dma-channel-mask
Documentation: bindings: k3dma: Extend the k3dma driver binding to support hisi-asp
...
Linus Torvalds [Thu, 14 Mar 2019 16:00:06 +0000 (09:00 -0700)]
Merge tag 'rproc-v5.1' of git://github.com/andersson/remoteproc
Pull remoteproc updates from Bjorn Andersson:
"This contains the last patches in Loic's remoteproc resource table
handling changes, a number of updates to documentation, support for
invoking the crash handler (for testing purposes), a fix for the
handling of virtio devices during recovery, performance state votes in
Qualcomm modem driver, support for specifying board specific firmware
path for Qualcomm modem driver and improved support for graceful
shutdown of Qualcomm remoteprocs"
* tag 'rproc-v5.1' of git://github.com/andersson/remoteproc: (33 commits)
remoteproc: fix for "dma-mapping: remove the DMA_MEMORY_EXCLUSIVE flag"
remoteproc: fix rproc_check_carveout_da() returned error and comments
remoteproc: fix trace buffer va initialization
remoteproc: fix rproc_alloc_carveout() for rproc with iommu domain
remoteproc: add warning on resource table cast
remoteproc: fix rproc_alloc_carveout() bad variable cast
remoteproc: fix rproc_da_to_va in case of unallocated carveout
remoteproc: correct rproc_mem_entry_init() comments
remoteproc: fix recovery procedure
rpmsg: virtio: change header file sort style
rpmsg: virtio: allocate buffer from parent
remoteproc: st: add reserved memory support
remoteproc: create vdev subdevice with specific dma memory pool
remoteproc: q6v5_adsp: Remove voting for lpass_aon clock
dt-binding: remoteproc: Remove lpass_aon clock from adsp pil clock list
remoteproc: q6v5-mss: Active powerdomain for SDM845
remoteproc: q6v5-mss: Vote for rpmh power domains
remoteproc: qcom: Add support for parsing fw dt bindings
remoteproc: qcom_q6v5: don't auto boot remote processor
remoteproc: qcom: Wait for shutdown-ack/ind on sysmon shutdown
...
Linus Torvalds [Thu, 14 Mar 2019 15:46:17 +0000 (08:46 -0700)]
Merge tag 'clk-for-linus' of git://git./linux/kernel/git/clk/linux
Pull clk subsystem updates from Stephen Boyd:
"We have a fairly balanced mix of clk driver updates and clk framework
updates this time around. It's the usual pile of new drivers for new
hardware out there and the normal small fixes and updates, but then we
have some core framework changes too.
In the core framework, we introduce support for a clk_get_optional()
API to get clks that may not always be populated and a way to devm
manage clkdev lookups registered by provider drivers. We also do some
refactoring to simplify the interface between clkdev and the common
clk framework so we can reuse the DT parsing and clk_get() path in
provider drivers in the future. This work will continue in the next
few cycles while we convert how providers specify clk parents.
On the driver side, the biggest part of the dirstat is the Amlogic clk
driver that got support for the G12A SoC. It dominates with almost
half the overall diff, while the second largest part of the diff is in
the i.MX clk driver that gained support for imx8mm SoCs. After that,
we have the Actions Semiconductor and Qualcomm drivers rounding out
the big part of the dirstat because they both got new hardware support
for SoCs. The rest is just various updates and non-critical fixes for
existing drivers.
Core:
- Convert a few clk bindings to JSON schema format
- Add a {devm_}clk_get_optional() API
- Add devm_clk_hw_register_clkdev() API to manage clkdev lookups
- Start rewriting clk parent registration and supporting device links
by moving around code that supports clk_get() and DT parsing of the
'clocks' property
New Drivers:
- Add Qualcomm MSM8998 RPM managed clks
- IPA clk support on Qualcomm RPMh clk controllers
- Actions Semi S500 SoC clk support
- Support for fixed rate clks populated from an MMIO register
- Add RPC (QSPI/HyperFLASH) clocks on Renesas R-Car V3H
- Add TMU (timer) clocks on Renesas RZ/G2E
- Add Amlogic G12A Always-On Clock Controller
- Add 32k clock generation for Amlogic AXG
- Add support for the Mali GPU clocks on Amlogic Meson8
- Add Amlogic G12A EE clock controller driver
- Add missing CANFD clocks on Renesas RZ/G2M and RZ/G2E
- Add i.MX8MM SoC clk driver support
Removed Drivers:
- Remove clps711x driver as the board support is gone
Updates:
- 3rd ECO fix for Mediatek MT2712 SoCs
- Updates for Qualcomm MSM8998 GCC clks
- Random static analysis fixes for clk drivers
- Support for sleeping gpios in the clk-gpio type
- Minor fixes for STM32MP1 clk driver (parents, critical flag, etc.)
- Split LCDC into two clks on the Marvell MMP2 SoC
- Various DT of_node refcount fixes
- Get rid of CLK_IS_BASIC from TI code (yay!)
- TI Autoidle clk support
- Fix Amlogic Meson8 APB clock ID name
- Claim input clocks through DT for Amlogic AXG and GXBB
- Correct the DU (display unit) parent clock on Renesas RZ/G2E
- Exynos5433 IMEM CMU crypto clk support (SlimSS)
- Fix for the PLL-MIPI on the Allwinner A23
- Fix Rockchip rk3328 PLL rate calculation
- Add SET_RATE_PARENT flag on display clk of Rockhip rk3066
- i.MX SCU clk driver clk_set_parent() and cpufreq support"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (150 commits)
dt-bindings: clock: imx8mq: Fix numbering overlaps and gaps
clk: ti: clkctrl: Fix clkdm_name regression for TI_CLK_CLKCTRL_COMPAT
clk: fixup default index for of_clk_get_by_name()
clk: Move of_clk_*() APIs into clk.c from clkdev.c
clk: Inform the core about consumer devices
clk: Introduce of_clk_get_hw_from_clkspec()
clk: core: clarify the check for runtime PM
clk: Combine __clk_get() and __clk_create_clk()
clk: imx8mq: add GPIO clocks to clock tree
clk: mediatek: correct cpu clock name for MT8173 SoC
clk: imx: Refactor entire sccg pll clk
clk: imx: scu: add cpu frequency scaling support
clk: mediatek: Mark bus and DRAM related clocks as critical
clk: mediatek: Add flags to mtk_gate
clk: mediatek: Add MUX_FLAGS macro
clk: qcom: gcc-sdm845: Define parent of PCIe PIPE clocks
clk: ingenic: Remove set but not used variable 'enable'
clk: at91: programmable: remove unneeded register read
clk: mediatek: using CLK_MUX_ROUND_CLOSEST for the clock of dpi1_sel
clk: mediatek: add MUX_GATE_FLAGS_2
...
Rafael J. Wysocki [Thu, 14 Mar 2019 09:54:28 +0000 (10:54 +0100)]
Merge branches 'acpi-tables', 'acpi-debug', 'acpi-doc' and 'acpi-misc'
* acpi-tables:
ACPI: tables: Simplify PPTT leaf node detection
* acpi-debug:
ACPI: sysfs: Prevent get_status() from returning acpi_status
* acpi-doc:
ACPI: Documentation: Fix path for acpidbg tool
* acpi-misc:
ACPI / configfs: Mark local data structures static
ACPI / configfs: Mark local functions static
Rafael J. Wysocki [Thu, 14 Mar 2019 09:53:22 +0000 (10:53 +0100)]
Merge branches 'pm-opp' and 'pm-tools'
* pm-opp:
PM / OPP: Update performance state when freq == old_freq
OPP: Fix handling of multiple power domains
* pm-tools:
tools/power/cpupower: Display boost frequency separately
Rafael J. Wysocki [Thu, 14 Mar 2019 09:53:08 +0000 (10:53 +0100)]
Merge branch 'pm-domains'
* pm-domains:
PM / domains: Remove one unnecessary blank line
PM / Domains: Return early for all errors in _genpd_power_off()
PM / Domains: Improve warn for multiple states but no governor
Rafael J. Wysocki [Thu, 14 Mar 2019 09:51:51 +0000 (10:51 +0100)]
Merge branches 'pm-cpuidle' and 'pm-cpufreq'
* pm-cpuidle:
cpuidle: governor: Add new governors to cpuidle_governors again
cpuidle: menu: Avoid overflows when computing variance
* pm-cpufreq:
cpufreq: intel_pstate: Fix up iowait_boost computation
cpufreq: pxa2xx: remove incorrect __init annotation
cpufreq: Improve kerneldoc comments for cpufreq_cpu_get/put()
Rafael J. Wysocki [Thu, 14 Mar 2019 09:51:38 +0000 (10:51 +0100)]
Merge branches 'pm-core', 'pm-sleep' and 'pm-qos'
* pm-core:
PM-runtime: Call pm_runtime_active|suspended_time() from sysfs
PM-runtime: Consolidate code to get active/suspended time
* pm-sleep:
PM / wakeup: Drop wakeup_source_drop()
PM / wakeup: Rework wakeup source timer cancellation
* pm-qos:
PM / QoS: Fix typo in file description
Kailang Yang [Thu, 14 Mar 2019 07:50:59 +0000 (15:50 +0800)]
ALSA: hda/realtek - Add support headset mode for New DELL WYSE NB
Enable headset mode support for new WYSE NB platform.
Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Kailang Yang [Thu, 14 Mar 2019 08:22:45 +0000 (16:22 +0800)]
ALSA: hda/realtek - Add support headset mode for DELL WYSE AIO
This patch will enable WYSE AIO for Headset mode.
Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Jaroslav Kysela [Thu, 14 Mar 2019 08:21:08 +0000 (09:21 +0100)]
ALSA: hda/realtek: merge alc_fixup_headset_jack to alc295_fixup_chromebook
The ALC225_FIXUP_HEADSET_JACK fixup can be merged to alc295_fixup_chromebook.
There are no other users for ALC225_FIXUP_HEADSET_JACK other than
the chromebook hardware.
Fixes:
10f5b1b85ed1 ("ALSA: hda/realtek - Fixed Headset Mic JD not stable")
Cc: Kailang Yang <kailang@realtek.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Dave Airlie [Thu, 14 Mar 2019 02:14:40 +0000 (12:14 +1000)]
Merge branch 'drm-next-5.1' of git://people.freedesktop.org/~agd5f/linux into drm-next
- Update golden regs for gfx9
- Powerplay fixes
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190313194249.3346-1-alexander.deucher@amd.com
Dave Airlie [Thu, 14 Mar 2019 01:56:59 +0000 (11:56 +1000)]
Merge tag 'drm-intel-next-fixes-2019-03-12' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
- HDCP state handling in ddi_update_pipe
- Protect i915_active iterators from the shrinker
- Reacquire priolist cache after dropping the engine lock
- (Selftest) Always free spinner on __sseu_prepare error
- Acquire breadcrumb ref before canceling
- Fix atomic state leak on HDMI link reset
- Relax mmap VMA check
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190312205551.GA7701@intel.com
Dave Airlie [Thu, 14 Mar 2019 01:37:31 +0000 (11:37 +1000)]
Merge tag 'drm-misc-next-fixes-2019-03-13' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
- qxl: Remove the conflicting framebuffers earlier
- Split out some i915 code into the fb_helper to allow the above
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190313192158.k3qssf733khsqodn@flea
Xin Long [Wed, 13 Mar 2019 09:00:48 +0000 (17:00 +0800)]
pptp: dst_release sk_dst_cache in pptp_sock_destruct
sk_setup_caps() is called to set sk->sk_dst_cache in pptp_connect,
so we have to dst_release(sk->sk_dst_cache) in pptp_sock_destruct,
otherwise, the dst refcnt will leak.
It can be reproduced by this syz log:
r1 = socket$pptp(0x18, 0x1, 0x2)
bind$pptp(r1, &(0x7f0000000100)={0x18, 0x2, {0x0, @local}}, 0x1e)
connect$pptp(r1, &(0x7f0000000000)={0x18, 0x2, {0x3, @remote}}, 0x1e)
Consecutive dmesg warnings will occur:
unregister_netdevice: waiting for lo to become free. Usage count = 1
v1->v2:
- use rcu_dereference_protected() instead of rcu_dereference_check(),
as suggested by Eric.
Fixes:
00959ade36ac ("PPTP: PPP over IPv4 (Point-to-Point Tunneling Protocol)")
Reported-by: Xiumei Mu <xmu@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Tue, 12 Mar 2019 17:50:59 +0000 (10:50 -0700)]
MAINTAINERS: GENET & SYSTEMPORT: Add internal Broadcom list
There is a patchwork instance behind bcm-kernel-feedback-list that is
helpful to track submissions, add this list for the Broadcom GENET and
SYSTEMPORT drivers.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Tue, 12 Mar 2019 13:50:11 +0000 (06:50 -0700)]
l2tp: fix infoleak in l2tp_ip6_recvmsg()
Back in 2013 Hannes took care of most of such leaks in commit
bceaa90240b6 ("inet: prevent leakage of uninitialized memory to user in recv syscalls")
But the bug in l2tp_ip6_recvmsg() has not been fixed.
syzbot report :
BUG: KMSAN: kernel-infoleak in _copy_to_user+0x16b/0x1f0 lib/usercopy.c:32
CPU: 1 PID: 10996 Comm: syz-executor362 Not tainted 5.0.0+ #11
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x173/0x1d0 lib/dump_stack.c:113
kmsan_report+0x12e/0x2a0 mm/kmsan/kmsan.c:600
kmsan_internal_check_memory+0x9f4/0xb10 mm/kmsan/kmsan.c:694
kmsan_copy_to_user+0xab/0xc0 mm/kmsan/kmsan_hooks.c:601
_copy_to_user+0x16b/0x1f0 lib/usercopy.c:32
copy_to_user include/linux/uaccess.h:174 [inline]
move_addr_to_user+0x311/0x570 net/socket.c:227
___sys_recvmsg+0xb65/0x1310 net/socket.c:2283
do_recvmmsg+0x646/0x10c0 net/socket.c:2390
__sys_recvmmsg net/socket.c:2469 [inline]
__do_sys_recvmmsg net/socket.c:2492 [inline]
__se_sys_recvmmsg+0x1d1/0x350 net/socket.c:2485
__x64_sys_recvmmsg+0x62/0x80 net/socket.c:2485
do_syscall_64+0xbc/0xf0 arch/x86/entry/common.c:291
entry_SYSCALL_64_after_hwframe+0x63/0xe7
RIP: 0033:0x445819
Code: e8 6c b6 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 2b 12 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:
00007f64453eddb8 EFLAGS:
00000246 ORIG_RAX:
000000000000012b
RAX:
ffffffffffffffda RBX:
00000000006dac28 RCX:
0000000000445819
RDX:
0000000000000005 RSI:
0000000020002f80 RDI:
0000000000000003
RBP:
00000000006dac20 R08:
0000000000000000 R09:
0000000000000000
R10:
0000000000000000 R11:
0000000000000246 R12:
00000000006dac2c
R13:
00007ffeba8f87af R14:
00007f64453ee9c0 R15:
20c49ba5e353f7cf
Local variable description: ----addr@___sys_recvmsg
Variable was created at:
___sys_recvmsg+0xf6/0x1310 net/socket.c:2244
do_recvmmsg+0x646/0x10c0 net/socket.c:2390
Bytes 0-31 of 32 are uninitialized
Memory access of size 32 starts at
ffff8880ae62fbb0
Data copied to user address
0000000020000000
Fixes:
a32e0eec7042 ("l2tp: introduce L2TPv3 IP encapsulation support for IPv6")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vakul Garg [Tue, 12 Mar 2019 08:22:57 +0000 (08:22 +0000)]
net/tls: Inform user space about send buffer availability
A previous fix ("tls: Fix write space handling") assumed that
user space application gets informed about the socket send buffer
availability when tls_push_sg() gets called. Inside tls_push_sg(), in
case do_tcp_sendpages() returns 0, the function returns without calling
ctx->sk_write_space. Further, the new function tls_sw_write_space()
did not invoke ctx->sk_write_space. This leads to situation that user
space application encounters a lockup always waiting for socket send
buffer to become available.
Rather than call ctx->sk_write_space from tls_push_sg(), it should be
called from tls_write_space. So whenever tcp stack invokes
sk->sk_write_space after freeing socket send buffer, we always declare
the same to user space by the way of invoking ctx->sk_write_space.
Fixes:
7463d3a2db0ef ("tls: Fix write space handling")
Signed-off-by: Vakul Garg <vakul.garg@nxp.com>
Reviewed-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Zhike Wang [Mon, 11 Mar 2019 10:15:54 +0000 (03:15 -0700)]
net_sched: return correct value for *notify* functions
It is confusing to directly use return value of netlink_send()/
netlink_unicast() as the return value of *notify*, as it may be not
error at all.
Example: in tc_del_tfilter(), after calling tfilter_del_notify(), it will
goto errout if (err). However, the netlink_send()/netlink_unicast() will
return positive value even for successful case. So it may not call
tcf_chain_tp_remove() and so on to clean up the resource, as a result,
resource is leaked.
It may be easier to only check the return value of tfilter_del_nofiy(),
but it is more clean to correct all related functions.
Co-developed-by: Zengmo Gao <gaozengmo@jd.com>
Signed-off-by: Zhike Wang <wangzhike@jd.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bryan Whitehead [Wed, 13 Mar 2019 19:55:48 +0000 (15:55 -0400)]
lan743x: Fix TX Stall Issue
It has been observed that tx queue may stall while downloading
from certain web sites (example www.speedtest.net)
The cause has been tracked down to a corner case where
the tx interrupt vector was disabled automatically, but
was not re enabled later.
The lan743x has two mechanisms to enable/disable individual
interrupts. Interrupts can be enabled/disabled by individual
source, and they can also be enabled/disabled by individual
vector which has been mapped to the source. Both must be
enabled for interrupts to work properly.
The TX code path, primarily uses the interrupt enable/disable of
the TX source bit, while leaving the vector enabled all the time.
However, while investigating this issue it was noticed that
the driver requested the use of the vector auto clear feature.
The test above revealed a case where the vector enable was
cleared unintentionally.
This patch fixes the issue by deleting the lines that request
the vector auto clear feature to be used.
Fixes:
23f0703c125b ("lan743x: Add main source files for new lan743x driver")
Signed-off-by: Bryan Whitehead <Bryan.Whitehead@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ricardo Biehl Pasquali [Wed, 13 Mar 2019 19:06:48 +0000 (16:06 -0300)]
ALSA: pcm: Fix function name in kernel-doc comment
Signed-off-by: Ricardo Biehl Pasquali <pasqualirb@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Jaroslav Kysela [Wed, 13 Mar 2019 16:09:23 +0000 (17:09 +0100)]
ALSA: hda: hdmi - add Icelake support
This is just a port of the ASoC Icelake HDMI codec code to the legacy
HDA driver with some cleanups.
ASoC commit
019033c854a20e10f691f6cc0e897df8817d9521:
"ASoC: Intel: hdac_hdmi: add Icelake support"
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Cc: Bard liao <bard.liao@intel.com>
Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Linus Torvalds [Wed, 13 Mar 2019 18:10:42 +0000 (11:10 -0700)]
Merge tag 'selinux-pr-
20190312' of git://git./linux/kernel/git/pcmoore/selinux
Pull selinux fixes from Paul Moore:
"Two small fixes for SELinux in v5.1: one adds a buffer length check to
the SELinux SCTP code, the other ensures that the SELinux labeling for
a NFS mount is not disabled if the filesystem is mounted twice"
* tag 'selinux-pr-
20190312' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
security/selinux: fix SECURITY_LSM_NATIVE_LABELS on reused superblock
selinux: add the missing walk_size + len check in selinux_sctp_bind_connect
Linus Torvalds [Wed, 13 Mar 2019 18:07:36 +0000 (11:07 -0700)]
Merge tag 'apparmor-pr-2019-03-12' of git://git./linux/kernel/git/jj/linux-apparmor
Pull apparmor fixes from John Johansen:
- fix double when failing to unpack secmark rules in policy
- fix leak of dentry when profile is removed
* tag 'apparmor-pr-2019-03-12' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor:
apparmor: fix double free when unpack of secmark rules fails
apparmor: delete the dentry in aafs_remove() to avoid a leak
apparmor: Fix warning about unused function apparmor_ipv6_postroute
Hans de Goede [Tue, 12 Mar 2019 14:55:54 +0000 (15:55 +0100)]
i2c: i2c-designware-platdrv: Always use a dynamic adapter number
Before this commit the i2c-designware-platdrv assumes that if the pdev
has an apci-companion it should use a dynamic adapter-nr and it sets
adapter->nr to -1, otherwise it will use pdev->id as adapter->nr.
There are 3 ways how platform_device-s to which i2c-designware-platdrv
will bind can be instantiated:
1) Through of / devicetree
2) Through ACPI enumeration
3) Explicitly instantiated through platform_device_create + add
1) In case of devicetree-instantiation the drivers/of code always sets
pdev->id to PLATFORM_DEVID_NONE, which is -1 so in this case both paths
to set adapter->nr end up doing the same thing.
2) In case of ACPI instantiation the device will always have an
ACPI-companion, so we are already using dynamic adapter-nrs.
3) There are 2 places manually instantiating a designware_i2c platform_dev:
drivers/mfd/intel_quark_i2c_gpio.c
drivers/mfd/intel-lpss.c
In the intel_quark_i2c_gpio.c case pdev->id is always 0, so switching to
dynamic adapter-nrs here could lead to the bus-number no longer being
stable, but the quark X1000 only has 1 i2c-controller, which will also
be assigned bus-number 0 when using dynamic adapter-nrs.
In the intel-lpss.c case intel_lpss_probe() is called from either
intel-lpss-acpi.c in which case there always is an ACPI-companion, or
from intel-lpss-pci.c. In most cases devices handled by intel-lpss-pci.c
also have an ACPI-companion, so we use a dynamic adapter-nr. But in some
cases the ACPI-companion is missing and we would use pdev->id (allocated
from intel_lpss_devid_ida). Devices which use the intel-lpss-pci.c code
typically have many i2c busses, so using pdev->id in this case may lead
to a bus-number conflict, triggering a WARN(id < 0, "couldn't get idr")
in i2c-core-base.c causing an oops an the adapter registration to fail.
So in this case using non dynamic adapter-nrs is actually undesirable.
One machine on which this oops was triggering is the Apollo Lake based
Acer TravelMate Spin B118.
TL;DR: Switching to always using dynamic adapter-numbers does not make
any difference in most cases and in the one case where it does make a
difference the behavior change is desirable because the old behavior
caused an oops.
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1687065
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Hans de Goede [Tue, 12 Mar 2019 14:55:53 +0000 (15:55 +0100)]
i2c: i2c-designware-platdrv: Cleanup setting of the adapter number
i2c-designware-platdrv assumes that if the pdev has an apci-companion
it should use a dynamic adapter-nr and otherwise it will use pdev->id
as adapter-nr.
Before this commit the setting of the adapter.nr was somewhat convoluted,
in the acpi_companion case it was set from dw_i2c_acpi_configure, in the
non acpi_companion case it was set from dw_i2c_set_fifo_size based on
tx_fifo_depth not being set yet indicating that dw_i2c_acpi_configure was
not executed.
This cleans this up, directly setting the adapter-nr from
dw_i2c_plat_probe for both cases.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Linus Torvalds [Wed, 13 Mar 2019 17:06:28 +0000 (10:06 -0700)]
Merge tag 'kconfig-v5.1' of git://git./linux/kernel/git/masahiroy/linux-kbuild
Pull Kconfig updates from Masahiro Yamada:
- rename lexer and parse files
- fix 'Save as' menu of xconfig
* tag 'kconfig-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kconfig: fix 'Save As' menu of xconfig
kconfig: rename zconf.y to parser.y
kconfig: rename zconf.l to lexer.l
Wolfram Sang [Tue, 12 Mar 2019 12:44:42 +0000 (13:44 +0100)]
i2c: add extra check to safe DMA buffer helper
Make sure we report 'no buffer' for 0-length messages. This can only
happen if threshold is set to 0 which is kind of bogus but we should
still handle this situation. Update the docs and add a debug message
to educate callers of this function.
Reported-by: Hsin-Yi Wang <hsinyi@chromium.org>
Fixes:
e94bc5d18be0 ("i2c: add helpers to ease DMA handling")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Linus Torvalds [Wed, 13 Mar 2019 17:01:10 +0000 (10:01 -0700)]
Merge tag 'pwm/for-5.1-rc1' of git://git./linux/kernel/git/thierry.reding/linux-pwm
Pull pwm updates from Thierry Reding:
"The changes for this cycle are across the board.
The bulk of it is cleanups, but there's also new device support in
some drivers as well as more conversions to the atomic API"
* tag 'pwm/for-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (24 commits)
pwm: atmel: Remove useless symbolic definitions
pwm: bcm-kona: Update macros to remove braces around numbers
pwm: imx27: Only enable the clocks once in .get_state()
pwm: rcar: Improve calculation of divider
pwm: rcar: Remove legacy APIs
pwm: rcar: Use "atomic" API on rcar_pwm_resume()
pwm: rcar: Add support "atomic" API
pwm: atmel: Add support for SAM9X60's PWM controller
pwm: atmel: Add PWM binding for SAM9X60
pwm: atmel: Rename objects of type atmel_pwm_data
pwm: atmel: Add support for controllers with 32 bit counters
pwm: atmel: Add struct atmel_pwm_data
pwm: Add MediaTek MT8183 display PWM driver support
pwm: hibvt: Add hi3559v100 support
dt-bindings: pwm: hibvt: Add hi3559v100 support
pwm: hibvt: Use individual struct per of-data
pwm: imx: Signedness bug in imx_pwm_get_state()
pwm: imx: Split into two drivers
pwm: imx: Don't print an error on -EPROBE_DEFER
pwm: imx: Set driver data earlier simplifying the end of ->probe()
...
Linus Torvalds [Wed, 13 Mar 2019 16:59:08 +0000 (09:59 -0700)]
Merge tag 'mailbox-v5.1' of git://git.linaro.org/landing-teams/working/fujitsu/integration
Pull mailbox updates from Jassi Brar:
- mailbox-test: support multiple controller instances
- misc cleanup: IMX, STM32 and Tegra
- new driver: ZynqMP IPI
* tag 'mailbox-v5.1' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
mailbox: imx: keep MU irq working during suspend/resume
dt-bindings: mailbox: Add Xilinx IPI Mailbox
mailbox: ZynqMP IPI mailbox controller
mailbox: stm32-ipcc: remove useless device_init_wakeup call
mailbox: stm32-ipcc: do not enable wakeup source by default
mailbox: mailbox-test: fix null pointer if no mmio
mailbox: mailbox-test: fix debugfs in multi-instances
mailbox: tegra-hsp: mark suspend function as __maybe_unused
Linus Torvalds [Wed, 13 Mar 2019 16:51:17 +0000 (09:51 -0700)]
Merge branch 'linus' of git://git./linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
"This fixes a bug in the newly added Exynos5433 AES code as well as an
old one in the caam driver"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: caam - add missing put_device() call
crypto: s5p-sss - fix AES support for Exynos5433
Linus Torvalds [Wed, 13 Mar 2019 16:41:18 +0000 (09:41 -0700)]
Merge tag 'libnvdimm-for-5.1' of git://git./linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm updates from Dan Williams:
"The bulk of this has been in -next since before the merge window
opened, with no known collisions / issues reported.
The only detail worth noting, outside the summary below, is that the
"libnvdimm-start-pad" topic has been truncated to just cleanups and
small fixes. The full topic branch would have doubled down on hacks
around the "section alignment" limitation of the core-mm, instead
effort is now being spent to address that root issue in the memory
hotplug implementation for v5.2.
- Fix nfit-bus command submission regression
- Support retrieval of short-ARS results if the ARS state is
"requires continuation", and even if the "no_init_ars" module
parameter is specified
- Allow busy-polling of the kernel ARS state by allowing root to
reset the exponential back-off timer
- Filter potentially stale ARS results by tracking query-ARS relative
to the previous start-ARS
- Enhance dax_device alignment checks
- Add support for the Hyper-V family of device-specific-methods
(DSMs)
- Add several fixes and workarounds for Hyper-V compatibility
- Fix support to cache the dirty-shutdown-count at init"
* tag 'libnvdimm-for-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (25 commits)
libnvdimm/namespace: Clean up holder_class_store()
libnvdimm/of_pmem: Fix platform_no_drv_owner.cocci warnings
acpi/nfit: Update NFIT flags error message
libnvdimm/btt: Fix LBA masking during 'free list' population
libnvdimm/btt: Remove unnecessary code in btt_freelist_init
libnvdimm/pfn: Remove dax_label_reserve
dax: Check the end of the block-device capacity with dax_direct_access()
nfit/ars: Avoid stale ARS results
nfit/ars: Allow root to busy-poll the ARS state machine
nfit/ars: Introduce scrub_flags
nfit/ars: Remove ars_start_flags
nfit/ars: Attempt short-ARS even in the no_init_ars case
nfit/ars: Attempt a short-ARS whenever the ARS state is idle at boot
acpi/nfit: Require opt-in for read-only label configurations
libnvdimm/pmem: Honor force_raw for legacy pmem regions
libnvdimm/pfn: Account for PAGE_SIZE > info-block-size in nd_pfn_init()
libnvdimm: Fix altmap reservation size calculation
libnvdimm, pfn: Fix over-trim in trim_pfn_device()
acpi/nfit: Fix bus command validation
libnvdimm/dimm: Add a no-BLK quirk based on NVDIMM family
...
Linus Torvalds [Wed, 13 Mar 2019 16:37:09 +0000 (09:37 -0700)]
Merge tag 'fsdax-for-5.1' of git://git./linux/kernel/git/nvdimm/nvdimm
Pull filesystem-dax updates from Dan Williams:
- Fix handling of PMD-sized entries in the Xarray that lead to a crash
scenario
- Miscellaneous cleanups and small fixes
* tag 'fsdax-for-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
dax: Flush partial PMDs correctly
fs/dax: NIT fix comment regarding start/end vs range
fs/dax: Convert to use vmf_error()
Linus Torvalds [Wed, 13 Mar 2019 16:34:35 +0000 (09:34 -0700)]
Merge tag 'upstream-5.1-rc1' of git://git./linux/kernel/git/rw/ubifs
Pull UBI and UBIFS updates from Richard Weinberger:
- A new interface for UBI to deal better with read disturb
- Reject unsupported ioctl flags in UBIFS (xfstests found it)
* tag 'upstream-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs:
ubi: wl: Silence uninitialized variable warning
ubifs: Reject unsupported ioctl flags explicitly
ubi: Expose the bitrot interface
ubi: Introduce in_pq()
Jaroslav Kysela [Wed, 13 Mar 2019 12:40:15 +0000 (13:40 +0100)]
ALSA: hda - add more quirks for HP Z2 G4 and HP Z240
Apply the HP_MIC_NO_PRESENCE fixups for the more HP Z2 G4 and
HP Z240 models.
Reported-by: Jeff Burrell <jeff.burrell@hp.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Kailang Yang [Thu, 21 Feb 2019 08:10:22 +0000 (16:10 +0800)]
ALSA: hda/realtek - Fixed Headset Mic JD not stable
It will be lose Mic JD state when Chrome OS boot and headset was plugged.
Implement of reset combo jack JD. It will show normally.
Fixes:
e854747d7593 ("ALSA: hda/realtek - Enable headset button support for new codec")
Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Jian-Hong Pan [Wed, 13 Mar 2019 09:33:24 +0000 (17:33 +0800)]
ALSA: hda/realtek: Enable headset MIC of Acer TravelMate X514-51T with ALC255
The Acer TravelMate X514-51T with ALC255 cannot detect the headset MIC
until ALC255_FIXUP_ACER_HEADSET_MIC quirk applied. Although, the
internal DMIC uses another module - snd_soc_skl as the driver. We still
need the NID 0x1a in the quirk to enable the headset MIC.
Signed-off-by: Jian-Hong Pan <jian-hong@endlessm.com>
Signed-off-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Arnd Bergmann [Mon, 4 Mar 2019 20:33:25 +0000 (21:33 +0100)]
ALSA: hda/tegra: avoid build error without CONFIG_PM
The #ifdef protection around the PM functions is wrong, leading to
a failed reference in some configurations:
sound/pci/hda/hda_tegra.c: In function 'hda_tegra_runtime_suspend':
sound/pci/hda/hda_tegra.c:273:2: error: implicit declaration of function 'hda_tegra_disable_clocks'; did you mean 'hda_tegra_enable_clocks'? [-Werror=implicit-function-declaration]
Better remove the #ifdefs entirely and rely on the compiler silently
dropping unused functions marked __maybe_unused.
Fixes:
707e0759f2f4 ("ALSA: hda/tegra: implement runtime suspend/resume")
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Aditya Pakki [Mon, 4 Mar 2019 23:00:02 +0000 (17:00 -0600)]
ALSA: usx2y: Fix potential NULL pointer dereference
usb_alloc_urb() can fail due to kmalloc failure and push the error
upstream. Further this can cause a NULL pointer dereference in
init_pipe_urbs(). This patch avoids such a scenario.
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Mariusz Ceier [Mon, 11 Mar 2019 20:53:57 +0000 (21:53 +0100)]
ALSA: hda: Avoid NULL pointer dereference at snd_hdac_stream_start()
For ca0132 codec, azx_dev->stream is NULL during firmware loading.
Calling snd_hdac_get_stream_stripe_ctl unconditionally causes NULL
pointer dereference in that function.
Fixes:
9b6f7e7a296e ("ALSA: hda: program stripe bits for controller")
Signed-off-by: Mariusz Ceier <mceier+kernel@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Chao Yu [Tue, 12 Mar 2019 07:44:27 +0000 (15:44 +0800)]
f2fs: fix to avoid deadlock in f2fs_read_inline_dir()
As Jiqun Li reported in bugzilla:
https://bugzilla.kernel.org/show_bug.cgi?id=202883
sometimes, dead lock when make system call SYS_getdents64 with fsync() is
called by another process.
monkey running on android9.0
1. task 9785 held sbi->cp_rwsem and waiting lock_page()
2. task 10349 held mm_sem and waiting sbi->cp_rwsem
3. task 9709 held lock_page() and waiting mm_sem
so this is a dead lock scenario.
task stack is show by crash tools as following
crash_arm64> bt
ffffffc03c354080
PID: 9785 TASK:
ffffffc03c354080 CPU: 1 COMMAND: "RxIoScheduler-3"
>> #7 [
ffffffc01b50fac0] __lock_page at
ffffff80081b11e8
crash-arm64> bt 10349
PID: 10349 TASK:
ffffffc018b83080 CPU: 1 COMMAND: "BUGLY_ASYNC_UPL"
>> #3 [
ffffffc01f8cfa40] rwsem_down_read_failed at
ffffff8008a93afc
PC:
00000033 LR:
00000000 SP:
00000000 PSTATE:
ffffffffffffffff
crash-arm64> bt 9709
PID: 9709 TASK:
ffffffc03e7f3080 CPU: 1 COMMAND: "IntentService[A"
>> #3 [
ffffffc001e67850] rwsem_down_read_failed at
ffffff8008a93afc
>> #8 [
ffffffc001e67b80] el1_ia at
ffffff8008084fc4
PC:
ffffff8008274114 [compat_filldir64+120]
LR:
ffffff80083584d4 [f2fs_fill_dentries+448]
SP:
ffffffc001e67b80 PSTATE:
80400145
X29:
ffffffc001e67b80 X28:
0000000000000000 X27:
000000000000001a
X26:
00000000000093d7 X25:
ffffffc070d52480 X24:
0000000000000008
X23:
0000000000000028 X22:
00000000d43dfd60 X21:
ffffffc001e67e90
X20:
0000000000000011 X19:
ffffff80093a4000 X18:
0000000000000000
X17:
0000000000000000 X16:
0000000000000000 X15:
0000000000000000
X14:
ffffffffffffffff X13:
0000000000000008 X12:
0101010101010101
X11:
7f7f7f7f7f7f7f7f X10:
6a6a6a6a6a6a6a6a X9:
7f7f7f7f7f7f7f7f
X8:
0000000080808000 X7:
ffffff800827409c X6:
0000000080808000
X5:
0000000000000008 X4:
00000000000093d7 X3:
000000000000001a
X2:
0000000000000011 X1:
ffffffc070d52480 X0:
0000000000800238
>> #9 [
ffffffc001e67be0] f2fs_fill_dentries at
ffffff80083584d0
PC:
0000003c LR:
00000000 SP:
00000000 PSTATE:
000000d9
X12:
f48a02ff X11:
d4678960 X10:
d43dfc00 X9:
d4678ae4
X8:
00000058 X7:
d4678994 X6:
d43de800 X5:
000000d9
X4:
d43dfc0c X3:
d43dfc10 X2:
d46799c8 X1:
00000000
X0:
00001068
Below potential deadlock will happen between three threads:
Thread A Thread B Thread C
- f2fs_do_sync_file
- f2fs_write_checkpoint
- down_write(&sbi->node_change) -- 1)
- do_page_fault
- down_write(&mm->mmap_sem) -- 2)
- do_wp_page
- f2fs_vm_page_mkwrite
- getdents64
- f2fs_read_inline_dir
- lock_page -- 3)
- f2fs_sync_node_pages
- lock_page -- 3)
- __do_map_lock
- down_read(&sbi->node_change) -- 1)
- f2fs_fill_dentries
- dir_emit
- compat_filldir64
- do_page_fault
- down_read(&mm->mmap_sem) -- 2)
Since f2fs_readdir is protected by inode.i_rwsem, there should not be
any updates in inode page, we're safe to lookup dents in inode page
without its lock held, so taking off the lock to improve concurrency
of readdir and avoid potential deadlock.
Reported-by: Jiqun Li <jiqun.li@unisoc.com>
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Chao Yu [Tue, 5 Mar 2019 11:32:26 +0000 (19:32 +0800)]
f2fs: fix to adapt small inline xattr space in __find_inline_xattr()
With below testcase, we will fail to find existed xattr entry:
1. mkfs.f2fs -O extra_attr -O flexible_inline_xattr /dev/zram0
2. mount -t f2fs -o inline_xattr_size=1 /dev/zram0 /mnt/f2fs/
3. touch /mnt/f2fs/file
4. setfattr -n "user.name" -v 0 /mnt/f2fs/file
5. getfattr -n "user.name" /mnt/f2fs/file
/mnt/f2fs/file: user.name: No such attribute
The reason is for inode which has very small inline xattr size,
__find_inline_xattr() will fail to traverse any entry due to first
entry may not be loaded from xattr node yet, later, we may skip to
check entire xattr datas in __find_xattr(), result in such wrong
condition.
This patch adds condition to check such case to avoid this issue.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Chao Yu [Mon, 4 Mar 2019 09:19:04 +0000 (17:19 +0800)]
f2fs: fix to do sanity check with inode.i_inline_xattr_size
As Paul Bandha reported in bugzilla:
https://bugzilla.kernel.org/show_bug.cgi?id=202709
When I run the poc on the mounted f2fs img I get a buffer overflow in
read_inline_xattr due to there being no sanity check on the value of
i_inline_xattr_size.
I created the img by just modifying the value of i_inline_xattr_size
in the inode:
i_name [test1.txt]
i_ext: fofs:0 blkaddr:0 len:0
i_extra_isize [0x 18 : 24]
i_inline_xattr_size [0x ffff : 65535]
i_addr[ofs] [0x 0 : 0]
mkdir /mnt/f2fs
mount ./f2fs1.img /mnt/f2fs
gcc poc.c -o poc
./poc
int main() {
int y = syscall(SYS_listxattr, "/mnt/f2fs/test1.txt", NULL, 0);
printf("ret %d", y);
printf("errno: %d\n", errno);
}
BUG: KASAN: slab-out-of-bounds in read_inline_xattr+0x18f/0x260
Read of size 262140 at addr
ffff88011035efd8 by task f2fs1poc/3263
CPU: 0 PID: 3263 Comm: f2fs1poc Not tainted 4.18.0-custom #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.11.1-0-g0551a4be2c-prebuilt.qemu-project.org 04/01/2014
Call Trace:
dump_stack+0x71/0xab
print_address_description+0x83/0x250
kasan_report+0x213/0x350
memcpy+0x1f/0x50
read_inline_xattr+0x18f/0x260
read_all_xattrs+0xba/0x190
f2fs_listxattr+0x9d/0x3f0
listxattr+0xb2/0xd0
path_listxattr+0x93/0xe0
do_syscall_64+0x9d/0x220
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Let's add sanity check for inode.i_inline_xattr_size during f2fs_iget()
to avoid this issue.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Jaegeuk Kim [Tue, 12 Mar 2019 18:49:53 +0000 (11:49 -0700)]
f2fs: give some messages for inline_xattr_size
This patch adds some kernel messages when user sets wrong inline_xattr_size.
Fixes:
500e0b28ecd3 ("f2fs: fix to check inline_xattr_size boundary correctly")
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Chao Yu [Thu, 7 Mar 2019 09:31:30 +0000 (17:31 +0800)]
f2fs: don't trigger read IO for beyond EOF page
In f2fs_mpage_readpages(), if page is beyond EOF, we should just
zero out it, but previously, before checking previous mapping
info, we missed to check filesize boundary, fix it.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Chao Yu [Wed, 6 Mar 2019 09:30:59 +0000 (17:30 +0800)]
f2fs: fix to add refcount once page is tagged PG_private
As Gao Xiang reported in bugzilla:
https://bugzilla.kernel.org/show_bug.cgi?id=202749
f2fs may skip pageout() due to incorrect page reference count.
The problem here is that MM defined the rule [1] very clearly that
once page was set with PG_private flag, we should increment the
refcount in that page, also main flows like pageout(), migrate_page()
will assume there is one additional page reference count if
page_has_private() returns true.
But currently, f2fs won't add/del refcount when changing PG_private
flag. Anyway, f2fs should follow MM's rule to make MM's related flows
running as expected.
[1] https://lore.kernel.org/lkml/
2b19b3c4-2bc4-15fa-15cc-
27a13e5c7af1@aol.com/
Reported-by: Gao Xiang <gaoxiang25@huawei.com>
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Chao Yu [Wed, 6 Mar 2019 08:18:33 +0000 (16:18 +0800)]
f2fs: remove wrong comment in f2fs_invalidate_page()
Since
8c242db9b8c0 ("f2fs: fix stale ATOMIC_WRITTEN_PAGE private pointer"),
we've started to not skip clear private flag for atomic_write page
truncation, so removing old wrong comment in f2fs_invalidate_page().
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Chao Yu [Tue, 5 Mar 2019 09:52:33 +0000 (17:52 +0800)]
f2fs: fix to use kvfree instead of kzfree
As Jiqun Li reported in bugzilla:
https://bugzilla.kernel.org/show_bug.cgi?id=202747
System can panic due to using wrong allocate/free function pair
in xattr interface:
- use kvmalloc to allocate memory
- use kzfree to free memory
Let's fix to use kvfree instead of kzfree, BTW, we are safe to
get rid of kzfree, since there is no such confidential data stored
as xattr, we don't need to zero it before free memory.
Fixes:
5222595d093e ("f2fs: use kvmalloc, if kmalloc is failed")
Reported-by: Jiqun Li <jiqun.li@unisoc.com>
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Chao Yu [Tue, 26 Feb 2019 11:01:16 +0000 (19:01 +0800)]
f2fs: print more parameters in trace_f2fs_map_blocks
for better map_blocks trace.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Chao Yu [Tue, 26 Feb 2019 11:01:15 +0000 (19:01 +0800)]
f2fs: trace f2fs_ioc_shutdown
This patch supports to trace f2fs_ioc_shutdown.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Chao Yu [Mon, 25 Feb 2019 09:11:03 +0000 (17:11 +0800)]
f2fs: fix to avoid deadlock of atomic file operations
Thread A Thread B
- __fput
- f2fs_release_file
- drop_inmem_pages
- mutex_lock(&fi->inmem_lock)
- __revoke_inmem_pages
- lock_page(page)
- open
- f2fs_setattr
- truncate_setsize
- truncate_inode_pages_range
- lock_page(page)
- truncate_cleanup_page
- f2fs_invalidate_page
- drop_inmem_page
- mutex_lock(&fi->inmem_lock);
We may encounter above ABBA deadlock as reported by Kyungtae Kim:
I'm reporting a bug in linux-4.17.19: "INFO: task hung in
drop_inmem_page" (no reproducer)
I think this might be somehow related to the following:
https://groups.google.com/forum/#!searchin/syzkaller-bugs/INFO$3A$20task$20hung$20in$20%7Csort:date/syzkaller-bugs/c6soBTrdaIo/AjAzPeIzCgAJ
=========================================
INFO: task syz-executor7:10822 blocked for more than 120 seconds.
Not tainted 4.17.19 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor7 D27024 10822 6346 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2867 [inline]
__schedule+0x721/0x1e60 kernel/sched/core.c:3515
schedule+0x88/0x1c0 kernel/sched/core.c:3559
schedule_preempt_disabled+0x18/0x30 kernel/sched/core.c:3617
__mutex_lock_common kernel/locking/mutex.c:833 [inline]
__mutex_lock+0x5bd/0x1410 kernel/locking/mutex.c:893
mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:908
drop_inmem_page+0xcb/0x810 fs/f2fs/segment.c:327
f2fs_invalidate_page+0x337/0x5e0 fs/f2fs/data.c:2401
do_invalidatepage mm/truncate.c:165 [inline]
truncate_cleanup_page+0x261/0x330 mm/truncate.c:187
truncate_inode_pages_range+0x552/0x1610 mm/truncate.c:367
truncate_inode_pages mm/truncate.c:478 [inline]
truncate_pagecache+0x6d/0x90 mm/truncate.c:801
truncate_setsize+0x81/0xa0 mm/truncate.c:826
f2fs_setattr+0x44f/0x1270 fs/f2fs/file.c:781
notify_change+0xa62/0xe80 fs/attr.c:313
do_truncate+0x12e/0x1e0 fs/open.c:63
do_last fs/namei.c:2955 [inline]
path_openat+0x2042/0x29f0 fs/namei.c:3505
do_filp_open+0x1bd/0x2c0 fs/namei.c:3540
do_sys_open+0x35e/0x4e0 fs/open.c:1101
__do_sys_open fs/open.c:1119 [inline]
__se_sys_open fs/open.c:1114 [inline]
__x64_sys_open+0x89/0xc0 fs/open.c:1114
do_syscall_64+0xc4/0x4e0 arch/x86/entry/common.c:287
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4497b9
RSP: 002b:
00007f734e459c68 EFLAGS:
00000246 ORIG_RAX:
0000000000000002
RAX:
ffffffffffffffda RBX:
00007f734e45a6cc RCX:
00000000004497b9
RDX:
0000000000000104 RSI:
00000000000a8280 RDI:
0000000020000080
RBP:
000000000071bea0 R08:
0000000000000000 R09:
0000000000000000
R10:
0000000000000000 R11:
0000000000000246 R12:
00000000ffffffff
R13:
0000000000007230 R14:
00000000006f02d0 R15:
00007f734e45a700
INFO: task syz-executor7:10858 blocked for more than 120 seconds.
Not tainted 4.17.19 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor7 D28880 10858 6346 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2867 [inline]
__schedule+0x721/0x1e60 kernel/sched/core.c:3515
schedule+0x88/0x1c0 kernel/sched/core.c:3559
__rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:565 [inline]
rwsem_down_write_failed+0x5e6/0xc90 kernel/locking/rwsem-xadd.c:594
call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117
__down_write arch/x86/include/asm/rwsem.h:142 [inline]
down_write+0x58/0xa0 kernel/locking/rwsem.c:72
inode_lock include/linux/fs.h:713 [inline]
do_truncate+0x120/0x1e0 fs/open.c:61
do_last fs/namei.c:2955 [inline]
path_openat+0x2042/0x29f0 fs/namei.c:3505
do_filp_open+0x1bd/0x2c0 fs/namei.c:3540
do_sys_open+0x35e/0x4e0 fs/open.c:1101
__do_sys_open fs/open.c:1119 [inline]
__se_sys_open fs/open.c:1114 [inline]
__x64_sys_open+0x89/0xc0 fs/open.c:1114
do_syscall_64+0xc4/0x4e0 arch/x86/entry/common.c:287
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4497b9
RSP: 002b:
00007f734e3b4c68 EFLAGS:
00000246 ORIG_RAX:
0000000000000002
RAX:
ffffffffffffffda RBX:
00007f734e3b56cc RCX:
00000000004497b9
RDX:
0000000000000104 RSI:
00000000000a8280 RDI:
0000000020000080
RBP:
000000000071c238 R08:
0000000000000000 R09:
0000000000000000
R10:
0000000000000000 R11:
0000000000000246 R12:
00000000ffffffff
R13:
0000000000007230 R14:
00000000006f02d0 R15:
00007f734e3b5700
INFO: task syz-executor5:10829 blocked for more than 120 seconds.
Not tainted 4.17.19 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor5 D28760 10829 6308 0x80000002
Call Trace:
context_switch kernel/sched/core.c:2867 [inline]
__schedule+0x721/0x1e60 kernel/sched/core.c:3515
schedule+0x88/0x1c0 kernel/sched/core.c:3559
io_schedule+0x21/0x80 kernel/sched/core.c:5179
wait_on_page_bit_common mm/filemap.c:1100 [inline]
__lock_page+0x2b5/0x390 mm/filemap.c:1273
lock_page include/linux/pagemap.h:483 [inline]
__revoke_inmem_pages+0xb35/0x11c0 fs/f2fs/segment.c:231
drop_inmem_pages+0xa3/0x3e0 fs/f2fs/segment.c:306
f2fs_release_file+0x2c7/0x330 fs/f2fs/file.c:1556
__fput+0x2c7/0x780 fs/file_table.c:209
____fput+0x1a/0x20 fs/file_table.c:243
task_work_run+0x151/0x1d0 kernel/task_work.c:113
exit_task_work include/linux/task_work.h:22 [inline]
do_exit+0x8ba/0x30a0 kernel/exit.c:865
do_group_exit+0x13b/0x3a0 kernel/exit.c:968
get_signal+0x6bb/0x1650 kernel/signal.c:2482
do_signal+0x84/0x1b70 arch/x86/kernel/signal.c:810
exit_to_usermode_loop+0x155/0x190 arch/x86/entry/common.c:162
prepare_exit_to_usermode arch/x86/entry/common.c:196 [inline]
syscall_return_slowpath arch/x86/entry/common.c:265 [inline]
do_syscall_64+0x445/0x4e0 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4497b9
RSP: 002b:
00007f1c68e74ce8 EFLAGS:
00000246 ORIG_RAX:
00000000000000ca
RAX:
fffffffffffffe00 RBX:
000000000071bf80 RCX:
00000000004497b9
RDX:
0000000000000000 RSI:
0000000000000000 RDI:
000000000071bf80
RBP:
000000000071bf80 R08:
0000000000000000 R09:
000000000071bf58
R10:
0000000000000000 R11:
0000000000000246 R12:
0000000000000000
R13:
0000000000000000 R14:
00007f1c68e759c0 R15:
00007f1c68e75700
This patch tries to use trylock_page to mitigate such deadlock condition
for fix.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Chao Yu [Sat, 23 Feb 2019 01:48:27 +0000 (09:48 +0800)]
f2fs: fix to dirty inode for i_mode recovery
As Seulbae Kim reported in bugzilla:
https://bugzilla.kernel.org/show_bug.cgi?id=202637
We didn't recover permission field correctly after sudden power-cut,
the reason is in setattr we didn't add inode into global dirty list
once i_mode is changed, so latter checkpoint triggered by fsync will
not flush last i_mode into disk, result in this problem, fix it.
Reported-by: Seulbae Kim <seulbae@gatech.edu>
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Jaegeuk Kim [Mon, 25 Feb 2019 17:46:45 +0000 (09:46 -0800)]
f2fs: give random value to i_generation
This follows to give random number to i_generation along with commit
232530680290b ("ext4: improve smp scalability for inode generation")
This can be used for DUN for UFS HW encryption.
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Gao Xiang [Thu, 21 Feb 2019 04:57:35 +0000 (12:57 +0800)]
f2fs: no need to take page lock in readdir
VFS will take inode_lock for readdir, therefore no need to
take page lock in readdir at all just as the majority of
other generic filesystems.
This patch improves concurrency since .iterate_shared
was introduced to VFS years ago.
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Chao Yu [Thu, 21 Feb 2019 12:40:13 +0000 (20:40 +0800)]
f2fs: fix to update iostat correctly in IPU path
In error path of IPU, we didn't account iostat correctly, fix it.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Chao Yu [Thu, 21 Feb 2019 12:37:14 +0000 (20:37 +0800)]
f2fs: fix encrypted page memory leak
For IPU path of f2fs_do_write_data_page(), in its error path, we
need to release encrypted page and fscrypt context, otherwise it
will cause memory leak.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Chao Yu [Tue, 19 Feb 2019 09:08:18 +0000 (17:08 +0800)]
f2fs: make fault injection covering __submit_flush_wait()
This patch changes to allow failure of f2fs_bio_alloc() in
__submit_flush_wait(), which can simulate flush error in checkpoint()
for covering more error paths.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Chao Yu [Tue, 19 Feb 2019 08:23:53 +0000 (16:23 +0800)]
f2fs: fix to retry fill_super only if recovery failed
With current retry mechanism in f2fs_fill_super, first fill_super
fails due to no memory, then second fill_super runs w/o recovery,
if we succeed, we may lose fsynced data, it doesn't make sense.
Let's retry fill_super only if it occurs non-ENOMEM error during
recovery.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Gao Xiang [Tue, 19 Feb 2019 02:31:52 +0000 (10:31 +0800)]
f2fs: silence VM_WARN_ON_ONCE in mempool_alloc
Note that __GFP_ZERO is not supported for mempool_alloc,
which also documented in the mempool_alloc comments.
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Zeng Guangyue [Mon, 18 Feb 2019 06:26:41 +0000 (14:26 +0800)]
f2fs: correct spelling mistake
correct spelling mistake for "nunmber"
Signed-off-by: Zeng Guangyue <zengguangyue@hisilicon.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Jaegeuk Kim [Sat, 16 Feb 2019 03:04:38 +0000 (19:04 -0800)]
f2fs: fix wrong #endif
We have to cover whole headerfile with last #endif.
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Stephen Rothwell [Fri, 22 Feb 2019 05:14:45 +0000 (16:14 +1100)]
remoteproc: fix for "dma-mapping: remove the DMA_MEMORY_EXCLUSIVE flag"
The commit
82c5de0ab8db ("dma-mapping: remove the DMA_MEMORY_EXCLUSIVE
flag") removed the "flags" parameter for dma_declare_coherent_memory().
Remove the parameter from the call in rproc_add_virtio_dev().
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
[bjorn: Extended commit message]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Rafael J. Wysocki [Tue, 12 Mar 2019 18:13:13 +0000 (19:13 +0100)]
cpuidle: governor: Add new governors to cpuidle_governors again
After commit
61cb5758d3c4 ("cpuidle: Add cpuidle.governor= command
line parameter") new cpuidle governors are not added to the list
of available governors, so governor selection via sysfs doesn't
work as expected (even though it is rarely used anyway).
Fix that by making cpuidle_register_governor() add new governors to
cpuidle_governors again.
Fixes:
61cb5758d3c4 ("cpuidle: Add cpuidle.governor= command line parameter")
Reported-by: Kees Cook <keescook@chromium.org>
Cc: 5.0+ <stable@vger.kernel.org> # 5.0+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Linus Torvalds [Tue, 12 Mar 2019 22:06:54 +0000 (15:06 -0700)]
Merge tag 'nfsd-5.1' of git://linux-nfs.org/~bfields/linux
Pull NFS server updates from Bruce Fields:
"Miscellaneous NFS server fixes.
Probably the most visible bug is one that could artificially limit
NFSv4.1 performance by limiting the number of oustanding rpcs from a
single client.
Neil Brown also gets a special mention for fixing a 14.5-year-old
memory-corruption bug in the encoding of NFSv3 readdir responses"
* tag 'nfsd-5.1' of git://linux-nfs.org/~bfields/linux:
nfsd: allow nfsv3 readdir request to be larger.
nfsd: fix wrong check in write_v4_end_grace()
nfsd: fix memory corruption caused by readdir
nfsd: fix performance-limiting session calculation
svcrpc: fix UDP on servers with lots of threads
svcrdma: Remove syslog warnings in work completion handlers
svcrdma: Squelch compiler warning when SUNRPC_DEBUG is disabled
svcrdma: Use struct_size() in kmalloc()
svcrpc: fix unlikely races preventing queueing of sockets
svcrpc: svc_xprt_has_something_to_do seems a little long
SUNRPC: Don't allow compiler optimisation of svc_xprt_release_slot()
nfsd: fix an IS_ERR() vs NULL check
Linus Torvalds [Tue, 12 Mar 2019 22:03:21 +0000 (15:03 -0700)]
Merge tag 'ext4_for_linus' of git://git./linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o:
"A large number of bug fixes and cleanups.
One new feature to allow users to more easily find the jbd2 journal
thread for a particular ext4 file system"
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (25 commits)
jbd2: jbd2_get_transaction does not need to return a value
jbd2: fix invalid descriptor block checksum
ext4: fix bigalloc cluster freeing when hole punching under load
ext4: add sysfs attr /sys/fs/ext4/<disk>/journal_task
ext4: Change debugging support help prefix from EXT4 to Ext4
ext4: fix compile error when using BUFFER_TRACE
jbd2: fix compile warning when using JBUFFER_TRACE
ext4: fix some error pointer dereferences
ext4: annotate more implicit fall throughs
ext4: annotate implicit fall throughs
ext4: don't update s_rev_level if not required
jbd2: fold jbd2_superblock_csum_{verify,set} into their callers
jbd2: fix race when writing superblock
ext4: fix crash during online resizing
ext4: disallow files with EXT4_JOURNAL_DATA_FL from EXT4_IOC_SWAP_BOOT
ext4: add mask of ext4 flags to swap
ext4: update quota information while swapping boot loader inode
ext4: cleanup pagecache before swap i_data
ext4: fix check of inode in swap_inode_boot_loader
ext4: unlock unused_pages timely when doing writeback
...
David S. Miller [Tue, 12 Mar 2019 22:00:15 +0000 (15:00 -0700)]
Merge branch 'mlx4-fixes'
Tariq Toukan says:
====================
mlx4_core misc fixes
This patchset by Jack contains misc fixes to the mlx4 Core driver.
Patch 1 fixes a use-after-free situation by marking (nullifying) the pointer,
please queue for -stable >= v4.0.
Patch 2 adds a missing lock acquire and release in SRIOV command interface,
please queue for -stable >= v4.9.
Patch 3 avoids calling roundup_pow_of_two when argument is zero,
please queue for -stable >= v3.3.
Series generated against net commit:
a3b1933d34d5 Merge tag 'mlx5-fixes-2019-03-11' of
git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Jack Morgenstein [Tue, 12 Mar 2019 15:05:49 +0000 (17:05 +0200)]
net/mlx4_core: Fix qp mtt size calculation
Calculation of qp mtt size (in function mlx4_RST2INIT_wrapper)
ultimately depends on function roundup_pow_of_two.
If the amount of memory required by the QP is less than one page,
roundup_pow_of_two is called with argument zero. In this case, the
roundup_pow_of_two result is undefined.
Calling roundup_pow_of_two with a zero argument resulted in the
following stack trace:
UBSAN: Undefined behaviour in ./include/linux/log2.h:61:13
shift exponent 64 is too large for 64-bit type 'long unsigned int'
CPU: 4 PID: 26939 Comm: rping Tainted: G OE 4.19.0-rc1
Hardware name: Supermicro X9DR3-F/X9DR3-F, BIOS 3.2a 07/09/2015
Call Trace:
dump_stack+0x9a/0xeb
ubsan_epilogue+0x9/0x7c
__ubsan_handle_shift_out_of_bounds+0x254/0x29d
? __ubsan_handle_load_invalid_value+0x180/0x180
? debug_show_all_locks+0x310/0x310
? sched_clock+0x5/0x10
? sched_clock+0x5/0x10
? sched_clock_cpu+0x18/0x260
? find_held_lock+0x35/0x1e0
? mlx4_RST2INIT_QP_wrapper+0xfb1/0x1440 [mlx4_core]
mlx4_RST2INIT_QP_wrapper+0xfb1/0x1440 [mlx4_core]
Fix this by explicitly testing for zero, and returning one if the
argument is zero (assuming that the next higher power of 2 in this case
should be one).
Fixes:
c82e9aa0a8bc ("mlx4_core: resource tracking for HCA resources used by guests")
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jack Morgenstein [Tue, 12 Mar 2019 15:05:48 +0000 (17:05 +0200)]
net/mlx4_core: Fix locking in SRIOV mode when switching between events and polling
In procedures mlx4_cmd_use_events() and mlx4_cmd_use_polling(), we need to
guarantee that there are no FW commands in progress on the comm channel
(for VFs) or wrapped FW commands (on the PF) when SRIOV is active.
We do this by also taking the slave_cmd_mutex when SRIOV is active.
This is especially important when switching from event to polling, since we
free the command-context array during the switch. If there are FW commands
in progress (e.g., waiting for a completion event), the completion event
handler will access freed memory.
Since the decision to use comm_wait or comm_poll is taken before grabbing
the event_sem/poll_sem in mlx4_comm_cmd_wait/poll, we must take the
slave_cmd_mutex as well (to guarantee that the decision to use events or
polling and the call to the appropriate cmd function are atomic).
Fixes:
a7e1f04905e5 ("net/mlx4_core: Fix deadlock when switching between polling and event fw commands")
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jack Morgenstein [Tue, 12 Mar 2019 15:05:47 +0000 (17:05 +0200)]
net/mlx4_core: Fix reset flow when in command polling mode
As part of unloading a device, the driver switches from
FW command event mode to FW command polling mode.
Part of switching over to polling mode is freeing the command context array
memory (unfortunately, currently, without NULLing the command context array
pointer).
The reset flow calls "complete" to complete all outstanding fw commands
(if we are in event mode). The check for event vs. polling mode here
is to test if the command context array pointer is NULL.
If the reset flow is activated after the switch to polling mode, it will
attempt (incorrectly) to complete all the commands in the context array --
because the pointer was not NULLed when the driver switched over to polling
mode.
As a result, we have a use-after-free situation, which results in a
kernel crash.
For example:
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<
ffffffff876c4a8e>] __wake_up_common+0x2e/0x90
PGD 0
Oops: 0000 [#1] SMP
Modules linked in: netconsole nfsv3 nfs_acl nfs lockd grace ...
CPU: 2 PID: 940 Comm: kworker/2:3 Kdump: loaded Not tainted 3.10.0-862.el7.x86_64 #1
Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS 090006 04/28/2016
Workqueue: events hv_eject_device_work [pci_hyperv]
task:
ffff8d1734ca0fd0 ti:
ffff8d17354bc000 task.ti:
ffff8d17354bc000
RIP: 0010:[<
ffffffff876c4a8e>] [<
ffffffff876c4a8e>] __wake_up_common+0x2e/0x90
RSP: 0018:
ffff8d17354bfa38 EFLAGS:
00010082
RAX:
0000000000000000 RBX:
ffff8d17362d42c8 RCX:
0000000000000000
RDX:
0000000000000001 RSI:
0000000000000003 RDI:
ffff8d17362d42c8
RBP:
ffff8d17354bfa70 R08:
0000000000000000 R09:
0000000000000000
R10:
0000000000000298 R11:
ffff8d173610e000 R12:
ffff8d17362d42d0
R13:
0000000000000246 R14:
0000000000000000 R15:
0000000000000003
FS:
0000000000000000(0000) GS:
ffff8d1802680000(0000) knlGS:
0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
CR2:
0000000000000000 CR3:
00000000f16d8000 CR4:
00000000001406e0
Call Trace:
[<
ffffffff876c7adc>] complete+0x3c/0x50
[<
ffffffffc04242f0>] mlx4_cmd_wake_completions+0x70/0x90 [mlx4_core]
[<
ffffffffc041e7b1>] mlx4_enter_error_state+0xe1/0x380 [mlx4_core]
[<
ffffffffc041fa4b>] mlx4_comm_cmd+0x29b/0x360 [mlx4_core]
[<
ffffffffc041ff51>] __mlx4_cmd+0x441/0x920 [mlx4_core]
[<
ffffffff877f62b1>] ? __slab_free+0x81/0x2f0
[<
ffffffff87951384>] ? __radix_tree_lookup+0x84/0xf0
[<
ffffffffc043a8eb>] mlx4_free_mtt_range+0x5b/0xb0 [mlx4_core]
[<
ffffffffc043a957>] mlx4_mtt_cleanup+0x17/0x20 [mlx4_core]
[<
ffffffffc04272c7>] mlx4_free_eq+0xa7/0x1c0 [mlx4_core]
[<
ffffffffc042803e>] mlx4_cleanup_eq_table+0xde/0x130 [mlx4_core]
[<
ffffffffc0433e08>] mlx4_unload_one+0x118/0x300 [mlx4_core]
[<
ffffffffc0434191>] mlx4_remove_one+0x91/0x1f0 [mlx4_core]
The fix is to set the command context array pointer to NULL after freeing
the array.
Fixes:
f5aef5aa3506 ("net/mlx4_core: Activate reset flow upon fatal command cases")
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Tue, 12 Mar 2019 21:58:35 +0000 (14:58 -0700)]
Merge tag 'ceph-for-5.1-rc1' of git://github.com/ceph/ceph-client
Pull ceph updates from Ilya Dryomov:
"The highlights are:
- rbd will now ignore discards that aren't aligned and big enough to
actually free up some space (myself). This is controlled by the new
alloc_size map option and can be disabled if needed.
- support for rbd deep-flatten feature (myself). Deep-flatten allows
"rbd flatten" to fully disconnect the clone image and its snapshots
from the parent and make the parent snapshot removable.
- a new round of cap handling improvements (Zheng Yan). The kernel
client should now be much more prompt about releasing its caps and
it is possible to put a limit on the number of caps held.
- support for getting ceph.dir.pin extended attribute (Zheng Yan)"
* tag 'ceph-for-5.1-rc1' of git://github.com/ceph/ceph-client: (26 commits)
Documentation: modern versions of ceph are not backed by btrfs
rbd: advertise support for RBD_FEATURE_DEEP_FLATTEN
rbd: whole-object write and zeroout should copyup when snapshots exist
rbd: copyup with an empty snapshot context (aka deep-copyup)
rbd: introduce rbd_obj_issue_copyup_ops()
rbd: stop copying num_osd_ops in rbd_obj_issue_copyup()
rbd: factor out __rbd_osd_req_create()
rbd: clear ->xferred on error from rbd_obj_issue_copyup()
rbd: remove experimental designation from kernel layering
ceph: add mount option to limit caps count
ceph: periodically trim stale dentries
ceph: delete stale dentry when last reference is dropped
ceph: remove dentry_lru file from debugfs
ceph: touch existing cap when handling reply
ceph: pass inclusive lend parameter to filemap_write_and_wait_range()
rbd: round off and ignore discards that are too small
rbd: handle DISCARD and WRITE_ZEROES separately
rbd: get rid of obj_req->obj_request_count
libceph: use struct_size() for kmalloc() in crush_decode()
ceph: send cap releases more aggressively
...
David S. Miller [Tue, 12 Mar 2019 21:55:16 +0000 (14:55 -0700)]
Merge branch 'mlxsw-Various-fixes'
Ido Schimmel says:
====================
mlxsw: Various fixes
Patch #1 fixes the recently introduced QSFP thermal zones to correctly
work with split ports, where several ports are mapped to the same
module.
Patch #2 initializes the base MAC in the minimal driver. The driver is
using the base MAC as its parent ID and without initializing it, it is
reported as all zeroes to user space.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Tue, 12 Mar 2019 08:40:42 +0000 (08:40 +0000)]
mlxsw: minimal: Initialize base_mac
Currently base_mac is not initialized which causes wrong reporting of
zeroed parent_id to userspace. Fix this by initializing base_mac
properly.
Fixes:
c100e47caa8e ("mlxsw: minimal: Add ethtool support")
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vadim Pasternak [Tue, 12 Mar 2019 08:40:41 +0000 (08:40 +0000)]
mlxsw: core: Prevent duplication during QSFP module initialization
Verify during thermal initialization if QSFP module's entry is already
configured in order to prevent duplication.
Such scenario could happen in case two switch drivers (PCI and I2C
based) coexist and if after boot, splitting configuration is applied
for some ports and then I2C based driver is re-probed.
In such case after reboot same QSFP module, associated with split will
be discovered by I2C based driver few times, and it will cause a crash.
It could happen for example on system equipped with BMC (Baseboard
Management Controller), running I2C based driver, when the next steps
are performed:
- System boot
- Host side configures port spilt.
- BMC side is rebooted.
Fixes:
6a79507cfe94 ("mlxsw: core: Extend thermal module with per QSFP module thermal zones")
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Tue, 12 Mar 2019 21:53:57 +0000 (14:53 -0700)]
Merge tag 'for-5.1-part2-tag' of git://git./linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"Correctness and a deadlock fixes"
* tag 'for-5.1-part2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: zstd: ensure reclaim timer is properly cleaned up
btrfs: move ulist allocation out of transaction in quota enable
btrfs: save drop_progress if we drop refs at all
btrfs: check for refs on snapshot delete resume
Btrfs: fix deadlock between clone/dedupe and rename
Btrfs: fix corruption reading shared and compressed extents after hole punching
Kangjie Lu [Tue, 12 Mar 2019 07:50:40 +0000 (02:50 -0500)]
net: dwmac-sun8i: fix a missing check of of_get_phy_mode
of_get_phy_mode may fail and return a negative error code;
the fix checks the return value of of_get_phy_mode and
returns -EINVAL of it fails.
Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>