io_pgetevents() will not change the signal mask.  Mark it const to make
it clear and to reduce the need for casts in user code.
Reviewed-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NAvi Kivity <avi@scylladb.com>
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
[hch: reapply the patch that got incorrectly reverted]
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The big aio poll revert broke various network protocols that don't
implement ->poll as a patch in the aio poll serie removed sock_no_poll
and made the common code handle this case.

Reported-by: syzbot+57727883dbad76db2ef0@syzkaller.appspotmail.com
Reported-by: syzbot+cdb0d3176b53d35ad454@syzkaller.appspotmail.com
Reported-by: syzbot+2c7e8f74f8b2571c87e8@syzkaller.appspotmail.com
Reported-by: NTetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Fixes: a11e1d43 ("Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL")
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Pull printk fix from Petr Mladek:
 "Revert a commit that went in by mistake. I already have a better fix
  in the queue for 4.19"

* tag 'printk-for-4.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk:
  Revert "lib/test_printf.c: call wait_for_random_bytes() before plain %p tests"

Pull sound fixes from Takashi Iwai:
 "Over a dozen changes, but all small and clear fixes.

  Half of them are the regression fixes for CA0132 HD-audio codec, and
  the rest are, again, a few more fixups for HD-audio, two UBSAN fixes
  in the core ioctls, and a trivial fix in the error path handling in
  lx6464es driver"

* tag 'sound-4.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: seq: Fix UBSAN warning at SNDRV_SEQ_IOCTL_QUERY_NEXT_CLIENT ioctl
  ALSA: timer: Fix UBSAN warning at SNDRV_TIMER_IOCTL_NEXT_DEVICE ioctl
  ALSA: hda/realtek - Fix the problem of two front mics on more machines
  ALSA: hda/realtek - Add a quirk for FSC ESPRIMO U9210
  ALSA: hda/ca0132: make array ca0132_alt_chmaps static
  ALSA: hda - Force to link down at runtime suspend on ATI/AMD HDMI
  ALSA: lx6464es: Missing error code in snd_lx6464es_create()
  ALSA: hda/ca0132: Fix DMic data rate for Alienware M17x R4
  ALSA: hda/ca0132: Restore PCM Analog Mic-In2
  ALSA: hda/ca0132: Don't test for QUIRK_NONE
  ALSA: hda/ca0132: Restore behavior of QUIRK_ALIENWARE
  ALSA: hda/ca0132: Delete redundant UNSOL event requests
  ALSA: hda/ca0132: Delete pointless assignments to struct auto_pin_cfg fields
  ALSA: hda/realtek - Fix pop noise on Lenovo P50 & co

Pull mtd fixes from Boris Brezillon:
 "NAND fixes:

   - add a quirk for a bunch of broken Macronix chips

   - fix nand_block_bad() when chip->ecc.read_oob() returns a positive
     value encoding the number of bitflips

   - fix OOB handling in the MXC driver fo V2.1 controllers

   - flag the ONFI_FEATURE_ON_DIE_ECC as supported in the Micron driver

   - hardcode clk rate in the denali_dt driver to address a bad DT
     representation (the proper fix will be queued for 4.19)

  SPI NOR fixes:

   - add an ULL constant to some ID definitions so that the ID is not
     truncated on 32-bit platforms

  MTD fixes:

   - fix the sector unlocking logic in the CFI driver"

* tag 'mtd/fixes-for-4.18-rc3' of git://git.infradead.org/linux-mtd:
  mtd: rawnand: denali_dt: set clk_x_rate to 200 MHz unconditionally
  mtd: dataflash: Use ULL suffix for 64-bit constants
  mtd: cfi_cmdset_0002: Avoid walking all chips when unlocking.
  mtd: cfi_cmdset_0002: Fix unlocking requests crossing a chip boudary
  mtd: cfi_cmdset_0002: fix SEGV unlocking multiple chips
  mtd: cfi_cmdset_0002: Use right chip in do_ppb_xxlock()
  mtd: rawnand: All AC chips have a broken GET_FEATURES(TIMINGS).
  mtd: rawnand: fix return value check for bad block status
  mtd: rawnand: mxc: set spare area size register explicitly
  mtd: rawnand: micron: add ONFI_FEATURE_ON_DIE_ECC to supported features

Merge fixes from Andrew Morton:
 "7 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  proc: add Alexey to MAINTAINERS
  kasan: depend on CONFIG_SLUB_DEBUG
  include/linux/dax.h: dax_iomap_fault() returns vm_fault_t
  x86/e820: put !E820_TYPE_RAM regions into memblock.reserved
  slub: fix failure when we delete and create a slab cache
  Revert mm/vmstat.c: fix vmstat_update() preemption BUG
  lib/percpu_ida.c: don't do alloc from per-CPU list if there is none

I know I'll regret it.

Link: http://lkml.kernel.org/r/20180627194840.GA18113@avx2Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

KASAN depends on having access to some of the accounting that SLUB_DEBUG
does; without it, there are immediate crashes [1].  So, the natural
thing to do is to make KASAN select SLUB_DEBUG.

[1] http://lkml.kernel.org/r/CAHmME9rtoPwxUSnktxzKso14iuVCWT7BE_-_8PAC=pGw1iJnQg@mail.gmail.com

Link: http://lkml.kernel.org/r/20180622154623.25388-1-Jason@zx2c4.com
Fixes: f9e13c0a ("slab, slub: skip unnecessary kasan_cache_shutdown()")
Signed-off-by: NJason A. Donenfeld <Jason@zx2c4.com>
Acked-by: NMichal Hocko <mhocko@suse.com>
Reviewed-by: NShakeel Butt <shakeelb@google.com>
Acked-by: NChristoph Lameter <cl@linux.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Commit 1c8f4220 ("mm: change return type to vm_fault_t") missed a
conversion.  It's not a big problem at present because mainline is still
using

	typedef int vm_fault_t;

Fixes: 1c8f4220 ("mm: change return type to vm_fault_t")
Link: http://lkml.kernel.org/r/20180620172046.GA27894@jordon-HP-15-Notebook-PCSigned-off-by: NSouptick Joarder <jrdr.linux@gmail.com>
Reviewed-by: NAndrew Morton <akpm@linux-foundation.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

There is a kernel panic that is triggered when reading /proc/kpageflags
on the kernel booted with kernel parameter 'memmap=nn[KMG]!ss[KMG]':

  BUG: unable to handle kernel paging request at fffffffffffffffe
  PGD 9b20e067 P4D 9b20e067 PUD 9b210067 PMD 0
  Oops: 0000 [#1] SMP PTI
  CPU: 2 PID: 1728 Comm: page-types Not tainted 4.17.0-rc6-mm1-v4.17-rc6-180605-0816-00236-g2dfb086ef02c+ #160
  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2.fc28 04/01/2014
  RIP: 0010:stable_page_flags+0x27/0x3c0
  Code: 00 00 00 0f 1f 44 00 00 48 85 ff 0f 84 a0 03 00 00 41 54 55 49 89 fc 53 48 8b 57 08 48 8b 2f 48 8d 42 ff 83 e2 01 48 0f 44 c7 <48> 8b 00 f6 c4 01 0f 84 10 03 00 00 31 db 49 8b 54 24 08 4c 89 e7
  RSP: 0018:ffffbbd44111fde0 EFLAGS: 00010202
  RAX: fffffffffffffffe RBX: 00007fffffffeff9 RCX: 0000000000000000
  RDX: 0000000000000001 RSI: 0000000000000202 RDI: ffffed1182fff5c0
  RBP: ffffffffffffffff R08: 0000000000000001 R09: 0000000000000001
  R10: ffffbbd44111fed8 R11: 0000000000000000 R12: ffffed1182fff5c0
  R13: 00000000000bffd7 R14: 0000000002fff5c0 R15: ffffbbd44111ff10
  FS:  00007efc4335a500(0000) GS:ffff93a5bfc00000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: fffffffffffffffe CR3: 00000000b2a58000 CR4: 00000000001406e0
  Call Trace:
   kpageflags_read+0xc7/0x120
   proc_reg_read+0x3c/0x60
   __vfs_read+0x36/0x170
   vfs_read+0x89/0x130
   ksys_pread64+0x71/0x90
   do_syscall_64+0x5b/0x160
   entry_SYSCALL_64_after_hwframe+0x44/0xa9
  RIP: 0033:0x7efc42e75e23
  Code: 09 00 ba 9f 01 00 00 e8 ab 81 f4 ff 66 2e 0f 1f 84 00 00 00 00 00 90 83 3d 29 0a 2d 00 00 75 13 49 89 ca b8 11 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 34 c3 48 83 ec 08 e8 db d3 01 00 48 89 04 24

According to kernel bisection, this problem became visible due to commit
f7f99100 ("mm: stop zeroing memory during allocation in vmemmap")
which changes how struct pages are initialized.

Memblock layout affects the pfn ranges covered by node/zone.  Consider
that we have a VM with 2 NUMA nodes and each node has 4GB memory, and
the default (no memmap= given) memblock layout is like below:

  MEMBLOCK configuration:
   memory size = 0x00000001fff75c00 reserved size = 0x000000000300c000
   memory.cnt  = 0x4
   memory[0x0]     [0x0000000000001000-0x000000000009efff], 0x000000000009e000 bytes on node 0 flags: 0x0
   memory[0x1]     [0x0000000000100000-0x00000000bffd6fff], 0x00000000bfed7000 bytes on node 0 flags: 0x0
   memory[0x2]     [0x0000000100000000-0x000000013fffffff], 0x0000000040000000 bytes on node 0 flags: 0x0
   memory[0x3]     [0x0000000140000000-0x000000023fffffff], 0x0000000100000000 bytes on node 1 flags: 0x0
   ...

If you give memmap=1G!4G (so it just covers memory[0x2]),
the range [0x100000000-0x13fffffff] is gone:

  MEMBLOCK configuration:
   memory size = 0x00000001bff75c00 reserved size = 0x000000000300c000
   memory.cnt  = 0x3
   memory[0x0]     [0x0000000000001000-0x000000000009efff], 0x000000000009e000 bytes on node 0 flags: 0x0
   memory[0x1]     [0x0000000000100000-0x00000000bffd6fff], 0x00000000bfed7000 bytes on node 0 flags: 0x0
   memory[0x2]     [0x0000000140000000-0x000000023fffffff], 0x0000000100000000 bytes on node 1 flags: 0x0
   ...

This causes shrinking node 0's pfn range because it is calculated by the
address range of memblock.memory.  So some of struct pages in the gap
range are left uninitialized.

We have a function zero_resv_unavail() which does zeroing the struct pages
within the reserved unavailable range (i.e.  memblock.memory &&
!memblock.reserved).  This patch utilizes it to cover all unavailable
ranges by putting them into memblock.reserved.

Link: http://lkml.kernel.org/r/20180615072947.GB23273@hori1.linux.bs1.fc.nec.co.jp
Fixes: f7f99100 ("mm: stop zeroing memory during allocation in vmemmap")
Signed-off-by: NNaoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Tested-by: NOscar Salvador <osalvador@suse.de>
Tested-by: N"Herton R. Krzesinski" <herton@redhat.com>
Acked-by: NMichal Hocko <mhocko@suse.com>
Reviewed-by: NPavel Tatashin <pasha.tatashin@oracle.com>
Cc: Steven Sistare <steven.sistare@oracle.com>
Cc: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

In kernel 4.17 I removed some code from dm-bufio that did slab cache
merging (commit 21bb1327: "dm bufio: remove code that merges slab
caches") - both slab and slub support merging caches with identical
attributes, so dm-bufio now just calls kmem_cache_create and relies on
implicit merging.

This uncovered a bug in the slub subsystem - if we delete a cache and
immediatelly create another cache with the same attributes, it fails
because of duplicate filename in /sys/kernel/slab/.  The slub subsystem
offloads freeing the cache to a workqueue - and if we create the new
cache before the workqueue runs, it complains because of duplicate
filename in sysfs.

This patch fixes the bug by moving the call of kobject_del from
sysfs_slab_remove_workfn to shutdown_cache.  kobject_del must be called
while we hold slab_mutex - so that the sysfs entry is deleted before a
cache with the same attributes could be created.

Running device-mapper-test-suite with:

  dmtest run --suite thin-provisioning -n /commit_failure_causes_fallback/

triggered:

  Buffer I/O error on dev dm-0, logical block 1572848, async page read
  device-mapper: thin: 253:1: metadata operation 'dm_pool_alloc_data_block' failed: error = -5
  device-mapper: thin: 253:1: aborting current metadata transaction
  sysfs: cannot create duplicate filename '/kernel/slab/:a-0000144'
  CPU: 2 PID: 1037 Comm: kworker/u48:1 Not tainted 4.17.0.snitm+ #25
  Hardware name: Supermicro SYS-1029P-WTR/X11DDW-L, BIOS 2.0a 12/06/2017
  Workqueue: dm-thin do_worker [dm_thin_pool]
  Call Trace:
   dump_stack+0x5a/0x73
   sysfs_warn_dup+0x58/0x70
   sysfs_create_dir_ns+0x77/0x80
   kobject_add_internal+0xba/0x2e0
   kobject_init_and_add+0x70/0xb0
   sysfs_slab_add+0xb1/0x250
   __kmem_cache_create+0x116/0x150
   create_cache+0xd9/0x1f0
   kmem_cache_create_usercopy+0x1c1/0x250
   kmem_cache_create+0x18/0x20
   dm_bufio_client_create+0x1ae/0x410 [dm_bufio]
   dm_block_manager_create+0x5e/0x90 [dm_persistent_data]
   __create_persistent_data_objects+0x38/0x940 [dm_thin_pool]
   dm_pool_abort_metadata+0x64/0x90 [dm_thin_pool]
   metadata_operation_failed+0x59/0x100 [dm_thin_pool]
   alloc_data_block.isra.53+0x86/0x180 [dm_thin_pool]
   process_cell+0x2a3/0x550 [dm_thin_pool]
   do_worker+0x28d/0x8f0 [dm_thin_pool]
   process_one_work+0x171/0x370
   worker_thread+0x49/0x3f0
   kthread+0xf8/0x130
   ret_from_fork+0x35/0x40
  kobject_add_internal failed for :a-0000144 with -EEXIST, don't try to register things with the same name in the same directory.
  kmem_cache_create(dm_bufio_buffer-16) failed with error -17

Link: http://lkml.kernel.org/r/alpine.LRH.2.02.1806151817130.6333@file01.intranet.prod.int.rdu2.redhat.comSigned-off-by: NMikulas Patocka <mpatocka@redhat.com>
Reported-by: NMike Snitzer <snitzer@redhat.com>
Tested-by: NMike Snitzer <snitzer@redhat.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Revert commit c7f26ccf ("mm/vmstat.c: fix vmstat_update() preemption
BUG").  Steven saw a "using smp_processor_id() in preemptible" message
and added a preempt_disable() section around it to keep it quiet.  This
is not the right thing to do it does not fix the real problem.

vmstat_update() is invoked by a kworker on a specific CPU.  This worker
it bound to this CPU.  The name of the worker was "kworker/1:1" so it
should have been a worker which was bound to CPU1.  A worker which can
run on any CPU would have a `u' before the first digit.

smp_processor_id() can be used in a preempt-enabled region as long as
the task is bound to a single CPU which is the case here.  If it could
run on an arbitrary CPU then this is the problem we have an should seek
to resolve.

Not only this smp_processor_id() must not be migrated to another CPU but
also refresh_cpu_vm_stats() which might access wrong per-CPU variables.
Not to mention that other code relies on the fact that such a worker
runs on one specific CPU only.

Therefore revert that commit and we should look instead what broke the
affinity mask of the kworker.

Link: http://lkml.kernel.org/r/20180504104451.20278-1-bigeasy@linutronix.deSigned-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Steven J. Hill <steven.hill@cavium.com>
Cc: Tejun Heo <htejun@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

In commit 804209d8 ("lib/percpu_ida.c: use _irqsave() instead of
local_irq_save() + spin_lock") I inlined alloc_local_tag() and mixed up
the >= check from percpu_ida_alloc() with the one in alloc_local_tag().

Don't alloc from per-CPU freelist if ->nr_free is zero.

Link: http://lkml.kernel.org/r/20180613075830.c3zeva52fuj6fxxv@linutronix.de
Fixes: 804209d8 ("lib/percpu_ida.c: use _irqsave() instead of local_irq_save() + spin_lock")
Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de>
Reported-by: NDavid Disseldorp <ddiss@suse.de>
Tested-by: NDavid Disseldorp <ddiss@suse.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Nicholas Bellinger <nab@linux-iscsi.org>
Cc: Shaohua Li <shli@fb.com>
Cc: Kent Overstreet <kent.overstreet@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The poll() changes were not well thought out, and completely
unexplained.  They also caused a huge performance regression, because
"->poll()" was no longer a trivial file operation that just called down
to the underlying file operations, but instead did at least two indirect
calls.

Indirect calls are sadly slow now with the Spectre mitigation, but the
performance problem could at least be largely mitigated by changing the
"->get_poll_head()" operation to just have a per-file-descriptor pointer
to the poll head instead.  That gets rid of one of the new indirections.

But that doesn't fix the new complexity that is completely unwarranted
for the regular case.  The (undocumented) reason for the poll() changes
was some alleged AIO poll race fixing, but we don't make the common case
slower and more complex for some uncommon special case, so this all
really needs way more explanations and most likely a fundamental
redesign.

[ This revert is a revert of about 30 different commits, not reverted
  individually because that would just be unnecessarily messy  - Linus ]

Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Pull xfs fixes from Darrick Wong:
 "Here are some patches for 4.18 to fix regressions, accounting
  problems, overflow problems, and to strengthen metadata validation to
  prevent corruption.

  This series has been run through a full xfstests run over the weekend
  and through a quick xfstests run against this morning's master, with
  no major failures reported.

  Changes since last update:

   - more metadata validation strengthening to prevent crashes.

   - fix extent offset overflow problem when insert_range on a 512b
     block fs

   - fix some off-by-one errors in the realtime fsmap code

   - fix some math errors in the default resblks calculation when free
     space is low

   - fix a problem where stale page contents are exposed via mmap read
     after a zero_range at eof

   - fix accounting problems with per-ag reservations causing statfs
     reports to vary incorrectly"

* tag 'xfs-4.18-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: fix fdblocks accounting w/ RMAPBT per-AG reservation
  xfs: ensure post-EOF zeroing happens after zeroing part of a file
  xfs: fix off-by-one error in xfs_rtalloc_query_range
  xfs: fix uninitialized field in rtbitmap fsmap backend
  xfs: recheck reflink state after grabbing ILOCK_SHARED for a write
  xfs: don't allow insert-range to shift extents past the maximum offset
  xfs: don't trip over negative free space in xfs_reserve_blocks
  xfs: allow empty transactions while frozen
  xfs: xfs_iflush_abort() can be called twice on cluster writeback failure
  xfs: More robust inode extent count validation
  xfs: simplify xfs_bmap_punch_delalloc_range

Timur Tabi no longer works for Qualcomm, and he now has a kernel.org
email address, so update MAINTAINERS accordingly.
Signed-off-by: NTimur Tabi <timur@kernel.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Pull MIPS build fix from Paul Burton:
 "A single build fix for 4.18:

  Adjust rseq_signal_deliver() & rseq_handle_notify_resume() calls to
  add the ksig argument introduced in v4.18-rc2, around the same time as
  the unadjusted MIPS rseq support"

* tag 'mips_fixes_4.18_2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  MIPS: Add ksig argument to rseq_{signal_deliver,handle_notify_resume}

Pull ARM SoC fixes from Olof Johansson:
 "A handful of fixes, nothing really concerning and most touching
  devicetree files for various platforms.

  I also regenerated the shared multiplatform defconfigs; they have
  drifted quite a bit due to Kconfig changes and reordering, and several
  platform maintainers tried doing the same which resulted in a lot of
  conflict pain -- this way we get everybody onto the same base for next
  merge window"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (31 commits)
  arm64: dts: uniphier: fix widget name of headphone for LD11/LD20 boards
  ARM: dts: Fix SPI node for Arria10
  arm64: dts: stratix10: Fix SPI nodes for Stratix10
  qcom: cmd-db: enforce CONFIG_OF_RESERVED_MEM dependency
  ARM: Always build secure_cntvoff.S on ARM V7 to fix shmobile !SMP build
  ARM: multi_v7_defconfig: renormalize based on recent additions
  arm64: defconfig: renormalize based on recent additions
  arm64: dts: msm8916: fix Coresight ETF graph connections
  arm64: dts: apq8096-db820c: disable uart0 by default
  ARM: dts: imx6sx: fix irq for pcie bridge
  arm64: dts: Stingray: Fix I2C controller interrupt type
  arm64: dts: ns2: Fix PCIe controller interrupt type
  arm64: dts: ns2: Fix I2C controller interrupt type
  arm64: dts: specify 1.8V EMMC capabilities for bcm958742t
  arm64: dts: specify 1.8V EMMC capabilities for bcm958742k
  ARM: dts: Cygnus: Fix PCIe controller interrupt type
  ARM: dts: Cygnus: Fix I2C controller interrupt type
  ARM: dts: BCM5301x: Fix i2c controller interrupt type
  ARM: dts: HR2: Fix interrupt types for i2c and PCIe
  ARM: dts: NSP: Fix PCIe controllers interrupt types
  ...

Pull microblaze fixes from Michal Simek:

 - fix architecture gpio heart beat code

 - add new syscalls

 - remove unused xlnx,compound handling

 - remove platform.c

* tag 'microblaze-v4.18-rc3' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: consolidate GPIO reset handling
  microblaze: remove unecessary of_platform_bus_probe call
  microblaze: Add new syscalls io_pgetevents and rseq
  microblaze: Remove architecture heart beat code
  microblaze: heartbeat: fix missing prom.h include

Pull SCSI fixes from James Bottomley:
 "Three small bug fixes (barrier elimination, memory leak on unload,
  spinlock recursion) and a technical enhancement left over from the
  merge window: the TCMU read length support is required for tape
  devices read when the length of the read is greater than the tape
  block size"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: scsi_debug: Fix memory leak on module unload
  scsi: qla2xxx: Spinlock recursion in qla_target
  scsi: ipr: Eliminate duplicate barriers
  scsi: target: tcmu: add read length support

Pull input updates from Dmitry Torokhov:

 - the main change is a fix for my brain-dead patch to PS/2 button
   reporting for some protocols that made it in 4.17

 - there is a new driver for Spreadtum vibrator that I intended to send
   during merge window but ended up not sending the 2nd pull request.
   Given that this is a brand new driver we should not see regressions
   here

 - a fixup to Elantech PS/2 driver to avoid decoding errors on Thinkpad
   P52

 - addition of few more ACPI IDs for Silead and Elan drivers

 - RMI4 is switched to using IRQ domain code instead of rolling its own
   implementation

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: psmouse - fix button reporting for basic protocols
  Input: xpad - fix GPD Win 2 controller name
  Input: elan_i2c_smbus - fix more potential stack buffer overflows
  Input: elan_i2c - add ELAN0618 (Lenovo v330 15IKB) ACPI ID
  Input: elantech - fix V4 report decoding for module with middle key
  Input: elantech - enable middle button of touchpads on ThinkPad P52
  Input: do not assign new tracking ID when changing tool type
  Input: make input_report_slot_state() return boolean
  Input: synaptics-rmi4 - fix axis-swap behavior
  Input: synaptics-rmi4 - fix the error return code in rmi_probe_interrupts()
  Input: synaptics-rmi4 - convert irq distribution to irq_domain
  Input: silead - add MSSL0002 ACPI HID
  Input: goldfish_events - fix checkpatch warnings
  Input: add Spreadtrum vibrator driver

Merge branch 'fixes-v4.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security

Pull more security subsystem fixes from James Morris:
 "Two further fixes for the keys subsystem"

* 'fixes-v4.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  dh key: fix rounding up KDF output length
  certs/blacklist: fix const confusion

It may not be the actual real stable mailing list address, but the
stable scripts to actually pick up on the traditional way to mark stable
patches.

There are also reasons to explicitly avoid using the actual mailing list
address, since security patches with embargo dates generally do want the
stable marking, but don't want tools etc to mistakenly send the patch
out to the mailing list early.

So don't warn for things that are still actively used and explicitly
supported.
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

This patch fixes wrong name of headphone widget for receiving events
of insert/remove headphone plug from simple-card or audio-graph-card.

If we use wrong widget name then we get warning messages such as
"asoc-audio-graph-card sound: ASoC: DAPM unknown pin Headphones"
when the plug is inserted or removed from headphone jack.

Fixes: fb21a0ac ("arm64: dts: uniphier: add sound node")
Signed-off-by: NKatsuhiro Suzuki <suzuki.katsuhiro@socionext.com>
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: NOlof Johansson <olof@lixom.net>

The commit ba667650 ("Input: psmouse - clean up code") was pretty
brain-dead and broke extra buttons reporting for variety of PS/2 mice:
Genius, Thinkmouse and Intellimouse Explorer. We need to actually inspect
the data coming from the device when reporting events.

Fixes: ba667650 ("Input: psmouse - clean up code")
Reported-by: NJiri Slaby <jslaby@suse.cz>
Cc: stable@vger.kernel.org
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Merge tag 'qcom-fixes-for-4.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux into fixes

Qualcomm Fixes for v4.18-rc2

* Fix compiler warnings for cmd-db driver

* tag 'qcom-fixes-for-4.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux:
  qcom: cmd-db: enforce CONFIG_OF_RESERVED_MEM dependency
Signed-off-by: NOlof Johansson <olof@lixom.net>

Remove the unused bus-num node and change num-chipselect
to num-cs to match SPI bindings.

Cc: stable@vger.kernel.org
Fixes: f2d6f8f8 ("ARM: dts: socfpga: Add SPI Master1 for Arria10 SR chip")
Signed-off-by: NThor Thayer <thor.thayer@linux.intel.com>
Signed-off-by: NDinh Nguyen <dinguyen@kernel.org>
Signed-off-by: NOlof Johansson <olof@lixom.net>

Remove the unused bus-num node and change num-chipselect
to num-cs to match SPI bindings.

Cc: stable@vger.kernel.org
Fixes: 78cd6a9d ("arm64: dts: Add base stratix 10 dtsi")
Signed-off-by: NThor Thayer <thor.thayer@linux.intel.com>
Signed-off-by: NDinh Nguyen <dinguyen@kernel.org>
Signed-off-by: NOlof Johansson <olof@lixom.net>

Commit 383203ef ("dh key: get rid of stack allocated array") changed
kdf_ctr() to assume that the length of key material to derive is a
multiple of the digest size.  The length was supposed to be rounded up
accordingly.  However, the round_up() macro was used which only gives
the correct result on power-of-2 arguments, whereas not all hash
algorithms have power-of-2 digest sizes.  In some cases this resulted in
a write past the end of the 'outbuf' buffer.

Fix it by switching to roundup(), which works for non-power-of-2 inputs.

Reported-by: syzbot+486f97f892efeb2075a3@syzkaller.appspotmail.com
Reported-by: syzbot+29d17b7898b41ee120a5@syzkaller.appspotmail.com
Reported-by: syzbot+8a608baf8751184ec727@syzkaller.appspotmail.com
Reported-by: syzbot+d04e58bd384f1fe0b112@syzkaller.appspotmail.com
Fixes: 383203ef ("dh key: get rid of stack allocated array")
Signed-off-by: NEric Biggers <ebiggers@google.com>
Acked-by: NKees Cook <keescook@chromium.org>
Acked-by: NTycho Andersen <tycho@tycho.ws>
Signed-off-by: NJames Morris <james.morris@microsoft.com>

Fixes commit 2be04df5 ("certs/blacklist_nohashes.c: fix const confusion
in certs blacklist")
Signed-off-by: NNick Desaulniers <nick.desaulniers@gmail.com>
Signed-off-by: NDavid Howells <dhowells@redhat.com>
Signed-off-by: NJames Morris <james.morris@microsoft.com>

Merge branch 'fixes-v4.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security

Pull security subsystem fixes from James Morris:

 - Smack: fix a regression caused by 1bbc5513

 - X.509: fix a (usually un-seen) bug in RSA signature parsing

* 'fixes-v4.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  X.509: unpack RSA signatureValue field from BIT STRING
  Smack: Mark inode instant in smack_task_to_inode

Pull btrfs fixes from David Sterba:
 "Two regression fixes and an incorrect error value propagation fix from
  'rename exchange'"

* tag 'for-4.18-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  Btrfs: fix return value on rename exchange failure
  btrfs: fix invalid-free in btrfs_extent_same
  Btrfs: fix physical offset reported by fiemap for inline extents

Without CONFIG_OF_RESERVED_MEM, gcc sees that the global cmd_db_header
variable is never initialized, and through code optimization concludes
that a lot of other code cannot possibly work after that:

drivers/soc/qcom/cmd-db.c: In function 'cmd_db_read_addr':
drivers/soc/qcom/cmd-db.c:197:21: error: 'ent.addr' may be used uninitialized in this function [-Werror=maybe-uninitialized]
  return ret < 0 ? 0 : le32_to_cpu(ent.addr);
drivers/soc/qcom/cmd-db.c: In function 'cmd_db_read_aux_data':
drivers/soc/qcom/cmd-db.c:224:10: error: 'ent.len' may be used uninitialized in this function [-Werror=maybe-uninitialized]
  ent_len = le16_to_cpu(ent.len);
drivers/soc/qcom/cmd-db.c:115:6: error: 'rsc_hdr.data_offset' may be used uninitialized in this function [-Werror=maybe-uninitialized]
  u16 offset = le16_to_cpu(hdr->data_offset);
      ^~~~~~
drivers/soc/qcom/cmd-db.c:116:6: error: 'ent.offset' may be used uninitialized in this function [-Werror=maybe-uninitialized]
  u16 loffset = le16_to_cpu(ent->offset);
      ^~~~~~~
drivers/soc/qcom/cmd-db.c: In function 'cmd_db_read_aux_data_len':
drivers/soc/qcom/cmd-db.c:250:38: error: 'ent.len' may be used uninitialized in this function [-Werror=maybe-uninitialized]
  return ret < 0 ? 0 : le16_to_cpu(ent.len);
                                      ^
drivers/soc/qcom/cmd-db.c: In function 'cmd_db_read_slave_id':
drivers/soc/qcom/cmd-db.c:272:7: error: 'ent.addr' may be used uninitialized in this function [-Werror=maybe-uninitialized]

Using a hard CONFIG_OF_RESERVED_MEM dependency avoids this warning,
and we can remove the CONFIG_OF dependency.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Reviewed-by: NBjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: NAndy Gross <andy.gross@linaro.org>

Qualcomm Fixes for v4.18-rc1

* Fix coresight graph on msm8916
* Disable uart0 on db820c by default

The signatureValue field of a X.509 certificate is encoded as a BIT STRING.
For RSA signatures this BIT STRING is of so-called primitive subtype, which
contains a u8 prefix indicating a count of unused bits in the encoding.

We have to strip this prefix from signature data, just as we already do for
key data in x509_extract_key_data() function.

This wasn't noticed earlier because this prefix byte is zero for RSA key
sizes divisible by 8. Since BIT STRING is a big-endian encoding adding zero
prefixes has no bearing on its value.

The signature length, however was incorrect, which is a problem for RSA
implementations that need it to be exactly correct (like AMD CCP).
Signed-off-by: NMaciej S. Szmigiero <mail@maciej.szmigiero.name>
Fixes: c26fd69f ("X.509: Add a crypto key parser for binary (DER) X.509 certificates")
Cc: stable@vger.kernel.org
Signed-off-by: NJames Morris <james.morris@microsoft.com>

This reverts commit ee410f15.

It might prevent the machine from boot. It would wait for enough
randomness at the very beginning of kernel_init(). But there is
basically nothing running in parallel that would help to produce
any randomness.
Reported-by: NSteven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: NPetr Mladek <pmladek@suse.com>

The kernel may spew a WARNING with UBSAN undefined behavior at
handling ALSA sequencer ioctl SNDRV_SEQ_IOCTL_QUERY_NEXT_CLIENT:

UBSAN: Undefined behaviour in sound/core/seq/seq_clientmgr.c:2007:14
signed integer overflow:
2147483647 + 1 cannot be represented in type 'int'
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x122/0x1c8 lib/dump_stack.c:113
 ubsan_epilogue+0x12/0x86 lib/ubsan.c:159
 handle_overflow+0x1c2/0x21f lib/ubsan.c:190
  __ubsan_handle_add_overflow+0x2a/0x31 lib/ubsan.c:198
 snd_seq_ioctl_query_next_client+0x1ac/0x1d0 sound/core/seq/seq_clientmgr.c:2007
 snd_seq_ioctl+0x264/0x3d0 sound/core/seq/seq_clientmgr.c:2144
 ....

It happens only when INT_MAX is passed there, as we're incrementing it
unconditionally.  So the fix is trivial, check the value with
INT_MAX.  Although the bug itself is fairly harmless, it's better to
fix it so that fuzzers won't hit this again later.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=200211Signed-off-by: NTakashi Iwai <tiwai@suse.de>

The kernel may spew a WARNING about UBSAN undefined behavior at
handling ALSA timer ioctl SNDRV_TIMER_IOCTL_NEXT_DEVICE:

UBSAN: Undefined behaviour in sound/core/timer.c:1524:19
signed integer overflow:
2147483647 + 1 cannot be represented in type 'int'
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x122/0x1c8 lib/dump_stack.c:113
 ubsan_epilogue+0x12/0x86 lib/ubsan.c:159
 handle_overflow+0x1c2/0x21f lib/ubsan.c:190
 __ubsan_handle_add_overflow+0x2a/0x31 lib/ubsan.c:198
 snd_timer_user_next_device sound/core/timer.c:1524 [inline]
 __snd_timer_user_ioctl+0x204d/0x2520 sound/core/timer.c:1939
 snd_timer_user_ioctl+0x67/0x95 sound/core/timer.c:1994
 ....

It happens only when a value with INT_MAX is passed, as we're
incrementing it unconditionally.  So the fix is trivial, check the
value with INT_MAX.  Although the bug itself is fairly harmless, it's
better to fix it so that fuzzers won't hit this again later.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=200213Reported-and-tested-by: NTeam OWL337 <icytxw@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

We have 3 more Lenovo machines, they all have 2 front mics on them,
so they need the fixup to change the location for one of two mics.

Among these 3 Lenovo machines, one of them has the same pin cfg as the
machine with subid 0x17aa3138, so use the pin cfg table to apply fixup
for them. The rest machines don't share the same pin cfg, so far use
the subid to apply fixup for them.

Fixes: a3dafb22 ("ALSA: hda/realtek - adjust the location of one mic")
Cc: <stable@vger.kernel.org>
Signed-off-by: NHui Wang <hui.wang@canonical.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Pull networking fixes from David Miller:

 1) Fix netpoll OOPS in r8169, from Ville Syrjälä.

 2) Fix bpf instruction alignment on powerpc et al., from Eric Dumazet.

 3) Don't ignore IFLA_MTU attribute when creating new ipvlan links. From
    Xin Long.

 4) Fix use after free in AF_PACKET, from Eric Dumazet.

 5) Mis-matched RTNL unlock in xen-netfront, from Ross Lagerwall.

 6) Fix VSOCK loopback on big-endian, from Claudio Imbrenda.

 7) Missing RX buffer offset correction when computing DMA addresses in
    mvneta driver, from Antoine Tenart.

 8) Fix crashes in DCCP's ccid3_hc_rx_send_feedback, from Eric Dumazet.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (34 commits)
  sfc: make function efx_rps_hash_bucket static
  strparser: Corrected typo in documentation.
  qmi_wwan: add support for the Dell Wireless 5821e module
  cxgb4: when disabling dcb set txq dcb priority to 0
  net_sched: remove a bogus warning in hfsc
  net: dccp: switch rx_tstamp_last_feedback to monotonic clock
  net: dccp: avoid crash in ccid3_hc_rx_send_feedback()
  net: Remove depends on HAS_DMA in case of platform dependency
  MAINTAINERS: Add file patterns for dsa device tree bindings
  net: mscc: make sparse happy
  net: mvneta: fix the Rx desc DMA address in the Rx path
  Documentation: e1000: Fix docs build error
  Documentation: e100: Fix docs build error
  Documentation: e1000: Use correct heading adornment
  Documentation: e100: Use correct heading adornment
  ipv6: mcast: fix unsolicited report interval after receiving querys
  vhost_net: validate sock before trying to put its fd
  VSOCK: fix loopback on big-endian systems
  net: ethernet: ti: davinci_cpdma: make function cpdma_desc_pool_create static
  xen-netfront: Update features after registering netdev
  ...