3bfa7e14 ("fs/seq_file.c: seq_read(): add info message about buggy .next functions")
showed that we don't use seq_file correctly.
So make sure that our ->next function always updates the position.

Fixes: 7bccd12d ("ubi: Add debugfs file for tracking PEB state")
Signed-off-by: Richard Weinberger <richard@nod.at>

crypto_shash_descsize() returns the size of the shash_desc context
needed to compute the hash, not the size of the hash itself.

crypto_shash_digestsize() would be correct, or alternatively using
c->hash_len and c->hmac_desc_len which already store the correct values.
But actually it's simpler to just use stack arrays, so do that instead.

Fixes: 49525e5e ("ubifs: Add helper functions for authentication support")
Fixes: da8ef65f ("ubifs: Authenticate replayed journal")
Cc: <stable@vger.kernel.org> # v4.20+
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Richard Weinberger <richard@nod.at>

When "ubifs: introduce UBIFS_ATIME_SUPPORT to ubifs" introduced atime
support to ubifs, it also added lazytime support.  As far as I can tell
the lazytime support is terminally broken, as it causes
mark_inode_dirty_sync to be called from __writeback_single_inode, which
will then trigger the locking assert in ubifs_dirty_inode.  Just remove
the broken lazytime support for now, it can be added back later,
especially as some infrastructure changes should make that easier soon.

Fixes: 8c1c5f26 ("ubifs: introduce UBIFS_ATIME_SUPPORT to ubifs")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Richard Weinberger <richard@nod.at>

Pull module updates from Jessica Yu:
 "Only a small cleanup this time around: a trivial conversion of
  zero-length arrays to flexible arrays"

* tag 'modules-for-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
  kernel: module: Replace zero-length array with flexible-array member

Pull arm64 fixes from Catalin Marinas:

 - Ensure that the compiler and linker versions are aligned so that ld
   doesn't complain about not understanding a .note.gnu.property section
   (emitted when pointer authentication is enabled).

 - Force -mbranch-protection=none when the feature is not enabled, in
   case a compiler may choose a different default value.

 - Remove CONFIG_DEBUG_ALIGN_RODATA. It was never in defconfig and
   rarely enabled.

 - Fix checking 16-bit Thumb-2 instructions checking mask in the
   emulation of the SETEND instruction (it could match the bottom half
   of a 32-bit Thumb-2 instruction).

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: armv8_deprecated: Fix undef_hook mask for thumb setend
  arm64: remove CONFIG_DEBUG_ALIGN_RODATA feature
  arm64: Always force a branch protection mode when the compiler has one
  arm64: Kconfig: ptrauth: Add binutils version check to fix mismatch
  init/kconfig: Add LD_VERSION Kconfig

Pull more powerpc updates from Michael Ellerman:
 "The bulk of this is the series to make CONFIG_COMPAT user-selectable,
  it's been around for a long time but was blocked behind the
  syscall-in-C series.

  Plus there's also a few fixes and other minor things.

  Summary:

   - A fix for a crash in machine check handling on pseries (ie. guests)

   - A small series to make it possible to disable CONFIG_COMPAT, and
     turn it off by default for ppc64le where it's not used.

   - A few other miscellaneous fixes and small improvements.

  Thanks to: Alexey Kardashevskiy, Anju T Sudhakar, Arnd Bergmann,
  Christophe Leroy, Dan Carpenter, Ganesh Goudar, Geert Uytterhoeven,
  Geoff Levand, Mahesh Salgaonkar, Markus Elfring, Michal Suchanek,
  Nicholas Piggin, Stephen Boyd, Wen Xiong"

* tag 'powerpc-5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  selftests/powerpc: Always build the tm-poison test 64-bit
  powerpc: Improve ppc_save_regs()
  Revert "powerpc/64: irq_work avoid interrupt when called with hardware irqs enabled"
  powerpc/time: Replace <linux/clk-provider.h> by <linux/of_clk.h>
  powerpc/pseries/ddw: Extend upper limit for huge DMA window for persistent memory
  powerpc/perf: split callchain.c by bitness
  powerpc/64: Make COMPAT user-selectable disabled on littleendian by default.
  powerpc/64: make buildable without CONFIG_COMPAT
  powerpc/perf: consolidate valid_user_sp -> invalid_user_sp
  powerpc/perf: consolidate read_user_stack_32
  powerpc: move common register copy functions from signal_32.c to signal.c
  powerpc: Add back __ARCH_WANT_SYS_LLSEEK macro
  powerpc/ps3: Set CONFIG_UEVENT_HELPER=y in ps3_defconfig
  powerpc/ps3: Remove an unneeded NULL check
  powerpc/ps3: Remove duplicate error message
  powerpc/powernv: Re-enable imc trace-mode in kernel
  powerpc/perf: Implement a global lock to avoid races between trace, core and thread imc events.
  powerpc/pseries: Fix MCE handling on pseries
  selftests/eeh: Skip ahci adapters
  powerpc/64s: Fix doorbell wakeup msgclr optimisation

Pull m68knommu update from Greg Ungerer:
 "Only a single commit, to remove all use of the obsolete setup_irq()
  calls within the m68knommu architecture code"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68k: Replace setup_irq() by request_irq()

Pull RISC-V updates from Palmer Dabbelt:
 "This contains a handful of new features:

   - Partial support for the Kendryte K210.

     There are still a few outstanding issues that I have patches for,
     but I don't actually have a board to test them so they're not
     included yet.

   - SBI v0.2 support.

   - Fixes to support for building with LLVM-based toolchains. The
     resulting images are known not to boot yet.

  I don't anticipate a part two, but I'll probably have something early
  in the RCs to finish up the K210 support"

* tag 'riscv-for-linus-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (38 commits)
  riscv: create a loader.bin boot image for Kendryte SoC
  riscv: Kendryte K210 default config
  riscv: Add Kendryte K210 device tree
  riscv: Select required drivers for Kendryte SOC
  riscv: Add Kendryte K210 SoC support
  riscv: Add SOC early init support
  riscv: Unaligned load/store handling for M_MODE
  RISC-V: Support cpu hotplug
  RISC-V: Add supported for ordered booting method using HSM
  RISC-V: Add SBI HSM extension definitions
  RISC-V: Export SBI error to linux error mapping function
  RISC-V: Add cpu_ops and modify default booting method
  RISC-V: Move relocate and few other functions out of __init
  RISC-V: Implement new SBI v0.2 extensions
  RISC-V: Introduce a new config for SBI v0.1
  RISC-V: Add SBI v0.2 extension definitions
  RISC-V: Add basic support for SBI v0.2
  RISC-V: Mark existing SBI as 0.1 SBI.
  riscv: Use macro definition instead of magic number
  riscv: Add support to dump the kernel page tables
  ...

Pull 9p documentation update from Dominique Martinet:
 "Document the new O_NONBLOCK short read behavior"

* tag '9p-for-5.7-2' of git://github.com/martinetd/linux:
  9p: document short read behaviour with O_NONBLOCK

Pull ceph updates from Ilya Dryomov:
 "The main items are:

   - support for asynchronous create and unlink (Jeff Layton).

     Creates and unlinks are satisfied locally, without waiting for a
     reply from the MDS, provided the client has been granted
     appropriate caps (new in v15.y.z ("Octopus") release). This can be
     a big help for metadata heavy workloads such as tar and rsync.
     Opt-in with the new nowsync mount option.

   - multiple blk-mq queues for rbd (Hannes Reinecke and myself).

     When the driver was converted to blk-mq, we settled on a single
     blk-mq queue because of a global lock in libceph and some other
     technical debt. These have since been addressed, so allocate a
     queue per CPU to enhance parallelism.

   - don't hold onto caps that aren't actually needed (Zheng Yan).

     This has been our long-standing behavior, but it causes issues with
     some active/standby applications (synchronous I/O, stalls if the
     standby goes down, etc).

   - .snap directory timestamps consistent with ceph-fuse (Luis
     Henriques)"

* tag 'ceph-for-5.7-rc1' of git://github.com/ceph/ceph-client: (49 commits)
  ceph: fix snapshot directory timestamps
  ceph: wait for async creating inode before requesting new max size
  ceph: don't skip updating wanted caps when cap is stale
  ceph: request new max size only when there is auth cap
  ceph: cleanup return error of try_get_cap_refs()
  ceph: return ceph_mdsc_do_request() errors from __get_parent()
  ceph: check all mds' caps after page writeback
  ceph: update i_requested_max_size only when sending cap msg to auth mds
  ceph: simplify calling of ceph_get_fmode()
  ceph: remove delay check logic from ceph_check_caps()
  ceph: consider inode's last read/write when calculating wanted caps
  ceph: always renew caps if mds_wanted is insufficient
  ceph: update dentry lease for async create
  ceph: attempt to do async create when possible
  ceph: cache layout in parent dir on first sync create
  ceph: add new MDS req field to hold delegated inode number
  ceph: decode interval_sets for delegated inos
  ceph: make ceph_fill_inode non-static
  ceph: perform asynchronous unlink if we have sufficient caps
  ceph: don't take refs to want mask unless we have all bits
  ...

Pull overlayfs update from Miklos Szeredi:

 - Fix failure to copy-up files from certain NFSv4 mounts

 - Sort out inconsistencies between st_ino and i_ino (used in /proc/locks)

 - Allow consistent (POSIX-y) inode numbering in more cases

 - Allow virtiofs to be used as upper layer

 - Miscellaneous cleanups and fixes

* tag 'ovl-update-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
  ovl: document xino expected behavior
  ovl: enable xino automatically in more cases
  ovl: avoid possible inode number collisions with xino=on
  ovl: use a private non-persistent ino pool
  ovl: fix WARN_ON nlink drop to zero
  ovl: fix a typo in comment
  ovl: replace zero-length array with flexible-array member
  ovl: ovl_obtain_alias(): don't call d_instantiate_anon() for old
  ovl: strict upper fs requirements for remote upper fs
  ovl: check if upper fs supports RENAME_WHITEOUT
  ovl: allow remote upper
  ovl: decide if revalidate needed on a per-dentry basis
  ovl: separate detection of remote upper layer from stacked overlay
  ovl: restructure dentry revalidation
  ovl: ignore failure to copy up unknown xattrs
  ovl: document permission model
  ovl: simplify i_ino initialization
  ovl: factor out helper ovl_get_root()
  ovl: fix out of date comment and unreachable code
  ovl: fix value of i_ino for lower hardlink corner case

Pull iomap fix from Darrick Wong:
 "Fix a problem in readahead where we can crash if we can't allocate a
  full bio due to GFP_NORETRY"

* tag 'iomap-5.7-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  iomap: Handle memory allocation failure in readahead

Pull crypto fixes from Herbert Xu:
 "This fixes a Kconfig dependency for hisilicon as well as a double free
  in marvell/octeontx"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: marvell/octeontx - fix double free of ptr
  crypto: hisilicon - Fix build error

Pull watchdog updates from Wim Van Sebroeck:

 - add TI K3 RTI watchdog

 - add stop_on_reboot parameter to control reboot policy

 - wm831x_wdt: Remove GPIO handling

 - several small fixes, improvements and clean-ups

* tag 'linux-watchdog-5.7-rc1' of git://www.linux-watchdog.org/linux-watchdog:
  watchdog: Add K3 RTI watchdog support
  dt-bindings: watchdog: Add support for TI K3 RTI watchdog
  watchdog: ziirave_wdt: change name to be more specific
  watchdog: orion: use 0 for unset heartbeat
  watchdog: npcm: remove whitespaces
  watchdog: reset last_hw_keepalive time at start
  watchdog: imx2_wdt: Drop .remove callback
  watchdog: Add stop_on_reboot parameter to control reboot policy
  watchdog: wm831x_wdt: Remove GPIO handling
  watchdog: imx7ulp: Remove unused include of init.h
  watchdog: imx_sc_wdt: Remove unused includes
  watchdog: qcom: Use irq flags from firmware
  watchdog: pm8916_wdt: Add system sleep callbacks
  watchdog: qcom-wdt: disable pretimeout on timer platform

Merge tag 'tag-chrome-platform-for-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux

Pull chrome platform updates from Benson Leung:

  cros-usbpd-notify and cros_ec_typec:
   - Add a new notification driver that handles and dispatches USB PD
     related events to other drivers.
   - Add a Type C connector class driver for cros_ec

  CrOS EC:
   - Introduce a new cros_ec_cmd_xfer_status helper

  Sensors/iio:
   - A series from Gwendal that adds Cros EC sensor hub FIFO support

  Wilco EC:
   - Fix a build warning.
   - Platform data shouldn't include kernel.h

  Misc:
   - i2c api conversion complete, with i2c_new_client_device instead of
     i2c_new_device in chromeos_laptop.
   - Replace zero-length array with flexible-array member in
     cros_ec_chardev and wilco_ec
   - Update new structure for SPI transfer delays in cros_ec_spi

* tag 'tag-chrome-platform-for-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux: (34 commits)
  platform/chrome: cros_ec_spi: Wait for USECS, not NSECS
  iio: cros_ec: Use Hertz as unit for sampling frequency
  iio: cros_ec: Report hwfifo_watermark_max
  iio: cros_ec: Expose hwfifo_timeout
  iio: cros_ec: Remove pm function
  iio: cros_ec: Register to cros_ec_sensorhub when EC supports FIFO
  iio: expose iio_device_set_clock
  iio: cros_ec: Move function description to .c file
  platform/chrome: cros_ec_sensorhub: Add median filter
  platform/chrome: cros_ec_sensorhub: Add code to spread timestmap
  platform/chrome: cros_ec_sensorhub: Add FIFO support
  platform/chrome: cros_ec_sensorhub: Add the number of sensors in sensorhub
  platform/chrome: chromeos_laptop: make I2C API conversion complete
  platform/chrome: wilco_ec: event: Replace zero-length array with flexible-array member
  platform/chrome: cros_ec_chardev: Replace zero-length array with flexible-array member
  platform/chrome: cros_ec_typec: Update port info from EC
  platform/chrome: Add Type C connector class driver
  platform/chrome: cros_usbpd_notify: Pull PD_HOST_EVENT status
  platform/chrome: cros_usbpd_notify: Amend ACPI driver to plat
  platform/chrome: cros_usbpd_notify: Add driver data struct
  ...

Pull libnvdimm and dax updates from Dan Williams:
 "There were multiple touches outside of drivers/nvdimm/ this round to
  add cross arch compatibility to the devm_memremap_pages() interface,
  enhance numa information for persistent memory ranges, and add a
  zero_page_range() dax operation.

  This cycle I switched from the patchwork api to Konstantin's b4 script
  for collecting tags (from x86, PowerPC, filesystem, and device-mapper
  folks), and everything looks to have gone ok there. This has all
  appeared in -next with no reported issues.

  Summary:

   - Add support for region alignment configuration and enforcement to
     fix compatibility across architectures and PowerPC page size
     configurations.

   - Introduce 'zero_page_range' as a dax operation. This facilitates
     filesystem-dax operation without a block-device.

   - Introduce phys_to_target_node() to facilitate drivers that want to
     know resulting numa node if a given reserved address range was
     onlined.

   - Advertise a persistence-domain for of_pmem and papr_scm. The
     persistence domain indicates where cpu-store cycles need to reach
     in the platform-memory subsystem before the platform will consider
     them power-fail protected.

   - Promote numa_map_to_online_node() to a cross-kernel generic
     facility.

   - Save x86 numa information to allow for node-id lookups for reserved
     memory ranges, deploy that capability for the e820-pmem driver.

   - Pick up some miscellaneous minor fixes, that missed v5.6-final,
     including a some smatch reports in the ioctl path and some unit
     test compilation fixups.

   - Fixup some flexible-array declarations"

* tag 'libnvdimm-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (29 commits)
  dax: Move mandatory ->zero_page_range() check in alloc_dax()
  dax,iomap: Add helper dax_iomap_zero() to zero a range
  dax: Use new dax zero page method for zeroing a page
  dm,dax: Add dax zero_page_range operation
  s390,dcssblk,dax: Add dax zero_page_range operation to dcssblk driver
  dax, pmem: Add a dax operation zero_page_range
  pmem: Add functions for reading/writing page to/from pmem
  libnvdimm: Update persistence domain value for of_pmem and papr_scm device
  tools/test/nvdimm: Fix out of tree build
  libnvdimm/region: Fix build error
  libnvdimm/region: Replace zero-length array with flexible-array member
  libnvdimm/label: Replace zero-length array with flexible-array member
  ACPI: NFIT: Replace zero-length array with flexible-array member
  libnvdimm/region: Introduce an 'align' attribute
  libnvdimm/region: Introduce NDD_LABELING
  libnvdimm/namespace: Enforce memremap_compat_align()
  libnvdimm/pfn: Prevent raw mode fallback if pfn-infoblock valid
  libnvdimm: Out of bounds read in __nd_ioctl()
  acpi/nfit: improve bounds checking for 'func'
  mm/memremap_pages: Introduce memremap_compat_align()
  ...

Pull iommu updates from Joerg Roedel:

 - ARM-SMMU support for the TLB range invalidation command in SMMUv3.2

 - ARM-SMMU introduction of command batching helpers to batch up CD and
   ATC invalidation

 - ARM-SMMU support for PCI PASID, along with necessary PCI symbol
   exports

 - Introduce a generic (actually rename an existing) IOMMU related
   pointer in struct device and reduce the IOMMU related pointers

 - Some fixes for the OMAP IOMMU driver to make it build on 64bit
   architectures

 - Various smaller fixes and improvements

* tag 'iommu-updates-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (39 commits)
  iommu: Move fwspec->iommu_priv to struct dev_iommu
  iommu/virtio: Use accessor functions for iommu private data
  iommu/qcom: Use accessor functions for iommu private data
  iommu/mediatek: Use accessor functions for iommu private data
  iommu/renesas: Use accessor functions for iommu private data
  iommu/arm-smmu: Use accessor functions for iommu private data
  iommu/arm-smmu: Refactor master_cfg/fwspec usage
  iommu/arm-smmu-v3: Use accessor functions for iommu private data
  iommu: Introduce accessors for iommu private data
  iommu/arm-smmu: Fix uninitilized variable warning
  iommu: Move iommu_fwspec to struct dev_iommu
  iommu: Rename struct iommu_param to dev_iommu
  iommu/tegra-gart: Remove direct access of dev->iommu_fwspec
  drm/msm/mdp5: Remove direct access of dev->iommu_fwspec
  ACPI/IORT: Remove direct access of dev->iommu_fwspec
  iommu: Define dev_iommu_fwspec_get() for !CONFIG_IOMMU_API
  iommu/virtio: Reject IOMMU page granule larger than PAGE_SIZE
  iommu/virtio: Fix freeing of incomplete domains
  iommu/virtio: Fix sparse warning
  iommu/vt-d: Add build dependency on IOASID
  ...

Pull more kvm updates from Paolo Bonzini:
 "s390:
   - nested virtualization fixes

  x86:
   - split svm.c

   - miscellaneous fixes"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: VMX: fix crash cleanup when KVM wasn't used
  KVM: X86: Filter out the broadcast dest for IPI fastpath
  KVM: s390: vsie: Fix possible race when shadowing region 3 tables
  KVM: s390: vsie: Fix delivery of addressing exceptions
  KVM: s390: vsie: Fix region 1 ASCE sanity shadow address checks
  KVM: nVMX: don't clear mtf_pending when nested events are blocked
  KVM: VMX: Remove unnecessary exception trampoline in vmx_vmenter
  KVM: SVM: Split svm_vcpu_run inline assembly to separate file
  KVM: SVM: Move SEV code to separate file
  KVM: SVM: Move AVIC code to separate file
  KVM: SVM: Move Nested SVM Implementation to nested.c
  kVM SVM: Move SVM related files to own sub-directory

Pull virtio updates from Michael Tsirkin:

 - Some bug fixes

 - The new vdpa subsystem with two first drivers

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  virtio-balloon: Revert "virtio-balloon: Switch back to OOM handler for VIRTIO_BALLOON_F_DEFLATE_ON_OOM"
  vdpa: move to drivers/vdpa
  virtio: Intel IFC VF driver for VDPA
  vdpasim: vDPA device simulator
  vhost: introduce vDPA-based backend
  virtio: introduce a vDPA based transport
  vDPA: introduce vDPA bus
  vringh: IOTLB support
  vhost: factor out IOTLB
  vhost: allow per device message handler
  vhost: refine vhost and vringh kconfig
  virtio-balloon: Switch back to OOM handler for VIRTIO_BALLOON_F_DEFLATE_ON_OOM
  virtio-net: Introduce hash report feature
  virtio-net: Introduce RSS receive steering feature
  virtio-net: Introduce extended RSC feature
  tools/virtio: option to build an out of tree module

For thumb instructions, call_undef_hook() in traps.c first reads a u16,
and if the u16 indicates a T32 instruction (u16 >= 0xe800), a second
u16 is read, which then makes up the the lower half-word of a T32
instruction. For T16 instructions, the second u16 is not read,
which makes the resulting u32 opcode always have the upper half set to
0.

However, having the upper half of instr_mask in the undef_hook set to 0
masks out the upper half of all thumb instructions - both T16 and T32.
This results in trapped T32 instructions with the lower half-word equal
to the T16 encoding of setend (b650) being matched, even though the upper
half-word is not 0000 and thus indicates a T32 opcode.

An example of such a T32 instruction is eaa0b650, which should raise a
SIGILL since T32 instructions with an eaa prefix are unallocated as per
Arm ARM, but instead works as a SETEND because the second half-word is set
to b650.

This patch fixes the issue by extending instr_mask to include the
upper u32 half, which will still match T16 instructions where the upper
half is 0, but not T32 instructions.

Fixes: 2d888f48 ("arm64: Emulate SETEND for AArch32 tasks")
Cc: <stable@vger.kernel.org> # 4.0.x-
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Fredrik Strupe <fredrik@strupe.net>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

__get_user_pages_locked() will return 0 instead of -EINTR after commit
4426e945 ("mm/gup: allow VM_FAULT_RETRY for multiple times") which
added extra code to allow gup detect fatal signal faster.

Restore the original -EINTR behavior.

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Fixes: 4426e945 ("mm/gup: allow VM_FAULT_RETRY for multiple times")
Reported-by: syzbot+3be1a33f04dc782e9fd5@syzkaller.appspotmail.com
Signed-off-by: Hillf Danton <hdanton@sina.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Regular files opened with O_NONBLOCK allow read to return after a single
round-trip with the server instead of trying to fill buffer.
Add a few lines in 9p documentation to describe that.

Link: http://lkml.kernel.org/r/1586193572-1375-1-git-send-email-asmadeus@codewreck.orgSigned-off-by: Dominique Martinet <dominique.martinet@cea.fr>

Pull drm fixes from Dave Airlie:
 "This is a set of fixes that have queued up, I think I might have
  another pull with some more before rc1 but I'd like to dequeue what I
  have now just in case Easter is more eggciting that expected.

  The main thing in here is a fix for a longstanding nouveau power
  management issues on certain laptops, it should help runtime
  suspend/resume for a lot of people.

  There is also a reverted patch for some drm_mm behaviour in atomic
  contexts.

  Summary:

  core:
   - revert drm_mm atomic patch
   - dt binding fixes

  fbcon:
   - null ptr error fix

  i915:
   - GVT fixes

  nouveau:
   - runpm fix
   - svm fixes

  amdgpu:
   - HDCP fixes
   - gfx10 fix
   - Misc display fixes
   - BACO fixes

  amdkfd:
   - Fix memory leak

  vboxvideo:
   - remove conflicting fbs

  vc4:
   - mode validation fix

  xen:
   - fix PTR_ERR usage"

* tag 'drm-next-2020-04-08' of git://anongit.freedesktop.org/drm/drm: (41 commits)
  drm/nouveau/kms/nv50-: wait for FIFO space on PIO channels
  drm/nouveau/nvif: protect waits against GPU falling off the bus
  drm/nouveau/nvif: access PTIMER through usermode class, if available
  drm/nouveau/gr/gp107,gp108: implement workaround for HW hanging during init
  drm/nouveau: workaround runpm fail by disabling PCI power management on certain intel bridges
  drm/nouveau/svm: remove useless SVM range check
  drm/nouveau/svm: check for SVM initialized before migrating
  drm/nouveau/svm: fix vma range check for migration
  drm/nouveau: remove checks for return value of debugfs functions
  drm/nouveau/ttm: evict other IO mappings when running out of BAR1 space
  drm/amdkfd: kfree the wrong pointer
  drm/amd/display: increase HDCP authentication delay
  drm/amd/display: Correctly cancel future watchdog and callback events
  drm/amd/display: Don't try hdcp1.4 when content_type is set to type1
  drm/amd/powerplay: move the ASIC specific nbio operation out of smu_v11_0.c
  drm/amd/powerplay: drop redundant BIF doorbell interrupt operations
  drm/amd/display: Fix dcn21 num_states
  drm/amd/display: Enable BT2020 in COLOR_ENCODING property
  drm/amd/display: LFC not working on 2.0x range monitors (v2)
  drm/amd/display: Support plane level CTM
  ...

Pull input updates from Dmitry Torokhov:
 "An update to the Goodix touchscreen driver to enable it work properly
  on various Bay Trail and Cherry Trail devices, and a few other
  assorted changes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (26 commits)
  Input: update SPDX tag for input-event-codes.h
  Input: i8042 - add Acer Aspire 5738z to nomux list
  Input: goodix - fix compilation when ACPI support is disabled
  dt-bindings: touchscreen: Convert edt-ft5x06 to json-schema
  Input: of_touchscreen - explicitly choose axis
  Input: goodix - support gt9147 touchpanel
  dt-bindings: touchscreen: goodix: support of gt9147
  Input: goodix - add support for Goodix GT917S
  Input: goodix - use string-based chip ID
  dt-bindings: input: touchscreen: add compatible string for Goodix GT917S
  Input: goodix - add support for more then one touch-key
  Input: goodix - fix spurious key release events
  Input: goodix - try to reset the controller if the i2c-test fails
  Input: goodix - restore config on resume if necessary
  Input: goodix - make goodix_send_cfg() take a raw buffer as argument
  Input: goodix - add minimum firmware size check
  Input: goodix - save a copy of the config from goodix_read_config()
  Input: goodix - move defines to above struct goodix_ts_data declaration
  Input: goodix - add support for controlling the IRQ pin through ACPI methods
  Input: goodix - add support for getting IRQ + reset GPIOs on Bay Trail devices
  ...

Pull thermal updates from Daniel Lezcano:

 - Convert tsens configuration DT binding to yaml (Rajeshwari)

 - Add interrupt support on the rcar sensor (Niklas Söderlund)

 - Add a new Spreadtrum thermal driver (Baolin Wang)

 - Add thermal binding for the fsl scu board, a new API to retrieve the
   sensor id bound to the thermal zone and i.MX system controller sensor
   (Anson Huang))

 - Remove warning log when a deferred probe is requested on Exynos
   (Marek Szyprowski)

 - Add the thermal monitoring unit support for imx8mm with its DT
   bindings (Anson Huang)

 - Rephrase the Kconfig text for clarity (Linus Walleij)

 - Use the gpio descriptor for the ti-soc-thermal (Linus Walleij)

 - Align msg structure to 4 bytes for i.MX SC, fix the Kconfig
   dependency, add the __may_be unused annotation for PM functions and
   the COMPILE_TEST option for imx8mm (Anson Huang)

 - Fix a dependency on regmap in Kconfig for qoriq (Yuantian Tang)

 - Add DT binding and support for the rcar gen3 r8a77961 and improve the
   error path on the rcar init function (Niklas Söderlund)

 - Cleanup and improvements for the tsens Qcom sensor (Amit Kucheria)

 - Improve code by removing lock and caching values in the rcar thermal
   sensor (Niklas Söderlund)

 - Cleanup in the qoriq drivers and add a call to
   imx_thermal_unregister_legacy_cooling in the removal function (Anson
   Huang)

 - Remove redundant 'maxItems' in tsens and sprd DT bindings (Rob
   Herring)

 - Change the thermal DT bindings by making the cooling-maps optional
   (Yuantian Tang)

 - Add Tiger Lake support (Sumeet Pawnikar)

 - Use scnprintf() for avoiding potential buffer overflow (Takashi Iwai)

 - Make pkg_temp_lock a raw_spinlock_t(Clark Williams)

 - Fix incorrect data types by changing them to signed on i.MX SC (Anson
   Huang)

 - Replace zero-length array with flexible-array member (Gustavo A. R.
   Silva)

 - Add support for i.MX8MP in the driver and in the DT bindings (Anson
   Huang)

 - Fix return value of the cpufreq_set_cur_state() function (Willy
   Wolff)

 - Remove abusing and scary WARN_ON in the cpufreq cooling device
   (Daniel Lezcano)

 - Fix build warning of incorrect argument type reported by sparse on
   imx8mm (Anson Huang)

 - Fix stub for the devfreq cooling device (Martin Blumenstingl)

 - Fix cpu idle cooling documentation (Sergey Vidishev)

* tag 'thermal-v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux: (52 commits)
  Documentation: cpu-idle-cooling: Fix diagram for 33% duty cycle
  thermal: devfreq_cooling: inline all stubs for CONFIG_DEVFREQ_THERMAL=n
  thermal: imx8mm: Fix build warning of incorrect argument type
  thermal/drivers/cpufreq_cooling: Remove abusing WARN_ON
  thermal/drivers/cpufreq_cooling: Fix return of cpufreq_set_cur_state
  thermal: imx8mm: Add i.MX8MP support
  dt-bindings: thermal: imx8mm-thermal: Add support for i.MX8MP
  thermal: qcom: tsens.h: Replace zero-length array with flexible-array member
  thermal: imx_sc_thermal: Fix incorrect data type
  thermal: int340x_thermal: Use scnprintf() for avoiding potential buffer overflow
  thermal: int340x: processor_thermal: Add Tiger Lake support
  thermal/x86_pkg_temp: Make pkg_temp_lock a raw_spinlock_t
  dt-bindings: thermal: make cooling-maps property optional
  dt-bindings: thermal: qcom-tsens: Remove redundant 'maxItems'
  dt-bindings: thermal: sprd: Remove redundant 'maxItems'
  thermal: imx: Calling imx_thermal_unregister_legacy_cooling() in .remove
  thermal: qoriq: Sort includes alphabetically
  thermal: qoriq: Use devm_add_action_or_reset() to handle all cleanups
  thermal: rcar_thermal: Remove lock in rcar_thermal_get_current_temp()
  thermal: rcar_thermal: Do not store ctemp in rcar_thermal_priv
  ...

Pull mfd updates from Lee Jones:
 "New Drivers:
   - Add support for IQS620A/621/622/624/625 Azoteq IQS62X Sensors

  New Device Support:
   - Add support for ADC, IRQ, Regulator, RTC and WDT to Ricoh RN5T618 PMIC
   - Add support for Comet Lake to Intel LPSS

  New Functionality:
   - Add support for Charger Detection to Spreadtrum SC27xx PMICs
   - Add support for Interrupt Polarity to Dialog Semi DA9062/61 PMIC
   - Add ACPI enumeration support to Diolan DLN2 USB Adaptor

  Fix-ups:
   - Device Tree; iqs62x, rn5t618, cros_ec_dev, stm32-lptimer, rohm,bd71837, rohm,bd71847
   - I2C registration; rn5t618
   - Kconfig; MFD_CPCAP, AB8500_CORE, MFD_WM8994, MFD_WM97xx, MFD_STPMIC1
   - Use flexible-array members; omap-usb-tll, qcom-pm8xxx
   - Remove unnecessary casts; omap-usb-host, omap-usb-tll
   - Power (suspend/resume/poweroff) enhancements; rk808
   - Improve error/sanity checking; dln2
   - Use snprintf(); aat2870-core

  Bug Fixes:
   - Fix PCI IDs in intel-lpss-pci"

* tag 'mfd-next-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (33 commits)
  mfd: intel-lpss: Fix Intel Elkhart Lake LPSS I2C input clock
  mfd: aat2870: Use scnprintf() for avoiding potential buffer overflow
  mfd: dln2: Allow to be enumerated via ACPI
  mfd: da9062: Add support for interrupt polarity defined in device tree
  dt-bindings: bd718x7: Yamlify and add BD71850
  mfd: dln2: Fix sanity checking for endpoints
  mfd: intel-lpss: Add Intel Comet Lake PCH-V PCI IDs
  mfd: sc27xx: Add USB charger type detection support
  dt-bindings: mfd: Document STM32 low power timer bindings
  mfd: rk808: Convert RK805 to shutdown/suspend hooks
  mfd: rk808: Reduce shutdown duplication
  mfd: rk808: Stop using syscore ops
  mfd: rk808: Ensure suspend/resume hooks always work
  mfd: rk808: Always use poweroff when requested
  mfd: omap: Remove useless cast for driver.name
  mfd: Kconfig: Fix some misspelling of the word functionality
  mfd: pm8xxx: Replace zero-length array with flexible-array member
  mfd: omap-usb-tll: Replace zero-length array with flexible-array member
  mfd: cpcap: Fix compile if MFD_CORE is not selected
  mfd: cros_ec: Check DT node for usbpd-notify add
  ...

Pull backlight updates from Lee Jones:
 "Switch pwm_bl and corgi_lcd drivers to use GPIO descriptors"

* tag 'backlight-next-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
  backlight: corgi: Convert to use GPIO descriptors
  backlight: pwm_bl: Switch to full GPIO descriptor

Pull LED updates from Pavel Machek:
 "One new driver, some driver changes, and some late minute cleanups --
  but those are just whitespace so should be okay.

  There are some major changes being prepared (multicolor, triggers) so
  the next release likely will be more interesting"

* tag 'leds-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds:
  leds: core: Fix warning message when init_data
  leds: make functions easier to understand
  leds: sort Makefile entries
  leds: old enums are not really applicable to new code
  leds: ip30: label power LED as such
  leds: lm3532: make bitfield 'enabled' unsigned
  leds: leds-pwm: Replace zero-length array with flexible-array member
  leds: leds-is31fl32xx: Replace zero-length array with flexible-array member
  leds: pwm: remove useless pwm_period_ns
  leds: pwm: remove header
  leds: pwm: convert to atomic PWM API
  leds: pwm: simplify if condition
  leds: add SGI IP30 led support
  leds: lm3697: fix spelling mistake "To" -> "Too"
  leds: leds-bd2802: remove set but not used variable 'pdata'
  leds: ns2: Convert to GPIO descriptors
  leds: ns2: Absorb platform data

It's definitely incorrect to mark the lock as taken even if
down_read_killable() failed.

This wass overlooked when we switched from down_read() to
down_read_killable() because down_read() won't fail while
down_read_killable() could.

Fixes: 71335f37 ("mm/gup: allow to react to fatal signals")
Reported-by: syzbot+a8c70b7f3579fc0587dc@syzkaller.appspotmail.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

lookup_node() uses gup to pin the page and get node information.  It
checks against ret>=0 assuming the page will be filled in.  However it's
also possible that gup will return zero, for example, when the thread is
quickly killed with a fatal signal.  Teach lookup_node() to gracefully
return an error -EFAULT if it happens.

Meanwhile, initialize "page" to NULL to avoid potential risk of
exploiting the pointer.

Fixes: 4426e945 ("mm/gup: allow VM_FAULT_RETRY for multiple times")
Reported-by: syzbot+693dc11fcb53120b5559@syzkaller.appspotmail.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

amd-drm-next-5.7-2020-04-01:

amdgpu:
- HDCP fixes
- gfx10 fix
- Misc display fixes
- BACO fixes

amdkfd:
- Fix memory leak
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200401194619.4217-1-alexander.deucher@amd.com

A couple of misc fixes/workarounds for some issues that are causing a
lot of pain for people.

Of most interest are the PCI power management and GR init WARs, which
effect a rather significant number of laptop systems that are in use
today.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Ben Skeggs <skeggsb@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ <CACAvsv5Ef5YKS9EPBH3YUubzvVr++_rzjgSqV_B5nC0L2kB6-Q@mail.gmail.com

Merge tag 'drm-misc-next-fixes-2020-04-04' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

A bunch of fixes to avoid null pointer dereference in fbcon, fix a return
in xen, some DT bindings fixes, a vc4 issue with 1920x1200 mode validation,
and a conflicting framebuffer in vboxvideo.
Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20200404090057.a3m7uw6tavwtcyon@gilmour.lan

Merge tag 'drm-intel-next-fixes-2020-04-02' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

Only gvt fixes on this round:

- Fix non-privilege access warning (Tina)
- Fix display port type (Tina)
- BDW cmd parser missed SWTESS_BASE_ADDRESS (Yan)
- Bypass length check of LRI (Yan)
- Fix one klocwork warning (Tina)
Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200402213026.GA1141017@intel.com

The use of `delay_usecs` in terminate_request() was replaced with the new
`delay` struct used by the SPI subsystem, however the unit was
set to SPI_DELAY_UNIT_NSECS instead of SPI_DELAY_UNIT_USECS. This fixes that.

Fixes: 7d3ca507 ("platform/chrome: cros_ec_spi: Use new structure for SPI transfer delays")
Signed-off-by: Benson Leung <bleung@chromium.org>

Merge more updates from Andrew Morton:

 - a lot more of MM, quite a bit more yet to come: (memcg, pagemap,
   vmalloc, pagealloc, migration, thp, ksm, madvise, virtio,
   userfaultfd, memory-hotplug, shmem, rmap, zswap, zsmalloc, cleanups)

 - various other subsystems (procfs, misc, MAINTAINERS, bitops, lib,
   checkpatch, epoll, binfmt, kallsyms, reiserfs, kmod, gcov, kconfig,
   ubsan, fault-injection, ipc)

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (158 commits)
  ipc/shm.c: make compat_ksys_shmctl() static
  ipc/mqueue.c: fix a brace coding style issue
  lib/Kconfig.debug: fix a typo "capabilitiy" -> "capability"
  ubsan: include bug type in report header
  kasan: unset panic_on_warn before calling panic()
  ubsan: check panic_on_warn
  drivers/misc/lkdtm/bugs.c: add arithmetic overflow and array bounds checks
  ubsan: split "bounds" checker from other options
  ubsan: add trap instrumentation option
  init/Kconfig: clean up ANON_INODES and old IO schedulers options
  kernel/gcov/fs.c: replace zero-length array with flexible-array member
  gcov: gcc_3_4: replace zero-length array with flexible-array member
  gcov: gcc_4_7: replace zero-length array with flexible-array member
  kernel/kmod.c: fix a typo "assuems" -> "assumes"
  reiserfs: clean up several indentation issues
  kallsyms: unexport kallsyms_lookup_name() and kallsyms_on_each_symbol()
  samples/hw_breakpoint: drop use of kallsyms_lookup_name()
  samples/hw_breakpoint: drop HW_BREAKPOINT_R when reporting writes
  fs/binfmt_elf.c: don't free interpreter's ELF pheaders on common path
  fs/binfmt_elf.c: allocate less for static executable
  ...

Pull NFS client updates from Trond Myklebust:
 "Highlights include:

  Stable fixes:
   - Fix a page leak in nfs_destroy_unlinked_subrequests()

   - Fix use-after-free issues in nfs_pageio_add_request()

   - Fix new mount code constant_table array definitions

   - finish_automount() requires us to hold 2 refs to the mount record

  Features:
   - Improve the accuracy of telldir/seekdir by using 64-bit cookies
     when possible.

   - Allow one RDMA active connection and several zombie connections to
     prevent blocking if the remote server is unresponsive.

   - Limit the size of the NFS access cache by default

   - Reduce the number of references to credentials that are taken by
     NFS

   - pNFS files and flexfiles drivers now support per-layout segment
     COMMIT lists.

   - Enable partial-file layout segments in the pNFS/flexfiles driver.

   - Add support for CB_RECALL_ANY to the pNFS flexfiles layout type

   - pNFS/flexfiles Report NFS4ERR_DELAY and NFS4ERR_GRACE errors from
     the DS using the layouterror mechanism.

  Bugfixes and cleanups:
   - SUNRPC: Fix krb5p regressions

   - Don't specify NFS version in "UDP not supported" error

   - nfsroot: set tcp as the default transport protocol

   - pnfs: Return valid stateids in nfs_layout_find_inode_by_stateid()

   - alloc_nfs_open_context() must use the file cred when available

   - Fix locking when dereferencing the delegation cred

   - Fix memory leaks in O_DIRECT when nfs_get_lock_context() fails

   - Various clean ups of the NFS O_DIRECT commit code

   - Clean up RDMA connect/disconnect

   - Replace zero-length arrays with C99-style flexible arrays"

* tag 'nfs-for-5.7-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (86 commits)
  NFS: Clean up process of marking inode stale.
  SUNRPC: Don't start a timer on an already queued rpc task
  NFS/pnfs: Reference the layout cred in pnfs_prepare_layoutreturn()
  NFS/pnfs: Fix dereference of layout cred in pnfs_layoutcommit_inode()
  NFS: Beware when dereferencing the delegation cred
  NFS: Add a module parameter to set nfs_mountpoint_expiry_timeout
  NFS: finish_automount() requires us to hold 2 refs to the mount record
  NFS: Fix a few constant_table array definitions
  NFS: Try to join page groups before an O_DIRECT retransmission
  NFS: Refactor nfs_lock_and_join_requests()
  NFS: Reverse the submission order of requests in __nfs_pageio_add_request()
  NFS: Clean up nfs_lock_and_join_requests()
  NFS: Remove the redundant function nfs_pgio_has_mirroring()
  NFS: Fix memory leaks in nfs_pageio_stop_mirroring()
  NFS: Fix a request reference leak in nfs_direct_write_clear_reqs()
  NFS: Fix use-after-free issues in nfs_pageio_add_request()
  NFS: Fix races nfs_page_group_destroy() vs nfs_destroy_unlinked_subrequests()
  NFS: Fix a page leak in nfs_destroy_unlinked_subrequests()
  NFS: Remove unused FLUSH_SYNC support in nfs_initiate_pgio()
  pNFS/flexfiles: Specify the layout segment range in LAYOUTGET
  ...

Pull f2fs updates from Jaegeuk Kim:
 "In this round, we've mainly focused on fixing bugs and addressing
  issues in recently introduced compression support.

  Enhancement:
   - add zstd support, and set LZ4 by default
   - add ioctl() to show # of compressed blocks
   - show mount time in debugfs
   - replace rwsem with spinlock
   - avoid lock contention in DIO reads

  Some major bug fixes wrt compression:
   - compressed block count
   - memory access and leak
   - remove obsolete fields
   - flag controls

  Other bug fixes and clean ups:
   - fix overflow when handling .flags in inode_info
   - fix SPO issue during resize FS flow
   - fix compression with fsverity enabled
   - potential deadlock when writing compressed pages
   - show missing mount options"

* tag 'f2fs-for-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (66 commits)
  f2fs: keep inline_data when compression conversion
  f2fs: fix to disable compression on directory
  f2fs: add missing CONFIG_F2FS_FS_COMPRESSION
  f2fs: switch discard_policy.timeout to bool type
  f2fs: fix to verify tpage before releasing in f2fs_free_dic()
  f2fs: show compression in statx
  f2fs: clean up dic->tpages assignment
  f2fs: compress: support zstd compress algorithm
  f2fs: compress: add .{init,destroy}_decompress_ctx callback
  f2fs: compress: fix to call missing destroy_compress_ctx()
  f2fs: change default compression algorithm
  f2fs: clean up {cic,dic}.ref handling
  f2fs: fix to use f2fs_readpage_limit() in f2fs_read_multi_pages()
  f2fs: xattr.h: Make stub helpers inline
  f2fs: fix to avoid double unlock
  f2fs: fix potential .flags overflow on 32bit architecture
  f2fs: fix NULL pointer dereference in f2fs_verity_work()
  f2fs: fix to clear PG_error if fsverity failed
  f2fs: don't call fscrypt_get_encryption_info() explicitly in f2fs_tmpfile()
  f2fs: don't trigger data flush in foreground operation
  ...

Pull UBI and UBIFS updates from Richard Weinberger:

 - Fix for memory leaks around UBIFS orphan handling

 - Fix for memory leaks around UBI fastmap

 - Remove zero-length array from ubi-media.h

 - Fix for TNC lookup in UBIFS orphan code

* tag 'for-linus-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs:
  ubi: ubi-media.h: Replace zero-length array with flexible-array member
  ubifs: Fix out-of-bounds memory access caused by abnormal value of node_len
  ubi: fastmap: Only produce the initial anchor PEB when fastmap is used
  ubi: fastmap: Free unused fastmap anchor peb during detach
  ubifs: ubifs_add_orphan: Fix a memory leak bug
  ubifs: ubifs_jnl_write_inode: Fix a memory leak bug
  ubifs: Fix ubifs_tnc_lookup() usage in do_kill_orphans()

Pull UML updates from Richard Weinberger:

 - New mode for time travel, external via virtio

 - Fixes for ubd to make sure no requests can get lost

 - Fixes for vector networking

 - Allow CONFIG_STATIC_LINK only when possible

 - Minor cleanups and fixes

* tag 'for-linus-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
  um: Remove some unnecessary NULL checks in vector_user.c
  um: vector: Avoid NULL ptr deference if transport is unset
  um: Make CONFIG_STATIC_LINK actually static
  um: Implement cpu_relax() as ndelay(1) for time-travel
  um: Implement ndelay/udelay in time-travel mode
  um: Implement time-travel=ext
  um: virtio: Implement VHOST_USER_PROTOCOL_F_INBAND_NOTIFICATIONS
  um: time-travel: Rewrite as an event scheduler
  um: Move timer-internal.h to non-shared
  hostfs: Use kasprintf() instead of fixed buffer formatting
  um: falloc.h needs to be directly included for older libc
  um: ubd: Retry buffer read on any kind of error
  um: ubd: Prevent buffer overrun on command completion
  um: Fix overlapping ELF segments when statically linked
  um: Delete never executed timer
  um: Don't overwrite ethtool driver version
  um: Fix len of file in create_pid_file
  um: Don't use console_drivers directly
  um: Cleanup CONFIG_IOSCHED_CFQ