When copying the EXTRA context our calculation of the amount of data we
need to copy is incorrect, we only calculate the amount of data needed
within uc_mcontext.__reserved, not taking account of the fixed portion
of the context. Add in the offset of the reserved data so that we copy
everything we should.

This will only cause test failures in cases where the last context in the
EXTRA context is smaller than the missing data since we don't currently
validate any of the register data and all the buffers we copy into are
statically allocated so default to zero meaning that if we walk beyond the
end of what we copied we'll encounter what looks like a context with magic
and length both 0 which is a valid terminator record.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230201-arm64-kselftest-full-extra-v1-1-93741f32dd29@kernel.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

The current signal handling tests for SME do not account for the fact that
unlike SVE all SME vector lengths are optional so we can't guarantee that
we will encounter the minimum possible VL, they will hang enumerating VLs
on such systems. Abort enumeration when we find the lowest VL in the newly
added ssve_za_regs test.

Fixes: bc69da5f ("kselftest/arm64: Verify simultaneous SSVE and ZA context generation")
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230131-arm64-kselftest-sig-sme-no-128-v1-2-d47c13dc8e1e@kernel.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

The current signal handling tests for SME do not account for the fact that
unlike SVE all SME vector lengths are optional so we can't guarantee that
we will encounter the minimum possible VL, they will hang enumerating VLs
on such systems. Abort enumeration when we find the lowest VL.

Fixes: 4963aeb3 ("kselftest/arm64: signal: Add SME signal handling tests")
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230131-arm64-kselftest-sig-sme-no-128-v1-1-d47c13dc8e1e@kernel.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

During early development a dependedncy was added on having FA64
available so we could use the full FPSIMD register set in the signal
handler.  Subsequently the ABI was finialised so the handler is run with
streaming mode disabled meaning this is redundant but the dependency was
never removed, do so now.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230131-arm64-kselfetest-ssve-fa64-v1-1-f418efcc2b60@kernel.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

When SVE was initially merged we chose to export the maximum VQ in the ABI
as being 512, rather more than the architecturally supported maximum of 16.
For the ptrace tests this results in us generating a lot of test cases and
hence log output which are redundant since a system couldn't possibly
support them. Instead only check values up to the current architectural
limit, plus one more so that we're covering the constraining of higher
vector lengths.

This makes no practical difference to our test coverage, speeds things up
on slower consoles and makes the output much more managable.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230111-arm64-kselftest-ptrace-max-vl-v1-1-8167f41d1ad8@kernel.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

It looks like a copy-paste error to describe the ZA buffer size using (the
number of P registers * the maximum size of a Z register). This doesn't
have practical impact though as we're always allocating enough space even
for the architectural maximum ZA storage, with SVL equals to 2048 bits.

Switch to use ZA_SIG_REGS_SIZE(SVE_VQ_MAX). setup_za() will need to
initialize two 64MB arraies with this change and can be optimized later (if
someone complain).
Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20221218092942.1940-2-yuzenghui@huawei.comSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

It was introduced in commit b77e995e ("kselftest/arm64: Add a test
program to exercise the syscall ABI") but never actually used. Remove it.
Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20221218092942.1940-1-yuzenghui@huawei.comSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

Add a test that generates SSVE and ZA context in a single signal frame to
ensure that nothing is going wrong in that case for any reason.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230117-arm64-test-ssve-za-v1-2-203c00150154@kernel.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

Streaming mode SVE signal context should have SVE_SIG_FLAG_SM set but we
were not actually validating this. Add a check.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230117-arm64-test-ssve-za-v1-1-203c00150154@kernel.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

There's a stray comment in the MTE test Makefile which documents
something that's since been removed, delete it.
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/20230111-arm64-kselftest-clang-v1-6-89c69d377727@kernel.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

The assembly portions of the MTE selftests need to be built with a
toolchain supporting MTE.  Since we support GCC versions that lack MTE
support we have logic to suppress build of these tests when using such a
toolchain but that logic is broken for LLVM=1 builds, it uses CC but CC
is only set for LLVM builds in libs.mk which needs to be included after
we have selected which test programs to build.

Since all supported LLVM versions support MTE we can simply assume MTE
support when LLVM is set.  This is not a thing of beauty but it does the
job.
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/20230111-arm64-kselftest-clang-v1-5-89c69d377727@kernel.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

When building with clang the toolchain refuses to link the signals
testcases since the assembly code has a reference to current which has
no initialiser so is placed in the BSS:

  /tmp/signals-af2042.o: in function `fake_sigreturn':
  <unknown>:51:(.text+0x40): relocation truncated to fit: R_AARCH64_LD_PREL_LO19 against symbol `current' defined in .bss section in /tmp/test_signals-ec1160.o

Since the first statement in main() initialises current we may as well
fix this by moving the initialisation to build time so the variable
doesn't end up in the BSS.
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/20230111-arm64-kselftest-clang-v1-4-89c69d377727@kernel.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

The signal Makefile rules pass all the dependencies for each executable,
including headers, to the compiler which GCC is happy enough with but
clang rejects:

   clang --target=aarch64-none-linux-gnu -fintegrated-as -Wall -O2 -g -I/home/broonie/git/linux/tools/testing/selftests/ -isystem /home/broonie/git/linux/usr/include -D_GNU_SOURCE -std=gnu99 -I.  test_signals.c test_signals_utils.c testcases/testcases.c signals.S testcases/fake_sigreturn_bad_magic.c test_signals.h test_signals_utils.h testcases/testcases.h -o testcases/fake_sigreturn_bad_magic
  clang: error: cannot specify -o when generating multiple output files

This happens because clang gets confused about what to do with the
header files, failing to identify them as source.  This is not amazing
behaviour on clang's part and should ideally be fixed but even if that
happens we'd still need a new clang release so let's instead rework the
Makefile so we use variables for the lists of header and source files,
allowing us to only pass the source files to the compiler and keep clang
happy.

As a bonus the resulting Makefile is a bit easier to read.
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/20230111-arm64-kselftest-clang-v1-3-89c69d377727@kernel.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

There are a number of freestanding static executables used in floating
point testing that have no runtime at all. These all define the main entry
point as:

   .globl _start
   function _start
   _start:

but clang's integrated assembler complains that:

  error: symbol '_start' is already defined

due to having both a label and function directive. Remove the label to
allow building with clang.

No functional change.
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/20230111-arm64-kselftest-clang-v1-2-89c69d377727@kernel.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

The .pushsection directive used to store the strings used with the .puts
macro in the floating point helpers does not provide a section type but
according to the gas documentation this should be mandatory and with the
clang built in as it actually is. Provide one so that we can build these
tests with LLVM=1.

No functional change.
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/20230111-arm64-kselftest-clang-v1-1-89c69d377727@kernel.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

The BTI selftests are built both with and without BTI support, validating
both the generation of BTI signals as expected for binaries without BTI
support. Both versions of the binary currently skip all their tests when
the system does not support BTI, however this is excessive since we do have
a defined ABI for how the programs should function in this case (especially
for the non-BTI binary). Update the test program to run all the tests
unconditionally, adding a runtime adjustment of the expected results on
systems that don't support BTI where we currently handle the build time
case.

The tests all use HINT space instructions, BTI itself is a HINT as is
are the PAC instructions that function as landing pads, so nothing in the
tests depends on support for BTI in the kernel or hardware.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230110-arm64-bti-selftest-skip-v1-2-143ecdc84567@kernel.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

Currently when skipping tests in the BTI testsuite we assign the same
number to every test since we forget to increment the current test number
as we skip, causing warnings about not running the expected test count and
potentially otherwise confusing result parsers. Fix this by adding an
appropriate increment.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230110-arm64-bti-selftest-skip-v1-1-143ecdc84567@kernel.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

As documented in issue C215 in the known issues list for DDI0487I.a [1] Arm
will be making a retroactive change to SVE to remove the possibility of
selecting non power of two vector lengths. This has no impact on existing
physical implementations but most virtual implementations have implemented
the full range of permissible vector lengths. Given how demanding fp-stress
is for these implementations update to only attempt to enumerate the power
of two vector lengths, reducing the load created on existing virtual
implementations and only exercising the functionality that will be seen in
physical implementations.

[1] https://developer.arm.com/documentation/102105/ia-00/Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20221220-arm64-fp-stress-pow2-v1-1-d0ce756b57af@kernel.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

As documented in issue C215 in the known issues list for DDI0487I.a [1] Arm
will be making a retroactive change to SVE to remove the possibility of
selecting non power of two vector lengths. This has no impact on existing
physical implementations but most virtual implementations have implemented
the full range of permissible vector lengths.

Since virtual implementations are noticeably slow in general and the larger
vector lengths amplify the issue there's a useful improvement in runtime
from only covering the vector lengths that will exist in practical systems,
adjust our enumeration accordingly. We have other tests that aim to cover
the enumeration interfaces.

For symmetry we apply the same change to the eumeration for SME vector
lengths, though the power of two restriction was already present for SME
so there is no impact on the set of vector lengths tested.

[1] https://developer.arm.com/documentation/102105/ia-00/Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20221223-arm64-syscall-abi-sme-only-v1-4-4fabfbd62087@kernel.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

Currently syscall-abi only covers SME in the case where the system supports
SVE however it is architecturally valid to support SME without SVE. Update
the program to cover this case, this requires adjustments in the code to
check for SVCR.SM being set when deciding if we're handling the FPSIMD or
SVE registers and the addition of new test cases for the SME only case.

Note that in the SME only case we should not save the SVE registers after a
syscall since even if we were in streaming mode and therefore set them the
syscall should have exited streaming mode, we check that we have done so by
looking at SVCR.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20221223-arm64-syscall-abi-sme-only-v1-3-4fabfbd62087@kernel.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

Currently syscall-abi not only enumerates the SVE VLs twice while working
out how many tests are planned, it also repeats the enumeration process
while doing the actual tests. Record the VLs when we enumerate and use that
list when we are performing the tests, removing some duplicated logic.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20221223-arm64-syscall-abi-sme-only-v1-2-4fabfbd62087@kernel.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

SME does not mandate any specific VL so we may not have 128 bit SME but
the algorithm used for enumerating VLs assumes that we will. Add the
required check to ensure that the algorithm terminates.

Fixes: 43e3f855 ("kselftest/arm64: Add SME support to syscall ABI test")
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20221223-arm64-syscall-abi-sme-only-v1-1-4fabfbd62087@kernel.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

Pull powerpc fixes from Michael Ellerman:

 - Three fixes for various bogosity in our linker script, revealed
   by the recent commit which changed discard behaviour with some
   toolchains.

* tag 'powerpc-6.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/vmlinux.lds: Don't discard .comment
  powerpc/vmlinux.lds: Don't discard .rela* for relocatable builds
  powerpc/vmlinux.lds: Define RUNTIME_DISCARD_EXIT

Pull memblock fixes from Mike Rapoport:
 "Small fixes in kernel-doc and tests:

   - Fix kernel-doc for memblock_phys_free() to use correct names for
     the counterpart allocation methods

   - Fix compilation error in memblock tests"

* tag 'fixes-2023-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
  memblock: Fix doc for memblock_phys_free
  memblock tests: Fix compilation error.

Pull NFS client fixes from Trond Myklebust:

 - Fix a race in the RPCSEC_GSS upcall code that causes hung RPC calls

 - Fix a broken coalescing test in the pNFS file layout driver

 - Ensure that the access cache rcu path also applies the login test

 - Fix up for a sparse warning

* tag 'nfs-for-6.2-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  NFS: Fix up a sparse warning
  NFS: Judge the file access cache's timestamp in rcu path
  pNFS/filelayout: Fix coalescing test for single DS
  SUNRPC: ensure the matching upcall is in-flight upon downcall

Pull cifs fixes from Steve French:
 "cifs/smb3 client fixes:

   - two multichannel fixes

   - three reconnect fixes

   - unmap fix"

* tag '6.2-rc2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: fix interface count calculation during refresh
  cifs: refcount only the selected iface during interface update
  cifs: protect access of TCP_Server_Info::{dstaddr,hostname}
  cifs: fix race in assemble_neg_contexts()
  cifs: ignore ipc reconnect failures during dfs failover
  cifs: Fix kmap_local_page() unmapping

Pull devicetree fixes from Rob Herring:

 - Fix DT memory scanning for some MIPS boards when memory is not
   specified in DT

 - Redo CONFIG_CMDLINE* handling for missing /chosen node. The first
   attempt broke PS3 (and possibly other PPC platforms).

 - Fix constraints in QCom Soundwire schema

* tag 'devicetree-fixes-for-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  of: fdt: Honor CONFIG_CMDLINE* even without /chosen node, take 2
  Revert "of: fdt: Honor CONFIG_CMDLINE* even without /chosen node"
  dt-bindings: soundwire: qcom,soundwire: correct sizes related to number of ports
  of/fdt: run soc memory setup when early_init_dt_scan_memory fails

Pull USB fixes from Greg KH:
 "Here are some small USB driver fixes for 6.2-rc3 that resolve some
  reported issues. They include:

   - of-reported ulpi problem, so the offending commit is reverted

   - dwc3 driver bugfixes for recent changes

   - fotg210 fixes

  Most of these have been in linux-next for a while, the last few were
  on the mailing list for a long time and passed all the 0-day bot
  testing so all should be fine with them as well"

* tag 'usb-6.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: dwc3: gadget: Ignore End Transfer delay on teardown
  usb: dwc3: xilinx: include linux/gpio/consumer.h
  usb: fotg210-udc: fix error return code in fotg210_udc_probe()
  usb: fotg210: fix OTG-only build
  Revert "usb: ulpi: defer ulpi_register on ulpi_read_id timeout"

Pull rdma fixes from Jason Gunthorpe:
 "Most noticeable is that Yishai found a big data corruption regression
  due to a change in the scatterlist:

   - Do not wrongly combine non-contiguous pages in scatterlist

   - Fix compilation warnings on gcc 13

   - Oops when using some mlx5 stats

   - Bad enforcement of atomic responder resources in mlx5"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  lib/scatterlist: Fix to merge contiguous pages into the last SG properly
  RDMA/mlx5: Fix validation of max_rd_atomic caps for DC
  RDMA/mlx5: Fix mlx5_ib_get_hw_stats when used for device
  RDMA/srp: Move large values to a new enum for gcc13

Merge tag 'kbuild-fixes-v6.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - Fix single *.ko build

 - Fix module builds when vmlinux.o or Module.symver is missing

* tag 'kbuild-fixes-v6.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: readd -w option when vmlinux.o or Module.symver is missing
  kbuild: fix single *.ko build

Pull drm fixes from Daniel Vetter:
 "Still not much, but more than last week. Dave should be back next week
  from the beaching.

  drivers:
   - i915-gvt fixes
   - amdgpu/kfd fixes
   - panfrost bo refcounting fix
   - meson afbc corruption fix
   - imx plane width fix

  core:
   - drm/sched fixes
   - drm/mm kunit test fix
   - dma-buf export error handling fixes"

* tag 'drm-fixes-2023-01-06' of git://anongit.freedesktop.org/drm/drm:
  Revert "drm/amd/display: Enable Freesync Video Mode by default"
  drm/i915/gvt: fix double free bug in split_2MB_gtt_entry
  drm/i915/gvt: use atomic operations to change the vGPU status
  drm/i915/gvt: fix vgpu debugfs clean in remove
  drm/i915/gvt: fix gvt debugfs destroy
  drm/i915: unpin on error in intel_vgpu_shadow_mm_pin()
  drm/amd/display: Uninitialized variables causing 4k60 UCLK to stay at DPM1 and not DPM0
  drm/amdkfd: Fix kernel warning during topology setup
  drm/scheduler: Fix lockup in drm_sched_entity_kill()
  drm/imx: ipuv3-plane: Fix overlay plane width
  drm/scheduler: Fix lockup in drm_sched_entity_kill()
  drm/virtio: Fix memory leak in virtio_gpu_object_create()
  drm/meson: Reduce the FIFO lines held when AFBC is not used
  drm/tests: reduce drm_mm_test stack usage
  drm/panfrost: Fix GEM handle creation ref-counting
  drm/plane-helper: Add the missing declaration of drm_atomic_state
  dma-buf: fix dma_buf_export init order v2

TPM 1 is sometimes broken across system suspends, due to races or
locking issues or something else that haven't been diagnosed or fixed
yet, most likely having to do with concurrent reads from the TPM's
hardware random number generator driver. These issues prevent the system
from actually suspending, with errors like:

  tpm tpm0: A TPM error (28) occurred continue selftest
  ...
  tpm tpm0: A TPM error (28) occurred attempting get random
  ...
  tpm tpm0: Error (28) sending savestate before suspend
  tpm_tis 00:08: PM: __pnp_bus_suspend(): tpm_pm_suspend+0x0/0x80 returns 28
  tpm_tis 00:08: PM: dpm_run_callback(): pnp_bus_suspend+0x0/0x10 returns 28
  tpm_tis 00:08: PM: failed to suspend: error 28
  PM: Some devices failed to suspend, or early wake event detected

This issue was partially fixed by 23393c64 ("char: tpm: Protect
tpm_pm_suspend with locks"), in a last minute 6.1 commit that Linus took
directly because the TPM maintainers weren't available. However, it
seems like this just addresses the most common cases of the bug, rather
than addressing it entirely. So there are more things to fix still,
apparently.

In lieu of actually fixing the underlying bug, just allow system suspend
to continue, so that laptops still go to sleep fine. Later, this can be
reverted when the real bug is fixed.

Link: https://lore.kernel.org/lkml/7cbe96cf-e0b5-ba63-d1b4-f63d2e826efa@suse.cz/
Cc: stable@vger.kernel.org # 6.1+
Reported-by: Vlastimil Babka <vbabka@suse.cz>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Luigi Semenzato <semenzato@chromium.org>
Cc: Peter Huewe <peterhuewe@gmx.de>
Cc: Jarkko Sakkinen <jarkko@kernel.org>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Johannes Altmanninger <aclopte@gmail.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Commit 55d1cbbb ("hfs/hfsplus: use WARN_ON for sanity check") fixed
a build warning by turning a comment into a WARN_ON(), but it turns out
that syzbot then complains because it can trigger said warning with a
corrupted hfs image.

The warning actually does warn about a bad situation, but we are much
better off just handling it as the error it is.  So rather than warn
about us doing bad things, stop doing the bad things and return -EIO.

While at it, also fix a memory leak that was introduced by an earlier
fix for a similar syzbot warning situation, and add a check for one case
that historically wasn't handled at all (ie neither comment nor
subsequent WARN_ON).

Reported-by: syzbot+7bb7cd3595533513a9e7@syzkaller.appspotmail.com
Fixes: 55d1cbbb ("hfs/hfsplus: use WARN_ON for sanity check")
Fixes: 8d824e69 ("hfs: fix OOB Read in __hfs_brec_find")
Link: https://lore.kernel.org/lkml/000000000000dbce4e05f170f289@google.com/Tested-by: Michael Schmitz <schmitzmic@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Viacheslav Dubeyko <slava@dubeyko.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Pull block fixes from Jens Axboe:
 "The big change here is obviously the revert of the pktcdvd driver
  removal. Outside of that, just minor tweaks. In detail:

   - Re-instate the pktcdvd driver, which necessitates adding back
     bio_copy_data_iter() and the fops->devnode() hook for now (me)

   - Fix for splitting of a bio marked as NOWAIT, causing either nowait
     reads or writes to error with EAGAIN even if parts of the IO
     completed (me)

   - Fix for ublk, punting management commands to io-wq as they can all
     easily block for extended periods of time (Ming)

   - Removal of SRCU dependency for the block layer (Paul)"

* tag 'block-2023-01-06' of git://git.kernel.dk/linux:
  block: Remove "select SRCU"
  Revert "pktcdvd: remove driver."
  Revert "block: remove devnode callback from struct block_device_operations"
  Revert "block: bio_copy_data_iter"
  ublk: honor IO_URING_F_NONBLOCK for handling control command
  block: don't allow splitting of a REQ_NOWAIT bio
  block: handle bio_split_to_limits() NULL return

Pull io_uring fixes from Jens Axboe:
 "A few minor fixes that should go into the 6.2 release:

   - Fix for a memory leak in io-wq worker creation, if we ultimately
     end up canceling the worker creation before it gets created (me)

   - lockdep annotations for the CQ locking (Pavel)

   - A regression fix for CQ timeout handling (Pavel)

   - Ring pinning around deferred task_work fix (Pavel)

   - A trivial member move in struct io_ring_ctx, saving us some memory
     (me)"

* tag 'io_uring-2023-01-06' of git://git.kernel.dk/linux:
  io_uring: fix CQ waiting timeout handling
  io_uring: move 'poll_multi_queue' bool in io_ring_ctx
  io_uring: lockdep annotate CQ locking
  io_uring: pin context while queueing deferred tw
  io_uring/io-wq: free worker if task_work creation is canceled

Pull arm TIF_NOTIFY_SIGNAL fixup from Jens Axboe:
 "Hui Tang reported a performance regressions with _TIF_WORK_MASK in
  newer kernels, which he tracked to a change that went into 5.11. After
  this change, we'll call do_work_pending() more often than we need to,
  because we're now testing bits 0..15 rather than just 0..7.

  Shuffle the bits around to avoid this"

* tag 'tif-notify-signal-2023-01-06' of git://git.kernel.dk/linux:
  ARM: renumber bits related to _TIF_WORK_MASK

Pull ceph fixes from Ilya Dryomov:
 "Two file locking fixes from Xiubo"

* tag 'ceph-for-6.2-rc3' of https://github.com/ceph/ceph-client:
  ceph: avoid use-after-free in ceph_fl_release_lock()
  ceph: switch to vfs_inode_has_locks() to fix file lock bug

Pull UDF fixes from Jan Kara:
 "Two fixups of the UDF changes that went into 6.2-rc1"

* tag 'fixes_for_v6.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  udf: initialize newblock to 0
  udf: Fix extension of the last extent in the file

Pull btrfs fixes from David Sterba:
 "A few more regression and regular fixes:

   - regressions:
       - fix assertion condition using = instead of ==
       - fix false alert on bad tree level check
       - fix off-by-one error in delalloc search during lseek

   - fix compat ro feature check at read-write remount

   - handle case when read-repair happens with ongoing device replace

   - updated error messages"

* tag 'for-6.2-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: fix compat_ro checks against remount
  btrfs: always report error in run_one_delayed_ref()
  btrfs: handle case when repair happens with dev-replace
  btrfs: fix off-by-one in delalloc search during lseek
  btrfs: fix false alert on bad tree level check
  btrfs: add error message for metadata level mismatch
  btrfs: fix ASSERT em->len condition in btrfs_get_extent