Under the current code, when cifs_readpage_worker is called, the call
contract is that the callee should unlock the page. This is documented
in the read_folio section of Documentation/filesystems/vfs.rst as:

> The filesystem should unlock the folio once the read has completed,
> whether it was successful or not.

Without this change, when fscache is in use and cache hit occurs during
a read, the page lock is leaked, producing the following stack on
subsequent reads (via mmap) to the page:

$ cat /proc/3890/task/12864/stack
[<0>] folio_wait_bit_common+0x124/0x350
[<0>] filemap_read_folio+0xad/0xf0
[<0>] filemap_fault+0x8b1/0xab0
[<0>] __do_fault+0x39/0x150
[<0>] do_fault+0x25c/0x3e0
[<0>] __handle_mm_fault+0x6ca/0xc70
[<0>] handle_mm_fault+0xe9/0x350
[<0>] do_user_addr_fault+0x225/0x6c0
[<0>] exc_page_fault+0x84/0x1b0
[<0>] asm_exc_page_fault+0x27/0x30

This requires a reboot to resolve; it is a deadlock.

Note however that the call to cifs_readpage_from_fscache does mark the
page clean, but does not free the folio lock. This happens in
__cifs_readpage_from_fscache on success. Releasing the lock at that
point however is not appropriate as cifs_readahead also calls
cifs_readpage_from_fscache and *does* unconditionally release the lock
after its return. This change therefore effectively makes
cifs_readpage_worker work like cifs_readahead.
Signed-off-by: Russell Harmon <russ@har.mn>
Acked-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Reviewed-by: David Howells <dhowells@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>

With deferred close we can have closes that race with lease breaks,
and so with the current checks for whether to send the lease response,
oplock_response(), this can mean that an unmount (kill_sb) can occur
just before we were checking if the tcon->ses is valid.  See below:

[Fri Aug  4 04:12:50 2023] RIP: 0010:cifs_oplock_break+0x1f7/0x5b0 [cifs]
[Fri Aug  4 04:12:50 2023] Code: 7d a8 48 8b 7d c0 c0 e9 02 48 89 45 b8 41 89 cf e8 3e f5 ff ff 4c 89 f7 41 83 e7 01 e8 82 b3 03 f2 49 8b 45 50 48 85 c0 74 5e <48> 83 78 60 00 74 57 45 84 ff 75 52 48 8b 43 98 48 83 eb 68 48 39
[Fri Aug  4 04:12:50 2023] RSP: 0018:ffffb30607ddbdf8 EFLAGS: 00010206
[Fri Aug  4 04:12:50 2023] RAX: 632d223d32612022 RBX: ffff97136944b1e0 RCX: 0000000080100009
[Fri Aug  4 04:12:50 2023] RDX: 0000000000000001 RSI: 0000000080100009 RDI: ffff97136944b188
[Fri Aug  4 04:12:50 2023] RBP: ffffb30607ddbe58 R08: 0000000000000001 R09: ffffffffc08e0900
[Fri Aug  4 04:12:50 2023] R10: 0000000000000001 R11: 000000000000000f R12: ffff97136944b138
[Fri Aug  4 04:12:50 2023] R13: ffff97149147c000 R14: ffff97136944b188 R15: 0000000000000000
[Fri Aug  4 04:12:50 2023] FS:  0000000000000000(0000) GS:ffff9714f7c00000(0000) knlGS:0000000000000000
[Fri Aug  4 04:12:50 2023] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[Fri Aug  4 04:12:50 2023] CR2: 00007fd8de9c7590 CR3: 000000011228e000 CR4: 0000000000350ef0
[Fri Aug  4 04:12:50 2023] Call Trace:
[Fri Aug  4 04:12:50 2023]  <TASK>
[Fri Aug  4 04:12:50 2023]  process_one_work+0x225/0x3d0
[Fri Aug  4 04:12:50 2023]  worker_thread+0x4d/0x3e0
[Fri Aug  4 04:12:50 2023]  ? process_one_work+0x3d0/0x3d0
[Fri Aug  4 04:12:50 2023]  kthread+0x12a/0x150
[Fri Aug  4 04:12:50 2023]  ? set_kthread_struct+0x50/0x50
[Fri Aug  4 04:12:50 2023]  ret_from_fork+0x22/0x30
[Fri Aug  4 04:12:50 2023]  </TASK>

To fix this change the ordering of the checks before sending the oplock_response
to first check if the openFileList is empty.

Fixes: da787d5b ("SMB3: Do not send lease break acknowledgment if all file handles have been closed")
Suggested-by: Bharath SM <bharathsm@microsoft.com>
Reviewed-by: Bharath SM <bharathsm@microsoft.com>
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>

Pull smb client fix from Steve French:

 - Fix DFS interlink problem (different namespace)

* tag '6.5-rc4-smb3-client-fix' of git://git.samba.org/sfrench/cifs-2.6:
  smb: client: fix dfs link mount against w2k8

Pull powerpc fixes from Michael Ellerman:

 - Fix vmemmap altmap boundary check which could cause memory hotunplug
   failure

 - Create a dummy stackframe to fix ftrace stack unwind

 - Fix secondary thread bringup for Book3E ELFv2 kernels

 - Use early_ioremap/unmap() in via_calibrate_decr()

Thanks to Aneesh Kumar K.V, Benjamin Gray, Christophe Leroy, David
Hildenbrand, and Naveen N Rao.

* tag 'powerpc-6.5-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/powermac: Use early_* IO variants in via_calibrate_decr()
  powerpc/64e: Fix secondary thread bringup for ELFv2 kernels
  powerpc/ftrace: Create a dummy stackframe to fix stack unwind
  powerpc/mm/altmap: Fix altmap boundary check

Pull parisc architecture fixes from Helge Deller:

 - early fixmap preallocation to fix boot failures on kernel >= 6.4

 - remove DMA leftover code in parport_gsc

 - drop old comments and code style fixes

* tag 'parisc-for-6.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: unaligned: Add required spaces after ','
  parport: gsc: remove DMA leftover code
  parisc: pci-dma: remove unused and dead EISA code and comment
  parisc/mm: preallocate fixmap page tables at init

Pull clk fixes from Stephen Boyd:
 "A few clk driver fixes for some SoC clk drivers:

   - Change a usleep() to udelay() to avoid scheduling while atomic in
     the Amlogic PLL code

   - Revert a patch to the Mediatek MT8183 driver that caused an
     out-of-bounds write

   - Return the right error value when devm_of_iomap() fails in
     imx93_clocks_probe()

   - Constrain the Kconfig for the fixed mmio clk so that it depends on
     HAS_IOMEM and can't be compiled on architectures such as s390"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: fixed-mmio: make COMMON_CLK_FIXED_MMIO depend on HAS_IOMEM
  clk: imx93: Propagate correct error in imx93_clocks_probe()
  clk: mediatek: mt8183: Add back SSPM related clocks
  clk: meson: change usleep_range() to udelay() for atomic context

Merge tag 'hyperv-fixes-signed-20230804' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

Pull hyperv fixes from Wei Liu:

 - Fix a bug in a python script for Hyper-V (Ani Sinha)

 - Workaround a bug in Hyper-V when IBT is enabled (Michael Kelley)

 - Fix an issue parsing MP table when Linux runs in VTL2 (Saurabh
   Sengar)

 - Several cleanup patches (Nischala Yelchuri, Kameron Carr, YueHaibing,
   ZhiHu)

* tag 'hyperv-fixes-signed-20230804' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
  Drivers: hv: vmbus: Remove unused extern declaration vmbus_ontimer()
  x86/hyperv: add noop functions to x86_init mpparse functions
  vmbus_testing: fix wrong python syntax for integer value comparison
  x86/hyperv: fix a warning in mshyperv.h
  x86/hyperv: Disable IBT when hypercall page lacks ENDBR instruction
  x86/hyperv: Improve code for referencing hyperv_pcpu_input_arg
  Drivers: hv: Change hv_free_hyperv_page() to take void * argument

Pull RISC-V fixes from Palmer Dabbelt:

 - A pair of fixes for build-related failures in the selftests

 - A fix for a sparse warning in acpi_os_ioremap()

 - A fix to restore the kernel PA offset in vmcoreinfo, to fix crash
   handling

* tag 'riscv-for-linus-6.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  Documentation: kdump: Add va_kernel_pa_offset for RISCV64
  riscv: Export va_kernel_pa_offset in vmcoreinfo
  RISC-V: ACPI: Fix acpi_os_ioremap to return iomem address
  selftests: riscv: Fix compilation error with vstate_exec_nolibc.c
  selftests/riscv: fix potential build failure during the "emit_tests" step

Pull power management fix from Rafael Wysocki:
 "Fix a sparse warning triggered by the TPMI interface recently added to
  the Intel RAPL power capping driver (Zhang Rui)"

* tag 'pm-6.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  powercap: intel_rapl: Fix a sparse warning in TPMI interface

Pull arm64 fixes from Catalin Marinas:
 "More SVE/SME fixes for ptrace() and for the (potentially future) case
  where SME is implemented in hardware without SVE support"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64/fpsimd: Sync and zero pad FPSIMD state for streaming SVE
  arm64/fpsimd: Sync FPSIMD state with SVE for SME only systems
  arm64/ptrace: Don't enable SVE when setting streaming SVE
  arm64/ptrace: Flush FP state when setting ZT0
  arm64/fpsimd: Clear SME state in the target task when setting the VL

Pull mtd fixes from Miquel Raynal:
 "Raw NAND fixes:
   - fsl_upm: Fix an off-by one test in fun_exec_op()
   - Rockchip:
       - Align hwecc vs. raw page helper layouts
       - Fix oobfree offset and description
   - Meson: Fix OOB available bytes for ECC
   - Omap ELM: Fix incorrect type in assignment

  SPI-NOR fix:
   - Avoid holes in struct spi_mem_op

  Hyperbus fix:
   - Add Tudor as reviewer in MAINTAINERS

  SPI-NAND fixes:
   - Winbond and Toshiba: Fix ecc_get_status"

* tag 'mtd/fixes-for-6.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
  mtd: rawnand: fsl_upm: Fix an off-by one test in fun_exec_op()
  mtd: spi-nor: avoid holes in struct spi_mem_op
  MAINTAINERS: Add myself as reviewer for HYPERBUS
  mtd: rawnand: rockchip: Align hwecc vs. raw page helper layouts
  mtd: rawnand: rockchip: fix oobfree offset and description
  mtd: rawnand: meson: fix OOB available bytes for ECC
  mtd: rawnand: omap_elm: Fix incorrect type in assignment
  mtd: spinand: winbond: Fix ecc_get_status
  mtd: spinand: toshiba: Fix ecc_get_status

Pull drm fixes from Dave Airlie:
 "Small set of fixes this week, i915 and a few misc ones. I didn't see
  an amd pull so maybe next week it'll have a few more on that driver.

  ttm:
   - NULL ptr deref fix

  panel:
   - add missing MODULE_DEVICE_TABLE

  imx/ipuv3:
   - timing fix

  i915:
   - Fix bug in getting msg length in AUX CH registers handler
   - Gen12 AUX invalidation fixes
   - Fix premature release of request's reusable memory"

* tag 'drm-fixes-2023-08-04' of git://anongit.freedesktop.org/drm/drm:
  drm/panel: samsung-s6d7aa0: Add MODULE_DEVICE_TABLE
  drm/i915: Fix premature release of request's reusable memory
  drm/i915/gt: Support aux invalidation on all engines
  drm/i915/gt: Poll aux invalidation register bit on invalidation
  drm/i915/gt: Enable the CCS_FLUSH bit in the pipe control and in the CS
  drm/i915/gt: Rename flags with bit_group_X according to the datasheet
  drm/i915/gt: Ensure memory quiesced before invalidation
  drm/i915: Add the gen12_needs_ccs_aux_inv helper
  drm/i915/gt: Cleanup aux invalidation registers
  drm/i915/gvt: Fix bug in getting msg length in AUX CH registers handler
  drm/imx/ipuv3: Fix front porch adjustment upon hactive aligning
  drm/ttm: check null pointer before accessing when swapping

Pull ceph fixes from Ilya Dryomov:
 "Two patches to improve RBD exclusive lock interaction with
  osd_request_timeout option and another fix to reduce the potential for
  erroneous blocklisting -- this time in CephFS. All going to stable"

* tag 'ceph-for-6.5-rc5' of https://github.com/ceph/ceph-client:
  libceph: fix potential hang in ceph_osdc_notify()
  rbd: prevent busy loop when requesting exclusive lock
  ceph: defer stopping mdsc delayed_work

In commit 20ea1e7d ("file: always lock position for
FMODE_ATOMIC_POS") we ended up always taking the file pos lock, because
pidfd_getfd() could get a reference to the file even when it didn't have
an elevated file count due to threading of other sharing cases.

But Mateusz Guzik reports that the extra locking is actually measurable,
so let's re-introduce the optimization, and only force the locking for
directory traversal.

Directories need the lock for correctness reasons, while regular files
only need it for "POSIX semantics".  Since pidfd_getfd() is about
debuggers etc special things that are _way_ outside of POSIX, we can
relax the rules for that case.
Reported-by: Mateusz Guzik <mjguzik@gmail.com>
Cc: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/linux-fsdevel/20230803095311.ijpvhx3fyrbkasul@f/Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

We have a function sve_sync_from_fpsimd_zeropad() which is used by the
ptrace code to update the SVE state when the user writes to the the
FPSIMD register set.  Currently this checks that the task has SVE
enabled but this will miss updates for tasks which have streaming SVE
enabled if SVE has not been enabled for the thread, also do the
conversion if the task has streaming SVE enabled.

Fixes: e12310a0 ("arm64/sme: Implement ptrace support for streaming mode SVE registers")
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230803-arm64-fix-ptrace-ssve-no-sve-v1-3-49df214bfb3e@kernel.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

Currently we guard FPSIMD/SVE state conversions with a check for the system
supporting SVE but SME only systems may need to sync streaming mode SVE
state so add a check for SME support too.  These functions are only used
by the ptrace code.

Fixes: e12310a0 ("arm64/sme: Implement ptrace support for streaming mode SVE registers")
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230803-arm64-fix-ptrace-ssve-no-sve-v1-2-49df214bfb3e@kernel.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

Systems which implement SME without also implementing SVE are
architecturally valid but were not initially supported by the kernel,
unfortunately we missed one issue in the ptrace code.

The SVE register setting code is shared between SVE and streaming mode
SVE. When we set full SVE register state we currently enable TIF_SVE
unconditionally, in the case where streaming SVE is being configured on a
system that supports vanilla SVE this is not an issue since we always
initialise enough state for both vector lengths but on a system which only
support SME it will result in us attempting to restore the SVE vector
length after having set streaming SVE registers.

Fix this by making the enabling of SVE conditional on setting SVE vector
state. If we set streaming SVE state and SVE was not already enabled this
will result in a SVE access trap on next use of normal SVE, this will cause
us to flush our register state but this is fine since the only way to
trigger a SVE access trap would be to exit streaming mode which will cause
the in register state to be flushed anyway.

Fixes: e12310a0 ("arm64/sme: Implement ptrace support for streaming mode SVE registers")
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230803-arm64-fix-ptrace-ssve-no-sve-v1-1-49df214bfb3e@kernel.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

Merge tag 'drm-intel-fixes-2023-08-03' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- Fix bug in getting msg length in AUX CH registers handler [gvt] (Yan Zhao)
- Gen12 AUX invalidation fixes [gt] (Andi Shyti, Jonathan Cavitt)
- Fix premature release of request's reusable memory (Janusz Krzysztofik)

- Merge tag 'gvt-fixes-2023-08-02' of https://github.com/intel/gvt-linux into drm-intel-fixes (Tvrtko Ursulin)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ZMtkxWGuUKpaRMmo@tursulin-desk

A NULL pointer dereference fix for TTM, a timings fix for imx/ipuv3 and
the addition of a MODULE_DEVICE_TABLE for the samsung-s6d7aa0 panel.
Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <mripard@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ztfogof2dhtlvjwe73mvd2jp5kbldhkkav7k5culuseqblwpti@qfobohwx3c3j

Merge tag 'perf-tools-fixes-for-v6.5-2-2023-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools

Pull perf tools fixes from Arnaldo Carvalho de Melo:

 - Fix segfault in the powerpc specific arch_skip_callchain_idx
   function. The patch doing the reference count init/exit that went
   into 6.5 missed this function.

 - Fix regression reading the arm64 PMU cpu slots in sysfs, a patch
   removing some code duplication ended up duplicating the /sysfs prefix
   for these files.

 - Fix grouping of events related to topdown, addressing a regression on
   the CSV output produced by 'perf stat' noticed on the downstream tool
   toplev.

 - Fix the uprobe_from_different_cu 'perf test' entry, it is failing
   when gcc isn't available, so we need to check that and skip the test
   if it is not installed.

* tag 'perf-tools-fixes-for-v6.5-2-2023-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools:
  perf test parse-events: Test complex name has required event format
  perf pmus: Create placholder regardless of scanning core_only
  perf test uprobe_from_different_cu: Skip if there is no gcc
  perf parse-events: Only move force grouped evsels when sorting
  perf parse-events: When fixing group leaders always set the leader
  perf parse-events: Extra care around force grouped events
  perf callchain powerpc: Fix addr location init during arch_skip_callchain_idx function
  perf pmu arm64: Fix reading the PMU cpu slots in sysfs

Pull cxl fixes from Vishal Verma:

 - Fixup the Sanitixe device ABI that was merged for v6.5 to hide some
   sysfs files when the necessary support is missing. Update the ABI
   documentation around this as well.

* tag 'cxl-fixes-6.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
  cxl/memdev: Only show sanitize sysfs files when supported
  cxl/memdev: Document security state in kern-doc
  cxl/memdev: Improve sanitize ABI descriptions

Pull networking fixes from Jakub Kicinski:
 "Including fixes from bpf and wireless.

  Nothing scary here. Feels like the first wave of regressions from v6.5
  is addressed - one outstanding fix still to come in TLS for the
  sendpage rework.

  Current release - regressions:

   - udp: fix __ip_append_data()'s handling of MSG_SPLICE_PAGES

   - dsa: fix older DSA drivers using phylink

  Previous releases - regressions:

   - gro: fix misuse of CB in udp socket lookup

   - mlx5: unregister devlink params in case interface is down

   - Revert "wifi: ath11k: Enable threaded NAPI"

  Previous releases - always broken:

   - sched: cls_u32: fix match key mis-addressing

   - sched: bind logic fixes for cls_fw, cls_u32 and cls_route

   - add bound checks to a number of places which hand-parse netlink

   - bpf: disable preemption in perf_event_output helpers code

   - qed: fix scheduling in a tasklet while getting stats

   - avoid using APIs which are not hardirq-safe in couple of drivers,
     when we may be in a hard IRQ (netconsole)

   - wifi: cfg80211: fix return value in scan logic, avoid page
     allocator warning

   - wifi: mt76: mt7615: do not advertise 5 GHz on first PHY of MT7615D
     (DBDC)

  Misc:

   - drop handful of inactive maintainers, put some new in place"

* tag 'net-6.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (98 commits)
  MAINTAINERS: update TUN/TAP maintainers
  test/vsock: remove vsock_perf executable on `make clean`
  tcp_metrics: fix data-race in tcpm_suck_dst() vs fastopen
  tcp_metrics: annotate data-races around tm->tcpm_net
  tcp_metrics: annotate data-races around tm->tcpm_vals[]
  tcp_metrics: annotate data-races around tm->tcpm_lock
  tcp_metrics: annotate data-races around tm->tcpm_stamp
  tcp_metrics: fix addr_same() helper
  prestera: fix fallback to previous version on same major version
  udp: Fix __ip_append_data()'s handling of MSG_SPLICE_PAGES
  net/mlx5e: Set proper IPsec source port in L4 selector
  net/mlx5: fs_core: Skip the FTs in the same FS_TYPE_PRIO_CHAINS fs_prio
  net/mlx5: fs_core: Make find_closest_ft more generic
  wifi: brcmfmac: Fix field-spanning write in brcmf_scan_params_v2_to_v1()
  vxlan: Fix nexthop hash size
  ip6mr: Fix skb_under_panic in ip6mr_cache_report()
  s390/qeth: Don't call dev_close/dev_open (DOWN/UP)
  net: tap_open(): set sk_uid from current_fsuid()
  net: tun_chr_open(): set sk_uid from current_fsuid()
  net: dcb: choose correct policy to parse DCB_ATTR_BCN
  ...

Willem and Jason have agreed to take over the maintainer
duties for TUN/TAP, thank you!

There's an existing entry for TUN/TAP which only covers
the user mode Linux implementation.
Since we haven't heard from Maxim on the list for almost
a decade, extend that entry and take it over, rather than
adding a new one.
Acked-by: Willem de Bruijn <willemb@google.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20230802182843.4193099-1-kuba@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>

Martin KaFai Lau says:

====================
pull-request: bpf 2023-08-03

We've added 5 non-merge commits during the last 7 day(s) which contain
a total of 3 files changed, 37 insertions(+), 20 deletions(-).

The main changes are:

1) Disable preemption in perf_event_output helpers code,
   from Jiri Olsa

2) Add length check for SK_DIAG_BPF_STORAGE_REQ_MAP_FD parsing,
   from Lin Ma

3) Multiple warning splat fixes in cpumap from Hou Tao

* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  bpf, cpumap: Handle skb as well when clean up ptr_ring
  bpf, cpumap: Make sure kthread is running before map update returns
  bpf: Add length check for SK_DIAG_BPF_STORAGE_REQ_MAP_FD parsing
  bpf: Disable preemption in bpf_event_output
  bpf: Disable preemption in bpf_perf_event_output
====================

Link: https://lore.kernel.org/r/20230803181429.994607-1-martin.lau@linux.devSigned-off-by: Jakub Kicinski <kuba@kernel.org>

Kalle Valo says:

====================
wireless fixes for v6.5

We did some house cleaning in MAINTAINERS file so several patches
about that. Few regressions fixed and also fix some recently enabled
memcpy() warnings. Only small commits and nothing special standing
out.

* tag 'wireless-2023-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
  wifi: brcmfmac: Fix field-spanning write in brcmf_scan_params_v2_to_v1()
  wifi: ray_cs: Replace 1-element array with flexible array
  MAINTAINERS: add Jeff as ath10k, ath11k and ath12k maintainer
  MAINTAINERS: wifi: mark mlw8k as orphan
  MAINTAINERS: wifi: mark b43 as orphan
  MAINTAINERS: wifi: mark zd1211rw as orphan
  MAINTAINERS: wifi: mark wl3501 as orphan
  MAINTAINERS: wifi: mark rndis_wlan as orphan
  MAINTAINERS: wifi: mark ar5523 as orphan
  MAINTAINERS: wifi: mark cw1200 as orphan
  MAINTAINERS: wifi: atmel: mark as orphan
  MAINTAINERS: wifi: rtw88: change Ping as the maintainer
  Revert "wifi: ath6k: silence false positive -Wno-dangling-pointer warning on GCC 12"
  wifi: cfg80211: Fix return value in scan logic
  Revert "wifi: ath11k: Enable threaded NAPI"
  MAINTAINERS: Update mwifiex maintainer list
  wifi: mt76: mt7615: do not advertise 5 GHz on first phy of MT7615D (DBDC)
====================

Link: https://lore.kernel.org/r/20230803140058.57476C433C9@smtp.kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>

We forgot to add vsock_perf to the rm command in the `clean`
target, so now we have a left over after `make clean` in
tools/testing/vsock.

Fixes: 8abbffd2 ("test/vsock: vsock_perf utility")
Cc: AVKrasnov@sberdevices.ru
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Simon Horman <horms@kernel.org> # build-tested
Link: https://lore.kernel.org/r/20230803085454.30897-1-sgarzare@redhat.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

Eric Dumazet says:

====================
tcp_metrics: series of fixes

This series contains a fix for addr_same() and various
data-race annotations.

We still have to address races over tm->tcpm_saddr and
tm->tcpm_daddr later.
====================

Link: https://lore.kernel.org/r/20230802131500.1478140-1-edumazet@google.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

Whenever tcpm_new() reclaims an old entry, tcpm_suck_dst()
would overwrite data that could be read from tcp_fastopen_cache_get()
or tcp_metrics_fill_info().

We need to acquire fastopen_seqlock to maintain consistency.

For newly allocated objects, tcpm_new() can switch to kzalloc()
to avoid an extra fastopen_seqlock acquisition.

Fixes: 1fe4c481 ("net-tcp: Fast Open client - cookie cache")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://lore.kernel.org/r/20230802131500.1478140-7-edumazet@google.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

tm->tcpm_net can be read or written locklessly.

Instead of changing write_pnet() and read_pnet() and potentially
hurt performance, add the needed READ_ONCE()/WRITE_ONCE()
in tm_net() and tcpm_new().

Fixes: 849e8a0c ("tcp_metrics: Add a field tcpm_net and verify it matches on lookup")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://lore.kernel.org/r/20230802131500.1478140-6-edumazet@google.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

tm->tcpm_vals[] values can be read or written locklessly.

Add needed READ_ONCE()/WRITE_ONCE() to document this,
and force use of tcp_metric_get() and tcp_metric_set()

Fixes: 51c5d0c4 ("tcp: Maintain dynamic metrics in local cache.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

tm->tcpm_lock can be read or written locklessly.

Add needed READ_ONCE()/WRITE_ONCE() to document this.

Fixes: 51c5d0c4 ("tcp: Maintain dynamic metrics in local cache.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://lore.kernel.org/r/20230802131500.1478140-4-edumazet@google.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

tm->tcpm_stamp can be read or written locklessly.

Add needed READ_ONCE()/WRITE_ONCE() to document this.

Also constify tcpm_check_stamp() dst argument.

Fixes: 51c5d0c4 ("tcp: Maintain dynamic metrics in local cache.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://lore.kernel.org/r/20230802131500.1478140-3-edumazet@google.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

Because v4 and v6 families use separate inetpeer trees (respectively
net->ipv4.peers and net->ipv6.peers), inetpeer_addr_cmp(a, b) assumes
a & b share the same family.

tcp_metrics use a common hash table, where entries can have different
families.

We must therefore make sure to not call inetpeer_addr_cmp()
if the families do not match.

Fixes: d39d14ff ("net: Add helper function to compare inetpeer addresses")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://lore.kernel.org/r/20230802131500.1478140-2-edumazet@google.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

When both supported and previous version have the same major version,
and the firmwares are missing, the driver ends in a loop requesting the
same (previous) version over and over again:

    [   76.327413] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.1.img firmware, fall-back to previous 4.0 version
    [   76.339802] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.0.img firmware, fall-back to previous 4.0 version
    [   76.352162] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.0.img firmware, fall-back to previous 4.0 version
    [   76.364502] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.0.img firmware, fall-back to previous 4.0 version
    [   76.376848] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.0.img firmware, fall-back to previous 4.0 version
    [   76.389183] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.0.img firmware, fall-back to previous 4.0 version
    [   76.401522] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.0.img firmware, fall-back to previous 4.0 version
    [   76.413860] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.0.img firmware, fall-back to previous 4.0 version
    [   76.426199] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.0.img firmware, fall-back to previous 4.0 version
    ...

Fix this by inverting the check to that we aren't yet at the previous
version, and also check the minor version.

This also catches the case where both versions are the same, as it was
after commit bb5dbf2c ("net: marvell: prestera: add firmware v4.0
support").

With this fix applied:

    [   88.499622] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.1.img firmware, fall-back to previous 4.0 version
    [   88.511995] Prestera DX 0000:01:00.0: failed to request previous firmware: mrvl/prestera/mvsw_prestera_fw-v4.0.img
    [   88.522403] Prestera DX: probe of 0000:01:00.0 failed with error -2

Fixes: 47f26018 ("net: marvell: prestera: try to load previous fw version")
Signed-off-by: Jonas Gorski <jonas.gorski@bisdn.de>
Acked-by: Elad Nachman <enachman@marvell.com>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Acked-by: Taras Chornyi <taras.chornyi@plvision.eu>
Link: https://lore.kernel.org/r/20230802092357.163944-1-jonas.gorski@bisdn.deSigned-off-by: Jakub Kicinski <kuba@kernel.org>

Pull nfsd fix from Chuck Lever:

 - Fix tmpfs splice read support

* tag 'nfsd-6.5-3' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
  nfsd: Fix reading via splice

Pull erofs fixes from Gao Xiang:

 - Fix data corruption caused by insufficient decompression on
   deduplicated compressed extents

 - Drop a useless s_magic checking in erofs_kill_sb()

* tag 'erofs-for-6.5-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
  erofs: drop unnecessary WARN_ON() in erofs_kill_sb()
  erofs: fix wrong primary bvec selection on deduplicated extents

Pull s390 fixes from Heiko Carstens:

 - Split kernel large page mappings into 4k mappings in case debug
   pagealloc is enabled again. This got accidentally removed by commit
   bb1520d5 ("s390/mm: start kernel with DAT enabled")

 - Fix error handling in KVM's sthyi handling

 - Add missing include to s390's uapi ptrace.h

 - Update defconfigs

* tag 's390-6.5-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/ptrace: add missing linux/const.h include
  KVM: s390: fix sthyi error handling
  s390: update defconfigs
  s390/vmem: split pages when debug pagealloc is enabled

When setting ZT0 via ptrace we do not currently force a reload of the
floating point register state from memory, do that to ensure that the newly
set value gets loaded into the registers on next task execution.

The function was templated off the function for FPSIMD which due to our
providing the option of embedding a FPSIMD regset within the SVE regset
does not directly include the flush.

Fixes: f90b529b ("arm64/sme: Implement ZT0 ptrace support")
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230803-arm64-fix-ptrace-zt0-flush-v1-1-72e854eaf96e@kernel.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

When setting SME vector lengths we clear TIF_SME to reenable SME traps,
doing a reallocation of the backing storage on next use. We do this using
clear_thread_flag() which operates on the current thread, meaning that when
setting the vector length via ptrace we may both not force traps for the
target task and force a spurious flush of any SME state that the tracing
task may have.

Clear the flag in the target task.

Fixes: e12310a0 ("arm64/sme: Implement ptrace support for streaming mode SVE registers")
Reported-by: David Spickett <David.Spickett@arm.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230803-arm64-fix-ptrace-tif-sme-v1-1-88312fd6fbfd@kernel.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

Fix checkpatch warnings:
unaligned.c:475: ERROR: space required after that ','
Signed-off-by: Yu Han <hanyu001@208suo.com>
Signed-off-by: Helge Deller <deller@gmx.de>