Pull i2c fixes from Wolfram Sang:
 "Two driver bugfixes and a typo fix"

* tag 'i2c-for-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: cadence: Change large transfer count reset logic to be unconditional
  i2c: imx: fix typo in comment
  i2c: mlxcpld: Fix register setting for 400KHz frequency

Pull gpio fixes from Bartosz Golaszewski:

 - fix several regmap usage issues in gpio-pca953x

 - fix out-of-tree build for GPIO selftests

 - fix integer overflow in gpio-xilinx

* tag 'gpio-fixes-for-v5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpio: gpio-xilinx: Fix integer overflow
  selftests: gpio: fix include path to kernel headers for out of tree builds
  gpio: pca953x: use the correct register address when regcache sync during init
  gpio: pca953x: use the correct range when do regmap sync
  gpio: pca953x: only use single read/write for No AI mode

Pull pin control fixes from Linus Walleij:
 "Only driver fixes:

   - NULL check for the ralink and sunplus drivers

   - Add Jacky Bai as maintainer for the Freescale pin controllers

   - Fix pin config ops for the Ocelot LAN966x and SparX5

   - Disallow AMD pin control to be a module: the GPIO lines need to be
     active in early boot, so no can do

   - Fix the Armada 37xx to use raw spinlocks in the interrupt handler
     path to avoid wait context"

* tag 'pinctrl-v5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: armada-37xx: use raw spinlocks for regmap to avoid invalid wait context
  pinctrl: armada-37xx: make irq_lock a raw spinlock to avoid invalid wait context
  pinctrl: Don't allow PINCTRL_AMD to be a module
  pinctrl: ocelot: Fix pincfg
  pinctrl: ocelot: Fix pincfg for lan966x
  MAINTAINERS: Update freescale pin controllers maintainer
  pinctrl: sunplus: Add check for kcalloc
  pinctrl: ralink: Check for null return of devm_kcalloc

Pull sound fixes from Takashi Iwai:
 "Only undoes the Rockchip BCLK changes to address a regression"

* tag 'sound-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ASoC: rockchip-i2s: Undo BCLK pinctrl changes
  ASoC: rockchip: i2s: Fix NULL pointer dereference when pinctrl is not found

Pull MMC fix from Ulf Hansson:

 - sdhci-omap: Fix a lockdep warning while probing

* tag 'mmc-v5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: sdhci-omap: Fix a lockdep warning for PM runtime init

Pull drm fixes from Dave Airlie:
 "Fixes for this week.

  The main one is the i915 firmware fix for the phoronix reported issue.
  I've written some firmware guidelines as a result, should land in
  -next soon. Otherwise a few amdgpu fixes, a scheduler fix, ttm fix and
  two other minor ones.

  scheduler:
   - scheduling while atomic fix

  ttm:
   - locking fix

  edp:
   - variable typo fix

  i915:
   - add back support for v69 firmware on ADL-P

  amdgpu:
   - Drop redundant buffer cleanup that can lead to a segfault
   - Add a bo_list mutex to avoid possible list corruption in CS
   - dmub notification fix

  imx:
   - fix error path"

* tag 'drm-fixes-2022-07-22' of git://anongit.freedesktop.org/drm/drm:
  drm/amdgpu: Protect the amdgpu_bo_list list with a mutex v2
  drm/imx/dcss: Add missing of_node_put() in fail path
  drm/i915/guc: support v69 in parallel to v70
  drm/i915/guc: Support programming the EU priority in the GuC descriptor
  drm/panel-edp: Fix variable typo when saving hpd absent delay from DT
  drm/amdgpu: Remove one duplicated ef removal
  drm/ttm: fix locking in vmap/vunmap TTM GEM helpers
  drm/scheduler: Don't kill jobs in interrupt context
  drm/amd/display: Fix new dmub notification enabling in DM

Merge tag 'rcu-urgent.2022.07.21a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

Pull RCU fix from Paul McKenney:
 "This contains a pair of commits that fix 282d8998 ("srcu: Prevent
  expedited GPs and blocking readers from consuming CPU"), which was
  itself a fix to an SRCU expedited grace-period problem that could
  prevent kernel live patching (KLP) from completing.

  That SRCU fix for KLP introduced large (as in minutes) boot-time
  delays to embedded Linux kernels running on qemu/KVM. These delays
  were due to the emulation of certain MMIO operations controlling
  memory layout, which were emulated with one expedited grace period per
  access. Common configurations required thousands of boot-time MMIO
  accesses, and thus thousands of boot-time expedited SRCU grace
  periods.

  In these configurations, the occasional sleeps that allowed KLP to
  proceed caused excessive boot delays. These commits preserve enough
  sleeps to permit KLP to proceed, but few enough that the virtual
  embedded kernels still boot reasonably quickly.

  This represents a regression introduced in the v5.19 merge window, and
  the bug is causing significant inconvenience"

* tag 'rcu-urgent.2022.07.21a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  srcu: Make expedited RCU grace periods block even less frequently
  srcu: Block less aggressively for expedited grace periods

Sudip reports that alpha doesn't build properly, with errors like

  include/asm-generic/tlb.h:401:1: error: redefinition of 'tlb_update_vma_flags'
    401 | tlb_update_vma_flags(struct mmu_gather *tlb, struct vm_area_struct *vma)
        | ^~~~~~~~~~~~~~~~~~~~
  include/asm-generic/tlb.h:372:1: note: previous definition of 'tlb_update_vma_flags' with type 'void(struct mmu_gather *, struct vm_area_struct *)'
    372 | tlb_update_vma_flags(struct mmu_gather *tlb, struct vm_area_struct *vma) { }

the cause being that We have this odd situation where some architectures
were never converted to the newer TLB flushing interfaces that have a
range for the flush.  Instead people left them alone, and we have them
select the MMU_GATHER_NO_RANGE config option to make the tlb header
files account for this.

Peter Zijlstra cleaned some of these nasty header file games up in
commits

  1e9fdf21 ("mmu_gather: Remove per arch tlb_{start,end}_vma()")
  18ba064e ("mmu_gather: Let there be one tlb_{start,end}_vma() implementation")

but tlb_update_vma_flags() was left alone, and then commit b67fbebd
("mmu_gather: Force tlb-flush VM_PFNMAP vmas") ended up removing only
_one_ of the two stale duplicate dummy inline functions.

This removes the other stale one.

Somebody braver than me should try to remove MMU_GATHER_NO_RANGE
entirely, but it requires fixing up the oddball architectures that use
it: alpha, m68k, microblaze, nios2 and openrisc.

The fixups should be fairly straightforward ("fix the build errors it
exposes by adding the appropriate range arguments"), but the reason this
wasn't done in the first place is that so few people end up working on
those architectures.  But it could be done one architecture at a time,
hint, hint.
Reported-by: NSudip Mukherjee (Codethink) <sudipm.mukherjee@gmail.com>
Fixes: b67fbebd ("mmu_gather: Force tlb-flush VM_PFNMAP vmas")
Link: https://lore.kernel.org/all/YtpXh0QHWwaEWVAY@debian/
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Nick Piggin <npiggin@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Current implementation is not able to configure more than 32 pins
due to incorrect data type. So type casting with unsigned long
to avoid it.

Fixes: 02b3f84d ("xilinx: Switch to use bitmap APIs")
Signed-off-by: NSrinivas Neeli <srinivas.neeli@xilinx.com>
Signed-off-by: NBartosz Golaszewski <brgl@bgdev.pl>

A scheduling-while-atomic fix for drm/scheduler, a locking fix for TTM,
a typo fix for panel-edp and a resource removal fix for imx/dcss
Signed-off-by: NDave Airlie <airlied@redhat.com>

From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220721085550.hrwbukj34y56rzva@houat

Pull MTD fix from Richard Weinberger:
 "A aingle NAND controller fix:

   - gpmi: Fix busy timeout setting (wrong calculation, yes again)"

* tag 'mtd/fixes-for-5.19-final' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
  mtd: rawnand: gpmi: Set WAIT_FOR_READY timeout based on program/erase times

Pull networking fixes from Paolo Abeni:
 "Including fixes from can.

  Still no major regressions, most of the changes are still due to data
  races fixes, plus the usual bunch of drivers fixes.

  Previous releases - regressions:

   - tcp/udp: make early_demux back namespacified.

   - dsa: fix issues with vlan_filtering_is_global

  Previous releases - always broken:

   - ip: fix data-races around ipv4_net_table (round 2, 3 & 4)

   - amt: fix validation and synchronization bugs

   - can: fix detection of mcp251863

   - eth: iavf: fix handling of dummy receive descriptors

   - eth: lan966x: fix issues with MAC table

   - eth: stmmac: dwmac-mediatek: fix clock issue

  Misc:

   - dsa: update documentation"

* tag 'net-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (107 commits)
  mlxsw: spectrum_router: Fix IPv4 nexthop gateway indication
  net/sched: cls_api: Fix flow action initialization
  tcp: Fix data-races around sysctl_tcp_max_reordering.
  tcp: Fix a data-race around sysctl_tcp_abort_on_overflow.
  tcp: Fix a data-race around sysctl_tcp_rfc1337.
  tcp: Fix a data-race around sysctl_tcp_stdurg.
  tcp: Fix a data-race around sysctl_tcp_retrans_collapse.
  tcp: Fix data-races around sysctl_tcp_slow_start_after_idle.
  tcp: Fix a data-race around sysctl_tcp_thin_linear_timeouts.
  tcp: Fix data-races around sysctl_tcp_recovery.
  tcp: Fix a data-race around sysctl_tcp_early_retrans.
  tcp: Fix data-races around sysctl knobs related to SYN option.
  udp: Fix a data-race around sysctl_udp_l3mdev_accept.
  ip: Fix data-races around sysctl_ip_prot_sock.
  ipv4: Fix data-races around sysctl_fib_multipath_hash_fields.
  ipv4: Fix data-races around sysctl_fib_multipath_hash_policy.
  ipv4: Fix a data-race around sysctl_fib_multipath_use_neigh.
  can: rcar_canfd: Add missing of_node_put() in rcar_canfd_probe()
  can: mcp251xfd: fix detection of mcp251863
  Documentation: fix udp_wmem_min in ip-sysctl.rst
  ...

Jann reported a race between munmap() and unmap_mapping_range(), where
unmap_mapping_range() will no-op once unmap_vmas() has unlinked the
VMA; however munmap() will not yet have invalidated the TLBs.

Therefore unmap_mapping_range() will complete while there are still
(stale) TLB entries for the specified range.

Mitigate this by force flushing TLBs for VM_PFNMAP ranges.
Signed-off-by: NPeter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: NWill Deacon <will@kernel.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Now that architectures are no longer allowed to override
tlb_{start,end}_vma() re-arrange code so that there is only one
implementation for each of these functions.

This much simplifies trying to figure out what they actually do.
Signed-off-by: NPeter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: NWill Deacon <will@kernel.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The previous patch removed the tlb_flush_end() implementation which
used tlb_flush_range(). This means:

 - csky did double invalidates, a range invalidate per vma and a full
   invalidate at the end

 - csky actually has range invalidates and as such the generic
   tlb_flush implementation is more efficient for it.
Signed-off-by: NPeter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: NWill Deacon <will@kernel.org>
Tested-by: NGuo Ren <guoren@kernel.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Scattered across the archs are 3 basic forms of tlb_{start,end}_vma().
Provide two new MMU_GATHER_knobs to enumerate them and remove the per
arch tlb_{start,end}_vma() implementations.

 - MMU_GATHER_NO_FLUSH_CACHE indicates the arch has flush_cache_range()
   but does *NOT* want to call it for each VMA.

 - MMU_GATHER_MERGE_VMAS indicates the arch wants to merge the
   invalidate across multiple VMAs if possible.

With these it is possible to capture the three forms:

  1) empty stubs;
     select MMU_GATHER_NO_FLUSH_CACHE and MMU_GATHER_MERGE_VMAS

  2) start: flush_cache_range(), end: empty;
     select MMU_GATHER_MERGE_VMAS

  3) start: flush_cache_range(), end: flush_tlb_range();
     default

Obviously, if the architecture does not have flush_cache_range() then
it also doesn't need to select MMU_GATHER_NO_FLUSH_CACHE.
Signed-off-by: NPeter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: NWill Deacon <will@kernel.org>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Currently the command 'lx-symbols' in gdb exits with the error`Function
"do_init_module" not defined in "kernel/module.c"`. This occurs because
the file kernel/module.c was moved to kernel/module/main.c.

Fix this breakage by changing the path to "kernel/module/main.c" in
LoadModuleBreakpoint.
Signed-off-by: NKhalid Masum <khalid.masum.92@gmail.com>
Acked-by: NLuis Chamberlain <mcgrof@kernel.org>
Fixes: cfc1d277 ("module: Move all into module/")
Reviewed-by: NDouglas Anderson <dianders@chromium.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Sedat Dilek noticed that I had an extraneous semicolon at the end of a
line in the previous patch.

It's harmless, but unintentional, and while compilers just treat it as
an extra empty statement, for all I know some other tooling might warn
about it. So clean it up before other people notice too ;)

Fixes: 353f7988 ("watchqueue: make sure to serialize 'wqueue->defunct' properly")
Reported-by: NSedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
Reported-by: NSedat Dilek <sedat.dilek@gmail.com>

Merge tag 'amd-drm-fixes-5.19-2022-07-20' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-5.19-2022-07-20:

amdgpu:
- Drop redundant buffer cleanup that can lead to a segfault
- Add a bo_list mutex to avoid possible list corruption in CS
Signed-off-by: NDave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220720210917.6202-1-alexander.deucher@amd.com

Merge tag 'drm-intel-fixes-2022-07-20-1' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- Fix the regression caused by the lack of GuC v70.
  Let's accept the fallback to v69.
Signed-off-by: NDave Airlie <airlied@redhat.com>

From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/YtgguaR5JYK083oZ@intel.com

Protect the struct amdgpu_bo_list with a mutex. This is used during command
submission in order to avoid buffer object corruption as recorded in
the link below.

v2 (chk): Keep the mutex looked for the whole CS to avoid using the
	  list from multiple CS threads at the same time.
Suggested-by: NChristian König <christian.koenig@amd.com>
Cc: Alex Deucher <Alexander.Deucher@amd.com>
Cc: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Cc: Vitaly Prosyak <Vitaly.Prosyak@amd.com>
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2048Signed-off-by: NLuben Tuikov <luben.tuikov@amd.com>
Signed-off-by: NChristian König <christian.koenig@amd.com>
Tested-by: NLuben Tuikov <luben.tuikov@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

When the pipe is closed, we mark the associated watchqueue defunct by
calling watch_queue_clear().  However, while that is protected by the
watchqueue lock, new watchqueue entries aren't actually added under that
lock at all: they use the pipe->rd_wait.lock instead, and looking up
that pipe happens without any locking.

The watchqueue code uses the RCU read-side section to make sure that the
wqueue entry itself hasn't disappeared, but that does not protect the
pipe_info in any way.

So make sure to actually hold the wqueue lock when posting watch events,
properly serializing against the pipe being torn down.
Reported-by: NNoam Rathaus <noamr@ssd-disclosure.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The lockdown LSM is primarily used in conjunction with UEFI Secure Boot.
This LSM may also be used on machines without UEFI.  It can also be
enabled when UEFI Secure Boot is disabled.  One of lockdown's features
is to prevent kexec from loading untrusted kernels.  Lockdown can be
enabled through a bootparam or after the kernel has booted through
securityfs.

If IMA appraisal is used with the "ima_appraise=log" boot param,
lockdown can be defeated with kexec on any machine when Secure Boot is
disabled or unavailable.  IMA prevents setting "ima_appraise=log" from
the boot param when Secure Boot is enabled, but this does not cover
cases where lockdown is used without Secure Boot.

To defeat lockdown, boot without Secure Boot and add ima_appraise=log to
the kernel command line; then:

  $ echo "integrity" > /sys/kernel/security/lockdown
  $ echo "appraise func=KEXEC_KERNEL_CHECK appraise_type=imasig" > \
    /sys/kernel/security/ima/policy
  $ kexec -ls unsigned-kernel

Add a call to verify ima appraisal is set to "enforce" whenever lockdown
is enabled.  This fixes CVE-2022-21505.

Cc: stable@vger.kernel.org
Fixes: 29d3c1c8 ("kexec: Allow kexec_file() with appropriate IMA policy when locked down")
Signed-off-by: NEric Snowberg <eric.snowberg@oracle.com>
Acked-by: NMimi Zohar <zohar@linux.ibm.com>
Reviewed-by: NJohn Haxby <john.haxby@oracle.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

When building selftests out of the kernel tree the gpio.h the include
path is incorrect and the build falls back to the system includes
which may be outdated.

Add the KHDR_INCLUDES to the CFLAGS to include the gpio.h from the
build tree.

Fixes: 4f4d0af7 ("selftests: gpio: restore CFLAGS options")
Reported-by: Nkernel test robot <lkp@intel.com>
Signed-off-by: NKent Gibson <warthog618@gmail.com>
Signed-off-by: NBartosz Golaszewski <brgl@bgdev.pl>

Merge tag 'linux-can-fixes-for-5.19-20220720' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can

Marc Kleine-Budde says:

====================
this is a pull request of 2 patches for net/master.

The first patch is by me and fixes the detection of the mcp251863 in
the mcp251xfd driver.

The last patch is by Liang He and adds a missing of_node_put() in the
rcar_canfd driver.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

mlxsw needs to distinguish nexthops with a gateway from connected
nexthops in order to write the former to the adjacency table of the
device. The check used to rely on the fact that nexthops with a gateway
have a 'link' scope whereas connected nexthops have a 'host' scope. This
is no longer correct after commit 747c1430 ("ip: fix dflt addr
selection for connected nexthop").

Fix that by instead checking the address family of the gateway IP. This
is a more direct way and also consistent with the IPv6 counterpart in
mlxsw_sp_rt6_is_gateway().

Cc: stable@vger.kernel.org
Fixes: 747c1430 ("ip: fix dflt addr selection for connected nexthop")
Fixes: 597cfe4f ("nexthop: Add support for IPv4 nexthops")
Signed-off-by: NIdo Schimmel <idosch@nvidia.com>
Reviewed-by: NAmit Cohen <amcohen@nvidia.com>
Reviewed-by: NNicolas Dichtel <nicolas.dichtel@6wind.com>
Reviewed-by: NDavid Ahern <dsahern@kernel.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The cited commit refactored the flow action initialization sequence to
use an interface method when translating tc action instances to flow
offload objects. The refactored version skips the initialization of the
generic flow action attributes for tc actions, such as pedit, that allocate
more than one offload entry. This can cause potential issues for drivers
mapping flow action ids.

Populate the generic flow action fields for all the flow action entries.

Fixes: c54e1d92 ("flow_offload: add ops to tc_action_ops for flow action setup")
Signed-off-by: NOz Shlomo <ozsh@nvidia.com>
Reviewed-by: NRoi Dayan <roid@nvidia.com>

----
v1 -> v2:
 - coalese the generic flow action fields initialization to a single loop
Reviewed-by: NBaowen Zheng <baowen.zheng@corigine.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Kuniyuki Iwashima says:

====================
sysctl: Fix data-races around ipv4_net_table (Round 4).

This series fixes data-races around 17 knobs after fib_multipath_use_neigh
in ipv4_net_table.

tcp_fack was skipped because it's obsolete and there's no readers.

So, round 5 will start with tcp_dsack, 2 rounds left for 27 knobs.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

While reading sysctl_tcp_max_reordering, it can be changed
concurrently.  Thus, we need to add READ_ONCE() to its readers.

Fixes: dca145ff ("tcp: allow for bigger reordering level")
Signed-off-by: NKuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

While reading sysctl_tcp_abort_on_overflow, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its reader.

Fixes: 1da177e4 ("Linux-2.6.12-rc2")
Signed-off-by: NKuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

While reading sysctl_tcp_rfc1337, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its reader.

Fixes: 1da177e4 ("Linux-2.6.12-rc2")
Signed-off-by: NKuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

While reading sysctl_tcp_stdurg, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its reader.

Fixes: 1da177e4 ("Linux-2.6.12-rc2")
Signed-off-by: NKuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

While reading sysctl_tcp_retrans_collapse, it can be changed
concurrently.  Thus, we need to add READ_ONCE() to its reader.

Fixes: 1da177e4 ("Linux-2.6.12-rc2")
Signed-off-by: NKuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

While reading sysctl_tcp_slow_start_after_idle, it can be changed
concurrently.  Thus, we need to add READ_ONCE() to its readers.

Fixes: 35089bb2 ("[TCP]: Add tcp_slow_start_after_idle sysctl.")
Signed-off-by: NKuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

While reading sysctl_tcp_thin_linear_timeouts, it can be changed
concurrently.  Thus, we need to add READ_ONCE() to its reader.

Fixes: 36e31b0a ("net: TCP thin linear timeouts")
Signed-off-by: NKuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

While reading sysctl_tcp_recovery, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its readers.

Fixes: 4f41b1c5 ("tcp: use RACK to detect losses")
Signed-off-by: NKuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

While reading sysctl_tcp_early_retrans, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its reader.

Fixes: eed530b6 ("tcp: early retransmit")
Signed-off-by: NKuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

While reading these knobs, they can be changed concurrently.
Thus, we need to add READ_ONCE() to their readers.

  - tcp_sack
  - tcp_window_scaling
  - tcp_timestamps

Fixes: 1da177e4 ("Linux-2.6.12-rc2")
Signed-off-by: NKuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

While reading sysctl_udp_l3mdev_accept, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its reader.

Fixes: 63a6fff3 ("net: Avoid receiving packets with an l3mdev on unbound UDP sockets")
Signed-off-by: NKuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

sysctl_ip_prot_sock is accessed concurrently, and there is always a chance
of data-race.  So, all readers and writers need some basic protection to
avoid load/store-tearing.

Fixes: 4548b683 ("Introduce a sysctl that modifies the value of PROT_SOCK.")
Signed-off-by: NKuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>