Merge branch 'next' into for-linus

Prepare input updates for 6.6 merge window.

Merge tag 'v6.4' into next

Sync up with mainline to bring in updates to shared infrastructure.

Merge branch 'for-6.5/apple' into for-linus

- improved support for Keychron K8 keyboard (Lasse Brun)

Merge drm/drm-next into drm-misc-next-fixes

Backmerging to sync drm-misc-next-fixes with drm-misc-next.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

Merge branch 'drm-next' of git://anongit.freedesktop.org/drm/drm into msm-next-lumag-base

Merge the drm-next tree to pick up the DRM DSC helpers (merged via
drm-intel-next tree). MSM DSC v1.2 patche

Merge branch 'drm-next' of git://anongit.freedesktop.org/drm/drm into msm-next-lumag-base

Merge the drm-next tree to pick up the DRM DSC helpers (merged via
drm-intel-next tree). MSM DSC v1.2 patches depend on these helpers.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

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Merge tag 'v6.4-rc4' into wpan-next/staging

Linux 6.4-rc4

Merge drm/drm-next into drm-intel-gt-next

For conflict avoidance we need the following commit:

c9a9f18d3ad8 drm/i915/huc: use const struct bus_type pointers

Signed-off-by: Tvrtko Ursulin <tvrtko

Merge drm/drm-next into drm-intel-gt-next

For conflict avoidance we need the following commit:

c9a9f18d3ad8 drm/i915/huc: use const struct bus_type pointers

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

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Merge drm/drm-next into drm-intel-next

Backmerge to get some hwmon dependencies.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

Merge drm/drm-fixes into drm-misc-fixes

Let's bring 6.4-rc1 in drm-misc-fixes to start the new fix cycle.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>

Merge drm/drm-next into drm-misc-next

Start the 6.5 release cycle.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>

Merge tag 'loongarch-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson

Pull LoongArch updates from Huacai Chen:

- Better backtraces for humanization

- Relay BCE exc

Merge tag 'loongarch-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson

Pull LoongArch updates from Huacai Chen:

- Better backtraces for humanization

- Relay BCE exceptions to userland as SIGSEGV

- Provide kernel fpu functions

- Optimize memory ops (memset/memcpy/memmove)

- Optimize checksum and crc32(c) calculation

- Add ARCH_HAS_FORTIFY_SOURCE selection

- Add function error injection support

- Add ftrace with direct call support

- Add basic perf tools support

* tag 'loongarch-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson: (24 commits)
tools/perf: Add basic support for LoongArch
LoongArch: ftrace: Add direct call trampoline samples support
LoongArch: ftrace: Add direct call support
LoongArch: ftrace: Implement ftrace_find_callable_addr() to simplify code
LoongArch: ftrace: Fix build error if DYNAMIC_FTRACE_WITH_REGS is not set
LoongArch: ftrace: Abstract DYNAMIC_FTRACE_WITH_ARGS accesses
LoongArch: Add support for function error injection
LoongArch: Add ARCH_HAS_FORTIFY_SOURCE selection
LoongArch: crypto: Add crc32 and crc32c hw acceleration
LoongArch: Add checksum optimization for 64-bit system
LoongArch: Optimize memory ops (memset/memcpy/memmove)
LoongArch: Provide kernel fpu functions
LoongArch: Relay BCE exceptions to userland as SIGSEGV with si_code=SEGV_BNDERR
LoongArch: Tweak the BADV and CPUCFG.PRID lines in show_regs()
LoongArch: Humanize the ESTAT line when showing registers
LoongArch: Humanize the ECFG line when showing registers
LoongArch: Humanize the EUEN line when showing registers
LoongArch: Humanize the PRMD line when showing registers
LoongArch: Humanize the CRMD line when showing registers
LoongArch: Fix format of CSR lines during show_regs()
...

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LoongArch: Add support for function error injection

Inspired by the commit 42d038c4fb00f ("arm64: Add support for function
error injection") and the commit ee55ff803b383 ("riscv: Add support for
fun

LoongArch: Add support for function error injection

Inspired by the commit 42d038c4fb00f ("arm64: Add support for function
error injection") and the commit ee55ff803b383 ("riscv: Add support for
function error injection"), this patch supports function error injection
for LoongArch.

Mainly implement two functions:
(1) regs_set_return_value() which is used to overwrite the return value,
(2) override_function_with_return() which is used to override the probed
function returning and jump to its caller.

Here is a simple test under CONFIG_FUNCTION_ERROR_INJECTION and
CONFIG_FAIL_FUNCTION:

# echo sys_clone > /sys/kernel/debug/fail_function/inject
# echo 100 > /sys/kernel/debug/fail_function/probability
# dmesg
bash: fork: Invalid argument
# dmesg
...
FAULT_INJECTION: forcing a failure.
name fail_function, interval 1, probability 100, space 0, times 1
...
Call Trace:
[<90000000002238f4>] show_stack+0x5c/0x180
[<90000000012e384c>] dump_stack_lvl+0x60/0x88
[<9000000000b1879c>] should_fail_ex+0x1b0/0x1f4
[<900000000032ead4>] fei_kprobe_handler+0x28/0x6c
[<9000000000230970>] kprobe_breakpoint_handler+0xf0/0x118
[<90000000012e3e60>] do_bp+0x2c4/0x358
[<9000000002241924>] exception_handlers+0x1924/0x10000
[<900000000023b7d0>] sys_clone+0x0/0x4
[<90000000012e4744>] do_syscall+0x7c/0x94
[<9000000000221e44>] handle_syscall+0xc4/0x160

Tested-by: Hengqi Chen <hengqi.chen@gmail.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

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