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[PW_SID:1147816] i2c: microchip-corei2c: disable clock after removing adapter - #2487

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[PW_SID:1147816] i2c: microchip-corei2c: disable clock after removing adapter#2487
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@linux-riscv-bot linux-riscv-bot commented Aug 18, 2026

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PR for series 1147816 applied to workflow__riscv__fixes

Name: i2c: microchip-corei2c: disable clock after removing adapter
URL: https://patchwork.kernel.org/project/linux-riscv/list/?series=1147816
Version: 1

ThreeBottleCap and others added 4 commits August 14, 2026 14:12
@ThreeBottleCap Paul Walmsley
riscv: mm: make EXECMEM_KPROBES writable without CONFIG_STRICT_MODULE…
784f45c 
…_RWX

When CONFIG_STRICT_MODULE_RWX is not set, execmem cannot create
temporary writable mappings for read-only executable pages. In this
case, the execmem ranges must already have writable permissions.

Currently EXECMEM_KPROBES unconditionally uses PAGE_KERNEL_READ_EXEC,
which causes kprobe instruction slot writes to trigger page faults
on systems where CONFIG_STRICT_MODULE_RWX is not enabled.

Fix this by using PAGE_KERNEL_EXEC when CONFIG_STRICT_MODULE_RWX
is not available.

Signed-off-by: Xiaofeng Yuan <xiaofengmian@163.com>
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Nam Cao <namcao@linutronix.de>
Link: https://patch.msgid.link/20260814082742.148403-2-xiaofengmian@163.com
Signed-off-by: Paul Walmsley <pjw@kernel.org>
@ThreeBottleCap Paul Walmsley
riscv: patch: skip fixmap mapping when kernel text is already writable
8d9d4fd 
patch_map() always creates a temporary writable mapping via fixmap for
kernel text addresses, even when CONFIG_STRICT_KERNEL_RWX is disabled
and the kernel text is already mapped with _PAGE_WRITE.

This is unnecessary overhead at best, and on minimal configurations
it can cause page faults.

Skip the fixmap path for kernel text when CONFIG_STRICT_KERNEL_RWX
is not enabled, since the text pages are already writable in that case.
The module text path is already gated on CONFIG_STRICT_MODULE_RWX and
is kept unchanged.

Reported-by: Klara Modin <klara@kasm.eu>
Closes: https://lore.kernel.org/all/ant_8TaBbov_GS4i@soda.int.kasm.eu/
Reported-by: Lad Prabhakar <prabhakar.csengg@gmail.com>
Closes: https://lore.kernel.org/all/CA+V-a8tQK8rih9SGGTyqrEBGpNkx4H0eX2YccCRrgkVAPr+EBg@mail.gmail.com/
Tested-by: Klara Modin <klarasmodin@gmail.com>
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://patch.msgid.link/20260814082742.148403-3-xiaofengmian@163.com
Signed-off-by: Paul Walmsley <pjw@kernel.org>
Linux RISC-V bot
Adding CI files
492cc66
@gawenliu Linux RISC-V bot
i2c: microchip-corei2c: disable clock after removing adapter
7d851a4 
In mchp_corei2c_remove(), the controller clock is disabled before
i2c_del_adapter() is called. This leaves the adapter teardown running
without the controller clock, which may be required for proper
operation. Reorder the calls to disable the clock after removing the
adapter, ensuring the adapter teardown runs while the clock is
available.

Signed-off-by: jiawen <1298662399@qq.com>
Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>
@linux-riscv-bot

linux-riscv-bot commented Aug 18, 2026

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Patch 1: "i2c: microchip-corei2c: disable clock after removing adapter"
build-rv32-defconfig
Desc: Builds riscv32 defconfig
Duration: 143.79 seconds
Result: PASS

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linux-riscv-bot commented Aug 18, 2026

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Patch 1: "i2c: microchip-corei2c: disable clock after removing adapter"
build-rv64-clang-allmodconfig
Desc: Builds riscv64 allmodconfig with Clang, and checks for errors and added warnings
Duration: 1130.04 seconds
Result: PASS

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linux-riscv-bot commented Aug 18, 2026

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Patch 1: "i2c: microchip-corei2c: disable clock after removing adapter"
build-rv64-gcc-allmodconfig
Desc: Builds riscv64 allmodconfig with GCC, and checks for errors and added warnings
Duration: 1452.80 seconds
Result: PASS

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linux-riscv-bot commented Aug 18, 2026

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Patch 1: "i2c: microchip-corei2c: disable clock after removing adapter"
build-rv64-nommu-k210-defconfig
Desc: Builds riscv64 defconfig with NOMMU for K210
Duration: 27.04 seconds
Result: PASS

@linux-riscv-bot

linux-riscv-bot commented Aug 18, 2026

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Patch 1: "i2c: microchip-corei2c: disable clock after removing adapter"
build-rv64-nommu-k210-virt
Desc: Builds riscv64 defconfig with NOMMU for the virt platform
Duration: 37.41 seconds
Result: PASS

@linux-riscv-bot

linux-riscv-bot commented Aug 18, 2026

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Patch 1: "i2c: microchip-corei2c: disable clock after removing adapter"
checkpatch
Desc: Runs checkpatch.pl on the patch
Duration: 8.57 seconds
Result: PASS

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linux-riscv-bot commented Aug 18, 2026

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Patch 1: "i2c: microchip-corei2c: disable clock after removing adapter"
dtb-warn-rv64
Desc: Checks for Device Tree warnings/errors
Duration: 92.14 seconds
Result: PASS

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linux-riscv-bot commented Aug 18, 2026

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Patch 1: "i2c: microchip-corei2c: disable clock after removing adapter"
header-inline
Desc: Detects static functions without inline keyword in header files
Duration: 1.33 seconds
Result: PASS

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linux-riscv-bot commented Aug 18, 2026

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Patch 1: "i2c: microchip-corei2c: disable clock after removing adapter"
kdoc
Desc: Detects for kdoc errors
Duration: 1.53 seconds
Result: PASS

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linux-riscv-bot commented Aug 18, 2026

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Patch 1: "i2c: microchip-corei2c: disable clock after removing adapter"
module-param
Desc: Detect module_param changes
Duration: 0.26 seconds
Result: PASS

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linux-riscv-bot commented Aug 18, 2026

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Patch 1: "i2c: microchip-corei2c: disable clock after removing adapter"
verify-fixes
Desc: Verifies that the Fixes: tags exist
Duration: 0.35 seconds
Result: PASS

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linux-riscv-bot commented Aug 18, 2026

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Patch 1: "i2c: microchip-corei2c: disable clock after removing adapter"
verify-signedoff
Desc: Verifies that Signed-off-by: tags are correct
Duration: 1.26 seconds
Result: PASS

@linux-riscv-bot
linux-riscv-bot force-pushed the workflow__riscv__fixes branch 2 times, most recently from bb1a926 to 6f6f7c0 Compare August 21, 2026 03:35
@linux-riscv-bot
linux-riscv-bot deleted the pw1147816 branch August 26, 2026 02:27
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@linux-riscv-bot @ThreeBottleCap @gawenliu