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drm/amd/pm: Annotate struct smu10_voltage_dependency_table with __counted_by

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Prepare for the coming implementation by GCC and Clang of the __counted_by
attribute. Flexible array members annotated with __counted_by can have
their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS
(for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family
functions).

As found with Coccinelle[1], add __counted_by for struct smu10_voltage_dependency_table.

[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci

Cc: Evan Quan <evan.quan@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: "Pan, Xinhui" <Xinhui.Pan@amd.com>
Cc: David Airlie <airlied@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Xiaojian Du <Xiaojian.Du@amd.com>
Cc: Huang Rui <ray.huang@amd.com>
Cc: Kevin Wang <kevin1.wang@amd.com>
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230922173216.3823169-1-keescook@chromium.org
This commit is contained in:
Kees Cook 2023-09-22 10:32:06 -07:00 committed by Christian König
parent 407c0ad5b1
commit a640e3c3a5
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.h
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@ -192,7 +192,7 @@ struct smu10_clock_voltage_dependency_record {
struct smu10_voltage_dependency_table {
uint32_t count;
struct smu10_clock_voltage_dependency_record entries[];
struct smu10_clock_voltage_dependency_record entries[] __counted_by(count);
};
struct smu10_clock_voltage_information {