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interconnect: icc-clk: Annotate struct icc_clk_provider 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 icc_clk_provider.

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

Cc: Georgi Djakov <djakov@kernel.org>
Cc: linux-pm@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20230817202914.never.661-kees@kernel.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
This commit is contained in:
Kees Cook 2023-08-17 13:29:15 -07:00 committed by Georgi Djakov
parent cb8790102b
commit b1e0cdb0f6
1 changed files with 1 additions and 1 deletions
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2
drivers/interconnect/icc-clk.c
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@ -16,7 +16,7 @@ struct icc_clk_node {
struct icc_clk_provider {
struct icc_provider provider;
int num_clocks;
struct icc_clk_node clocks[];
struct icc_clk_node clocks[] __counted_by(num_clocks);
};
#define to_icc_clk_provider(_provider) \