wifi: rtw89: coex: add annotation __counted_by() to struct rtw89_btc_btf_set_mon_reg

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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 via CONFIG_UBSAN_BOUNDS (for
array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family
functions).

Use struct_size() and flex_array_size() helpers to calculate proper sizes
for allocation and memcpy().

Don't change logic at all, and result is identical as before.

Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20231011063725.25276-2-pkshih@realtek.com

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Ping-Ke Shih 2023-10-11 14:37:25 +08:00 • committed by Kalle Valo

parent 07202dc12b

commit 618071ae0f

1 changed files with 5 additions and 6 deletions

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drivers/net/wireless/realtek/rtw89/coex.c

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