Re: [PATCH] wifi: ath10k: Annotate struct ath10k_ce_ring with __counted_by

From: Kalle Valo
Date: Thu Sep 21 2023 - 16:58:35 EST


Kees Cook <keescook@xxxxxxxxxxxx> wrote:

> 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 ath10k_ce_ring.
>
> [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
>
> Cc: Kalle Valo <kvalo@xxxxxxxxxx>
> Cc: Jeff Johnson <quic_jjohnson@xxxxxxxxxxx>
> Cc: ath10k@xxxxxxxxxxxxxxxxxxx
> Cc: linux-wireless@xxxxxxxxxxxxxxx
> Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
> Acked-by: Jeff Johnson <quic_jjohnson@xxxxxxxxxxx>
> Reviewed-by: Gustavo A. R. Silva <gustavoars@xxxxxxxxxx>
> Signed-off-by: Kalle Valo <quic_kvalo@xxxxxxxxxxx>

Patch applied to ath-next branch of ath.git, thanks.

3f856f29551f wifi: ath10k: Annotate struct ath10k_ce_ring with __counted_by

--
https://patchwork.kernel.org/project/linux-wireless/patch/20230915200636.never.762-kees@xxxxxxxxxx/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches