Re: [PATCH] wireless: ath: work around false-positive stringop-overread warning

[Kalle Valo]

Arnd Bergmann <arnd@xxxxxxxxxx> wrote:

> In a rare arm64 randconfig build, I got multiple warnings for ath11k
> and ath12k:
> 
> In function 'ath11k_peer_assoc_h_ht',
>     inlined from 'ath11k_peer_assoc_prepare' at drivers/net/wireless/ath/ath11k/mac.c:2665:2:
> drivers/net/wireless/ath/ath11k/mac.c:1709:13: error: 'ath11k_peer_assoc_h_ht_masked' reading 10 bytes from a region of size 0 [-Werror=stringop-overread]
>  1709 |         if (ath11k_peer_assoc_h_ht_masked(ht_mcs_mask))
>       |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 
> This happens whenever gcc-13 fails to inline one of the functions
> that take a fixed-length array argument but gets passed a pointer.
> 
> Change these functions to all take a regular pointer argument
> instead.
> 
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> Signed-off-by: Kalle Valo <quic_kvalo@xxxxxxxxxxx>

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

695df2f417d2 wifi: ath: work around false-positive stringop-overread warning

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20230417205447.1800912-1-arnd@xxxxxxxxxx/

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