Arnd Bergmann <arnd@xxxxxxxx> wrote:
> gcc-10 reports a warning for mwifiex_cmd_802_11_key_material_v1:
>
> drivers/net/wireless/marvell/mwifiex/sta_cmd.c: In function 'mwifiex_cmd_802_11_key_material_v1':
> cc1: warning: writing 16 bytes into a region of size 0 [-Wstringop-overflow=]
> In file included from drivers/net/wireless/marvell/mwifiex/sta_cmd.c:23:
> drivers/net/wireless/marvell/mwifiex/fw.h:993:9: note: at offset 0 to object 'action' with size 2 declared here
> 993 | __le16 action;
> | ^~~~~~
>
> As the warning makes no sense, I reported it as a bug for gcc. In the
> meantime using a temporary pointer for the key data makes the code easier
> to read and stops the warning.
>
> Fixes: 5e6e3a92b9a4 ("wireless: mwifiex: initial commit for Marvell mwifiex driver")
> Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94881
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Patch applied to wireless-drivers-next.git, thanks.
08afb432c996 mwifiex: avoid -Wstringop-overflow warning
--
https://patchwork.kernel.org/patch/11521661/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
