Re: [PATCH] wifi: mwifiex: replace one-element arrays with flexible array members

[Francesco Dolcini]

On Mon, Jul 13, 2026 at 01:23:34AM +0300, Georgi Valkov wrote:
> Replace deprecated one-element arrays with flexible array members.
> CONFIG_FORTIFY_SOURCE reports the following warning when
> one-element arrays are used as variable-length buffers:
> 
> sta_cmd.c:1033 mwifiex_sta_prepare_cmd
> memcpy: detected field-spanning write (size 84) of single field
> "domain->triplet" at .../marvell/mwifiex/sta_cmd.c:1033 (size 3)
> 
> Convert affected structs to use flexible array members.
> - Preserve existing wire layouts.
> - Replace affected uses of sizeof(member) with sizeof(type).
> - Replace unions containing one-element arrays with
>   u8 flexible arrays, and document the stored parameter-set type.
> 
> Tested-on: WRT3200ACM, OpenWrt
> Signed-off-by: Georgi Valkov <gvalkov@xxxxxxxxx>

Reviewed-by: Francesco Dolcini <francesco.dolcini@xxxxxxxxxxx>