Re: [PATCH v3] wifi: mwifiex: replace one-element arrays with flexible array members

[Francesco Dolcini <francesco@dolcini.it>]

On Thu, Jul 16, 2026 at 09:27:23AM +0300, Dan Carpenter wrote:
> On Thu, Jul 16, 2026 at 08:16:38AM +0200, Francesco Dolcini wrote:
> > On Thu, Jul 16, 2026 at 03:17:28AM +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.
> > > - Use DECLARE_FLEX_ARRAY() for structs inside affected unions.
> > > 
> > > Tested-on: WRT3200ACM, OpenWrt
> > > Signed-off-by: Georgi Valkov <gvalkov@gmail.com>
> > 
> > Cc: stable@vger.kernel.org # 6.12+
> > Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
> 
> Are we CCing stable for this sort of thing?  How many FORTIFY_SOURCE
> warnings are still remaining?

Yes, you are right, my mistake.

Johannes, please be sure to not have the stable tag in once you apply the
patch.

Francesco