Re: [RESEND][PATCH] drm/nouveau/fb/ga102: Replace zero-length array of trailing structs with flex-array

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On Mon, Jan 16, 2023 at 5:24 PM Karol Herbst <kherbst@xxxxxxxxxx> wrote:
>
> On Wed, Jan 4, 2023 at 1:52 AM Gustavo A. R. Silva
> <gustavoars@xxxxxxxxxx> wrote:
> >
> > On Tue, Jan 03, 2023 at 03:48:36PM -0800, Kees Cook wrote:
> > > Zero-length arrays are deprecated[1] and are being replaced with
> > > flexible array members in support of the ongoing efforts to tighten the
> > > FORTIFY_SOURCE routines on memcpy(), correctly instrument array indexing
> > > with UBSAN_BOUNDS, and to globally enable -fstrict-flex-arrays=3.
> > >
> > > Replace zero-length array with flexible-array member.
> > >
> > > This results in no differences in binary output.
> > >
> > > [1] https://github.com/KSPP/linux/issues/78
> > >
> > > Cc: Ben Skeggs <bskeggs@xxxxxxxxxx>
> > > Cc: Karol Herbst <kherbst@xxxxxxxxxx>
> > > Cc: Lyude Paul <lyude@xxxxxxxxxx>
> > > Cc: David Airlie <airlied@xxxxxxxxx>
> > > Cc: Daniel Vetter <daniel@xxxxxxxx>
> > > Cc: Gourav Samaiya <gsamaiya@xxxxxxxxxx>
> > > Cc: "Gustavo A. R. Silva" <gustavoars@xxxxxxxxxx>
> > > Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
> > > Cc: nouveau@xxxxxxxxxxxxxxxxxxxxx
> > > Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
> >
> > Here is my RB again:
> >
> > Reviewed-by: Gustavo A. R. Silva <gustavoars@xxxxxxxxxx>
> >
>
> Reviewed-by: Karol Herbst <kherbst@xxxxxxxxxx>
>
> will push in a moment
>

just noticed it's the same change than the other one... anyway, will
push the oldest one

> > Thanks!
> > --
> > Gustavo
> >
> > > ---
> > > Sent before as: https://lore.kernel.org/all/20221118211207.never.039-kees@xxxxxxxxxx/
> > > ---
> > >  drivers/gpu/drm/nouveau/include/nvfw/hs.h | 2 +-
> > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > diff --git a/drivers/gpu/drm/nouveau/include/nvfw/hs.h b/drivers/gpu/drm/nouveau/include/nvfw/hs.h
> > > index 8c4cd08a7b5f..8b58b668fc0c 100644
> > > --- a/drivers/gpu/drm/nouveau/include/nvfw/hs.h
> > > +++ b/drivers/gpu/drm/nouveau/include/nvfw/hs.h
> > > @@ -52,7 +52,7 @@ struct nvfw_hs_load_header_v2 {
> > >       struct {
> > >               u32 offset;
> > >               u32 size;
> > > -     } app[0];
> > > +     } app[];
> > >  };
> > >
> > >  const struct nvfw_hs_load_header_v2 *nvfw_hs_load_header_v2(struct nvkm_subdev *, const void *);
> > > --
> > > 2.34.1
> > >
> >




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