Re: linux-next: build warning after merge of the kspp tree

Kees Cook
2021-08-30T23:51:06Z

On August 30, 2021 1:44:29 AM PDT, Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>Hi all,
>
>After merging the kspp tree, today's linux-next build (powerpc
>allyesconfig) produced this warning:
>
>drivers/gpu/drm/kmb/kmb_plane.c:135:20: warning: array subscript 3 is above array bounds of 'struct layer_status[1]' [-Warray-bounds]
> 135 | kmb->plane_status[plane_id].ctrl = LCD_CTRL_GL2_ENABLE;
> | ~~~~~~~~~~~~~~~~~^~~~~~~~~~
>In file included from drivers/gpu/drm/kmb/kmb_plane.c:17:
>drivers/gpu/drm/kmb/kmb_drv.h:48:23: note: while referencing 'plane_status'
> 48 | struct layer_status plane_status[KMB_MAX_PLANES];
> | ^~~~~~~~~~~~

Hi!

Ah yes, thanks for the report. I encountered this too, and have been told the warning will go away soon:
https://lore.kernel.org/lkml/BY5PR11MB4182ABD607EB99C1F68777928CC69@BY5PR11MB4182.namprd11.prod.outlook.com/

-Kees