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

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Message-ID: <20210831104931.04c91075@canb.auug.org.au>
Date:   Tue, 31 Aug 2021 10:49:31 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Kees Cook <keescook@...omium.org>
Cc:     "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Anitha Chrisanthus <anitha.chrisanthus@...el.com>,
        Sam Ravnborg <sam@...nborg.org>, edmund.j.dea@...el.com
Subject: Re: linux-next: build warning after merge of the kspp tree

Hi Kees,

On Mon, 30 Aug 2021 16:50:55 -0700 Kees Cook <keescook@...omium.org> wrote:
>
> On August 30, 2021 1:44:29 AM PDT, Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> >
> >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];
> >      |                       ^~~~~~~~~~~~  
> 
> 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/

ok, thanks

-- 
Cheers,
Stephen Rothwell

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