Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) client-ip=2620:137:e000::1:18;
MIME-Version: 1.0
References: <202205271546.oV14N2r8-lkp@intel.com> <CADnq5_NOkqRsoqELkLayNU+xArXd-4RO=_banvJpXHtSW4-YdA@mail.gmail.com>
 <CAD=4a=WRbp8w4DA2c6hE7W5A2-woRyHLvtC-GPitFwQireCeNw@mail.gmail.com> <20220602115046.GH2168@kadam>
In-Reply-To: <20220602115046.GH2168@kadam>
From:   Alex Deucher <alexdeucher@gmail.com>
Date:   Thu, 2 Jun 2022 10:24:58 -0400
Message-ID: <CADnq5_PZBV0wAnNSLSdTc_8acaK3F6ZKDpcgwktmNaR9DKxG9Q@mail.gmail.com>
Subject: Re: [kbuild] drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c:1433
 amdgpu_discovery_get_vcn_info() error: buffer overflow 'adev->vcn.vcn_codec_disable_mask'
 2 <= 3
To:     Dan Carpenter <dan.carpenter@oracle.com>
Cc:     =?UTF-8?Q?Ernst_Sj=C3=B6strand?= <ernstp@gmail.com>,
        kbuild-all@lists.01.org, kernel test robot <lkp@intel.com>,
        kbuild@lists.01.org, LKML <linux-kernel@vger.kernel.org>,
        amd-gfx list <amd-gfx@lists.freedesktop.org>,
        Alex Deucher <alexander.deucher@amd.com>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
Precedence: bulk

On Thu, Jun 2, 2022 at 7:51 AM Dan Carpenter <dan.carpenter@oracle.com> wro=
te:
>
> On Thu, Jun 02, 2022 at 08:26:03AM +0200, Ernst Sj=C3=B6strand wrote:
> > Dan: I also ran Smatch which resulted in the following discussion:
> >
> > https://lists.freedesktop.org/archives/amd-gfx/2022-May/079228.html
>
> Since the bounds check is dead code which does not make sense and is not
> required, another idea would be to just delete it.

It wouldn't be dead code if AMDGPU_MAX_VCN_INSTANCES ever increased.

Alex

>
> regards,
> dan carpenter
>