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Date:   Mon, 28 Feb 2022 14:46:44 +1100
From:   Stephen Rothwell <sfr@canb.auug.org.au>
To:     Dave Airlie <airlied@linux.ie>
Cc:     broonie@kernel.org, DRI <dri-devel@lists.freedesktop.org>,
        Allen Chen <allen.chen@ite.com.tw>,
        Hsin-yi Wang <hsinyi@chromium.org>,
        Hermes Wu <hermes.wu@ite.com.tw>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>,
        Robert Foss <robert.foss@linaro.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Linux Next Mailing List <linux-next@vger.kernel.org>
Subject: Re: linux-next: build failure after merge of the drm tree
Message-ID: <20220228144644.776c5261@canb.auug.org.au>
In-Reply-To: <20220225164231.904173-1-broonie@kernel.org>
References: <20220225164231.904173-1-broonie@kernel.org>
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Hi all,

On Fri, 25 Feb 2022 16:42:31 +0000 broonie@kernel.org wrote:
>
> After merging the drm tree, today's linux-next build (x86 allmodconfig)
> failed like this:
>=20
> /tmp/next/build/drivers/gpu/drm/bridge/ite-it6505.c: In function 'receive=
_timing_debugfs_show':
> /tmp/next/build/drivers/gpu/drm/bridge/ite-it6505.c:3077:23: error: array=
 subscript 4096 is outside array bounds of 'u8[200]' {aka 'unsigned char[20=
0]'} [-Werror=3Darray-bounds]
>  3077 |  u8 *str =3D read_buf, *end =3D read_buf + PAGE_SIZE;
>       |                       ^~~
> /tmp/next/build/drivers/gpu/drm/bridge/ite-it6505.c:3076:5: note: while r=
eferencing 'read_buf'
>  3076 |  u8 read_buf[READ_BUFFER_SIZE];
>       |     ^~~~~~~~
> /tmp/next/build/drivers/gpu/drm/bridge/ite-it6505.c:3077:23: error: array=
 subscript 4096 is outside array bounds of 'u8[200]' {aka 'unsigned char[20=
0]'} [-Werror=3Darray-bounds]
>  3077 |  u8 *str =3D read_buf, *end =3D read_buf + PAGE_SIZE;
>       |                       ^~~
> /tmp/next/build/drivers/gpu/drm/bridge/ite-it6505.c:3076:5: note: while r=
eferencing 'read_buf'
>  3076 |  u8 read_buf[READ_BUFFER_SIZE];
>       |     ^~~~~~~~
> /tmp/next/build/drivers/gpu/drm/bridge/ite-it6505.c:3077:23: error: array=
 subscript 4096 is outside array bounds of 'u8[200]' {aka 'unsigned char[20=
0]'} [-Werror=3Darray-bounds]
>  3077 |  u8 *str =3D read_buf, *end =3D read_buf + PAGE_SIZE;
>       |                       ^~~
> /tmp/next/build/drivers/gpu/drm/bridge/ite-it6505.c:3076:5: note: while r=
eferencing 'read_buf'
>  3076 |  u8 read_buf[READ_BUFFER_SIZE];
>       |     ^~~~~~~~
> /tmp/next/build/drivers/gpu/drm/bridge/ite-it6505.c:3077:23: error: array=
 subscript 4096 is outside array bounds of 'u8[200]' {aka 'unsigned char[20=
0]'} [-Werror=3Darray-bounds]
>  3077 |  u8 *str =3D read_buf, *end =3D read_buf + PAGE_SIZE;
>       |                       ^~~
> /tmp/next/build/drivers/gpu/drm/bridge/ite-it6505.c:3076:5: note: while r=
eferencing 'read_buf'
>  3076 |  u8 read_buf[READ_BUFFER_SIZE];
>       |     ^~~~~~~~
> /tmp/next/build/drivers/gpu/drm/bridge/ite-it6505.c:3077:23: error: array=
 subscript 4096 is outside array bounds of 'u8[200]' {aka 'unsigned char[20=
0]'} [-Werror=3Darray-bounds]
>  3077 |  u8 *str =3D read_buf, *end =3D read_buf + PAGE_SIZE;
>       |                       ^~~
> /tmp/next/build/drivers/gpu/drm/bridge/ite-it6505.c:3076:5: note: while r=
eferencing 'read_buf'
>  3076 |  u8 read_buf[READ_BUFFER_SIZE];
>       |     ^~~~~~~~
> /tmp/next/build/drivers/gpu/drm/bridge/ite-it6505.c:3077:23: error: array=
 subscript 4096 is outside array bounds of 'u8[200]' {aka 'unsigned char[20=
0]'} [-Werror=3Darray-bounds]
>  3077 |  u8 *str =3D read_buf, *end =3D read_buf + PAGE_SIZE;
>       |                       ^~~
> /tmp/next/build/drivers/gpu/drm/bridge/ite-it6505.c:3076:5: note: while r=
eferencing 'read_buf'
>  3076 |  u8 read_buf[READ_BUFFER_SIZE];
>       |     ^~~~~~~~
> /tmp/next/build/drivers/gpu/drm/bridge/ite-it6505.c:3077:23: error: array=
 subscript 4096 is outside array bounds of 'u8[200]' {aka 'unsigned char[20=
0]'} [-Werror=3Darray-bounds]
>  3077 |  u8 *str =3D read_buf, *end =3D read_buf + PAGE_SIZE;
>       |                       ^~~
> /tmp/next/build/drivers/gpu/drm/bridge/ite-it6505.c:3076:5: note: while r=
eferencing 'read_buf'
>  3076 |  u8 read_buf[READ_BUFFER_SIZE];
>       |     ^~~~~~~~
> /tmp/next/build/drivers/gpu/drm/bridge/ite-it6505.c:3077:23: error: array=
 subscript 4096 is outside array bounds of 'u8[200]' {aka 'unsigned char[20=
0]'} [-Werror=3Darray-bounds]
>  3077 |  u8 *str =3D read_buf, *end =3D read_buf + PAGE_SIZE;
>       |                       ^~~
> /tmp/next/build/drivers/gpu/drm/bridge/ite-it6505.c:3076:5: note: while r=
eferencing 'read_buf'
>  3076 |  u8 read_buf[READ_BUFFER_SIZE];
>       |     ^~~~~~~~
> /tmp/next/build/drivers/gpu/drm/bridge/ite-it6505.c:3077:23: error: array=
 subscript 4096 is outside array bounds of 'u8[200]' {aka 'unsigned char[20=
0]'} [-Werror=3Darray-bounds]
>  3077 |  u8 *str =3D read_buf, *end =3D read_buf + PAGE_SIZE;
>       |                       ^~~
> /tmp/next/build/drivers/gpu/drm/bridge/ite-it6505.c:3076:5: note: while r=
eferencing 'read_buf'
>  3076 |  u8 read_buf[READ_BUFFER_SIZE];
>       |     ^~~~~~~~
> /tmp/next/build/drivers/gpu/drm/bridge/ite-it6505.c:3077:23: error: array=
 subscript 4096 is outside array bounds of 'u8[200]' {aka 'unsigned char[20=
0]'} [-Werror=3Darray-bounds]
>  3077 |  u8 *str =3D read_buf, *end =3D read_buf + PAGE_SIZE;
>       |                       ^~~
> /tmp/next/build/drivers/gpu/drm/bridge/ite-it6505.c:3076:5: note: while r=
eferencing 'read_buf'
>  3076 |  u8 read_buf[READ_BUFFER_SIZE];
>       |     ^~~~~~~~
> /tmp/next/build/drivers/gpu/drm/bridge/ite-it6505.c:3077:23: error: array=
 subscript 4096 is outside array bounds of 'u8[200]' {aka 'unsigned char[20=
0]'} [-Werror=3Darray-bounds]
>  3077 |  u8 *str =3D read_buf, *end =3D read_buf + PAGE_SIZE;
>       |                       ^~~
> /tmp/next/build/drivers/gpu/drm/bridge/ite-it6505.c:3076:5: note: while r=
eferencing 'read_buf'
>  3076 |  u8 read_buf[READ_BUFFER_SIZE];
>       |     ^~~~~~~~
> cc1: all warnings being treated as errors
>=20
> Caused by commit
>=20
>   b5c84a9edcd418 ("drm/bridge: add it6505 driver")
>=20
> I have used the drm tree from yesterday instead.

I am still getting these errors and so used the drm tree from
next-20220224 again.

--=20
Cheers,
Stephen Rothwell

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