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From:   Alex Deucher <alexdeucher@gmail.com>
Date:   Thu, 11 Aug 2022 13:16:14 -0400
Message-ID: <CADnq5_PwbwjmvvKedpZeeQHk7N+kawKpXywjNGqa=1jSKRcw0A@mail.gmail.com>
Subject: Re: build failure of next-20220811 due to b1a63a0b48ad
 ("drm/amd/display: consider DSC pass-through during mode validation")
To:     "Sudip Mukherjee (Codethink)" <sudipm.mukherjee@gmail.com>
Cc:     Alex Deucher <alexander.deucher@amd.com>,
        Hamza Mahfooz <hamza.mahfooz@amd.com>,
        Fangzhi Zuo <Jerry.Zuo@amd.com>,
        David Airlie <airlied@linux.ie>,
        "Pan, Xinhui" <Xinhui.Pan@amd.com>, linux-kernel@vger.kernel.org,
        dri-devel@lists.freedesktop.org, linux-next@vger.kernel.org,
        amd-gfx@lists.freedesktop.org,
        =?UTF-8?Q?Christian_K=C3=B6nig?= <christian.koenig@amd.com>
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On Thu, Aug 11, 2022 at 1:11 PM Sudip Mukherjee (Codethink)
<sudipm.mukherjee@gmail.com> wrote:
>
> Hi All,
>
> Not sure if it has been reported, builds of riscv, alpha, s390, arm,
> arm64, xtensa, mips, csky allmodconfig have failed to build next-20220811
> with the error:
>
> ERROR: modpost: "dc_dsc_compute_bandwidth_range" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined!
> ERROR: modpost: "dc_dsc_get_policy_for_timing" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined!
>
> git bisect pointed to b1a63a0b48ad ("drm/amd/display: consider DSC pass-through during mode validation")
> And, reverting that commit has fixed the build failure.
>
> I will be happy to test any patch or provide any extra log if needed.

https://patchwork.freedesktop.org/patch/497116/

Alex

>
>
> --
> Regards
> Sudip