linux-kernel - Re: build failure of next-20220811 due to b1a63a0b48ad ("drm/amd/display: consider DSC pass-through during mode validation")

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Date:   Thu, 11 Aug 2022 13:16:14 -0400
From:   Alex Deucher <alexdeucher@...il.com>
To:     "Sudip Mukherjee (Codethink)" <sudipm.mukherjee@...il.com>
Cc:     Alex Deucher <alexander.deucher@....com>,
        Hamza Mahfooz <hamza.mahfooz@....com>,
        Fangzhi Zuo <Jerry.Zuo@....com>,
        David Airlie <airlied@...ux.ie>,
        "Pan, Xinhui" <Xinhui.Pan@....com>, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, linux-next@...r.kernel.org,
        amd-gfx@...ts.freedesktop.org,
        Christian König <christian.koenig@....com>
Subject: Re: build failure of next-20220811 due to b1a63a0b48ad
 ("drm/amd/display: consider DSC pass-through during mode validation")

On Thu, Aug 11, 2022 at 1:11 PM Sudip Mukherjee (Codethink)
<sudipm.mukherjee@...il.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