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

[Alex Deucher]

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