Date: Thu, 11 Aug 2022 18:10:48 +0100
From: "Sudip Mukherjee (Codethink)" <sudipm.mukherjee@gmail.com>
To: Alex Deucher <alexander.deucher@amd.com>,
 Hamza Mahfooz <hamza.mahfooz@amd.com>, Fangzhi Zuo <Jerry.Zuo@amd.com>
Subject: build failure of next-20220811 due to b1a63a0b48ad
 ("drm/amd/display: consider DSC pass-through during mode validation")
Message-ID: <YvU4GD8HtZ1A4dhI@debian>
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Cc: 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,
 Christian =?iso-8859-1?Q?K=F6nig?= <christian.koenig@amd.com>
Errors-To: dri-devel-bounces@lists.freedesktop.org
Sender: "dri-devel" <dri-devel-bounces@lists.freedesktop.org>

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.


--
Regards
Sudip