[PATCH AUTOSEL 6.1 20/20] amdgpu: fix build on non-DCN platforms.

[Sasha Levin]

From: Dave Airlie <airl...@redhat.com>

[ Upstream commit f439a959dcfb6b39d6fd4b85ca1110a1d1de1587 ]

This fixes the build here locally on my 32-bit arm build.

Signed-off-by: Dave Airlie <airl...@redhat.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c 
b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 15b408e3a705..d756a606b5e2 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -9411,6 +9411,8 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev,
        bool lock_and_validation_needed = false;
        struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state;
 #if defined(CONFIG_DRM_AMD_DC_DCN)
+       struct drm_dp_mst_topology_mgr *mgr;
+       struct drm_dp_mst_topology_state *mst_state;
        struct dsc_mst_fairness_vars vars[MAX_PIPES];
 #endif
 
-- 
2.39.0