drm/amd/display: remove set but not used variable 'old_plane_crtc'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c: In function dm_determine_update_type_for_commit:
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c:6516:36: warning: variable old_plane_crtc set but not used [-Wunused-but-set-variable]

It is introduced by commit a87fa9938749 ("drm/amd/display:
Build stream update and plane updates in dm"), but never used,
so remove it.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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 c2700bc..700cbd5 100644 (file)
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -7611,7 +7611,7 @@ dm_determine_update_type_for_commit(struct amdgpu_display_manager *dm,
        int i, j, num_plane, ret = 0;
        struct drm_plane_state *old_plane_state, *new_plane_state;
        struct dm_plane_state *new_dm_plane_state, *old_dm_plane_state;
-       struct drm_crtc *new_plane_crtc, *old_plane_crtc;
+       struct drm_crtc *new_plane_crtc;
        struct drm_plane *plane;
 
        struct drm_crtc *crtc;
@@ -7657,7 +7657,6 @@ dm_determine_update_type_for_commit(struct amdgpu_display_manager *dm,
                        uint64_t tiling_flags;
 
                        new_plane_crtc = new_plane_state->crtc;
-                       old_plane_crtc = old_plane_state->crtc;
                        new_dm_plane_state = to_dm_plane_state(new_plane_state);
                        old_dm_plane_state = to_dm_plane_state(old_plane_state);