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* [PATCH] drm/amd/display: Fix build warnings
@ 2021-04-21 16:18 Guenter Roeck
  2021-04-28 21:12 ` Alex Deucher
  0 siblings, 1 reply; 2+ messages in thread
From: Guenter Roeck @ 2021-04-21 16:18 UTC (permalink / raw)
  To: Harry Wentland
  Cc: David Airlie, linux-kernel, dri-devel, amd-gfx, Guenter Roeck

Fix the following build warnings.

drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:
	In function ‘dm_update_mst_vcpi_slots_for_dsc’:
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:6242:46:
	warning: variable ‘old_con_state’ set but not used

drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:
	In function ‘amdgpu_dm_commit_cursors’:
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:7709:44:
	warning: variable ‘new_plane_state’ set but not used

The variables were introduced to be used in iterators, but not used.
Use other iterators which don't require the unused variables.

Fixes: 8ad278062de4e ("drm/amd/display: Disable cursors before disabling planes")
Fixes: 29b9ba74f6384 ("drm/amd/display: Recalculate VCPI slots for new DSC connectors")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

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 573cf17262da..f9b87f1f424b 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -6239,13 +6239,13 @@ static int dm_update_mst_vcpi_slots_for_dsc(struct drm_atomic_state *state,
 {
 	struct dc_stream_state *stream = NULL;
 	struct drm_connector *connector;
-	struct drm_connector_state *new_con_state, *old_con_state;
+	struct drm_connector_state *new_con_state;
 	struct amdgpu_dm_connector *aconnector;
 	struct dm_connector_state *dm_conn_state;
 	int i, j, clock, bpp;
 	int vcpi, pbn_div, pbn = 0;
 
-	for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
+	for_each_new_connector_in_state(state, connector, new_con_state, i) {
 
 		aconnector = to_amdgpu_dm_connector(connector);
 
@@ -7706,15 +7706,14 @@ static void amdgpu_dm_handle_vrr_transition(struct dm_crtc_state *old_state,
 static void amdgpu_dm_commit_cursors(struct drm_atomic_state *state)
 {
 	struct drm_plane *plane;
-	struct drm_plane_state *old_plane_state, *new_plane_state;
+	struct drm_plane_state *old_plane_state;
 	int i;
 
 	/*
 	 * TODO: Make this per-stream so we don't issue redundant updates for
 	 * commits with multiple streams.
 	 */
-	for_each_oldnew_plane_in_state(state, plane, old_plane_state,
-				       new_plane_state, i)
+	for_each_old_plane_in_state(state, plane, old_plane_state, i)
 		if (plane->type == DRM_PLANE_TYPE_CURSOR)
 			handle_cursor_update(plane, old_plane_state);
 }
-- 
2.17.1

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