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* [PATCH] drm/amdgpu/display/mst: fix an unused-variable warning
@ 2023-01-26 16:35 Arnd Bergmann
  2023-01-26 21:07 ` Hamza Mahfooz
  0 siblings, 1 reply; 3+ messages in thread
From: Arnd Bergmann @ 2023-01-26 16:35 UTC (permalink / raw)
  To: Harry Wentland, Leo Li, Rodrigo Siqueira
  Cc: Arnd Bergmann, Alex Deucher, Christian König, Pan, Xinhui,
	David Airlie, Daniel Vetter, Roman Li, Wayne Lin,
	Aurabindo Pillai, Stylon Wang, hersen wu, Lyude Paul, amd-gfx,
	dri-devel, linux-kernel

From: Arnd Bergmann <arnd@arndb.de>

The newly added code is in an #ifdef, so the variables that
are only used in there cause a warning if CONFIG_DRM_AMD_DC_DCN
is disabled:

drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c: In function 'amdgpu_dm_atomic_check':
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:9698:43: error: unused variable 'mst_state' [-Werror=unused-variable]
 9698 |         struct drm_dp_mst_topology_state *mst_state;
      |                                           ^~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:9697:41: error: unused variable 'mgr' [-Werror=unused-variable]
 9697 |         struct drm_dp_mst_topology_mgr *mgr;
      |                                         ^~~

Fixes: c689e1e362ea ("drm/amdgpu/display/mst: Fix mst_state->pbn_div and slot count assignments")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 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 be1232356f9e..c966bb05f6c7 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -9694,8 +9694,10 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev,
 	struct drm_connector_state *old_con_state, *new_con_state;
 	struct drm_crtc *crtc;
 	struct drm_crtc_state *old_crtc_state, *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;
+#endif
 	struct drm_plane *plane;
 	struct drm_plane_state *old_plane_state, *new_plane_state;
 	enum dc_status status;
-- 
2.39.0


^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2023-01-27  3:55 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-01-26 16:35 [PATCH] drm/amdgpu/display/mst: fix an unused-variable warning Arnd Bergmann
2023-01-26 21:07 ` Hamza Mahfooz
2023-01-27  3:55   ` Dave Airlie

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