[PATCH -next] drm/amd/display: Fix unused variable warning

* [PATCH -next] drm/amd/display: Fix unused variable warning
@ 2021-02-24  9:49 ` Wei Yongjun
  0 siblings, 0 replies; 5+ messages in thread
From: Wei Yongjun @ 2021-02-24  9:49 UTC (permalink / raw)
  To: Hulk Robot, Harry Wentland, Leo Li, Alex Deucher,
	Christian König, David Airlie, Daniel Vetter,
	Nicholas Kazlauskas, Rodrigo Siqueira, Aurabindo Pillai,
	Stylon Wang, Bhawanpreet Lakha, Bas Nieuwenhuizen, Simon Ser,
	Qingqing Zhuo
  Cc: Wei Yongjun, amd-gfx, dri-devel, linux-kernel

GCC reports the following warning with W=1:

drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:5439:33:
 warning: unused variable 'dm' [-Wunused-variable]
 5439 |  struct amdgpu_display_manager *dm = &adev->dm;
      |                                 ^~

This variable only used when CONFIG_DRM_AMD_DC_DCN is set, this
commit fix the warning.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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 e24a13fd2730..bda8d5f4e56a 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -5436,8 +5436,8 @@ static inline int dm_set_vblank(struct drm_crtc *crtc, bool enable)
 	struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
 	struct amdgpu_device *adev = drm_to_adev(crtc->dev);
 	struct dm_crtc_state *acrtc_state = to_dm_crtc_state(crtc->state);
-	struct amdgpu_display_manager *dm = &adev->dm;
 #if defined(CONFIG_DRM_AMD_DC_DCN)
+	struct amdgpu_display_manager *dm = &adev->dm;
 	unsigned long flags;
 #endif
 	int rc = 0;


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