[PATCH] drm/amdgpu: fix compiler warnings

[Wayne Lin]

Fixes below compiler warnings:

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:5374:5:
warning: no previous prototype for function
'amdgpu_dm_crtc_atomic_set_property' [-Wmissing-prototypes]
   int amdgpu_dm_crtc_atomic_set_property(struct drm_crtc *crtc,
       ^
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:5374:1:
note: declare 'static' if the function is not intended to be used
outside of this translation unit
   int amdgpu_dm_crtc_atomic_set_property(struct drm_crtc *crtc,
   ^
   static
>> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:5398:5:
warning: no previous prototype for function
'amdgpu_dm_crtc_atomic_get_property' [-Wmissing-prototypes]
   int amdgpu_dm_crtc_atomic_get_property(struct drm_crtc *crtc,
       ^
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:5398:1:
note: declare 'static' if the function is not intended to be used
outside of this translation unit
   int amdgpu_dm_crtc_atomic_get_property(struct drm_crtc *crtc,
   ^
   static
   2 warnings generated.

Reported-by: kernel test robot <lkp at intel.com>
Signed-off-by: Wayne Lin <Wayne.Lin at amd.com>
---
 amdgpu_dm/amdgpu_dm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/amdgpu_dm/amdgpu_dm.c b/amdgpu_dm/amdgpu_dm.c
index 1818d9392..f42046d04 100644
--- a/amdgpu_dm/amdgpu_dm.c
+++ b/amdgpu_dm/amdgpu_dm.c
@@ -4975,7 +4975,7 @@ dm_crtc_duplicate_state(struct drm_crtc *crtc)
 }
 
 #ifdef CONFIG_DEBUG_FS
-int amdgpu_dm_crtc_atomic_set_property(struct drm_crtc *crtc,
+static int amdgpu_dm_crtc_atomic_set_property(struct drm_crtc *crtc,
 					    struct drm_crtc_state *crtc_state,
 					    struct drm_property *property,
 					    uint64_t val)
@@ -4999,7 +4999,7 @@ int amdgpu_dm_crtc_atomic_set_property(struct drm_crtc *crtc,
 	return 0;
 }
 
-int amdgpu_dm_crtc_atomic_get_property(struct drm_crtc *crtc,
+static int amdgpu_dm_crtc_atomic_get_property(struct drm_crtc *crtc,
 					    const struct drm_crtc_state *state,
 					    struct drm_property *property,
 					    uint64_t *val)
-- 
2.17.1