drm/vc4: mark vc4_bo_cache_purge() static

Baoyou Xie · anholt · commit ea9038383733 · 2016-09-09T12:21:43.000-07:00
We get 1 warning when building kernel with W=1:
drivers/gpu/drm/vc4/vc4_bo.c:147:6: warning: no previous prototype for 'vc4_bo_cache_purge' [-Wmissing-prototypes]

In fact, this function is only used in the file in which it is
declared and don't need a declaration, but can be made static.
So this patch marks it 'static'.

Signed-off-by: Baoyou Xie &lt;baoyou.xie@linaro.org&gt;
Signed-off-by: Eric Anholt &lt;eric@anholt.net&gt;
diff --git a/drivers/gpu/drm/vc4/vc4_bo.c b/drivers/gpu/drm/vc4/vc4_bo.c
@@ -144,7 +144,7 @@ static struct list_head *vc4_get_cache_list_for_size(struct drm_device *dev,
 	return &vc4->bo_cache.size_list[page_index];
 }
 
-void vc4_bo_cache_purge(struct drm_device *dev)
+static void vc4_bo_cache_purge(struct drm_device *dev)
 {
 	struct vc4_dev *vc4 = to_vc4_dev(dev);
 

Original file line number	Diff line number	Diff line change
`@@ -144,7 +144,7 @@ static struct list_head vc4_get_cache_list_for_size(struct drm_device dev,`
`144`	`144`	`return &vc4->bo_cache.size_list[page_index];`
`145`	`145`	`}`
`146`	`146`
`147`		`-void vc4_bo_cache_purge(struct drm_device *dev)`
	`147`	`+static void vc4_bo_cache_purge(struct drm_device *dev)`
`148`	`148`	`{`
`149`	`149`	`struct vc4_dev *vc4 = to_vc4_dev(dev);`
`150`	`150`