diff --git a/drivers/gpu/drm/drm_syncobj.c b/drivers/gpu/drm/drm_syncobj.c
index a5b38a8..3db0425 100644
--- a/drivers/gpu/drm/drm_syncobj.c
+++ b/drivers/gpu/drm/drm_syncobj.c
@@ -275,8 +275,8 @@ static int drm_syncobj_fd_to_handle(struct drm_file *file_private,
 	return 0;
 }
 
-int drm_syncobj_import_sync_file_fence(struct drm_file *file_private,
-				       int fd, int handle)
+static int drm_syncobj_import_sync_file_fence(struct drm_file *file_private,
+					      int fd, int handle)
 {
 	struct dma_fence *fence = sync_file_get_fence(fd);
 	struct drm_syncobj *syncobj;
@@ -296,8 +296,8 @@ int drm_syncobj_import_sync_file_fence(struct drm_file *file_private,
 	return 0;
 }
 
-int drm_syncobj_export_sync_file(struct drm_file *file_private,
-				 int handle, int *p_fd)
+static int drm_syncobj_export_sync_file(struct drm_file *file_private,
+					int handle, int *p_fd)
 {
 	int ret;
 	struct dma_fence *fence;