[PATCH] drm/ast: Make the symbol 'ast_mode_config_mode_valid' static

[zhong jiang]

Fix the following sparse warning.

drivers/gpu/drm/ast/ast_main.c:391:22: warning: symbol 'ast_mode_config_mode_valid' was not declared. Should it be static?

Signed-off-by: zhong jiang <zhongjiang@xxxxxxxxxx>
---
 drivers/gpu/drm/ast/ast_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c
index b79f484..f0d2082 100644
--- a/drivers/gpu/drm/ast/ast_main.c
+++ b/drivers/gpu/drm/ast/ast_main.c
@@ -388,8 +388,8 @@ static int ast_get_dram_info(struct drm_device *dev)
 	return 0;
 }
 
-enum drm_mode_status ast_mode_config_mode_valid(struct drm_device *dev,
-						const struct drm_display_mode *mode)
+static enum drm_mode_status ast_mode_config_mode_valid(struct drm_device *dev,
+				       const struct drm_display_mode *mode)
 {
 	static const unsigned long max_bpp = 4; /* DRM_FORMAT_XRGBA8888 */
 
-- 
1.7.12.4