diff --git a/drivers/gpu/drm/udl/udl_modeset.c b/drivers/gpu/drm/udl/udl_modeset.c
index 9159d48d1dfd..8f258158c1fe 100644
--- a/drivers/gpu/drm/udl/udl_modeset.c
+++ b/drivers/gpu/drm/udl/udl_modeset.c
@@ -391,7 +391,7 @@ static const struct drm_crtc_funcs udl_crtc_funcs = {
 	.destroy = udl_crtc_destroy,
 };
 
-int udl_crtc_init(struct drm_device *dev)
+static int udl_crtc_init(struct drm_device *dev)
 {
 	struct drm_crtc *crtc;