st/dri: Add comment for intentional fallthrough in case statement.

diff --git a/src/gallium/state_trackers/dri/dri_drawable.c b/src/gallium/state_trackers/dri/dri_drawable.c
index 0a8c1cd..99dc022 100644 (file)
--- a/src/gallium/state_trackers/dri/dri_drawable.c
+++ b/src/gallium/state_trackers/dri/dri_drawable.c
@@ -183,6 +183,7 @@ dri_get_buffers(__DRIdrawablePrivate * dPriv)
       case __DRI_BUFFER_FRONT_LEFT:
         if (!st_screen->auto_fake_front)
            continue;
+        /* fallthrough */
       case __DRI_BUFFER_FAKE_FRONT_LEFT:
         index = ST_SURFACE_FRONT_LEFT;
         format = drawable->color_format;