1 files changed, 4 insertions, 2 deletions
diff --git a/block.c b/block.c
index 1b098d4d09..46eb1728da 100644
--- a/block.c
+++ b/block.c
@@ -3491,8 +3491,8 @@ BlockDriverState *bdrv_find_base(BlockDriverState *bs)
  *  if active == top, that is considered an error
  *
  */
-int bdrv_drop_intermediate(BlockDriverState *active, BlockDriverState *top,
-                           BlockDriverState *base, const char *backing_file_str)
+int bdrv_drop_intermediate(BlockDriverState *top, BlockDriverState *base,
+                           const char *backing_file_str)
 {
     BdrvChild *c, *next;
     Error *local_err = NULL;
@@ -3510,6 +3510,8 @@ int bdrv_drop_intermediate(BlockDriverState *active, BlockDriverState *top,
     }
 
     /* success - we can delete the intermediate states, and link top->base */
+    /* TODO Check graph modification op blockers (BLK_PERM_GRAPH_MOD) once
+     * we've figured out how they should work. */
     backing_file_str = backing_file_str ? backing_file_str : base->filename;
 
     QLIST_FOREACH_SAFE(c, &top->parents, next_parent, next) {