--- openflow-2011-11-08.h	2015-07-23 09:54:16.820479349 -0700
+++ openflow-2011-11-15.h	2015-07-23 09:54:16.824479349 -0700
@@ -1407,7 +1407,9 @@
 /* ofp_error_msg 'code' values for OFPET_ROLE_REQUEST_FAILED. 'data' contains
  * at least the first 64 bytes of the failed request. */
 enum ofp_role_request_failed_code {
-    OFPRRFC_STALE               /* Stale Message: old generation_id. */
+    OFPRRFC_STALE,               /* Stale Message: old generation_id. */
+    OFPRRFC_UNSUP,               /* Controller role change unsupported. */
+    OFPRRFC_BAD_ROLE,            /* Invalid role. */
 };
 
 /* OFPT_ERROR: Error message (datapath -> controller). */