diff --git a/include/linux/tipc.h b/include/linux/tipc.h
index 9536d8a..181c8d0 100644
--- a/include/linux/tipc.h
+++ b/include/linux/tipc.h
@@ -107,7 +107,7 @@
  * Message importance levels
  */
 
-#define TIPC_LOW_IMPORTANCE		0  /* default */
+#define TIPC_LOW_IMPORTANCE		0
 #define TIPC_MEDIUM_IMPORTANCE		1
 #define TIPC_HIGH_IMPORTANCE		2
 #define TIPC_CRITICAL_IMPORTANCE	3
@@ -182,7 +182,7 @@
 		struct tipc_name_seq nameseq;
 		struct {
 			struct tipc_name name;
-			__u32 domain; /* 0: own zone */
+			__u32 domain;
 		} name;
 	} addr;
 };
@@ -200,7 +200,7 @@
  */
 
 #define TIPC_IMPORTANCE		127	/* Default: TIPC_LOW_IMPORTANCE */
-#define TIPC_SRC_DROPPABLE	128	/* Default: 0 (resend congested msg) */
+#define TIPC_SRC_DROPPABLE	128	/* Default: based on socket type */
 #define TIPC_DEST_DROPPABLE	129	/* Default: based on socket type */
 #define TIPC_CONN_TIMEOUT	130	/* Default: 8000 (ms)  */
 #define TIPC_NODE_RECVQ_DEPTH	131	/* Default: none (read only) */