Index: kernel/generic/src/ipc/ipc.c
===================================================================
--- kernel/generic/src/ipc/ipc.c	(revision 0dc42582dd8576cb549a4c57b39e2ab339462b4a)
+++ kernel/generic/src/ipc/ipc.c	(revision e0bc7fccf48d7dd22900a4d0cf37421c390e5f62)
@@ -234,4 +234,5 @@
  * @param phone		Phone structure the call comes from.
  * @param box		Destination answerbox structure.
+ * @param call		Call structure with request.
  */
 static void _ipc_call(phone_t *phone, answerbox_t *box, call_t *call)
Index: kernel/generic/src/ipc/sysipc.c
===================================================================
--- kernel/generic/src/ipc/sysipc.c	(revision 0dc42582dd8576cb549a4c57b39e2ab339462b4a)
+++ kernel/generic/src/ipc/sysipc.c	(revision e0bc7fccf48d7dd22900a4d0cf37421c390e5f62)
@@ -100,6 +100,5 @@
 /** Decide if the message with this method is immutable on forward.
  *
- * - some system messages may be forwarded, for some of them
- *   it is useless
+ * - some system messages may be forwarded but their content cannot be altered
  *
  * @param method	Method to be decided.