Index: kernel/generic/src/ipc/ipc.c
===================================================================
--- kernel/generic/src/ipc/ipc.c	(revision 75dd55d7399a17f1fe7b170fd0d79e0eed7158c2)
+++ kernel/generic/src/ipc/ipc.c	(revision 2829b3548b37cce65df20809dc2aa97fc53ae85c)
@@ -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 75dd55d7399a17f1fe7b170fd0d79e0eed7158c2)
+++ kernel/generic/src/ipc/sysipc.c	(revision 2829b3548b37cce65df20809dc2aa97fc53ae85c)
@@ -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.