Index: uspace/srv/net/slip/slip.c
===================================================================
--- uspace/srv/net/slip/slip.c	(revision 443a0bc31e2c9e5fe4de7fc434ba861abbebac1b)
+++ uspace/srv/net/slip/slip.c	(revision dc122622bc947e1d697ecaa0da3e88b197e31f5e)
@@ -260,4 +260,5 @@
  				 * through.
  				 */
+				/* Fallthrough */
  
 			default:
Index: uspace/srv/net/tcp/conn.c
===================================================================
--- uspace/srv/net/tcp/conn.c	(revision 443a0bc31e2c9e5fe4de7fc434ba861abbebac1b)
+++ uspace/srv/net/tcp/conn.c	(revision dc122622bc947e1d697ecaa0da3e88b197e31f5e)
@@ -1075,4 +1075,5 @@
 			/* Connection not synchronized */
 			assert(false);
+			/* Fallthrough */
 		case st_syn_received:
 		case st_established: