--- src/sys/net/Attic/if_iso88025subr.c	2005/11/28 17:13:45	1.14
+++ src/sys/net/Attic/if_iso88025subr.c	2005/11/30 13:35:24	1.15
@@ -402,7 +402,7 @@ iso88025_input(struct ifnet *ifp, struct
 #ifdef INET
 	case ETHERTYPE_IP:
 		th->iso88025_shost[0] &= ~(TR_RII);
-		if (ipflow_fastforward(m))
+		if (ipflow_fastforward(m, ifp->if_serializer))
 			return;
 		isr = NETISR_IP;
 		break;