From ea7fdc0372b9ea876836f1f2ec609a556971931c Mon Sep 17 00:00:00 2001
From: mpi <mpi@openbsd.org>
Date: Mon, 19 Oct 2015 11:59:26 +0000
Subject: [PATCH] Remove superfluous NULL checks.

ifa are refcounted to ensure that rt_ifa is always valid.
---
 sys/netinet/ip_input.c | 5 ++---
 sys/netinet6/frag6.c   | 6 ++----
 2 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/sys/netinet/ip_input.c b/sys/netinet/ip_input.c
index 2d8cc521d8d..ec34355e90a 100644
--- a/sys/netinet/ip_input.c
+++ b/sys/netinet/ip_input.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ip_input.c,v 1.257 2015/10/13 10:29:16 mpi Exp $	*/
+/*	$OpenBSD: ip_input.c,v 1.258 2015/10/19 11:59:26 mpi Exp $	*/
 /*	$NetBSD: ip_input.c,v 1.30 1996/03/16 23:53:58 christos Exp $	*/
 
 /*
@@ -1457,8 +1457,7 @@ ip_forward(struct mbuf *m, struct ifnet *ifp, int srcrt)
 	    satosin(rt_key(rt))->sin_addr.s_addr != 0 &&
 	    ipsendredirects && !srcrt &&
 	    !arpproxy(satosin(rt_key(rt))->sin_addr, m->m_pkthdr.ph_rtableid)) {
-		if (rt->rt_ifa &&
-		    (ip->ip_src.s_addr & ifatoia(rt->rt_ifa)->ia_netmask) ==
+		if ((ip->ip_src.s_addr & ifatoia(rt->rt_ifa)->ia_netmask) ==
 		    ifatoia(rt->rt_ifa)->ia_net) {
 		    if (rt->rt_flags & RTF_GATEWAY)
 			dest = satosin(rt->rt_gateway)->sin_addr.s_addr;
diff --git a/sys/netinet6/frag6.c b/sys/netinet6/frag6.c
index 890f7e4dcdc..3e27729e1d6 100644
--- a/sys/netinet6/frag6.c
+++ b/sys/netinet6/frag6.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: frag6.c,v 1.63 2015/09/10 16:39:39 mpi Exp $	*/
+/*	$OpenBSD: frag6.c,v 1.64 2015/10/19 11:59:26 mpi Exp $	*/
 /*	$KAME: frag6.c,v 1.40 2002/05/27 21:40:31 itojun Exp $	*/
 
 /*
@@ -183,10 +183,8 @@ frag6_input(struct mbuf **mp, int *offp, int proto)
 
 	rt = rtalloc_mpath(sin6tosa(&dst), &ip6->ip6_src.s6_addr32[0],
 	    m->m_pkthdr.ph_rtableid);
-
 	if (rt != NULL) {
-		if (rt->rt_ifa != NULL)
-			dstifp = ifatoia6(rt->rt_ifa)->ia_ifp;
+		dstifp = ifatoia6(rt->rt_ifa)->ia_ifp;
 		rtfree(rt);
 		rt = NULL;
 	}
-- 
2.20.1