diff --git a/include/net/route.h b/include/net/route.h
index 2c9fba7..af6cf4b 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -112,7 +112,22 @@
 extern int		__ip_route_output_key(struct net *, struct rtable **, const struct flowi *flp);
 extern int		ip_route_output_key(struct net *, struct rtable **, struct flowi *flp);
 extern int		ip_route_output_flow(struct net *, struct rtable **rp, struct flowi *flp, struct sock *sk, int flags);
-extern int		ip_route_input(struct sk_buff*, __be32 dst, __be32 src, u8 tos, struct net_device *devin);
+
+extern int ip_route_input_common(struct sk_buff *skb, __be32 dst, __be32 src,
+				 u8 tos, struct net_device *devin, bool noref);
+
+static inline int ip_route_input(struct sk_buff *skb, __be32 dst, __be32 src,
+				 u8 tos, struct net_device *devin)
+{
+	return ip_route_input_common(skb, dst, src, tos, devin, false);
+}
+
+static inline int ip_route_input_noref(struct sk_buff *skb, __be32 dst, __be32 src,
+				       u8 tos, struct net_device *devin)
+{
+	return ip_route_input_common(skb, dst, src, tos, devin, true);
+}
+
 extern unsigned short	ip_rt_frag_needed(struct net *net, struct iphdr *iph, unsigned short new_mtu, struct net_device *dev);
 extern void		ip_rt_send_redirect(struct sk_buff *skb);