1 files changed, 5 insertions, 1 deletions

diff --git a/include/net/route.h b/include/net/route.h
index 60d611dc5cee..c29ef2733f2d 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -277,7 +277,11 @@ static inline struct rtable *ip_route_newports(struct flowi4 *fl4, struct rtable
 
 static inline int inet_iif(const struct sk_buff *skb)
 {
-        return skb_rtable(skb)->rt_iif;
+        int iif = skb_rtable(skb)->rt_iif;
+
+        if (iif)
+                return iif;
+        return skb->skb_iif;
 }
 
 extern int sysctl_ip_default_ttl;