ipv4, fib: pass LOOPBACK_IFINDEX instead of 0 to flowi4_iif

[sfrench/cifs-2.6.git] / net / ipv4 / ipmr.c

diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 28863570dd60557ca27d8c73c7590b926c7dcf57..d84dc8d4c916e7f50260a2b29df5d79f4adb4c1e 100644 (file)
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -455,7 +455,7 @@ static netdev_tx_t reg_vif_xmit(struct sk_buff *skb, struct net_device *dev)
        struct mr_table *mrt;
        struct flowi4 fl4 = {
                .flowi4_oif     = dev->ifindex,
-               .flowi4_iif     = skb->skb_iif,
+               .flowi4_iif     = skb->skb_iif ? : LOOPBACK_IFINDEX,
                .flowi4_mark    = skb->mark,
        };
        int err;