ipv4: Remove bogus checks of rt_gateway being zero.

It can never actually happen.  rt_gateway is either the fully resolved
flow lookup key's destination address, or the non-zero FIB entry gateway
address.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 5 deletions

diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 2b53a1f7abf6..fc213350a6ed 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -724,11 +724,8 @@ static netdev_tx_t ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev
                         goto tx_error;
                 }
 
-                if (skb->protocol == htons(ETH_P_IP)) {
+                if (skb->protocol == htons(ETH_P_IP))
                         rt = skb_rtable(skb);
-                        if ((dst = rt->rt_gateway) == 0)
-                                goto tx_error_icmp;
-                }
 #if IS_ENABLED(CONFIG_IPV6)
                 else if (skb->protocol == htons(ETH_P_IPV6)) {
                         struct neighbour *neigh = dst_get_neighbour_noref(skb_dst(skb));
@@ -910,9 +907,10 @@ static netdev_tx_t ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev
         __IPTUNNEL_XMIT(tstats, &dev->stats);
         return NETDEV_TX_OK;
 
+#if IS_ENABLED(CONFIG_IPV6)
 tx_error_icmp:
         dst_link_failure(skb);
-
+#endif
 tx_error:
         dev->stats.tx_errors++;
         dev_kfree_skb(skb);