ip_tunnel: Move stats update to iptunnel_xmit()

By moving stats update into iptunnel_xmit(), we can simplify
iptunnel_xmit() usage. With this change there is no need to
call another function (iptunnel_xmit_stats()) to update stats
in tunnel xmit code path.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index ba363ce..fecf7b6 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -1841,9 +1841,10 @@
 
 	skb_set_inner_protocol(skb, htons(ETH_P_TEB));
 
-	return udp_tunnel_xmit_skb(rt, sk, skb, src, dst, tos,
-				   ttl, df, src_port, dst_port, xnet,
-				   !(vxflags & VXLAN_F_UDP_CSUM));
+	udp_tunnel_xmit_skb(rt, sk, skb, src, dst, tos, ttl, df,
+			    src_port, dst_port, xnet,
+			    !(vxflags & VXLAN_F_UDP_CSUM));
+	return 0;
 }
 
 #if IS_ENABLED(CONFIG_IPV6)
@@ -2056,8 +2057,6 @@
 			skb = NULL;
 			goto rt_tx_error;
 		}
-
-		iptunnel_xmit_stats(err, &dev->stats, dev->tstats);
 #if IS_ENABLED(CONFIG_IPV6)
 	} else {
 		struct dst_entry *ndst;