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/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
index 0f6e9ee..c7bd72e 100644
--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -656,7 +656,6 @@
 	struct rtable *rt;		/* Route to the other host */
 	unsigned int max_headroom;	/* The extra header space needed */
 	__be32 dst;
-	int err;
 	bool connected;
 
 	inner_iph = (const struct iphdr *)skb_inner_network_header(skb);
@@ -794,10 +793,8 @@
 		return;
 	}
 
-	err = iptunnel_xmit(NULL, rt, skb, fl4.saddr, fl4.daddr, protocol,
-			    tos, ttl, df, !net_eq(tunnel->net, dev_net(dev)));
-	iptunnel_xmit_stats(err, &dev->stats, dev->tstats);
-
+	iptunnel_xmit(NULL, rt, skb, fl4.saddr, fl4.daddr, protocol, tos, ttl,
+		      df, !net_eq(tunnel->net, dev_net(dev)));
 	return;
 
 #if IS_ENABLED(CONFIG_IPV6)