ip-tunnel: Use API to access tunnel metadata options.

Currently tun-info options pointer is used in few cases to
pass options around. But tunnel options can be accessed using
ip_tunnel_info_opts() API without using the pointer. Following
patch removes the redundant pointer and consistently make use
of API.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Reviewed-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/openvswitch/vport-vxlan.c b/net/openvswitch/vport-vxlan.c
index ed7b23f..c11413d 100644
--- a/net/openvswitch/vport-vxlan.c
+++ b/net/openvswitch/vport-vxlan.c
@@ -147,7 +147,7 @@
 }
 
 static int vxlan_get_egress_tun_info(struct vport *vport, struct sk_buff *skb,
-				     struct ip_tunnel_info *egress_tun_info)
+				     struct dp_upcall_info *upcall)
 {
 	struct vxlan_dev *vxlan = netdev_priv(vport->dev);
 	struct net *net = ovs_dp_get_net(vport->dp);
@@ -159,7 +159,7 @@
 	inet_get_local_port_range(net, &port_min, &port_max);
 	src_port = udp_flow_src_port(net, skb, 0, 0, true);
 
-	return ovs_tunnel_get_egress_info(egress_tun_info, net,
+	return ovs_tunnel_get_egress_info(upcall, net,
 					  skb, IPPROTO_UDP,
 					  src_port, dst_port);
 }