dst: Pass net into dst->output

The network namespace is already passed into dst_output pass it into
dst->output lwt->output and friends.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/lwtunnel.c b/net/core/lwtunnel.c
index dfb1a9c..299cfc2 100644
--- a/net/core/lwtunnel.c
+++ b/net/core/lwtunnel.c
@@ -180,7 +180,7 @@
 }
 EXPORT_SYMBOL(lwtunnel_cmp_encap);
 
-int lwtunnel_output(struct sock *sk, struct sk_buff *skb)
+int lwtunnel_output(struct net *net, struct sock *sk, struct sk_buff *skb)
 {
 	struct dst_entry *dst = skb_dst(skb);
 	const struct lwtunnel_encap_ops *ops;
@@ -199,7 +199,7 @@
 	rcu_read_lock();
 	ops = rcu_dereference(lwtun_encaps[lwtstate->type]);
 	if (likely(ops && ops->output))
-		ret = ops->output(sk, skb);
+		ret = ops->output(net, sk, skb);
 	rcu_read_unlock();
 
 	if (ret == -EOPNOTSUPP)