ip6_xmit
int ip6_xmit(const struct sock *sk, struct sk_buff *skb, struct flowi6 *fl6,
res = ip6_xmit(sk, skb, fl6, sk->sk_mark, rcu_dereference(np->opt),
EXPORT_SYMBOL(ip6_xmit);
err = ip6_xmit(sk, skb, fl6, skb->mark ? : READ_ONCE(sk->sk_mark),
ip6_xmit(ctl_sk, buff, &fl6, fl6.flowi6_mark, NULL,
res = ip6_xmit(sk, skb, fl6, sk->sk_mark,
err = ip6_xmit(sk, skb, &fl6, skb->mark, NULL, 0, 0);