114 	struct sock *sk;  in icmpv6_xmit_lock()  local
118 	sk = icmpv6_sk(net);  in icmpv6_xmit_lock()
119 	if (unlikely(!spin_trylock(&sk->sk_lock.slock))) {  in icmpv6_xmit_lock()
127 	return sk;  in icmpv6_xmit_lock()
130 static __inline__ void icmpv6_xmit_unlock(struct sock *sk)  in icmpv6_xmit_unlock()  argument
132 	spin_unlock_bh(&sk->sk_lock.slock);  in icmpv6_xmit_unlock()
173 static bool icmpv6_xrlim_allow(struct sock *sk, u8 type,  in icmpv6_xrlim_allow()  argument
176 	struct net *net = sock_net(sk);  in icmpv6_xrlim_allow()
193 	dst = ip6_route_output(net, sk, fl6);  in icmpv6_xrlim_allow()
239 int icmpv6_push_pending_frames(struct sock *sk, struct flowi6 *fl6,  in icmpv6_push_pending_frames()  argument
246 	skb = skb_peek(&sk->sk_write_queue);  in icmpv6_push_pending_frames()
254 	if (skb_queue_len(&sk->sk_write_queue) == 1) {  in icmpv6_push_pending_frames()
264 		skb_queue_walk(&sk->sk_write_queue, skb) {  in icmpv6_push_pending_frames()
275 	ip6_push_pending_frames(sk);  in icmpv6_push_pending_frames()
326 					     struct sock *sk,  in icmpv6_route_lookup()  argument
333 	err = ip6_dst_lookup(net, sk, &dst, fl6);  in icmpv6_route_lookup()
350 	dst = xfrm_lookup(net, dst, flowi6_to_flowi(fl6), sk, 0);  in icmpv6_route_lookup()
365 	err = ip6_dst_lookup(net, sk, &dst2, &fl2);  in icmpv6_route_lookup()
369 	dst2 = xfrm_lookup(net, dst2, flowi6_to_flowi(&fl2), sk, XFRM_LOOKUP_ICMP);  in icmpv6_route_lookup()
396 	struct sock *sk;  in icmp6_send()  local
483 	sk = icmpv6_xmit_lock(net);  in icmp6_send()
484 	if (!sk)  in icmp6_send()
486 	sk->sk_mark = mark;  in icmp6_send()
487 	np = inet6_sk(sk);  in icmp6_send()
489 	if (!icmpv6_xrlim_allow(sk, type, &fl6))  in icmp6_send()
505 	dst = icmpv6_route_lookup(net, skb, sk, &fl6);  in icmp6_send()
526 	err = ip6_append_data(sk, icmpv6_getfrag, &msg,  in icmp6_send()
533 		ip6_flush_pending_frames(sk);  in icmp6_send()
535 		err = icmpv6_push_pending_frames(sk, &fl6, &tmp_hdr,  in icmp6_send()
542 	icmpv6_xmit_unlock(sk);  in icmp6_send()
556 	struct sock *sk;  in icmpv6_echo_reply()  local
590 	sk = icmpv6_xmit_lock(net);  in icmpv6_echo_reply()
591 	if (!sk)  in icmpv6_echo_reply()
593 	sk->sk_mark = mark;  in icmpv6_echo_reply()
594 	np = inet6_sk(sk);  in icmpv6_echo_reply()
601 	err = ip6_dst_lookup(net, sk, &dst, &fl6);  in icmpv6_echo_reply()
604 	dst = xfrm_lookup(net, dst, flowi6_to_flowi(&fl6), sk, 0);  in icmpv6_echo_reply()
617 	err = ip6_append_data(sk, icmpv6_getfrag, &msg, skb->len + sizeof(struct icmp6hdr),  in icmpv6_echo_reply()
624 		ip6_flush_pending_frames(sk);  in icmpv6_echo_reply()
626 		err = icmpv6_push_pending_frames(sk, &fl6, &tmp_hdr,  in icmpv6_echo_reply()
631 	icmpv6_xmit_unlock(sk);  in icmpv6_echo_reply()
821 void icmpv6_flow_init(struct sock *sk, struct flowi6 *fl6,  in icmpv6_flow_init()  argument
834 	security_sk_classify_flow(sk, flowi6_to_flowi(fl6));  in icmpv6_flow_init()
839 	struct sock *sk;  in icmpv6_sk_init()  local
848 		err = inet_ctl_sock_create(&sk, PF_INET6,  in icmpv6_sk_init()
856 		net->ipv6.icmp_sk[i] = sk;  in icmpv6_sk_init()
861 		sk->sk_sndbuf = 2 * SKB_TRUESIZE(64 * 1024);  in icmpv6_sk_init()