113 	struct sock *sk;  in icmpv6_xmit_lock()  local
117 	sk = icmpv6_sk(net);  in icmpv6_xmit_lock()
118 	if (unlikely(!spin_trylock(&sk->sk_lock.slock))) {  in icmpv6_xmit_lock()
126 	return sk;  in icmpv6_xmit_lock()
129 static __inline__ void icmpv6_xmit_unlock(struct sock *sk)  in icmpv6_xmit_unlock()  argument
131 	spin_unlock_bh(&sk->sk_lock.slock);  in icmpv6_xmit_unlock()
172 static bool icmpv6_xrlim_allow(struct sock *sk, u8 type,  in icmpv6_xrlim_allow()  argument
175 	struct net *net = sock_net(sk);  in icmpv6_xrlim_allow()
192 	dst = ip6_route_output(net, sk, fl6);  in icmpv6_xrlim_allow()
238 int icmpv6_push_pending_frames(struct sock *sk, struct flowi6 *fl6,  in icmpv6_push_pending_frames()  argument
245 	skb = skb_peek(&sk->sk_write_queue);  in icmpv6_push_pending_frames()
253 	if (skb_queue_len(&sk->sk_write_queue) == 1) {  in icmpv6_push_pending_frames()
263 		skb_queue_walk(&sk->sk_write_queue, skb) {  in icmpv6_push_pending_frames()
274 	ip6_push_pending_frames(sk);  in icmpv6_push_pending_frames()
325 					     struct sock *sk,  in icmpv6_route_lookup()  argument
332 	err = ip6_dst_lookup(sk, &dst, fl6);  in icmpv6_route_lookup()
349 	dst = xfrm_lookup(net, dst, flowi6_to_flowi(fl6), sk, 0);  in icmpv6_route_lookup()
364 	err = ip6_dst_lookup(sk, &dst2, &fl2);  in icmpv6_route_lookup()
368 	dst2 = xfrm_lookup(net, dst2, flowi6_to_flowi(&fl2), sk, XFRM_LOOKUP_ICMP);  in icmpv6_route_lookup()
395 	struct sock *sk;  in icmp6_send()  local
480 	sk = icmpv6_xmit_lock(net);  in icmp6_send()
481 	if (!sk)  in icmp6_send()
483 	sk->sk_mark = mark;  in icmp6_send()
484 	np = inet6_sk(sk);  in icmp6_send()
486 	if (!icmpv6_xrlim_allow(sk, type, &fl6))  in icmp6_send()
499 	dst = icmpv6_route_lookup(net, skb, sk, &fl6);  in icmp6_send()
519 	err = ip6_append_data(sk, icmpv6_getfrag, &msg,  in icmp6_send()
526 		ip6_flush_pending_frames(sk);  in icmp6_send()
528 		err = icmpv6_push_pending_frames(sk, &fl6, &tmp_hdr,  in icmp6_send()
535 	icmpv6_xmit_unlock(sk);  in icmp6_send()
549 	struct sock *sk;  in icmpv6_echo_reply()  local
583 	sk = icmpv6_xmit_lock(net);  in icmpv6_echo_reply()
584 	if (!sk)  in icmpv6_echo_reply()
586 	sk->sk_mark = mark;  in icmpv6_echo_reply()
587 	np = inet6_sk(sk);  in icmpv6_echo_reply()
594 	err = ip6_dst_lookup(sk, &dst, &fl6);  in icmpv6_echo_reply()
597 	dst = xfrm_lookup(net, dst, flowi6_to_flowi(&fl6), sk, 0);  in icmpv6_echo_reply()
610 	err = ip6_append_data(sk, icmpv6_getfrag, &msg, skb->len + sizeof(struct icmp6hdr),  in icmpv6_echo_reply()
617 		ip6_flush_pending_frames(sk);  in icmpv6_echo_reply()
619 		err = icmpv6_push_pending_frames(sk, &fl6, &tmp_hdr,  in icmpv6_echo_reply()
624 	icmpv6_xmit_unlock(sk);  in icmpv6_echo_reply()
813 void icmpv6_flow_init(struct sock *sk, struct flowi6 *fl6,  in icmpv6_flow_init()  argument
826 	security_sk_classify_flow(sk, flowi6_to_flowi(fl6));  in icmpv6_flow_init()
836 	struct sock *sk;  in icmpv6_sk_init()  local
845 		err = inet_ctl_sock_create(&sk, PF_INET6,  in icmpv6_sk_init()
853 		net->ipv6.icmp_sk[i] = sk;  in icmpv6_sk_init()
861 		lockdep_set_class(&sk->sk_dst_lock,  in icmpv6_sk_init()
867 		sk->sk_sndbuf = 2 * SKB_TRUESIZE(64 * 1024);  in icmpv6_sk_init()