361 	struct inet_connection_sock *icsk;  in tcp_v4_err()  local
407 	icsk = inet_csk(sk);  in tcp_v4_err()
455 		if (seq != tp->snd_una  || !icsk->icsk_retransmits ||  in tcp_v4_err()
456 		    !icsk->icsk_backoff || fastopen)  in tcp_v4_err()
462 		icsk->icsk_backoff--;  in tcp_v4_err()
463 		icsk->icsk_rto = tp->srtt_us ? __tcp_set_rto(tp) :  in tcp_v4_err()
465 		icsk->icsk_rto = inet_csk_rto_backoff(icsk, TCP_RTO_MAX);  in tcp_v4_err()
470 		remaining = icsk->icsk_rto -  in tcp_v4_err()
471 			    min(icsk->icsk_rto,  in tcp_v4_err()
1761 	struct inet_connection_sock *icsk = inet_csk(sk);  in tcp_v4_init_sock()  local
1765 	icsk->icsk_af_ops = &ipv4_specific;  in tcp_v4_init_sock()
1824 	struct inet_connection_sock *icsk;  in listening_get_next()  local
1845 		icsk = inet_csk(st->syn_wait_sk);  in listening_get_next()
1855 			if (++st->sbucket >= icsk->icsk_accept_queue.listen_opt->nr_table_entries)  in listening_get_next()
1858 			req = icsk->icsk_accept_queue.listen_opt->syn_table[st->sbucket];  in listening_get_next()
1862 		spin_unlock_bh(&icsk->icsk_accept_queue.syn_wait_lock);  in listening_get_next()
1864 		icsk = inet_csk(sk);  in listening_get_next()
1865 		spin_lock_bh(&icsk->icsk_accept_queue.syn_wait_lock);  in listening_get_next()
1866 		if (reqsk_queue_len(&icsk->icsk_accept_queue))  in listening_get_next()
1868 		spin_unlock_bh(&icsk->icsk_accept_queue.syn_wait_lock);  in listening_get_next()
1879 		icsk = inet_csk(sk);  in listening_get_next()
1880 		spin_lock_bh(&icsk->icsk_accept_queue.syn_wait_lock);  in listening_get_next()
1881 		if (reqsk_queue_len(&icsk->icsk_accept_queue)) {  in listening_get_next()
1889 		spin_unlock_bh(&icsk->icsk_accept_queue.syn_wait_lock);  in listening_get_next()
2107 			struct inet_connection_sock *icsk = inet_csk(st->syn_wait_sk);  in tcp_seq_stop()  local
2108 			spin_unlock_bh(&icsk->icsk_accept_queue.syn_wait_lock);  in tcp_seq_stop()
2192 	const struct inet_connection_sock *icsk = inet_csk(sk);  in get_tcp4_sock()  local
2194 	struct fastopen_queue *fastopenq = icsk->icsk_accept_queue.fastopenq;  in get_tcp4_sock()
2201 	if (icsk->icsk_pending == ICSK_TIME_RETRANS ||  in get_tcp4_sock()
2202 	    icsk->icsk_pending == ICSK_TIME_EARLY_RETRANS ||  in get_tcp4_sock()
2203 	    icsk->icsk_pending == ICSK_TIME_LOSS_PROBE) {  in get_tcp4_sock()
2205 		timer_expires	= icsk->icsk_timeout;  in get_tcp4_sock()
2206 	} else if (icsk->icsk_pending == ICSK_TIME_PROBE0) {  in get_tcp4_sock()
2208 		timer_expires	= icsk->icsk_timeout;  in get_tcp4_sock()
2232 		icsk->icsk_retransmits,  in get_tcp4_sock()
2234 		icsk->icsk_probes_out,  in get_tcp4_sock()
2237 		jiffies_to_clock_t(icsk->icsk_rto),  in get_tcp4_sock()
2238 		jiffies_to_clock_t(icsk->icsk_ack.ato),  in get_tcp4_sock()
2239 		(icsk->icsk_ack.quick << 1) | icsk->icsk_ack.pingpong,  in get_tcp4_sock()