send_synack 1997 include/net/tcp.h int (*send_synack)(const struct sock *sk, struct dst_entry *dst, send_synack 6666 net/ipv4/tcp_input.c af_ops->send_synack(fastopen_sk, dst, &fl, req, send_synack 6683 net/ipv4/tcp_input.c af_ops->send_synack(sk, dst, &fl, req, &foc, send_synack 1390 net/ipv4/tcp_ipv4.c .send_synack = tcp_v4_send_synack, send_synack 3854 net/ipv4/tcp_output.c res = af_ops->send_synack(sk, NULL, &fl, req, NULL, TCP_SYNACK_NORMAL); send_synack 802 net/ipv6/tcp_ipv6.c .send_synack = tcp_v6_send_synack,