tcp_v4_syn_recv_sock 416 include/net/tcp.h extern struct sock * tcp_v4_syn_recv_sock(struct sock *sk, tcp_v4_syn_recv_sock 1738 net/ipv4/tcp_ipv4.c .syn_recv_sock = tcp_v4_syn_recv_sock, tcp_v4_syn_recv_sock 1242 net/ipv6/tcp_ipv6.c newsk = tcp_v4_syn_recv_sock(sk, skb, req, dst);