tcp_close 389 include/net/tcp.h void tcp_close(struct sock *sk, long timeout); tcp_close 2519 net/ipv4/tcp.c EXPORT_SYMBOL(tcp_close); tcp_close 2575 net/ipv4/tcp_ipv4.c .close = tcp_close, tcp_close 2009 net/ipv6/tcp_ipv6.c .close = tcp_close,