tcp_v4_md5_lookup 1125 include/net/tcp.h extern struct tcp_md5sig_key	*tcp_v4_md5_lookup(struct sock *sk,
tcp_v4_md5_lookup 1754 net/ipv4/tcp_ipv4.c 	.md5_lookup		= tcp_v4_md5_lookup,
tcp_v4_md5_lookup 1781 net/ipv6/tcp_ipv6.c 	.md5_lookup	=	tcp_v4_md5_lookup,