tcp_parse_md5sig_option 400 include/net/tcp.h extern u8 *tcp_parse_md5sig_option(struct tcphdr *th); tcp_parse_md5sig_option 1117 net/ipv4/tcp_ipv4.c hash_location = tcp_parse_md5sig_option(th); tcp_parse_md5sig_option 852 net/ipv6/tcp_ipv6.c hash_location = tcp_parse_md5sig_option(th);