TCP_URG_VALID 417 net/ipv4/tcp.c if (tp->urg_data & TCP_URG_VALID) TCP_URG_VALID 1055 net/ipv4/tcp.c if (tp->urg_data & TCP_URG_VALID) { TCP_URG_VALID 4620 net/ipv4/tcp_input.c tp->urg_data = TCP_URG_VALID | tmp;