TCPF_LAST_ACK      93 net/core/stream.c 	       (TCPF_FIN_WAIT1 | TCPF_CLOSING | TCPF_LAST_ACK);
TCPF_LAST_ACK    2587 net/ipv4/tcp.c 		    (1 << old_state) & (TCPF_CLOSING | TCPF_LAST_ACK))) {
TCPF_LAST_ACK    5412 net/ipv4/tcp_input.c 			(1 << sk->sk_state) & (TCPF_CLOSE_WAIT | TCPF_LAST_ACK |
TCPF_LAST_ACK     794 net/ipv4/tcp_output.c 	     TCPF_CLOSE_WAIT  | TCPF_LAST_ACK)) {