tag	line	file	source code
send_fin	2269	net/ipv4/tcp.c	int send_fin=0;
send_fin	2277	net/ipv4/tcp.c	send_fin=1;
send_fin	2290	net/ipv4/tcp.c	send_fin=1;
send_fin	2313	net/ipv4/tcp.c	return send_fin;