tag	line	file	source code
RTMSG_DELROUTE	124	net/ipv4/route.c	ip_netlink_msg(RTMSG_DELROUTE, dst, gtw, mask, rt_flags, metric, r->rt_dev->name);
RTMSG_DELROUTE	355	net/ipv4/route.c	ip_netlink_msg(RTMSG_DELROUTE, dst,gw, mask, flags, metric, rt->rt_dev->name);