tag	line	file	source code
NETDEV_UP	232	net/ax25/af_ax25.c	case NETDEV_UP:
NETDEV_UP	232	net/core/dev.c	notifier_call_chain(&netdev_chain, NETDEV_UP, dev);
NETDEV_UP	1073	net/ipv4/ip_output.c	if(event==NETDEV_UP)