Function cisco_notify

freebsd/netgraph/ng_cisco.c:633–645

* Send linkstate to upstream node. */

 * Send linkstate to upstream node.
 */
static void
cisco_notify(sc_p sc, uint32_t cmd)
{
	struct ng_mesg *msg;
	int dummy_error = 0;

	if (sc->inet.hook == NULL) /* nothing to notify */
		return;
                
	NG_MKMESSAGE(msg, NGM_FLOW_COOKIE, cmd, 0, M_NOWAIT);
	if (msg != NULL)
		NG_SEND_MSG_HOOK(dummy_error, sc->node, msg, sc->inet.hook, 0);
}