net/core/neighbour.c

1626 	long sched_next = 0;
1633 		long tdif = NEIGH_CB(skb)->sched_next - now;
1650 		} else if (!sched_next || tdif < sched_next)
1651 			sched_next = tdif;
1654 	if (sched_next)
1655 		mod_timer(&tbl->proxy_timer, jiffies + sched_next);
1673 	unsigned long sched_next = neigh_proxy_delay(p);
1680 	NEIGH_CB(skb)->sched_next = sched_next;
1685 		if (time_before(tbl->proxy_timer.expires, sched_next))
1686 			sched_next = tbl->proxy_timer.expires;
1692 	mod_timer(&tbl->proxy_timer, sched_next);