if (PSCHED_TLESS(cb->time_to_send, ncb->time_to_send)) 
if (!PSCHED_TLESS(ncb->time_to_send, cb->time_to_send)) 
static int tfifo_enqueue(struct sk_buff *nskb, struct Qdisc *sch){	struct fifo_sched_data *q = qdisc_priv(sch);	struct sk_buff_head *list = &sch->q;	const struct netem_skb_cb *ncb		= (const struct netem_skb_cb *)nskb->cb;	struct sk_buff *skb;	if (likely(skb_queue_len(list) < q->limit)) {		skb_queue_reverse_walk(list, skb) {			const struct netem_skb_cb *cb				= (const struct netem_skb_cb *)skb->cb;			if (PSCHED_TLESS(cb->time_to_send, ncb->time_to_send))				break;		}		__skb_queue_after(list, skb, nskb);		sch->qstats.backlog += nskb->len;		sch->bstats.bytes += nskb->len;		sch->bstats.packets++;		return NET_XMIT_SUCCESS;	}	return qdisc_drop(nskb, sch);}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/aa8751667dcd757dd9a711b51140adf181501c44/sch_netem.c/buggy/net/sched/sch_netem.c