if (gred_wred_mode(t)) 
if (gred_wred_mode(t) && !red_is_idling(&t->wred_set)) 
static struct sk_buff *gred_dequeue(struct Qdisc* sch){	struct sk_buff *skb;	struct gred_sched *t = qdisc_priv(sch);	skb = qdisc_dequeue_head(sch);	if (skb) {		struct gred_sched_data *q;		u16 dp = tc_index_to_dp(skb);		if (dp >= t->DPs || (q = t->tab[dp]) == NULL) {			if (net_ratelimit())				printk(KERN_WARNING "GRED: Unable to relocate "				       "VQ 0x%x after dequeue, screwing up "				       "backlog.\n", tc_index_to_dp(skb));		} else {			q->backlog -= skb->len;			if (!q->backlog && !gred_wred_mode(t))				red_start_of_idle_period(&q->parms);		}		return skb;	}	if (gred_wred_mode(t))		red_start_of_idle_period(&t->wred_set);	return NULL;}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/d8f64e19605d6ce40bc560e7bc919e2e02a79c1b/sch_gred.c/clean/net/sched/sch_gred.c