From: Yang Yingliang <yangyingliang@huawei.com>
Date: Fri, 9 May 2014 08:49:05 +0000 (+0800)
Subject: sch_hhf: fix comparison of qlen and limit
X-Git-Tag: v3.16-rc1~27^2~247
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=b2ce49e7375ff5b9b133c474875dfbd97ef00ef7;p=linux.git

sch_hhf: fix comparison of qlen and limit

When I use the following command, eth0 cannot send any packets.
 #tc qdisc add dev eth0 root handle 1: hhf limit 1

Because qlen need be smaller than limit, all packets were dropped.
Fix this by qlen *<=* limit.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/sched/sch_hhf.c b/net/sched/sch_hhf.c
index 6e957c3b9854..6aab8619bbb0 100644
--- a/net/sched/sch_hhf.c
+++ b/net/sched/sch_hhf.c
@@ -414,7 +414,7 @@ static int hhf_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 		}
 		bucket->deficit = weight * q->quantum;
 	}
-	if (++sch->q.qlen < sch->limit)
+	if (++sch->q.qlen <= sch->limit)
 		return NET_XMIT_SUCCESS;
 
 	q->drop_overlimit++;