1 files changed, 6 insertions, 2 deletions

diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c
index 7ef87f9eb675..b1d00f8e09f8 100644
--- a/net/sched/sch_sfq.c
+++ b/net/sched/sch_sfq.c
@@ -361,7 +361,7 @@ sfq_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 {
         struct sfq_sched_data *q = qdisc_priv(sch);
         unsigned int hash;
-        sfq_index x;
+        sfq_index x, qlen;
         struct sfq_slot *slot;
         int uninitialized_var(ret);
 
@@ -405,8 +405,12 @@ sfq_enqueue(struct sk_buff *skb, struct Qdisc *sch)
         if (++sch->q.qlen <= q->limit)
                 return NET_XMIT_SUCCESS;
 
+        qlen = slot->qlen;
         sfq_drop(sch);
-        return NET_XMIT_CN;
+        /* Return Congestion Notification only if we dropped a packet
+         * from this flow.
+         */
+        return (qlen != slot->qlen) ? NET_XMIT_CN : NET_XMIT_SUCCESS;
 }
 
 static struct sk_buff *