From: Asim Shankar <asimshankar@gmail.com>
Date: Tue, 3 May 2005 21:39:33 +0000 (-0700)
Subject: [PKT_SCHED]: HTB: Drop packet when direct queue is full
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=033d899904792d3501b7dd469495ca9138424ec3;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

[PKT_SCHED]: HTB: Drop packet when direct queue is full

htb_enqueue(): Free skb and return NET_XMIT_DROP if a packet is
destined for the direct_queue but the direct_queue is full. (Before
this: erroneously returned NET_XMIT_SUCCESS even though the packet was
not enqueued)

Signed-off-by: Asim Shankar <asimshankar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index a85935e7d53d..558cc087e602 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -717,6 +717,10 @@ static int htb_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 	if (q->direct_queue.qlen < q->direct_qlen) {
 	    __skb_queue_tail(&q->direct_queue, skb);
 	    q->direct_pkts++;
+	} else {
+	    kfree_skb(skb);
+	    sch->qstats.drops++;
+	    return NET_XMIT_DROP;
 	}
 #ifdef CONFIG_NET_CLS_ACT
     } else if (!cl) {