linux-kernel - [PATCH net-next 3/3] net: sched: sch_red: add statistics when calling qdisc_drop() in sch

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Date:   Thu, 25 Aug 2022 11:29:43 +0800
From:   Zhengchao Shao <shaozhengchao@...wei.com>
To:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
        <pabeni@...hat.com>, <jhs@...atatu.com>,
        <xiyou.wangcong@...il.com>, <jiri@...nulli.us>
CC:     <weiyongjun1@...wei.com>, <yuehaibing@...wei.com>,
        <shaozhengchao@...wei.com>
Subject: [PATCH net-next 3/3] net: sched: sch_red: add statistics when calling qdisc_drop() in sch_red

Now, the "other" member in the red_sched_data structure is not used.
According to the description, "other" should be added when calling
qdisc_drop() to discard packets.

Signed-off-by: Zhengchao Shao <shaozhengchao@...wei.com>
---
 net/sched/sch_red.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/sched/sch_red.c b/net/sched/sch_red.c
index 40adf1f07a82..cdf9d8611e41 100644
--- a/net/sched/sch_red.c
+++ b/net/sched/sch_red.c
@@ -141,6 +141,7 @@ static int red_enqueue(struct sk_buff *skb, struct Qdisc *sch,
 	if (!skb)
 		return NET_XMIT_CN | ret;
 
+	q->stats.other++;
 	qdisc_drop(skb, sch, to_free);
 	return NET_XMIT_CN;
 }
-- 
2.17.1