From 44387d1736c40a74085be354e2b5f37ca0689608 Mon Sep 17 00:00:00 2001 From: Zhengchao Shao Date: Wed, 24 Aug 2022 17:10:03 +0800 Subject: [PATCH] net: sched: remove unnecessary init of qdisc skb head The memory allocated by using kzallloc_node and kcalloc has been cleared. Therefore, the structure members of the new qdisc are 0. So there's no need to explicitly assign a value of 0. Signed-off-by: Zhengchao Shao Signed-off-by: David S. Miller --- include/net/sch_generic.h | 7 ------- net/sched/sch_generic.c | 1 - net/sched/sch_htb.c | 2 -- 3 files changed, 10 deletions(-) diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h index f2958fb5ae08..7dc83400bde4 100644 --- a/include/net/sch_generic.h +++ b/include/net/sch_generic.h @@ -940,13 +940,6 @@ static inline void qdisc_purge_queue(struct Qdisc *sch) qdisc_tree_reduce_backlog(sch, qlen, backlog); } -static inline void qdisc_skb_head_init(struct qdisc_skb_head *qh) -{ - qh->head = NULL; - qh->tail = NULL; - qh->qlen = 0; -} - static inline void __qdisc_enqueue_tail(struct sk_buff *skb, struct qdisc_skb_head *qh) { diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c index 99b697ad2b98..8d25b41d22ec 100644 --- a/net/sched/sch_generic.c +++ b/net/sched/sch_generic.c @@ -941,7 +941,6 @@ struct Qdisc *qdisc_alloc(struct netdev_queue *dev_queue, goto errout; __skb_queue_head_init(&sch->gso_skb); __skb_queue_head_init(&sch->skb_bad_txq); - qdisc_skb_head_init(&sch->q); gnet_stats_basic_sync_init(&sch->bstats); spin_lock_init(&sch->q.lock); diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c index cb5872d22ecf..dbbb276aecb3 100644 --- a/net/sched/sch_htb.c +++ b/net/sched/sch_htb.c @@ -1104,8 +1104,6 @@ static int htb_init(struct Qdisc *sch, struct nlattr *opt, if (err < 0) goto err_free_direct_qdiscs; - qdisc_skb_head_init(&q->direct_queue); - if (tb[TCA_HTB_DIRECT_QLEN]) q->direct_qlen = nla_get_u32(tb[TCA_HTB_DIRECT_QLEN]); else -- 2.11.0