linux-kernel - [PATCH net-next v2] net: hns3: use list_move_tail instead of list_del/list_add_tail in hclgevf

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Message-ID: <20210609071720.1346684-1-libaokun1@huawei.com>
Date:   Wed, 9 Jun 2021 15:17:20 +0800
From:   Baokun Li <libaokun1@...wei.com>
To:     <linux-kernel@...r.kernel.org>,
        Yisen Zhuang <yisen.zhuang@...wei.com>,
        Salil Mehta <salil.mehta@...wei.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Huazhong Tan <tanhuazhong@...wei.com>,
        Guangbin Huang <huangguangbin2@...wei.com>,
        "Jian Shen" <shenjian15@...wei.com>,
        Yufeng Mo <moyufeng@...wei.com>,
        Guojia Liao <liaoguojia@...wei.com>,
        Jiaran Zhang <zhangjiaran@...wei.com>
CC:     <weiyongjun1@...wei.com>, <yuehaibing@...wei.com>,
        <yangjihong1@...wei.com>, <yukuai3@...wei.com>,
        <libaokun1@...wei.com>, <netdev@...r.kernel.org>,
        <kernel-janitors@...r.kernel.org>, Hulk Robot <hulkci@...wei.com>
Subject: [PATCH net-next v2] net: hns3: use list_move_tail instead of list_del/list_add_tail in hclgevf_main.c

Using list_move_tail() instead of list_del() + list_add_tail() in hclgevf_main.c.

Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Baokun Li <libaokun1@...wei.com>
---
V1->V2:
	CC mailist

 .../hisilicon/hns3/hns3vf/hclgevf_main.c     | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
index f84b3a135c06..52eaf82b7cd7 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -1536,8 +1536,7 @@ static void hclgevf_sync_from_add_list(struct list_head *add_list,
 			kfree(mac_node);
 		} else if (mac_node->state == HCLGEVF_MAC_ACTIVE) {
 			mac_node->state = HCLGEVF_MAC_TO_DEL;
-			list_del(&mac_node->node);
-			list_add_tail(&mac_node->node, mac_list);
+			list_move_tail(&mac_node->node, mac_list);
 		} else {
 			list_del(&mac_node->node);
 			kfree(mac_node);
@@ -1562,8 +1561,7 @@ static void hclgevf_sync_from_del_list(struct list_head *del_list,
 			list_del(&mac_node->node);
 			kfree(mac_node);
 		} else {
-			list_del(&mac_node->node);
-			list_add_tail(&mac_node->node, mac_list);
+			list_move_tail(&mac_node->node, mac_list);
 		}
 	}
 }
@@ -1599,8 +1597,7 @@ static void hclgevf_sync_mac_list(struct hclgevf_dev *hdev,
 	list_for_each_entry_safe(mac_node, tmp, list, node) {
 		switch (mac_node->state) {
 		case HCLGEVF_MAC_TO_DEL:
-			list_del(&mac_node->node);
-			list_add_tail(&mac_node->node, &tmp_del_list);
+			list_move_tail(&mac_node->node, &tmp_del_list);
 			break;
 		case HCLGEVF_MAC_TO_ADD:
 			new_node = kzalloc(sizeof(*new_node), GFP_ATOMIC);