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[net,4/7] net: hns3: fix duplicate node in VLAN list

Message ID 1629976921-43438-5-git-send-email-huangguangbin2@huawei.com (mailing list archive)
State Accepted
Commit 94391fae82f71c98ecc7716a32611fcca73c74eb
Delegated to: Netdev Maintainers
Headers show
Series net: hns3: add some fixes for -net | expand

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netdev/cc_maintainers fail 2 blamed authors not CCed: liuzhongzhu@huawei.com tanhuazhong@huawei.com; 7 maintainers not CCed: moyufeng@huawei.com tanhuazhong@huawei.com salil.mehta@huawei.com shenjian15@huawei.com yisen.zhuang@huawei.com liuzhongzhu@huawei.com zhangjiaran@huawei.com
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Commit Message

Guangbin Huang Aug. 26, 2021, 11:21 a.m. UTC 
From: Guojia Liao <liaoguojia@huawei.com>

VLAN list should not be added duplicate VLAN node, otherwise it would
cause "add failed" when restore VLAN from VLAN list, so this patch adds
VLAN ID check before adding node into VLAN list.

Fixes: c6075b193462 ("net: hns3: Record VF vlan tables")
Signed-off-by: Guojia Liao <liaoguojia@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 78408136f253..1d0fa966e55a 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -10073,7 +10073,11 @@  static int hclge_init_vlan_config(struct hclge_dev *hdev)
 static void hclge_add_vport_vlan_table(struct hclge_vport *vport, u16 vlan_id,
 				       bool writen_to_tbl)
 {
-	struct hclge_vport_vlan_cfg *vlan;
+	struct hclge_vport_vlan_cfg *vlan, *tmp;
+
+	list_for_each_entry_safe(vlan, tmp, &vport->vlan_list, node)
+		if (vlan->vlan_id == vlan_id)
+			return;
 
 	vlan = kzalloc(sizeof(*vlan), GFP_KERNEL);
 	if (!vlan)