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net: hns3: fix duplicate node in VLAN list

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[ Upstream commit 94391fae82 ]

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: c6075b1934 ("net: hns3: Record VF vlan tables")
Signed-off-by: Guojia Liao <liaoguojia@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Guojia Liao 2021-08-26 19:21:58 +08:00 • committed by Greg Kroah-Hartman
commit e834ca7c79
1 changed files with 5 additions and 1 deletions
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6
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
View file

@ -8792,7 +8792,11 @@ 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)