4.19-stable review patch. If anyone has any objections, please let me know.
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From: Yunsheng Lin linyunsheng@huawei.com
[ Upstream commit daaa8521760ee4d4e65f309c4c37b3a1e58c9d4e ]
When netdev is down, the stack will delete the vlan from hardware including vlan0, which will cause problem when doing loopback selftest when netdev is down.
This patch fixes it by always preserving vlan 0 in hardware, because vlan 0 is defalut vlan, which should always be in hardware.
Fixes: c39c4d98dc65 ("net: hns3: Add mac loopback selftest support in hns3 driver") Signed-off-by: Yunsheng Lin linyunsheng@huawei.com Signed-off-by: Peng Li lipeng321@huawei.com Signed-off-by: Salil Mehta salil.mehta@huawei.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c @@ -4739,6 +4739,9 @@ static int hclge_set_vlan_filter_hw(stru u16 vport_idx, vport_num = 0; int ret;
+ if (is_kill && !vlan_id) + return 0; + ret = hclge_set_vf_vlan_common(hdev, vport_id, is_kill, vlan_id, 0, proto); if (ret) {