Commit 272f8c3d authored Apr 04, 2019 by Peng Li Committed by Greg Kroah-Hartman Jun 15, 2019

net: hns3: return 0 and print warning when hit duplicate MAC



[ Upstream commit 72110b567479f0282489a9b3747e76d8c67d75f5 ]

When set 2 same MAC to different function of one port, IMP
will return error as the later one may modify the origin one.
This will cause bond fail for 2 VFs of one port.

Driver just print warning and return 0 with this patch, so
if set same MAC address, it will return 0 but do not really
configure HW.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent 5a286ced

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c

+5 −2

Original line number	Diff line number	Diff line
		@@ -4300,8 +4300,11 @@ int hclge_add_uc_addr_common(struct hclge_vport *vport,
		return hclge_add_mac_vlan_tbl(vport, &req, NULL);

		/* check if we just hit the duplicate */
		if (!ret)
		ret = -EINVAL;
		if (!ret) {
		dev_warn(&hdev->pdev->dev, "VF %d mac(%pM) exists\n",
		vport->vport_id, addr);
		return 0;
		}

		dev_err(&hdev->pdev->dev,
		"PF failed to add unicast entry(%pM) in the MAC table\n",