net: hns3: fix show wrong state when add existing uc mac address

[ Upstream commit 108b3c7810e14892c4a1819b1d268a2c785c087c ]

Currently, if function adds an existing unicast mac address, eventhough
driver will not add this address into hardware, but it will return 0 in
function hclge_add_uc_addr_common(). It will cause the state of this
unicast mac address is ACTIVE in driver, but it should be in TO-ADD state.

To fix this problem, function hclge_add_uc_addr_common() returns -EEXIST
if mac address is existing, and delete two error log to avoid printing
them all the time after this modification.

Fixes: 72110b567479 ("net: hns3: return 0 and print warning when hit duplicate MAC")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 24357e9..0e869f4 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -7581,15 +7581,8 @@ int hclge_add_uc_addr_common(struct hclge_vport *vport,
        }
 
        /* check if we just hit the duplicate */
-       if (!ret) {
-               dev_warn(&hdev->pdev->dev, "VF %u 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",
-               addr);
+       if (!ret)
+               return -EEXIST;
 
        return ret;
 }
@@ -7743,7 +7736,13 @@ static void hclge_sync_vport_mac_list(struct hclge_vport *vport,
                } else {
                        set_bit(HCLGE_VPORT_STATE_MAC_TBL_CHANGE,
                                &vport->state);
-                       break;
+
+                       /* If one unicast mac address is existing in hardware,
+                        * we need to try whether other unicast mac addresses
+                        * are new addresses that can be added.
+                        */
+                       if (ret != -EEXIST)
+                               break;
                }
        }
 }