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net: hns3: Add repeat address checking for setting mac address

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Add checking for new mac address. It doesn't need to config
the mac vlan table if it's already in use.

Signed-off-by: Jian Shen <shenjian15@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>
This commit is contained in:
Jian Shen 2018-06-01 17:52:03 +01:00 committed by David S. Miller
parent 3b75c3df59
commit 5ec2a51ef8
1 changed files with 6 additions and 0 deletions
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6
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
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@ -1132,6 +1132,12 @@ static int hns3_nic_net_set_mac_address(struct net_device *netdev, void *p)
if (!mac_addr || !is_valid_ether_addr((const u8 *)mac_addr->sa_data))
return -EADDRNOTAVAIL;
if (ether_addr_equal(netdev->dev_addr, mac_addr->sa_data)) {
netdev_info(netdev, "already using mac address %pM\n",
mac_addr->sa_data);
return 0;
}
ret = h->ae_algo->ops->set_mac_addr(h, mac_addr->sa_data, false);
if (ret) {
netdev_err(netdev, "set_mac_address fail, ret=%d!\n", ret);