From: Yunsheng Lin <linyunsheng@huawei.com>
Date: Wed, 9 May 2018 16:24:38 +0000 (+0100)
Subject: net: hns3: Fix for setting mac address when resetting
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=f09555ffe379aeef7fa83c459bbe29e8bce8ec50;p=linux.git

net: hns3: Fix for setting mac address when resetting

When hns3_init_mac_addr is called during reset process, it will
get the mac address from NCL_CONFIG and set it to hardware. If
user has changed the mac address, then the mac address set by
user is lost during resetting.

This patch fixes it by not getting the mac address from NCL_CONFIG
when resetting.

Fixes: 424eb834a9be ("net: hns3: Unified HNS3 {VF|PF} Ethernet Driver for hip08 SoC")
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>
---

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 729bcab947df2..a55c8f515e991 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -3046,13 +3046,13 @@ int hns3_uninit_all_ring(struct hns3_nic_priv *priv)
 }
 
 /* Set mac addr if it is configured. or leave it to the AE driver */
-static void hns3_init_mac_addr(struct net_device *netdev)
+static void hns3_init_mac_addr(struct net_device *netdev, bool init)
 {
 	struct hns3_nic_priv *priv = netdev_priv(netdev);
 	struct hnae3_handle *h = priv->ae_handle;
 	u8 mac_addr_temp[ETH_ALEN];
 
-	if (h->ae_algo->ops->get_mac_addr) {
+	if (h->ae_algo->ops->get_mac_addr && init) {
 		h->ae_algo->ops->get_mac_addr(h, mac_addr_temp);
 		ether_addr_copy(netdev->dev_addr, mac_addr_temp);
 	}
@@ -3106,7 +3106,7 @@ static int hns3_client_init(struct hnae3_handle *handle)
 	handle->kinfo.netdev = netdev;
 	handle->priv = (void *)priv;
 
-	hns3_init_mac_addr(netdev);
+	hns3_init_mac_addr(netdev, true);
 
 	hns3_set_default_feature(netdev);
 
@@ -3353,7 +3353,7 @@ static int hns3_reset_notify_init_enet(struct hnae3_handle *handle)
 	struct hns3_nic_priv *priv = netdev_priv(netdev);
 	int ret;
 
-	hns3_init_mac_addr(netdev);
+	hns3_init_mac_addr(netdev, false);
 	hns3_nic_set_rx_mode(netdev);
 	hns3_recover_hw_addr(netdev);