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From:   Xue Chaojing <xuechaojing@huawei.com>
To:     <davem@davemloft.net>
CC:     <linux-kernel@vger.kernel.org>, <xuechaojing@huawei.com>,
        <netdev@vger.kernel.org>, <wulike1@huawei.com>,
        <chiqijun@huawei.com>, <fy.wang@huawei.com>, <tony.qu@huawei.com>,
        <luoshaokai@huawei.com>
Subject: [PATCH 1/3] net-next/hinic:fix a bug in set mac address
Date:   Thu, 15 Nov 2018 20:05:46 +0000
Message-ID: <20181115200548.5326-1-xuechaojing@huawei.com>
MIME-Version: 1.0
Content-Type: text/plain
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

In add_mac_addr(), if the MAC address is a muliticast address,
it will not be set, which causes the network card fail to receive
the multicast packet. This patch fixes this bug.

Signed-off-by: Xue Chaojing <xuechaojing@huawei.com>
---
 drivers/net/ethernet/huawei/hinic/hinic_main.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/huawei/hinic/hinic_main.c b/drivers/net/ethernet/huawei/hinic/hinic_main.c
index fdf2bdb6b0d0..cefd441bb117 100644
--- a/drivers/net/ethernet/huawei/hinic/hinic_main.c
+++ b/drivers/net/ethernet/huawei/hinic/hinic_main.c
@@ -600,9 +600,6 @@ static int add_mac_addr(struct net_device *netdev, const u8 *addr)
 	u16 vid = 0;
 	int err;
 
-	if (!is_valid_ether_addr(addr))
-		return -EADDRNOTAVAIL;
-
 	netif_info(nic_dev, drv, netdev, "set mac addr = %02x %02x %02x %02x %02x %02x\n",
 		   addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
 
@@ -733,6 +730,9 @@ static void set_rx_mode(struct work_struct *work)
 
 	__dev_uc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr);
 	__dev_mc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr);
+
+	netdev_for_each_mc_addr(ha, nic_dev->netdev)
+		add_mac_addr(nic_dev->netdev, ha->addr);
 }
 
 static void hinic_set_rx_mode(struct net_device *netdev)
-- 
2.17.1