net: ethernet: bgmac: mac address change bug

ndo_set_mac_address() passes struct sockaddr * as 2nd parameter to
bgmac_set_mac_address() but code assumed u8 *.  This caused two bytes
chopping and the wrong mac address was configured.

Signed-off-by: Hari Vyas <hariv@broadcom.com>
Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Fixes: 4e209001b86 ("bgmac: write mac address to hardware in ndo_set_mac_address")
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 1 deletions

diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c
index 415046750bb4..fd66fca00e01 100644
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -1223,12 +1223,16 @@ static netdev_tx_t bgmac_start_xmit(struct sk_buff *skb,
 static int bgmac_set_mac_address(struct net_device *net_dev, void *addr)
 {
         struct bgmac *bgmac = netdev_priv(net_dev);
+        struct sockaddr *sa = addr;
         int ret;
 
         ret = eth_prepare_mac_addr_change(net_dev, addr);
         if (ret < 0)
                 return ret;
-        bgmac_write_mac_address(bgmac, (u8 *)addr);
+
+        ether_addr_copy(net_dev->dev_addr, sa->sa_data);
+        bgmac_write_mac_address(bgmac, net_dev->dev_addr);
+
         eth_commit_mac_addr_change(net_dev, addr);
         return 0;
 }