dm9601: warn on invalid mac address
Add warnings on invalid mac address to help disclose/debug problems.
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/usb/dm9601.c b/drivers/net/usb/dm9601.c
index 63e97a3..5b67bbf 100644
--- a/drivers/net/usb/dm9601.c
+++ b/drivers/net/usb/dm9601.c
@@ -407,8 +407,11 @@
struct sockaddr *addr = p;
struct usbnet *dev = netdev_priv(net);
- if (!is_valid_ether_addr(addr->sa_data))
+ if (!is_valid_ether_addr(addr->sa_data)) {
+ dev_err(&net->dev, "not setting invalid mac address %pM\n",
+ addr->sa_data);
return -EINVAL;
+ }
memcpy(net->dev_addr, addr->sa_data, net->addr_len);
__dm9601_set_mac_address(dev);
@@ -455,8 +458,12 @@
*/
if (is_valid_ether_addr(mac))
memcpy(dev->net->dev_addr, mac, ETH_ALEN);
- else
+ else {
+ printk(KERN_WARNING
+ "dm9601: No valid MAC address in EEPROM, using %pM\n",
+ dev->net->dev_addr);
__dm9601_set_mac_address(dev);
+ }
/* power up phy */
dm_write_reg(dev, DM_GPR_CTRL, 1);