Something like this:
Subject: [PATCH net-next] sky2: use random address if EEPROM is bad
On some embedded systems the EEPROM does not contain a valid MAC address.
In that case it is better to fallback to a generated mac address and
let init scripts fix the value later.
Reported-by: Liviu Dudau <liviu.du...@arm.com>
Signed-off-by: Stephen Hemminger <step...@networkplumber.org>
--- a/drivers/net/ethernet/marvell/sky2.c 2015-05-21 15:13:03.621126050
-0700
+++ b/drivers/net/ethernet/marvell/sky2.c 2015-08-05 16:12:38.734534467
-0700
@@ -4819,6 +4819,16 @@ static struct net_device *sky2_init_netd
memcpy_fromio(dev->dev_addr, hw->regs + B2_MAC_1 + port * 8,
ETH_ALEN);
+ /* if the address is invalid, use a random value */
+ if (!is_valid_ether_addr(dev->dev_addr)) {
+ struct sockaddr sa = { AF_UNSPEC };
+
+ netdev_warn(dev,
+ "Invalid MAC address defaulting to random\n");
+ sky2_set_mac_address(dev, &sa);
+ dev->addr_assign_type |= NET_ADDR_RANDOM;
+ }
+
return dev;
}
--
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