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net: fec: add fallback to random MAC address 

If no valid MAC address could be obtained from the hardware,
fall back to a randomly generated one.

Signed-off-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Lucas Stach 2013-06-03 00:38:39 +00:00 committed by David S. Miller
parent e768fb292d
commit ff5b2fabf5
1 changed files with 12 additions and 0 deletions
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12
drivers/net/ethernet/freescale/fec_main.c
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@ -1038,6 +1038,18 @@ static void fec_get_mac(struct net_device *ndev)
iap = &tmpaddr[0];
}
/*
* 5) random mac address
*/
if (!is_valid_ether_addr(iap)) {
/* Report it and use a random ethernet address instead */
netdev_err(ndev, "Invalid MAC address: %pM\n", iap);
eth_hw_addr_random(ndev);
netdev_info(ndev, "Using random MAC address: %pM\n",
ndev->dev_addr);
return;
}
memcpy(ndev->dev_addr, iap, ETH_ALEN);
/* Adjust MAC if using macaddr */