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>
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@ -1038,6 +1038,18 @@ static void fec_get_mac(struct net_device *ndev)
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iap = &tmpaddr[0];
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}
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/*
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* 5) random mac address
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*/
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if (!is_valid_ether_addr(iap)) {
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/* Report it and use a random ethernet address instead */
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netdev_err(ndev, "Invalid MAC address: %pM\n", iap);
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eth_hw_addr_random(ndev);
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netdev_info(ndev, "Using random MAC address: %pM\n",
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ndev->dev_addr);
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return;
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}
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memcpy(ndev->dev_addr, iap, ETH_ALEN);
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/* Adjust MAC if using macaddr */
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