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dpaa_eth: Use random MAC address when none is given 

If there is no valid MAC address in the device tree, use a random
MAC address.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Madalin Bucur <madalin.bucur@oss.nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Madalin Bucur 2020-03-05 19:08:58 +02:00 committed by David S. Miller
parent f3353b9902
commit cbb961ca27
1 changed files with 14 additions and 2 deletions
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16
drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
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@ -233,8 +233,20 @@ static int dpaa_netdev_init(struct net_device *net_dev,
net_dev->features |= net_dev->hw_features;
net_dev->vlan_features = net_dev->features;
memcpy(net_dev->perm_addr, mac_addr, net_dev->addr_len);
memcpy(net_dev->dev_addr, mac_addr, net_dev->addr_len);
if (is_valid_ether_addr(mac_addr)) {
memcpy(net_dev->perm_addr, mac_addr, net_dev->addr_len);
memcpy(net_dev->dev_addr, mac_addr, net_dev->addr_len);
} else {
eth_hw_addr_random(net_dev);
err = priv->mac_dev->change_addr(priv->mac_dev->fman_mac,
(enet_addr_t *)net_dev->dev_addr);
if (err) {
dev_err(dev, "Failed to set random MAC address\n");
return -EINVAL;
}
dev_info(dev, "Using random MAC address: %pM\n",
net_dev->dev_addr);
}
net_dev->ethtool_ops = &dpaa_ethtool_ops;