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net: mvpp2: fallback using h/w and random mac if the dt one isn't valid 

When using a mac address described in the device tree, a check is made
to see if it is valid. When it's not, no fallback is defined. This
patches tries to get the mac address from h/w (or use a random one if
the h/w one isn't valid) when the dt mac address isn't valid.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Antoine Tenart 2017-09-02 11:06:49 +02:00 committed by David S. Miller
parent d2a6e48e52
commit 688cbaf202
1 changed files with 13 additions and 12 deletions
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5
drivers/net/ethernet/marvell/mvpp2.c
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@ -7477,7 +7477,9 @@ static void mvpp2_port_copy_mac_addr(struct net_device *dev, struct mvpp2 *priv,
if (dt_mac_addr && is_valid_ether_addr(dt_mac_addr)) {
*mac_from = "device tree";
ether_addr_copy(dev->dev_addr, dt_mac_addr);
} else {
return;
}
if (priv->hw_version == MVPP21) {
mvpp21_get_mac_address(port, hw_mac_addr);
if (is_valid_ether_addr(hw_mac_addr)) {
@ -7490,7 +7492,6 @@ static void mvpp2_port_copy_mac_addr(struct net_device *dev, struct mvpp2 *priv,
*mac_from = "random";
eth_hw_addr_random(dev);
}
}
/* Ports initialization */
static int mvpp2_port_probe(struct platform_device *pdev,