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authorLucas Stach <l.stach@pengutronix.de>2013-06-03 00:38:39 +0000
committerDavid S. Miller <davem@davemloft.net>2013-06-04 17:00:32 -0700
commitff5b2fabf53426c15a5f041505687f94d1b2109f (patch)
tree77b814a4b50598ce19b1af1e4e4e70313864024a /drivers/net/ethernet
parente768fb292d362ff2742d843e346a10853bde68be (diff)
downloadvexpress-lsk-ff5b2fabf53426c15a5f041505687f94d1b2109f.tar.gz
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>
Diffstat (limited to 'drivers/net/ethernet')
-rw-r--r--drivers/net/ethernet/freescale/fec_main.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 85a06037b24..a667015be22 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -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 */