net: xilinx: emaclite: Fallback to random MAC address.

If the address configured in the device tree is invalid, the
driver will fallback to using a random address from the locally
administered range.

Signed-off-by: Daniel Romell <daro@hms.se>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
index 3cee84a..93dc10b 100644 (file)
--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
@@ -1131,11 +1131,13 @@ static int xemaclite_of_probe(struct platform_device *ofdev)
        lp->rx_ping_pong = get_bool(ofdev, "xlnx,rx-ping-pong");
        mac_address = of_get_mac_address(ofdev->dev.of_node);
 
-       if (mac_address)
+       if (mac_address) {
                /* Set the MAC address. */
                memcpy(ndev->dev_addr, mac_address, ETH_ALEN);
-       else
-               dev_warn(dev, "No MAC address found\n");
+       } else {
+               dev_warn(dev, "No MAC address found, using random\n");
+               eth_hw_addr_random(ndev);
+       }
 
        /* Clear the Tx CSR's in case this is a restart */
        __raw_writel(0, lp->base_addr + XEL_TSR_OFFSET);