From 03d1da3c050b9d0f9536ccd0965af91ab8e1df63 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Thu, 25 May 2017 22:55:11 +0200 Subject: [PATCH] net: ethernet: ax88796: support generating a random mac address MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Instead of falling back to 00:00:00:00:00:00 generate a random address if none is provided via platform data or from the device's register space. Signed-off-by: Uwe Kleine-König Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- drivers/net/ethernet/8390/ax88796.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/ethernet/8390/ax88796.c b/drivers/net/ethernet/8390/ax88796.c index b0a3b85fc6f8..2f0ee3d7ceb1 100644 --- a/drivers/net/ethernet/8390/ax88796.c +++ b/drivers/net/ethernet/8390/ax88796.c @@ -723,6 +723,12 @@ static int ax_init_dev(struct net_device *dev) ax->plat->mac_addr) memcpy(dev->dev_addr, ax->plat->mac_addr, ETH_ALEN); + if (!is_valid_ether_addr(dev->dev_addr)) { + eth_hw_addr_random(dev); + dev_info(&dev->dev, "Using random MAC address: %pM\n", + dev->dev_addr); + } + ax_reset_8390(dev); ei_local->name = "AX88796";