net: usbnet: update addr_assign_type if appropriate

This module generates a common default address on init,
using eth_random_addr. Set addr_assign_type to let
userspace know the address is random unless it was
overridden by the minidriver.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/usb/usbnet.c

@@ -1629,6 +1629,10 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
 		dev->rx_urb_size = dev->hard_mtu;
 	dev->maxpacket = usb_maxpacket (dev->udev, dev->out, 1);
 
+	/* let userspace know we have a random address */
+	if (ether_addr_equal(net->dev_addr, node_id))
+		net->addr_assign_type = NET_ADDR_RANDOM;
+
 	if ((dev->driver_info->flags & FLAG_WLAN) != 0)
 		SET_NETDEV_DEVTYPE(net, &wlan_type);
 	if ((dev->driver_info->flags & FLAG_WWAN) != 0)