On 30.06.2019 18:03, Karsten Wiborg wrote:

Hi Andrew,

On 30/06/2019 16:55, Andrew Lunn wrote:

quoted

Hi Karsten

What MAC address do you get with the vendor driver? Is it the same MAC
address every time you reboot, or does it look random.

The BIOS is expected to program the MAC address into the hardware. It
could be that the vendor driver is checking if the MAC address is
valid, and if not, picking a random MAC address. The mainline driver
does not do this.

I programmed a static DHCP-entry on my local DHCP-server so I would
notice if the MAC address changes. Just turned the computer back on and
received the intended IP address, so the MAC address seems to stay the
same with the vendor driver.

Vendor driver uses this code, do you see the related messages in syslog?

        if (!is_valid_ether_addr(mac_addr)) {
                netif_err(tp, probe, dev, "Invalid ether addr %pM\n",
                          mac_addr);
                eth_hw_addr_random(dev);
                ether_addr_copy(mac_addr, dev->dev_addr);
                netif_info(tp, probe, dev, "Random ether addr %pM\n",
                           mac_addr);
                tp->random_mac = 1;
        }

The vendor part of my MAC is 6e:69:73 which is interesting because
according to some Vendor-Lookup-pages the vendor is unknown.

Regards,
Karsten