> > + /* Get mac-address from nvmem. */ > > + ret = spl2sw_nvmem_get_mac_address(&pdev->dev, port_np, mac_addr); > > + if (ret) { > > + dev_info(&pdev->dev, "Generate a random mac address!\n"); > > + > > + /* Generate a mac address using OUI of Sunplus Technology > > + * and random controller number. > > + */ > > + mac_addr[0] = 0xfc; /* OUI of Sunplus: fc:4b:bc */ > > + mac_addr[1] = 0x4b; > > + mac_addr[2] = 0xbc; > > + mac_addr[3] = get_random_int() % 256; > > + mac_addr[4] = get_random_int() % 256; > > + mac_addr[5] = get_random_int() % 256; > > I don't think you can do that. Either you use your OUI and assign the > address at manufacture or you must use a locally administered address. > And if locally administered address is used it better be completely > random to lower the probability of collision to absolute minimum. I commented about that in an earlier version of these patches. We probably need a quote from the 802.1 or 802.3 which says this is O.K. Andrew