Hi, On Wed, Feb 24, 2016 at 01:25:51PM +0300, Sergei Shtylyov wrote: > On 2/24/2016 1:52 AM, Aaro Koskinen wrote: > >+ old_mac = fdt_getprop(initial_boot_params, n, "local-mac-address", > >+ &old_len); > >+ if (!old_mac || old_len != 6 || is_valid_ether_addr(old_mac)) > >+ return; > > So if there's no such prop or the length is not 6, you just return? Yes, in that case the network drivers will silently switch to use a random address. This is the same behaviour as with "normal" DT boot. A.