Hi, On Fri, Apr 17, 2015 at 08:43:55PM +0200, Paul Kocialkowski wrote: > static int __init init_machine_late(void) > { > +#ifdef CONFIG_OF > + unsigned long dt_root; > + int size; > + > + dt_root = of_get_flat_dt_root(); > + > + /* Scan for serial number */ > + system_serial = of_get_flat_dt_prop(dt_root, "serial-number", &size); I was really hoping for: if (of_property_read_string(of_root, "serial-number", &system_serial)) system_serial = NULL; here. I can't see a reason to use the flattened DT at this point as we've already parsed it. I'd also put this after the call to machine_desc->init_late(). Thanks. -- FTTC broadband for 0.8mile line: currently at 10.5Mbps down 400kbps up according to speedtest.net. -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html