From: stigge@antcom.de (Roland Stigge) Date: Tue, 28 Feb 2012 14:32:49 +0100 Subject: [PATCH v2] ARM: LPC32xx: Ethernet driver In-Reply-To: References: Message-ID: <4F4CD781.2090802@antcom.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi, On 02/28/2012 02:11 PM, David Laight wrote: >> Thanks for the note! I actually found out that in many cases, the >> bootloader already initialized the hardware with the target >> MAC address so we can use this one. >> >> For the case that it _isn't_ initialized already, is it the right > thing >> to use a hard coded default MAC address to be replaced by the final > one >> in userspace? (I found such examples in some current micrel/ and amd/ > drivers.) > > Using a fixed address is a very bad idea ... Yes, that's why we previously had a cmdline param for it (but removed it upon request from the netdev maintainer). So if the hardware defaults to 00:00:00:00:00:00, what is the "consistent policy we want to enforce in all drivers"? A link or hint would be sufficient. Thanks in advance, Roland