linux-kernel - Re: [PATCH v2] ARM: LPC32xx: Ethernet driver

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Date:	Tue, 28 Feb 2012 14:49:56 +0100
From:	Roland Stigge <stigge@...com.de>
To:	Arnd Bergmann <arnd@...db.de>
CC:	David Laight <David.Laight@...lab.com>, baruch@...s.co.il,
	alexander.h.duyck@...el.com, ian.campbell@...rix.com,
	netdev@...r.kernel.org, eilong@...adcom.com,
	Kevin Wells <kevin.wells@....com>,
	Wolfram Sang <w.sang@...gutronix.de>,
	jeffrey.t.kirsher@...el.com, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2] ARM: LPC32xx: Ethernet driver

On 02/28/2012 02:41 PM, Arnd Bergmann wrote:
>> 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.
> 
> I think the most common strategy for platform drivers these days is
> 
> 1. use what the hardware provides
> 2. call of_get_mac_address(dev->of_node, ...)
> 3. use random_ether_addr
> 
> in that order. of_get_mac_address just returns NULL when there
> is no device tree or no local-mac-address property, so you can
> put it into the driver right away.

Cool, thanks - will do!

Roland
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