[PATCH 1/2] ARM: kirkwood: proper retain MAC address workaround on DT ethernet

[David Miller]

From: Benjamin Herrenschmidt <benh at kernel.crashing.org>
Date: Tue, 28 May 2013 07:50:06 +1000

> On Mon, 2013-05-27 at 14:47 +0200, Arnd Bergmann wrote:
>> On Monday 27 May 2013 21:50:04 Benjamin Herrenschmidt wrote:
>> > However, that wouldn't help much with the allocation/leak problem,
>> > though at least it would be easier to use. It could also *try* to re-use
>> > the current allocation if the new content is of smaller or equal size.
>> 
>> I thought that dtc tried to aggressively save space by folding identical
>> strings. If you tried to reuse a property that had its contents shared
>> with another one, you would get interesting results I guess.
> 
> It used to be only property names, unless that has changed in recent
> dtc. But that's a good point, we probably want a flag in struct property
> like we have for nodes, indicating whether it comes from the original
> fdt data pool or not.

This is similar to what the "OF_IS_DYNAMIC()" thing on sparc
indicates.