linux-kernel - Re: [PATCH v3] of: Create asm-generic/of.h and provide default of_node_to

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Message-ID: <AANLkTi=Kw78W0zuuQ0vzO7rXXVkTDf0D5w8n44hV_FWt@mail.gmail.com>
Date:	Mon, 26 Jul 2010 19:57:17 -0600
From:	Grant Likely <grant.likely@...retlab.ca>
To:	David Miller <davem@...emloft.net>
Cc:	sam@...nborg.org, sfr@...b.auug.org.au, monstr@...str.eu,
	microblaze-uclinux@...e.uq.edu.au,
	devicetree-discuss@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
	linuxppc-dev@...abs.org, benh@...nel.crashing.org,
	sparclinux@...r.kernel.org
Subject: Re: [PATCH v3] of: Create asm-generic/of.h and provide default 
	of_node_to_nid()

On Mon, Jul 26, 2010 at 7:38 PM, David Miller <davem@...emloft.net> wrote:
> From: Grant Likely <grant.likely@...retlab.ca>
> Date: Mon, 26 Jul 2010 16:51:01 -0600
>
>> Indeed.  I looked at it briefly, but it wasn't immediately clear what
>> the impact would be to switch powerpc over to -1, and it looked to me
>> like sparc depends on -1 to signify no node association.
>
> Kernel wide, NUMA interfaces tend to take "-1" to mean "any node."
>
> I had looked over the powerpc cases, and besides 1 or 2 strange
> locations the powerpc call sites were ready to handle -1.

Okay, well let me rework the patch to make -1 the default and let
powerpc override it.  A follow-on patch can fix up the powerpc usage
of 0.

g.
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