linux-kernel - Re: [PATCH linux-next] powerpc/powermac: Add missing of_node

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Date:	Sun, 7 Dec 2008 16:43:33 +1100
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Paul Mackerras <paulus@...ba.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Nicolas Palix <npalix@...u.dk>,
	kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org,
	linuxppc-dev@...abs.org, Julia Lawall <julia@...u.dk>
Subject: Re: [PATCH linux-next] powerpc/powermac: Add missing of_node_put

Hi Paul,

On Sun, 7 Dec 2008 13:31:00 +1100 Paul Mackerras <paulus@...ba.org> wrote:
>
> I'm really in two minds about applying any of the of_node_put patches
> that only affect powermacs.  The reference counts only matter on
> platforms where we update the OF device tree at runtime, which is
> currently only IBM pSeries machines.  Since we don't have any hotplug
> on powermacs, and never will have, the OF device tree is completely
> static and we don't actually need refcounts on the nodes at all, so
> who cares if they're a bit higher than they might be?
> 
> In particular, the VIA whose node we're looking for here is built-in
> on the motherboard, and there can never be more than one, and it can
> never be removed.

I my mind it is about consistent use of the API and good examples for
people to copy.  Also, in about a year you will be presented with the
same set of patches when a new pair of eyes looks at the same code and
notices the discrepancy ...

-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au
http://www.canb.auug.org.au/~sfr/

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