linux-kernel - Re: [PATCH 1/3] of: Add of_match

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Date:	Mon, 18 Aug 2014 13:10:13 +0300
From:	Tuomas Tynkkynen <ttynkkynen@...dia.com>
To:	Grant Likely <grant.likely@...aro.org>
CC:	Rob Herring <robh+dt@...nel.org>,
	Stephen Warren <swarren@...dotorg.org>,
	Thierry Reding <thierry.reding@...il.com>,
	<linux-pm@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-tegra@...r.kernel.org>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Lorenzo Pieralisi <lorenzo.pieralisi@....com>
Subject: Re: [PATCH 1/3] of: Add of_match_machine helper

On 17/08/14 18:28, Grant Likely wrote:
> On Fri, 8 Aug 2014 02:01:53 +0300, Tuomas Tynkkynen <ttynkkynen@...dia.com> wrote:
[...]
>> +EXPORT_SYMBOL(of_match_machine);
> 
> Too wordy...
> 
> 	return of_match_node(matches, of_allnodes);
> 
> :-)
> 
> It could be a static inline, but I don't think it's even worth having a
> helper. The callers could just open code the above.
> 

Do you mean all the drivers should be referring to of_allnodes directly?
I see that it's indeed exported, but to me that sounds like relying too
much on an implementation detail. In fact, Documentation/devicetree/todo.txt
even seems to have a TODO entry for its removal ("Remove of_allnodes list
and iterate using list of child nodes alone").

-- 
nvpublic
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