linux-kernel - Re: [PATCH v4] of: add functions to count number of elements in a property

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Date:	Wed, 05 Feb 2014 13:45:36 +0100
From:	Heiko Stübner <heiko@...ech.de>
To:	Grant Likely <grant.likely@...aro.org>
Cc:	arm@...nel.org, Rob Herring <robherring2@...il.com>,
	Mark Rutland <mark.rutland@....com>,
	Pawel Moll <Pawel.Moll@....com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Stephen Warren <swarren@...dotorg.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>
Subject: Re: [PATCH v4] of: add functions to count number of elements in a property

Am Mittwoch, 5. Februar 2014, 12:06:52 schrieb Grant Likely:
> On Tue, 04 Feb 2014 19:48:17 +0100, Heiko StÃ¼bner <heiko@...ech.de> wrote:
> > Hi Grant,
> > 
> > On Tuesday, 4. February 2014 17:30:34 Grant Likely wrote:
> > > On Sat, 18 Jan 2014 09:07:30 -0600, Rob Herring <robherring2@...il.com>
> > 
> > wrote:
> > > > On Sat, Jan 18, 2014 at 6:02 AM, Heiko StÃÂ¼bner <heiko@...ech.de> 
wrote:
> > > > > The need to know the number of array elements in a property is
> > > > > a common pattern. To prevent duplication of open-coded
> > > > > implementations
> > > > > add a helper static function that also centralises strict sanity
> > > > > checking and DTB format details, as well as a set of wrapper
> > > > > functions
> > > > > for u8, u16, u32 and u64.
> > > > > 
> > > > > Suggested-by: Mark Rutland <mark.rutland@....com>
> > > > > Signed-off-by: Heiko Stuebner <heiko@...ech.de>
> > > > > ---
> > > > 
> > > > Looks good. Do you plan to convert some users to use this?
> > > 
> > > I'll take that as an acked-by. Merged, thanks.
> > 
> > before you taking this patch, I was planning on simply sending this as
> > part of my rockchip-smp series - as I'm currently the only user of it :-)
> > .
> > 
> > This going through your tree is most likely the better way, but now I need
> > it to somehow make its way into arm-soc too ... I guess some sort of
> > stable branch arm-soc could pull?
> 
> Nah, I'll drop it from my tree. Add my acked-by and merge it via
> arm-soc.

As I said on IRC, now it seems like you can keep this patch in your tree :-)

If we're really going with reserved-memory like you suggested in the rockchip-
smp series it removes the need to count u32-elements in a property for me, as 
the reserved blocks move into individual subnodes.


Heiko

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