linux-kernel - Re: [PATCH 2/2] Kbuild: Use dtc's -d (dependency) option

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Date:	Wed, 11 Jan 2012 14:36:21 -0500
From:	Mark Salter <msalter@...hat.com>
To:	Stephen Warren <swarren@...dia.com>
Cc:	Michal Marek <mmarek@...e.cz>, Jon Loeliger <jdl@....com>,
	David Gibson <david@...son.dropbear.id.au>,
	Russell King <linux@....linux.org.uk>,
	Aurelien Jacquiot <a-jacquiot@...com>,
	Michal Simek <monstr@...str.eu>,
	Jonas Bonn <jonas@...thpole.se>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	Grant Likely <grant.likely@...retlab.ca>,
	Rob Herring <rob.herring@...xeda.com>,
	Arnd Bergmann <arnd@...db.de>, linux-kbuild@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-c6x-dev@...ux-c6x.org, microblaze-uclinux@...e.uq.edu.au,
	linux@...nrisc.net, linuxppc-dev@...ts.ozlabs.org,
	Devicetree Discuss <devicetree-discuss@...ts.ozlabs.org>
Subject: Re: [PATCH 2/2] Kbuild: Use dtc's -d (dependency) option

On Mon, 2012-01-09 at 11:38 -0700, Stephen Warren wrote:
> This hooks dtc into Kbuild's dependency system.
> 
> Thus, for example, "make dtbs" will rebuild tegra-harmony.dtb if only
> tegra20.dtsi has changed yet tegra-harmony.dts has not. The previous
> lack of this feature recently caused me to have very confusing "git
> bisect" results.
> 
> For ARM, it's obvious what to add to $(targets). I'm not familiar enough
> with other architectures to know what to add there. Powerpc appears to
> already add various .dtb files into $(targets), but the other archs may
> need something added to $(targets) to work.
> 
> Signed-off-by: Stephen Warren <swarren@...dia.com>
> 

Acked-by: Mark Salter <msalter@...hat.com>

For the arch/c6x bit.


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