linux-kernel - Re: 3.9-rc1 regression in arm dtb build

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Date:	Thu, 28 Mar 2013 20:33:23 +0100
From:	Pavel Machek <pavel@....cz>
To:	Stephen Warren <swarren@...dotorg.org>
Cc:	Grant Likely <grant.likely@...retlab.ca>,
	Olof Johansson <olof@...om.net>,
	kernel list <linux-kernel@...r.kernel.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	Arnd Bergmann <arnd@...db.de>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Rob Herring <rob.herring@...xeda.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: 3.9-rc1 regression in arm dtb build

On Thu 2013-03-28 08:49:20, Stephen Warren wrote:
> On 03/28/2013 03:29 AM, Pavel Machek wrote:
> ...
> > There's change that makes it pretty much impossible to build dtbs
> > reliably between different kernel versions, because it leaves old dtbs
> > around, and they survive even make clean.
> 
> One question here: Presumably the dtbs don't survive "make clean" if you
> run that right after building the dtbs, but only if you check out a new
> kernel version before running clean? Or is that not the case?

That was the case I seen, yes.

Have old kernel running, dtbs building. Apply a patch. It starts
behaving weird. You do make clean... but you still get old dtbs.

(It would be nice if make socfpga_cyclone5.dtb would magically remove
all the dtbs from old location; make dtbs does that if I understand
stuff correctly).

Thanks,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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