linux-kernel - Re: [PATCH] kernel: prevent unnecessary rebuilding due to config

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Date:	Wed, 20 Jul 2011 01:33:27 +0200
From:	Michal Marek <mmarek@...e.cz>
To:	Randy Dunlap <rdunlap@...otime.net>
Cc:	Peter Foley <pefoley2@...izon.net>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] kernel: prevent unnecessary rebuilding due to
 config_data.gz

On Wed, Jul 06, 2011 at 08:33:29AM -0700, Randy Dunlap wrote:
> On Tue, 05 Jul 2011 19:42:18 -0400 (EDT) Peter Foley wrote:
> 
> > When IKCONFIG is built-in make oldconfig will cause the kernel to be 
> > relinked even if .config didn't change. This happens because of a 
> > config_data.gz dependency on .config. This patch changes the if_changed to 
> > a filechk so that config_data.h is only rebuilt when the contents 
> > have actually changed.
> > 
> > Signed-off-by: Peter Foley <pefoley2@...izon.net>
> 
> Michal,
> If this looks OK to you, please merge it.

Thanks, merged to kbuild-2.6.git#kbuild.

Michal
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