linux-kernel - Re: ARM defconfig files

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Date:	Mon, 12 Jul 2010 13:50:47 -0600
From:	Grant Likely <grant.likely@...retlab.ca>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Nicolas Pitre <nico@...xnic.net>,
	Daniel Walker <dwalker@...eaurora.org>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	Kevin Hilman <khilman@...prootsystems.com>,
	linux-arm-msm@...r.kernel.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-omap@...r.kernel.org,
	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>,
	Eric Miao <eric.miao@...onical.com>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: ARM defconfig files

On Mon, Jul 12, 2010 at 1:34 PM, Linus Torvalds
<torvalds@...ux-foundation.org> wrote:
> On Mon, Jul 12, 2010 at 12:17 PM, Nicolas Pitre <nico@...xnic.net> wrote:
>> I think Uwe could provide his script and add it to the kernel tree.
>> Then all architectures could benefit from it.  Having the defconfig
>> files contain only those options which are different from the defaults
>> is certainly more readable, even on x86.
>
> Quite possible. But maintainers would need to be on the lookout of
> people actually using the script, and refusing to apply patches that
> re-introduce the whole big thing.

I can (partially) speak for powerpc.  If ARM uses this approach, then
I think we can do the same.  After the defconfigs are trimmed, I
certainly won't pick up any more full defconfigs.

Of course, I'm also operating under the assumption that this is a
temporary measure until one of the better solutions is implemented.  I
do suspect that the trimmed defconfigs will tend to be unstable and
will still require manual maintenance.  I think the Kconfig fragments
approach is the most promising if the dependencies issue can be
solved.

g.
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