linux-kernel - Re: [PATCH, v3] eeepc-laptop: Fix build failure with HOTPLUG_PCI && !SYSFS (was: [git pull request] ACPI & driver patches for 2.6.31-rc1)

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Date:	Mon, 29 Jun 2009 22:43:50 +0200
From:	Sam Ravnborg <sam@...nborg.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Len Brown <lenb@...nel.org>,
	Vegard Nossum <vegard.nossum@...il.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Corentin Chary <corentincj@...aif.net>,
	Randy Dunlap <randy.dunlap@...cle.com>,
	Matthew Garrett <mjg@...hat.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-acpi@...r.kernel.org
Subject: Re: [PATCH, v3] eeepc-laptop: Fix build failure with HOTPLUG_PCI && !SYSFS (was: [git pull request] ACPI & driver patches for 2.6.31-rc1)

On Mon, Jun 29, 2009 at 09:34:06PM +0200, Ingo Molnar wrote:
> 
> * Len Brown <lenb@...nel.org> wrote:
> 
> > Thanks for fixing this config, Ingo.
> > 
> > I agree, our build system can handle "depends",
> > but "select" does not deliver on what it advertises,
> > making it a trap for programmers.
> 
> Hm, this portion of Kconfig is a trap in a way indeed - on the other 
> hand it is also a useful tool and the simplistic approach to 
> disallow select altogether is a step backwards.
> 
> IIRC either Vegard or Steve has come up with a patch series that 
> improved Kconfig to warn about problem selects while still allowing 
> the simple ones. That would deflect most of the bad uses while still 
> allowing the good uses. Not sure what happened to that series.

Steve came up with a patch that warned about problematic select
only in a defconfig. It did not warn properly for all the problematic
selects.
I ran (as usual) out of time last time I looked :-(
I would likely need a full day or two to come up with somthing,
but these days finding an hour is not easy.

	Sam
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