linux-kernel - Re: [PATCH] ISDN: make ICN not auto-grab port 0x320

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Date:	Mon, 11 Aug 2008 16:48:14 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	rene.herman@...access.nl, akpm@...uxfoundation.org,
	fritz@...n4linux.de, kkeil@...e.de,
	isdn4linux@...tserv.isdn4linux.de, linux-kernel@...r.kernel.org,
	mingo@...e.hu
Subject: Re: [PATCH] ISDN: make ICN not auto-grab port 0x320

On Sat, 9 Aug 2008 21:50:20 +0100
Alan Cox <alan@...rguk.ukuu.org.uk> wrote:

> On Sat, 09 Aug 2008 19:39:53 +0200
> Rene Herman <rene.herman@...access.nl> wrote:
> 
> > Grabbing ISA bus resources without anything or anyone telling us we
> > should can break boot on randconfig/allyesconfig builds by keeping
> > resources that are in fact owned by different hardware busy and does
> > as reported by Ingo Molnar.
> 
> Not an interesting case, and also wrong in the modular case where loading
> the module is a direct user action indicating clear intent to use the
> functionality *as is*.
> 
> NAK this one too.
> 
> At the very least make the requirement to say "like please run for real"
> dependant on it not being built modular - which is what was done for the
> last ones that were twiddled to keep Ingo amused.
> 

otoh it's a bit sad to break allyesconfig kernels - there is
regression-testing value in being able to run such kernels.

I wonder if we can add a new boot option `allyesconfig-test' or
something like that, and then, within the offending drivers, test that
flag and take suitable avoiding action.

Or we could do it at compile-time - define
CONFIG_ALLYESCONFIG_TESTING in some fashion.

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