linux-kernel - Re: [PATCH v2] ARM: uaccess: Implement strict user copy checks

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Message-ID: <20100825125451.GH2153@osiris.boeblingen.de.ibm.com>
Date:	Wed, 25 Aug 2010 14:54:52 +0200
From:	Heiko Carstens <heiko.carstens@...ibm.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Stephen Boyd <sboyd@...eaurora.org>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Russell King <linux@....linux.org.uk>
Subject: Re: [PATCH v2] ARM: uaccess: Implement strict user copy checks

On Wed, Aug 25, 2010 at 02:14:16PM +0200, Arnd Bergmann wrote:
> > Then maybe add a "choice" Kconfig option in a way that both allyesconfig
> > as well as allnoconfig will build?
> 
> I think it would be easier to remove the config option entirely on s390
> and just always warn. As I said earlier in this thread, I generally
> don't think this particular warning is more important than a lot of
> the other ones that we don't turn into errors.

I disagree: a default kernel build should compile without the noise of
tens of false positive warnings.
Nobody would look at new warnings and fix possible bugs.
That's why I want to have an option to turn the warnings off (default).

Or are you volunteering to "fix" all the false positives? :)
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