linux-kernel - Re: [PATCH] Fix BUILD_BUG_ON in fs/compat_ioctl.c to build with gcc 4.5 snapshot

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Message-Id: <200912212102.39878.rusty@rustcorp.com.au>
Date:	Mon, 21 Dec 2009 21:02:39 +1030
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	torvalds@...ux-foundation.org, linux-kernel@...r.kernel.org,
	jbeulich@...ell.com, rguenther@...e.de, arnd@...db.de
Subject: Re: [PATCH] Fix BUILD_BUG_ON in fs/compat_ioctl.c to build with gcc 4.5 snapshot

On Mon, 21 Dec 2009 03:23:15 am Andi Kleen wrote:
> Fix BUILD_BUG_ON in fs/compat_ioctl.c to build with gcc 4.5 snapshot
> 
> The BUILD_BUG_ON in compat_ioctl_check_table() fails
> with a recent gcc mainline snapshot (gcc version 4.5.0 20091219)
> (GCC)), even though it works with older compilers.

We have a proper fix for BUILD_BUG_ON which I sent Linus a pull req for,
but I think it was too late:

	git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus.git BUILD_BUG_ON

It's not really high priority, but it'd be nice to fix this properly.

Thanks,
Rusty.
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