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

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Date:	Mon, 21 Dec 2009 17:48:12 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	torvalds@...ux-foundation.org, linux-kernel@...r.kernel.org,
	jbeulich@...ell.com, rusty@...tcorp.com.au, rguenther@...e.de
Subject: Re: [PATCH] Fix BUILD_BUG_ON in fs/compat_ioctl.c to build with gcc 4.5 snapshot

On Sunday 20 December 2009, Andi Kleen wrote:
> ===================================================================
> --- linux-2.6.33-rc1-ak.orig/fs/compat_ioctl.c
> +++ linux-2.6.33-rc1-ak/fs/compat_ioctl.c
> @@ -1649,8 +1649,10 @@ static int compat_ioctl_check_table(unsi
>  {
>         int i;
>         const int max = ARRAY_SIZE(ioctl_pointer) - 1;
> +       extern void __ioctl_pointer_too_large(void);
>  
> -       BUILD_BUG_ON(max >= (1 << 16));
> +       if (max >= (1 << 16))
> +               __ioctl_pointer_too_large();
>  
>         /* guess initial offset into table, assuming a
>            normalized distribution */

Acked-by: Arnd Bergmann <arnd@...db.de>
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