linux-kernel - Re: [PATCH v3 04/10] bug.h: directly include linux/compiler.h

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Message-ID: <20121024195520.GD17945@liondog.tnic>
Date:	Wed, 24 Oct 2012 21:55:20 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	danielfsantos@....net
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Andi Kleen <ak@...ux.intel.com>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Christopher Li <sparse@...isli.org>,
	Daniel Santos <daniel.santos@...ox.com>,
	David Daney <david.daney@...ium.com>,
	David Howells <dhowells@...hat.com>,
	Joe Perches <joe@...ches.com>,
	Josh Triplett <josh@...htriplett.org>,
	Konstantin Khlebnikov <khlebnikov@...nvz.org>,
	linux-sparse@...r.kernel.org,
	Michel Lespinasse <walken@...gle.com>,
	Paul Gortmaker <paul.gortmaker@...driver.com>,
	Pavel Pisa <pisa@....felk.cvut.cz>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Steven Rostedt <rostedt@...dmis.org>,
	David Rientjes <rientjes@...gle.com>
Subject: Re: [PATCH v3 04/10] bug.h: directly include linux/compiler.h

On Wed, Oct 24, 2012 at 11:33:55AM -0500, danielfsantos@....net wrote:
> Currently, we are only including asm/bug.h and then expecting that
> linux/compiler.h will eventually be included to define __linktime_error
> (used in BUILD_BUG_ON). This patch includes it directly for clarity and
> to avoid the possibility of changes in <arch>/*/include/asm/bug.h being
> changed or not including linux/compiler.h for some reason. (Later
> patches will in this set use more macros defined in compiler*.h.)
> 
> Signed-off-by: Daniel Santos <daniel.santos@...ox.com>
> ---
>  include/linux/bug.h |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
> 
> diff --git a/include/linux/bug.h b/include/linux/bug.h
> index aaac4bb..4bd74d8 100644
> --- a/include/linux/bug.h
> +++ b/include/linux/bug.h
> @@ -2,6 +2,7 @@
>  #define _LINUX_BUG_H
>  
>  #include <asm/bug.h>
> +#include <linux/compiler.h>
>  
>  enum bug_trap_type {
>  	BUG_TRAP_TYPE_NONE = 0,
> -- 
> 1.7.3.4

Why is this a separate patch and why not add that single line in 6/10
where you define BUILD_BUG_ON?

Thanks.

-- 
Regards/Gruss,
    Boris.
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