linux-kernel - Re: [RFC] x86: merge nmi

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Message-ID: <482FE9CA.4090804@goop.org>
Date:	Sun, 18 May 2008 09:33:14 +0100
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Cyrill Gorcunov <gorcunov@...il.com>
CC:	Thomas Gleixner <tglx@...utronix.de>,
	"Maciej W. Rozycki" <macro@...ux-mips.org>,
	Tom Spink <tspink@...il.com>, Ingo Molnar <mingo@...e.hu>,
	"H. Peter Anvin" <hpa@...or.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Jiri Slaby <jirislaby@...il.com>,
	Sam Ravnborg <sam@...nborg.org>,
	Andi Kleen <andi@...stfloor.org>
Subject: Re: [RFC] x86: merge nmi_32-64 to nmi.c

Cyrill Gorcunov wrote:
> I think I would prefer Maciej's advice then but with capital
> letters (to easy distinguish them and point an attention) like
>
> #ifdef CONFG_X86_64
> #define CPU_64 1
> #else
> #define CPU_64 0
> #endif

The other problem in this case is that cpu_pda() doesn't exit for 
32-bit, so it probably won't compile anyway.  But in general, I fully 
support using if (constant) over #ifdef (?: not so much).

    J
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