linux-kernel - Re: [PATCH] x86: use enum instead of literals for trap values

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Message-ID: <20120309221302.GA17158@elte.hu>
Date:	Fri, 9 Mar 2012 23:13:02 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Steven Rostedt <rostedt@...dmis.org>,
	Borislav Petkov <bp@...64.org>,
	Kees Cook <keescook@...omium.org>,
	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>, x86@...nel.org,
	Andy Lutomirski <luto@....edu>,
	Hidetoshi Seto <seto.hidetoshi@...fujitsu.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Mike Frysinger <vapier@...too.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [PATCH] x86: use enum instead of literals for trap values


* H. Peter Anvin <hpa@...or.com> wrote:

> On 03/09/2012 10:52 AM, Steven Rostedt wrote:
> > I agree too, except where does "XCP" come from? Is it short for
> > "exception"?
> 
> Yes, short for "exception".  I hate to admit it, but it comes from the
> constants we used in the Transmeta microcode ;)

Hm, were I to see 'X86_XCP_MC' for the first time I'd have no 
idea what it means. Really, lets not use random new 
abbreviations, lets use well-known patterns.

Make it X86_TRAP_XX, it's both short and correct?

Thanks,

	Ingo
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