linux-kernel - Re: [GIT PULL] x86: cleanup alternative.h

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Date:	Tue, 28 Apr 2009 14:11:14 -0400
From:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Ingo Molnar <mingo@...e.hu>, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, Andi Kleen <andi@...stfloor.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [GIT PULL] x86: cleanup alternative.h

* H. Peter Anvin (hpa@...or.com) wrote:
> Ingo Molnar wrote:
> > 
> > Please try to align both the continuation backslashes and the 
> > comments vertically. Something like:
> > 
> >> +#define ALTERNATIVE(oldinstr, newinstr, feature)			 \
> >> +									 \
> >> +	"661:\n\t" oldinstr "\n662:\n"					 \
> >> +	".section .altinstructions,\"a\"\n"			 	 \
> >> +	_ASM_ALIGN "\n"						 	 \
> >> +	_ASM_PTR "661b\n"			   /* label           */ \
> >> +	_ASM_PTR "663f\n"			   /* new instruction */ \
> >> +	 "	 .byte " __stringify(feature) "\n" /* feature bit     */ \
> >> +	 "	 .byte 662b-661b\n"		   /* sourcelen       */ \
> >> +	 "	 .byte 664f-663f\n"		   /* replacementlen  */ \ 
> > 
> > ... should do the trick. (also note the extra line after the #define)
> > 
> 
> This formatting seems a bit odd; _ASM_ALIGN, _ASM_PTR, and .section are
> functionally equivalent to the opcode field, as is .byte, so the shift
> in indentation for the .byte lines seems odd at best.
> 

OK, I'll repost with corrected indentation. I tried to follow the
original style as closely as possible, but indeed a cleanup is needed
here.

Mathieu

> 	-hpa
> 
> -- 
> H. Peter Anvin, Intel Open Source Technology Center
> I work for Intel.  I don't speak on their behalf.
> 

-- 
Mathieu Desnoyers
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68
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