linux-kernel - Re: [PATCH] x86: make asm/asm.h work for asm code.

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Date:	Mon, 16 Jun 2008 15:48:51 -0700
From:	"H. Peter Anvin" <hpa@...nel.org>
To:	Jeremy Fitzhardinge <jeremy@...p.org>
CC:	the arch/x86 maintainers <x86@...nel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86: make asm/asm.h work for asm code.

Jeremy Fitzhardinge wrote:
> This is useful for unifying some pieces of asm code.
> 
> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>

Thinking about it some more, this should be possible to do cleaner like 
this:

#ifdef CONFIG_X86_32
# ifdef __ASSEMBLY__
#  define __ASM_SEL(a,b) a
# else
#  define __ASM_SEL(a,b) " " #a " "
# endif
#else
# ifdef __ASSEMBLY__
#  define __ASM_SEL(a,b) b
# else
#  define __ASM_SEL(a,b) " " #b " "
# endif
#endif

#define _ASM_INC    _ASM_SEL(incl,incq)
#define _ASM_DEC    _ASM_SEL(decl,decq)

/* ... etc ... */
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