linux-kernel - Re: [PATCH 1/6] arch: add #define for each of optimized find bitops

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Date:	Tue, 26 Apr 2011 14:23:20 +0200
From:	Hans-Christian Egtvedt <hans-christian.egtvedt@...el.com>
To:	Akinobu Mita <akinobu.mita@...il.com>
Cc:	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	akpm@...ux-foundation.org, arnd@...db.de,
	Russell King <linux@....linux.org.uk>,
	linux-arm-kernel@...ts.infradead.org,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	linux390@...ibm.com, linux-s390@...r.kernel.org,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	linux-m68k@...r.kernel.org, Greg Ungerer <gerg@...inux.org>
Subject: Re: [PATCH 1/6] arch: add #define for each of optimized find bitops

On Sun, 2011-04-24 at 18:51 +0900, Akinobu Mita wrote:
> The style that we normally use in asm-generic is to test the macro itself
> for existence, so in asm-generic, do:
> 
> 	#ifndef find_next_zero_bit_le
> 	extern unsigned long find_next_zero_bit_le(const void *addr,
> 		unsigned long size, unsigned long offset);
> 	#endif
> 
> and in the architectures, write
> 
> 	static inline unsigned long find_next_zero_bit_le(const void *addr,
> 		unsigned long size, unsigned long offset)
> 	#define find_next_zero_bit_le find_next_zero_bit_le
> 
> This adds the #define for each of the optimized find bitops in the
> architectures.
> 
> Suggested-by: Arnd Bergmann <arnd@...db.de>
> Signed-off-by: Akinobu Mita <akinobu.mita@...il.com>
> Cc: Russell King <linux@....linux.org.uk>
> Cc: linux-arm-kernel@...ts.infradead.org
> Cc: Martin Schwidefsky <schwidefsky@...ibm.com>
> Cc: Heiko Carstens <heiko.carstens@...ibm.com>
> Cc: linux390@...ibm.com
> Cc: linux-s390@...r.kernel.org
> Cc: Hans-Christian Egtvedt <hans-christian.egtvedt@...el.com>
> Cc: Geert Uytterhoeven <geert@...ux-m68k.org>
> Cc: linux-m68k@...ts.linux-m68k.org
> Cc: Greg Ungerer <gerg@...inux.org>

For the arch/avr32/include/asm/bitops.h changes.

Acked-by: Hans-Christian Egtvedt <hans-christian.egtvedt@...el.com>

-- 
Hans-Christian Egtvedt

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