include/linux/gcd.h

#ifndef _GCD_H
#define _GCD_H

#include <linux/compiler.h>

unsigned long gcd(unsigned long a, unsigned long b) __attribute_const__;

#endif /* _GCD_H */
lib: add lib/gcd.c This patch adds lib/gcd.c which contains a greatest common divider implementation taken from sound/core/pcm_timer.c Several usages of this new library function will be sent to subsystem maintainers. [akpm@linux-foundation.org: use swap() (pointed out by Joe)] [akpm@linux-foundation.org: just add gcd.o to obj-y, remove Kconfig changes] Signed-off-by: Florian Fainelli <florian@openwrt.org> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Takashi Iwai <tiwai@suse.de> Cc: Simon Horman <horms@verge.net.au> Cc: Julius Volz <juliusv@google.com> Cc: David S. Miller <davem@davemloft.net> Cc: Patrick McHardy <kaber@trash.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 2009-06-17 16:28:38 -07:00			`#ifndef _GCD_H`
			`#define _GCD_H`

			`#include <linux/compiler.h>`

			`unsigned long gcd(unsigned long a, unsigned long b) __attribute_const__;`

			`#endif /* _GCD_H */`