swh:1:snp:49cd9498d6cccc5e78252c27dcb645bcf7bf0c91
Raw File
Tip revision: c1ae3cfa0e89fa1a7ecc4c99031f5e9ae99d9201 authored by Linus Torvalds on 05 March 2017, 20:59:56 UTC
Linux 4.11-rc1
Tip revision: c1ae3cf
lcm.c
#include <linux/compiler.h>
#include <linux/gcd.h>
#include <linux/export.h>
#include <linux/lcm.h>

/* Lowest common multiple */
unsigned long lcm(unsigned long a, unsigned long b)
{
	if (a && b)
		return (a / gcd(a, b)) * b;
	else
		return 0;
}
EXPORT_SYMBOL_GPL(lcm);

unsigned long lcm_not_zero(unsigned long a, unsigned long b)
{
	unsigned long l = lcm(a, b);

	if (l)
		return l;

	return (b ? : a);
}
EXPORT_SYMBOL_GPL(lcm_not_zero);
back to top