1#include <linux/compiler.h>
2#include <linux/gcd.h>
3#include <linux/export.h>
4#include <linux/lcm.h>
5
6/* Lowest common multiple */
7unsigned long lcm(unsigned long a, unsigned long b)
8{
9 if (a && b)
10 return (a / gcd(a, b)) * b;
11 else
12 return 0;
13}
14EXPORT_SYMBOL_GPL(lcm);
15
16unsigned long lcm_not_zero(unsigned long a, unsigned long b)
17{
18 unsigned long l = lcm(a, b);
19
20 if (l)
21 return l;
22
23 return (b ? : a);
24}
25EXPORT_SYMBOL_GPL(lcm_not_zero);
26