1 #include <linux/kernel.h>
2 #include <linux/gcd.h>
3 #include <linux/module.h>
4 
5 /* Greatest common divisor */
gcd(unsigned long a,unsigned long b)6 unsigned long gcd(unsigned long a, unsigned long b)
7 {
8 	unsigned long r;
9 
10 	if (a < b)
11 		swap(a, b);
12 	while ((r = a % b) != 0) {
13 		a = b;
14 		b = r;
15 	}
16 	return b;
17 }
18 EXPORT_SYMBOL_GPL(gcd);
19