Root/lib/gcd.c

1#include <linux/kernel.h>
2#include <linux/gcd.h>
3#include <linux/module.h>
4
5/* Greatest common divisor */
6unsigned 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}
18EXPORT_SYMBOL_GPL(gcd);
19

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