mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-24 10:00:51 +07:00
e96875677f
Account for all properties when a and/or b are 0: gcd(0, 0) = 0 gcd(a, 0) = a gcd(0, b) = b Fixes no known problems in current kernels. Signed-off-by: Davidlohr Bueso <dave@gnu.org> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
22 lines
313 B
C
22 lines
313 B
C
#include <linux/kernel.h>
|
|
#include <linux/gcd.h>
|
|
#include <linux/export.h>
|
|
|
|
/* Greatest common divisor */
|
|
unsigned long gcd(unsigned long a, unsigned long b)
|
|
{
|
|
unsigned long r;
|
|
|
|
if (a < b)
|
|
swap(a, b);
|
|
|
|
if (!b)
|
|
return a;
|
|
while ((r = a % b) != 0) {
|
|
a = b;
|
|
b = r;
|
|
}
|
|
return b;
|
|
}
|
|
EXPORT_SYMBOL_GPL(gcd);
|