Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #include <linux/compiler.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #include <linux/gcd.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) #include <linux/export.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) #include <linux/lcm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) /* Lowest common multiple */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) unsigned long lcm(unsigned long a, unsigned long b)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 	if (a && b)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 		return (a / gcd(a, b)) * b;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) EXPORT_SYMBOL_GPL(lcm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) unsigned long lcm_not_zero(unsigned long a, unsigned long b)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	unsigned long l = lcm(a, b);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	if (l)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 		return l;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	return (b ? : a);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) EXPORT_SYMBOL_GPL(lcm_not_zero);