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linux-next/lib/math/lcm.c
Thomas Gleixner 457c899653 treewide: Add SPDX license identifier for missed files
Add SPDX license identifiers to all files which:

 - Have no license information of any form

 - Have EXPORT_.*_SYMBOL_GPL inside which was used in the
   initial scan/conversion to ignore the file

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 10:50:45 +02:00

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482 B
C

// SPDX-License-Identifier: GPL-2.0-only
#include <linux/compiler.h>
#include <linux/gcd.h>
#include <linux/export.h>
#include <linux/lcm.h>
/* Lowest common multiple */
unsigned long lcm(unsigned long a, unsigned long b)
{
if (a && b)
return (a / gcd(a, b)) * b;
else
return 0;
}
EXPORT_SYMBOL_GPL(lcm);
unsigned long lcm_not_zero(unsigned long a, unsigned long b)
{
unsigned long l = lcm(a, b);
if (l)
return l;
return (b ? : a);
}
EXPORT_SYMBOL_GPL(lcm_not_zero);