mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-16 05:36:42 +07:00
2c64e9cb0b
For better maintenance and expansion move the mathematic helpers to the separate folder. No functional change intended. Note, the int_sqrt() is not used as a part of lib, so, moved to regular obj. Link: http://lkml.kernel.org/r/20190323172531.80025-1-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Lee Jones <lee.jones@linaro.org> Cc: Daniel Thompson <daniel.thompson@linaro.org> Cc: Ray Jui <rjui@broadcom.com> [mchehab+samsung@kernel.org: fix broken doc references for div64.c and gcd.c] Link: http://lkml.kernel.org/r/734f49bae5d4052b3c25691dfefad59bea2e5843.1555580999.git.mchehab+samsung@kernel.org Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
26 lines
441 B
C
26 lines
441 B
C
#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);
|