summaryrefslogtreecommitdiffstats
path: root/lib/gcd.c
diff options
context:
space:
mode:
Diffstat (limited to 'lib/gcd.c')
-rw-r--r--lib/gcd.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/gcd.c b/lib/gcd.c
index 135ee6407a5e..227dea924425 100644
--- a/lib/gcd.c
+++ b/lib/gcd.c
@@ -13,6 +13,12 @@
#if !defined(CONFIG_CPU_NO_EFFICIENT_FFS) && !defined(CPU_NO_EFFICIENT_FFS)
/* If __ffs is available, the even/odd algorithm benchmarks slower. */
+
+/**
+ * gcd - calculate and return the greatest common divisor of 2 unsigned longs
+ * @a: first value
+ * @b: second value
+ */
unsigned long gcd(unsigned long a, unsigned long b)
{
unsigned long r = a | b;