diff --git a/ap/os/linux/linux-3.4.x/lib/lcm.c b/ap/os/linux/linux-3.4.x/lib/lcm.c
new file mode 100644
index 0000000..b9c8de4
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/lib/lcm.c
@@ -0,0 +1,16 @@
+#include <linux/kernel.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 * b) / gcd(a, b);
+	else if (b)
+		return b;
+
+	return a;
+}
+EXPORT_SYMBOL_GPL(lcm);