1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 1b18090..95e9f3f 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -93,6 +93,7 @@ static DEFINE_MUTEX(cgroup_root_mutex);
  * cgroup_mutex.
  */
 #define SUBSYS(_x) &_x ## _subsys,
+#define IS_SUBSYS_ENABLED(option) IS_BUILTIN(option)
 static struct cgroup_subsys *subsys[CGROUP_SUBSYS_COUNT] = {
 #include <linux/cgroup_subsys.h>
 };