diff --git a/include/linux/srcu.h b/include/linux/srcu.h
index 947fdab..8a45367 100644
--- a/include/linux/srcu.h
+++ b/include/linux/srcu.h
@@ -24,6 +24,9 @@
  *
  */
 
+#ifndef _LINUX_SRCU_H
+#define _LINUX_SRCU_H
+
 struct srcu_struct_array {
 	int c[2];
 };
@@ -46,4 +49,5 @@
 void srcu_read_unlock(struct srcu_struct *sp, int idx) __releases(sp);
 void synchronize_srcu(struct srcu_struct *sp);
 long srcu_batches_completed(struct srcu_struct *sp);
-void cleanup_srcu_struct(struct srcu_struct *sp);
+
+#endif