diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h
index 52075da..5ca2d26c 100644
--- a/kernel/rcutree_plugin.h
+++ b/kernel/rcutree_plugin.h
@@ -33,7 +33,7 @@
 /*
  * Tell them what RCU they are running.
  */
-static void rcu_bootup_announce(void)
+static void __init rcu_bootup_announce(void)
 {
 	printk(KERN_INFO
 	       "Experimental preemptable hierarchical RCU implementation.\n");
@@ -481,7 +481,7 @@
 /*
  * Tell them what RCU they are running.
  */
-static void rcu_bootup_announce(void)
+static void __init rcu_bootup_announce(void)
 {
 	printk(KERN_INFO "Hierarchical RCU implementation.\n");
 }