diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h
index 804e4e4a2b62ef232417ad6432de13c3acee22fd..e408722a84c7bf34754af56a0182eee87855fbc4 100644
--- a/include/linux/ipc_namespace.h
+++ b/include/linux/ipc_namespace.h
@@ -96,10 +96,6 @@ static inline int mq_init_ns(struct ipc_namespace *ns) { return 0; }
 #if defined(CONFIG_IPC_NS)
 extern struct ipc_namespace *copy_ipcs(unsigned long flags,
 				       struct ipc_namespace *ns);
-extern void free_ipcs(struct ipc_namespace *ns, struct ipc_ids *ids,
-		      void (*free)(struct ipc_namespace *,
-				   struct kern_ipc_perm *));
-
 static inline struct ipc_namespace *get_ipc_ns(struct ipc_namespace *ns)
 {
 	if (ns)
diff --git a/ipc/util.h b/ipc/util.h
index f9fe90e4886167adeb3628490ac4839b9ccf00c9..ab3ebf2621b9c9e725aab9dce32f5ad395063547 100644
--- a/ipc/util.h
+++ b/ipc/util.h
@@ -171,5 +171,6 @@ static inline void ipc_unlock(struct kern_ipc_perm *perm)
 struct kern_ipc_perm *ipc_lock_check(struct ipc_ids *ids, int id);
 int ipcget(struct ipc_namespace *ns, struct ipc_ids *ids,
 			struct ipc_ops *ops, struct ipc_params *params);
-
+void free_ipcs(struct ipc_namespace *ns, struct ipc_ids *ids,
+		void (*free)(struct ipc_namespace *, struct kern_ipc_perm *));
 #endif