diff -Nurp -X linux-RT/Documentation/dontdiff linux-RT/include/linux/rt_lock.h linux-RT.mich/include/linux/rt_lock.h
--- linux-RT/include/linux/rt_lock.h	2005-05-30 10:42:47.000000000 +0200
+++ linux-RT.mich/include/linux/rt_lock.h	2005-05-30 11:32:12.000000000 +0200
@@ -201,11 +201,13 @@ extern void FASTCALL(__sema_init(struct 
 		__sema_init(sem, val, #sem, __FILE__, __LINE__)
 	
 extern void FASTCALL(__init_MUTEX(struct semaphore *sem, char *name, char *file, int line));
-extern void FASTCALL(__init_MUTEX_LOCKED(struct semaphore *sem, char *name, char *file, int line));
 #define rt_init_MUTEX(sem) \
 		__init_MUTEX(sem, #sem, __FILE__, __LINE__)
+/*
+ * No locked initialization for RT semaphores
+ */
 #define rt_init_MUTEX_LOCKED(sem) \
-		__init_MUTEX_LOCKED(sem, #sem, __FILE__, __LINE__)
+		there_is_no_init_MUTEX_LOCKED_for_RT_semaphores
 extern void FASTCALL(rt_down(struct semaphore *sem));
 extern int FASTCALL(rt_down_interruptible(struct semaphore *sem));
 extern int FASTCALL(rt_down_trylock(struct semaphore *sem));
@@ -259,6 +261,10 @@ do {									\
 	PICK_FUNC_1ARG(struct compat_semaphore, struct semaphore, \
 		compat_init_MUTEX, rt_init_MUTEX, sem)
 
+#define init_MUTEX_LOCKED(sem) \
+	PICK_FUNC_1ARG(struct compat_semaphore, struct semaphore, \
+		compat_init_MUTEX_LOCKED, rt_init_MUTEX_LOCKED, sem)
+
 #define down(sem) \
 	PICK_FUNC_1ARG(struct compat_semaphore, struct semaphore, \
 		compat_down, rt_down, sem)
@@ -284,11 +290,6 @@ do {									\
 		compat_sema_count, rt_sema_count, sem)
 
 /*
- * No locked initialization for RT semaphores:
- */
-#define init_MUTEX_LOCKED(sem) compat_init_MUTEX_LOCKED(sem)
-
-/*
  * rwsems:
  */