[PATCH] xtensa: remove io_remap_page_range and minor clean-ups

Remove io_remap_page_range() from all of Linux 2.6.x (as requested and
suggested by Randy Dunlap) and minor clean-ups.

Signed-off-by: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 11 insertions, 38 deletions

diff --git a/include/asm-xtensa/semaphore.h b/include/asm-xtensa/semaphore.h
index db740b8bc6f0..09e89ab3eb61 100644
--- a/include/asm-xtensa/semaphore.h
+++ b/include/asm-xtensa/semaphore.h
@@ -20,28 +20,19 @@ struct semaphore {
 	atomic_t count;
 	int sleepers;
 	wait_queue_head_t wait;
-#if WAITQUEUE_DEBUG
-	long __magic;
-#endif
 };
 
-#if WAITQUEUE_DEBUG
-# define __SEM_DEBUG_INIT(name) \
-		, (int)&(name).__magic
-#else
-# define __SEM_DEBUG_INIT(name)
-#endif
-
-#define __SEMAPHORE_INITIALIZER(name,count)			\
-	{ ATOMIC_INIT(count), 					\
-	  0,							\
-	  __WAIT_QUEUE_HEAD_INITIALIZER((name).wait)		\
-	__SEM_DEBUG_INIT(name) }
+#define __SEMAPHORE_INITIALIZER(name,n)					\
+{									\
+	.count		= ATOMIC_INIT(n),				\
+	.sleepers	= 0,						\
+	.wait		= __WAIT_QUEUE_HEAD_INITIALIZER((name).wait)	\
+}
 
-#define __MUTEX_INITIALIZER(name) \
+#define __MUTEX_INITIALIZER(name) 					\
 	__SEMAPHORE_INITIALIZER(name, 1)
 
-#define __DECLARE_SEMAPHORE_GENERIC(name,count) \
+#define __DECLARE_SEMAPHORE_GENERIC(name,count) 			\
 	struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
 
 #define DECLARE_MUTEX(name) __DECLARE_SEMAPHORE_GENERIC(name,1)
@@ -49,17 +40,8 @@ struct semaphore {
 
 static inline void sema_init (struct semaphore *sem, int val)
 {
-/*
- *	*sem = (struct semaphore)__SEMAPHORE_INITIALIZER((*sem),val);
- *
- * i'd rather use the more flexible initialization above, but sadly
- * GCC 2.7.2.3 emits a bogus warning. EGCS doesnt. Oh well.
- */
 	atomic_set(&sem->count, val);
 	init_waitqueue_head(&sem->wait);
-#if WAITQUEUE_DEBUG
-	sem->__magic = (int)&sem->__magic;
-#endif
 }
 
 static inline void init_MUTEX (struct semaphore *sem)
@@ -81,9 +63,7 @@ extern spinlock_t semaphore_wake_lock;
 
 static inline void down(struct semaphore * sem)
 {
-#if WAITQUEUE_DEBUG
-	CHECK_MAGIC(sem->__magic);
-#endif
+	might_sleep();
 
 	if (atomic_sub_return(1, &sem->count) < 0)
 		__down(sem);
@@ -92,9 +72,8 @@ static inline void down(struct semaphore * sem)
 static inline int down_interruptible(struct semaphore * sem)
 {
 	int ret = 0;
-#if WAITQUEUE_DEBUG
-	CHECK_MAGIC(sem->__magic);
-#endif
+
+	might_sleep();
 
 	if (atomic_sub_return(1, &sem->count) < 0)
 		ret = __down_interruptible(sem);
@@ -104,9 +83,6 @@ static inline int down_interruptible(struct semaphore * sem)
 static inline int down_trylock(struct semaphore * sem)
 {
 	int ret = 0;
-#if WAITQUEUE_DEBUG
-	CHECK_MAGIC(sem->__magic);
-#endif
 
 	if (atomic_sub_return(1, &sem->count) < 0)
 		ret = __down_trylock(sem);
@@ -119,9 +95,6 @@ static inline int down_trylock(struct semaphore * sem)
  */
 static inline void up(struct semaphore * sem)
 {
-#if WAITQUEUE_DEBUG
-	CHECK_MAGIC(sem->__magic);
-#endif
 	if (atomic_add_return(1, &sem->count) <= 0)
 		__up(sem);
 }