[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>

5 files changed, 14 insertions, 56 deletions

diff --git a/include/asm-xtensa/atomic.h b/include/asm-xtensa/atomic.h
index 24f86f0e43c..12b5732dc6e 100644
--- a/include/asm-xtensa/atomic.h
+++ b/include/asm-xtensa/atomic.h
@@ -22,7 +22,7 @@ typedef struct { volatile int counter; } atomic_t;
 #include <asm/processor.h>
 #include <asm/system.h>
 
-#define ATOMIC_INIT(i)  ( (atomic_t) { (i) } )
+#define ATOMIC_INIT(i)  { (i) }
 
 /*
  * This Xtensa implementation assumes that the right mechanism
diff --git a/include/asm-xtensa/bitops.h b/include/asm-xtensa/bitops.h
index d395ef226c3..e76ee889e21 100644
--- a/include/asm-xtensa/bitops.h
+++ b/include/asm-xtensa/bitops.h
@@ -174,7 +174,7 @@ static __inline__ int test_bit(int nr, const volatile void *addr)
         return 1UL & (((const volatile unsigned int *)addr)[nr>>5] >> (nr&31));
 }
 
-#if XCHAL_HAVE_NSAU
+#if XCHAL_HAVE_NSA
 
 static __inline__ int __cntlz (unsigned long x)
 {
diff --git a/include/asm-xtensa/hardirq.h b/include/asm-xtensa/hardirq.h
index e07c76c36b9..aa9c1adf68d 100644
--- a/include/asm-xtensa/hardirq.h
+++ b/include/asm-xtensa/hardirq.h
@@ -23,6 +23,7 @@ typedef struct {
         unsigned int __nmi_count;              /* arch dependent */
 } ____cacheline_aligned irq_cpustat_t;
 
+void ack_bad_irq(unsigned int irq);
 #include <linux/irq_cpustat.h>  /* Standard mappings for irq_cpustat_t above */
 
 #endif  /* _XTENSA_HARDIRQ_H */
diff --git a/include/asm-xtensa/semaphore.h b/include/asm-xtensa/semaphore.h
index db740b8bc6f..09e89ab3eb6 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);
 }
diff --git a/include/asm-xtensa/system.h b/include/asm-xtensa/system.h
index f09393232e5..9284867f1cb 100644
--- a/include/asm-xtensa/system.h
+++ b/include/asm-xtensa/system.h
@@ -189,20 +189,6 @@ static inline unsigned long xchg_u32(volatile int * m, unsigned long val)
 
 #define tas(ptr) (xchg((ptr),1))
 
-#if ( __XCC__ == 1 )
-
-/* xt-xcc processes __inline__ differently than xt-gcc and decides to
- * insert an out-of-line copy of function __xchg.  This presents the
- * unresolved symbol at link time of __xchg_called_with_bad_pointer,
- * even though such a function would never be called at run-time.
- * xt-gcc always inlines __xchg, and optimizes away the undefined
- * bad_pointer function.
- */
-
-#define xchg(ptr,x) xchg_u32(ptr,x)
-
-#else  /* assume xt-gcc */
-
 #define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
 
 /*
@@ -224,8 +210,6 @@ __xchg(unsigned long x, volatile void * ptr, int size)
         return x;
 }
 
-#endif
-
 extern void set_except_vector(int n, void *addr);
 
 static inline void spill_registers(void)