[PATCH] xtensa: remove verify_area macros

verify_area() is still alive on xtensa in 2.6.17-rc3-git13 It would be nice
to finally be rid of that function across the board.

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

3 files changed, 7 insertions, 37 deletions

diff --git a/include/asm-xtensa/checksum.h b/include/asm-xtensa/checksum.h
index bdc00ae9be..03114f8d1e 100644
--- a/include/asm-xtensa/checksum.h
+++ b/include/asm-xtensa/checksum.h
@@ -43,8 +43,7 @@ asmlinkage unsigned int csum_partial_copy_generic( const char *src, char *dst, i
  *      Note: when you get a NULL pointer exception here this means someone
  *      passed in an incorrect kernel address to one of these functions.
  *
- *      If you use these functions directly please don't forget the
- *      verify_area().
+ *      If you use these functions directly please don't forget the access_ok().
  */
 static inline
 unsigned int csum_partial_copy_nocheck ( const char *src, char *dst,
diff --git a/include/asm-xtensa/rwsem.h b/include/asm-xtensa/rwsem.h
index 3c02b0e033..abcd86dc5a 100644
--- a/include/asm-xtensa/rwsem.h
+++ b/include/asm-xtensa/rwsem.h
@@ -172,4 +172,9 @@ static inline int rwsem_atomic_update(int delta, struct rw_semaphore *sem)
         return atomic_add_return(delta, (atomic_t *)(&sem->count));
 }
 
-#endif  /* _XTENSA_RWSEM_XADD_H */
+static inline int rwsem_is_locked(struct rw_semaphore *sem)
+{
+        return (sem->count != 0);
+}
+
+#endif  /* _XTENSA_RWSEM_H */
diff --git a/include/asm-xtensa/uaccess.h b/include/asm-xtensa/uaccess.h
index 06a22b83ba..88a64e1144 100644
--- a/include/asm-xtensa/uaccess.h
+++ b/include/asm-xtensa/uaccess.h
@@ -154,35 +154,6 @@
 .Laccess_ok_\@:
         .endm
 
-/*
- * verify_area determines whether a memory access is allowed.  It's
- * mostly an unnecessary wrapper for access_ok, but we provide it as a
- * duplicate of the verify_area() C inline function below.  See the
- * equivalent C version below for clarity.
- *
- * On error, verify_area branches to a label indicated by parameter
- * <error>.  This implies that the macro falls through to the next
- * instruction on success.
- *
- * Note that we assume success is the common case, and we optimize the
- * branch fall-through case on success.
- *
- * On Entry:
- *      <aa>    register containing memory address
- *      <as>    register containing memory size
- *      <at>    temp register
- *      <error> label to branch to on error; implies fall-through
- *              macro on success
- * On Exit:
- *      <aa>    preserved
- *      <as>    preserved
- *      <at>    destroyed
- */
-        .macro  verify_area     aa, as, at, sp, error
-        access_ok  \at, \aa, \as, \sp, \error
-        .endm
-
-
 #else /* __ASSEMBLY__ not defined */
 
 #include <linux/sched.h>
@@ -211,11 +182,6 @@
 #define __access_ok(addr,size) (__kernel_ok || __user_ok((addr),(size)))
 #define access_ok(type,addr,size) __access_ok((unsigned long)(addr),(size))
 
-static inline int verify_area(int type, const void * addr, unsigned long size)
-{
-        return access_ok(type,addr,size) ? 0 : -EFAULT;
-}
-
 /*
  * These are the main single-value transfer routines.  They
  * automatically use the right size if we just have the right pointer