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[PATCH] xtensa: remove verify_area macros

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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>
This commit is contained in:
Jesper Juhl
2006-06-23 02:05:04 -07:00
committed by Linus Torvalds
parent 6f36d17a87
commit b9e122c80c
6 changed files with 13 additions and 47 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/asm-xtensa/checksum.h
+1 -2
View File
@@ -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,
include/asm-xtensa/rwsem.h
+6 -1
View File
@@ -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 */
include/asm-xtensa/uaccess.h
-34
View File
@@ -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