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authorMagnus Damm <magnus.damm@gmail.com>2008-02-07 05:50:52 -0500
committerPaul Mundt <lethal@linux-sh.org>2008-02-14 00:22:09 -0500
commit1e6760c5c4589d02a6877fb256b99c33dd8f1ede (patch)
tree7da4be750339a538da9535c38ccdd8e69be61bdf /include/asm-sh/uaccess_32.h
parent960c65e88452e761e257c6a20062c91c3e7fa5ac (diff)
sh: make copy_to/from_user() static inline
This patch changes copy_from_user() and copy_to_user() from macros into static inline functions. This way we can use them as function pointers. Also unify the 64 bit and 32 bit versions. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'include/asm-sh/uaccess_32.h')
-rw-r--r--include/asm-sh/uaccess_32.h24
1 files changed, 3 insertions, 21 deletions
diff --git a/include/asm-sh/uaccess_32.h b/include/asm-sh/uaccess_32.h
index b6082f3c1dc4..c0318b608893 100644
--- a/include/asm-sh/uaccess_32.h
+++ b/include/asm-sh/uaccess_32.h
@@ -10,8 +10,8 @@
10 * Copyright (C) 1996, 1997, 1998 by Ralf Baechle 10 * Copyright (C) 1996, 1997, 1998 by Ralf Baechle
11 * and i386 version. 11 * and i386 version.
12 */ 12 */
13#ifndef __ASM_SH_UACCESS_H 13#ifndef __ASM_SH_UACCESS_32_H
14#define __ASM_SH_UACCESS_H 14#define __ASM_SH_UACCESS_32_H
15 15
16#include <linux/errno.h> 16#include <linux/errno.h>
17#include <linux/sched.h> 17#include <linux/sched.h>
@@ -302,24 +302,6 @@ extern void __put_user_unknown(void);
302/* Return the number of bytes NOT copied */ 302/* Return the number of bytes NOT copied */
303__kernel_size_t __copy_user(void *to, const void *from, __kernel_size_t n); 303__kernel_size_t __copy_user(void *to, const void *from, __kernel_size_t n);
304 304
305#define copy_to_user(to,from,n) ({ \
306void *__copy_to = (void *) (to); \
307__kernel_size_t __copy_size = (__kernel_size_t) (n); \
308__kernel_size_t __copy_res; \
309if(__copy_size && __access_ok((unsigned long)__copy_to, __copy_size)) { \
310__copy_res = __copy_user(__copy_to, (void *) (from), __copy_size); \
311} else __copy_res = __copy_size; \
312__copy_res; })
313
314#define copy_from_user(to,from,n) ({ \
315void *__copy_to = (void *) (to); \
316void *__copy_from = (void *) (from); \
317__kernel_size_t __copy_size = (__kernel_size_t) (n); \
318__kernel_size_t __copy_res; \
319if(__copy_size && __access_ok((unsigned long)__copy_from, __copy_size)) { \
320__copy_res = __copy_user(__copy_to, __copy_from, __copy_size); \
321} else __copy_res = __copy_size; \
322__copy_res; })
323 305
324static __always_inline unsigned long 306static __always_inline unsigned long
325__copy_from_user(void *to, const void __user *from, unsigned long n) 307__copy_from_user(void *to, const void __user *from, unsigned long n)
@@ -507,4 +489,4 @@ struct exception_table_entry
507 489
508extern int fixup_exception(struct pt_regs *regs); 490extern int fixup_exception(struct pt_regs *regs);
509 491
510#endif /* __ASM_SH_UACCESS_H */ 492#endif /* __ASM_SH_UACCESS_32_H */