diff options
author | Magnus Damm <magnus.damm@gmail.com> | 2008-02-07 05:50:52 -0500 |
---|---|---|
committer | Paul Mundt <lethal@linux-sh.org> | 2008-02-14 00:22:09 -0500 |
commit | 1e6760c5c4589d02a6877fb256b99c33dd8f1ede (patch) | |
tree | 7da4be750339a538da9535c38ccdd8e69be61bdf /include/asm-sh/uaccess_32.h | |
parent | 960c65e88452e761e257c6a20062c91c3e7fa5ac (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.h | 24 |
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) ({ \ | ||
306 | void *__copy_to = (void *) (to); \ | ||
307 | __kernel_size_t __copy_size = (__kernel_size_t) (n); \ | ||
308 | __kernel_size_t __copy_res; \ | ||
309 | if(__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) ({ \ | ||
315 | void *__copy_to = (void *) (to); \ | ||
316 | void *__copy_from = (void *) (from); \ | ||
317 | __kernel_size_t __copy_size = (__kernel_size_t) (n); \ | ||
318 | __kernel_size_t __copy_res; \ | ||
319 | if(__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 | ||
324 | static __always_inline unsigned long | 306 | static __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 | ||
508 | extern int fixup_exception(struct pt_regs *regs); | 490 | extern int fixup_exception(struct pt_regs *regs); |
509 | 491 | ||
510 | #endif /* __ASM_SH_UACCESS_H */ | 492 | #endif /* __ASM_SH_UACCESS_32_H */ |