aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-cris/uaccess.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-cris/uaccess.h')
-rw-r--r--include/asm-cris/uaccess.h53
1 files changed, 9 insertions, 44 deletions
diff --git a/include/asm-cris/uaccess.h b/include/asm-cris/uaccess.h
index 69d48a2dc8e1..ea11eaf0e922 100644
--- a/include/asm-cris/uaccess.h
+++ b/include/asm-cris/uaccess.h
@@ -1,43 +1,6 @@
1/* 1/*
2 * Authors: Bjorn Wesen (bjornw@axis.com) 2 * Authors: Bjorn Wesen (bjornw@axis.com)
3 * Hans-Peter Nilsson (hp@axis.com) 3 * Hans-Peter Nilsson (hp@axis.com)
4 *
5 * $Log: uaccess.h,v $
6 * Revision 1.8 2001/10/29 13:01:48 bjornw
7 * Removed unused variable tmp2 in strnlen_user
8 *
9 * Revision 1.7 2001/10/02 12:44:52 hp
10 * Add support for 64-bit put_user/get_user
11 *
12 * Revision 1.6 2001/10/01 14:51:17 bjornw
13 * Added register prefixes and removed underscores
14 *
15 * Revision 1.5 2000/10/25 03:33:21 hp
16 * - Provide implementation for everything else but get_user and put_user;
17 * copying inline to/from user for constant length 0..16, 20, 24, and
18 * clearing for 0..4, 8, 12, 16, 20, 24, strncpy_from_user and strnlen_user
19 * always inline.
20 * - Constraints for destination addr in get_user cannot be memory, only reg.
21 * - Correct labels for PC at expected fault points.
22 * - Nits with assembly code.
23 * - Don't use statement expressions without value; use "do {} while (0)".
24 * - Return correct values from __generic_... functions.
25 *
26 * Revision 1.4 2000/09/12 16:28:25 bjornw
27 * * Removed comments from the get/put user asm code
28 * * Constrains for destination addr in put_user cannot be memory, only reg
29 *
30 * Revision 1.3 2000/09/12 14:30:20 bjornw
31 * MAX_ADDR_USER does not exist anymore
32 *
33 * Revision 1.2 2000/07/13 15:52:48 bjornw
34 * New user-access functions
35 *
36 * Revision 1.1.1.1 2000/07/10 16:32:31 bjornw
37 * CRIS architecture, working draft
38 *
39 *
40 *
41 */ 4 */
42 5
43/* Asm:s have been tweaked (within the domain of correctness) to give 6/* Asm:s have been tweaked (within the domain of correctness) to give
@@ -209,9 +172,9 @@ extern long __get_user_bad(void);
209/* More complex functions. Most are inline, but some call functions that 172/* More complex functions. Most are inline, but some call functions that
210 live in lib/usercopy.c */ 173 live in lib/usercopy.c */
211 174
212extern unsigned long __copy_user(void *to, const void *from, unsigned long n); 175extern unsigned long __copy_user(void __user *to, const void *from, unsigned long n);
213extern unsigned long __copy_user_zeroing(void *to, const void *from, unsigned long n); 176extern unsigned long __copy_user_zeroing(void *to, const void __user *from, unsigned long n);
214extern unsigned long __do_clear_user(void *to, unsigned long n); 177extern unsigned long __do_clear_user(void __user *to, unsigned long n);
215 178
216static inline unsigned long 179static inline unsigned long
217__generic_copy_to_user(void __user *to, const void *from, unsigned long n) 180__generic_copy_to_user(void __user *to, const void *from, unsigned long n)
@@ -253,7 +216,7 @@ strncpy_from_user(char *dst, const char __user *src, long count)
253} 216}
254 217
255 218
256/* Note that if these expand awfully if made into switch constructs, so 219/* Note that these expand awfully if made into switch constructs, so
257 don't do that. */ 220 don't do that. */
258 221
259static inline unsigned long 222static inline unsigned long
@@ -407,19 +370,21 @@ __constant_clear_user(void __user *to, unsigned long n)
407 */ 370 */
408 371
409static inline unsigned long 372static inline unsigned long
410__generic_copy_from_user_nocheck(void *to, const void *from, unsigned long n) 373__generic_copy_from_user_nocheck(void *to, const void __user *from,
374 unsigned long n)
411{ 375{
412 return __copy_user_zeroing(to,from,n); 376 return __copy_user_zeroing(to,from,n);
413} 377}
414 378
415static inline unsigned long 379static inline unsigned long
416__generic_copy_to_user_nocheck(void *to, const void *from, unsigned long n) 380__generic_copy_to_user_nocheck(void __user *to, const void *from,
381 unsigned long n)
417{ 382{
418 return __copy_user(to,from,n); 383 return __copy_user(to,from,n);
419} 384}
420 385
421static inline unsigned long 386static inline unsigned long
422__generic_clear_user_nocheck(void *to, unsigned long n) 387__generic_clear_user_nocheck(void __user *to, unsigned long n)
423{ 388{
424 return __do_clear_user(to,n); 389 return __do_clear_user(to,n);
425} 390}