aboutsummaryrefslogtreecommitdiffstats
path: root/arch/s390/lib/uaccess_std.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/s390/lib/uaccess_std.c')
-rw-r--r--arch/s390/lib/uaccess_std.c23
1 files changed, 12 insertions, 11 deletions
diff --git a/arch/s390/lib/uaccess_std.c b/arch/s390/lib/uaccess_std.c
index 56a0214e9928..28c4500a58d0 100644
--- a/arch/s390/lib/uaccess_std.c
+++ b/arch/s390/lib/uaccess_std.c
@@ -13,6 +13,7 @@
13#include <linux/mm.h> 13#include <linux/mm.h>
14#include <linux/uaccess.h> 14#include <linux/uaccess.h>
15#include <asm/futex.h> 15#include <asm/futex.h>
16#include "uaccess.h"
16 17
17#ifndef __s390x__ 18#ifndef __s390x__
18#define AHI "ahi" 19#define AHI "ahi"
@@ -28,9 +29,6 @@
28#define SLR "slgr" 29#define SLR "slgr"
29#endif 30#endif
30 31
31extern size_t copy_from_user_pt(size_t n, const void __user *from, void *to);
32extern size_t copy_to_user_pt(size_t n, void __user *to, const void *from);
33
34size_t copy_from_user_std(size_t size, const void __user *ptr, void *x) 32size_t copy_from_user_std(size_t size, const void __user *ptr, void *x)
35{ 33{
36 unsigned long tmp1, tmp2; 34 unsigned long tmp1, tmp2;
@@ -72,7 +70,8 @@ size_t copy_from_user_std(size_t size, const void __user *ptr, void *x)
72 return size; 70 return size;
73} 71}
74 72
75size_t copy_from_user_std_check(size_t size, const void __user *ptr, void *x) 73static size_t copy_from_user_std_check(size_t size, const void __user *ptr,
74 void *x)
76{ 75{
77 if (size <= 1024) 76 if (size <= 1024)
78 return copy_from_user_std(size, ptr, x); 77 return copy_from_user_std(size, ptr, x);
@@ -110,14 +109,16 @@ size_t copy_to_user_std(size_t size, void __user *ptr, const void *x)
110 return size; 109 return size;
111} 110}
112 111
113size_t copy_to_user_std_check(size_t size, void __user *ptr, const void *x) 112static size_t copy_to_user_std_check(size_t size, void __user *ptr,
113 const void *x)
114{ 114{
115 if (size <= 1024) 115 if (size <= 1024)
116 return copy_to_user_std(size, ptr, x); 116 return copy_to_user_std(size, ptr, x);
117 return copy_to_user_pt(size, ptr, x); 117 return copy_to_user_pt(size, ptr, x);
118} 118}
119 119
120size_t copy_in_user_std(size_t size, void __user *to, const void __user *from) 120static size_t copy_in_user_std(size_t size, void __user *to,
121 const void __user *from)
121{ 122{
122 unsigned long tmp1; 123 unsigned long tmp1;
123 124
@@ -148,7 +149,7 @@ size_t copy_in_user_std(size_t size, void __user *to, const void __user *from)
148 return size; 149 return size;
149} 150}
150 151
151size_t clear_user_std(size_t size, void __user *to) 152static size_t clear_user_std(size_t size, void __user *to)
152{ 153{
153 unsigned long tmp1, tmp2; 154 unsigned long tmp1, tmp2;
154 155
@@ -254,7 +255,7 @@ size_t strncpy_from_user_std(size_t size, const char __user *src, char *dst)
254 : "0" (-EFAULT), "d" (oparg), "a" (uaddr), \ 255 : "0" (-EFAULT), "d" (oparg), "a" (uaddr), \
255 "m" (*uaddr) : "cc"); 256 "m" (*uaddr) : "cc");
256 257
257int futex_atomic_op(int op, int __user *uaddr, int oparg, int *old) 258int futex_atomic_op_std(int op, int __user *uaddr, int oparg, int *old)
258{ 259{
259 int oldval = 0, newval, ret; 260 int oldval = 0, newval, ret;
260 261
@@ -286,7 +287,7 @@ int futex_atomic_op(int op, int __user *uaddr, int oparg, int *old)
286 return ret; 287 return ret;
287} 288}
288 289
289int futex_atomic_cmpxchg(int __user *uaddr, int oldval, int newval) 290int futex_atomic_cmpxchg_std(int __user *uaddr, int oldval, int newval)
290{ 291{
291 int ret; 292 int ret;
292 293
@@ -311,6 +312,6 @@ struct uaccess_ops uaccess_std = {
311 .clear_user = clear_user_std, 312 .clear_user = clear_user_std,
312 .strnlen_user = strnlen_user_std, 313 .strnlen_user = strnlen_user_std,
313 .strncpy_from_user = strncpy_from_user_std, 314 .strncpy_from_user = strncpy_from_user_std,
314 .futex_atomic_op = futex_atomic_op, 315 .futex_atomic_op = futex_atomic_op_std,
315 .futex_atomic_cmpxchg = futex_atomic_cmpxchg, 316 .futex_atomic_cmpxchg = futex_atomic_cmpxchg_std,
316}; 317};