diff options
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/uaccess.h | 61 |
1 files changed, 59 insertions, 2 deletions
diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h index 2ea7f32..9b49cf1 100644 --- a/arch/s390/include/asm/uaccess.h +++ b/arch/s390/include/asm/uaccess.h @@ -151,8 +151,65 @@ unsigned long __must_check __copy_to_user(void __user *to, const void *from, __rc; \ }) -#define __put_user_fn(x, ptr, size) __put_get_user_asm(ptr, x, size, 0x810000UL) -#define __get_user_fn(x, ptr, size) __put_get_user_asm(x, ptr, size, 0x81UL) +static inline int __put_user_fn(void *x, void __user *ptr, unsigned long size) +{ + unsigned long spec = 0x810000UL; + int rc; + + switch (size) { + case 1: + rc = __put_get_user_asm((unsigned char __user *)ptr, + (unsigned char *)x, + size, spec); + break; + case 2: + rc = __put_get_user_asm((unsigned short __user *)ptr, + (unsigned short *)x, + size, spec); + break; + case 4: + rc = __put_get_user_asm((unsigned int __user *)ptr, + (unsigned int *)x, + size, spec); + break; + case 8: + rc = __put_get_user_asm((unsigned long __user *)ptr, + (unsigned long *)x, + size, spec); + break; + }; + return rc; +} + +static inline int __get_user_fn(void *x, const void __user *ptr, unsigned long size) +{ + unsigned long spec = 0x81UL; + int rc; + + switch (size) { + case 1: + rc = __put_get_user_asm((unsigned char *)x, + (unsigned char __user *)ptr, + size, spec); + break; + case 2: + rc = __put_get_user_asm((unsigned short *)x, + (unsigned short __user *)ptr, + size, spec); + break; + case 4: + rc = __put_get_user_asm((unsigned int *)x, + (unsigned int __user *)ptr, + size, spec); + break; + case 8: + rc = __put_get_user_asm((unsigned long *)x, + (unsigned long __user *)ptr, + size, spec); + break; + }; + return rc; +} #else /* CONFIG_HAVE_MARCH_Z10_FEATURES */ |