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s390/uaccess: Move put_user() / __put_user() close to put_user() asm code

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Keep put_user() and get_user() code separated.

Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
This commit is contained in:
Heiko Carstens
2025-01-13 13:37:01 +01:00
committed by Alexander Gordeev
parent c7474da9fe
commit 5e680e265f
1 changed files with 30 additions and 30 deletions
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60
arch/s390/include/asm/uaccess.h
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@@ -160,6 +160,36 @@ static __always_inline int __put_user_fn(void *x, void __user *ptr, unsigned lon
return rc;
}
/*
* These are the main single-value transfer routines. They automatically
* use the right size if we just have the right pointer type.
*/
#define __put_user(x, ptr) \
({ \
__typeof__(*(ptr)) __x = (x); \
int __pu_err = -EFAULT; \
\
__chk_user_ptr(ptr); \
switch (sizeof(*(ptr))) { \
case 1: \
case 2: \
case 4: \
case 8: \
__pu_err = __put_user_fn(&__x, ptr, sizeof(*(ptr))); \
break; \
default: \
__put_user_bad(); \
break; \
} \
__builtin_expect(__pu_err, 0); \
})
#define put_user(x, ptr) \
({ \
might_fault(); \
__put_user(x, ptr); \
})
int __noreturn __get_user_bad(void);
#define DEFINE_GET_USER(type) \
@@ -237,36 +267,6 @@ static __always_inline int __get_user_fn(void *x, const void __user *ptr, unsign
return rc;
}
/*
* These are the main single-value transfer routines. They automatically
* use the right size if we just have the right pointer type.
*/
#define __put_user(x, ptr) \
({ \
__typeof__(*(ptr)) __x = (x); \
int __pu_err = -EFAULT; \
\
__chk_user_ptr(ptr); \
switch (sizeof(*(ptr))) { \
case 1: \
case 2: \
case 4: \
case 8: \
__pu_err = __put_user_fn(&__x, ptr, sizeof(*(ptr))); \
break; \
default: \
__put_user_bad(); \
break; \
} \
__builtin_expect(__pu_err, 0); \
})
#define put_user(x, ptr) \
({ \
might_fault(); \
__put_user(x, ptr); \
})
#define __get_user(x, ptr) \
({ \
int __gu_err = -EFAULT; \