mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-21 11:44:01 +08:00
27 lines
702 B
C
27 lines
702 B
C
|
#ifndef _ASM_GENERIC_UACCESS_H_
|
||
|
|
#define _ASM_GENERIC_UACCESS_H_
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This macro should be used instead of __get_user() when accessing
|
||
|
|
* values at locations that are not known to be aligned.
|
||
|
|
*/
|
||
|
|
#define __get_user_unaligned(x, ptr) \
|
||
|
|
({ \
|
||
|
|
__typeof__ (*(ptr)) __x; \
|
||
|
|
__copy_from_user(&__x, (ptr), sizeof(*(ptr))) ? -EFAULT : 0; \
|
||
|
|
(x) = __x; \
|
||
|
|
})
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This macro should be used instead of __put_user() when accessing
|
||
|
|
* values at locations that are not known to be aligned.
|
||
|
|
*/
|
||
|
|
#define __put_user_unaligned(x, ptr) \
|
||
|
|
({ \
|
||
|
|
__typeof__ (*(ptr)) __x = (x); \
|
||
|
|
__copy_to_user((ptr), &__x, sizeof(*(ptr))) ? -EFAULT : 0; \
|
||
|
|
})
|
||
|
|
|
||
|
|
#endif /* _ASM_GENERIC_UACCESS_H */
|