Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | #ifndef _ASM_GENERIC_UACCESS_H_ |
2 | #define _ASM_GENERIC_UACCESS_H_ | |
3 | ||
4 | /* | |
5 | * This macro should be used instead of __get_user() when accessing | |
6 | * values at locations that are not known to be aligned. | |
7 | */ | |
8 | #define __get_user_unaligned(x, ptr) \ | |
9 | ({ \ | |
10 | __typeof__ (*(ptr)) __x; \ | |
11 | __copy_from_user(&__x, (ptr), sizeof(*(ptr))) ? -EFAULT : 0; \ | |
12 | (x) = __x; \ | |
13 | }) | |
14 | ||
15 | ||
16 | /* | |
17 | * This macro should be used instead of __put_user() when accessing | |
18 | * values at locations that are not known to be aligned. | |
19 | */ | |
20 | #define __put_user_unaligned(x, ptr) \ | |
21 | ({ \ | |
22 | __typeof__ (*(ptr)) __x = (x); \ | |
23 | __copy_to_user((ptr), &__x, sizeof(*(ptr))) ? -EFAULT : 0; \ | |
24 | }) | |
25 | ||
26 | #endif /* _ASM_GENERIC_UACCESS_H */ |