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[zen-stable.git] / include / asm-generic / uaccess-unaligned.h
blob67deb898f0c5d939e7e825bc53003f7cfa7455b0
1 #ifndef __ASM_GENERIC_UACCESS_UNALIGNED_H
2 #define __ASM_GENERIC_UACCESS_UNALIGNED_H
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; \
17 * This macro should be used instead of __put_user() when accessing
18 * values at locations that are not known to be aligned.
20 #define __put_user_unaligned(x, ptr) \
21 ({ \
22 __typeof__ (*(ptr)) __x = (x); \
23 __copy_to_user((ptr), &__x, sizeof(*(ptr))) ? -EFAULT : 0; \
26 #endif /* __ASM_GENERIC_UACCESS_UNALIGNED_H */