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 */ 27