Release 4.12 include/asm-generic/uaccess-unaligned.h

#ifndef __ASM_GENERIC_UACCESS_UNALIGNED_H

#define __ASM_GENERIC_UACCESS_UNALIGNED_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_UNALIGNED_H */
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Arun Sharma
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Arnd Bergmann
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David S. Miller
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Directory: include/asm-generic

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