: "0"(to), "1"(from), "2"(n/4) \
: "d0", "memory")
-#define __copy_to_user_inatomic __copy_to_user
-#define __copy_from_user_inatomic __copy_from_user
-
static inline unsigned long
__constant_copy_to_user(void *to, const void *from, unsigned long n)
{