238 extern unsigned long __must_check __copy_user (void __user *to, const void __user *from,
242 __copy_to_user (void __user *to, const void *from, unsigned long count)  in __copy_to_user()  argument
244 	return __copy_user(to, (__force void __user *) from, count);  in __copy_to_user()
248 __copy_from_user (void *to, const void __user *from, unsigned long count)  in __copy_from_user()  argument
250 	return __copy_user((__force void __user *) to, from, count);  in __copy_from_user()
255 #define copy_to_user(to, from, n)							\  argument
258 	const void *__cu_from = (from);							\
266 #define copy_from_user(to, from, n)							\  argument
269 	const void __user *__cu_from = (from);						\
278 #define __copy_in_user(to, from, size)	__copy_user((to), (from), (size))  argument
281 copy_in_user (void __user *to, const void __user *from, unsigned long n)  in copy_in_user()  argument
283 	if (likely(access_ok(VERIFY_READ, from, n) && access_ok(VERIFY_WRITE, to, n)))  in copy_in_user()
284 		n = __copy_user(to, from, n);  in copy_in_user()
305 extern long __must_check __strncpy_from_user (char *to, const char __user *from, long to_len);
307 #define strncpy_from_user(to, from, n)					\  argument
309 	const char __user * __sfu_from = (from);			\