357 	void __user *to, const void *from, unsigned long n);
360 __copy_to_user(void __user *to, const void *from, unsigned long n)  in __copy_to_user()  argument
363 	return __copy_to_user_inatomic(to, from, n);  in __copy_to_user()
367 copy_to_user(void __user *to, const void *from, unsigned long n)  in copy_to_user()  argument
369 	if (access_ok(VERIFY_WRITE, to, n))  in copy_to_user()
370 		n = __copy_to_user(to, from, n);  in copy_to_user()
371 	return n;  in copy_to_user()
398 	void *to, const void __user *from, unsigned long n);
400 	void *to, const void __user *from, unsigned long n);
403 __copy_from_user(void *to, const void __user *from, unsigned long n)  in __copy_from_user()  argument
406        return __copy_from_user_zeroing(to, from, n);  in __copy_from_user()
410 _copy_from_user(void *to, const void __user *from, unsigned long n)  in _copy_from_user()  argument
412 	if (access_ok(VERIFY_READ, from, n))  in _copy_from_user()
413 		n = __copy_from_user(to, from, n);  in _copy_from_user()
415 		memset(to, 0, n);  in _copy_from_user()
416 	return n;  in _copy_from_user()
430 					  unsigned long n)  in copy_from_user()  argument
434 	if (likely(sz == -1 || sz >= n))  in copy_from_user()
435 		n = _copy_from_user(to, from, n);  in copy_from_user()
439 	return n;  in copy_from_user()
462 	void __user *to, const void __user *from, unsigned long n);
465 __copy_in_user(void __user *to, const void __user *from, unsigned long n)  in __copy_in_user()  argument
468 	return __copy_in_user_inatomic(to, from, n);  in __copy_in_user()
472 copy_in_user(void __user *to, const void __user *from, unsigned long n)  in copy_in_user()  argument
474 	if (access_ok(VERIFY_WRITE, to, n) && access_ok(VERIFY_READ, from, n))  in copy_in_user()
475 		n = __copy_in_user(to, from, n);  in copy_in_user()
476 	return n;  in copy_in_user()
481 extern long strnlen_user(const char __user *str, long n);