8 unsigned long _copy_from_user(void *to, const void __user *from, unsigned long n)  in _copy_from_user()  argument
10 	unsigned long res = n;  in _copy_from_user()
12 	if (likely(access_ok(from, n))) {  in _copy_from_user()
13 		kasan_check_write(to, n);  in _copy_from_user()
14 		res = raw_copy_from_user(to, from, n);  in _copy_from_user()
17 		memset(to + (n - res), 0, res);  in _copy_from_user()
24 unsigned long _copy_to_user(void __user *to, const void *from, unsigned long n)  in _copy_to_user()  argument
27 	if (likely(access_ok(to, n))) {  in _copy_to_user()
28 		kasan_check_read(from, n);  in _copy_to_user()
29 		n = raw_copy_to_user(to, from, n);  in _copy_to_user()
31 	return n;  in _copy_to_user()