user: i can't do this anymore

Living as a sheep herder on a lonely island is becoming an increasingly
appealing option the more i am exposed to my stupidity and inability
to memorize the return values of basic libc functions that i even
implemented myself two fucking months ago.

kernel/userspace.c

@@ -16,13 +16,13 @@
 size_t copy_from_user(void *dest, __user const void *src, size_t len)
 {
 	void *tmp = memcpy(dest, src, len);
-	return (size_t)tmp - (size_t)dest;
+	return len;
 }
 
 size_t copy_to_user(__user void *dest, const void *src, size_t len)
 {
 	void *tmp = memcpy(dest, src, len);
-	return (size_t)tmp - (size_t)dest;
+	return len;
 }
 
 /*