> > I suppose it could be, since family IDs are allocated in a 16-bit > > range > > anyway. But family IDs can also never actually be negative, so > > having > > an unsigned int in the struct makes sense too. > > All idr_* API's accept int, rather than unsigned int. This is my > point.
Sure, but that's an internal implementation detail. The struct genl_family is also an external API towards its users, and there negative numbers make no sense whatsoever. johannes
