Looking at some network drivers I've observed that the processing of
SIOCSIFADDR, SIOCGIFADDR, and SIOCSIFMTU are very similar
in most drivers.  Why don't we do what FreeBSD and OpenBSD have done
and break out that code into a subroutine that can be called?

(Philosophical remark: I think the ease of cut&paste these days have
made people think less of proper abstractions.)


--

        -- Lennart