>
> If you can think of a way to add some invariants (warn the first time
> a driver receives a packet without having ever set the link state,
> make sure the media status callback sets the valid flag in the
> request, etc) that would probably be very helpful for people who are
> writing network drivers.  If I hadn't been following the threads about
> your changes, I would have had to spend much longer fixing the Octeon
> port's Ethernet driver, wondering why suddenly it broke and
> instrumenting the routing code.  A printf would go a long way.
>

  You definitely have a very good point here.  I was a bit surprised
  during debugging that the link state is not consistently initialized
  and by far not enforced across all of the drivers. Admittedly I checked
  the most commonly deployed devices and they are in good state.

  I certainly appreciate your patience on this one and will try to get
  it resolved quickly.

  -- Qing
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