tree 313f786f9f4d5fec3f016c292dea1705924fa9b6
parent e1701c68c1d1aeb3213d7016593ea9a1d4309417
author Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> 1174765936 -0700
committer David S. Miller <davem@sunset.davemloft.net> 1174873681 -0700

[NET]: Fix neighbour destructor handling.

->neigh_destructor() is killed (not used), replaced with
->neigh_cleanup(), which is called when neighbor entry goes to dead
state. At this point everything is still valid: neigh->dev,
neigh->parms etc.

The device should guarantee that dead neighbor entries (neigh->dead !=
0) do not get private part initialized, otherwise nobody will cleanup
it.

I think this is enough for ipoib which is the only user of this thing.
Initialization private part of neighbor entries happens in ipib
start_xmit routine, which is not reached when device is down.  But it
would be better to add explicit test for neigh->dead in any case.

Signed-off-by: David S. Miller <davem@davemloft.net>