[openib-general] IPoIB: Waiting for ib0 to become free

[Roland Dreier]

    Hal> dev/core.c netdev_wait_allrefs says: * Any protocol or device
    Hal> that holds a reference should register * for netdevice
    Hal> notification, and cleanup and put back the * reference if
    Hal> they receive an UNREGISTER event.

    Hal> Is it correct that IPoIB does not need to register for these
    Hal> events ? If it is, then this must be something else which is
    Hal> using the IPoIB driver causing the reference count to be
    Hal> incremented but not handling these events. Troy, any idea on
    Hal> how to recreate this ?

IPoIB doesn't need to handle these events, since it is the one doing
the unregistering.

 - R.