[openib-general] IPoIB and MC Group leaving

[Roland Dreier]

 > This is to make sure node is not registered in any groups. This leave
 > may not be successful. Failure is "normal" when the subnet is starting
 > up "fresh". There are other cases where the failure is indeed a failure.

As far as I know, IPoIB will not leave a group unless it thinks it has
joined the group.  What is the code path for a "preemptive" leave?

 - R.