[ofa-general] [PATCH] IB/IPoIB: Don't let a bad muticast address in the join list stop subsequent joins

[Moni Shoua]

> 
> Wouldn't it make more sense to fix the bonding device or core networking
> (wherever the problem is) so that it recomputes the multicast list when
> the bonding hardware type changes?  After this patch, do we end up with
> an IPoIB interface that's not a member of the all hosts multicast group?
> (That seems like it would lead to confusing breakage later)
> 
>  - R.

Roland,
I took your advice and sent a patch to bonding to fix the issue there to which I
am waiting for comment) but I still think the patch for IPoIB is still needed.
Without it, IPoIB is exposed to a DoS attack by a module (that looks like bonding but 
with malicious intentions) that sends IPoIB a garbage multicast address and stops it from
joining any other group for ever, even if it is a legal group.
What do you think?

thanks