> I got some more feedback from Roland off-list explaining that if /sys/
> class/infiniband does exist and is non-empty and /sys/class/
> infiniband_verbs/abi_version does not exist, then this is definitely a
> case where we want to warn because it implies that config is screwed
> up -- RDMA devices are present but not usable.
Is it possible that /sys/class/infiniband directory exist and it is
empty ? In which cases ?