1133312221 -0800 IB/uverbs: track multicast group membership for userspace QPs uverbs needs to track which multicast groups is each qp attached to, in order to properly detach when cleanup is performed on device file close. Signed-off-by: Jack Morgenstein Signed-off-by: Michael S. Tsirkin Signed-off-by: Roland Dreier ®ÓÇ(Ÿ x