tree d7f141cea824e428f099b75166e6a60874c1a9ce
parent a50df398cddf6b757bdbf30f5f0875982ef5c660
author Yossi Etigin <yosefe@Voltaire.COM> 1231817322 -0800
committer Roland Dreier <rolandd@cisco.com> 1231817322 -0800

IPoIB: Do not join broadcast group if interface is brought down

Because the ipoib_workqueue is not flushed when ipoib interface is
brought down, ipoib_mcast_join() may trigger a join to the broadcast
group after priv->broadcast was set to NULL (during cleanup).  This
will cause the system to be a member of the broadcast group when
interface is down.  As a side effect, this breaks the optimization of
setting the Q_key only when joining the broadcast group.

Signed-off-by: Yossi Etigin <yosefe@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>