From: "Michael S. Tsirkin" <mst@redhat.com>Date: Mon, 30 Nov 2015 11:15:23 +0200> We know vring num is a power of 2, so use &> to mask the high bits.> > Signed-off-by: Michael S. Tsirkin <mst@redhat.com>Acked-by: David S. Miller <davem@davemloft.net>