RDMA/cma: Only listen on IB devices when using AF_IB

If an rdma_cm_id is bound to AF_IB, with a wild card address, only
listen on IB devices.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 96d0b9a6e15e..6a0ee9265015 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -1616,6 +1616,10 @@ static void cma_listen_on_dev(struct rdma_id_private *id_priv,
         struct rdma_cm_id *id;
         int ret;
 
+        if (cma_family(id_priv) == AF_IB &&
+            rdma_node_get_transport(cma_dev->device->node_type) != RDMA_TRANSPORT_IB)
+                return;
+
         id = rdma_create_id(cma_listen_handler, id_priv, id_priv->id.ps,
                             id_priv->id.qp_type);
         if (IS_ERR(id))