iw_cxgb3: initialize ibdev.iwcm->ifname for port mapping

The IWCM uses ibdev.iwcm->ifname for registration with the iwarp
port map daemon.  But iw_cxgb3 did not initialize this field which
causes intermittent registration failures based on the contents of the
uninitialized memory.

Fixes: c1340e8aa628 ("iw_cxgb3: support for iWARP port mapping")
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c
index 42a7b8952d13241e40b531dc9959f3405f3a62a6..3234a8be16f6c53e4d155920cb766236b0f74306 100644 (file)
--- a/drivers/infiniband/hw/cxgb3/iwch_provider.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c
@@ -1390,6 +1390,8 @@ int iwch_register_device(struct iwch_dev *dev)
        dev->ibdev.iwcm->add_ref = iwch_qp_add_ref;
        dev->ibdev.iwcm->rem_ref = iwch_qp_rem_ref;
        dev->ibdev.iwcm->get_qp = iwch_get_qp;
+       memcpy(dev->ibdev.iwcm->ifname, dev->rdev.t3cdev_p->lldev->name,
+              sizeof(dev->ibdev.iwcm->ifname));
 
        ret = ib_register_device(&dev->ibdev, NULL);
        if (ret)