iw_cxgb4: initialize ibdev.iwcm->ifname for port mapping

The IWCM uses ibdev.iwcm->ifname for registration with the iwarp
port map daemon.  But iw_cxgb4 did not initialize this field which
causes intermittent registration failures based on the contents of the
uninitialized memory.

Fixes: 170003c894d9 ("iw_cxgb4: remove port mapper related code")
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

diff --git a/drivers/infiniband/hw/cxgb4/provider.c b/drivers/infiniband/hw/cxgb4/provider.c
index 124682dc57094cfb3970167bf2172863e4f7e0f5..7574f394fdac892856f9e7e7f98d3d112dc321b1 100644 (file)
--- a/drivers/infiniband/hw/cxgb4/provider.c
+++ b/drivers/infiniband/hw/cxgb4/provider.c
@@ -580,6 +580,8 @@ int c4iw_register_device(struct c4iw_dev *dev)
        dev->ibdev.iwcm->add_ref = c4iw_qp_add_ref;
        dev->ibdev.iwcm->rem_ref = c4iw_qp_rem_ref;
        dev->ibdev.iwcm->get_qp = c4iw_get_qp;
+       memcpy(dev->ibdev.iwcm->ifname, dev->rdev.lldi.ports[0]->name,
+              sizeof(dev->ibdev.iwcm->ifname));
 
        ret = ib_register_device(&dev->ibdev, NULL);
        if (ret)