RDMA: Allow for NULL .modify_device() and .modify_port() methods

These methods don't make sense for iWARP devices, so rather than
forcing them to implement stubs, just return -ENOSYS in the core if
the hardware driver doesn't set .modify_device and/or .modify_port.

Signed-off-by: Roland Dreier <roland@purestorage.com>

1 files changed, 0 insertions, 8 deletions

diff --git a/drivers/infiniband/hw/cxgb4/provider.c b/drivers/infiniband/hw/cxgb4/provider.c
index 5b9e4220ca08..247fe706e7fa 100644
--- a/drivers/infiniband/hw/cxgb4/provider.c
+++ b/drivers/infiniband/hw/cxgb4/provider.c
@@ -58,13 +58,6 @@ static int fastreg_support = 1;
 module_param(fastreg_support, int, 0644);
 MODULE_PARM_DESC(fastreg_support, "Advertise fastreg support (default=1)");
 
-static int c4iw_modify_port(struct ib_device *ibdev,
-                            u8 port, int port_modify_mask,
-                            struct ib_port_modify *props)
-{
-        return -ENOSYS;
-}
-
 static struct ib_ah *c4iw_ah_create(struct ib_pd *pd,
                                     struct ib_ah_attr *ah_attr)
 {
@@ -456,7 +449,6 @@ int c4iw_register_device(struct c4iw_dev *dev)
         dev->ibdev.dma_device = &(dev->rdev.lldi.pdev->dev);
         dev->ibdev.query_device = c4iw_query_device;
         dev->ibdev.query_port = c4iw_query_port;
-        dev->ibdev.modify_port = c4iw_modify_port;
         dev->ibdev.query_pkey = c4iw_query_pkey;
         dev->ibdev.query_gid = c4iw_query_gid;
         dev->ibdev.alloc_ucontext = c4iw_alloc_ucontext;