RDMA: Move driver_id into struct ib_device_ops

No reason for every driver to emit code to set this, just make it part of
the driver's existing static const ops structure.

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/sw/rdmavt/vt.c

@@ -530,7 +530,7 @@ static noinline int check_support(struct rvt_dev_info *rdi, int verb)
  *
  * Return: 0 on success otherwise an errno.
  */
-int rvt_register_device(struct rvt_dev_info *rdi, u32 driver_id)
+int rvt_register_device(struct rvt_dev_info *rdi)
 {
 	int ret = 0, i;
 
@@ -636,7 +636,6 @@ int rvt_register_device(struct rvt_dev_info *rdi, u32 driver_id)
 	if (!rdi->ibdev.num_comp_vectors)
 		rdi->ibdev.num_comp_vectors = 1;
 
-	rdi->ibdev.driver_id = driver_id;
 	/* We are now good to announce we exist */
 	ret = ib_register_device(&rdi->ibdev, dev_name(&rdi->ibdev.dev));
 	if (ret) {

drivers/infiniband/sw/rxe/rxe_verbs.c

@@ -1111,6 +1111,8 @@ static int rxe_enable_driver(struct ib_device *ib_dev)
 }
 
 static const struct ib_device_ops rxe_dev_ops = {
+	.driver_id = RDMA_DRIVER_RXE,
+
 	.alloc_hw_stats = rxe_ib_alloc_hw_stats,
 	.alloc_mr = rxe_alloc_mr,
 	.alloc_pd = rxe_alloc_pd,
@@ -1230,7 +1232,6 @@ int rxe_register_device(struct rxe_dev *rxe, const char *ibdev_name)
 	rxe->tfm = tfm;
 
 	rdma_set_device_sysfs_group(dev, &rxe_attr_group);
-	dev->driver_id = RDMA_DRIVER_RXE;
 	err = ib_register_device(dev, ibdev_name);
 	if (err)
 		pr_warn("%s failed with error %d\n", __func__, err);