netdevsim: move sdev-specific init/uninit code into separate functions

In order to improve readability and prepare for future code changes,
move sdev specific init/uninit code into separate functions.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/netdevsim/bpf.c b/drivers/net/netdevsim/bpf.c
index 2710d46..a93aafe 100644 (file)
--- a/drivers/net/netdevsim/bpf.c
+++ b/drivers/net/netdevsim/bpf.c
@@ -578,35 +578,51 @@ int nsim_bpf(struct net_device *dev, struct netdev_bpf *bpf)
        }
 }
 
-int nsim_bpf_init(struct netdevsim *ns)
+static int nsim_bpf_sdev_init(struct netdevsim_shared_dev *sdev)
 {
        int err;
 
-       if (ns->sdev->refcnt == 1) {
-               INIT_LIST_HEAD(&ns->sdev->bpf_bound_progs);
-               INIT_LIST_HEAD(&ns->sdev->bpf_bound_maps);
+       INIT_LIST_HEAD(&sdev->bpf_bound_progs);
+       INIT_LIST_HEAD(&sdev->bpf_bound_maps);
+
+       sdev->ddir_bpf_bound_progs =
+               debugfs_create_dir("bpf_bound_progs", sdev->ddir);
+       if (IS_ERR_OR_NULL(sdev->ddir_bpf_bound_progs))
+               return -ENOMEM;
+
+       sdev->bpf_dev = bpf_offload_dev_create(&nsim_bpf_dev_ops, sdev);
+       err = PTR_ERR_OR_ZERO(sdev->bpf_dev);
+       if (err)
+               return err;
+
+       sdev->bpf_bind_accept = true;
+       debugfs_create_bool("bpf_bind_accept", 0600, sdev->ddir,
+                           &sdev->bpf_bind_accept);
+       debugfs_create_u32("bpf_bind_verifier_delay", 0600, sdev->ddir,
+                          &sdev->bpf_bind_verifier_delay);
+       return 0;
+}
+
+static void nsim_bpf_sdev_uninit(struct netdevsim_shared_dev *sdev)
+{
+       WARN_ON(!list_empty(&sdev->bpf_bound_progs));
+       WARN_ON(!list_empty(&sdev->bpf_bound_maps));
+       bpf_offload_dev_destroy(sdev->bpf_dev);
+}
 
-               ns->sdev->ddir_bpf_bound_progs =
-                       debugfs_create_dir("bpf_bound_progs", ns->sdev->ddir);
-               if (IS_ERR_OR_NULL(ns->sdev->ddir_bpf_bound_progs))
-                       return -ENOMEM;
+int nsim_bpf_init(struct netdevsim *ns)
+{
+       int err;
 
-               ns->sdev->bpf_dev = bpf_offload_dev_create(&nsim_bpf_dev_ops,
-                                                          ns->sdev);
-               err = PTR_ERR_OR_ZERO(ns->sdev->bpf_dev);
+       if (ns->sdev->refcnt == 1) {
+               err = nsim_bpf_sdev_init(ns->sdev);
                if (err)
                        return err;
-
-               ns->sdev->bpf_bind_accept = true;
-               debugfs_create_bool("bpf_bind_accept", 0600, ns->sdev->ddir,
-                                   &ns->sdev->bpf_bind_accept);
-               debugfs_create_u32("bpf_bind_verifier_delay", 0600, ns->sdev->ddir,
-                                  &ns->sdev->bpf_bind_verifier_delay);
        }
 
        err = bpf_offload_dev_netdev_register(ns->sdev->bpf_dev, ns->netdev);
        if (err)
-               goto err_destroy_bdev;
+               goto err_bpf_sdev_uninit;
 
        debugfs_create_u32("bpf_offloaded_id", 0400, ns->ddir,
                           &ns->bpf_offloaded_id);
@@ -629,9 +645,9 @@ int nsim_bpf_init(struct netdevsim *ns)
 
        return 0;
 
-err_destroy_bdev:
+err_bpf_sdev_uninit:
        if (ns->sdev->refcnt == 1)
-               bpf_offload_dev_destroy(ns->sdev->bpf_dev);
+               nsim_bpf_sdev_uninit(ns->sdev);
        return err;
 }
 
@@ -642,9 +658,6 @@ void nsim_bpf_uninit(struct netdevsim *ns)
        WARN_ON(ns->bpf_offloaded);
        bpf_offload_dev_netdev_unregister(ns->sdev->bpf_dev, ns->netdev);
 
-       if (ns->sdev->refcnt == 1) {
-               WARN_ON(!list_empty(&ns->sdev->bpf_bound_progs));
-               WARN_ON(!list_empty(&ns->sdev->bpf_bound_maps));
-               bpf_offload_dev_destroy(ns->sdev->bpf_dev);
-       }
+       if (ns->sdev->refcnt == 1)
+               nsim_bpf_sdev_uninit(ns->sdev);
 }