+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0
-/* Copyright (c) 2019 Mellanox Technologies. All rights reserved */
-
-#include <linux/debugfs.h>
-#include <linux/err.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-
-#include "netdevsim.h"
-
-static struct dentry *nsim_sdev_ddir;
-
-static u32 nsim_sdev_id;
-
-struct netdevsim_shared_dev *nsim_sdev_get(struct netdevsim *joinns)
-{
- struct netdevsim_shared_dev *sdev;
- char sdev_ddir_name[10];
- int err;
-
- if (joinns) {
- if (WARN_ON(!joinns->sdev))
- return ERR_PTR(-EINVAL);
- sdev = joinns->sdev;
- sdev->refcnt++;
- return sdev;
- }
-
- sdev = kzalloc(sizeof(*sdev), GFP_KERNEL);
- if (!sdev)
- return ERR_PTR(-ENOMEM);
- sdev->refcnt = 1;
- sdev->switch_id = nsim_sdev_id++;
-
- sprintf(sdev_ddir_name, "%u", sdev->switch_id);
- sdev->ddir = debugfs_create_dir(sdev_ddir_name, nsim_sdev_ddir);
- if (IS_ERR_OR_NULL(sdev->ddir)) {
- err = PTR_ERR_OR_ZERO(sdev->ddir) ?: -EINVAL;
- goto err_sdev_free;
- }
-
- return sdev;
-
-err_sdev_free:
- nsim_sdev_id--;
- kfree(sdev);
- return ERR_PTR(err);
-}
-
-void nsim_sdev_put(struct netdevsim_shared_dev *sdev)
-{
- if (--sdev->refcnt)
- return;
- debugfs_remove_recursive(sdev->ddir);
- kfree(sdev);
-}
-
-int nsim_sdev_init(void)
-{
- nsim_sdev_ddir = debugfs_create_dir(DRV_NAME "_sdev", NULL);
- if (IS_ERR_OR_NULL(nsim_sdev_ddir))
- return -ENOMEM;
- return 0;
-}
-
-void nsim_sdev_exit(void)
-{
- debugfs_remove_recursive(nsim_sdev_ddir);
-}