// SPDX-License-Identifier: GPL-2.0-only/* * OCB mode implementation * * Copyright: (c) 2014 Czech Technical University in Prague *            (c) 2014 Volkswagen Group Research * Copyright (C) 2022-2023 Intel Corporation * Author:    Rostislav Lisovy <rostislav.lisovy@fel.cvut.cz> * Funded by: Volkswagen Group Research */ #include <linux/ieee80211.h>#include <net/cfg80211.h>#include "nl80211.h"#include "core.h"#include "rdev-ops.h" int cfg80211_join_ocb(struct cfg80211_registered_device *rdev,		      struct net_device *dev,		      struct ocb_setup *setup){	struct wireless_dev *wdev = dev->ieee80211_ptr;	int err; 	lockdep_assert_wiphy(wdev->wiphy); 	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)		return -EOPNOTSUPP; 	if (!rdev->ops->join_ocb)		return -EOPNOTSUPP; 	if (WARN_ON(!setup->chandef.chan))		return -EINVAL; 	err = rdev_join_ocb(rdev, dev, setup);	if (!err)		wdev->u.ocb.chandef = setup->chandef; 	return err;} int cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,		       struct net_device *dev){	struct wireless_dev *wdev = dev->ieee80211_ptr;	int err; 	lockdep_assert_wiphy(wdev->wiphy); 	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)		return -EOPNOTSUPP; 	if (!rdev->ops->leave_ocb)		return -EOPNOTSUPP; 	if (!wdev->u.ocb.chandef.chan)		return -ENOTCONN; 	err = rdev_leave_ocb(rdev, dev);	if (!err)		memset(&wdev->u.ocb.chandef, 0, sizeof(wdev->u.ocb.chandef)); 	return err;}