// SPDX-License-Identifier: GPL-2.0/* * Parts of this file are * Copyright (C) 2022-2023 Intel Corporation */#include <linux/ieee80211.h>#include <linux/export.h>#include <net/cfg80211.h>#include "nl80211.h"#include "core.h"#include "rdev-ops.h"  static int ___cfg80211_stop_ap(struct cfg80211_registered_device *rdev,			       struct net_device *dev, unsigned int link_id,			       bool notify){	struct wireless_dev *wdev = dev->ieee80211_ptr;	int err; 	lockdep_assert_wiphy(wdev->wiphy); 	if (!rdev->ops->stop_ap)		return -EOPNOTSUPP; 	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)		return -EOPNOTSUPP; 	if (!wdev->links[link_id].ap.beacon_interval)		return -ENOENT; 	err = rdev_stop_ap(rdev, dev, link_id);	if (!err) {		wdev->conn_owner_nlportid = 0;		wdev->links[link_id].ap.beacon_interval = 0;		memset(&wdev->links[link_id].ap.chandef, 0,		       sizeof(wdev->links[link_id].ap.chandef));		wdev->u.ap.ssid_len = 0;		rdev_set_qos_map(rdev, dev, NULL);		if (notify)			nl80211_send_ap_stopped(wdev, link_id); 		/* Should we apply the grace period during beaconing interface		 * shutdown also?		 */		cfg80211_sched_dfs_chan_update(rdev);	} 	schedule_work(&cfg80211_disconnect_work); 	return err;} int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,		     struct net_device *dev, int link_id,		     bool notify){	unsigned int link;	int ret = 0; 	if (link_id >= 0)		return ___cfg80211_stop_ap(rdev, dev, link_id, notify); 	for_each_valid_link(dev->ieee80211_ptr, link) {		int ret1 = ___cfg80211_stop_ap(rdev, dev, link, notify); 		if (ret1)			ret = ret1;		/* try the next one also if one errored */	} 	return ret;}