OSCL-LXR linux-6.0.1/​net/​mac80211/​ieee80211_i.h	Source navigation Diff markup Identifier search General search
	Version: linux-6.0.1 spark-3.0.0 hadoop-3.2.0-src hadoop-3.3.0-src spark-2.4.7 linux-4.15.13 hadoop-2.7.4-src Revert   Change

 /* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright 2002-2005, Instant802 Networks, Inc.
  * Copyright 2005, Devicescape Software, Inc.
  * Copyright 2006-2007  Jiri Benc <jbenc@suse.cz>
  * Copyright 2007-2010  Johannes Berg <johannes@sipsolutions.net>
  * Copyright 2013-2015  Intel Mobile Communications GmbH
  * Copyright (C) 2018-2022 Intel Corporation
  */
 
 #ifndef IEEE80211_I_H
 #define IEEE80211_I_H
 
 #include <linux/kernel.h>
 #include <linux/device.h>
 #include <linux/if_ether.h>
 #include <linux/interrupt.h>
 #include <linux/list.h>
 #include <linux/netdevice.h>
 #include <linux/skbuff.h>
 #include <linux/workqueue.h>
 #include <linux/types.h>
 #include <linux/spinlock.h>
 #include <linux/etherdevice.h>
 #include <linux/leds.h>
 #include <linux/idr.h>
 #include <linux/rhashtable.h>
 #include <linux/rbtree.h>
 #include <net/ieee80211_radiotap.h>
 #include <net/cfg80211.h>
 #include <net/mac80211.h>
 #include <net/fq.h>
 #include "key.h"
 #include "sta_info.h"
 #include "debug.h"
 
 extern const struct cfg80211_ops mac80211_config_ops;
 
 struct ieee80211_local;
 
 /* Maximum number of broadcast/multicast frames to buffer when some of the
  * associated stations are using power saving. */
 #define AP_MAX_BC_BUFFER 128
 
 /* Maximum number of frames buffered to all STAs, including multicast frames.
  * Note: increasing this limit increases the potential memory requirement. Each
  * frame can be up to about 2 kB long. */
 #define TOTAL_MAX_TX_BUFFER 512
 
 /* Required encryption head and tailroom */
 #define IEEE80211_ENCRYPT_HEADROOM 8
 #define IEEE80211_ENCRYPT_TAILROOM 18
 
 /* power level hasn't been configured (or set to automatic) */
 #define IEEE80211_UNSET_POWER_LEVEL INT_MIN
 
 /*
  * Some APs experience problems when working with U-APSD. Decreasing the
  * probability of that happening by using legacy mode for all ACs but VO isn't
  * enough.
  *
  * Cisco 4410N originally forced us to enable VO by default only because it
  * treated non-VO ACs as legacy.
  *
  * However some APs (notably Netgear R7000) silently reclassify packets to
  * different ACs. Since u-APSD ACs require trigger frames for frame retrieval
  * clients would never see some frames (e.g. ARP responses) or would fetch them
  * accidentally after a long time.
  *
  * It makes little sense to enable u-APSD queues by default because it needs
  * userspace applications to be aware of it to actually take advantage of the
  * possible additional powersavings. Implicitly depending on driver autotrigger
  * frame support doesn't make much sense.
  */
 #define IEEE80211_DEFAULT_UAPSD_QUEUES 0
 
 #define IEEE80211_DEFAULT_MAX_SP_LEN        \
     IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
 
 extern const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS];
 
 #define IEEE80211_DEAUTH_FRAME_LEN  (24 /* hdr */ + 2 /* reason */)
 
 #define IEEE80211_MAX_NAN_INSTANCE_ID 255
 
 
 /*
  * Keep a station's queues on the active list for deficit accounting purposes
  * if it was active or queued during the last 100ms
  */
 #define AIRTIME_ACTIVE_DURATION (HZ / 10)
 
 struct ieee80211_bss {
     u32 device_ts_beacon, device_ts_presp;
 
     bool wmm_used;
     bool uapsd_supported;
 
 #define IEEE80211_MAX_SUPP_RATES 32
     u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
     size_t supp_rates_len;
     struct ieee80211_rate *beacon_rate;
 
     u32 vht_cap_info;
 
     /*
      * During association, we save an ERP value from a probe response so
      * that we can feed ERP info to the driver when handling the
      * association completes. these fields probably won't be up-to-date
      * otherwise, you probably don't want to use them.
      */
     bool has_erp_value;
     u8 erp_value;
 
     /* Keep track of the corruption of the last beacon/probe response. */
     u8 corrupt_data;
 
     /* Keep track of what bits of information we have valid info for. */
     u8 valid_data;
 };
 
 /**
  * enum ieee80211_corrupt_data_flags - BSS data corruption flags
  * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
  * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
  *
  * These are bss flags that are attached to a bss in the
  * @corrupt_data field of &struct ieee80211_bss.
  */
 enum ieee80211_bss_corrupt_data_flags {
     IEEE80211_BSS_CORRUPT_BEACON        = BIT(0),
     IEEE80211_BSS_CORRUPT_PROBE_RESP    = BIT(1)
 };
 
 /**
  * enum ieee80211_valid_data_flags - BSS valid data flags
  * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
  * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
  * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
  *
  * These are bss flags that are attached to a bss in the
  * @valid_data field of &struct ieee80211_bss.  They show which parts
  * of the data structure were received as a result of an un-corrupted
  * beacon/probe response.
  */
 enum ieee80211_bss_valid_data_flags {
     IEEE80211_BSS_VALID_WMM         = BIT(1),
     IEEE80211_BSS_VALID_RATES       = BIT(2),
     IEEE80211_BSS_VALID_ERP         = BIT(3)
 };
 
 typedef unsigned __bitwise ieee80211_tx_result;
 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
 #define TX_DROP     ((__force ieee80211_tx_result) 1u)
 #define TX_QUEUED   ((__force ieee80211_tx_result) 2u)
 
 #define IEEE80211_TX_UNICAST        BIT(1)
 #define IEEE80211_TX_PS_BUFFERED    BIT(2)
 
 struct ieee80211_tx_data {
     struct sk_buff *skb;
     struct sk_buff_head skbs;
     struct ieee80211_local *local;
     struct ieee80211_sub_if_data *sdata;
     struct sta_info *sta;
     struct ieee80211_key *key;
     struct ieee80211_tx_rate rate;
 
     unsigned int flags;
 };
 
 
 typedef unsigned __bitwise ieee80211_rx_result;
 #define RX_CONTINUE     ((__force ieee80211_rx_result) 0u)
 #define RX_DROP_UNUSABLE    ((__force ieee80211_rx_result) 1u)
 #define RX_DROP_MONITOR     ((__force ieee80211_rx_result) 2u)
 #define RX_QUEUED       ((__force ieee80211_rx_result) 3u)
 
 /**
  * enum ieee80211_packet_rx_flags - packet RX flags
  * @IEEE80211_RX_AMSDU: a-MSDU packet
  * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
  * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
  *
  * These are per-frame flags that are attached to a frame in the
  * @rx_flags field of &struct ieee80211_rx_status.
  */
 enum ieee80211_packet_rx_flags {
     IEEE80211_RX_AMSDU          = BIT(3),
     IEEE80211_RX_MALFORMED_ACTION_FRM   = BIT(4),
     IEEE80211_RX_DEFERRED_RELEASE       = BIT(5),
 };
 
 /**
  * enum ieee80211_rx_flags - RX data flags
  *
  * @IEEE80211_RX_CMNTR: received on cooked monitor already
  * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
  *  to cfg80211_report_obss_beacon().
  *
  * These flags are used across handling multiple interfaces
  * for a single frame.
  */
 enum ieee80211_rx_flags {
     IEEE80211_RX_CMNTR      = BIT(0),
     IEEE80211_RX_BEACON_REPORTED    = BIT(1),
 };
 
 struct ieee80211_rx_data {
     struct list_head *list;
     struct sk_buff *skb;
     struct ieee80211_local *local;
     struct ieee80211_sub_if_data *sdata;
     struct ieee80211_link_data *link;
     struct sta_info *sta;
     struct ieee80211_key *key;
 
     unsigned int flags;
 
     /*
      * Index into sequence numbers array, 0..16
      * since the last (16) is used for non-QoS,
      * will be 16 on non-QoS frames.
      */
     int seqno_idx;
 
     /*
      * Index into the security IV/PN arrays, 0..16
      * since the last (16) is used for CCMP-encrypted
      * management frames, will be set to 16 on mgmt
      * frames and 0 on non-QoS frames.
      */
     int security_idx;
 
     int link_id;
 
     union {
         struct {
             u32 iv32;
             u16 iv16;
         } tkip;
         struct {
             u8 pn[IEEE80211_CCMP_PN_LEN];
         } ccm_gcm;
     };
 };
 
 struct ieee80211_csa_settings {
     const u16 *counter_offsets_beacon;
     const u16 *counter_offsets_presp;
 
     int n_counter_offsets_beacon;
     int n_counter_offsets_presp;
 
     u8 count;
 };
 
 struct ieee80211_color_change_settings {
     u16 counter_offset_beacon;
     u16 counter_offset_presp;
     u8 count;
 };
 
 struct beacon_data {
     u8 *head, *tail;
     int head_len, tail_len;
     struct ieee80211_meshconf_ie *meshconf;
     u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM];
     u8 cntdwn_current_counter;
     struct cfg80211_mbssid_elems *mbssid_ies;
     struct rcu_head rcu_head;
 };
 
 struct probe_resp {
     struct rcu_head rcu_head;
     int len;
     u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM];
     u8 data[];
 };
 
 struct fils_discovery_data {
     struct rcu_head rcu_head;
     int len;
     u8 data[];
 };
 
 struct unsol_bcast_probe_resp_data {
     struct rcu_head rcu_head;
     int len;
     u8 data[];
 };
 
 struct ps_data {
     /* yes, this looks ugly, but guarantees that we can later use
      * bitmap_empty :)
      * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
     u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]
             __aligned(__alignof__(unsigned long));
     struct sk_buff_head bc_buf;
     atomic_t num_sta_ps; /* number of stations in PS mode */
     int dtim_count;
     bool dtim_bc_mc;
 };
 
 struct ieee80211_if_ap {
     struct list_head vlans; /* write-protected with RTNL and local->mtx */
 
     struct ps_data ps;
     atomic_t num_mcast_sta; /* number of stations receiving multicast */
 
     bool multicast_to_unicast;
     bool active;
 };
 
 struct ieee80211_if_vlan {
     struct list_head list; /* write-protected with RTNL and local->mtx */
 
     /* used for all tx if the VLAN is configured to 4-addr mode */
     struct sta_info __rcu *sta;
     atomic_t num_mcast_sta; /* number of stations receiving multicast */
 };
 
 struct mesh_stats {
     __u32 fwded_mcast;      /* Mesh forwarded multicast frames */
     __u32 fwded_unicast;        /* Mesh forwarded unicast frames */
     __u32 fwded_frames;     /* Mesh total forwarded frames */
     __u32 dropped_frames_ttl;   /* Not transmitted since mesh_ttl == 0*/
     __u32 dropped_frames_no_route;  /* Not transmitted, no route found */
     __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
 };
 
 #define PREQ_Q_F_START      0x1
 #define PREQ_Q_F_REFRESH    0x2
 struct mesh_preq_queue {
     struct list_head list;
     u8 dst[ETH_ALEN];
     u8 flags;
 };
 
 struct ieee80211_roc_work {
     struct list_head list;
 
     struct ieee80211_sub_if_data *sdata;
 
     struct ieee80211_channel *chan;
 
     bool started, abort, hw_begun, notified;
     bool on_channel;
 
     unsigned long start_time;
 
     u32 duration, req_duration;
     struct sk_buff *frame;
     u64 cookie, mgmt_tx_cookie;
     enum ieee80211_roc_type type;
 };
 
 /* flags used in struct ieee80211_if_managed.flags */
 enum ieee80211_sta_flags {
     IEEE80211_STA_CONNECTION_POLL   = BIT(1),
     IEEE80211_STA_CONTROL_PORT  = BIT(2),
     IEEE80211_STA_MFP_ENABLED   = BIT(6),
     IEEE80211_STA_UAPSD_ENABLED = BIT(7),
     IEEE80211_STA_NULLFUNC_ACKED    = BIT(8),
     IEEE80211_STA_ENABLE_RRM    = BIT(15),
 };
 
 typedef u32 __bitwise ieee80211_conn_flags_t;
 
 enum ieee80211_conn_flags {
     IEEE80211_CONN_DISABLE_HT   = (__force ieee80211_conn_flags_t)BIT(0),
     IEEE80211_CONN_DISABLE_40MHZ    = (__force ieee80211_conn_flags_t)BIT(1),
     IEEE80211_CONN_DISABLE_VHT  = (__force ieee80211_conn_flags_t)BIT(2),
     IEEE80211_CONN_DISABLE_80P80MHZ = (__force ieee80211_conn_flags_t)BIT(3),
     IEEE80211_CONN_DISABLE_160MHZ   = (__force ieee80211_conn_flags_t)BIT(4),
     IEEE80211_CONN_DISABLE_HE   = (__force ieee80211_conn_flags_t)BIT(5),
     IEEE80211_CONN_DISABLE_EHT  = (__force ieee80211_conn_flags_t)BIT(6),
     IEEE80211_CONN_DISABLE_320MHZ   = (__force ieee80211_conn_flags_t)BIT(7),
 };
 
 struct ieee80211_mgd_auth_data {
     struct cfg80211_bss *bss;
     unsigned long timeout;
     int tries;
     u16 algorithm, expected_transaction;
 
     u8 key[WLAN_KEY_LEN_WEP104];
     u8 key_len, key_idx;
     bool done, waiting;
     bool peer_confirmed;
     bool timeout_started;
 
     u8 ap_addr[ETH_ALEN] __aligned(2);
 
     u16 sae_trans, sae_status;
     size_t data_len;
     u8 data[];
 };
 
 struct ieee80211_mgd_assoc_data {
     struct {
         struct cfg80211_bss *bss;
 
         u8 addr[ETH_ALEN] __aligned(2);
 
         u8 ap_ht_param;
 
         struct ieee80211_vht_cap ap_vht_cap;
 
         size_t elems_len;
         u8 *elems; /* pointing to inside ie[] below */
 
         ieee80211_conn_flags_t conn_flags;
     } link[IEEE80211_MLD_MAX_NUM_LINKS];
 
     u8 ap_addr[ETH_ALEN] __aligned(2);
 
     /* this is for a workaround, so we use it only for non-MLO */
     const u8 *supp_rates;
     u8 supp_rates_len;
 
     unsigned long timeout;
     int tries;
 
     u8 prev_ap_addr[ETH_ALEN];
     u8 ssid[IEEE80211_MAX_SSID_LEN];
     u8 ssid_len;
     bool wmm, uapsd;
     bool need_beacon;
     bool synced;
     bool timeout_started;
     bool s1g;
 
     unsigned int assoc_link_id;
 
     u8 fils_nonces[2 * FILS_NONCE_LEN];
     u8 fils_kek[FILS_MAX_KEK_LEN];
     size_t fils_kek_len;
 
     size_t ie_len;
     u8 *ie_pos; /* used to fill ie[] with link[].elems */
     u8 ie[];
 };
 
 struct ieee80211_sta_tx_tspec {
     /* timestamp of the first packet in the time slice */
     unsigned long time_slice_start;
 
     u32 admitted_time; /* in usecs, unlike over the air */
     u8 tsid;
     s8 up; /* signed to be able to invalidate with -1 during teardown */
 
     /* consumed TX time in microseconds in the time slice */
     u32 consumed_tx_time;
     enum {
         TX_TSPEC_ACTION_NONE = 0,
         TX_TSPEC_ACTION_DOWNGRADE,
         TX_TSPEC_ACTION_STOP_DOWNGRADE,
     } action;
     bool downgraded;
 };
 
 DECLARE_EWMA(beacon_signal, 4, 4)
 
 struct ieee80211_if_managed {
     struct timer_list timer;
     struct timer_list conn_mon_timer;
     struct timer_list bcn_mon_timer;
     struct work_struct monitor_work;
     struct work_struct beacon_connection_loss_work;
     struct work_struct csa_connection_drop_work;
 
     unsigned long beacon_timeout;
     unsigned long probe_timeout;
     int probe_send_count;
     bool nullfunc_failed;
     u8 connection_loss:1,
        driver_disconnect:1,
        reconnect:1,
        associated:1;
 
     struct ieee80211_mgd_auth_data *auth_data;
     struct ieee80211_mgd_assoc_data *assoc_data;
 
     bool powersave; /* powersave requested for this iface */
     bool broken_ap; /* AP is broken -- turn off powersave */
 
     unsigned int flags;
 
     bool status_acked;
     bool status_received;
     __le16 status_fc;
 
     enum {
         IEEE80211_MFP_DISABLED,
         IEEE80211_MFP_OPTIONAL,
         IEEE80211_MFP_REQUIRED
     } mfp; /* management frame protection */
 
     /*
      * Bitmask of enabled u-apsd queues,
      * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
      * to take effect.
      */
     unsigned int uapsd_queues;
 
     /*
      * Maximum number of buffered frames AP can deliver during a
      * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
      * Needs a new association to take effect.
      */
     unsigned int uapsd_max_sp_len;
 
     u8 use_4addr;
 
     /*
      * State variables for keeping track of RSSI of the AP currently
      * connected to and informing driver when RSSI has gone
      * below/above a certain threshold.
      */
     int rssi_min_thold, rssi_max_thold;
 
     struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
     struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
     struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
     struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
     struct ieee80211_s1g_cap s1g_capa; /* configured S1G overrides */
     struct ieee80211_s1g_cap s1g_capa_mask; /* valid s1g_capa bits */
 
     /* TDLS support */
     u8 tdls_peer[ETH_ALEN] __aligned(2);
     struct delayed_work tdls_peer_del_work;
     struct sk_buff *orig_teardown_skb; /* The original teardown skb */
     struct sk_buff *teardown_skb; /* A copy to send through the AP */
     spinlock_t teardown_lock; /* To lock changing teardown_skb */
     bool tdls_wider_bw_prohibited;
 
     /* WMM-AC TSPEC support */
     struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS];
     /* Use a separate work struct so that we can do something here
      * while the sdata->work is flushing the queues, for example.
      * otherwise, in scenarios where we hardly get any traffic out
      * on the BE queue, but there's a lot of VO traffic, we might
      * get stuck in a downgraded situation and flush takes forever.
      */
     struct delayed_work tx_tspec_wk;
 
     /* Information elements from the last transmitted (Re)Association
      * Request frame.
      */
     u8 *assoc_req_ies;
     size_t assoc_req_ies_len;
 };
 
 struct ieee80211_if_ibss {
     struct timer_list timer;
     struct work_struct csa_connection_drop_work;
 
     unsigned long last_scan_completed;
 
     u32 basic_rates;
 
     bool fixed_bssid;
     bool fixed_channel;
     bool privacy;
 
     bool control_port;
     bool userspace_handles_dfs;
 
     u8 bssid[ETH_ALEN] __aligned(2);
     u8 ssid[IEEE80211_MAX_SSID_LEN];
     u8 ssid_len, ie_len;
     u8 *ie;
     struct cfg80211_chan_def chandef;
 
     unsigned long ibss_join_req;
     /* probe response/beacon for IBSS */
     struct beacon_data __rcu *presp;
 
     struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
     struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
 
     spinlock_t incomplete_lock;
     struct list_head incomplete_stations;
 
     enum {
         IEEE80211_IBSS_MLME_SEARCH,
         IEEE80211_IBSS_MLME_JOINED,
     } state;
 };
 
 /**
  * struct ieee80211_if_ocb - OCB mode state
  *
  * @housekeeping_timer: timer for periodic invocation of a housekeeping task
  * @wrkq_flags: OCB deferred task action
  * @incomplete_lock: delayed STA insertion lock
  * @incomplete_stations: list of STAs waiting for delayed insertion
  * @joined: indication if the interface is connected to an OCB network
  */
 struct ieee80211_if_ocb {
     struct timer_list housekeeping_timer;
     unsigned long wrkq_flags;
 
     spinlock_t incomplete_lock;
     struct list_head incomplete_stations;
 
     bool joined;
 };
 
 /**
  * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
  *
  * these declarations define the interface, which enables
  * vendor-specific mesh synchronization
  *
  */
 struct ieee802_11_elems;
 struct ieee80211_mesh_sync_ops {
     void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata, u16 stype,
                  struct ieee80211_mgmt *mgmt, unsigned int len,
                  const struct ieee80211_meshconf_ie *mesh_cfg,
                  struct ieee80211_rx_status *rx_status);
 
     /* should be called with beacon_data under RCU read lock */
     void (*adjust_tsf)(struct ieee80211_sub_if_data *sdata,
                struct beacon_data *beacon);
     /* add other framework functions here */
 };
 
 struct mesh_csa_settings {
     struct rcu_head rcu_head;
     struct cfg80211_csa_settings settings;
 };
 
 /**
  * struct mesh_table
  *
  * @known_gates: list of known mesh gates and their mpaths by the station. The
  * gate's mpath may or may not be resolved and active.
  * @gates_lock: protects updates to known_gates
  * @rhead: the rhashtable containing struct mesh_paths, keyed by dest addr
  * @walk_head: linked list containing all mesh_path objects
  * @walk_lock: lock protecting walk_head
  * @entries: number of entries in the table
  */
 struct mesh_table {
     struct hlist_head known_gates;
     spinlock_t gates_lock;
     struct rhashtable rhead;
     struct hlist_head walk_head;
     spinlock_t walk_lock;
     atomic_t entries;       /* Up to MAX_MESH_NEIGHBOURS */
 };
 
 struct ieee80211_if_mesh {
     struct timer_list housekeeping_timer;
     struct timer_list mesh_path_timer;
     struct timer_list mesh_path_root_timer;
 
     unsigned long wrkq_flags;
     unsigned long mbss_changed;
 
     bool userspace_handles_dfs;
 
     u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
     size_t mesh_id_len;
     /* Active Path Selection Protocol Identifier */
     u8 mesh_pp_id;
     /* Active Path Selection Metric Identifier */
     u8 mesh_pm_id;
     /* Congestion Control Mode Identifier */
     u8 mesh_cc_id;
     /* Synchronization Protocol Identifier */
     u8 mesh_sp_id;
     /* Authentication Protocol Identifier */
     u8 mesh_auth_id;
     /* Local mesh Sequence Number */
     u32 sn;
     /* Last used PREQ ID */
     u32 preq_id;
     atomic_t mpaths;
     /* Timestamp of last SN update */
     unsigned long last_sn_update;
     /* Time when it's ok to send next PERR */
     unsigned long next_perr;
     /* Timestamp of last PREQ sent */
     unsigned long last_preq;
     struct mesh_rmc *rmc;
     spinlock_t mesh_preq_queue_lock;
     struct mesh_preq_queue preq_queue;
     int preq_queue_len;
     struct mesh_stats mshstats;
     struct mesh_config mshcfg;
     atomic_t estab_plinks;
     u32 mesh_seqnum;
     bool accepting_plinks;
     int num_gates;
     struct beacon_data __rcu *beacon;
     const u8 *ie;
     u8 ie_len;
     enum {
         IEEE80211_MESH_SEC_NONE = 0x0,
         IEEE80211_MESH_SEC_AUTHED = 0x1,
         IEEE80211_MESH_SEC_SECURED = 0x2,
     } security;
     bool user_mpm;
     /* Extensible Synchronization Framework */
     const struct ieee80211_mesh_sync_ops *sync_ops;
     s64 sync_offset_clockdrift_max;
     spinlock_t sync_offset_lock;
     /* mesh power save */
     enum nl80211_mesh_power_mode nonpeer_pm;
     int ps_peers_light_sleep;
     int ps_peers_deep_sleep;
     struct ps_data ps;
     /* Channel Switching Support */
     struct mesh_csa_settings __rcu *csa;
     enum {
         IEEE80211_MESH_CSA_ROLE_NONE,
         IEEE80211_MESH_CSA_ROLE_INIT,
         IEEE80211_MESH_CSA_ROLE_REPEATER,
     } csa_role;
     u8 chsw_ttl;
     u16 pre_value;
 
     /* offset from skb->data while building IE */
     int meshconf_offset;
 
     struct mesh_table mesh_paths;
     struct mesh_table mpp_paths; /* Store paths for MPP&MAP */
     int mesh_paths_generation;
     int mpp_paths_generation;
 };
 
 #ifdef CONFIG_MAC80211_MESH
 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
     do { (msh)->mshstats.name++; } while (0)
 #else
 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
     do { } while (0)
 #endif
 
 /**
  * enum ieee80211_sub_if_data_flags - virtual interface flags
  *
  * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
  * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
  *  associated stations and deliver multicast frames both
  *  back to wireless media and to the local net stack.
  * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
  * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
  * @IEEE80211_SDATA_DISCONNECT_HW_RESTART: Disconnect after hardware restart
  *  recovery
  */
 enum ieee80211_sub_if_data_flags {
     IEEE80211_SDATA_ALLMULTI        = BIT(0),
     IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
     IEEE80211_SDATA_DISCONNECT_RESUME   = BIT(4),
     IEEE80211_SDATA_IN_DRIVER       = BIT(5),
     IEEE80211_SDATA_DISCONNECT_HW_RESTART   = BIT(6),
 };
 
 /**
  * enum ieee80211_sdata_state_bits - virtual interface state bits
  * @SDATA_STATE_RUNNING: virtual interface is up & running; this
  *  mirrors netif_running() but is separate for interface type
  *  change handling while the interface is up
  * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
  *  mode, so queues are stopped
  * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
  *  to offchannel, reset when offchannel returns
  */
 enum ieee80211_sdata_state_bits {
     SDATA_STATE_RUNNING,
     SDATA_STATE_OFFCHANNEL,
     SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
 };
 
 /**
  * enum ieee80211_chanctx_mode - channel context configuration mode
  *
  * @IEEE80211_CHANCTX_SHARED: channel context may be used by
  *  multiple interfaces
  * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
  *  only by a single interface. This can be used for example for
  *  non-fixed channel IBSS.
  */
 enum ieee80211_chanctx_mode {
     IEEE80211_CHANCTX_SHARED,
     IEEE80211_CHANCTX_EXCLUSIVE
 };
 
 /**
  * enum ieee80211_chanctx_replace_state - channel context replacement state
  *
  * This is used for channel context in-place reservations that require channel
  * context switch/swap.
  *
  * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
  * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
  *  by a (not yet registered) channel context pointed by %replace_ctx.
  * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
  *  replaces an existing channel context pointed to by %replace_ctx.
  */
 enum ieee80211_chanctx_replace_state {
     IEEE80211_CHANCTX_REPLACE_NONE,
     IEEE80211_CHANCTX_WILL_BE_REPLACED,
     IEEE80211_CHANCTX_REPLACES_OTHER,
 };
 
 struct ieee80211_chanctx {
     struct list_head list;
     struct rcu_head rcu_head;
 
     struct list_head assigned_links;
     struct list_head reserved_links;
 
     enum ieee80211_chanctx_replace_state replace_state;
     struct ieee80211_chanctx *replace_ctx;
 
     enum ieee80211_chanctx_mode mode;
     bool driver_present;
 
     struct ieee80211_chanctx_conf conf;
 };
 
 struct mac80211_qos_map {
     struct cfg80211_qos_map qos_map;
     struct rcu_head rcu_head;
 };
 
 enum txq_info_flags {
     IEEE80211_TXQ_STOP,
     IEEE80211_TXQ_AMPDU,
     IEEE80211_TXQ_NO_AMSDU,
     IEEE80211_TXQ_STOP_NETIF_TX,
 };
 
 /**
  * struct txq_info - per tid queue
  *
  * @tin: contains packets split into multiple flows
  * @def_flow: used as a fallback flow when a packet destined to @tin hashes to
  *  a fq_flow which is already owned by a different tin
  * @def_cvars: codel vars for @def_flow
  * @frags: used to keep fragments created after dequeue
  * @schedule_order: used with ieee80211_local->active_txqs
  * @schedule_round: counter to prevent infinite loops on TXQ scheduling
  */
 struct txq_info {
     struct fq_tin tin;
     struct codel_vars def_cvars;
     struct codel_stats cstats;
 
     u16 schedule_round;
     struct list_head schedule_order;
 
     struct sk_buff_head frags;
 
     unsigned long flags;
 
     /* keep last! */
     struct ieee80211_txq txq;
 };
 
 struct ieee80211_if_mntr {
     u32 flags;
     u8 mu_follow_addr[ETH_ALEN] __aligned(2);
 
     struct list_head list;
 };
 
 /**
  * struct ieee80211_if_nan - NAN state
  *
  * @conf: current NAN configuration
  * @func_ids: a bitmap of available instance_id's
  */
 struct ieee80211_if_nan {
     struct cfg80211_nan_conf conf;
 
     /* protects function_inst_ids */
     spinlock_t func_lock;
     struct idr function_inst_ids;
 };
 
 struct ieee80211_link_data_managed {
     u8 bssid[ETH_ALEN] __aligned(2);
 
     u8 dtim_period;
     enum ieee80211_smps_mode req_smps, /* requested smps mode */
                  driver_smps_mode; /* smps mode request */
 
     ieee80211_conn_flags_t conn_flags;
 
     s16 p2p_noa_index;
 
     bool tdls_chan_switch_prohibited;
 
     bool have_beacon;
     bool tracking_signal_avg;
     bool disable_wmm_tracking;
     bool operating_11g_mode;
 
     bool csa_waiting_bcn;
     bool csa_ignored_same_chan;
     struct timer_list chswitch_timer;
     struct work_struct chswitch_work;
 
     struct work_struct request_smps_work;
     bool beacon_crc_valid;
     u32 beacon_crc;
     struct ewma_beacon_signal ave_beacon_signal;
     int last_ave_beacon_signal;
 
     /*
      * Number of Beacon frames used in ave_beacon_signal. This can be used
      * to avoid generating less reliable cqm events that would be based
      * only on couple of received frames.
      */
     unsigned int count_beacon_signal;
 
     /* Number of times beacon loss was invoked. */
     unsigned int beacon_loss_count;
 
     /*
      * Last Beacon frame signal strength average (ave_beacon_signal / 16)
      * that triggered a cqm event. 0 indicates that no event has been
      * generated for the current association.
      */
     int last_cqm_event_signal;
 
     int wmm_last_param_set;
     int mu_edca_last_param_set;
 
     struct cfg80211_bss *bss;
 };
 
 struct ieee80211_link_data_ap {
     struct beacon_data __rcu *beacon;
     struct probe_resp __rcu *probe_resp;
     struct fils_discovery_data __rcu *fils_discovery;
     struct unsol_bcast_probe_resp_data __rcu *unsol_bcast_probe_resp;
 
     /* to be used after channel switch. */
     struct cfg80211_beacon_data *next_beacon;
 };
 
 struct ieee80211_link_data {
     struct ieee80211_sub_if_data *sdata;
     unsigned int link_id;
 
     struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */
     struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */
 
     /* multicast keys only */
     struct ieee80211_key __rcu *gtk[NUM_DEFAULT_KEYS +
                     NUM_DEFAULT_MGMT_KEYS +
                     NUM_DEFAULT_BEACON_KEYS];
     struct ieee80211_key __rcu *default_multicast_key;
     struct ieee80211_key __rcu *default_mgmt_key;
     struct ieee80211_key __rcu *default_beacon_key;
 
     struct work_struct csa_finalize_work;
     bool csa_block_tx; /* write-protected by sdata_lock and local->mtx */
 
     bool operating_11g_mode;
 
     struct cfg80211_chan_def csa_chandef;
 
     struct work_struct color_change_finalize_work;
 
     /* context reservation -- protected with chanctx_mtx */
     struct ieee80211_chanctx *reserved_chanctx;
     struct cfg80211_chan_def reserved_chandef;
     bool reserved_radar_required;
     bool reserved_ready;
 
     u8 needed_rx_chains;
     enum ieee80211_smps_mode smps_mode;
 
     int user_power_level; /* in dBm */
     int ap_power_level; /* in dBm */
 
     bool radar_required;
     struct delayed_work dfs_cac_timer_work;
 
     union {
         struct ieee80211_link_data_managed mgd;
         struct ieee80211_link_data_ap ap;
     } u;
 
     struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
 
     struct ieee80211_bss_conf *conf;
 };
 
 struct ieee80211_sub_if_data {
     struct list_head list;
 
     struct wireless_dev wdev;
 
     /* keys */
     struct list_head key_list;
 
     /* count for keys needing tailroom space allocation */
     int crypto_tx_tailroom_needed_cnt;
     int crypto_tx_tailroom_pending_dec;
     struct delayed_work dec_tailroom_needed_wk;
 
     struct net_device *dev;
     struct ieee80211_local *local;
 
     unsigned int flags;
 
     unsigned long state;
 
     char name[IFNAMSIZ];
 
     struct ieee80211_fragment_cache frags;
 
     /* TID bitmap for NoAck policy */
     u16 noack_map;
 
     /* bit field of ACM bits (BIT(802.1D tag)) */
     u8 wmm_acm;
 
     struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS];
     struct ieee80211_key __rcu *default_unicast_key;
 
     u16 sequence_number;
     u16 mld_mcast_seq;
     __be16 control_port_protocol;
     bool control_port_no_encrypt;
     bool control_port_no_preauth;
     bool control_port_over_nl80211;
 
     atomic_t num_tx_queued;
     struct mac80211_qos_map __rcu *qos_map;
 
     /* used to reconfigure hardware SM PS */
     struct work_struct recalc_smps;
 
     struct work_struct work;
     struct sk_buff_head skb_queue;
     struct sk_buff_head status_queue;
 
     /*
      * AP this belongs to: self in AP mode and
      * corresponding AP in VLAN mode, NULL for
      * all others (might be needed later in IBSS)
      */
     struct ieee80211_if_ap *bss;
 
     /* bitmap of allowed (non-MCS) rate indexes for rate control */
     u32 rc_rateidx_mask[NUM_NL80211_BANDS];
 
     bool rc_has_mcs_mask[NUM_NL80211_BANDS];
     u8  rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN];
 
     bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS];
     u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX];
 
     /* Beacon frame (non-MCS) rate (as a bitmap) */
     u32 beacon_rateidx_mask[NUM_NL80211_BANDS];
     bool beacon_rate_set;
 
     union {
         struct ieee80211_if_ap ap;
         struct ieee80211_if_vlan vlan;
         struct ieee80211_if_managed mgd;
         struct ieee80211_if_ibss ibss;
         struct ieee80211_if_mesh mesh;
         struct ieee80211_if_ocb ocb;
         struct ieee80211_if_mntr mntr;
         struct ieee80211_if_nan nan;
     } u;
 
     struct ieee80211_link_data deflink;
     struct ieee80211_link_data __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS];
 
 #ifdef CONFIG_MAC80211_DEBUGFS
     struct {
         struct dentry *subdir_stations;
         struct dentry *default_unicast_key;
         struct dentry *default_multicast_key;
         struct dentry *default_mgmt_key;
         struct dentry *default_beacon_key;
     } debugfs;
 #endif
 
     /* must be last, dynamically sized area in this! */
     struct ieee80211_vif vif;
 };
 
 static inline
 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
 {
     return container_of(p, struct ieee80211_sub_if_data, vif);
 }
 
 static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
     __acquires(&sdata->wdev.mtx)
 {
     mutex_lock(&sdata->wdev.mtx);
     __acquire(&sdata->wdev.mtx);
 }
 
 static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
     __releases(&sdata->wdev.mtx)
 {
     mutex_unlock(&sdata->wdev.mtx);
     __release(&sdata->wdev.mtx);
 }
 
 #define sdata_dereference(p, sdata) \
     rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
 
 static inline void
 sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
 {
     lockdep_assert_held(&sdata->wdev.mtx);
 }
 
 static inline int
 ieee80211_chanwidth_get_shift(enum nl80211_chan_width width)
 {
     switch (width) {
     case NL80211_CHAN_WIDTH_5:
         return 2;
     case NL80211_CHAN_WIDTH_10:
         return 1;
     default:
         return 0;
     }
 }
 
 static inline int
 ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef)
 {
     return ieee80211_chanwidth_get_shift(chandef->width);
 }
 
 static inline int
 ieee80211_vif_get_shift(struct ieee80211_vif *vif)
 {
     struct ieee80211_chanctx_conf *chanctx_conf;
     int shift = 0;
 
     rcu_read_lock();
     chanctx_conf = rcu_dereference(vif->bss_conf.chanctx_conf);
     if (chanctx_conf)
         shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
     rcu_read_unlock();
 
     return shift;
 }
 
 static inline int
 ieee80211_get_mbssid_beacon_len(struct cfg80211_mbssid_elems *elems)
 {
     int i, len = 0;
 
     if (!elems)
         return 0;
 
     for (i = 0; i < elems->cnt; i++)
         len += elems->elem[i].len;
 
     return len;
 }
 
 enum {
     IEEE80211_RX_MSG    = 1,
     IEEE80211_TX_STATUS_MSG = 2,
 };
 
 enum queue_stop_reason {
     IEEE80211_QUEUE_STOP_REASON_DRIVER,
     IEEE80211_QUEUE_STOP_REASON_PS,
     IEEE80211_QUEUE_STOP_REASON_CSA,
     IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
     IEEE80211_QUEUE_STOP_REASON_SUSPEND,
     IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
     IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
     IEEE80211_QUEUE_STOP_REASON_FLUSH,
     IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
     IEEE80211_QUEUE_STOP_REASON_RESERVE_TID,
     IEEE80211_QUEUE_STOP_REASON_IFTYPE_CHANGE,
 
     IEEE80211_QUEUE_STOP_REASONS,
 };
 
 #ifdef CONFIG_MAC80211_LEDS
 struct tpt_led_trigger {
     char name[32];
     const struct ieee80211_tpt_blink *blink_table;
     unsigned int blink_table_len;
     struct timer_list timer;
     struct ieee80211_local *local;
     unsigned long prev_traffic;
     unsigned long tx_bytes, rx_bytes;
     unsigned int active, want;
     bool running;
 };
 #endif
 
 /**
  * mac80211 scan flags - currently active scan mode
  *
  * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
  *  well be on the operating channel
  * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
  *  determine if we are on the operating channel or not
  * @SCAN_ONCHANNEL_SCANNING:  Do a software scan on only the current operating
  *  channel. This should not interrupt normal traffic.
  * @SCAN_COMPLETED: Set for our scan work function when the driver reported
  *  that the scan completed.
  * @SCAN_ABORTED: Set for our scan work function when the driver reported
  *  a scan complete for an aborted scan.
  * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
  *  cancelled.
  * @SCAN_BEACON_WAIT: Set whenever we're passive scanning because of radar/no-IR
  *  and could send a probe request after receiving a beacon.
  * @SCAN_BEACON_DONE: Beacon received, we can now send a probe request
  */
 enum {
     SCAN_SW_SCANNING,
     SCAN_HW_SCANNING,
     SCAN_ONCHANNEL_SCANNING,
     SCAN_COMPLETED,
     SCAN_ABORTED,
     SCAN_HW_CANCELLED,
     SCAN_BEACON_WAIT,
     SCAN_BEACON_DONE,
 };
 
 /**
  * enum mac80211_scan_state - scan state machine states
  *
  * @SCAN_DECISION: Main entry point to the scan state machine, this state
  *  determines if we should keep on scanning or switch back to the
  *  operating channel
  * @SCAN_SET_CHANNEL: Set the next channel to be scanned
  * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
  * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
  *  send out data
  * @SCAN_RESUME: Resume the scan and scan the next channel
  * @SCAN_ABORT: Abort the scan and go back to operating channel
  */
 enum mac80211_scan_state {
     SCAN_DECISION,
     SCAN_SET_CHANNEL,
     SCAN_SEND_PROBE,
     SCAN_SUSPEND,
     SCAN_RESUME,
     SCAN_ABORT,
 };
 
 DECLARE_STATIC_KEY_FALSE(aql_disable);
 
 struct ieee80211_local {
     /* embed the driver visible part.
      * don't cast (use the static inlines below), but we keep
      * it first anyway so they become a no-op */
     struct ieee80211_hw hw;
 
     struct fq fq;
     struct codel_vars *cvars;
     struct codel_params cparams;
 
     /* protects active_txqs and txqi->schedule_order */
     spinlock_t active_txq_lock[IEEE80211_NUM_ACS];
     struct list_head active_txqs[IEEE80211_NUM_ACS];
     u16 schedule_round[IEEE80211_NUM_ACS];
 
     u16 airtime_flags;
     u32 aql_txq_limit_low[IEEE80211_NUM_ACS];
     u32 aql_txq_limit_high[IEEE80211_NUM_ACS];
     u32 aql_threshold;
     atomic_t aql_total_pending_airtime;
     atomic_t aql_ac_pending_airtime[IEEE80211_NUM_ACS];
 
     const struct ieee80211_ops *ops;
 
     /*
      * private workqueue to mac80211. mac80211 makes this accessible
      * via ieee80211_queue_work()
      */
     struct workqueue_struct *workqueue;
 
     unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
     int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
     /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
     spinlock_t queue_stop_reason_lock;
 
     int open_count;
     int monitors, cooked_mntrs;
     /* number of interfaces with corresponding FIF_ flags */
     int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
         fif_probe_req;
     bool probe_req_reg;
     bool rx_mcast_action_reg;
     unsigned int filter_flags; /* FIF_* */
 
     bool wiphy_ciphers_allocated;
 
     bool use_chanctx;
 
     /* protects the aggregated multicast list and filter calls */
     spinlock_t filter_lock;
 
     /* used for uploading changed mc list */
     struct work_struct reconfig_filter;
 
     /* aggregated multicast list */
     struct netdev_hw_addr_list mc_list;
 
     bool tim_in_locked_section; /* see ieee80211_beacon_get() */
 
     /*
      * suspended is true if we finished all the suspend _and_ we have
      * not yet come up from resume. This is to be used by mac80211
      * to ensure driver sanity during suspend and mac80211's own
      * sanity. It can eventually be used for WoW as well.
      */
     bool suspended;
 
     /* suspending is true during the whole suspend process */
     bool suspending;
 
     /*
      * Resuming is true while suspended, but when we're reprogramming the
      * hardware -- at that time it's allowed to use ieee80211_queue_work()
      * again even though some other parts of the stack are still suspended
      * and we still drop received frames to avoid waking the stack.
      */
     bool resuming;
 
     /*
      * quiescing is true during the suspend process _only_ to
      * ease timer cancelling etc.
      */
     bool quiescing;
 
     /* device is started */
     bool started;
 
     /* device is during a HW reconfig */
     bool in_reconfig;
 
     /* wowlan is enabled -- don't reconfig on resume */
     bool wowlan;
 
     struct work_struct radar_detected_work;
 
     /* number of RX chains the hardware has */
     u8 rx_chains;
 
     /* bitmap of which sbands were copied */
     u8 sband_allocated;
 
     int tx_headroom; /* required headroom for hardware/radiotap */
 
     /* Tasklet and skb queue to process calls from IRQ mode. All frames
      * added to skb_queue will be processed, but frames in
      * skb_queue_unreliable may be dropped if the total length of these
      * queues increases over the limit. */
 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
     struct tasklet_struct tasklet;
     struct sk_buff_head skb_queue;
     struct sk_buff_head skb_queue_unreliable;
 
     spinlock_t rx_path_lock;
 
     /* Station data */
     /*
      * The mutex only protects the list, hash table and
      * counter, reads are done with RCU.
      */
     struct mutex sta_mtx;
     spinlock_t tim_lock;
     unsigned long num_sta;
     struct list_head sta_list;
     struct rhltable sta_hash;
     struct rhltable link_sta_hash;
     struct timer_list sta_cleanup;
     int sta_generation;
 
     struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
     struct tasklet_struct tx_pending_tasklet;
     struct tasklet_struct wake_txqs_tasklet;
 
     atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
 
     /* number of interfaces with allmulti RX */
     atomic_t iff_allmultis;
 
     struct rate_control_ref *rate_ctrl;
 
     struct arc4_ctx wep_tx_ctx;
     struct arc4_ctx wep_rx_ctx;
     u32 wep_iv;
 
     /* see iface.c */
     struct list_head interfaces;
     struct list_head mon_list; /* only that are IFF_UP && !cooked */
     struct mutex iflist_mtx;
 
     /*
      * Key mutex, protects sdata's key_list and sta_info's
      * key pointers and ptk_idx (write access, they're RCU.)
      */
     struct mutex key_mtx;
 
     /* mutex for scan and work locking */
     struct mutex mtx;
 
     /* Scanning and BSS list */
     unsigned long scanning;
     struct cfg80211_ssid scan_ssid;
     struct cfg80211_scan_request *int_scan_req;
     struct cfg80211_scan_request __rcu *scan_req;
     struct ieee80211_scan_request *hw_scan_req;
     struct cfg80211_chan_def scan_chandef;
     enum nl80211_band hw_scan_band;
     int scan_channel_idx;
     int scan_ies_len;
     int hw_scan_ies_bufsize;
     struct cfg80211_scan_info scan_info;
 
     struct work_struct sched_scan_stopped_work;
     struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
     struct cfg80211_sched_scan_request __rcu *sched_scan_req;
     u8 scan_addr[ETH_ALEN];
 
     unsigned long leave_oper_channel_time;
     enum mac80211_scan_state next_scan_state;
     struct delayed_work scan_work;
     struct ieee80211_sub_if_data __rcu *scan_sdata;
     /* For backward compatibility only -- do not use */
     struct cfg80211_chan_def _oper_chandef;
 
     /* Temporary remain-on-channel for off-channel operations */
     struct ieee80211_channel *tmp_channel;
 
     /* channel contexts */
     struct list_head chanctx_list;
     struct mutex chanctx_mtx;
 
 #ifdef CONFIG_MAC80211_LEDS
     struct led_trigger tx_led, rx_led, assoc_led, radio_led;
     struct led_trigger tpt_led;
     atomic_t tx_led_active, rx_led_active, assoc_led_active;
     atomic_t radio_led_active, tpt_led_active;
     struct tpt_led_trigger *tpt_led_trigger;
 #endif
 
 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
     /* SNMP counters */
     /* dot11CountersTable */
     u32 dot11TransmittedFragmentCount;
     u32 dot11MulticastTransmittedFrameCount;
     u32 dot11FailedCount;
     u32 dot11RetryCount;
     u32 dot11MultipleRetryCount;
     u32 dot11FrameDuplicateCount;
     u32 dot11ReceivedFragmentCount;
     u32 dot11MulticastReceivedFrameCount;
     u32 dot11TransmittedFrameCount;
 
     /* TX/RX handler statistics */
     unsigned int tx_handlers_drop;
     unsigned int tx_handlers_queued;
     unsigned int tx_handlers_drop_wep;
     unsigned int tx_handlers_drop_not_assoc;
     unsigned int tx_handlers_drop_unauth_port;
     unsigned int rx_handlers_drop;
     unsigned int rx_handlers_queued;
     unsigned int rx_handlers_drop_nullfunc;
     unsigned int rx_handlers_drop_defrag;
     unsigned int tx_expand_skb_head;
     unsigned int tx_expand_skb_head_cloned;
     unsigned int rx_expand_skb_head_defrag;
     unsigned int rx_handlers_fragments;
     unsigned int tx_status_drop;
 #define I802_DEBUG_INC(c) (c)++
 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
 #define I802_DEBUG_INC(c) do { } while (0)
 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
 
 
     int total_ps_buffered; /* total number of all buffered unicast and
                 * multicast packets for power saving stations
                 */
 
     bool pspolling;
     /*
      * PS can only be enabled when we have exactly one managed
      * interface (and monitors) in PS, this then points there.
      */
     struct ieee80211_sub_if_data *ps_sdata;
     struct work_struct dynamic_ps_enable_work;
     struct work_struct dynamic_ps_disable_work;
     struct timer_list dynamic_ps_timer;
     struct notifier_block ifa_notifier;
     struct notifier_block ifa6_notifier;
 
     /*
      * The dynamic ps timeout configured from user space via WEXT -
      * this will override whatever chosen by mac80211 internally.
      */
     int dynamic_ps_forced_timeout;
 
     int user_power_level; /* in dBm, for all interfaces */
 
     enum ieee80211_smps_mode smps_mode;
 
     struct work_struct restart_work;
 
 #ifdef CONFIG_MAC80211_DEBUGFS
     struct local_debugfsdentries {
         struct dentry *rcdir;
         struct dentry *keys;
     } debugfs;
     bool force_tx_status;
 #endif
 
     /*
      * Remain-on-channel support
      */
     struct delayed_work roc_work;
     struct list_head roc_list;
     struct work_struct hw_roc_start, hw_roc_done;
     unsigned long hw_roc_start_time;
     u64 roc_cookie_counter;
 
     struct idr ack_status_frames;
     spinlock_t ack_status_lock;
 
     struct ieee80211_sub_if_data __rcu *p2p_sdata;
 
     /* virtual monitor interface */
     struct ieee80211_sub_if_data __rcu *monitor_sdata;
     struct cfg80211_chan_def monitor_chandef;
 
     /* extended capabilities provided by mac80211 */
     u8 ext_capa[8];
 };
 
 static inline struct ieee80211_sub_if_data *
 IEEE80211_DEV_TO_SUB_IF(const struct net_device *dev)
 {
     return netdev_priv(dev);
 }
 
 static inline struct ieee80211_sub_if_data *
 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
 {
     return container_of(wdev, struct ieee80211_sub_if_data, wdev);
 }
 
 static inline struct ieee80211_supported_band *
 ieee80211_get_sband(struct ieee80211_sub_if_data *sdata)
 {
     struct ieee80211_local *local = sdata->local;
     struct ieee80211_chanctx_conf *chanctx_conf;
     enum nl80211_band band;
 
     WARN_ON(sdata->vif.valid_links);
 
     rcu_read_lock();
     chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
 
     if (!chanctx_conf) {
         rcu_read_unlock();
         return NULL;
     }
 
     band = chanctx_conf->def.chan->band;
     rcu_read_unlock();
 
     return local->hw.wiphy->bands[band];
 }
 
 static inline struct ieee80211_supported_band *
 ieee80211_get_link_sband(struct ieee80211_link_data *link)
 {
     struct ieee80211_local *local = link->sdata->local;
     struct ieee80211_chanctx_conf *chanctx_conf;
     enum nl80211_band band;
 
     rcu_read_lock();
     chanctx_conf = rcu_dereference(link->conf->chanctx_conf);
     if (!chanctx_conf) {
         rcu_read_unlock();
         return NULL;
     }
 
     band = chanctx_conf->def.chan->band;
     rcu_read_unlock();
 
     return local->hw.wiphy->bands[band];
 }
 
 /* this struct holds the value parsing from channel switch IE  */
 struct ieee80211_csa_ie {
     struct cfg80211_chan_def chandef;
     u8 mode;
     u8 count;
     u8 ttl;
     u16 pre_value;
     u16 reason_code;
     u32 max_switch_time;
 };
 
 /* Parsed Information Elements */
 struct ieee802_11_elems {
     const u8 *ie_start;
     size_t total_len;
     u32 crc;
 
     /* pointers to IEs */
     const struct ieee80211_tdls_lnkie *lnk_id;
     const struct ieee80211_ch_switch_timing *ch_sw_timing;
     const u8 *ext_capab;
     const u8 *ssid;
     const u8 *supp_rates;
     const u8 *ds_params;
     const struct ieee80211_tim_ie *tim;
     const u8 *rsn;
     const u8 *rsnx;
     const u8 *erp_info;
     const u8 *ext_supp_rates;
     const u8 *wmm_info;
     const u8 *wmm_param;
     const struct ieee80211_ht_cap *ht_cap_elem;
     const struct ieee80211_ht_operation *ht_operation;
     const struct ieee80211_vht_cap *vht_cap_elem;
     const struct ieee80211_vht_operation *vht_operation;
     const struct ieee80211_meshconf_ie *mesh_config;
     const u8 *he_cap;
     const struct ieee80211_he_operation *he_operation;
     const struct ieee80211_he_spr *he_spr;
     const struct ieee80211_mu_edca_param_set *mu_edca_param_set;
     const struct ieee80211_he_6ghz_capa *he_6ghz_capa;
     const struct ieee80211_tx_pwr_env *tx_pwr_env[IEEE80211_TPE_MAX_IE_COUNT];
     const u8 *uora_element;
     const u8 *mesh_id;
     const u8 *peering;
     const __le16 *awake_window;
     const u8 *preq;
     const u8 *prep;
     const u8 *perr;
     const struct ieee80211_rann_ie *rann;
     const struct ieee80211_channel_sw_ie *ch_switch_ie;
     const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
     const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
     const u8 *max_channel_switch_time;
     const u8 *country_elem;
     const u8 *pwr_constr_elem;
     const u8 *cisco_dtpc_elem;
     const struct ieee80211_timeout_interval_ie *timeout_int;
     const u8 *opmode_notif;
     const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
     struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
     const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie;
     const struct ieee80211_multiple_bssid_configuration *mbssid_config_ie;
     const struct ieee80211_bssid_index *bssid_index;
     u8 max_bssid_indicator;
     u8 dtim_count;
     u8 dtim_period;
     const struct ieee80211_addba_ext_ie *addba_ext_ie;
     const struct ieee80211_s1g_cap *s1g_capab;
     const struct ieee80211_s1g_oper_ie *s1g_oper;
     const struct ieee80211_s1g_bcn_compat_ie *s1g_bcn_compat;
     const struct ieee80211_aid_response_ie *aid_resp;
     const struct ieee80211_eht_cap_elem *eht_cap;
     const struct ieee80211_eht_operation *eht_operation;
     const struct ieee80211_multi_link_elem *multi_link;
 
     /* length of them, respectively */
     u8 ext_capab_len;
     u8 ssid_len;
     u8 supp_rates_len;
     u8 tim_len;
     u8 rsn_len;
     u8 rsnx_len;
     u8 ext_supp_rates_len;
     u8 wmm_info_len;
     u8 wmm_param_len;
     u8 he_cap_len;
     u8 mesh_id_len;
     u8 peering_len;
     u8 preq_len;
     u8 prep_len;
     u8 perr_len;
     u8 country_elem_len;
     u8 bssid_index_len;
     u8 tx_pwr_env_len[IEEE80211_TPE_MAX_IE_COUNT];
     u8 tx_pwr_env_num;
     u8 eht_cap_len;
 
     /* whether a parse error occurred while retrieving these elements */
     bool parse_error;
 };
 
 static inline struct ieee80211_local *hw_to_local(
     struct ieee80211_hw *hw)
 {
     return container_of(hw, struct ieee80211_local, hw);
 }
 
 static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq)
 {
     return container_of(txq, struct txq_info, txq);
 }
 
 static inline bool txq_has_queue(struct ieee80211_txq *txq)
 {
     struct txq_info *txqi = to_txq_info(txq);
 
     return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets);
 }
 
 static inline bool
 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
 {
     WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
              status->flag & RX_FLAG_MACTIME_END);
     return !!(status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END |
                   RX_FLAG_MACTIME_PLCP_START));
 }
 
 void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata);
 void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata);
 
 /* This function returns the number of multicast stations connected to this
  * interface. It returns -1 if that number is not tracked, that is for netdevs
  * not in AP or AP_VLAN mode or when using 4addr.
  */
 static inline int
 ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata)
 {
     if (sdata->vif.type == NL80211_IFTYPE_AP)
         return atomic_read(&sdata->u.ap.num_mcast_sta);
     if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta)
         return atomic_read(&sdata->u.vlan.num_mcast_sta);
     return -1;
 }
 
 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
                      struct ieee80211_rx_status *status,
                      unsigned int mpdu_len,
                      unsigned int mpdu_offset);
 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
                       u64 changed);
 void ieee80211_vif_cfg_change_notify(struct ieee80211_sub_if_data *sdata,
                      u64 changed);
 void ieee80211_link_info_change_notify(struct ieee80211_sub_if_data *sdata,
                        struct ieee80211_link_data *link,
                        u64 changed);
 void ieee80211_configure_filter(struct ieee80211_local *local);
 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
 
 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local);
 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
                  u64 *cookie, gfp_t gfp);
 
 void ieee80211_check_fast_rx(struct sta_info *sta);
 void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
 void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
 void ieee80211_clear_fast_rx(struct sta_info *sta);
 
 bool ieee80211_is_our_addr(struct ieee80211_sub_if_data *sdata,
                const u8 *addr, int *out_link_id);
 
 /* STA code */
 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
                struct cfg80211_auth_request *req);
 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
             struct cfg80211_assoc_request *req);
 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
              struct cfg80211_deauth_request *req);
 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
                struct cfg80211_disassoc_request *req);
 void ieee80211_send_pspoll(struct ieee80211_local *local,
                struct ieee80211_sub_if_data *sdata);
 void ieee80211_recalc_ps(struct ieee80211_local *local);
 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
                   struct sk_buff *skb);
 void ieee80211_sta_rx_queued_ext(struct ieee80211_sub_if_data *sdata,
                  struct sk_buff *skb);
 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
                   __le16 fc, bool acked);
 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata);
 void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
                    u8 reason, bool tx);
 void ieee80211_mgd_setup_link(struct ieee80211_link_data *link);
 void ieee80211_mgd_stop_link(struct ieee80211_link_data *link);
 
 /* IBSS code */
 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
                   const u8 *bssid, const u8 *addr, u32 supp_rates);
 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
             struct cfg80211_ibss_params *params);
 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
                    struct sk_buff *skb);
 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
                   struct cfg80211_csa_settings *csa_settings);
 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata);
 void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
 
 /* OCB code */
 void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata);
 void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata,
                  const u8 *bssid, const u8 *addr, u32 supp_rates);
 void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata);
 int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
                struct ocb_setup *setup);
 int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata);
 
 /* mesh code */
 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
                    struct sk_buff *skb);
 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
                   struct cfg80211_csa_settings *csa_settings);
 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata);
 
 /* scan/BSS handling */
 void ieee80211_scan_work(struct work_struct *work);
 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
                 const u8 *ssid, u8 ssid_len,
                 struct ieee80211_channel **channels,
                 unsigned int n_channels,
                 enum nl80211_bss_scan_width scan_width);
 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
                struct cfg80211_scan_request *req);
 void ieee80211_scan_cancel(struct ieee80211_local *local);
 void ieee80211_run_deferred_scan(struct ieee80211_local *local);
 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
 
 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
 struct ieee80211_bss *
 ieee80211_bss_info_update(struct ieee80211_local *local,
               struct ieee80211_rx_status *rx_status,
               struct ieee80211_mgmt *mgmt,
               size_t len,
               struct ieee80211_channel *channel);
 void ieee80211_rx_bss_put(struct ieee80211_local *local,
               struct ieee80211_bss *bss);
 
 /* scheduled scan handling */
 int
 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
                      struct cfg80211_sched_scan_request *req);
 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
                        struct cfg80211_sched_scan_request *req);
 int ieee80211_request_sched_scan_stop(struct ieee80211_local *local);
 void ieee80211_sched_scan_end(struct ieee80211_local *local);
 void ieee80211_sched_scan_stopped_work(struct work_struct *work);
 
 /* off-channel/mgmt-tx */
 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
 void ieee80211_offchannel_return(struct ieee80211_local *local);
 void ieee80211_roc_setup(struct ieee80211_local *local);
 void ieee80211_start_next_roc(struct ieee80211_local *local);
 void ieee80211_roc_purge(struct ieee80211_local *local,
              struct ieee80211_sub_if_data *sdata);
 int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
                 struct ieee80211_channel *chan,
                 unsigned int duration, u64 *cookie);
 int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
                        struct wireless_dev *wdev, u64 cookie);
 int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
               struct cfg80211_mgmt_tx_params *params, u64 *cookie);
 int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
                   struct wireless_dev *wdev, u64 cookie);
 
 /* channel switch handling */
 void ieee80211_csa_finalize_work(struct work_struct *work);
 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
                  struct cfg80211_csa_settings *params);
 
 /* color change handling */
 void ieee80211_color_change_finalize_work(struct work_struct *work);
 
 /* interface handling */
 #define MAC80211_SUPPORTED_FEATURES_TX  (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \
                      NETIF_F_HW_CSUM | NETIF_F_SG | \
                      NETIF_F_HIGHDMA | NETIF_F_GSO_SOFTWARE)
 #define MAC80211_SUPPORTED_FEATURES_RX  (NETIF_F_RXCSUM)
 #define MAC80211_SUPPORTED_FEATURES (MAC80211_SUPPORTED_FEATURES_TX | \
                      MAC80211_SUPPORTED_FEATURES_RX)
 
 int ieee80211_iface_init(void);
 void ieee80211_iface_exit(void);
 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
              unsigned char name_assign_type,
              struct wireless_dev **new_wdev, enum nl80211_iftype type,
              struct vif_params *params);
 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
                  enum nl80211_iftype type);
 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
 void ieee80211_remove_interfaces(struct ieee80211_local *local);
 u32 ieee80211_idle_off(struct ieee80211_local *local);
 void ieee80211_recalc_idle(struct ieee80211_local *local);
 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
                     const int offset);
 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
 int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
 void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
 
 int ieee80211_vif_set_links(struct ieee80211_sub_if_data *sdata,
                 u16 new_links);
 
 bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
 void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata,
                   bool update_bss);
 void ieee80211_recalc_offload(struct ieee80211_local *local);
 
 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
 {
     return test_bit(SDATA_STATE_RUNNING, &sdata->state);
 }
 
 /* tx handling */
 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
 void ieee80211_tx_pending(struct tasklet_struct *t);
 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
                      struct net_device *dev);
 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
                        struct net_device *dev);
 netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb,
                         struct net_device *dev);
 void __ieee80211_subif_start_xmit(struct sk_buff *skb,
                   struct net_device *dev,
                   u32 info_flags,
                   u32 ctrl_flags,
                   u64 *cookie);
 void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
                   struct sk_buff_head *skbs);
 struct sk_buff *
 ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
                   struct sk_buff *skb, u32 info_flags);
 void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
               int retry_count, int shift, bool send_to_cooked,
               struct ieee80211_tx_status *status);
 
 void ieee80211_check_fast_xmit(struct sta_info *sta);
 void ieee80211_check_fast_xmit_all(struct ieee80211_local *local);
 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata);
 void ieee80211_clear_fast_xmit(struct sta_info *sta);
 int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
                   const u8 *buf, size_t len,
                   const u8 *dest, __be16 proto, bool unencrypted,
                   int link_id, u64 *cookie);
 int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev,
                   const u8 *buf, size_t len);
 
 /* HT */
 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
                      struct ieee80211_sta_ht_cap *ht_cap);
 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
                        struct ieee80211_supported_band *sband,
                        const struct ieee80211_ht_cap *ht_cap_ie,
                        struct link_sta_info *link_sta);
 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
               const u8 *da, u16 tid,
               u16 initiator, u16 reason_code);
 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
                    enum ieee80211_smps_mode smps, const u8 *da,
                    const u8 *bssid);
 bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
                    enum ieee80211_smps_mode smps_mode_new);
 
 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
                      u16 initiator, u16 reason, bool stop);
 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
                     u16 initiator, u16 reason, bool stop);
 void ___ieee80211_start_rx_ba_session(struct sta_info *sta,
                       u8 dialog_token, u16 timeout,
                       u16 start_seq_num, u16 ba_policy, u16 tid,
                       u16 buf_size, bool tx, bool auto_seq,
                       const struct ieee80211_addba_ext_ie *addbaext);
 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
                      enum ieee80211_agg_stop_reason reason);
 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
                  struct sta_info *sta,
                  struct ieee80211_mgmt *mgmt, size_t len);
 void ieee80211_process_addba_resp(struct ieee80211_local *local,
                   struct sta_info *sta,
                   struct ieee80211_mgmt *mgmt,
                   size_t len);
 void ieee80211_process_addba_request(struct ieee80211_local *local,
                      struct sta_info *sta,
                      struct ieee80211_mgmt *mgmt,
                      size_t len);
 
 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
                    enum ieee80211_agg_stop_reason reason);
 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
                     enum ieee80211_agg_stop_reason reason);
 void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid,
                   struct tid_ampdu_tx *tid_tx);
 void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid,
                  struct tid_ampdu_tx *tid_tx);
 void ieee80211_ba_session_work(struct work_struct *work);
 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
 
 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
 enum nl80211_smps_mode
 ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps);
 
 /* VHT */
 void
 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
                     struct ieee80211_supported_band *sband,
                     const struct ieee80211_vht_cap *vht_cap_ie,
                     struct link_sta_info *link_sta);
 enum ieee80211_sta_rx_bandwidth
 ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta);
 enum ieee80211_sta_rx_bandwidth
 ieee80211_sta_cur_vht_bw(struct link_sta_info *link_sta);
 void ieee80211_sta_set_rx_nss(struct link_sta_info *link_sta);
 enum ieee80211_sta_rx_bandwidth
 ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width);
 enum nl80211_chan_width
 ieee80211_sta_cap_chan_bw(struct link_sta_info *link_sta);
 void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
                  struct ieee80211_link_data *link,
                  struct ieee80211_mgmt *mgmt);
 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
                   struct link_sta_info *sta,
                   u8 opmode, enum nl80211_band band);
 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
                  struct link_sta_info *sta,
                  u8 opmode, enum nl80211_band band);
 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
                       struct ieee80211_sta_vht_cap *vht_cap);
 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
                      u16 vht_mask[NL80211_VHT_NSS_MAX]);
 enum nl80211_chan_width
 ieee80211_sta_rx_bw_to_chan_width(struct link_sta_info *sta);
 
 /* HE */
 void
 ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata,
                   struct ieee80211_supported_band *sband,
                   const u8 *he_cap_ie, u8 he_cap_len,
                   const struct ieee80211_he_6ghz_capa *he_6ghz_capa,
                   struct link_sta_info *link_sta);
 void
 ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif,
                 const struct ieee80211_he_spr *he_spr_ie_elem);
 
 void
 ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif,
             const struct ieee80211_he_operation *he_op_ie_elem);
 
 /* S1G */
 void ieee80211_s1g_sta_rate_init(struct sta_info *sta);
 bool ieee80211_s1g_is_twt_setup(struct sk_buff *skb);
 void ieee80211_s1g_rx_twt_action(struct ieee80211_sub_if_data *sdata,
                  struct sk_buff *skb);
 void ieee80211_s1g_status_twt_action(struct ieee80211_sub_if_data *sdata,
                      struct sk_buff *skb);
 
 /* Spectrum management */
 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
                        struct ieee80211_mgmt *mgmt,
                        size_t len);
 /**
  * ieee80211_parse_ch_switch_ie - parses channel switch IEs
  * @sdata: the sdata of the interface which has received the frame
  * @elems: parsed 802.11 elements received with the frame
  * @current_band: indicates the current band
  * @vht_cap_info: VHT capabilities of the transmitter
  * @conn_flags: contains information about own capabilities and restrictions
  *  to decide which channel switch announcements can be accepted, using
  *  flags from &enum ieee80211_conn_flags.
  * @bssid: the currently connected bssid (for reporting)
  * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
     All of them will be filled with if success only.
  * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
  */
 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
                  struct ieee802_11_elems *elems,
                  enum nl80211_band current_band,
                  u32 vht_cap_info,
                  ieee80211_conn_flags_t conn_flags, u8 *bssid,
                  struct ieee80211_csa_ie *csa_ie);
 
 /* Suspend/resume and hw reconfiguration */
 int ieee80211_reconfig(struct ieee80211_local *local);
 void ieee80211_stop_device(struct ieee80211_local *local);
 
 int __ieee80211_suspend(struct ieee80211_hw *hw,
             struct cfg80211_wowlan *wowlan);
 
 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
 {
     struct ieee80211_local *local = hw_to_local(hw);
 
     WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) &&
          !test_bit(SCAN_COMPLETED, &local->scanning),
         "%s: resume with hardware scan still in progress\n",
         wiphy_name(hw->wiphy));
 
     return ieee80211_reconfig(hw_to_local(hw));
 }
 
 /* utility functions/constants */
 extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
 int ieee80211_frame_duration(enum nl80211_band band, size_t len,
                  int rate, int erp, int short_preamble,
                  int shift);
 void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata,
                        struct ieee80211_tx_queue_params *qparam,
                        int ac);
 void ieee80211_set_wmm_default(struct ieee80211_link_data *link,
                    bool bss_notify, bool enable_qos);
 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
             struct sta_info *sta, struct sk_buff *skb);
 
 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
                  struct sk_buff *skb, int tid, int link_id,
                  enum nl80211_band band);
 
 /* sta_out needs to be checked for ERR_PTR() before using */
 int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata,
                 struct sk_buff *skb,
                 struct sta_info **sta_out);
 
 static inline void
 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
               struct sk_buff *skb, int tid,
               enum nl80211_band band)
 {
     rcu_read_lock();
     __ieee80211_tx_skb_tid_band(sdata, skb, tid, -1, band);
     rcu_read_unlock();
 }
 
 void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
               struct sk_buff *skb, int tid, int link_id);
 
 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
                     struct sk_buff *skb)
 {
     /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
     ieee80211_tx_skb_tid(sdata, skb, 7, -1);
 }
 
 /**
  * struct ieee80211_elems_parse_params - element parsing parameters
  * @start: pointer to the elements
  * @len: length of the elements
  * @action: %true if the elements came from an action frame
  * @filter: bitmap of element IDs to filter out while calculating
  *  the element CRC
  * @crc: CRC starting value
  * @bss: the BSS to parse this as, for multi-BSSID cases this can
  *  represent a non-transmitting BSS in which case the data
  *  for that non-transmitting BSS is returned
  * @link_id: the link ID to parse elements for, if a STA profile
  *  is present in the multi-link element, or -1 to ignore
  */
 struct ieee80211_elems_parse_params {
     const u8 *start;
     size_t len;
     bool action;
     u64 filter;
     u32 crc;
     struct cfg80211_bss *bss;
     int link_id;
 };
 
 struct ieee802_11_elems *
 ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params);
 
 static inline struct ieee802_11_elems *
 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
                u64 filter, u32 crc,
                struct cfg80211_bss *bss)
 {
     struct ieee80211_elems_parse_params params = {
         .start = start,
         .len = len,
         .action = action,
         .filter = filter,
         .crc = crc,
         .bss = bss,
         .link_id = -1,
     };
 
     return ieee802_11_parse_elems_full(&params);
 }
 
 static inline struct ieee802_11_elems *
 ieee802_11_parse_elems(const u8 *start, size_t len, bool action,
                struct cfg80211_bss *bss)
 {
     return ieee802_11_parse_elems_crc(start, len, action, 0, 0, bss);
 }
 
 void ieee80211_fragment_element(struct sk_buff *skb, u8 *len_pos);
 
 extern const int ieee802_1d_to_ac[8];
 
 static inline int ieee80211_ac_from_tid(int tid)
 {
     return ieee802_1d_to_ac[tid & 7];
 }
 
 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
 void ieee80211_dynamic_ps_timer(struct timer_list *t);
 void ieee80211_send_nullfunc(struct ieee80211_local *local,
                  struct ieee80211_sub_if_data *sdata,
                  bool powersave);
 void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local,
                    struct ieee80211_sub_if_data *sdata);
 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
                  struct ieee80211_hdr *hdr, bool ack, u16 tx_time);
 
 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
                      unsigned long queues,
                      enum queue_stop_reason reason,
                      bool refcounted);
 void ieee80211_stop_vif_queues(struct ieee80211_local *local,
                    struct ieee80211_sub_if_data *sdata,
                    enum queue_stop_reason reason);
 void ieee80211_wake_vif_queues(struct ieee80211_local *local,
                    struct ieee80211_sub_if_data *sdata,
                    enum queue_stop_reason reason);
 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
                      unsigned long queues,
                      enum queue_stop_reason reason,
                      bool refcounted);
 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
                     enum queue_stop_reason reason,
                     bool refcounted);
 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
                     enum queue_stop_reason reason,
                     bool refcounted);
 void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
 void ieee80211_add_pending_skb(struct ieee80211_local *local,
                    struct sk_buff *skb);
 void ieee80211_add_pending_skbs(struct ieee80211_local *local,
                 struct sk_buff_head *skbs);
 void ieee80211_flush_queues(struct ieee80211_local *local,
                 struct ieee80211_sub_if_data *sdata, bool drop);
 void __ieee80211_flush_queues(struct ieee80211_local *local,
                   struct ieee80211_sub_if_data *sdata,
                   unsigned int queues, bool drop);
 
 static inline bool ieee80211_can_run_worker(struct ieee80211_local *local)
 {
     /*
      * It's unsafe to try to do any work during reconfigure flow.
      * When the flow ends the work will be requeued.
      */
     if (local->in_reconfig)
         return false;
 
     /*
      * If quiescing is set, we are racing with __ieee80211_suspend.
      * __ieee80211_suspend flushes the workers after setting quiescing,
      * and we check quiescing / suspended before enqueing new workers.
      * We should abort the worker to avoid the races below.
      */
     if (local->quiescing)
         return false;
 
     /*
      * We might already be suspended if the following scenario occurs:
      * __ieee80211_suspend      Control path
      *
      *              if (local->quiescing)
      *                  return;
      * local->quiescing = true;
      * flush_workqueue();
      *              queue_work(...);
      * local->suspended = true;
      * local->quiescing = false;
      *              worker starts running...
      */
     if (local->suspended)
         return false;
 
     return true;
 }
 
 int ieee80211_txq_setup_flows(struct ieee80211_local *local);
 void ieee80211_txq_set_params(struct ieee80211_local *local);
 void ieee80211_txq_teardown_flows(struct ieee80211_local *local);
 void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata,
             struct sta_info *sta,
             struct txq_info *txq, int tid);
 void ieee80211_txq_purge(struct ieee80211_local *local,
              struct txq_info *txqi);
 void ieee80211_txq_remove_vlan(struct ieee80211_local *local,
                    struct ieee80211_sub_if_data *sdata);
 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
                   struct txq_info *txqi);
 void ieee80211_wake_txqs(struct tasklet_struct *t);
 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
              u16 transaction, u16 auth_alg, u16 status,
              const u8 *extra, size_t extra_len, const u8 *bssid,
              const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
              u32 tx_flags);
 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
                     const u8 *da, const u8 *bssid,
                     u16 stype, u16 reason,
                     bool send_frame, u8 *frame_buf);
 
 enum {
     IEEE80211_PROBE_FLAG_DIRECTED       = BIT(0),
     IEEE80211_PROBE_FLAG_MIN_CONTENT    = BIT(1),
     IEEE80211_PROBE_FLAG_RANDOM_SN      = BIT(2),
 };
 
 int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer,
                  size_t buffer_len,
                  struct ieee80211_scan_ies *ie_desc,
                  const u8 *ie, size_t ie_len,
                  u8 bands_used, u32 *rate_masks,
                  struct cfg80211_chan_def *chandef,
                  u32 flags);
 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
                       const u8 *src, const u8 *dst,
                       u32 ratemask,
                       struct ieee80211_channel *chan,
                       const u8 *ssid, size_t ssid_len,
                       const u8 *ie, size_t ie_len,
                       u32 flags);
 u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
                 struct ieee802_11_elems *elems,
                 enum nl80211_band band, u32 *basic_rates);
 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
                  struct ieee80211_link_data *link,
                  enum ieee80211_smps_mode smps_mode);
 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata,
                struct ieee80211_link_data *link);
 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata,
                   int link_id);
 
 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
                   u16 cap);
 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
                    const struct cfg80211_chan_def *chandef,
                    u16 prot_mode, bool rifs_mode);
 void ieee80211_ie_build_wide_bw_cs(u8 *pos,
                    const struct cfg80211_chan_def *chandef);
 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
                    u32 cap);
 u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
                 const struct cfg80211_chan_def *chandef);
 u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata, u8 iftype);
 u8 *ieee80211_ie_build_he_cap(ieee80211_conn_flags_t disable_flags, u8 *pos,
                   const struct ieee80211_sta_he_cap *he_cap,
                   u8 *end);
 void ieee80211_ie_build_he_6ghz_cap(struct ieee80211_sub_if_data *sdata,
                     struct sk_buff *skb);
 u8 *ieee80211_ie_build_he_oper(u8 *pos, struct cfg80211_chan_def *chandef);
 int ieee80211_parse_bitrates(enum nl80211_chan_width width,
                  const struct ieee80211_supported_band *sband,
                  const u8 *srates, int srates_len, u32 *rates);
 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
                 struct sk_buff *skb, bool need_basic,
                 enum nl80211_band band);
 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
                 struct sk_buff *skb, bool need_basic,
                 enum nl80211_band band);
 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
 void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata,
                 struct ieee80211_sta_s1g_cap *caps,
                 struct sk_buff *skb);
 void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata,
                   struct sk_buff *skb);
 
 /* channel management */
 bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
                    struct cfg80211_chan_def *chandef);
 bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info,
                 const struct ieee80211_vht_operation *oper,
                 const struct ieee80211_ht_operation *htop,
                 struct cfg80211_chan_def *chandef);
 void ieee80211_chandef_eht_oper(struct ieee80211_sub_if_data *sdata,
                 const struct ieee80211_eht_operation *eht_oper,
                 bool support_160, bool support_320,
                 struct cfg80211_chan_def *chandef);
 bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata,
                     const struct ieee80211_he_operation *he_oper,
                     const struct ieee80211_eht_operation *eht_oper,
                     struct cfg80211_chan_def *chandef);
 bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie *oper,
                 struct cfg80211_chan_def *chandef);
 ieee80211_conn_flags_t ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
 
 int __must_check
 ieee80211_link_use_channel(struct ieee80211_link_data *link,
                const struct cfg80211_chan_def *chandef,
                enum ieee80211_chanctx_mode mode);
 int __must_check
 ieee80211_link_reserve_chanctx(struct ieee80211_link_data *link,
                    const struct cfg80211_chan_def *chandef,
                    enum ieee80211_chanctx_mode mode,
                    bool radar_required);
 int __must_check
 ieee80211_link_use_reserved_context(struct ieee80211_link_data *link);
 int ieee80211_link_unreserve_chanctx(struct ieee80211_link_data *link);
 
 int __must_check
 ieee80211_link_change_bandwidth(struct ieee80211_link_data *link,
                 const struct cfg80211_chan_def *chandef,
                 u32 *changed);
 void ieee80211_link_release_channel(struct ieee80211_link_data *link);
 void ieee80211_link_vlan_copy_chanctx(struct ieee80211_link_data *link);
 void ieee80211_link_copy_chanctx_to_vlans(struct ieee80211_link_data *link,
                       bool clear);
 int ieee80211_chanctx_refcount(struct ieee80211_local *local,
                    struct ieee80211_chanctx *ctx);
 
 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
                    struct ieee80211_chanctx *chanctx);
 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
                       struct ieee80211_chanctx *ctx);
 bool ieee80211_is_radar_required(struct ieee80211_local *local);
 
 void ieee80211_dfs_cac_timer(unsigned long data);
 void ieee80211_dfs_cac_timer_work(struct work_struct *work);
 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
 void ieee80211_dfs_radar_detected_work(struct work_struct *work);
 int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
                   struct cfg80211_csa_settings *csa_settings);
 
 void ieee80211_recalc_dtim(struct ieee80211_local *local,
                struct ieee80211_sub_if_data *sdata);
 int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
                  const struct cfg80211_chan_def *chandef,
                  enum ieee80211_chanctx_mode chanmode,
                  u8 radar_detect);
 int ieee80211_max_num_channels(struct ieee80211_local *local);
 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
                        struct ieee80211_chanctx *ctx);
 
 /* TDLS */
 int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
             const u8 *peer, u8 action_code, u8 dialog_token,
             u16 status_code, u32 peer_capability,
             bool initiator, const u8 *extra_ies,
             size_t extra_ies_len);
 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
             const u8 *peer, enum nl80211_tdls_operation oper);
 void ieee80211_tdls_peer_del_work(struct work_struct *wk);
 int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
                   const u8 *addr, u8 oper_class,
                   struct cfg80211_chan_def *chandef);
 void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
                       struct net_device *dev,
                       const u8 *addr);
 void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata);
 void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata,
                       const u8 *peer, u16 reason);
 void
 ieee80211_process_tdls_channel_switch(struct ieee80211_sub_if_data *sdata,
                       struct sk_buff *skb);
 
 
 const char *ieee80211_get_reason_code_string(u16 reason_code);
 u16 ieee80211_encode_usf(int val);
 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
             enum nl80211_iftype type);
 
 extern const struct ethtool_ops ieee80211_ethtool_ops;
 
 u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw,
                        struct ieee80211_vif *vif,
                        struct ieee80211_sta *pubsta,
                        int len, bool ampdu);
 #ifdef CONFIG_MAC80211_NOINLINE
 #define debug_noinline noinline
 #else
 #define debug_noinline
 #endif
 
 void ieee80211_init_frag_cache(struct ieee80211_fragment_cache *cache);
 void ieee80211_destroy_frag_cache(struct ieee80211_fragment_cache *cache);
 
 u8 ieee80211_ie_len_eht_cap(struct ieee80211_sub_if_data *sdata, u8 iftype);
 u8 *ieee80211_ie_build_eht_cap(u8 *pos,
                    const struct ieee80211_sta_he_cap *he_cap,
                    const struct ieee80211_sta_eht_cap *eht_cap,
                    u8 *end);
 
 void
 ieee80211_eht_cap_ie_to_sta_eht_cap(struct ieee80211_sub_if_data *sdata,
                     struct ieee80211_supported_band *sband,
                     const u8 *he_cap_ie, u8 he_cap_len,
                     const struct ieee80211_eht_cap_elem *eht_cap_ie_elem,
                     u8 eht_cap_len,
                     struct link_sta_info *link_sta);
 #endif /* IEEE80211_I_H */