diff options
Diffstat (limited to 'net/mac80211')
46 files changed, 2093 insertions, 1965 deletions
diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig index 51ec8256b7fa..037ab74f5ade 100644 --- a/net/mac80211/Kconfig +++ b/net/mac80211/Kconfig @@ -57,6 +57,17 @@ endif comment "Some wireless drivers require a rate control algorithm" depends on MAC80211 && MAC80211_HAS_RC=n +config MAC80211_KUNIT_TEST + tristate "KUnit tests for mac80211" if !KUNIT_ALL_TESTS + depends on KUNIT + depends on MAC80211 + default KUNIT_ALL_TESTS + depends on !KERNEL_6_2 + help + Enable this option to test mac80211 internals with kunit. + + If unsure, say N. + config MAC80211_MESH bool "Enable mac80211 mesh networking support" depends on MAC80211 diff --git a/net/mac80211/Makefile b/net/mac80211/Makefile index b8de44da1fb8..c9eb52768133 100644 --- a/net/mac80211/Makefile +++ b/net/mac80211/Makefile @@ -65,4 +65,6 @@ rc80211_minstrel-$(CONFIG_MAC80211_DEBUGFS) += \ mac80211-$(CONFIG_MAC80211_RC_MINSTREL) += $(rc80211_minstrel-y) +obj-y += tests/ + ccflags-y += -DDEBUG diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c index c6fa53230450..9bffac7a4974 100644 --- a/net/mac80211/agg-rx.c +++ b/net/mac80211/agg-rx.c @@ -9,7 +9,7 @@ * Copyright 2007, Michael Wu <flamingice@sourmilk.net> * Copyright 2007-2010, Intel Corporation * Copyright(c) 2015-2017 Intel Deutschland GmbH - * Copyright (C) 2018-2022 Intel Corporation + * Copyright (C) 2018-2023 Intel Corporation */ /** @@ -55,8 +55,8 @@ static void ieee80211_free_tid_rx(struct rcu_head *h) kfree(tid_rx); } -void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, - u16 initiator, u16 reason, bool tx) +void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, + u16 initiator, u16 reason, bool tx) { struct ieee80211_local *local = sta->local; struct tid_ampdu_rx *tid_rx; @@ -69,10 +69,10 @@ void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, .ssn = 0, }; - lockdep_assert_held(&sta->ampdu_mlme.mtx); + lockdep_assert_wiphy(sta->local->hw.wiphy); tid_rx = rcu_dereference_protected(sta->ampdu_mlme.tid_rx[tid], - lockdep_is_held(&sta->ampdu_mlme.mtx)); + lockdep_is_held(&sta->local->hw.wiphy->mtx)); if (!test_bit(tid, sta->ampdu_mlme.agg_session_valid)) return; @@ -114,14 +114,6 @@ void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, call_rcu(&tid_rx->rcu_head, ieee80211_free_tid_rx); } -void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, - u16 initiator, u16 reason, bool tx) -{ - mutex_lock(&sta->ampdu_mlme.mtx); - ___ieee80211_stop_rx_ba_session(sta, tid, initiator, reason, tx); - mutex_unlock(&sta->ampdu_mlme.mtx); -} - void ieee80211_stop_rx_ba_session(struct ieee80211_vif *vif, u16 ba_rx_bitmap, const u8 *addr) { @@ -140,7 +132,7 @@ void ieee80211_stop_rx_ba_session(struct ieee80211_vif *vif, u16 ba_rx_bitmap, if (ba_rx_bitmap & BIT(i)) set_bit(i, sta->ampdu_mlme.tid_rx_stop_requested); - ieee80211_queue_work(&sta->local->hw, &sta->ampdu_mlme.work); + wiphy_work_queue(sta->local->hw.wiphy, &sta->ampdu_mlme.work); rcu_read_unlock(); } EXPORT_SYMBOL(ieee80211_stop_rx_ba_session); @@ -166,7 +158,7 @@ static void sta_rx_agg_session_timer_expired(struct timer_list *t) sta->sta.addr, tid); set_bit(tid, sta->ampdu_mlme.tid_rx_timer_expired); - ieee80211_queue_work(&sta->local->hw, &sta->ampdu_mlme.work); + wiphy_work_queue(sta->local->hw.wiphy, &sta->ampdu_mlme.work); } static void sta_rx_agg_reorder_timer_expired(struct timer_list *t) @@ -250,11 +242,11 @@ static void ieee80211_send_addba_resp(struct sta_info *sta, u8 *da, u16 tid, ieee80211_tx_skb(sdata, skb); } -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_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) { struct ieee80211_local *local = sta->sdata->local; struct tid_ampdu_rx *tid_agg_rx; @@ -270,6 +262,8 @@ void ___ieee80211_start_rx_ba_session(struct sta_info *sta, u16 status = WLAN_STATUS_REQUEST_DECLINED; u16 max_buf_size; + lockdep_assert_wiphy(sta->local->hw.wiphy); + if (tid >= IEEE80211_FIRST_TSPEC_TSID) { ht_dbg(sta->sdata, "STA %pM requests BA session on unsupported tid %d\n", @@ -325,9 +319,6 @@ void ___ieee80211_start_rx_ba_session(struct sta_info *sta, ht_dbg(sta->sdata, "AddBA Req buf_size=%d for %pM\n", buf_size, sta->sta.addr); - /* examine state machine */ - lockdep_assert_held(&sta->ampdu_mlme.mtx); - if (test_bit(tid, sta->ampdu_mlme.agg_session_valid)) { if (sta->ampdu_mlme.tid_rx_token[tid] == dialog_token) { struct tid_ampdu_rx *tid_rx; @@ -355,9 +346,9 @@ void ___ieee80211_start_rx_ba_session(struct sta_info *sta, sta->sta.addr, tid); /* delete existing Rx BA session on the same tid */ - ___ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT, - WLAN_STATUS_UNSPECIFIED_QOS, - false); + __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT, + WLAN_STATUS_UNSPECIFIED_QOS, + false); } if (ieee80211_hw_check(&local->hw, SUPPORTS_REORDERING_BUFFER)) { @@ -444,20 +435,6 @@ end: timeout, addbaext); } -static 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) -{ - mutex_lock(&sta->ampdu_mlme.mtx); - ___ieee80211_start_rx_ba_session(sta, dialog_token, timeout, - start_seq_num, ba_policy, tid, - buf_size, tx, auto_seq, addbaext); - mutex_unlock(&sta->ampdu_mlme.mtx); -} - void ieee80211_process_addba_request(struct ieee80211_local *local, struct sta_info *sta, struct ieee80211_mgmt *mgmt, @@ -507,7 +484,6 @@ void ieee80211_manage_rx_ba_offl(struct ieee80211_vif *vif, const u8 *addr, unsigned int tid) { struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); - struct ieee80211_local *local = sdata->local; struct sta_info *sta; rcu_read_lock(); @@ -516,7 +492,7 @@ void ieee80211_manage_rx_ba_offl(struct ieee80211_vif *vif, goto unlock; set_bit(tid, sta->ampdu_mlme.tid_rx_manage_offl); - ieee80211_queue_work(&local->hw, &sta->ampdu_mlme.work); + wiphy_work_queue(sta->local->hw.wiphy, &sta->ampdu_mlme.work); unlock: rcu_read_unlock(); } @@ -526,7 +502,6 @@ void ieee80211_rx_ba_timer_expired(struct ieee80211_vif *vif, const u8 *addr, unsigned int tid) { struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); - struct ieee80211_local *local = sdata->local; struct sta_info *sta; rcu_read_lock(); @@ -535,7 +510,7 @@ void ieee80211_rx_ba_timer_expired(struct ieee80211_vif *vif, goto unlock; set_bit(tid, sta->ampdu_mlme.tid_rx_timer_expired); - ieee80211_queue_work(&local->hw, &sta->ampdu_mlme.work); + wiphy_work_queue(sta->local->hw.wiphy, &sta->ampdu_mlme.work); unlock: rcu_read_unlock(); diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c index b6b772685881..b8a278355e18 100644 --- a/net/mac80211/agg-tx.c +++ b/net/mac80211/agg-tx.c @@ -142,7 +142,7 @@ EXPORT_SYMBOL(ieee80211_send_bar); void ieee80211_assign_tid_tx(struct sta_info *sta, int tid, struct tid_ampdu_tx *tid_tx) { - lockdep_assert_held(&sta->ampdu_mlme.mtx); + lockdep_assert_wiphy(sta->local->hw.wiphy); lockdep_assert_held(&sta->lock); rcu_assign_pointer(sta->ampdu_mlme.tid_tx[tid], tid_tx); } @@ -213,7 +213,7 @@ ieee80211_agg_start_txq(struct sta_info *sta, int tid, bool enable) struct ieee80211_txq *txq = sta->sta.txq[tid]; struct txq_info *txqi; - lockdep_assert_held(&sta->ampdu_mlme.mtx); + lockdep_assert_wiphy(sta->local->hw.wiphy); if (!txq) return; @@ -271,7 +271,7 @@ static void ieee80211_remove_tid_tx(struct sta_info *sta, int tid) { struct tid_ampdu_tx *tid_tx; - lockdep_assert_held(&sta->ampdu_mlme.mtx); + lockdep_assert_wiphy(sta->local->hw.wiphy); lockdep_assert_held(&sta->lock); tid_tx = rcu_dereference_protected_tid_tx(sta, tid); @@ -296,8 +296,8 @@ static void ieee80211_remove_tid_tx(struct sta_info *sta, int tid) kfree_rcu(tid_tx, rcu_head); } -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) { struct ieee80211_local *local = sta->local; struct tid_ampdu_tx *tid_tx; @@ -311,7 +311,7 @@ int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, }; int ret; - lockdep_assert_held(&sta->ampdu_mlme.mtx); + lockdep_assert_wiphy(sta->local->hw.wiphy); switch (reason) { case AGG_STOP_DECLINED: @@ -461,7 +461,7 @@ static void ieee80211_send_addba_with_timeout(struct sta_info *sta, test_bit(HT_AGG_STATE_WANT_STOP, &tid_tx->state))) return; - lockdep_assert_held(&sta->ampdu_mlme.mtx); + lockdep_assert_wiphy(sta->local->hw.wiphy); /* activate the timer for the recipient's addBA response */ mod_timer(&tid_tx->addba_resp_timer, jiffies + ADDBA_RESP_INTERVAL); @@ -497,7 +497,7 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid) { struct tid_ampdu_tx *tid_tx; struct ieee80211_local *local = sta->local; - struct ieee80211_sub_if_data *sdata; + struct ieee80211_sub_if_data *sdata = sta->sdata; struct ieee80211_ampdu_params params = { .sta = &sta->sta, .action = IEEE80211_AMPDU_TX_START, @@ -525,7 +525,6 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid) */ synchronize_net(); - sdata = sta->sdata; params.ssn = sta->tid_seq[tid] >> 4; ret = drv_ampdu_action(local, sdata, ¶ms); tid_tx->ssn = params.ssn; @@ -539,9 +538,6 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid) */ set_bit(HT_AGG_STATE_DRV_READY, &tid_tx->state); } else if (ret) { - if (!sdata) - return; - ht_dbg(sdata, "BA request denied - HW unavailable for %pM tid %d\n", sta->sta.addr, tid); @@ -743,7 +739,7 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid, */ sta->ampdu_mlme.tid_start_tx[tid] = tid_tx; - ieee80211_queue_work(&local->hw, &sta->ampdu_mlme.work); + wiphy_work_queue(local->hw.wiphy, &sta->ampdu_mlme.work); /* this flow continues off the work */ err_unlock_sta: @@ -764,7 +760,7 @@ static void ieee80211_agg_tx_operational(struct ieee80211_local *local, .ssn = 0, }; - lockdep_assert_held(&sta->ampdu_mlme.mtx); + lockdep_assert_wiphy(sta->local->hw.wiphy); tid_tx = rcu_dereference_protected_tid_tx(sta, tid); params.buf_size = tid_tx->buf_size; @@ -801,7 +797,7 @@ void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid, struct ieee80211_sub_if_data *sdata = sta->sdata; struct ieee80211_local *local = sdata->local; - lockdep_assert_held(&sta->ampdu_mlme.mtx); + lockdep_assert_wiphy(sta->local->hw.wiphy); if (WARN_ON(test_and_set_bit(HT_AGG_STATE_DRV_READY, &tid_tx->state))) return; @@ -862,26 +858,12 @@ void ieee80211_start_tx_ba_cb_irqsafe(struct ieee80211_vif *vif, goto out; set_bit(HT_AGG_STATE_START_CB, &tid_tx->state); - ieee80211_queue_work(&local->hw, &sta->ampdu_mlme.work); + wiphy_work_queue(local->hw.wiphy, &sta->ampdu_mlme.work); out: rcu_read_unlock(); } EXPORT_SYMBOL(ieee80211_start_tx_ba_cb_irqsafe); -int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, - enum ieee80211_agg_stop_reason reason) -{ - int ret; - - mutex_lock(&sta->ampdu_mlme.mtx); - - ret = ___ieee80211_stop_tx_ba_session(sta, tid, reason); - - mutex_unlock(&sta->ampdu_mlme.mtx); - - return ret; -} - int ieee80211_stop_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid) { struct sta_info *sta = container_of(pubsta, struct sta_info, sta); @@ -916,7 +898,7 @@ int ieee80211_stop_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid) } set_bit(HT_AGG_STATE_WANT_STOP, &tid_tx->state); - ieee80211_queue_work(&local->hw, &sta->ampdu_mlme.work); + wiphy_work_queue(local->hw.wiphy, &sta->ampdu_mlme.work); unlock: spin_unlock_bh(&sta->lock); @@ -976,7 +958,7 @@ void ieee80211_stop_tx_ba_cb_irqsafe(struct ieee80211_vif *vif, goto out; set_bit(HT_AGG_STATE_STOP_CB, &tid_tx->state); - ieee80211_queue_work(&local->hw, &sta->ampdu_mlme.work); + wiphy_work_queue(local->hw.wiphy, &sta->ampdu_mlme.work); out: rcu_read_unlock(); } @@ -993,6 +975,8 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local, u16 capab, tid, buf_size; bool amsdu; + lockdep_assert_wiphy(sta->local->hw.wiphy); + capab = le16_to_cpu(mgmt->u.action.u.addba_resp.capab); amsdu = capab & IEEE80211_ADDBA_PARAM_AMSDU_MASK; tid = u16_get_bits(capab, IEEE80211_ADDBA_PARAM_TID_MASK); @@ -1003,16 +987,14 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local, if (!amsdu && txq) set_bit(IEEE80211_TXQ_NO_AMSDU, &to_txq_info(txq)->flags); - mutex_lock(&sta->ampdu_mlme.mtx); - tid_tx = rcu_dereference_protected_tid_tx(sta, tid); if (!tid_tx) - goto out; + return; if (mgmt->u.action.u.addba_resp.dialog_token != tid_tx->dialog_token) { ht_dbg(sta->sdata, "wrong addBA response token, %pM tid %d\n", sta->sta.addr, tid); - goto out; + return; } del_timer_sync(&tid_tx->addba_resp_timer); @@ -1030,7 +1012,7 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local, ht_dbg(sta->sdata, "got addBA resp for %pM tid %d but we already gave up\n", sta->sta.addr, tid); - goto out; + return; } /* @@ -1044,7 +1026,7 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local, if (test_and_set_bit(HT_AGG_STATE_RESPONSE_RECEIVED, &tid_tx->state)) { /* ignore duplicate response */ - goto out; + return; } tid_tx->buf_size = buf_size; @@ -1065,9 +1047,6 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local, } } else { - ___ieee80211_stop_tx_ba_session(sta, tid, AGG_STOP_DECLINED); + __ieee80211_stop_tx_ba_session(sta, tid, AGG_STOP_DECLINED); } - - out: - mutex_unlock(&sta->ampdu_mlme.mtx); } diff --git a/net/mac80211/airtime.c b/net/mac80211/airtime.c index e8ebd343e2bf..fdf8b658fede 100644 --- a/net/mac80211/airtime.c +++ b/net/mac80211/airtime.c @@ -557,7 +557,7 @@ static int ieee80211_fill_rx_status(struct ieee80211_rx_status *stat, if (ieee80211_fill_rate_info(hw, stat, band, ri)) return 0; - if (rate->idx < 0 || !rate->count) + if (!ieee80211_rate_valid(rate)) return -1; if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) @@ -632,7 +632,7 @@ u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw, { struct ieee80211_supported_band *sband; struct ieee80211_chanctx_conf *conf; - int rateidx, shift = 0; + int rateidx; bool cck, short_pream; u32 basic_rates; u8 band = 0; @@ -641,10 +641,8 @@ u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw, len += 38; /* Ethernet header length */ conf = rcu_dereference(vif->bss_conf.chanctx_conf); - if (conf) { + if (conf) band = conf->def.chan->band; - shift = ieee80211_chandef_get_shift(&conf->def); - } if (pubsta) { struct sta_info *sta = container_of(pubsta, struct sta_info, @@ -704,7 +702,7 @@ u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw, short_pream = vif->bss_conf.use_short_preamble; rateidx = basic_rates ? ffs(basic_rates) - 1 : 0; - rate = sband->bitrates[rateidx].bitrate << shift; + rate = sband->bitrates[rateidx].bitrate; cck = sband->bitrates[rateidx].flags & IEEE80211_RATE_MANDATORY_B; return ieee80211_calc_legacy_rate_duration(rate, short_pream, cck, len); diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 0e3a1753a51c..5cec0c251e86 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -214,6 +214,8 @@ static int ieee80211_change_iface(struct wiphy *wiphy, struct sta_info *sta; int ret; + lockdep_assert_wiphy(local->hw.wiphy); + ret = ieee80211_if_change_type(sdata, type); if (ret) return ret; @@ -235,12 +237,10 @@ static int ieee80211_change_iface(struct wiphy *wiphy, if (!ifmgd->associated) return 0; - mutex_lock(&local->sta_mtx); sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid); if (sta) drv_sta_set_4addr(local, sdata, &sta->sta, params->use_4addr); - mutex_unlock(&local->sta_mtx); if (params->use_4addr) ieee80211_send_4addr_nullfunc(local, sdata); @@ -261,9 +261,9 @@ static int ieee80211_start_p2p_device(struct wiphy *wiphy, struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); int ret; - mutex_lock(&sdata->local->chanctx_mtx); + lockdep_assert_wiphy(sdata->local->hw.wiphy); + ret = ieee80211_check_combinations(sdata, NULL, 0, 0); - mutex_unlock(&sdata->local->chanctx_mtx); if (ret < 0) return ret; @@ -283,9 +283,9 @@ static int ieee80211_start_nan(struct wiphy *wiphy, struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); int ret; - mutex_lock(&sdata->local->chanctx_mtx); + lockdep_assert_wiphy(sdata->local->hw.wiphy); + ret = ieee80211_check_combinations(sdata, NULL, 0, 0); - mutex_unlock(&sdata->local->chanctx_mtx); if (ret < 0) return ret; @@ -452,13 +452,11 @@ static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, if (sta->ptk_idx == key_idx) return 0; - mutex_lock(&local->key_mtx); - key = key_mtx_dereference(local, sta->ptk[key_idx]); + key = wiphy_dereference(local->hw.wiphy, sta->ptk[key_idx]); if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) ret = ieee80211_set_tx_key(key); - mutex_unlock(&local->key_mtx); return ret; } @@ -474,6 +472,8 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, struct ieee80211_key *key; int err; + lockdep_assert_wiphy(local->hw.wiphy); + if (!ieee80211_sdata_running(sdata)) return -ENETDOWN; @@ -510,8 +510,6 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, if (params->mode == NL80211_KEY_NO_TX) key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; - mutex_lock(&local->sta_mtx); - if (mac_addr) { sta = sta_info_get_bss(sdata, mac_addr); /* @@ -526,8 +524,7 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, */ if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { ieee80211_key_free_unused(key); - err = -ENOENT; - goto out_unlock; + return -ENOENT; } } @@ -570,9 +567,6 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, if (err == -EALREADY) err = 0; - out_unlock: - mutex_unlock(&local->sta_mtx); - return err; } @@ -585,8 +579,7 @@ ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id, struct ieee80211_key *key; if (link_id >= 0) { - link = rcu_dereference_check(sdata->link[link_id], - lockdep_is_held(&sdata->wdev.mtx)); + link = sdata_dereference(sdata->link[link_id], sdata); if (!link) return NULL; } @@ -601,7 +594,7 @@ ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id, if (link_id >= 0) { link_sta = rcu_dereference_check(sta->link[link_id], - lockdep_is_held(&local->sta_mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); if (!link_sta) return NULL; } else { @@ -609,30 +602,29 @@ ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id, } if (pairwise && key_idx < NUM_DEFAULT_KEYS) - return rcu_dereference_check_key_mtx(local, - sta->ptk[key_idx]); + return wiphy_dereference(local->hw.wiphy, + sta->ptk[key_idx]); if (!pairwise && key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS + NUM_DEFAULT_BEACON_KEYS) - return rcu_dereference_check_key_mtx(local, - link_sta->gtk[key_idx]); + return wiphy_dereference(local->hw.wiphy, + link_sta->gtk[key_idx]); return NULL; } if (pairwise && key_idx < NUM_DEFAULT_KEYS) - return rcu_dereference_check_key_mtx(local, - sdata->keys[key_idx]); + return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]); - key = rcu_dereference_check_key_mtx(local, link->gtk[key_idx]); + key = wiphy_dereference(local->hw.wiphy, link->gtk[key_idx]); if (key) return key; /* or maybe it was a WEP key */ if (key_idx < NUM_DEFAULT_KEYS) - return rcu_dereference_check_key_mtx(local, sdata->keys[key_idx]); + return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]); return NULL; } @@ -644,25 +636,16 @@ static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = sdata->local; struct ieee80211_key *key; - int ret; - mutex_lock(&local->sta_mtx); - mutex_lock(&local->key_mtx); + lockdep_assert_wiphy(local->hw.wiphy); key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); - if (!key) { - ret = -ENOENT; - goto out_unlock; - } + if (!key) + return -ENOENT; ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); - ret = 0; - out_unlock: - mutex_unlock(&local->key_mtx); - mutex_unlock(&local->sta_mtx); - - return ret; + return 0; } static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, @@ -833,15 +816,11 @@ void sta_set_rate_info_tx(struct sta_info *sta, rinfo->nss = ieee80211_rate_get_vht_nss(rate); } else { struct ieee80211_supported_band *sband; - int shift = ieee80211_vif_get_shift(&sta->sdata->vif); - u16 brate; sband = ieee80211_get_sband(sta->sdata); WARN_ON_ONCE(sband && !sband->bitrates); - if (sband && sband->bitrates) { - brate = sband->bitrates[rate->idx].bitrate; - rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); - } + if (sband && sband->bitrates) + rinfo->legacy = sband->bitrates[rate->idx].bitrate; } if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) rinfo->bw = RATE_INFO_BW_40; @@ -863,7 +842,7 @@ static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, struct sta_info *sta; int ret = -ENOENT; - mutex_lock(&local->sta_mtx); + lockdep_assert_wiphy(local->hw.wiphy); sta = sta_info_get_by_idx(sdata, idx); if (sta) { @@ -872,8 +851,6 @@ static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, sta_set_sinfo(sta, sinfo, true); } - mutex_unlock(&local->sta_mtx); - return ret; } @@ -893,7 +870,7 @@ static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, struct sta_info *sta; int ret = -ENOENT; - mutex_lock(&local->sta_mtx); + lockdep_assert_wiphy(local->hw.wiphy); sta = sta_info_get_bss(sdata, mac); if (sta) { @@ -901,8 +878,6 @@ static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, sta_set_sinfo(sta, sinfo, true); } - mutex_unlock(&local->sta_mtx); - return ret; } @@ -913,6 +888,8 @@ static int ieee80211_set_monitor_channel(struct wiphy *wiphy, struct ieee80211_sub_if_data *sdata; int ret = 0; + lockdep_assert_wiphy(local->hw.wiphy); + if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) return 0; @@ -920,22 +897,16 @@ static int ieee80211_set_monitor_channel(struct wiphy *wiphy, sdata = wiphy_dereference(local->hw.wiphy, local->monitor_sdata); if (sdata) { - sdata_lock(sdata); - mutex_lock(&local->mtx); ieee80211_link_release_channel(&sdata->deflink); ret = ieee80211_link_use_channel(&sdata->deflink, chandef, IEEE80211_CHANCTX_EXCLUSIVE); - mutex_unlock(&local->mtx); - sdata_unlock(sdata); } } else { - mutex_lock(&local->mtx); if (local->open_count == local->monitors) { local->_oper_chandef = *chandef; ieee80211_hw_config(local, 0); } - mutex_unlock(&local->mtx); } if (ret == 0) @@ -987,25 +958,29 @@ static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, struct fils_discovery_data *new, *old = NULL; struct ieee80211_fils_discovery *fd; - if (!params->tmpl || !params->tmpl_len) - return -EINVAL; + if (!params->update) + return 0; fd = &link_conf->fils_discovery; fd->min_interval = params->min_interval; fd->max_interval = params->max_interval; old = sdata_dereference(link->u.ap.fils_discovery, sdata); - new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); - if (!new) - return -ENOMEM; - new->len = params->tmpl_len; - memcpy(new->data, params->tmpl, params->tmpl_len); - rcu_assign_pointer(link->u.ap.fils_discovery, new); - if (old) kfree_rcu(old, rcu_head); - return 0; + if (params->tmpl && params->tmpl_len) { + new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); + if (!new) + return -ENOMEM; + new->len = params->tmpl_len; + memcpy(new->data, params->tmpl, params->tmpl_len); + rcu_assign_pointer(link->u.ap.fils_discovery, new); + } else { + RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); + } + + return BSS_CHANGED_FILS_DISCOVERY; } static int @@ -1016,23 +991,27 @@ ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, { struct unsol_bcast_probe_resp_data *new, *old = NULL; - if (!params->tmpl || !params->tmpl_len) - return -EINVAL; + if (!params->update) + return 0; - old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata); - new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); - if (!new) - return -ENOMEM; - new->len = params->tmpl_len; - memcpy(new->data, params->tmpl, params->tmpl_len); - rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new); + link_conf->unsol_bcast_probe_resp_interval = params->interval; + old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata); if (old) kfree_rcu(old, rcu_head); - link_conf->unsol_bcast_probe_resp_interval = params->interval; + if (params->tmpl && params->tmpl_len) { + new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); + if (!new) + return -ENOMEM; + new->len = params->tmpl_len; + memcpy(new->data, params->tmpl, params->tmpl_len); + rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new); + } else { + RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); + } - return 0; + return BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; } static int ieee80211_set_ftm_responder_params( @@ -1278,6 +1257,8 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, struct ieee80211_link_data *link; struct ieee80211_bss_conf *link_conf; + lockdep_assert_wiphy(local->hw.wiphy); + link = sdata_dereference(sdata->link[link_id], sdata); if (!link) return -ENOLINK; @@ -1387,12 +1368,10 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, return err; } - mutex_lock(&local->mtx); err = ieee80211_link_use_channel(link, ¶ms->chandef, IEEE80211_CHANCTX_SHARED); if (!err) ieee80211_link_copy_chanctx_to_vlans(link, false); - mutex_unlock(&local->mtx); if (err) { link_conf->beacon_int = prev_beacon_int; return err; @@ -1463,23 +1442,18 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, if (err < 0) goto error; - if (params->fils_discovery.max_interval) { - err = ieee80211_set_fils_discovery(sdata, - ¶ms->fils_discovery, - link, link_conf); - if (err < 0) - goto error; - changed |= BSS_CHANGED_FILS_DISCOVERY; - } + err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery, + link, link_conf); + if (err < 0) + goto error; + changed |= err; - if (params->unsol_bcast_probe_resp.interval) { - err = ieee80211_set_unsol_bcast_probe_resp(sdata, - ¶ms->unsol_bcast_probe_resp, - link, link_conf); - if (err < 0) - goto error; - changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; - } + err = ieee80211_set_unsol_bcast_probe_resp(sdata, + ¶ms->unsol_bcast_probe_resp, + link, link_conf); + if (err < 0) + goto error; + changed |= err; err = drv_start_ap(sdata->local, sdata, link_conf); if (err) { @@ -1503,26 +1477,26 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, return 0; error: - mutex_lock(&local->mtx); ieee80211_link_release_channel(link); - mutex_unlock(&local->mtx); return err; } static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, - struct cfg80211_beacon_data *params) + struct cfg80211_ap_update *params) + { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_link_data *link; + struct cfg80211_beacon_data *beacon = ¶ms->beacon; struct beacon_data *old; int err; struct ieee80211_bss_conf *link_conf; u64 changed = 0; - sdata_assert_lock(sdata); + lockdep_assert_wiphy(wiphy); - link = sdata_dereference(sdata->link[params->link_id], sdata); + link = sdata_dereference(sdata->link[beacon->link_id], sdata); if (!link) return -ENOLINK; @@ -1538,14 +1512,27 @@ static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, if (!old) return -ENOENT; - err = ieee80211_assign_beacon(sdata, link, params, NULL, NULL, + err = ieee80211_assign_beacon(sdata, link, beacon, NULL, NULL, &changed); if (err < 0) return err; - if (params->he_bss_color_valid && - params->he_bss_color.enabled != link_conf->he_bss_color.enabled) { - link_conf->he_bss_color.enabled = params->he_bss_color.enabled; + err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery, + link, link_conf); + if (err < 0) + return err; + changed |= err; + + err = ieee80211_set_unsol_bcast_probe_resp(sdata, + ¶ms->unsol_bcast_probe_resp, + link, link_conf); + if (err < 0) + return err; + changed |= err; + + if (beacon->he_bss_color_valid && + beacon->he_bss_color.enabled != link_conf->he_bss_color.enabled) { + link_conf->he_bss_color.enabled = beacon->he_bss_color.enabled; changed |= BSS_CHANGED_HE_BSS_COLOR; } @@ -1579,7 +1566,7 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, sdata_dereference(sdata->link[link_id], sdata); struct ieee80211_bss_conf *link_conf = link->conf; - sdata_assert_lock(sdata); + lockdep_assert_wiphy(local->hw.wiphy); old_beacon = sdata_dereference(link->u.ap.beacon, sdata); if (!old_beacon) @@ -1593,7 +1580,6 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, sdata); /* abort any running channel switch or color change */ - mutex_lock(&local->mtx); link_conf->csa_active = false; link_conf->color_change_active = false; if (link->csa_block_tx) { @@ -1602,8 +1588,6 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, link->csa_block_tx = false; } - mutex_unlock(&local->mtx); - ieee80211_free_next_beacon(link); /* turn off carrier for this interface and dependent VLANs */ @@ -1646,7 +1630,7 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, if (sdata->wdev.cac_started) { chandef = link_conf->chandef; - cancel_delayed_work_sync(&link->dfs_cac_timer_work); + wiphy_delayed_work_cancel(wiphy, &link->dfs_cac_timer_work); cfg80211_cac_event(sdata->dev, &chandef, NL80211_RADAR_CAC_ABORTED, GFP_KERNEL); @@ -1658,10 +1642,8 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); - mutex_lock(&local->mtx); ieee80211_link_copy_chanctx_to_vlans(link, true); ieee80211_link_release_channel(link); - mutex_unlock(&local->mtx); return 0; } @@ -1803,7 +1785,7 @@ static int sta_link_apply_parameters(struct ieee80211_local *local, sdata_dereference(sdata->link[link_id], sdata); struct link_sta_info *link_sta = rcu_dereference_protected(sta->link[link_id], - lockdep_is_held(&local->sta_mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); /* * If there are no changes, then accept a link that doesn't exist, @@ -2038,6 +2020,8 @@ static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, struct ieee80211_sub_if_data *sdata; int err; + lockdep_assert_wiphy(local->hw.wiphy); + if (params->vlan) { sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); @@ -2081,9 +2065,7 @@ static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, * visible yet), sta_apply_parameters (and inner functions) require * the mutex due to other paths. */ - mutex_lock(&local->sta_mtx); err = sta_apply_parameters(local, sta, params); - mutex_unlock(&local->sta_mtx); if (err) { sta_info_free(local, sta); return err; @@ -2126,13 +2108,11 @@ static int ieee80211_change_station(struct wiphy *wiphy, enum cfg80211_station_type statype; int err; - mutex_lock(&local->sta_mtx); + lockdep_assert_wiphy(local->hw.wiphy); sta = sta_info_get_bss(sdata, mac); - if (!sta) { - err = -ENOENT; - goto out_err; - } + if (!sta) + return -ENOENT; switch (sdata->vif.type) { case NL80211_IFTYPE_MESH_POINT: @@ -2162,22 +2142,19 @@ static int ieee80211_change_station(struct wiphy *wiphy, statype = CFG80211_STA_AP_CLIENT_UNASSOC; break; default: - err = -EOPNOTSUPP; - goto out_err; + return -EOPNOTSUPP; } err = cfg80211_check_station_change(wiphy, params, statype); if (err) - goto out_err; + return err; if (params->vlan && params->vlan != sta->sdata->dev) { vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); if (params->vlan->ieee80211_ptr->use_4addr) { - if (vlansdata->u.vlan.sta) { - err = -EBUSY; - goto out_err; - } + if (vlansdata->u.vlan.sta) + return -EBUSY; rcu_assign_pointer(vlansdata->u.vlan.sta, sta); __ieee80211_check_fast_rx_iface(vlansdata); @@ -2203,18 +2180,9 @@ static int ieee80211_change_station(struct wiphy *wiphy, } } - /* we use sta_info_get_bss() so this might be different */ - if (sdata != sta->sdata) { - mutex_lock_nested(&sta->sdata->wdev.mtx, 1); - err = sta_apply_parameters(local, sta, params); - mutex_unlock(&sta->sdata->wdev.mtx); - } else { - err = sta_apply_parameters(local, sta, params); - } + err = sta_apply_parameters(local, sta, params); if (err) - goto out_err; - - mutex_unlock(&local->sta_mtx); + return err; if (sdata->vif.type == NL80211_IFTYPE_STATION && params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { @@ -2223,9 +2191,6 @@ static int ieee80211_change_station(struct wiphy *wiphy, } return 0; -out_err: - mutex_unlock(&local->sta_mtx); - return err; } #ifdef CONFIG_MAC80211_MESH @@ -2638,6 +2603,8 @@ static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; int err; + lockdep_assert_wiphy(sdata->local->hw.wiphy); + memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); err = copy_mesh_setup(ifmsh, setup); if (err) @@ -2649,10 +2616,8 @@ static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; sdata->deflink.needed_rx_chains = sdata->local->rx_chains; - mutex_lock(&sdata->local->mtx); err = ieee80211_link_use_channel(&sdata->deflink, &setup->chandef, IEEE80211_CHANCTX_SHARED); - mutex_unlock(&sdata->local->mtx); if (err) return err; @@ -2663,11 +2628,11 @@ static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + lockdep_assert_wiphy(sdata->local->hw.wiphy); + ieee80211_stop_mesh(sdata); - mutex_lock(&sdata->local->mtx); ieee80211_link_release_channel(&sdata->deflink); kfree(sdata->u.mesh.ie); - mutex_unlock(&sdata->local->mtx); return 0; } @@ -3025,6 +2990,8 @@ static int ieee80211_set_tx_power(struct wiphy *wiphy, bool update_txp_type = false; bool has_monitor = false; + lockdep_assert_wiphy(local->hw.wiphy); + if (wdev) { sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); @@ -3072,7 +3039,6 @@ static int ieee80211_set_tx_power(struct wiphy *wiphy, break; } - mutex_lock(&local->iflist_mtx); list_for_each_entry(sdata, &local->interfaces, list) { if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { has_monitor = true; @@ -3088,7 +3054,6 @@ static int ieee80211_set_tx_power(struct wiphy *wiphy, continue; ieee80211_recalc_txpower(sdata, update_txp_type); } - mutex_unlock(&local->iflist_mtx); if (has_monitor) { sdata = wiphy_dereference(local->hw.wiphy, @@ -3121,6 +3086,10 @@ static int ieee80211_get_tx_power(struct wiphy *wiphy, else *dbm = sdata->vif.bss_conf.txpower; + /* INT_MIN indicates no power level was set yet */ + if (*dbm == INT_MIN) + return -EINVAL; + return 0; } @@ -3177,11 +3146,15 @@ int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, struct sta_info *sta; bool tdls_peer_found = false; - lockdep_assert_held(&sdata->wdev.mtx); + lockdep_assert_wiphy(sdata->local->hw.wiphy); if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) return -EINVAL; + if (ieee80211_vif_is_mld(&sdata->vif) && + !(sdata->vif.active_links & BIT(link->link_id))) + return 0; + old_req = link->u.mgd.req_smps; link->u.mgd.req_smps = smps_mode; @@ -3198,7 +3171,7 @@ int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, link->conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT) return 0; - ap = link->u.mgd.bssid; + ap = sdata->vif.cfg.ap_addr; rcu_read_lock(); list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { @@ -3220,7 +3193,9 @@ int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, /* send SM PS frame to AP */ err = ieee80211_send_smps_action(sdata, smps_mode, - ap, ap); + ap, ap, + ieee80211_vif_is_mld(&sdata->vif) ? + link->link_id : -1); if (err) link->u.mgd.req_smps = old_req; else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) @@ -3250,7 +3225,6 @@ static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, local->dynamic_ps_forced_timeout = timeout; /* no change, but if automatic follow powersave */ - sdata_lock(sdata); for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { struct ieee80211_link_data *link; @@ -3261,7 +3235,6 @@ static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, __ieee80211_request_smps_mgd(sdata, link, link->u.mgd.req_smps); } - sdata_unlock(sdata); if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); @@ -3407,7 +3380,8 @@ static int ieee80211_start_radar_detection(struct wiphy *wiphy, struct ieee80211_local *local = sdata->local; int err; - mutex_lock(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); + if (!list_empty(&local->roc_list) || local->scanning) { err = -EBUSY; goto out_unlock; @@ -3422,12 +3396,10 @@ static int ieee80211_start_radar_detection(struct wiphy *wiphy, if (err) goto out_unlock; - ieee80211_queue_delayed_work(&sdata->local->hw, - &sdata->deflink.dfs_cac_timer_work, - msecs_to_jiffies(cac_time_ms)); + wiphy_delayed_work_queue(wiphy, &sdata->deflink.dfs_cac_timer_work, + msecs_to_jiffies(cac_time_ms)); out_unlock: - mutex_unlock(&local->mtx); return err; } @@ -3437,20 +3409,21 @@ static void ieee80211_end_cac(struct wiphy *wiphy, struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = sdata->local; - mutex_lock(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); + list_for_each_entry(sdata, &local->interfaces, list) { /* it might be waiting for the local->mtx, but then * by the time it gets it, sdata->wdev.cac_started * will no longer be true */ - cancel_delayed_work(&sdata->deflink.dfs_cac_timer_work); + wiphy_delayed_work_cancel(wiphy, + &sdata->deflink.dfs_cac_timer_work); if (sdata->wdev.cac_started) { ieee80211_link_release_channel(&sdata->deflink); sdata->wdev.cac_started = false; } } - mutex_unlock(&local->mtx); } static struct cfg80211_beacon_data * @@ -3582,11 +3555,11 @@ void ieee80211_csa_finish(struct ieee80211_vif *vif) if (iter == sdata || iter->vif.mbssid_tx_vif != vif) continue; - ieee80211_queue_work(&iter->local->hw, - &iter->deflink.csa_finalize_work); + wiphy_work_queue(iter->local->hw.wiphy, + &iter->deflink.csa_finalize_work); } } - ieee80211_queue_work(&local->hw, &sdata->deflink.csa_finalize_work); + wiphy_work_queue(local->hw.wiphy, &sdata->deflink.csa_finalize_work); rcu_read_unlock(); } @@ -3642,15 +3615,14 @@ static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, return 0; } -static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) +static int __ieee80211_csa_finalize(struct ieee80211_link_data *link_data) { + struct ieee80211_sub_if_data *sdata = link_data->sdata; struct ieee80211_local *local = sdata->local; u64 changed = 0; int err; - sdata_assert_lock(sdata); - lockdep_assert_held(&local->mtx); - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); /* * using reservation isn't immediate as it may be deferred until later @@ -3659,20 +3631,20 @@ static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) * completed successfully */ - if (sdata->deflink.reserved_chanctx) { + if (link_data->reserved_chanctx) { /* * with multi-vif csa driver may call ieee80211_csa_finish() * many times while waiting for other interfaces to use their * reservations */ - if (sdata->deflink.reserved_ready) + if (link_data->reserved_ready) return 0; return ieee80211_link_use_reserved_context(&sdata->deflink); } - if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, - &sdata->deflink.csa_chandef)) + if (!cfg80211_chandef_identical(&link_data->conf->chandef, + &link_data->csa_chandef)) return -EINVAL; sdata->vif.bss_conf.csa_active = false; @@ -3687,57 +3659,53 @@ static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) changed |= BSS_CHANGED_EHT_PUNCTURING; } - ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); + ieee80211_link_info_change_notify(sdata, link_data, changed); - if (sdata->deflink.csa_block_tx) { + if (link_data->csa_block_tx) { ieee80211_wake_vif_queues(local, sdata, IEEE80211_QUEUE_STOP_REASON_CSA); - sdata->deflink.csa_block_tx = false; + link_data->csa_block_tx = false; } - err = drv_post_channel_switch(sdata); + err = drv_post_channel_switch(link_data); if (err) return err; - cfg80211_ch_switch_notify(sdata->dev, &sdata->deflink.csa_chandef, 0, - sdata->vif.bss_conf.eht_puncturing); + cfg80211_ch_switch_notify(sdata->dev, &link_data->csa_chandef, + link_data->link_id, + link_data->conf->eht_puncturing); return 0; } -static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) +static void ieee80211_csa_finalize(struct ieee80211_link_data *link_data) { - if (__ieee80211_csa_finalize(sdata)) { + struct ieee80211_sub_if_data *sdata = link_data->sdata; + + if (__ieee80211_csa_finalize(link_data)) { sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, GFP_KERNEL); } } -void ieee80211_csa_finalize_work(struct work_struct *work) +void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work) { - struct ieee80211_sub_if_data *sdata = - container_of(work, struct ieee80211_sub_if_data, - deflink.csa_finalize_work); + struct ieee80211_link_data *link = + container_of(work, struct ieee80211_link_data, csa_finalize_work); + struct ieee80211_sub_if_data *sdata = link->sdata; struct ieee80211_local *local = sdata->local; - sdata_lock(sdata); - mutex_lock(&local->mtx); - mutex_lock(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); /* AP might have been stopped while waiting for the lock. */ - if (!sdata->vif.bss_conf.csa_active) - goto unlock; + if (!link->conf->csa_active) + return; if (!ieee80211_sdata_running(sdata)) - goto unlock; - - ieee80211_csa_finalize(sdata); + return; -unlock: - mutex_unlock(&local->chanctx_mtx); - mutex_unlock(&local->mtx); - sdata_unlock(sdata); + ieee80211_csa_finalize(link); } static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, @@ -3893,8 +3861,7 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, u64 changed = 0; int err; - sdata_assert_lock(sdata); - lockdep_assert_held(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); if (!list_empty(&local->roc_list) || local->scanning) return -EBUSY; @@ -3910,9 +3877,8 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, if (sdata->vif.bss_conf.csa_active) return -EBUSY; - mutex_lock(&local->chanctx_mtx); conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf, - lockdep_is_held(&local->chanctx_mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); if (!conf) { err = -EBUSY; goto out; @@ -3982,11 +3948,10 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, drv_channel_switch_beacon(sdata, ¶ms->chandef); } else { /* if the beacon didn't change, we can finalize immediately */ - ieee80211_csa_finalize(sdata); + ieee80211_csa_finalize(&sdata->deflink); } out: - mutex_unlock(&local->chanctx_mtx); return err; } @@ -3995,18 +3960,15 @@ int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = sdata->local; - int err; - mutex_lock(&local->mtx); - err = __ieee80211_channel_switch(wiphy, dev, params); - mutex_unlock(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); - return err; + return __ieee80211_channel_switch(wiphy, dev, params); } u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) { - lockdep_assert_held(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); local->roc_cookie_counter++; @@ -4038,7 +4000,8 @@ int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, return -ENOMEM; } - IEEE80211_SKB_CB(skb)->ack_frame_id = id; + IEEE80211_SKB_CB(skb)->status_data_idr = 1; + IEEE80211_SKB_CB(skb)->status_data = id; *cookie = ieee80211_mgmt_tx_cookie(local); IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; @@ -4088,11 +4051,17 @@ ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) { struct ieee80211_local *local = wiphy_priv(wiphy); + int ret; if (local->started) return -EOPNOTSUPP; - return drv_set_antenna(local, tx_ant, rx_ant); + ret = drv_set_antenna(local, tx_ant, rx_ant); + if (ret) + return ret; + + local->rx_chains = hweight8(rx_ant); + return 0; } static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) @@ -4134,7 +4103,7 @@ static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, int ret; /* the lock is needed to assign the cookie later */ - mutex_lock(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); rcu_read_lock(); sta = sta_info_get_bss(sdata, peer); @@ -4205,7 +4174,6 @@ static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, ret = 0; unlock: rcu_read_unlock(); - mutex_unlock(&local->mtx); return ret; } @@ -4563,7 +4531,8 @@ static int ieee80211_set_tid_config(struct wiphy *wiphy, { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct sta_info *sta; - int ret; + + lockdep_assert_wiphy(sdata->local->hw.wiphy); if (!sdata->local->ops->set_tid_config) return -EOPNOTSUPP; @@ -4571,17 +4540,11 @@ static int ieee80211_set_tid_config(struct wiphy *wiphy, if (!tid_conf->peer) return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); - mutex_lock(&sdata->local->sta_mtx); sta = sta_info_get_bss(sdata, tid_conf->peer); - if (!sta) { - mutex_unlock(&sdata->local->sta_mtx); + if (!sta) return -ENOENT; - } - - ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); - mutex_unlock(&sdata->local->sta_mtx); - return ret; + return drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); } static int ieee80211_reset_tid_config(struct wiphy *wiphy, @@ -4590,7 +4553,8 @@ static int ieee80211_reset_tid_config(struct wiphy *wiphy, { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct sta_info *sta; - int ret; + + lockdep_assert_wiphy(sdata->local->hw.wiphy); if (!sdata->local->ops->reset_tid_config) return -EOPNOTSUPP; @@ -4598,17 +4562,11 @@ static int ieee80211_reset_tid_config(struct wiphy *wiphy, if (!peer) return drv_reset_tid_config(sdata->local, sdata, NULL, tids); - mutex_lock(&sdata->local->sta_mtx); sta = sta_info_get_bss(sdata, peer); - if (!sta) { - mutex_unlock(&sdata->local->sta_mtx); + if (!sta) return -ENOENT; - } - ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); - mutex_unlock(&sdata->local->sta_mtx); - - return ret; + return drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); } static int ieee80211_set_sar_specs(struct wiphy *wiphy, @@ -4694,6 +4652,8 @@ static void ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata, u8 color, int enable, u64 changed) { + lockdep_assert_wiphy(sdata->local->hw.wiphy); + sdata->vif.bss_conf.he_bss_color.color = color; sdata->vif.bss_conf.he_bss_color.enabled = enable; changed |= BSS_CHANGED_HE_BSS_COLOR; @@ -4703,7 +4663,6 @@ ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata, if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) { struct ieee80211_sub_if_data *child; - mutex_lock(&sdata->local->iflist_mtx); list_for_each_entry(child, &sdata->local->interfaces, list) { if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) { child->vif.bss_conf.he_bss_color.color = color; @@ -4713,7 +4672,6 @@ ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata, BSS_CHANGED_HE_BSS_COLOR); } } - mutex_unlock(&sdata->local->iflist_mtx); } } @@ -4723,8 +4681,7 @@ static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata) u64 changed = 0; int err; - sdata_assert_lock(sdata); - lockdep_assert_held(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); sdata->vif.bss_conf.color_change_active = false; @@ -4742,28 +4699,24 @@ static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata) return 0; } -void ieee80211_color_change_finalize_work(struct work_struct *work) +void ieee80211_color_change_finalize_work(struct wiphy *wiphy, + struct wiphy_work *work) { struct ieee80211_sub_if_data *sdata = container_of(work, struct ieee80211_sub_if_data, deflink.color_change_finalize_work); struct ieee80211_local *local = sdata->local; - sdata_lock(sdata); - mutex_lock(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); /* AP might have been stopped while waiting for the lock. */ if (!sdata->vif.bss_conf.color_change_active) - goto unlock; + return; if (!ieee80211_sdata_running(sdata)) - goto unlock; + return; ieee80211_color_change_finalize(sdata); - -unlock: - mutex_unlock(&local->mtx); - sdata_unlock(sdata); } void ieee80211_color_collision_detection_work(struct work_struct *work) @@ -4774,17 +4727,15 @@ void ieee80211_color_collision_detection_work(struct work_struct *work) color_collision_detect_work); struct ieee80211_sub_if_data *sdata = link->sdata; - sdata_lock(sdata); cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap); - sdata_unlock(sdata); } void ieee80211_color_change_finish(struct ieee80211_vif *vif) { struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); - ieee80211_queue_work(&sdata->local->hw, - &sdata->deflink.color_change_finalize_work); + wiphy_work_queue(sdata->local->hw.wiphy, + &sdata->deflink.color_change_finalize_work); } EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); @@ -4820,13 +4771,11 @@ ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, u64 changed = 0; int err; - sdata_assert_lock(sdata); + lockdep_assert_wiphy(local->hw.wiphy); if (sdata->vif.bss_conf.nontransmitted) return -EINVAL; - mutex_lock(&local->mtx); - /* don't allow another color change if one is already active or if csa * is active */ @@ -4851,7 +4800,6 @@ ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, ieee80211_color_change_finalize(sdata); out: - mutex_unlock(&local->mtx); return err; } @@ -4873,16 +4821,13 @@ static int ieee80211_add_intf_link(struct wiphy *wiphy, unsigned int link_id) { struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); - int res; + + lockdep_assert_wiphy(sdata->local->hw.wiphy); if (wdev->use_4addr) return -EOPNOTSUPP; - mutex_lock(&sdata->local->mtx); - res = ieee80211_vif_set_links(sdata, wdev->valid_links, 0); - mutex_unlock(&sdata->local->mtx); - - return res; + return ieee80211_vif_set_links(sdata, wdev->valid_links, 0); } static void ieee80211_del_intf_link(struct wiphy *wiphy, @@ -4891,9 +4836,9 @@ static void ieee80211_del_intf_link(struct wiphy *wiphy, { struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); - mutex_lock(&sdata->local->mtx); + lockdep_assert_wiphy(sdata->local->hw.wiphy); + ieee80211_vif_set_links(sdata, wdev->valid_links, 0); - mutex_unlock(&sdata->local->mtx); } static int sta_add_link_station(struct ieee80211_local *local, @@ -4933,13 +4878,10 @@ ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev, { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = wiphy_priv(wiphy); - int ret; - mutex_lock(&sdata->local->sta_mtx); - ret = sta_add_link_station(local, sdata, params); - mutex_unlock(&sdata->local->sta_mtx); + lockdep_assert_wiphy(sdata->local->hw.wiphy); - return ret; + return sta_add_link_station(local, sdata, params); } static int sta_mod_link_station(struct ieee80211_local *local, @@ -4964,13 +4906,10 @@ ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev, { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = wiphy_priv(wiphy); - int ret; - mutex_lock(&sdata->local->sta_mtx); - ret = sta_mod_link_station(local, sdata, params); - mutex_unlock(&sdata->local->sta_mtx); + lockdep_assert_wiphy(sdata->local->hw.wiphy); - return ret; + return sta_mod_link_station(local, sdata, params); } static int sta_del_link_station(struct ieee80211_sub_if_data *sdata, @@ -4999,13 +4938,10 @@ ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev, struct link_station_del_parameters *params) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - int ret; - mutex_lock(&sdata->local->sta_mtx); - ret = sta_del_link_station(sdata, params); - mutex_unlock(&sdata->local->sta_mtx); + lockdep_assert_wiphy(sdata->local->hw.wiphy); - return ret; + return sta_del_link_station(sdata, params); } static int ieee80211_set_hw_timestamp(struct wiphy *wiphy, diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c index 68952752b599..1d928f29ad6f 100644 --- a/net/mac80211/chan.c +++ b/net/mac80211/chan.c @@ -18,7 +18,7 @@ static int ieee80211_chanctx_num_assigned(struct ieee80211_local *local, struct ieee80211_link_data *link; int num = 0; - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); list_for_each_entry(link, &ctx->assigned_links, assigned_chanctx_list) num++; @@ -32,7 +32,7 @@ static int ieee80211_chanctx_num_reserved(struct ieee80211_local *local, struct ieee80211_link_data *link; int num = 0; - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); list_for_each_entry(link, &ctx->reserved_links, reserved_chanctx_list) num++; @@ -52,7 +52,7 @@ static int ieee80211_num_chanctx(struct ieee80211_local *local) struct ieee80211_chanctx *ctx; int num = 0; - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); list_for_each_entry(ctx, &local->chanctx_list, list) num++; @@ -62,7 +62,8 @@ static int ieee80211_num_chanctx(struct ieee80211_local *local) static bool ieee80211_can_create_new_chanctx(struct ieee80211_local *local) { - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); + return ieee80211_num_chanctx(local) < ieee80211_max_num_channels(local); } @@ -73,7 +74,7 @@ ieee80211_link_get_chanctx(struct ieee80211_link_data *link) struct ieee80211_chanctx_conf *conf; conf = rcu_dereference_protected(link->conf->chanctx_conf, - lockdep_is_held(&local->chanctx_mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); if (!conf) return NULL; @@ -87,7 +88,7 @@ ieee80211_chanctx_reserved_chandef(struct ieee80211_local *local, { struct ieee80211_link_data *link; - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); list_for_each_entry(link, &ctx->reserved_links, reserved_chanctx_list) { @@ -110,7 +111,7 @@ ieee80211_chanctx_non_reserved_chandef(struct ieee80211_local *local, { struct ieee80211_link_data *link; - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); list_for_each_entry(link, &ctx->assigned_links, assigned_chanctx_list) { @@ -136,7 +137,7 @@ ieee80211_chanctx_combined_chandef(struct ieee80211_local *local, struct ieee80211_chanctx *ctx, const struct cfg80211_chan_def *compat) { - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); compat = ieee80211_chanctx_reserved_chandef(local, ctx, compat); if (!compat) @@ -154,7 +155,7 @@ ieee80211_chanctx_can_reserve_chandef(struct ieee80211_local *local, struct ieee80211_chanctx *ctx, const struct cfg80211_chan_def *def) { - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); if (ieee80211_chanctx_combined_chandef(local, ctx, def)) return true; @@ -173,7 +174,7 @@ ieee80211_find_reservation_chanctx(struct ieee80211_local *local, { struct ieee80211_chanctx *ctx; - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); if (mode == IEEE80211_CHANCTX_EXCLUSIVE) return NULL; @@ -361,7 +362,7 @@ _ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local, enum nl80211_chan_width max_bw; struct cfg80211_chan_def min_def; - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); /* don't optimize non-20MHz based and radar_enabled confs */ if (ctx->conf.def.width == NL80211_CHAN_WIDTH_5 || @@ -537,7 +538,7 @@ ieee80211_find_chanctx(struct ieee80211_local *local, { struct ieee80211_chanctx *ctx; - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); if (mode == IEEE80211_CHANCTX_EXCLUSIVE) return NULL; @@ -572,7 +573,7 @@ bool ieee80211_is_radar_required(struct ieee80211_local *local) { struct ieee80211_sub_if_data *sdata; - lockdep_assert_held(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); rcu_read_lock(); list_for_each_entry_rcu(sdata, &local->interfaces, list) { @@ -602,8 +603,7 @@ ieee80211_chanctx_radar_required(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata; bool required = false; - lockdep_assert_held(&local->chanctx_mtx); - lockdep_assert_held(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); rcu_read_lock(); list_for_each_entry_rcu(sdata, &local->interfaces, list) { @@ -641,7 +641,7 @@ ieee80211_alloc_chanctx(struct ieee80211_local *local, { struct ieee80211_chanctx *ctx; - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); ctx = kzalloc(sizeof(*ctx) + local->hw.chanctx_data_size, GFP_KERNEL); if (!ctx) @@ -665,8 +665,7 @@ static int ieee80211_add_chanctx(struct ieee80211_local *local, u32 changed; int err; - lockdep_assert_held(&local->mtx); - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); if (!local->use_chanctx) local->hw.conf.radar_enabled = ctx->conf.radar_enabled; @@ -698,8 +697,7 @@ ieee80211_new_chanctx(struct ieee80211_local *local, struct ieee80211_chanctx *ctx; int err; - lockdep_assert_held(&local->mtx); - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); ctx = ieee80211_alloc_chanctx(local, chandef, mode); if (!ctx) @@ -718,7 +716,7 @@ ieee80211_new_chanctx(struct ieee80211_local *local, static void ieee80211_del_chanctx(struct ieee80211_local *local, struct ieee80211_chanctx *ctx) { - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); if (!local->use_chanctx) { struct cfg80211_chan_def *chandef = &local->_oper_chandef; @@ -753,7 +751,7 @@ static void ieee80211_del_chanctx(struct ieee80211_local *local, static void ieee80211_free_chanctx(struct ieee80211_local *local, struct ieee80211_chanctx *ctx) { - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); WARN_ON_ONCE(ieee80211_chanctx_refcount(local, ctx) != 0); @@ -770,7 +768,7 @@ void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local, const struct cfg80211_chan_def *compat = NULL; struct sta_info *sta; - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); rcu_read_lock(); list_for_each_entry_rcu(sdata, &local->interfaces, list) { @@ -833,9 +831,7 @@ static void ieee80211_recalc_radar_chanctx(struct ieee80211_local *local, { bool radar_enabled; - lockdep_assert_held(&local->chanctx_mtx); - /* for ieee80211_is_radar_required */ - lockdep_assert_held(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); radar_enabled = ieee80211_chanctx_radar_required(local, chanctx); @@ -865,7 +861,7 @@ static int ieee80211_assign_link_chanctx(struct ieee80211_link_data *link, return -ENOTSUPP; conf = rcu_dereference_protected(link->conf->chanctx_conf, - lockdep_is_held(&local->chanctx_mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); if (conf) { curr_ctx = container_of(conf, struct ieee80211_chanctx, conf); @@ -920,7 +916,7 @@ void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata; u8 rx_chains_static, rx_chains_dynamic; - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); rx_chains_static = 1; rx_chains_dynamic = 1; @@ -1023,7 +1019,7 @@ __ieee80211_link_copy_chanctx_to_vlans(struct ieee80211_link_data *link, if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_AP)) return; - lockdep_assert_held(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); /* Check that conf exists, even when clearing this function * must be called with the AP's channel context still there @@ -1032,7 +1028,7 @@ __ieee80211_link_copy_chanctx_to_vlans(struct ieee80211_link_data *link, * to a channel context that has already been freed. */ conf = rcu_dereference_protected(link_conf->chanctx_conf, - lockdep_is_held(&local->chanctx_mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); WARN_ON(!conf); if (clear) @@ -1056,11 +1052,9 @@ void ieee80211_link_copy_chanctx_to_vlans(struct ieee80211_link_data *link, { struct ieee80211_local *local = link->sdata->local; - mutex_lock(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); __ieee80211_link_copy_chanctx_to_vlans(link, clear); - - mutex_unlock(&local->chanctx_mtx); } int ieee80211_link_unreserve_chanctx(struct ieee80211_link_data *link) @@ -1068,7 +1062,7 @@ int ieee80211_link_unreserve_chanctx(struct ieee80211_link_data *link) struct ieee80211_sub_if_data *sdata = link->sdata; struct ieee80211_chanctx *ctx = link->reserved_chanctx; - lockdep_assert_held(&sdata->local->chanctx_mtx); + lockdep_assert_wiphy(sdata->local->hw.wiphy); if (WARN_ON(!ctx)) return -EINVAL; @@ -1108,7 +1102,7 @@ int ieee80211_link_reserve_chanctx(struct ieee80211_link_data *link, struct ieee80211_local *local = sdata->local; struct ieee80211_chanctx *new_ctx, *curr_ctx, *ctx; - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); curr_ctx = ieee80211_link_get_chanctx(link); if (curr_ctx && local->use_chanctx && !local->ops->switch_vif_chanctx) @@ -1206,8 +1200,8 @@ ieee80211_link_chanctx_reservation_complete(struct ieee80211_link_data *link) case NL80211_IFTYPE_AP: case NL80211_IFTYPE_MESH_POINT: case NL80211_IFTYPE_OCB: - ieee80211_queue_work(&sdata->local->hw, - &link->csa_finalize_work); + wiphy_work_queue(sdata->local->hw.wiphy, + &link->csa_finalize_work); break; case NL80211_IFTYPE_STATION: wiphy_delayed_work_queue(sdata->local->hw.wiphy, @@ -1265,8 +1259,7 @@ ieee80211_link_use_reserved_reassign(struct ieee80211_link_data *link) u64 changed = 0; int err; - lockdep_assert_held(&local->mtx); - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); new_ctx = link->reserved_chanctx; old_ctx = ieee80211_link_get_chanctx(link); @@ -1390,7 +1383,7 @@ ieee80211_link_has_in_place_reservation(struct ieee80211_link_data *link) struct ieee80211_sub_if_data *sdata = link->sdata; struct ieee80211_chanctx *old_ctx, *new_ctx; - lockdep_assert_held(&sdata->local->chanctx_mtx); + lockdep_assert_wiphy(sdata->local->hw.wiphy); new_ctx = link->reserved_chanctx; old_ctx = ieee80211_link_get_chanctx(link); @@ -1415,8 +1408,7 @@ static int ieee80211_chsw_switch_hwconf(struct ieee80211_local *local, { const struct cfg80211_chan_def *chandef; - lockdep_assert_held(&local->mtx); - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); chandef = ieee80211_chanctx_reserved_chandef(local, new_ctx, NULL); if (WARN_ON(!chandef)) @@ -1437,8 +1429,7 @@ static int ieee80211_chsw_switch_vifs(struct ieee80211_local *local, struct ieee80211_chanctx *ctx, *old_ctx; int i, err; - lockdep_assert_held(&local->mtx); - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); vif_chsw = kcalloc(n_vifs, sizeof(vif_chsw[0]), GFP_KERNEL); if (!vif_chsw) @@ -1482,8 +1473,7 @@ static int ieee80211_chsw_switch_ctxs(struct ieee80211_local *local) struct ieee80211_chanctx *ctx; int err; - lockdep_assert_held(&local->mtx); - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); list_for_each_entry(ctx, &local->chanctx_list, list) { if (ctx->replace_state != IEEE80211_CHANCTX_REPLACES_OTHER) @@ -1523,8 +1513,7 @@ static int ieee80211_vif_use_reserved_switch(struct ieee80211_local *local) int err, n_assigned, n_reserved, n_ready; int n_ctx = 0, n_vifs_switch = 0, n_vifs_assign = 0, n_vifs_ctxless = 0; - lockdep_assert_held(&local->mtx); - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); /* * If there are 2 independent pairs of channel contexts performing @@ -1783,10 +1772,10 @@ static void __ieee80211_link_release_channel(struct ieee80211_link_data *link) struct ieee80211_chanctx *ctx; bool use_reserved_switch = false; - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); conf = rcu_dereference_protected(link_conf->chanctx_conf, - lockdep_is_held(&local->chanctx_mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); if (!conf) return; @@ -1821,7 +1810,7 @@ int ieee80211_link_use_channel(struct ieee80211_link_data *link, u8 radar_detect_width = 0; int ret; - lockdep_assert_held(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); if (sdata->vif.active_links && !(sdata->vif.active_links & BIT(link->link_id))) { @@ -1829,8 +1818,6 @@ int ieee80211_link_use_channel(struct ieee80211_link_data *link, return 0; } - mutex_lock(&local->chanctx_mtx); - ret = cfg80211_chandef_dfs_required(local->hw.wiphy, chandef, sdata->wdev.iftype); @@ -1872,7 +1859,6 @@ int ieee80211_link_use_channel(struct ieee80211_link_data *link, if (ret) link->radar_required = false; - mutex_unlock(&local->chanctx_mtx); return ret; } @@ -1884,8 +1870,7 @@ int ieee80211_link_use_reserved_context(struct ieee80211_link_data *link) struct ieee80211_chanctx *old_ctx; int err; - lockdep_assert_held(&local->mtx); - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); new_ctx = link->reserved_chanctx; old_ctx = ieee80211_link_get_chanctx(link); @@ -1948,51 +1933,40 @@ int ieee80211_link_change_bandwidth(struct ieee80211_link_data *link, struct ieee80211_chanctx_conf *conf; struct ieee80211_chanctx *ctx; const struct cfg80211_chan_def *compat; - int ret; + + lockdep_assert_wiphy(local->hw.wiphy); if (!cfg80211_chandef_usable(sdata->local->hw.wiphy, chandef, IEEE80211_CHAN_DISABLED)) return -EINVAL; - mutex_lock(&local->chanctx_mtx); - if (cfg80211_chandef_identical(chandef, &link_conf->chandef)) { - ret = 0; - goto out; - } + if (cfg80211_chandef_identical(chandef, &link_conf->chandef)) + return 0; if (chandef->width == NL80211_CHAN_WIDTH_20_NOHT || - link_conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT) { - ret = -EINVAL; - goto out; - } + link_conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT) + return -EINVAL; conf = rcu_dereference_protected(link_conf->chanctx_conf, - lockdep_is_held(&local->chanctx_mtx)); - if (!conf) { - ret = -EINVAL; - goto out; - } + lockdep_is_held(&local->hw.wiphy->mtx)); + if (!conf) + return -EINVAL; ctx = container_of(conf, struct ieee80211_chanctx, conf); compat = cfg80211_chandef_compatible(&conf->def, chandef); - if (!compat) { - ret = -EINVAL; - goto out; - } + if (!compat) + return -EINVAL; switch (ctx->replace_state) { case IEEE80211_CHANCTX_REPLACE_NONE: - if (!ieee80211_chanctx_reserved_chandef(local, ctx, compat)) { - ret = -EBUSY; - goto out; - } + if (!ieee80211_chanctx_reserved_chandef(local, ctx, compat)) + return -EBUSY; break; case IEEE80211_CHANCTX_WILL_BE_REPLACED: /* TODO: Perhaps the bandwidth change could be treated as a * reservation itself? */ - ret = -EBUSY; - goto out; + return -EBUSY; case IEEE80211_CHANCTX_REPLACES_OTHER: /* channel context that is going to replace another channel * context doesn't really exist and shouldn't be assigned @@ -2006,22 +1980,17 @@ int ieee80211_link_change_bandwidth(struct ieee80211_link_data *link, ieee80211_recalc_chanctx_chantype(local, ctx); *changed |= BSS_CHANGED_BANDWIDTH; - ret = 0; - out: - mutex_unlock(&local->chanctx_mtx); - return ret; + return 0; } void ieee80211_link_release_channel(struct ieee80211_link_data *link) { struct ieee80211_sub_if_data *sdata = link->sdata; - mutex_lock(&sdata->local->chanctx_mtx); - if (rcu_access_pointer(link->conf->chanctx_conf)) { - lockdep_assert_held(&sdata->local->mtx); + lockdep_assert_wiphy(sdata->local->hw.wiphy); + + if (rcu_access_pointer(link->conf->chanctx_conf)) __ieee80211_link_release_channel(link); - } - mutex_unlock(&sdata->local->chanctx_mtx); } void ieee80211_link_vlan_copy_chanctx(struct ieee80211_link_data *link) @@ -2034,20 +2003,19 @@ void ieee80211_link_vlan_copy_chanctx(struct ieee80211_link_data *link) struct ieee80211_sub_if_data *ap; struct ieee80211_chanctx_conf *conf; + lockdep_assert_wiphy(local->hw.wiphy); + if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_AP_VLAN || !sdata->bss)) return; ap = container_of(sdata->bss, struct ieee80211_sub_if_data, u.ap); - mutex_lock(&local->chanctx_mtx); - rcu_read_lock(); ap_conf = rcu_dereference(ap->vif.link_conf[link_id]); conf = rcu_dereference_protected(ap_conf->chanctx_conf, - lockdep_is_held(&local->chanctx_mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); rcu_assign_pointer(link_conf->chanctx_conf, conf); rcu_read_unlock(); - mutex_unlock(&local->chanctx_mtx); } void ieee80211_iter_chan_contexts_atomic( diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c index 207f772bd8ce..b575ae90e57f 100644 --- a/net/mac80211/debugfs.c +++ b/net/mac80211/debugfs.c @@ -4,7 +4,7 @@ * * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> * Copyright 2013-2014 Intel Mobile Communications GmbH - * Copyright (C) 2018 - 2019, 2021-2022 Intel Corporation + * Copyright (C) 2018 - 2019, 2021-2023 Intel Corporation */ #include <linux/debugfs.h> @@ -288,10 +288,10 @@ static ssize_t aql_txq_limit_write(struct file *file, q_limit_low_old = local->aql_txq_limit_low[ac]; q_limit_high_old = local->aql_txq_limit_high[ac]; + wiphy_lock(local->hw.wiphy); local->aql_txq_limit_low[ac] = q_limit_low; local->aql_txq_limit_high[ac] = q_limit_high; - mutex_lock(&local->sta_mtx); list_for_each_entry(sta, &local->sta_list, list) { /* If a sta has customized queue limits, keep it */ if (sta->airtime[ac].aql_limit_low == q_limit_low_old && @@ -300,7 +300,8 @@ static ssize_t aql_txq_limit_write(struct file *file, sta->airtime[ac].aql_limit_high = q_limit_high; } } - mutex_unlock(&local->sta_mtx); + wiphy_unlock(local->hw.wiphy); + return count; } @@ -594,9 +595,9 @@ static ssize_t format_devstat_counter(struct ieee80211_local *local, char buf[20]; int res; - rtnl_lock(); + wiphy_lock(local->hw.wiphy); res = drv_get_stats(local, &stats); - rtnl_unlock(); + wiphy_unlock(local->hw.wiphy); if (res) return res; res = printvalue(&stats, buf, sizeof(buf)); diff --git a/net/mac80211/debugfs_key.c b/net/mac80211/debugfs_key.c index 16a04330e7dc..7e54da508765 100644 --- a/net/mac80211/debugfs_key.c +++ b/net/mac80211/debugfs_key.c @@ -4,7 +4,7 @@ * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz> * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> * Copyright (C) 2015 Intel Deutschland GmbH - * Copyright (C) 2021-2022 Intel Corporation + * Copyright (C) 2021-2023 Intel Corporation */ #include <linux/kobject.h> @@ -378,14 +378,14 @@ void ieee80211_debugfs_key_update_default(struct ieee80211_sub_if_data *sdata) if (!sdata->vif.debugfs_dir) return; - lockdep_assert_held(&sdata->local->key_mtx); + lockdep_assert_wiphy(sdata->local->hw.wiphy); debugfs_remove(sdata->debugfs.default_unicast_key); sdata->debugfs.default_unicast_key = NULL; if (sdata->default_unicast_key) { - key = key_mtx_dereference(sdata->local, - sdata->default_unicast_key); + key = wiphy_dereference(sdata->local->hw.wiphy, + sdata->default_unicast_key); sprintf(buf, "../keys/%d", key->debugfs.cnt); sdata->debugfs.default_unicast_key = debugfs_create_symlink("default_unicast_key", @@ -396,8 +396,8 @@ void ieee80211_debugfs_key_update_default(struct ieee80211_sub_if_data *sdata) sdata->debugfs.default_multicast_key = NULL; if (sdata->deflink.default_multicast_key) { - key = key_mtx_dereference(sdata->local, - sdata->deflink.default_multicast_key); + key = wiphy_dereference(sdata->local->hw.wiphy, + sdata->deflink.default_multicast_key); sprintf(buf, "../keys/%d", key->debugfs.cnt); sdata->debugfs.default_multicast_key = debugfs_create_symlink("default_multicast_key", @@ -413,8 +413,8 @@ void ieee80211_debugfs_key_add_mgmt_default(struct ieee80211_sub_if_data *sdata) if (!sdata->vif.debugfs_dir) return; - key = key_mtx_dereference(sdata->local, - sdata->deflink.default_mgmt_key); + key = wiphy_dereference(sdata->local->hw.wiphy, + sdata->deflink.default_mgmt_key); if (key) { sprintf(buf, "../keys/%d", key->debugfs.cnt); sdata->debugfs.default_mgmt_key = @@ -442,8 +442,8 @@ ieee80211_debugfs_key_add_beacon_default(struct ieee80211_sub_if_data *sdata) if (!sdata->vif.debugfs_dir) return; - key = key_mtx_dereference(sdata->local, - sdata->deflink.default_beacon_key); + key = wiphy_dereference(sdata->local->hw.wiphy, + sdata->deflink.default_beacon_key); if (key) { sprintf(buf, "../keys/%d", key->debugfs.cnt); sdata->debugfs.default_beacon_key = diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c index 63250286dc8b..14a40348959a 100644 --- a/net/mac80211/debugfs_netdev.c +++ b/net/mac80211/debugfs_netdev.c @@ -22,18 +22,18 @@ #include "debugfs_netdev.h" #include "driver-ops.h" -static ssize_t ieee80211_if_read( - void *data, +static ssize_t ieee80211_if_read_sdata( + struct ieee80211_sub_if_data *sdata, char __user *userbuf, size_t count, loff_t *ppos, - ssize_t (*format)(const void *, char *, int)) + ssize_t (*format)(const struct ieee80211_sub_if_data *sdata, char *, int)) { char buf[200]; ssize_t ret = -EINVAL; - read_lock(&dev_base_lock); - ret = (*format)(data, buf, sizeof(buf)); - read_unlock(&dev_base_lock); + wiphy_lock(sdata->local->hw.wiphy); + ret = (*format)(sdata, buf, sizeof(buf)); + wiphy_unlock(sdata->local->hw.wiphy); if (ret >= 0) ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret); @@ -41,11 +41,11 @@ static ssize_t ieee80211_if_read( return ret; } -static ssize_t ieee80211_if_write( - void *data, +static ssize_t ieee80211_if_write_sdata( + struct ieee80211_sub_if_data *sdata, const char __user *userbuf, size_t count, loff_t *ppos, - ssize_t (*write)(void *, const char *, int)) + ssize_t (*write)(struct ieee80211_sub_if_data *sdata, const char *, int)) { char buf[64]; ssize_t ret; @@ -57,9 +57,51 @@ static ssize_t ieee80211_if_write( return -EFAULT; buf[count] = '\0'; - rtnl_lock(); - ret = (*write)(data, buf, count); - rtnl_unlock(); + wiphy_lock(sdata->local->hw.wiphy); + ret = (*write)(sdata, buf, count); + wiphy_unlock(sdata->local->hw.wiphy); + + return ret; +} + +static ssize_t ieee80211_if_read_link( + struct ieee80211_link_data *link, + char __user *userbuf, + size_t count, loff_t *ppos, + ssize_t (*format)(const struct ieee80211_link_data *link, char *, int)) +{ + char buf[200]; + ssize_t ret = -EINVAL; + + wiphy_lock(link->sdata->local->hw.wiphy); + ret = (*format)(link, buf, sizeof(buf)); + wiphy_unlock(link->sdata->local->hw.wiphy); + + if (ret >= 0) + ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret); + + return ret; +} + +static ssize_t ieee80211_if_write_link( + struct ieee80211_link_data *link, + const char __user *userbuf, + size_t count, loff_t *ppos, + ssize_t (*write)(struct ieee80211_link_data *link, const char *, int)) +{ + char buf[64]; + ssize_t ret; + + if (count >= sizeof(buf)) + return -E2BIG; + + if (copy_from_user(buf, userbuf, count)) + return -EFAULT; + buf[count] = '\0'; + + wiphy_lock(link->sdata->local->hw.wiphy); + ret = (*write)(link, buf, count); + wiphy_unlock(link->sdata->local->hw.wiphy); return ret; } @@ -126,41 +168,37 @@ static const struct file_operations name##_ops = { \ .llseek = generic_file_llseek, \ } -#define _IEEE80211_IF_FILE_R_FN(name, type) \ +#define _IEEE80211_IF_FILE_R_FN(name) \ static ssize_t ieee80211_if_read_##name(struct file *file, \ char __user *userbuf, \ size_t count, loff_t *ppos) \ { \ - ssize_t (*fn)(const void *, char *, int) = (void *) \ - ((ssize_t (*)(const type, char *, int)) \ - ieee80211_if_fmt_##name); \ - return ieee80211_if_read(file->private_data, \ - userbuf, count, ppos, fn); \ + return ieee80211_if_read_sdata(file->private_data, \ + userbuf, count, ppos, \ + ieee80211_if_fmt_##name); \ } -#define _IEEE80211_IF_FILE_W_FN(name, type) \ +#define _IEEE80211_IF_FILE_W_FN(name) \ static ssize_t ieee80211_if_write_##name(struct file *file, \ const char __user *userbuf, \ size_t count, loff_t *ppos) \ { \ - ssize_t (*fn)(void *, const char *, int) = (void *) \ - ((ssize_t (*)(type, const char *, int)) \ - ieee80211_if_parse_##name); \ - return ieee80211_if_write(file->private_data, userbuf, count, \ - ppos, fn); \ + return ieee80211_if_write_sdata(file->private_data, userbuf, \ + count, ppos, \ + ieee80211_if_parse_##name); \ } #define IEEE80211_IF_FILE_R(name) \ - _IEEE80211_IF_FILE_R_FN(name, struct ieee80211_sub_if_data *) \ + _IEEE80211_IF_FILE_R_FN(name) \ _IEEE80211_IF_FILE_OPS(name, ieee80211_if_read_##name, NULL) #define IEEE80211_IF_FILE_W(name) \ - _IEEE80211_IF_FILE_W_FN(name, struct ieee80211_sub_if_data *) \ + _IEEE80211_IF_FILE_W_FN(name) \ _IEEE80211_IF_FILE_OPS(name, NULL, ieee80211_if_write_##name) #define IEEE80211_IF_FILE_RW(name) \ - _IEEE80211_IF_FILE_R_FN(name, struct ieee80211_sub_if_data *) \ - _IEEE80211_IF_FILE_W_FN(name, struct ieee80211_sub_if_data *) \ + _IEEE80211_IF_FILE_R_FN(name) \ + _IEEE80211_IF_FILE_W_FN(name) \ _IEEE80211_IF_FILE_OPS(name, ieee80211_if_read_##name, \ ieee80211_if_write_##name) @@ -168,18 +206,37 @@ static ssize_t ieee80211_if_write_##name(struct file *file, \ IEEE80211_IF_FMT_##format(name, struct ieee80211_sub_if_data, field) \ IEEE80211_IF_FILE_R(name) -/* Same but with a link_ prefix in the ops variable name and different type */ +#define _IEEE80211_IF_LINK_R_FN(name) \ +static ssize_t ieee80211_if_read_##name(struct file *file, \ + char __user *userbuf, \ + size_t count, loff_t *ppos) \ +{ \ + return ieee80211_if_read_link(file->private_data, \ + userbuf, count, ppos, \ + ieee80211_if_fmt_##name); \ +} + +#define _IEEE80211_IF_LINK_W_FN(name) \ +static ssize_t ieee80211_if_write_##name(struct file *file, \ + const char __user *userbuf, \ + size_t count, loff_t *ppos) \ +{ \ + return ieee80211_if_write_link(file->private_data, userbuf, \ + count, ppos, \ + ieee80211_if_parse_##name); \ +} + #define IEEE80211_IF_LINK_FILE_R(name) \ - _IEEE80211_IF_FILE_R_FN(name, struct ieee80211_link_data *) \ + _IEEE80211_IF_LINK_R_FN(name) \ _IEEE80211_IF_FILE_OPS(link_##name, ieee80211_if_read_##name, NULL) #define IEEE80211_IF_LINK_FILE_W(name) \ - _IEEE80211_IF_FILE_W_FN(name) \ + _IEEE80211_IF_LINK_W_FN(name) \ _IEEE80211_IF_FILE_OPS(link_##name, NULL, ieee80211_if_write_##name) #define IEEE80211_IF_LINK_FILE_RW(name) \ - _IEEE80211_IF_FILE_R_FN(name, struct ieee80211_link_data *) \ - _IEEE80211_IF_FILE_W_FN(name, struct ieee80211_link_data *) \ + _IEEE80211_IF_LINK_R_FN(name) \ + _IEEE80211_IF_LINK_W_FN(name) \ _IEEE80211_IF_FILE_OPS(link_##name, ieee80211_if_read_##name, \ ieee80211_if_write_##name) @@ -265,7 +322,6 @@ static int ieee80211_set_smps(struct ieee80211_link_data *link, { struct ieee80211_sub_if_data *sdata = link->sdata; struct ieee80211_local *local = sdata->local; - int err; if (sdata->vif.driver_flags & IEEE80211_VIF_DISABLE_SMPS_OVERRIDE) return -EOPNOTSUPP; @@ -283,11 +339,7 @@ static int ieee80211_set_smps(struct ieee80211_link_data *link, if (sdata->vif.type != NL80211_IFTYPE_STATION) return -EOPNOTSUPP; - sdata_lock(sdata); - err = __ieee80211_request_smps_mgd(link->sdata, link, smps_mode); - sdata_unlock(sdata); - - return err; + return __ieee80211_request_smps_mgd(link->sdata, link, smps_mode); } static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = { @@ -359,16 +411,13 @@ static ssize_t ieee80211_if_parse_tkip_mic_test( case NL80211_IFTYPE_STATION: fc |= cpu_to_le16(IEEE80211_FCTL_TODS); /* BSSID SA DA */ - sdata_lock(sdata); if (!sdata->u.mgd.associated) { - sdata_unlock(sdata); dev_kfree_skb(skb); return -ENOTCONN; } memcpy(hdr->addr1, sdata->deflink.u.mgd.bssid, ETH_ALEN); memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN); memcpy(hdr->addr3, addr, ETH_ALEN); - sdata_unlock(sdata); break; default: dev_kfree_skb(skb); diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c index 5a97fb248c85..06e3613bf46b 100644 --- a/net/mac80211/debugfs_sta.c +++ b/net/mac80211/debugfs_sta.c @@ -5,7 +5,7 @@ * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> * Copyright 2013-2014 Intel Mobile Communications GmbH * Copyright(c) 2016 Intel Deutschland GmbH - * Copyright (C) 2018 - 2022 Intel Corporation + * Copyright (C) 2018 - 2023 Intel Corporation */ #include <linux/debugfs.h> @@ -420,6 +420,7 @@ static ssize_t sta_agg_status_write(struct file *file, const char __user *userbu if (ret || tid >= IEEE80211_NUM_TIDS) return -EINVAL; + wiphy_lock(sta->local->hw.wiphy); if (tx) { if (start) ret = ieee80211_start_tx_ba_session(&sta->sta, tid, @@ -431,6 +432,7 @@ static ssize_t sta_agg_status_write(struct file *file, const char __user *userbu 3, true); ret = 0; } + wiphy_unlock(sta->local->hw.wiphy); return ret ?: count; } diff --git a/net/mac80211/driver-ops.c b/net/mac80211/driver-ops.c index 30cd0c905a24..169dbbca54b6 100644 --- a/net/mac80211/driver-ops.c +++ b/net/mac80211/driver-ops.c @@ -15,6 +15,7 @@ int drv_start(struct ieee80211_local *local) int ret; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (WARN_ON(local->started)) return -EALREADY; @@ -35,6 +36,7 @@ int drv_start(struct ieee80211_local *local) void drv_stop(struct ieee80211_local *local) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (WARN_ON(!local->started)) return; @@ -58,6 +60,7 @@ int drv_add_interface(struct ieee80211_local *local, int ret; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_AP_VLAN || (sdata->vif.type == NL80211_IFTYPE_MONITOR && @@ -82,6 +85,7 @@ int drv_change_interface(struct ieee80211_local *local, int ret; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return -EIO; @@ -96,6 +100,7 @@ void drv_remove_interface(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return; @@ -116,6 +121,7 @@ int drv_sta_state(struct ieee80211_local *local, int ret = 0; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); sdata = get_bss_sdata(sdata); if (!check_sdata_in_driver(sdata)) @@ -149,6 +155,7 @@ int drv_sta_set_txpwr(struct ieee80211_local *local, int ret = -EOPNOTSUPP; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); sdata = get_bss_sdata(sdata); if (!check_sdata_in_driver(sdata)) @@ -190,6 +197,7 @@ int drv_conf_tx(struct ieee80211_local *local, int ret = -EOPNOTSUPP; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return -EIO; @@ -223,6 +231,7 @@ u64 drv_get_tsf(struct ieee80211_local *local, u64 ret = -1ULL; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return ret; @@ -239,6 +248,7 @@ void drv_set_tsf(struct ieee80211_local *local, u64 tsf) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return; @@ -254,6 +264,7 @@ void drv_offset_tsf(struct ieee80211_local *local, s64 offset) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return; @@ -268,6 +279,7 @@ void drv_reset_tsf(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return; @@ -285,7 +297,9 @@ int drv_assign_vif_chanctx(struct ieee80211_local *local, { int ret = 0; - drv_verify_link_exists(sdata, link_conf); + might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); + if (!check_sdata_in_driver(sdata)) return -EIO; @@ -312,8 +326,8 @@ void drv_unassign_vif_chanctx(struct ieee80211_local *local, struct ieee80211_chanctx *ctx) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); - drv_verify_link_exists(sdata, link_conf); if (!check_sdata_in_driver(sdata)) return; @@ -340,6 +354,7 @@ int drv_switch_vif_chanctx(struct ieee80211_local *local, int i; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!local->ops->switch_vif_chanctx) return -EOPNOTSUPP; @@ -392,9 +407,7 @@ int drv_ampdu_action(struct ieee80211_local *local, int ret = -EOPNOTSUPP; might_sleep(); - - if (!sdata) - return -EIO; + lockdep_assert_wiphy(local->hw.wiphy); sdata = get_bss_sdata(sdata); if (!check_sdata_in_driver(sdata)) @@ -416,6 +429,7 @@ void drv_link_info_changed(struct ieee80211_local *local, int link_id, u64 changed) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (WARN_ON_ONCE(changed & (BSS_CHANGED_BEACON | BSS_CHANGED_BEACON_ENABLED) && @@ -458,6 +472,7 @@ int drv_set_key(struct ieee80211_local *local, int ret; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); sdata = get_bss_sdata(sdata); if (!check_sdata_in_driver(sdata)) @@ -485,6 +500,7 @@ int drv_change_vif_links(struct ieee80211_local *local, int ret = -EOPNOTSUPP; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return -EIO; @@ -532,6 +548,7 @@ int drv_change_sta_links(struct ieee80211_local *local, int ret = -EOPNOTSUPP; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return -EIO; @@ -547,7 +564,7 @@ int drv_change_sta_links(struct ieee80211_local *local, for_each_set_bit(link_id, &links_to_rem, IEEE80211_MLD_MAX_NUM_LINKS) { link_sta = rcu_dereference_protected(info->link[link_id], - lockdep_is_held(&local->sta_mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); ieee80211_link_sta_debugfs_drv_remove(link_sta); } @@ -563,7 +580,7 @@ int drv_change_sta_links(struct ieee80211_local *local, for_each_set_bit(link_id, &links_to_add, IEEE80211_MLD_MAX_NUM_LINKS) { link_sta = rcu_dereference_protected(info->link[link_id], - lockdep_is_held(&local->sta_mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); ieee80211_link_sta_debugfs_drv_add(link_sta); } diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h index c4505593ba7a..77048b9065e6 100644 --- a/net/mac80211/driver-ops.h +++ b/net/mac80211/driver-ops.h @@ -40,6 +40,9 @@ static inline void drv_tx(struct ieee80211_local *local, static inline void drv_sync_rx_queues(struct ieee80211_local *local, struct sta_info *sta) { + might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); + if (local->ops->sync_rx_queues) { trace_drv_sync_rx_queues(local, sta->sdata, &sta->sta); local->ops->sync_rx_queues(&local->hw); @@ -94,6 +97,7 @@ static inline int drv_suspend(struct ieee80211_local *local, int ret; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); trace_drv_suspend(local); ret = local->ops->suspend(&local->hw, wowlan); @@ -106,6 +110,7 @@ static inline int drv_resume(struct ieee80211_local *local) int ret; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); trace_drv_resume(local); ret = local->ops->resume(&local->hw); @@ -117,6 +122,7 @@ static inline void drv_set_wakeup(struct ieee80211_local *local, bool enabled) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!local->ops->set_wakeup) return; @@ -142,6 +148,7 @@ static inline int drv_config(struct ieee80211_local *local, u32 changed) int ret; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); trace_drv_config(local, changed); ret = local->ops->config(&local->hw, changed); @@ -154,6 +161,7 @@ static inline void drv_vif_cfg_changed(struct ieee80211_local *local, u64 changed) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return; @@ -193,6 +201,7 @@ static inline void drv_configure_filter(struct ieee80211_local *local, u64 multicast) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); trace_drv_configure_filter(local, changed_flags, total_flags, multicast); @@ -207,6 +216,7 @@ static inline void drv_config_iface_filter(struct ieee80211_local *local, unsigned int changed_flags) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); trace_drv_config_iface_filter(local, sdata, filter_flags, changed_flags); @@ -263,6 +273,7 @@ static inline int drv_hw_scan(struct ieee80211_local *local, int ret; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return -EIO; @@ -277,6 +288,7 @@ static inline void drv_cancel_hw_scan(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return; @@ -295,6 +307,7 @@ drv_sched_scan_start(struct ieee80211_local *local, int ret; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return -EIO; @@ -312,6 +325,7 @@ static inline int drv_sched_scan_stop(struct ieee80211_local *local, int ret; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return -EIO; @@ -328,6 +342,7 @@ static inline void drv_sw_scan_start(struct ieee80211_local *local, const u8 *mac_addr) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); trace_drv_sw_scan_start(local, sdata, mac_addr); if (local->ops->sw_scan_start) @@ -339,6 +354,7 @@ static inline void drv_sw_scan_complete(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); trace_drv_sw_scan_complete(local, sdata); if (local->ops->sw_scan_complete) @@ -352,6 +368,7 @@ static inline int drv_get_stats(struct ieee80211_local *local, int ret = -EOPNOTSUPP; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (local->ops->get_stats) ret = local->ops->get_stats(&local->hw, stats); @@ -375,6 +392,7 @@ static inline int drv_set_frag_threshold(struct ieee80211_local *local, int ret = 0; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); trace_drv_set_frag_threshold(local, value); if (local->ops->set_frag_threshold) @@ -389,6 +407,7 @@ static inline int drv_set_rts_threshold(struct ieee80211_local *local, int ret = 0; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); trace_drv_set_rts_threshold(local, value); if (local->ops->set_rts_threshold) @@ -402,6 +421,7 @@ static inline int drv_set_coverage_class(struct ieee80211_local *local, { int ret = 0; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); trace_drv_set_coverage_class(local, value); if (local->ops->set_coverage_class) @@ -435,6 +455,7 @@ static inline int drv_sta_add(struct ieee80211_local *local, int ret = 0; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); sdata = get_bss_sdata(sdata); if (!check_sdata_in_driver(sdata)) @@ -454,6 +475,7 @@ static inline void drv_sta_remove(struct ieee80211_local *local, struct ieee80211_sta *sta) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); sdata = get_bss_sdata(sdata); if (!check_sdata_in_driver(sdata)) @@ -473,6 +495,7 @@ static inline void drv_link_add_debugfs(struct ieee80211_local *local, struct dentry *dir) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); sdata = get_bss_sdata(sdata); if (!check_sdata_in_driver(sdata)) @@ -489,6 +512,7 @@ static inline void drv_sta_add_debugfs(struct ieee80211_local *local, struct dentry *dir) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); sdata = get_bss_sdata(sdata); if (!check_sdata_in_driver(sdata)) @@ -505,6 +529,7 @@ static inline void drv_link_sta_add_debugfs(struct ieee80211_local *local, struct dentry *dir) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); sdata = get_bss_sdata(sdata); if (!check_sdata_in_driver(sdata)) @@ -521,6 +546,7 @@ static inline void drv_sta_pre_rcu_remove(struct ieee80211_local *local, struct sta_info *sta) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); sdata = get_bss_sdata(sdata); if (!check_sdata_in_driver(sdata)) @@ -569,6 +595,9 @@ static inline void drv_sta_statistics(struct ieee80211_local *local, struct ieee80211_sta *sta, struct station_info *sinfo) { + might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); + sdata = get_bss_sdata(sdata); if (!check_sdata_in_driver(sdata)) return; @@ -599,6 +628,7 @@ static inline int drv_tx_last_beacon(struct ieee80211_local *local) int ret = 0; /* default unsupported op for less congestion */ might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); trace_drv_tx_last_beacon(local); if (local->ops->tx_last_beacon) @@ -616,6 +646,9 @@ static inline int drv_get_survey(struct ieee80211_local *local, int idx, { int ret = -EOPNOTSUPP; + might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); + trace_drv_get_survey(local, idx, survey); if (local->ops->get_survey) @@ -629,6 +662,7 @@ static inline int drv_get_survey(struct ieee80211_local *local, int idx, static inline void drv_rfkill_poll(struct ieee80211_local *local) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (local->ops->rfkill_poll) local->ops->rfkill_poll(&local->hw); @@ -641,6 +675,7 @@ static inline void drv_flush(struct ieee80211_local *local, struct ieee80211_vif *vif = sdata ? &sdata->vif : NULL; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (sdata && !check_sdata_in_driver(sdata)) return; @@ -656,6 +691,7 @@ static inline void drv_flush_sta(struct ieee80211_local *local, struct sta_info *sta) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (sdata && !check_sdata_in_driver(sdata)) return; @@ -671,6 +707,7 @@ static inline void drv_channel_switch(struct ieee80211_local *local, struct ieee80211_channel_switch *ch_switch) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); trace_drv_channel_switch(local, sdata, ch_switch); local->ops->channel_switch(&local->hw, &sdata->vif, ch_switch); @@ -683,6 +720,7 @@ static inline int drv_set_antenna(struct ieee80211_local *local, { int ret = -EOPNOTSUPP; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (local->ops->set_antenna) ret = local->ops->set_antenna(&local->hw, tx_ant, rx_ant); trace_drv_set_antenna(local, tx_ant, rx_ant, ret); @@ -694,6 +732,7 @@ static inline int drv_get_antenna(struct ieee80211_local *local, { int ret = -EOPNOTSUPP; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (local->ops->get_antenna) ret = local->ops->get_antenna(&local->hw, tx_ant, rx_ant); trace_drv_get_antenna(local, *tx_ant, *rx_ant, ret); @@ -709,6 +748,7 @@ static inline int drv_remain_on_channel(struct ieee80211_local *local, int ret; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); trace_drv_remain_on_channel(local, sdata, chan, duration, type); ret = local->ops->remain_on_channel(&local->hw, &sdata->vif, @@ -725,6 +765,7 @@ drv_cancel_remain_on_channel(struct ieee80211_local *local, int ret; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); trace_drv_cancel_remain_on_channel(local, sdata); ret = local->ops->cancel_remain_on_channel(&local->hw, &sdata->vif); @@ -739,6 +780,7 @@ static inline int drv_set_ringparam(struct ieee80211_local *local, int ret = -ENOTSUPP; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); trace_drv_set_ringparam(local, tx, rx); if (local->ops->set_ringparam) @@ -752,6 +794,7 @@ static inline void drv_get_ringparam(struct ieee80211_local *local, u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); trace_drv_get_ringparam(local, tx, tx_max, rx, rx_max); if (local->ops->get_ringparam) @@ -764,6 +807,7 @@ static inline bool drv_tx_frames_pending(struct ieee80211_local *local) bool ret = false; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); trace_drv_tx_frames_pending(local); if (local->ops->tx_frames_pending) @@ -780,6 +824,7 @@ static inline int drv_set_bitrate_mask(struct ieee80211_local *local, int ret = -EOPNOTSUPP; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return -EIO; @@ -797,6 +842,9 @@ static inline void drv_set_rekey_data(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata, struct cfg80211_gtk_rekey_data *data) { + might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); + if (!check_sdata_in_driver(sdata)) return; @@ -851,6 +899,7 @@ static inline void drv_mgd_prepare_tx(struct ieee80211_local *local, struct ieee80211_prep_tx_info *info) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return; @@ -868,6 +917,7 @@ static inline void drv_mgd_complete_tx(struct ieee80211_local *local, struct ieee80211_prep_tx_info *info) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return; @@ -885,6 +935,7 @@ drv_mgd_protect_tdls_discover(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return; @@ -902,6 +953,7 @@ static inline int drv_add_chanctx(struct ieee80211_local *local, int ret = -EOPNOTSUPP; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); trace_drv_add_chanctx(local, ctx); if (local->ops->add_chanctx) @@ -917,6 +969,7 @@ static inline void drv_remove_chanctx(struct ieee80211_local *local, struct ieee80211_chanctx *ctx) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (WARN_ON(!ctx->driver_present)) return; @@ -933,6 +986,7 @@ static inline void drv_change_chanctx(struct ieee80211_local *local, u32 changed) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); trace_drv_change_chanctx(local, ctx, changed); if (local->ops->change_chanctx) { @@ -942,14 +996,6 @@ static inline void drv_change_chanctx(struct ieee80211_local *local, trace_drv_return_void(local); } -static inline void drv_verify_link_exists(struct ieee80211_sub_if_data *sdata, - struct ieee80211_bss_conf *link_conf) -{ - /* deflink always exists, so need to check only for other links */ - if (sdata->deflink.conf != link_conf) - sdata_assert_lock(sdata); -} - int drv_assign_vif_chanctx(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata, struct ieee80211_bss_conf *link_conf, @@ -968,10 +1014,8 @@ static inline int drv_start_ap(struct ieee80211_local *local, { int ret = 0; - /* make sure link_conf is protected */ - drv_verify_link_exists(sdata, link_conf); - might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return -EIO; @@ -987,8 +1031,8 @@ static inline void drv_stop_ap(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata, struct ieee80211_bss_conf *link_conf) { - /* make sure link_conf is protected */ - drv_verify_link_exists(sdata, link_conf); + might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return; @@ -1004,6 +1048,7 @@ drv_reconfig_complete(struct ieee80211_local *local, enum ieee80211_reconfig_type reconfig_type) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); trace_drv_reconfig_complete(local, reconfig_type); if (local->ops->reconfig_complete) @@ -1016,6 +1061,9 @@ drv_set_default_unicast_key(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata, int key_idx) { + might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); + if (!check_sdata_in_driver(sdata)) return; @@ -1046,6 +1094,9 @@ drv_channel_switch_beacon(struct ieee80211_sub_if_data *sdata, { struct ieee80211_local *local = sdata->local; + might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); + if (local->ops->channel_switch_beacon) { trace_drv_channel_switch_beacon(local, sdata, chandef); local->ops->channel_switch_beacon(&local->hw, &sdata->vif, @@ -1060,6 +1111,9 @@ drv_pre_channel_switch(struct ieee80211_sub_if_data *sdata, struct ieee80211_local *local = sdata->local; int ret = 0; + might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); + if (!check_sdata_in_driver(sdata)) return -EIO; @@ -1072,17 +1126,22 @@ drv_pre_channel_switch(struct ieee80211_sub_if_data *sdata, } static inline int -drv_post_channel_switch(struct ieee80211_sub_if_data *sdata) +drv_post_channel_switch(struct ieee80211_link_data *link) { + struct ieee80211_sub_if_data *sdata = link->sdata; struct ieee80211_local *local = sdata->local; int ret = 0; + might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); + if (!check_sdata_in_driver(sdata)) return -EIO; trace_drv_post_channel_switch(local, sdata); if (local->ops->post_channel_switch) - ret = local->ops->post_channel_switch(&local->hw, &sdata->vif); + ret = local->ops->post_channel_switch(&local->hw, &sdata->vif, + link->conf); trace_drv_return_int(local, ret); return ret; } @@ -1092,6 +1151,9 @@ drv_abort_channel_switch(struct ieee80211_sub_if_data *sdata) { struct ieee80211_local *local = sdata->local; + might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); + if (!check_sdata_in_driver(sdata)) return; @@ -1107,6 +1169,9 @@ drv_channel_switch_rx_beacon(struct ieee80211_sub_if_data *sdata, { struct ieee80211_local *local = sdata->local; + might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); + if (!check_sdata_in_driver(sdata)) return; @@ -1122,6 +1187,7 @@ static inline int drv_join_ibss(struct ieee80211_local *local, int ret = 0; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return -EIO; @@ -1136,6 +1202,7 @@ static inline void drv_leave_ibss(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return; @@ -1163,6 +1230,9 @@ static inline int drv_get_txpower(struct ieee80211_local *local, { int ret; + might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); + if (!local->ops->get_txpower) return -EOPNOTSUPP; @@ -1182,6 +1252,7 @@ drv_tdls_channel_switch(struct ieee80211_local *local, int ret; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return -EIO; @@ -1202,6 +1273,7 @@ drv_tdls_cancel_channel_switch(struct ieee80211_local *local, struct ieee80211_sta *sta) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return; @@ -1267,6 +1339,11 @@ drv_get_ftm_responder_stats(struct ieee80211_local *local, { u32 ret = -EOPNOTSUPP; + might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); + if (!check_sdata_in_driver(sdata)) + return -EIO; + if (local->ops->get_ftm_responder_stats) ret = local->ops->get_ftm_responder_stats(&local->hw, &sdata->vif, @@ -1283,6 +1360,7 @@ static inline int drv_start_pmsr(struct ieee80211_local *local, int ret = -EOPNOTSUPP; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return -EIO; @@ -1302,6 +1380,7 @@ static inline void drv_abort_pmsr(struct ieee80211_local *local, trace_drv_abort_pmsr(local, sdata); might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return; @@ -1317,6 +1396,7 @@ static inline int drv_start_nan(struct ieee80211_local *local, int ret; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); check_sdata_in_driver(sdata); trace_drv_start_nan(local, sdata, conf); @@ -1329,6 +1409,7 @@ static inline void drv_stop_nan(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); check_sdata_in_driver(sdata); trace_drv_stop_nan(local, sdata); @@ -1344,6 +1425,7 @@ static inline int drv_nan_change_conf(struct ieee80211_local *local, int ret; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); check_sdata_in_driver(sdata); if (!local->ops->nan_change_conf) @@ -1364,6 +1446,7 @@ static inline int drv_add_nan_func(struct ieee80211_local *local, int ret; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); check_sdata_in_driver(sdata); if (!local->ops->add_nan_func) @@ -1381,6 +1464,7 @@ static inline void drv_del_nan_func(struct ieee80211_local *local, u8 instance_id) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); check_sdata_in_driver(sdata); trace_drv_del_nan_func(local, sdata, instance_id); @@ -1397,6 +1481,7 @@ static inline int drv_set_tid_config(struct ieee80211_local *local, int ret; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); ret = local->ops->set_tid_config(&local->hw, &sdata->vif, sta, tid_conf); trace_drv_return_int(local, ret); @@ -1411,6 +1496,7 @@ static inline int drv_reset_tid_config(struct ieee80211_local *local, int ret; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); ret = local->ops->reset_tid_config(&local->hw, &sdata->vif, sta, tids); trace_drv_return_int(local, ret); @@ -1421,6 +1507,7 @@ static inline void drv_update_vif_offload(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); check_sdata_in_driver(sdata); if (!local->ops->update_vif_offload) @@ -1436,6 +1523,9 @@ static inline void drv_sta_set_4addr(struct ieee80211_local *local, struct ieee80211_sta *sta, bool enabled) { sdata = get_bss_sdata(sdata); + + might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return; @@ -1451,6 +1541,9 @@ static inline void drv_sta_set_decap_offload(struct ieee80211_local *local, bool enabled) { sdata = get_bss_sdata(sdata); + + might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return; @@ -1469,6 +1562,7 @@ static inline void drv_add_twt_setup(struct ieee80211_local *local, struct ieee80211_twt_params *twt_agrt; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return; @@ -1486,6 +1580,7 @@ static inline void drv_twt_teardown_request(struct ieee80211_local *local, u8 flowid) { might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); if (!check_sdata_in_driver(sdata)) return; @@ -1526,6 +1621,8 @@ static inline int drv_net_setup_tc(struct ieee80211_local *local, { int ret = -EOPNOTSUPP; + might_sleep(); + sdata = get_bss_sdata(sdata); trace_drv_net_setup_tc(local, sdata, type); if (local->ops->net_setup_tc) diff --git a/net/mac80211/drop.h b/net/mac80211/drop.h index 49dc809cab29..12a6f0e9eca6 100644 --- a/net/mac80211/drop.h +++ b/net/mac80211/drop.h @@ -18,9 +18,54 @@ typedef unsigned int __bitwise ieee80211_rx_result; /* this line for the trailing \ - add before this */ #define MAC80211_DROP_REASONS_UNUSABLE(R) \ + /* 0x00 == ___RX_DROP_UNUSABLE */ \ R(RX_DROP_U_MIC_FAIL) \ R(RX_DROP_U_REPLAY) \ R(RX_DROP_U_BAD_MMIE) \ + R(RX_DROP_U_DUP) \ + R(RX_DROP_U_SPURIOUS) \ + R(RX_DROP_U_DECRYPT_FAIL) \ + R(RX_DROP_U_NO_KEY_ID) \ + R(RX_DROP_U_BAD_CIPHER) \ + R(RX_DROP_U_OOM) \ + R(RX_DROP_U_NONSEQ_PN) \ + R(RX_DROP_U_BAD_KEY_COLOR) \ + R(RX_DROP_U_BAD_4ADDR) \ + R(RX_DROP_U_BAD_AMSDU) \ + R(RX_DROP_U_BAD_AMSDU_CIPHER) \ + R(RX_DROP_U_INVALID_8023) \ + /* 0x10 */ \ + R(RX_DROP_U_RUNT_ACTION) \ + R(RX_DROP_U_UNPROT_ACTION) \ + R(RX_DROP_U_UNPROT_DUAL) \ + R(RX_DROP_U_UNPROT_UCAST_MGMT) \ + R(RX_DROP_U_UNPROT_MCAST_MGMT) \ + R(RX_DROP_U_UNPROT_BEACON) \ + R(RX_DROP_U_UNPROT_UNICAST_PUB_ACTION) \ + R(RX_DROP_U_UNPROT_ROBUST_ACTION) \ + R(RX_DROP_U_ACTION_UNKNOWN_SRC) \ + R(RX_DROP_U_REJECTED_ACTION_RESPONSE) \ + R(RX_DROP_U_EXPECT_DEFRAG_PROT) \ + R(RX_DROP_U_WEP_DEC_FAIL) \ + R(RX_DROP_U_NO_IV) \ + R(RX_DROP_U_NO_ICV) \ + R(RX_DROP_U_AP_RX_GROUPCAST) \ + R(RX_DROP_U_SHORT_MMIC) \ + /* 0x20 */ \ + R(RX_DROP_U_MMIC_FAIL) \ + R(RX_DROP_U_SHORT_TKIP) \ + R(RX_DROP_U_TKIP_FAIL) \ + R(RX_DROP_U_SHORT_CCMP) \ + R(RX_DROP_U_SHORT_CCMP_MIC) \ + R(RX_DROP_U_SHORT_GCMP) \ + R(RX_DROP_U_SHORT_GCMP_MIC) \ + R(RX_DROP_U_SHORT_CMAC) \ + R(RX_DROP_U_SHORT_CMAC256) \ + R(RX_DROP_U_SHORT_GMAC) \ + R(RX_DROP_U_UNEXPECTED_VLAN_4ADDR) \ + R(RX_DROP_U_UNEXPECTED_STA_4ADDR) \ + R(RX_DROP_U_UNEXPECTED_VLAN_MCAST) \ + R(RX_DROP_U_NOT_PORT_CONTROL) \ /* this line for the trailing \ - add before this */ /* having two enums allows for checking ieee80211_rx_result use with sparse */ @@ -46,11 +91,13 @@ enum mac80211_drop_reason { RX_CONTINUE = (__force ieee80211_rx_result)___RX_CONTINUE, RX_QUEUED = (__force ieee80211_rx_result)___RX_QUEUED, RX_DROP_MONITOR = (__force ieee80211_rx_result)___RX_DROP_MONITOR, - RX_DROP_UNUSABLE = (__force ieee80211_rx_result)___RX_DROP_UNUSABLE, #define DEF(x) x = (__force ieee80211_rx_result)___ ## x, MAC80211_DROP_REASONS_MONITOR(DEF) MAC80211_DROP_REASONS_UNUSABLE(DEF) #undef DEF }; +#define RX_RES_IS_UNUSABLE(result) \ + (((__force u32)(result) & SKB_DROP_REASON_SUBSYS_MASK) == ___RX_DROP_UNUSABLE) + #endif /* MAC80211_DROP_H */ diff --git a/net/mac80211/ethtool.c b/net/mac80211/ethtool.c index a3830d925cc2..99f6174a9d69 100644 --- a/net/mac80211/ethtool.c +++ b/net/mac80211/ethtool.c @@ -5,7 +5,7 @@ * Copied from cfg.c - originally * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> * Copyright 2014 Intel Corporation (Author: Johannes Berg) - * Copyright (C) 2018, 2022 Intel Corporation + * Copyright (C) 2018, 2022-2023 Intel Corporation */ #include <linux/types.h> #include <net/cfg80211.h> @@ -19,11 +19,16 @@ static int ieee80211_set_ringparam(struct net_device *dev, struct netlink_ext_ack *extack) { struct ieee80211_local *local = wiphy_priv(dev->ieee80211_ptr->wiphy); + int ret; if (rp->rx_mini_pending != 0 || rp->rx_jumbo_pending != 0) return -EINVAL; - return drv_set_ringparam(local, rp->tx_pending, rp->rx_pending); + wiphy_lock(local->hw.wiphy); + ret = drv_set_ringparam(local, rp->tx_pending, rp->rx_pending); + wiphy_unlock(local->hw.wiphy); + + return ret; } static void ieee80211_get_ringparam(struct net_device *dev, @@ -35,8 +40,10 @@ static void ieee80211_get_ringparam(struct net_device *dev, memset(rp, 0, sizeof(*rp)); + wiphy_lock(local->hw.wiphy); drv_get_ringparam(local, &rp->tx_pending, &rp->tx_max_pending, &rp->rx_pending, &rp->rx_max_pending); + wiphy_unlock(local->hw.wiphy); } static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = { @@ -102,7 +109,7 @@ static void ieee80211_get_stats(struct net_device *dev, * network device. */ - mutex_lock(&local->sta_mtx); + wiphy_lock(local->hw.wiphy); if (sdata->vif.type == NL80211_IFTYPE_STATION) { sta = sta_info_get_bss(sdata, sdata->deflink.u.mgd.bssid); @@ -198,12 +205,13 @@ do_survey: else data[i++] = -1LL; - mutex_unlock(&local->sta_mtx); - - if (WARN_ON(i != STA_STATS_LEN)) + if (WARN_ON(i != STA_STATS_LEN)) { + wiphy_unlock(local->hw.wiphy); return; + } drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN])); + wiphy_unlock(local->hw.wiphy); } static void ieee80211_get_strings(struct net_device *dev, u32 sset, u8 *data) diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c index 33729870ad8a..68cea2685224 100644 --- a/net/mac80211/ht.c +++ b/net/mac80211/ht.c @@ -316,16 +316,16 @@ void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, { int i; - mutex_lock(&sta->ampdu_mlme.mtx); + lockdep_assert_wiphy(sta->local->hw.wiphy); + for (i = 0; i < IEEE80211_NUM_TIDS; i++) - ___ieee80211_stop_rx_ba_session(sta, i, WLAN_BACK_RECIPIENT, - WLAN_REASON_QSTA_LEAVE_QBSS, - reason != AGG_STOP_DESTROY_STA && - reason != AGG_STOP_PEER_REQUEST); + __ieee80211_stop_rx_ba_session(sta, i, WLAN_BACK_RECIPIENT, + WLAN_REASON_QSTA_LEAVE_QBSS, + reason != AGG_STOP_DESTROY_STA && + reason != AGG_STOP_PEER_REQUEST); for (i = 0; i < IEEE80211_NUM_TIDS; i++) - ___ieee80211_stop_tx_ba_session(sta, i, reason); - mutex_unlock(&sta->ampdu_mlme.mtx); + __ieee80211_stop_tx_ba_session(sta, i, reason); /* * In case the tear down is part of a reconfigure due to HW restart @@ -333,9 +333,8 @@ void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, * the BA session, so handle it to properly clean tid_tx data. */ if(reason == AGG_STOP_DESTROY_STA) { - cancel_work_sync(&sta->ampdu_mlme.work); + wiphy_work_cancel(sta->local->hw.wiphy, &sta->ampdu_mlme.work); - mutex_lock(&sta->ampdu_mlme.mtx); for (i = 0; i < IEEE80211_NUM_TIDS; i++) { struct tid_ampdu_tx *tid_tx = rcu_dereference_protected_tid_tx(sta, i); @@ -346,11 +345,10 @@ void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, if (test_and_clear_bit(HT_AGG_STATE_STOP_CB, &tid_tx->state)) ieee80211_stop_tx_ba_cb(sta, i, tid_tx); } - mutex_unlock(&sta->ampdu_mlme.mtx); } } -void ieee80211_ba_session_work(struct work_struct *work) +void ieee80211_ba_session_work(struct wiphy *wiphy, struct wiphy_work *work) { struct sta_info *sta = container_of(work, struct sta_info, ampdu_mlme.work); @@ -358,32 +356,33 @@ void ieee80211_ba_session_work(struct work_struct *work) bool blocked; int tid; + lockdep_assert_wiphy(sta->local->hw.wiphy); + /* When this flag is set, new sessions should be blocked. */ blocked = test_sta_flag(sta, WLAN_STA_BLOCK_BA); - mutex_lock(&sta->ampdu_mlme.mtx); for (tid = 0; tid < IEEE80211_NUM_TIDS; tid++) { if (test_and_clear_bit(tid, sta->ampdu_mlme.tid_rx_timer_expired)) - ___ieee80211_stop_rx_ba_session( + __ieee80211_stop_rx_ba_session( sta, tid, WLAN_BACK_RECIPIENT, WLAN_REASON_QSTA_TIMEOUT, true); if (test_and_clear_bit(tid, sta->ampdu_mlme.tid_rx_stop_requested)) - ___ieee80211_stop_rx_ba_session( + __ieee80211_stop_rx_ba_session( sta, tid, WLAN_BACK_RECIPIENT, WLAN_REASON_UNSPECIFIED, true); if (!blocked && test_and_clear_bit(tid, sta->ampdu_mlme.tid_rx_manage_offl)) - ___ieee80211_start_rx_ba_session(sta, 0, 0, 0, 1, tid, - IEEE80211_MAX_AMPDU_BUF_HT, - false, true, NULL); + __ieee80211_start_rx_ba_session(sta, 0, 0, 0, 1, tid, + IEEE80211_MAX_AMPDU_BUF_HT, + false, true, NULL); if (test_and_clear_bit(tid + IEEE80211_NUM_TIDS, sta->ampdu_mlme.tid_rx_manage_offl)) - ___ieee80211_stop_rx_ba_session( + __ieee80211_stop_rx_ba_session( sta, tid, WLAN_BACK_RECIPIENT, 0, false); @@ -414,9 +413,7 @@ void ieee80211_ba_session_work(struct work_struct *work) */ synchronize_net(); - mutex_unlock(&sta->ampdu_mlme.mtx); - - ieee80211_queue_work(&sdata->local->hw, work); + wiphy_work_queue(sdata->local->hw.wiphy, work); return; } @@ -448,12 +445,11 @@ void ieee80211_ba_session_work(struct work_struct *work) test_and_clear_bit(HT_AGG_STATE_START_CB, &tid_tx->state)) ieee80211_start_tx_ba_cb(sta, tid, tid_tx); if (test_and_clear_bit(HT_AGG_STATE_WANT_STOP, &tid_tx->state)) - ___ieee80211_stop_tx_ba_session(sta, tid, - AGG_STOP_LOCAL_REQUEST); + __ieee80211_stop_tx_ba_session(sta, tid, + AGG_STOP_LOCAL_REQUEST); if (test_and_clear_bit(HT_AGG_STATE_STOP_CB, &tid_tx->state)) ieee80211_stop_tx_ba_cb(sta, tid, tid_tx); } - mutex_unlock(&sta->ampdu_mlme.mtx); } void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata, @@ -538,11 +534,13 @@ ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps) int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata, enum ieee80211_smps_mode smps, const u8 *da, - const u8 *bssid) + const u8 *bssid, int link_id) { struct ieee80211_local *local = sdata->local; struct sk_buff *skb; struct ieee80211_mgmt *action_frame; + struct ieee80211_tx_info *info; + u8 status_link_id = link_id < 0 ? 0 : link_id; /* 27 = header + category + action + smps mode */ skb = dev_alloc_skb(27 + local->hw.extra_tx_headroom); @@ -562,6 +560,7 @@ int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata, case IEEE80211_SMPS_AUTOMATIC: case IEEE80211_SMPS_NUM_MODES: WARN_ON(1); + smps = IEEE80211_SMPS_OFF; fallthrough; case IEEE80211_SMPS_OFF: action_frame->u.action.u.ht_smps.smps_control = @@ -578,8 +577,13 @@ int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata, } /* we'll do more on status of this frame */ - IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; - ieee80211_tx_skb(sdata, skb); + info = IEEE80211_SKB_CB(skb); + info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; + /* we have 12 bits, and need 6: link_id 4, smps 2 */ + info->status_data = IEEE80211_STATUS_TYPE_SMPS | + u16_encode_bits(status_link_id << 2 | smps, + IEEE80211_STATUS_SUBDATA_MASK); + ieee80211_tx_skb_tid(sdata, skb, 7, link_id); return 0; } diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index 5542c93edfba..8b1e02f2f9ae 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -51,7 +51,6 @@ ieee80211_ibss_build_presp(struct ieee80211_sub_if_data *sdata, u32 rate_flags, rates = 0, rates_added = 0; struct beacon_data *presp; int frame_len; - int shift; /* Build IBSS probe response */ frame_len = sizeof(struct ieee80211_hdr_3addr) + @@ -92,7 +91,6 @@ ieee80211_ibss_build_presp(struct ieee80211_sub_if_data *sdata, sband = local->hw.wiphy->bands[chandef->chan->band]; rate_flags = ieee80211_chandef_rate_flags(chandef); - shift = ieee80211_chandef_get_shift(chandef); rates_n = 0; if (have_higher_than_11mbit) *have_higher_than_11mbit = false; @@ -111,8 +109,7 @@ ieee80211_ibss_build_presp(struct ieee80211_sub_if_data *sdata, *pos++ = WLAN_EID_SUPP_RATES; *pos++ = min_t(int, 8, rates_n); for (ri = 0; ri < sband->n_bitrates; ri++) { - int rate = DIV_ROUND_UP(sband->bitrates[ri].bitrate, - 5 * (1 << shift)); + int rate = DIV_ROUND_UP(sband->bitrates[ri].bitrate, 5); u8 basic = 0; if (!(rates & BIT(ri))) continue; @@ -155,8 +152,7 @@ ieee80211_ibss_build_presp(struct ieee80211_sub_if_data *sdata, *pos++ = WLAN_EID_EXT_SUPP_RATES; *pos++ = rates_n - 8; for (; ri < sband->n_bitrates; ri++) { - int rate = DIV_ROUND_UP(sband->bitrates[ri].bitrate, - 5 * (1 << shift)); + int rate = DIV_ROUND_UP(sband->bitrates[ri].bitrate, 5); u8 basic = 0; if (!(rates & BIT(ri))) continue; @@ -235,7 +231,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, bool radar_required; int err; - sdata_assert_lock(sdata); + lockdep_assert_wiphy(local->hw.wiphy); /* Reset own TSF to allow time synchronization work. */ drv_reset_tsf(local, sdata); @@ -299,17 +295,14 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, radar_required = err; - mutex_lock(&local->mtx); if (ieee80211_link_use_channel(&sdata->deflink, &chandef, ifibss->fixed_channel ? IEEE80211_CHANCTX_SHARED : IEEE80211_CHANCTX_EXCLUSIVE)) { sdata_info(sdata, "Failed to join IBSS, no channel context\n"); - mutex_unlock(&local->mtx); return; } sdata->deflink.radar_required = radar_required; - mutex_unlock(&local->mtx); memcpy(ifibss->bssid, bssid, ETH_ALEN); @@ -367,9 +360,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, sdata->vif.cfg.ssid_len = 0; RCU_INIT_POINTER(ifibss->presp, NULL); kfree_rcu(presp, rcu_head); - mutex_lock(&local->mtx); ieee80211_link_release_channel(&sdata->deflink); - mutex_unlock(&local->mtx); sdata_info(sdata, "Failed to join IBSS, driver failure: %d\n", err); return; @@ -382,7 +373,6 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, round_jiffies(jiffies + IEEE80211_IBSS_MERGE_INTERVAL)); bss_meta.chan = chan; - bss_meta.scan_width = cfg80211_chandef_to_scan_width(&chandef); bss = cfg80211_inform_bss_frame_data(local->hw.wiphy, &bss_meta, mgmt, presp->head_len, GFP_KERNEL); @@ -405,9 +395,8 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, enum nl80211_channel_type chan_type; u64 tsf; u32 rate_flags; - int shift; - sdata_assert_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); if (beacon_int < 10) beacon_int = 10; @@ -440,7 +429,6 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, sband = sdata->local->hw.wiphy->bands[cbss->channel->band]; rate_flags = ieee80211_chandef_rate_flags(&sdata->u.ibss.chandef); - shift = ieee80211_vif_get_shift(&sdata->vif); basic_rates = 0; @@ -454,8 +442,7 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, != rate_flags) continue; - brate = DIV_ROUND_UP(sband->bitrates[j].bitrate, - 5 * (1 << shift)); + brate = DIV_ROUND_UP(sband->bitrates[j].bitrate, 5); if (brate == rate) { if (is_basic) basic_rates |= BIT(j); @@ -488,7 +475,7 @@ int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata, u16 capability = WLAN_CAPABILITY_IBSS; u64 tsf; - sdata_assert_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); if (ifibss->privacy) capability |= WLAN_CAPABILITY_PRIVACY; @@ -530,7 +517,7 @@ int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata, u64 *changed) struct ieee80211_if_ibss *ifibss = &sdata->u.ibss; struct cfg80211_bss *cbss; - sdata_assert_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); /* When not connected/joined, sending CSA doesn't make sense. */ if (ifibss->state != IEEE80211_IBSS_MLME_JOINED) @@ -600,7 +587,6 @@ ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, const u8 *bssid, struct sta_info *sta; struct ieee80211_chanctx_conf *chanctx_conf; struct ieee80211_supported_band *sband; - enum nl80211_bss_scan_width scan_width; int band; /* @@ -629,7 +615,6 @@ ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, const u8 *bssid, if (WARN_ON_ONCE(!chanctx_conf)) return NULL; band = chanctx_conf->def.chan->band; - scan_width = cfg80211_chandef_to_scan_width(&chanctx_conf->def); rcu_read_unlock(); sta = sta_info_alloc(sdata, addr, GFP_KERNEL); @@ -641,7 +626,7 @@ ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, const u8 *bssid, /* make sure mandatory rates are always added */ sband = local->hw.wiphy->bands[band]; sta->sta.deflink.supp_rates[band] = supp_rates | - ieee80211_mandatory_rates(sband, scan_width); + ieee80211_mandatory_rates(sband); return ieee80211_ibss_finish_sta(sta); } @@ -652,7 +637,7 @@ static int ieee80211_sta_active_ibss(struct ieee80211_sub_if_data *sdata) int active = 0; struct sta_info *sta; - sdata_assert_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); rcu_read_lock(); @@ -680,6 +665,8 @@ static void ieee80211_ibss_disconnect(struct ieee80211_sub_if_data *sdata) struct beacon_data *presp; struct sta_info *sta; + lockdep_assert_wiphy(local->hw.wiphy); + if (!is_zero_ether_addr(ifibss->bssid)) { cbss = cfg80211_get_bss(local->hw.wiphy, ifibss->chandef.chan, ifibss->bssid, ifibss->ssid, @@ -726,9 +713,7 @@ static void ieee80211_ibss_disconnect(struct ieee80211_sub_if_data *sdata) ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED | BSS_CHANGED_IBSS); drv_leave_ibss(local, sdata); - mutex_lock(&local->mtx); ieee80211_link_release_channel(&sdata->deflink); - mutex_unlock(&local->mtx); } static void ieee80211_csa_connection_drop_work(struct wiphy *wiphy, @@ -738,16 +723,12 @@ static void ieee80211_csa_connection_drop_work(struct wiphy *wiphy, container_of(work, struct ieee80211_sub_if_data, u.ibss.csa_connection_drop_work); - sdata_lock(sdata); - ieee80211_ibss_disconnect(sdata); synchronize_rcu(); skb_queue_purge(&sdata->skb_queue); /* trigger a scan to find another IBSS network to join */ wiphy_work_queue(sdata->local->hw.wiphy, &sdata->work); - - sdata_unlock(sdata); } static void ieee80211_ibss_csa_mark_radar(struct ieee80211_sub_if_data *sdata) @@ -779,7 +760,7 @@ ieee80211_ibss_process_chanswitch(struct ieee80211_sub_if_data *sdata, ieee80211_conn_flags_t conn_flags; u32 vht_cap_info = 0; - sdata_assert_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); conn_flags = IEEE80211_CONN_DISABLE_VHT; @@ -951,7 +932,7 @@ static void ieee80211_rx_mgmt_auth_ibss(struct ieee80211_sub_if_data *sdata, { u16 auth_alg, auth_transaction; - sdata_assert_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); if (len < 24 + 6) return; @@ -984,7 +965,6 @@ static void ieee80211_update_sta_info(struct ieee80211_sub_if_data *sdata, { struct sta_info *sta; enum nl80211_band band = rx_status->band; - enum nl80211_bss_scan_width scan_width; struct ieee80211_local *local = sdata->local; struct ieee80211_supported_band *sband; bool rates_updated = false; @@ -1010,15 +990,9 @@ static void ieee80211_update_sta_info(struct ieee80211_sub_if_data *sdata, u32 prev_rates; prev_rates = sta->sta.deflink.supp_rates[band]; - /* make sure mandatory rates are always added */ - scan_width = NL80211_BSS_CHAN_WIDTH_20; - if (rx_status->bw == RATE_INFO_BW_5) - scan_width = NL80211_BSS_CHAN_WIDTH_5; - else if (rx_status->bw == RATE_INFO_BW_10) - scan_width = NL80211_BSS_CHAN_WIDTH_10; sta->sta.deflink.supp_rates[band] = supp_rates | - ieee80211_mandatory_rates(sband, scan_width); + ieee80211_mandatory_rates(sband); if (sta->sta.deflink.supp_rates[band] != prev_rates) { ibss_dbg(sdata, "updated supp_rates set for %pM based on beacon/probe_resp (0x%x -> 0x%x)\n", @@ -1205,7 +1179,6 @@ void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata, struct sta_info *sta; struct ieee80211_chanctx_conf *chanctx_conf; struct ieee80211_supported_band *sband; - enum nl80211_bss_scan_width scan_width; int band; /* @@ -1231,7 +1204,6 @@ void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata, return; } band = chanctx_conf->def.chan->band; - scan_width = cfg80211_chandef_to_scan_width(&chanctx_conf->def); rcu_read_unlock(); sta = sta_info_alloc(sdata, addr, GFP_ATOMIC); @@ -1241,7 +1213,7 @@ void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata, /* make sure mandatory rates are always added */ sband = local->hw.wiphy->bands[band]; sta->sta.deflink.supp_rates[band] = supp_rates | - ieee80211_mandatory_rates(sband, scan_width); + ieee80211_mandatory_rates(sband); spin_lock(&ifibss->incomplete_lock); list_add(&sta->list, &ifibss->incomplete_stations); @@ -1257,7 +1229,7 @@ static void ieee80211_ibss_sta_expire(struct ieee80211_sub_if_data *sdata) unsigned long exp_time = IEEE80211_IBSS_INACTIVITY_LIMIT; unsigned long exp_rsn = IEEE80211_IBSS_RSN_INACTIVITY_LIMIT; - mutex_lock(&local->sta_mtx); + lockdep_assert_wiphy(local->hw.wiphy); list_for_each_entry_safe(sta, tmp, &local->sta_list, list) { unsigned long last_active = ieee80211_sta_last_active(sta); @@ -1282,8 +1254,6 @@ static void ieee80211_ibss_sta_expire(struct ieee80211_sub_if_data *sdata) WARN_ON(__sta_info_destroy(sta)); } } - - mutex_unlock(&local->sta_mtx); } /* @@ -1293,9 +1263,8 @@ static void ieee80211_ibss_sta_expire(struct ieee80211_sub_if_data *sdata) static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata) { struct ieee80211_if_ibss *ifibss = &sdata->u.ibss; - enum nl80211_bss_scan_width scan_width; - sdata_assert_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); mod_timer(&ifibss->timer, round_jiffies(jiffies + IEEE80211_IBSS_MERGE_INTERVAL)); @@ -1315,9 +1284,8 @@ static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata) sdata_info(sdata, "No active IBSS STAs - trying to scan for other IBSS networks with same SSID (merge)\n"); - scan_width = cfg80211_chandef_to_scan_width(&ifibss->chandef); ieee80211_request_ibss_scan(sdata, ifibss->ssid, ifibss->ssid_len, - NULL, 0, scan_width); + NULL, 0); } static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata) @@ -1327,7 +1295,7 @@ static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata) u16 capability; int i; - sdata_assert_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); if (ifibss->fixed_bssid) { memcpy(bssid, ifibss->bssid, ETH_ALEN); @@ -1435,10 +1403,9 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata) struct cfg80211_bss *cbss; struct ieee80211_channel *chan = NULL; const u8 *bssid = NULL; - enum nl80211_bss_scan_width scan_width; int active_ibss; - sdata_assert_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); active_ibss = ieee80211_sta_active_ibss(sdata); ibss_dbg(sdata, "sta_find_ibss (active_ibss=%d)\n", active_ibss); @@ -1494,8 +1461,6 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata) sdata_info(sdata, "Trigger new scan to find an IBSS to join\n"); - scan_width = cfg80211_chandef_to_scan_width(&ifibss->chandef); - if (ifibss->fixed_channel) { num = ieee80211_ibss_setup_scan_channels(local->hw.wiphy, &ifibss->chandef, @@ -1503,11 +1468,10 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata) ARRAY_SIZE(channels)); ieee80211_request_ibss_scan(sdata, ifibss->ssid, ifibss->ssid_len, channels, - num, scan_width); + num); } else { ieee80211_request_ibss_scan(sdata, ifibss->ssid, - ifibss->ssid_len, NULL, - 0, scan_width); + ifibss->ssid_len, NULL, 0); } } else { int interval = IEEE80211_SCAN_INTERVAL; @@ -1532,7 +1496,7 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata, struct beacon_data *presp; u8 *pos, *end; - sdata_assert_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); presp = sdata_dereference(ifibss->presp, sdata); @@ -1628,10 +1592,8 @@ void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, mgmt = (struct ieee80211_mgmt *) skb->data; fc = le16_to_cpu(mgmt->frame_control); - sdata_lock(sdata); - if (!sdata->u.ibss.ssid_len) - goto mgmt_out; /* not ready to merge yet */ + return; /* not ready to merge yet */ switch (fc & IEEE80211_FCTL_STYPE) { case IEEE80211_STYPE_PROBE_REQ: @@ -1671,9 +1633,6 @@ void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, break; } } - - mgmt_out: - sdata_unlock(sdata); } void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata) @@ -1681,15 +1640,13 @@ void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata) struct ieee80211_if_ibss *ifibss = &sdata->u.ibss; struct sta_info *sta; - sdata_lock(sdata); - /* * Work could be scheduled after scan or similar * when we aren't even joined (or trying) with a * network. */ if (!ifibss->ssid_len) - goto out; + return; spin_lock_bh(&ifibss->incomplete_lock); while (!list_empty(&ifibss->incomplete_stations)) { @@ -1715,9 +1672,6 @@ void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata) WARN_ON(1); break; } - - out: - sdata_unlock(sdata); } static void ieee80211_ibss_timer(struct timer_list *t) @@ -1744,7 +1698,8 @@ void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local) { struct ieee80211_sub_if_data *sdata; - mutex_lock(&local->iflist_mtx); + lockdep_assert_wiphy(local->hw.wiphy); + list_for_each_entry(sdata, &local->interfaces, list) { if (!ieee80211_sdata_running(sdata)) continue; @@ -1752,7 +1707,6 @@ void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local) continue; sdata->u.ibss.last_scan_completed = jiffies; } - mutex_unlock(&local->iflist_mtx); } int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata, @@ -1767,6 +1721,8 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata, int i; int ret; + lockdep_assert_wiphy(local->hw.wiphy); + if (params->chandef.chan->freq_offset) { /* this may work, but is untested */ return -EOPNOTSUPP; @@ -1787,10 +1743,8 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata, chanmode = (params->channel_fixed && !ret) ? IEEE80211_CHANCTX_SHARED : IEEE80211_CHANCTX_EXCLUSIVE; - mutex_lock(&local->chanctx_mtx); ret = ieee80211_check_combinations(sdata, ¶ms->chandef, chanmode, radar_detect_width); - mutex_unlock(&local->chanctx_mtx); if (ret < 0) return ret; diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 98ef1fe1226e..e92eaf835ee0 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -85,6 +85,12 @@ extern const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS]; #define IEEE80211_MAX_NAN_INSTANCE_ID 255 +enum ieee80211_status_data { + IEEE80211_STATUS_TYPE_MASK = 0x00f, + IEEE80211_STATUS_TYPE_INVALID = 0, + IEEE80211_STATUS_TYPE_SMPS = 1, + IEEE80211_STATUS_SUBDATA_MASK = 0xff0, +}; /* * Keep a station's queues on the active list for deficit accounting purposes @@ -461,13 +467,24 @@ struct ieee80211_sta_tx_tspec { bool downgraded; }; +/* Advertised TID-to-link mapping info */ +struct ieee80211_adv_ttlm_info { + /* time in TUs at which the new mapping is established, or 0 if there is + * no planned advertised TID-to-link mapping + */ + u16 switch_time; + u32 duration; /* duration of the planned T2L map in TUs */ + u16 map; /* map of usable links for all TIDs */ + bool active; /* whether the advertised mapping is active or not */ +}; + 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 wiphy_work monitor_work; struct wiphy_work beacon_connection_loss_work; struct wiphy_work csa_connection_drop_work; @@ -530,7 +547,7 @@ struct ieee80211_if_managed { /* TDLS support */ u8 tdls_peer[ETH_ALEN] __aligned(2); - struct delayed_work tdls_peer_del_work; + struct wiphy_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 */ @@ -544,7 +561,7 @@ struct ieee80211_if_managed { * 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; + struct wiphy_delayed_work tx_tspec_wk; /* Information elements from the last transmitted (Re)Association * Request frame. @@ -554,6 +571,10 @@ struct ieee80211_if_managed { struct wiphy_delayed_work ml_reconf_work; u16 removed_links; + + /* TID-to-link mapping support */ + struct wiphy_delayed_work ttlm_work; + struct ieee80211_adv_ttlm_info ttlm_info; }; struct ieee80211_if_ibss { @@ -618,8 +639,9 @@ struct ieee80211_if_ocb { * these declarations define the interface, which enables * vendor-specific mesh synchronization * + * @rx_bcn_presp: beacon/probe response was received + * @adjust_tsf: TSF adjustment method */ -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, @@ -859,12 +881,13 @@ enum txq_info_flags { * 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 + * @def_cvars: codel vars for the @tin's default_flow + * @cstats: code statistics for this queue * @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 + * @flags: TXQ flags from &enum txq_info_flags + * @txq: the driver visible part */ struct txq_info { struct fq_tin tin; @@ -893,7 +916,8 @@ struct ieee80211_if_mntr { * struct ieee80211_if_nan - NAN state * * @conf: current NAN configuration - * @func_ids: a bitmap of available instance_id's + * @func_lock: lock for @func_inst_ids + * @function_inst_ids: a bitmap of available instance_id's */ struct ieee80211_if_nan { struct cfg80211_nan_conf conf; @@ -926,6 +950,9 @@ struct ieee80211_link_data_managed { struct wiphy_delayed_work chswitch_work; struct wiphy_work request_smps_work; + /* used to reconfigure hardware SM PS */ + struct wiphy_work recalc_smps; + bool beacon_crc_valid; u32 beacon_crc; struct ewma_beacon_signal ave_beacon_signal; @@ -970,8 +997,8 @@ 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 */ + struct list_head assigned_chanctx_list; /* protected by wiphy mutex */ + struct list_head reserved_chanctx_list; /* protected by wiphy mutex */ /* multicast keys only */ struct ieee80211_key __rcu *gtk[NUM_DEFAULT_KEYS + @@ -981,18 +1008,18 @@ struct ieee80211_link_data { 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 */ + struct wiphy_work csa_finalize_work; + bool csa_block_tx; bool operating_11g_mode; struct cfg80211_chan_def csa_chandef; - struct work_struct color_change_finalize_work; + struct wiphy_work color_change_finalize_work; struct delayed_work color_collision_detect_work; u64 color_bitmap; - /* context reservation -- protected with chanctx_mtx */ + /* context reservation -- protected with wiphy mutex */ struct ieee80211_chanctx *reserved_chanctx; struct cfg80211_chan_def reserved_chandef; bool reserved_radar_required; @@ -1005,7 +1032,7 @@ struct ieee80211_link_data { int ap_power_level; /* in dBm */ bool radar_required; - struct delayed_work dfs_cac_timer_work; + struct wiphy_delayed_work dfs_cac_timer_work; union { struct ieee80211_link_data_managed mgd; @@ -1032,7 +1059,7 @@ struct ieee80211_sub_if_data { /* 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 wiphy_delayed_work dec_tailroom_needed_wk; struct net_device *dev; struct ieee80211_local *local; @@ -1064,9 +1091,6 @@ struct ieee80211_sub_if_data { atomic_t num_tx_queued; struct mac80211_qos_map __rcu *qos_map; - /* used to reconfigure hardware SM PS */ - struct work_struct recalc_smps; - struct wiphy_work work; struct sk_buff_head skb_queue; struct sk_buff_head status_queue; @@ -1106,7 +1130,7 @@ struct ieee80211_sub_if_data { struct ieee80211_link_data __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS]; /* for ieee80211_set_active_links_async() */ - struct work_struct activate_links_work; + struct wiphy_work activate_links_work; u16 desired_active_links; #ifdef CONFIG_MAC80211_DEBUGFS @@ -1129,62 +1153,8 @@ 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; -} + wiphy_dereference(sdata->local->hw.wiphy, p) static inline int ieee80211_get_mbssid_beacon_len(struct cfg80211_mbssid_elems *elems, @@ -1254,7 +1224,7 @@ struct tpt_led_trigger { #endif /** - * mac80211 scan flags - currently active scan mode + * enum 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 @@ -1272,7 +1242,7 @@ struct tpt_led_trigger { * and could send a probe request after receiving a beacon. * @SCAN_BEACON_DONE: Beacon received, we can now send a probe request */ -enum { +enum mac80211_scan_flags { SCAN_SW_SCANNING, SCAN_HW_SCANNING, SCAN_ONCHANNEL_SCANNING, @@ -1362,7 +1332,7 @@ struct ieee80211_local { spinlock_t filter_lock; /* used for uploading changed mc list */ - struct work_struct reconfig_filter; + struct wiphy_work reconfig_filter; /* aggregated multicast list */ struct netdev_hw_addr_list mc_list; @@ -1406,7 +1376,7 @@ struct ieee80211_local { /* wowlan is enabled -- don't reconfig on resume */ bool wowlan; - struct work_struct radar_detected_work; + struct wiphy_work radar_detected_work; /* number of RX chains the hardware has */ u8 rx_chains; @@ -1429,10 +1399,9 @@ struct ieee80211_local { /* Station data */ /* - * The mutex only protects the list, hash table and - * counter, reads are done with RCU. + * The list, hash table and counter are protected + * by the wiphy mutex, reads are done with RCU. */ - struct mutex sta_mtx; spinlock_t tim_lock; unsigned long num_sta; struct list_head sta_list; @@ -1461,15 +1430,6 @@ struct ieee80211_local { 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; @@ -1483,14 +1443,14 @@ struct ieee80211_local { int hw_scan_ies_bufsize; struct cfg80211_scan_info scan_info; - struct work_struct sched_scan_stopped_work; + struct wiphy_work 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 wiphy_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; @@ -1500,7 +1460,6 @@ struct ieee80211_local { /* 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; @@ -1554,8 +1513,8 @@ struct ieee80211_local { * 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 wiphy_work dynamic_ps_enable_work; + struct wiphy_work dynamic_ps_disable_work; struct timer_list dynamic_ps_timer; struct notifier_block ifa_notifier; struct notifier_block ifa6_notifier; @@ -1583,9 +1542,9 @@ struct ieee80211_local { /* * Remain-on-channel support */ - struct delayed_work roc_work; + struct wiphy_delayed_work roc_work; struct list_head roc_list; - struct work_struct hw_roc_start, hw_roc_done; + struct wiphy_work hw_roc_start, hw_roc_done; unsigned long hw_roc_start_time; u64 roc_cookie_counter; @@ -1733,6 +1692,8 @@ struct ieee802_11_elems { const struct ieee80211_eht_operation *eht_operation; const struct ieee80211_multi_link_elem *ml_basic; const struct ieee80211_multi_link_elem *ml_reconf; + const struct ieee80211_bandwidth_indication *bandwidth_indication; + const struct ieee80211_ttlm_elem *ttlm[IEEE80211_TTLM_MAX_CNT]; /* length of them, respectively */ u8 ext_capab_len; @@ -1766,6 +1727,8 @@ struct ieee802_11_elems { /* The reconfiguration Multi-Link element in the original IEs */ const struct element *ml_reconf_elem; + u8 ttlm_num; + /* * store the per station profile pointer and length in case that the * parsing also handled Multi-Link element parsing for a specific link @@ -1929,12 +1892,11 @@ int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata, u64 *changed); /* scan/BSS handling */ -void ieee80211_scan_work(struct work_struct *work); +void ieee80211_scan_work(struct wiphy *wiphy, struct wiphy_work *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); + unsigned int n_channels); int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata, struct cfg80211_scan_request *req); void ieee80211_scan_cancel(struct ieee80211_local *local); @@ -1962,7 +1924,8 @@ 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); +void ieee80211_sched_scan_stopped_work(struct wiphy *wiphy, + struct wiphy_work *work); /* off-channel/mgmt-tx */ void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local); @@ -1982,12 +1945,13 @@ 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); +void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *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); +void ieee80211_color_change_finalize_work(struct wiphy *wiphy, + struct wiphy_work *work); void ieee80211_color_collision_detection_work(struct work_struct *work); /* interface handling */ @@ -2037,8 +2001,10 @@ void ieee80211_link_init(struct ieee80211_sub_if_data *sdata, void ieee80211_link_stop(struct ieee80211_link_data *link); int ieee80211_vif_set_links(struct ieee80211_sub_if_data *sdata, u16 new_links, u16 dormant_links); -void ieee80211_vif_clear_links(struct ieee80211_sub_if_data *sdata); -int __ieee80211_set_active_links(struct ieee80211_vif *vif, u16 active_links); +static inline void ieee80211_vif_clear_links(struct ieee80211_sub_if_data *sdata) +{ + ieee80211_vif_set_links(sdata, 0, 0); +} /* tx handling */ void ieee80211_clear_tx_pending(struct ieee80211_local *local); @@ -2060,7 +2026,7 @@ 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, + int retry_count, bool send_to_cooked, struct ieee80211_tx_status *status); void ieee80211_check_fast_xmit(struct sta_info *sta); @@ -2093,19 +2059,17 @@ void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata, 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); + const u8 *bssid, int link_id); 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_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, @@ -2122,13 +2086,11 @@ void ieee80211_process_addba_request(struct ieee80211_local *local, 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_ba_session_work(struct wiphy *wiphy, struct wiphy_work *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); @@ -2206,7 +2168,7 @@ void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata, * 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. + * 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, @@ -2238,8 +2200,7 @@ static inline int __ieee80211_resume(struct ieee80211_hw *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); + int rate, int erp, int short_preamble); void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata, struct ieee80211_tx_queue_params *qparam, int ac); @@ -2334,8 +2295,6 @@ ieee802_11_parse_elems(const u8 *start, size_t len, bool action, return ieee802_11_parse_elems_crc(start, len, action, 0, 0, bss); } -void ieee80211_fragment_element(struct sk_buff *skb, u8 *len_pos, u8 frag_id); - extern const int ieee802_1d_to_ac[8]; static inline int ieee80211_ac_from_tid(int tid) @@ -2343,8 +2302,10 @@ 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_enable_work(struct wiphy *wiphy, + struct wiphy_work *work); +void ieee80211_dynamic_ps_disable_work(struct wiphy *wiphy, + struct wiphy_work *work); void ieee80211_dynamic_ps_timer(struct timer_list *t); void ieee80211_send_nullfunc(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata, @@ -2522,7 +2483,7 @@ 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(const struct ieee80211_eht_operation *eht_oper, +void ieee80211_chandef_eht_oper(const struct ieee80211_eht_operation_info *info, bool support_160, bool support_320, struct cfg80211_chan_def *chandef); bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata, @@ -2564,9 +2525,10 @@ void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local, struct ieee80211_link_data *rsvd_for); bool ieee80211_is_radar_required(struct ieee80211_local *local); -void ieee80211_dfs_cac_timer_work(struct work_struct *work); +void ieee80211_dfs_cac_timer_work(struct wiphy *wiphy, struct wiphy_work *work); void ieee80211_dfs_cac_cancel(struct ieee80211_local *local); -void ieee80211_dfs_radar_detected_work(struct work_struct *work); +void ieee80211_dfs_radar_detected_work(struct wiphy *wiphy, + struct wiphy_work *work); int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata, struct cfg80211_csa_settings *csa_settings); @@ -2588,7 +2550,7 @@ int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, 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); +void ieee80211_tdls_peer_del_work(struct wiphy *wiphy, struct wiphy_work *wk); int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev, const u8 *addr, u8 oper_class, struct cfg80211_chan_def *chandef); diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index be586bc0b5b7..510f8aead4f9 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -33,14 +33,13 @@ * The interface list in each struct ieee80211_local is protected * three-fold: * - * (1) modifications may only be done under the RTNL - * (2) modifications and readers are protected against each other by - * the iflist_mtx. - * (3) modifications are done in an RCU manner so atomic readers + * (1) modifications may only be done under the RTNL *and* wiphy mutex + * *and* iflist_mtx + * (2) modifications are done in an RCU manner so atomic readers * can traverse the list in RCU-safe blocks. * * As a consequence, reads (traversals) of the list can be protected - * by either the RTNL, the iflist_mtx or RCU. + * by either the RTNL, the wiphy mutex, the iflist_mtx or RCU. */ static void ieee80211_iface_work(struct wiphy *wiphy, struct wiphy_work *work); @@ -110,7 +109,7 @@ static u32 __ieee80211_recalc_idle(struct ieee80211_local *local, bool working, scanning, active; unsigned int led_trig_start = 0, led_trig_stop = 0; - lockdep_assert_held(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); active = force_active || !list_empty(&local->chanctx_list) || @@ -160,6 +159,8 @@ static int ieee80211_verify_mac(struct ieee80211_sub_if_data *sdata, u8 *addr, u8 *m; int ret = 0; + lockdep_assert_wiphy(local->hw.wiphy); + if (is_zero_ether_addr(local->hw.wiphy->addr_mask)) return 0; @@ -176,7 +177,6 @@ static int ieee80211_verify_mac(struct ieee80211_sub_if_data *sdata, u8 *addr, if (!check_dup) return ret; - mutex_lock(&local->iflist_mtx); list_for_each_entry(iter, &local->interfaces, list) { if (iter == sdata) continue; @@ -195,7 +195,6 @@ static int ieee80211_verify_mac(struct ieee80211_sub_if_data *sdata, u8 *addr, break; } } - mutex_unlock(&local->iflist_mtx); return ret; } @@ -207,6 +206,8 @@ static int ieee80211_can_powered_addr_change(struct ieee80211_sub_if_data *sdata struct ieee80211_sub_if_data *scan_sdata; int ret = 0; + lockdep_assert_wiphy(local->hw.wiphy); + /* To be the most flexible here we want to only limit changing the * address if the specific interface is doing offchannel work or * scanning. @@ -214,8 +215,6 @@ static int ieee80211_can_powered_addr_change(struct ieee80211_sub_if_data *sdata if (netif_carrier_ok(sdata->dev)) return -EBUSY; - mutex_lock(&local->mtx); - /* First check no ROC work is happening on this iface */ list_for_each_entry(roc, &local->roc_list, list) { if (roc->sdata != sdata) @@ -230,7 +229,7 @@ static int ieee80211_can_powered_addr_change(struct ieee80211_sub_if_data *sdata /* And if this iface is scanning */ if (local->scanning) { scan_sdata = rcu_dereference_protected(local->scan_sdata, - lockdep_is_held(&local->mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); if (sdata == scan_sdata) ret = -EBUSY; } @@ -247,13 +246,12 @@ static int ieee80211_can_powered_addr_change(struct ieee80211_sub_if_data *sdata } unlock: - mutex_unlock(&local->mtx); return ret; } -static int ieee80211_change_mac(struct net_device *dev, void *addr) +static int _ieee80211_change_mac(struct ieee80211_sub_if_data *sdata, + void *addr) { - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = sdata->local; struct sockaddr *sa = addr; bool check_dup = true; @@ -278,7 +276,7 @@ static int ieee80211_change_mac(struct net_device *dev, void *addr) if (live) drv_remove_interface(local, sdata); - ret = eth_mac_addr(dev, sa); + ret = eth_mac_addr(sdata->dev, sa); if (ret == 0) { memcpy(sdata->vif.addr, sa->sa_data, ETH_ALEN); @@ -294,6 +292,19 @@ static int ieee80211_change_mac(struct net_device *dev, void *addr) return ret; } +static int ieee80211_change_mac(struct net_device *dev, void *addr) +{ + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_local *local = sdata->local; + int ret; + + wiphy_lock(local->hw.wiphy); + ret = _ieee80211_change_mac(sdata, addr); + wiphy_unlock(local->hw.wiphy); + + return ret; +} + static inline int identical_mac_addr_allowed(int type1, int type2) { return type1 == NL80211_IFTYPE_MONITOR || @@ -311,9 +322,9 @@ static int ieee80211_check_concurrent_iface(struct ieee80211_sub_if_data *sdata, { struct ieee80211_local *local = sdata->local; struct ieee80211_sub_if_data *nsdata; - int ret; ASSERT_RTNL(); + lockdep_assert_wiphy(local->hw.wiphy); /* we hold the RTNL here so can safely walk the list */ list_for_each_entry(nsdata, &local->interfaces, list) { @@ -378,10 +389,7 @@ static int ieee80211_check_concurrent_iface(struct ieee80211_sub_if_data *sdata, } } - mutex_lock(&local->chanctx_mtx); - ret = ieee80211_check_combinations(sdata, NULL, 0, 0); - mutex_unlock(&local->chanctx_mtx); - return ret; + return ieee80211_check_combinations(sdata, NULL, 0, 0); } static int ieee80211_check_queues(struct ieee80211_sub_if_data *sdata, @@ -430,12 +438,13 @@ static int ieee80211_open(struct net_device *dev) if (!is_valid_ether_addr(dev->dev_addr)) return -EADDRNOTAVAIL; + wiphy_lock(sdata->local->hw.wiphy); err = ieee80211_check_concurrent_iface(sdata, sdata->vif.type); if (err) - return err; + goto out; - wiphy_lock(sdata->local->hw.wiphy); err = ieee80211_do_open(&sdata->wdev, true); +out: wiphy_unlock(sdata->local->hw.wiphy); return err; @@ -453,6 +462,8 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, bool going_do bool cancel_scan; struct cfg80211_nan_func *func; + lockdep_assert_wiphy(local->hw.wiphy); + clear_bit(SDATA_STATE_RUNNING, &sdata->state); synchronize_rcu(); /* flush _ieee80211_wake_txqs() */ @@ -516,16 +527,12 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, bool going_do } del_timer_sync(&local->dynamic_ps_timer); - cancel_work_sync(&local->dynamic_ps_enable_work); + wiphy_work_cancel(local->hw.wiphy, &local->dynamic_ps_enable_work); - cancel_work_sync(&sdata->recalc_smps); - - sdata_lock(sdata); WARN(ieee80211_vif_is_mld(&sdata->vif), "destroying interface with valid links 0x%04x\n", sdata->vif.valid_links); - mutex_lock(&local->mtx); sdata->vif.bss_conf.csa_active = false; if (sdata->vif.type == NL80211_IFTYPE_STATION) sdata->deflink.u.mgd.csa_waiting_bcn = false; @@ -534,20 +541,17 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, bool going_do IEEE80211_QUEUE_STOP_REASON_CSA); sdata->deflink.csa_block_tx = false; } - mutex_unlock(&local->mtx); - sdata_unlock(sdata); - - cancel_work_sync(&sdata->deflink.csa_finalize_work); - cancel_work_sync(&sdata->deflink.color_change_finalize_work); - cancel_delayed_work_sync(&sdata->deflink.dfs_cac_timer_work); + wiphy_work_cancel(local->hw.wiphy, &sdata->deflink.csa_finalize_work); + wiphy_work_cancel(local->hw.wiphy, + &sdata->deflink.color_change_finalize_work); + wiphy_delayed_work_cancel(local->hw.wiphy, + &sdata->deflink.dfs_cac_timer_work); if (sdata->wdev.cac_started) { chandef = sdata->vif.bss_conf.chandef; WARN_ON(local->suspended); - mutex_lock(&local->mtx); ieee80211_link_release_channel(&sdata->deflink); - mutex_unlock(&local->mtx); cfg80211_cac_event(sdata->dev, &chandef, NL80211_RADAR_CAC_ABORTED, GFP_KERNEL); @@ -575,9 +579,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, bool going_do switch (sdata->vif.type) { case NL80211_IFTYPE_AP_VLAN: - mutex_lock(&local->mtx); list_del(&sdata->u.vlan.list); - mutex_unlock(&local->mtx); RCU_INIT_POINTER(sdata->vif.bss_conf.chanctx_conf, NULL); /* see comment in the default case below */ ieee80211_free_keys(sdata, true); @@ -675,9 +677,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, bool going_do if (local->monitors == 0) ieee80211_del_virtual_monitor(local); - mutex_lock(&local->mtx); ieee80211_recalc_idle(local); - mutex_unlock(&local->mtx); if (!(sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE)) break; @@ -691,7 +691,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, bool going_do ieee80211_recalc_ps(local); if (cancel_scan) - flush_delayed_work(&local->scan_work); + wiphy_delayed_work_flush(local->hw.wiphy, &local->scan_work); if (local->open_count == 0) { ieee80211_stop_device(local); @@ -750,9 +750,9 @@ static int ieee80211_stop(struct net_device *dev) ieee80211_stop_mbssid(sdata); } - cancel_work_sync(&sdata->activate_links_work); - wiphy_lock(sdata->local->hw.wiphy); + wiphy_work_cancel(sdata->local->hw.wiphy, &sdata->activate_links_work); + ieee80211_do_stop(sdata, true); wiphy_unlock(sdata->local->hw.wiphy); @@ -779,7 +779,7 @@ static void ieee80211_set_multicast_list(struct net_device *dev) spin_lock_bh(&local->filter_lock); __hw_addr_sync(&local->mc_list, &dev->mc, dev->addr_len); spin_unlock_bh(&local->filter_lock); - ieee80211_queue_work(&local->hw, &local->reconfig_filter); + wiphy_work_queue(local->hw.wiphy, &local->reconfig_filter); } /* @@ -1046,7 +1046,7 @@ void ieee80211_recalc_offload(struct ieee80211_local *local) if (!ieee80211_hw_check(&local->hw, SUPPORTS_TX_ENCAP_OFFLOAD)) return; - mutex_lock(&local->iflist_mtx); + lockdep_assert_wiphy(local->hw.wiphy); list_for_each_entry(sdata, &local->interfaces, list) { if (!ieee80211_sdata_running(sdata)) @@ -1054,8 +1054,6 @@ void ieee80211_recalc_offload(struct ieee80211_local *local) ieee80211_recalc_sdata_offload(sdata); } - - mutex_unlock(&local->iflist_mtx); } void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata, @@ -1133,7 +1131,7 @@ int ieee80211_add_virtual_monitor(struct ieee80211_local *local) snprintf(sdata->name, IFNAMSIZ, "%s-monitor", wiphy_name(local->hw.wiphy)); sdata->wdev.iftype = NL80211_IFTYPE_MONITOR; - mutex_init(&sdata->wdev.mtx); + sdata->wdev.wiphy = local->hw.wiphy; ieee80211_sdata_init(local, sdata); @@ -1158,19 +1156,14 @@ int ieee80211_add_virtual_monitor(struct ieee80211_local *local) rcu_assign_pointer(local->monitor_sdata, sdata); mutex_unlock(&local->iflist_mtx); - sdata_lock(sdata); - mutex_lock(&local->mtx); ret = ieee80211_link_use_channel(&sdata->deflink, &local->monitor_chandef, IEEE80211_CHANCTX_EXCLUSIVE); - mutex_unlock(&local->mtx); - sdata_unlock(sdata); if (ret) { mutex_lock(&local->iflist_mtx); RCU_INIT_POINTER(local->monitor_sdata, NULL); mutex_unlock(&local->iflist_mtx); synchronize_net(); drv_remove_interface(local, sdata); - mutex_destroy(&sdata->wdev.mtx); kfree(sdata); return ret; } @@ -1206,15 +1199,10 @@ void ieee80211_del_virtual_monitor(struct ieee80211_local *local) synchronize_net(); - sdata_lock(sdata); - mutex_lock(&local->mtx); ieee80211_link_release_channel(&sdata->deflink); - mutex_unlock(&local->mtx); - sdata_unlock(sdata); drv_remove_interface(local, sdata); - mutex_destroy(&sdata->wdev.mtx); kfree(sdata); } @@ -1232,6 +1220,8 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up) int res; u32 hw_reconf_flags = 0; + lockdep_assert_wiphy(local->hw.wiphy); + switch (sdata->vif.type) { case NL80211_IFTYPE_AP_VLAN: { struct ieee80211_sub_if_data *master; @@ -1239,9 +1229,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up) if (!sdata->bss) return -ENOLINK; - mutex_lock(&local->mtx); list_add(&sdata->u.vlan.list, &sdata->bss->vlans); - mutex_unlock(&local->mtx); master = container_of(sdata->bss, struct ieee80211_sub_if_data, u.ap); @@ -1258,10 +1246,8 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up) sizeof(sdata->vif.hw_queue)); sdata->vif.bss_conf.chandef = master->vif.bss_conf.chandef; - mutex_lock(&local->key_mtx); sdata->crypto_tx_tailroom_needed_cnt += master->crypto_tx_tailroom_needed_cnt; - mutex_unlock(&local->key_mtx); break; } @@ -1352,9 +1338,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up) ieee80211_adjust_monitor_flags(sdata, 1); ieee80211_configure_filter(local); ieee80211_recalc_offload(local); - mutex_lock(&local->mtx); ieee80211_recalc_idle(local); - mutex_unlock(&local->mtx); netif_carrier_on(dev); break; @@ -1459,11 +1443,8 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up) drv_stop(local); err_del_bss: sdata->bss = NULL; - if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) { - mutex_lock(&local->mtx); + if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) list_del(&sdata->u.vlan.list); - mutex_unlock(&local->mtx); - } /* might already be clear but that doesn't matter */ clear_bit(SDATA_STATE_RUNNING, &sdata->state); return res; @@ -1490,12 +1471,13 @@ static void ieee80211_iface_process_skb(struct ieee80211_local *local, { struct ieee80211_mgmt *mgmt = (void *)skb->data; + lockdep_assert_wiphy(local->hw.wiphy); + if (ieee80211_is_action(mgmt->frame_control) && mgmt->u.action.category == WLAN_CATEGORY_BACK) { struct sta_info *sta; int len = skb->len; - mutex_lock(&local->sta_mtx); sta = sta_info_get_bss(sdata, mgmt->sa); if (sta) { switch (mgmt->u.action.u.addba_req.action_code) { @@ -1516,7 +1498,6 @@ static void ieee80211_iface_process_skb(struct ieee80211_local *local, break; } } - mutex_unlock(&local->sta_mtx); } else if (ieee80211_is_action(mgmt->frame_control) && mgmt->u.action.category == WLAN_CATEGORY_VHT) { switch (mgmt->u.action.u.vht_group_notif.action_code) { @@ -1530,7 +1511,6 @@ static void ieee80211_iface_process_skb(struct ieee80211_local *local, band = status->band; opmode = mgmt->u.action.u.vht_opmode_notif.operating_mode; - mutex_lock(&local->sta_mtx); sta = sta_info_get_bss(sdata, mgmt->sa); if (sta) @@ -1538,7 +1518,6 @@ static void ieee80211_iface_process_skb(struct ieee80211_local *local, &sta->deflink, opmode, band); - mutex_unlock(&local->sta_mtx); break; } case WLAN_VHT_ACTION_GROUPID_MGMT: @@ -1585,7 +1564,6 @@ static void ieee80211_iface_process_skb(struct ieee80211_local *local, * a block-ack session was active. That cannot be * right, so terminate the session. */ - mutex_lock(&local->sta_mtx); sta = sta_info_get_bss(sdata, mgmt->sa); if (sta) { u16 tid = ieee80211_get_tid(hdr); @@ -1595,7 +1573,6 @@ static void ieee80211_iface_process_skb(struct ieee80211_local *local, WLAN_REASON_QSTA_REQUIRE_SETUP, true); } - mutex_unlock(&local->sta_mtx); } else switch (sdata->vif.type) { case NL80211_IFTYPE_STATION: ieee80211_sta_rx_queued_mgmt(sdata, skb); @@ -1692,15 +1669,8 @@ static void ieee80211_iface_work(struct wiphy *wiphy, struct wiphy_work *work) } } -static void ieee80211_recalc_smps_work(struct work_struct *work) -{ - struct ieee80211_sub_if_data *sdata = - container_of(work, struct ieee80211_sub_if_data, recalc_smps); - - ieee80211_recalc_smps(sdata, &sdata->deflink); -} - -static void ieee80211_activate_links_work(struct work_struct *work) +static void ieee80211_activate_links_work(struct wiphy *wiphy, + struct wiphy_work *work) { struct ieee80211_sub_if_data *sdata = container_of(work, struct ieee80211_sub_if_data, @@ -1745,8 +1715,8 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata, skb_queue_head_init(&sdata->skb_queue); skb_queue_head_init(&sdata->status_queue); wiphy_work_init(&sdata->work, ieee80211_iface_work); - INIT_WORK(&sdata->recalc_smps, ieee80211_recalc_smps_work); - INIT_WORK(&sdata->activate_links_work, ieee80211_activate_links_work); + wiphy_work_init(&sdata->activate_links_work, + ieee80211_activate_links_work); switch (type) { case NL80211_IFTYPE_P2P_GO: @@ -1936,6 +1906,8 @@ static void ieee80211_assign_perm_addr(struct ieee80211_local *local, u8 tmp_addr[ETH_ALEN]; int i; + lockdep_assert_wiphy(local->hw.wiphy); + /* default ... something at least */ memcpy(perm_addr, local->hw.wiphy->perm_addr, ETH_ALEN); @@ -1943,8 +1915,6 @@ static void ieee80211_assign_perm_addr(struct ieee80211_local *local, local->hw.wiphy->n_addresses <= 1) return; - mutex_lock(&local->iflist_mtx); - switch (type) { case NL80211_IFTYPE_MONITOR: /* doesn't matter */ @@ -1968,7 +1938,7 @@ static void ieee80211_assign_perm_addr(struct ieee80211_local *local, if (!ieee80211_sdata_running(sdata)) continue; memcpy(perm_addr, sdata->vif.addr, ETH_ALEN); - goto out_unlock; + return; } } fallthrough; @@ -2054,9 +2024,6 @@ static void ieee80211_assign_perm_addr(struct ieee80211_local *local, break; } - - out_unlock: - mutex_unlock(&local->iflist_mtx); } int ieee80211_if_add(struct ieee80211_local *local, const char *name, @@ -2070,6 +2037,7 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name, int ret, i; ASSERT_RTNL(); + lockdep_assert_wiphy(local->hw.wiphy); if (type == NL80211_IFTYPE_P2P_DEVICE || type == NL80211_IFTYPE_NAN) { struct wireless_dev *wdev; @@ -2157,8 +2125,8 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name, INIT_LIST_HEAD(&sdata->key_list); - INIT_DELAYED_WORK(&sdata->dec_tailroom_needed_wk, - ieee80211_delayed_tailroom_dec); + wiphy_delayed_work_init(&sdata->dec_tailroom_needed_wk, + ieee80211_delayed_tailroom_dec); for (i = 0; i < NUM_NL80211_BANDS; i++) { struct ieee80211_supported_band *sband; @@ -2236,6 +2204,7 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name, void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata) { ASSERT_RTNL(); + lockdep_assert_wiphy(sdata->local->hw.wiphy); mutex_lock(&sdata->local->iflist_mtx); list_del_rcu(&sdata->list); @@ -2281,19 +2250,30 @@ void ieee80211_remove_interfaces(struct ieee80211_local *local) */ cfg80211_shutdown_all_interfaces(local->hw.wiphy); + wiphy_lock(local->hw.wiphy); + WARN(local->open_count, "%s: open count remains %d\n", wiphy_name(local->hw.wiphy), local->open_count); - ieee80211_txq_teardown_flows(local); - mutex_lock(&local->iflist_mtx); list_splice_init(&local->interfaces, &unreg_list); mutex_unlock(&local->iflist_mtx); - wiphy_lock(local->hw.wiphy); list_for_each_entry_safe(sdata, tmp, &unreg_list, list) { bool netdev = sdata->dev; + /* + * Remove IP addresses explicitly, since the notifier will + * skip the callbacks if wdev->registered is false, since + * we can't acquire the wiphy_lock() again there if already + * inside this locked section. + */ + sdata->vif.cfg.arp_addr_cnt = 0; + if (sdata->vif.type == NL80211_IFTYPE_STATION && + sdata->u.mgd.associated) + ieee80211_vif_cfg_change_notify(sdata, + BSS_CHANGED_ARP_FILTER); + list_del(&sdata->list); cfg80211_unregister_wdev(&sdata->wdev); diff --git a/net/mac80211/key.c b/net/mac80211/key.c index 0665ff5e456e..e0ff3a753e15 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -53,11 +53,6 @@ static const u8 bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; -static void assert_key_lock(struct ieee80211_local *local) -{ - lockdep_assert_held(&local->key_mtx); -} - static void update_vlan_tailroom_need_count(struct ieee80211_sub_if_data *sdata, int delta) { @@ -67,7 +62,7 @@ update_vlan_tailroom_need_count(struct ieee80211_sub_if_data *sdata, int delta) return; /* crypto_tx_tailroom_needed_cnt is protected by this */ - assert_key_lock(sdata->local); + lockdep_assert_wiphy(sdata->local->hw.wiphy); rcu_read_lock(); @@ -98,7 +93,7 @@ static void increment_tailroom_need_count(struct ieee80211_sub_if_data *sdata) * http://mid.gmane.org/1308590980.4322.19.camel@jlt3.sipsolutions.net */ - assert_key_lock(sdata->local); + lockdep_assert_wiphy(sdata->local->hw.wiphy); update_vlan_tailroom_need_count(sdata, 1); @@ -114,7 +109,7 @@ static void increment_tailroom_need_count(struct ieee80211_sub_if_data *sdata) static void decrease_tailroom_need_count(struct ieee80211_sub_if_data *sdata, int delta) { - assert_key_lock(sdata->local); + lockdep_assert_wiphy(sdata->local->hw.wiphy); WARN_ON_ONCE(sdata->crypto_tx_tailroom_needed_cnt < delta); @@ -129,6 +124,7 @@ static int ieee80211_key_enable_hw_accel(struct ieee80211_key *key) int ret = -EOPNOTSUPP; might_sleep(); + lockdep_assert_wiphy(key->local->hw.wiphy); if (key->flags & KEY_FLAG_TAINTED) { /* If we get here, it's during resume and the key is @@ -151,8 +147,6 @@ static int ieee80211_key_enable_hw_accel(struct ieee80211_key *key) if (!key->local->ops->set_key) goto out_unsupported; - assert_key_lock(key->local); - sta = key->sta; /* @@ -242,14 +236,14 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key) if (!key || !key->local->ops->set_key) return; - assert_key_lock(key->local); - if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) return; sta = key->sta; sdata = key->sdata; + lockdep_assert_wiphy(key->local->hw.wiphy); + if (key->conf.link_id >= 0 && sdata->vif.active_links && !(sdata->vif.active_links & BIT(key->conf.link_id))) return; @@ -275,7 +269,7 @@ static int _ieee80211_set_tx_key(struct ieee80211_key *key, bool force) struct sta_info *sta = key->sta; struct ieee80211_local *local = key->local; - assert_key_lock(local); + lockdep_assert_wiphy(local->hw.wiphy); set_sta_flag(sta, WLAN_STA_USES_ENCRYPTION); @@ -300,7 +294,7 @@ static void ieee80211_pairwise_rekey(struct ieee80211_key *old, struct sta_info *sta = new->sta; int i; - assert_key_lock(local); + lockdep_assert_wiphy(local->hw.wiphy); if (new->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) { /* Extended Key ID key install, initial one or rekey */ @@ -317,11 +311,9 @@ static void ieee80211_pairwise_rekey(struct ieee80211_key *old, * job done for the few ms we need it.) */ set_sta_flag(sta, WLAN_STA_BLOCK_BA); - mutex_lock(&sta->ampdu_mlme.mtx); for (i = 0; i < IEEE80211_NUM_TIDS; i++) - ___ieee80211_stop_tx_ba_session(sta, i, - AGG_STOP_LOCAL_REQUEST); - mutex_unlock(&sta->ampdu_mlme.mtx); + __ieee80211_stop_tx_ba_session(sta, i, + AGG_STOP_LOCAL_REQUEST); } } else if (old) { /* Rekey without Extended Key ID. @@ -358,12 +350,14 @@ static void __ieee80211_set_default_key(struct ieee80211_link_data *link, struct ieee80211_sub_if_data *sdata = link->sdata; struct ieee80211_key *key = NULL; - assert_key_lock(sdata->local); + lockdep_assert_wiphy(sdata->local->hw.wiphy); if (idx >= 0 && idx < NUM_DEFAULT_KEYS) { - key = key_mtx_dereference(sdata->local, sdata->keys[idx]); + key = wiphy_dereference(sdata->local->hw.wiphy, + sdata->keys[idx]); if (!key) - key = key_mtx_dereference(sdata->local, link->gtk[idx]); + key = wiphy_dereference(sdata->local->hw.wiphy, + link->gtk[idx]); } if (uni) { @@ -382,9 +376,9 @@ static void __ieee80211_set_default_key(struct ieee80211_link_data *link, void ieee80211_set_default_key(struct ieee80211_link_data *link, int idx, bool uni, bool multi) { - mutex_lock(&link->sdata->local->key_mtx); + lockdep_assert_wiphy(link->sdata->local->hw.wiphy); + __ieee80211_set_default_key(link, idx, uni, multi); - mutex_unlock(&link->sdata->local->key_mtx); } static void @@ -393,11 +387,12 @@ __ieee80211_set_default_mgmt_key(struct ieee80211_link_data *link, int idx) struct ieee80211_sub_if_data *sdata = link->sdata; struct ieee80211_key *key = NULL; - assert_key_lock(sdata->local); + lockdep_assert_wiphy(sdata->local->hw.wiphy); if (idx >= NUM_DEFAULT_KEYS && idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS) - key = key_mtx_dereference(sdata->local, link->gtk[idx]); + key = wiphy_dereference(sdata->local->hw.wiphy, + link->gtk[idx]); rcu_assign_pointer(link->default_mgmt_key, key); @@ -407,9 +402,9 @@ __ieee80211_set_default_mgmt_key(struct ieee80211_link_data *link, int idx) void ieee80211_set_default_mgmt_key(struct ieee80211_link_data *link, int idx) { - mutex_lock(&link->sdata->local->key_mtx); + lockdep_assert_wiphy(link->sdata->local->hw.wiphy); + __ieee80211_set_default_mgmt_key(link, idx); - mutex_unlock(&link->sdata->local->key_mtx); } static void @@ -418,12 +413,13 @@ __ieee80211_set_default_beacon_key(struct ieee80211_link_data *link, int idx) struct ieee80211_sub_if_data *sdata = link->sdata; struct ieee80211_key *key = NULL; - assert_key_lock(sdata->local); + lockdep_assert_wiphy(sdata->local->hw.wiphy); if (idx >= NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS && idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS + NUM_DEFAULT_BEACON_KEYS) - key = key_mtx_dereference(sdata->local, link->gtk[idx]); + key = wiphy_dereference(sdata->local->hw.wiphy, + link->gtk[idx]); rcu_assign_pointer(link->default_beacon_key, key); @@ -433,9 +429,9 @@ __ieee80211_set_default_beacon_key(struct ieee80211_link_data *link, int idx) void ieee80211_set_default_beacon_key(struct ieee80211_link_data *link, int idx) { - mutex_lock(&link->sdata->local->key_mtx); + lockdep_assert_wiphy(link->sdata->local->hw.wiphy); + __ieee80211_set_default_beacon_key(link, idx); - mutex_unlock(&link->sdata->local->key_mtx); } static int ieee80211_key_replace(struct ieee80211_sub_if_data *sdata, @@ -452,6 +448,8 @@ static int ieee80211_key_replace(struct ieee80211_sub_if_data *sdata, bool defunikey, defmultikey, defmgmtkey, defbeaconkey; bool is_wep; + lockdep_assert_wiphy(sdata->local->hw.wiphy); + /* caller must provide at least one old/new */ if (WARN_ON(!new && !old)) return 0; @@ -482,7 +480,7 @@ static int ieee80211_key_replace(struct ieee80211_sub_if_data *sdata, if (sta) { link_sta = rcu_dereference_protected(sta->link[link_id], - lockdep_is_held(&sta->local->sta_mtx)); + lockdep_is_held(&sta->local->hw.wiphy->mtx)); if (!link_sta) return -ENOLINK; } @@ -510,12 +508,10 @@ static int ieee80211_key_replace(struct ieee80211_sub_if_data *sdata, ret = ieee80211_key_enable_hw_accel(new); } } else { - if (!new->local->wowlan) { + if (!new->local->wowlan) ret = ieee80211_key_enable_hw_accel(new); - } else { - assert_key_lock(new->local); + else new->flags |= KEY_FLAG_UPLOADED_TO_HARDWARE; - } } if (ret) @@ -541,17 +537,17 @@ static int ieee80211_key_replace(struct ieee80211_sub_if_data *sdata, ieee80211_check_fast_rx(sta); } else { defunikey = old && - old == key_mtx_dereference(sdata->local, - sdata->default_unicast_key); + old == wiphy_dereference(sdata->local->hw.wiphy, + sdata->default_unicast_key); defmultikey = old && - old == key_mtx_dereference(sdata->local, - link->default_multicast_key); + old == wiphy_dereference(sdata->local->hw.wiphy, + link->default_multicast_key); defmgmtkey = old && - old == key_mtx_dereference(sdata->local, - link->default_mgmt_key); + old == wiphy_dereference(sdata->local->hw.wiphy, + link->default_mgmt_key); defbeaconkey = old && - old == key_mtx_dereference(sdata->local, - link->default_beacon_key); + old == wiphy_dereference(sdata->local->hw.wiphy, + link->default_beacon_key); if (defunikey && !new) __ieee80211_set_default_key(link, -1, true, false); @@ -775,8 +771,9 @@ static void __ieee80211_key_destroy(struct ieee80211_key *key, if (delay_tailroom) { /* see ieee80211_delayed_tailroom_dec */ sdata->crypto_tx_tailroom_pending_dec++; - schedule_delayed_work(&sdata->dec_tailroom_needed_wk, - HZ/2); + wiphy_delayed_work_queue(sdata->local->hw.wiphy, + &sdata->dec_tailroom_needed_wk, + HZ / 2); } else { decrease_tailroom_need_count(sdata, 1); } @@ -859,13 +856,15 @@ int ieee80211_key_link(struct ieee80211_key *key, bool delay_tailroom = sdata->vif.type == NL80211_IFTYPE_STATION; int ret; - mutex_lock(&sdata->local->key_mtx); + lockdep_assert_wiphy(sdata->local->hw.wiphy); if (sta && pairwise) { struct ieee80211_key *alt_key; - old_key = key_mtx_dereference(sdata->local, sta->ptk[idx]); - alt_key = key_mtx_dereference(sdata->local, sta->ptk[idx ^ 1]); + old_key = wiphy_dereference(sdata->local->hw.wiphy, + sta->ptk[idx]); + alt_key = wiphy_dereference(sdata->local->hw.wiphy, + sta->ptk[idx ^ 1]); /* The rekey code assumes that the old and new key are using * the same cipher. Enforce the assumption for pairwise keys. @@ -881,21 +880,20 @@ int ieee80211_key_link(struct ieee80211_key *key, if (link_id >= 0) { link_sta = rcu_dereference_protected(sta->link[link_id], - lockdep_is_held(&sta->local->sta_mtx)); - if (!link_sta) { - ret = -ENOLINK; - goto out; - } + lockdep_is_held(&sta->local->hw.wiphy->mtx)); + if (!link_sta) + return -ENOLINK; } - old_key = key_mtx_dereference(sdata->local, link_sta->gtk[idx]); + old_key = wiphy_dereference(sdata->local->hw.wiphy, + link_sta->gtk[idx]); } else { if (idx < NUM_DEFAULT_KEYS) - old_key = key_mtx_dereference(sdata->local, - sdata->keys[idx]); + old_key = wiphy_dereference(sdata->local->hw.wiphy, + sdata->keys[idx]); if (!old_key) - old_key = key_mtx_dereference(sdata->local, - link->gtk[idx]); + old_key = wiphy_dereference(sdata->local->hw.wiphy, + link->gtk[idx]); } /* Non-pairwise keys must also not switch the cipher on rekey */ @@ -912,7 +910,7 @@ int ieee80211_key_link(struct ieee80211_key *key, */ if (ieee80211_key_identical(sdata, old_key, key)) { ret = -EALREADY; - goto unlock; + goto out; } key->local = sdata->local; @@ -940,9 +938,6 @@ int ieee80211_key_link(struct ieee80211_key *key, out: ieee80211_key_free_unused(key); - unlock: - mutex_unlock(&sdata->local->key_mtx); - return ret; } @@ -968,8 +963,6 @@ void ieee80211_reenable_keys(struct ieee80211_sub_if_data *sdata) lockdep_assert_wiphy(sdata->local->hw.wiphy); - mutex_lock(&sdata->local->key_mtx); - sdata->crypto_tx_tailroom_needed_cnt = 0; sdata->crypto_tx_tailroom_pending_dec = 0; @@ -986,8 +979,6 @@ void ieee80211_reenable_keys(struct ieee80211_sub_if_data *sdata) ieee80211_key_enable_hw_accel(key); } } - - mutex_unlock(&sdata->local->key_mtx); } void ieee80211_iter_keys(struct ieee80211_hw *hw, @@ -1005,7 +996,6 @@ void ieee80211_iter_keys(struct ieee80211_hw *hw, lockdep_assert_wiphy(hw->wiphy); - mutex_lock(&local->key_mtx); if (vif) { sdata = vif_to_sdata(vif); list_for_each_entry_safe(key, tmp, &sdata->key_list, list) @@ -1020,7 +1010,6 @@ void ieee80211_iter_keys(struct ieee80211_hw *hw, key->sta ? &key->sta->sta : NULL, &key->conf, iter_data); } - mutex_unlock(&local->key_mtx); } EXPORT_SYMBOL(ieee80211_iter_keys); @@ -1100,7 +1089,8 @@ void ieee80211_remove_link_keys(struct ieee80211_link_data *link, struct ieee80211_local *local = sdata->local; struct ieee80211_key *key, *tmp; - mutex_lock(&local->key_mtx); + lockdep_assert_wiphy(local->hw.wiphy); + list_for_each_entry_safe(key, tmp, &sdata->key_list, list) { if (key->conf.link_id != link->link_id) continue; @@ -1109,7 +1099,6 @@ void ieee80211_remove_link_keys(struct ieee80211_link_data *link, key, NULL); list_add_tail(&key->list, keys); } - mutex_unlock(&local->key_mtx); } void ieee80211_free_key_list(struct ieee80211_local *local, @@ -1117,10 +1106,10 @@ void ieee80211_free_key_list(struct ieee80211_local *local, { struct ieee80211_key *key, *tmp; - mutex_lock(&local->key_mtx); + lockdep_assert_wiphy(local->hw.wiphy); + list_for_each_entry_safe(key, tmp, keys, list) __ieee80211_key_destroy(key, false); - mutex_unlock(&local->key_mtx); } void ieee80211_free_keys(struct ieee80211_sub_if_data *sdata, @@ -1132,9 +1121,10 @@ void ieee80211_free_keys(struct ieee80211_sub_if_data *sdata, struct ieee80211_key *key, *tmp; LIST_HEAD(keys); - cancel_delayed_work_sync(&sdata->dec_tailroom_needed_wk); + wiphy_delayed_work_cancel(local->hw.wiphy, + &sdata->dec_tailroom_needed_wk); - mutex_lock(&local->key_mtx); + lockdep_assert_wiphy(local->hw.wiphy); ieee80211_free_keys_iface(sdata, &keys); @@ -1167,8 +1157,6 @@ void ieee80211_free_keys(struct ieee80211_sub_if_data *sdata, WARN_ON_ONCE(vlan->crypto_tx_tailroom_needed_cnt || vlan->crypto_tx_tailroom_pending_dec); } - - mutex_unlock(&local->key_mtx); } void ieee80211_free_sta_keys(struct ieee80211_local *local, @@ -1177,9 +1165,10 @@ void ieee80211_free_sta_keys(struct ieee80211_local *local, struct ieee80211_key *key; int i; - mutex_lock(&local->key_mtx); + lockdep_assert_wiphy(local->hw.wiphy); + for (i = 0; i < ARRAY_SIZE(sta->deflink.gtk); i++) { - key = key_mtx_dereference(local, sta->deflink.gtk[i]); + key = wiphy_dereference(local->hw.wiphy, sta->deflink.gtk[i]); if (!key) continue; ieee80211_key_replace(key->sdata, NULL, key->sta, @@ -1190,7 +1179,7 @@ void ieee80211_free_sta_keys(struct ieee80211_local *local, } for (i = 0; i < NUM_DEFAULT_KEYS; i++) { - key = key_mtx_dereference(local, sta->ptk[i]); + key = wiphy_dereference(local->hw.wiphy, sta->ptk[i]); if (!key) continue; ieee80211_key_replace(key->sdata, NULL, key->sta, @@ -1199,11 +1188,10 @@ void ieee80211_free_sta_keys(struct ieee80211_local *local, __ieee80211_key_destroy(key, key->sdata->vif.type == NL80211_IFTYPE_STATION); } - - mutex_unlock(&local->key_mtx); } -void ieee80211_delayed_tailroom_dec(struct work_struct *wk) +void ieee80211_delayed_tailroom_dec(struct wiphy *wiphy, + struct wiphy_work *wk) { struct ieee80211_sub_if_data *sdata; @@ -1226,11 +1214,9 @@ void ieee80211_delayed_tailroom_dec(struct work_struct *wk) * within an ESS this usually won't happen. */ - mutex_lock(&sdata->local->key_mtx); decrease_tailroom_need_count(sdata, sdata->crypto_tx_tailroom_pending_dec); sdata->crypto_tx_tailroom_pending_dec = 0; - mutex_unlock(&sdata->local->key_mtx); } void ieee80211_gtk_rekey_notify(struct ieee80211_vif *vif, const u8 *bssid, @@ -1359,7 +1345,7 @@ void ieee80211_remove_key(struct ieee80211_key_conf *keyconf) key = container_of(keyconf, struct ieee80211_key, conf); - assert_key_lock(key->local); + lockdep_assert_wiphy(key->local->hw.wiphy); /* * if key was uploaded, we assume the driver will/has remove(d) diff --git a/net/mac80211/key.h b/net/mac80211/key.h index f3df97df4b72..1fa0f4f78962 100644 --- a/net/mac80211/key.h +++ b/net/mac80211/key.h @@ -2,7 +2,7 @@ /* * Copyright 2002-2004, Instant802 Networks, Inc. * Copyright 2005, Devicescape Software, Inc. - * Copyright (C) 2019, 2022 Intel Corporation + * Copyright (C) 2019, 2022-2023 Intel Corporation */ #ifndef IEEE80211_KEY_H @@ -168,12 +168,7 @@ void ieee80211_reenable_keys(struct ieee80211_sub_if_data *sdata); int ieee80211_key_switch_links(struct ieee80211_sub_if_data *sdata, unsigned long del_links_mask, unsigned long add_links_mask); - -#define key_mtx_dereference(local, ref) \ - rcu_dereference_protected(ref, lockdep_is_held(&((local)->key_mtx))) -#define rcu_dereference_check_key_mtx(local, ref) \ - rcu_dereference_check(ref, lockdep_is_held(&((local)->key_mtx))) - -void ieee80211_delayed_tailroom_dec(struct work_struct *wk); +void ieee80211_delayed_tailroom_dec(struct wiphy *wiphy, + struct wiphy_work *wk); #endif /* IEEE80211_KEY_H */ diff --git a/net/mac80211/link.c b/net/mac80211/link.c index 6148208b320e..2a78374f6f04 100644 --- a/net/mac80211/link.c +++ b/net/mac80211/link.c @@ -37,16 +37,16 @@ void ieee80211_link_init(struct ieee80211_sub_if_data *sdata, link_conf->link_id = link_id; link_conf->vif = &sdata->vif; - INIT_WORK(&link->csa_finalize_work, - ieee80211_csa_finalize_work); - INIT_WORK(&link->color_change_finalize_work, - ieee80211_color_change_finalize_work); + wiphy_work_init(&link->csa_finalize_work, + ieee80211_csa_finalize_work); + wiphy_work_init(&link->color_change_finalize_work, + ieee80211_color_change_finalize_work); INIT_DELAYED_WORK(&link->color_collision_detect_work, ieee80211_color_collision_detection_work); INIT_LIST_HEAD(&link->assigned_chanctx_list); INIT_LIST_HEAD(&link->reserved_chanctx_list); - INIT_DELAYED_WORK(&link->dfs_cac_timer_work, - ieee80211_dfs_cac_timer_work); + wiphy_delayed_work_init(&link->dfs_cac_timer_work, + ieee80211_dfs_cac_timer_work); if (!deflink) { switch (sdata->vif.type) { @@ -191,7 +191,7 @@ static int ieee80211_vif_update_links(struct ieee80211_sub_if_data *sdata, struct ieee80211_link_data *old_data[IEEE80211_MLD_MAX_NUM_LINKS]; bool use_deflink = old_links == 0; /* set for error case */ - sdata_assert_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); memset(to_free, 0, sizeof(links)); @@ -303,23 +303,6 @@ int ieee80211_vif_set_links(struct ieee80211_sub_if_data *sdata, return ret; } -void ieee80211_vif_clear_links(struct ieee80211_sub_if_data *sdata) -{ - struct link_container *links[IEEE80211_MLD_MAX_NUM_LINKS]; - - /* - * The locking here is different because when we free links - * in the station case we need to be able to cancel_work_sync() - * something that also takes the lock. - */ - - sdata_lock(sdata); - ieee80211_vif_update_links(sdata, links, 0, 0); - sdata_unlock(sdata); - - ieee80211_free_links(sdata, links); -} - static int _ieee80211_set_active_links(struct ieee80211_sub_if_data *sdata, u16 active_links) { @@ -447,17 +430,15 @@ static int _ieee80211_set_active_links(struct ieee80211_sub_if_data *sdata, return 0; } -int __ieee80211_set_active_links(struct ieee80211_vif *vif, u16 active_links) +int ieee80211_set_active_links(struct ieee80211_vif *vif, u16 active_links) { struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); struct ieee80211_local *local = sdata->local; u16 old_active; int ret; - sdata_assert_lock(sdata); - mutex_lock(&local->sta_mtx); - mutex_lock(&local->mtx); - mutex_lock(&local->key_mtx); + lockdep_assert_wiphy(local->hw.wiphy); + old_active = sdata->vif.active_links; if (old_active & active_links) { /* @@ -473,21 +454,6 @@ int __ieee80211_set_active_links(struct ieee80211_vif *vif, u16 active_links) /* otherwise switch directly */ ret = _ieee80211_set_active_links(sdata, active_links); } - mutex_unlock(&local->key_mtx); - mutex_unlock(&local->mtx); - mutex_unlock(&local->sta_mtx); - - return ret; -} - -int ieee80211_set_active_links(struct ieee80211_vif *vif, u16 active_links) -{ - struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); - int ret; - - sdata_lock(sdata); - ret = __ieee80211_set_active_links(vif, active_links); - sdata_unlock(sdata); return ret; } @@ -512,6 +478,6 @@ void ieee80211_set_active_links_async(struct ieee80211_vif *vif, return; sdata->desired_active_links = active_links; - schedule_work(&sdata->activate_links_work); + wiphy_work_queue(sdata->local->hw.wiphy, &sdata->activate_links_work); } EXPORT_SYMBOL_GPL(ieee80211_set_active_links_async); diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 24315d7b3126..b46f4d733c5d 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -84,7 +84,8 @@ void ieee80211_configure_filter(struct ieee80211_local *local) local->filter_flags = new_flags & ~(1<<31); } -static void ieee80211_reconfig_filter(struct work_struct *work) +static void ieee80211_reconfig_filter(struct wiphy *wiphy, + struct wiphy_work *work) { struct ieee80211_local *local = container_of(work, struct ieee80211_local, reconfig_filter); @@ -206,7 +207,8 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed) BSS_CHANGED_PS |\ BSS_CHANGED_IBSS |\ BSS_CHANGED_ARP_FILTER |\ - BSS_CHANGED_SSID) + BSS_CHANGED_SSID |\ + BSS_CHANGED_MLD_VALID_LINKS) void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, u64 changed) @@ -335,14 +337,12 @@ static void ieee80211_restart_work(struct work_struct *work) struct ieee80211_sub_if_data *sdata; int ret; - /* wait for scan work complete */ flush_workqueue(local->workqueue); - flush_work(&local->sched_scan_stopped_work); - flush_work(&local->radar_detected_work); rtnl_lock(); /* we might do interface manipulations, so need both */ wiphy_lock(local->hw.wiphy); + wiphy_work_flush(local->hw.wiphy, NULL); WARN(test_bit(SCAN_HW_SCANNING, &local->scanning), "%s called with hardware scan in progress\n", __func__); @@ -366,21 +366,19 @@ static void ieee80211_restart_work(struct work_struct *work) */ wiphy_work_cancel(local->hw.wiphy, &sdata->u.mgd.csa_connection_drop_work); - if (sdata->vif.bss_conf.csa_active) { - sdata_lock(sdata); + if (sdata->vif.bss_conf.csa_active) ieee80211_sta_connection_lost(sdata, WLAN_REASON_UNSPECIFIED, false); - sdata_unlock(sdata); - } } - flush_delayed_work(&sdata->dec_tailroom_needed_wk); + wiphy_delayed_work_flush(local->hw.wiphy, + &sdata->dec_tailroom_needed_wk); } ieee80211_scan_cancel(local); /* make sure any new ROC will consider local->in_reconfig */ - flush_delayed_work(&local->roc_work); - flush_work(&local->hw_roc_done); + wiphy_delayed_work_flush(local->hw.wiphy, &local->roc_work); + wiphy_work_flush(local->hw.wiphy, &local->hw_roc_done); /* wait for all packet processing to be done */ synchronize_net(); @@ -439,7 +437,7 @@ static int ieee80211_ifa_changed(struct notifier_block *nb, if (!wdev) return NOTIFY_DONE; - if (wdev->wiphy != local->hw.wiphy) + if (wdev->wiphy != local->hw.wiphy || !wdev->registered) return NOTIFY_DONE; sdata = IEEE80211_DEV_TO_SUB_IF(ndev); @@ -454,7 +452,25 @@ static int ieee80211_ifa_changed(struct notifier_block *nb, return NOTIFY_DONE; ifmgd = &sdata->u.mgd; - sdata_lock(sdata); + + /* + * The nested here is needed to convince lockdep that this is + * all OK. Yes, we lock the wiphy mutex here while we already + * hold the notifier rwsem, that's the normal case. And yes, + * we also acquire the notifier rwsem again when unregistering + * a netdev while we already hold the wiphy mutex, so it does + * look like a typical ABBA deadlock. + * + * However, both of these things happen with the RTNL held + * already. Therefore, they can't actually happen, since the + * lock orders really are ABC and ACB, which is fine due to + * the RTNL (A). + * + * We still need to prevent recursion, which is accomplished + * by the !wdev->registered check above. + */ + mutex_lock_nested(&local->hw.wiphy->mtx, 1); + __acquire(&local->hw.wiphy->mtx); /* Copy the addresses to the vif config list */ ifa = rtnl_dereference(idev->ifa_list); @@ -471,7 +487,7 @@ static int ieee80211_ifa_changed(struct notifier_block *nb, if (ifmgd->associated) ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_ARP_FILTER); - sdata_unlock(sdata); + wiphy_unlock(local->hw.wiphy); return NOTIFY_OK; } @@ -784,9 +800,6 @@ struct ieee80211_hw *ieee80211_alloc_hw_nm(size_t priv_data_len, __hw_addr_init(&local->mc_list); mutex_init(&local->iflist_mtx); - mutex_init(&local->mtx); - - mutex_init(&local->key_mtx); spin_lock_init(&local->filter_lock); spin_lock_init(&local->rx_path_lock); spin_lock_init(&local->queue_stop_reason_lock); @@ -807,26 +820,25 @@ struct ieee80211_hw *ieee80211_alloc_hw_nm(size_t priv_data_len, spin_lock_init(&local->handle_wake_tx_queue_lock); INIT_LIST_HEAD(&local->chanctx_list); - mutex_init(&local->chanctx_mtx); - INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work); + wiphy_delayed_work_init(&local->scan_work, ieee80211_scan_work); INIT_WORK(&local->restart_work, ieee80211_restart_work); - INIT_WORK(&local->radar_detected_work, - ieee80211_dfs_radar_detected_work); + wiphy_work_init(&local->radar_detected_work, + ieee80211_dfs_radar_detected_work); - INIT_WORK(&local->reconfig_filter, ieee80211_reconfig_filter); + wiphy_work_init(&local->reconfig_filter, ieee80211_reconfig_filter); local->smps_mode = IEEE80211_SMPS_OFF; - INIT_WORK(&local->dynamic_ps_enable_work, - ieee80211_dynamic_ps_enable_work); - INIT_WORK(&local->dynamic_ps_disable_work, - ieee80211_dynamic_ps_disable_work); + wiphy_work_init(&local->dynamic_ps_enable_work, + ieee80211_dynamic_ps_enable_work); + wiphy_work_init(&local->dynamic_ps_disable_work, + ieee80211_dynamic_ps_disable_work); timer_setup(&local->dynamic_ps_timer, ieee80211_dynamic_ps_timer, 0); - INIT_WORK(&local->sched_scan_stopped_work, - ieee80211_sched_scan_stopped_work); + wiphy_work_init(&local->sched_scan_stopped_work, + ieee80211_sched_scan_stopped_work); spin_lock_init(&local->ack_status_lock); idr_init(&local->ack_status_frames); @@ -1055,6 +1067,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) supp_he = false; supp_eht = false; for (band = 0; band < NUM_NL80211_BANDS; band++) { + const struct ieee80211_sband_iftype_data *iftd; struct ieee80211_supported_band *sband; sband = local->hw.wiphy->bands[band]; @@ -1101,11 +1114,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) supp_ht = supp_ht || sband->ht_cap.ht_supported; supp_vht = supp_vht || sband->vht_cap.vht_supported; - for (i = 0; i < sband->n_iftype_data; i++) { - const struct ieee80211_sband_iftype_data *iftd; - - iftd = &sband->iftype_data[i]; - + for_each_sband_iftype_data(sband, i, iftd) { supp_he = supp_he || iftd->he_cap.has_he; supp_eht = supp_eht || iftd->eht_cap.has_eht; } @@ -1446,6 +1455,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) ieee80211_remove_interfaces(local); rtnl_unlock(); fail_rate: + ieee80211_txq_teardown_flows(local); fail_flows: ieee80211_led_exit(local); destroy_workqueue(local->workqueue); @@ -1482,13 +1492,17 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw) */ ieee80211_remove_interfaces(local); + ieee80211_txq_teardown_flows(local); + + wiphy_lock(local->hw.wiphy); + wiphy_delayed_work_cancel(local->hw.wiphy, &local->roc_work); + wiphy_work_cancel(local->hw.wiphy, &local->reconfig_filter); + wiphy_work_cancel(local->hw.wiphy, &local->sched_scan_stopped_work); + wiphy_work_cancel(local->hw.wiphy, &local->radar_detected_work); + wiphy_unlock(local->hw.wiphy); rtnl_unlock(); - cancel_delayed_work_sync(&local->roc_work); cancel_work_sync(&local->restart_work); - cancel_work_sync(&local->reconfig_filter); - flush_work(&local->sched_scan_stopped_work); - flush_work(&local->radar_detected_work); ieee80211_clear_tx_pending(local); rate_control_deinitialize(local); @@ -1519,7 +1533,6 @@ void ieee80211_free_hw(struct ieee80211_hw *hw) enum nl80211_band band; mutex_destroy(&local->iflist_mtx); - mutex_destroy(&local->mtx); if (local->wiphy_ciphers_allocated) { kfree(local->hw.wiphy->cipher_suites); diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index e31c312c124a..092a1dc7314d 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -1291,7 +1291,7 @@ ieee80211_mesh_process_chnswitch(struct ieee80211_sub_if_data *sdata, ieee80211_conn_flags_t conn_flags = 0; u32 vht_cap_info = 0; - sdata_assert_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); sband = ieee80211_get_sband(sdata); if (!sband) @@ -1559,7 +1559,7 @@ int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata, struct mesh_csa_settings *tmp_csa_settings; int ret = 0; - lockdep_assert_held(&sdata->wdev.mtx); + lockdep_assert_wiphy(sdata->local->hw.wiphy); tmp_csa_settings = kmalloc(sizeof(*tmp_csa_settings), GFP_ATOMIC); @@ -1691,11 +1691,11 @@ void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, struct ieee80211_mgmt *mgmt; u16 stype; - sdata_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); /* mesh already went down */ if (!sdata->u.mesh.mesh_id_len) - goto out; + return; rx_status = IEEE80211_SKB_RXCB(skb); mgmt = (struct ieee80211_mgmt *) skb->data; @@ -1714,8 +1714,6 @@ void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, ieee80211_mesh_rx_mgmt_action(sdata, mgmt, skb->len, rx_status); break; } -out: - sdata_unlock(sdata); } static void mesh_bss_info_changed(struct ieee80211_sub_if_data *sdata) @@ -1745,11 +1743,11 @@ void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata) { struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; - sdata_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); /* mesh already went down */ if (!sdata->u.mesh.mesh_id_len) - goto out; + return; if (ifmsh->preq_queue_len && time_after(jiffies, @@ -1767,8 +1765,6 @@ void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata) if (test_and_clear_bit(MESH_WORK_MBSS_CHANGED, &ifmsh->wrkq_flags)) mesh_bss_info_changed(sdata); -out: - sdata_unlock(sdata); } diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c index d32e304eeb4b..3e52aaa57b1f 100644 --- a/net/mac80211/mesh_pathtbl.c +++ b/net/mac80211/mesh_pathtbl.c @@ -648,7 +648,7 @@ void mesh_fast_tx_flush_addr(struct ieee80211_sub_if_data *sdata, cache = &sdata->u.mesh.tx_cache; spin_lock_bh(&cache->walk_lock); - entry = rhashtable_lookup(&cache->rht, addr, fast_tx_rht_params); + entry = rhashtable_lookup_fast(&cache->rht, addr, fast_tx_rht_params); if (entry) mesh_fast_tx_entry_free(cache, entry); spin_unlock_bh(&cache->walk_lock); diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 0c9198997482..8d2514a9a6c4 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -110,7 +110,8 @@ ieee80211_extract_dis_subch_bmap(const struct ieee80211_eht_operation *eht_oper, return 0; /* set 160/320 supported to get the full AP definition */ - ieee80211_chandef_eht_oper(eht_oper, true, true, &ap_chandef); + ieee80211_chandef_eht_oper((const void *)eht_oper->optional, + true, true, &ap_chandef); ap_center_freq = ap_chandef.center_freq1; ap_bw = 20 * BIT(u8_get_bits(info->control, IEEE80211_EHT_OPER_CHAN_WIDTH)); @@ -175,7 +176,7 @@ ieee80211_handle_puncturing_bitmap(struct ieee80211_link_data *link, static void run_again(struct ieee80211_sub_if_data *sdata, unsigned long timeout) { - sdata_assert_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); if (!timer_pending(&sdata->u.mgd.timer) || time_before(timeout, sdata->u.mgd.timer.expires)) @@ -388,7 +389,7 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata, if (eht_oper && (eht_oper->params & IEEE80211_EHT_OPER_INFO_PRESENT)) { struct cfg80211_chan_def eht_chandef = *chandef; - ieee80211_chandef_eht_oper(eht_oper, + ieee80211_chandef_eht_oper((const void *)eht_oper->optional, eht_chandef.width == NL80211_CHAN_WIDTH_160, false, &eht_chandef); @@ -830,7 +831,6 @@ static void ieee80211_assoc_add_rates(struct sk_buff *skb, struct ieee80211_supported_band *sband, struct ieee80211_mgd_assoc_data *assoc_data) { - unsigned int shift = ieee80211_chanwidth_get_shift(width); unsigned int rates_len, supp_rates_len; u32 rates = 0; int i, count; @@ -869,8 +869,7 @@ static void ieee80211_assoc_add_rates(struct sk_buff *skb, count = 0; for (i = 0; i < sband->n_bitrates; i++) { if (BIT(i) & rates) { - int rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, - 5 * (1 << shift)); + int rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, 5); *pos++ = (u8)rate; if (++count == 8) break; @@ -886,8 +885,7 @@ static void ieee80211_assoc_add_rates(struct sk_buff *skb, if (BIT(i) & rates) { int rate; - rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, - 5 * (1 << shift)); + rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, 5); *pos++ = (u8)rate; } } @@ -1401,7 +1399,7 @@ static int ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) assoc_data->ie, assoc_data->ie_len); - sdata_assert_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); size = local->hw.extra_tx_headroom + sizeof(*mgmt) + /* bit too much but doesn't matter */ @@ -1689,15 +1687,13 @@ static void ieee80211_chswitch_work(struct wiphy *wiphy, if (!ieee80211_sdata_running(sdata)) return; - sdata_lock(sdata); - mutex_lock(&local->mtx); - mutex_lock(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); if (!ifmgd->associated) - goto out; + return; if (!link->conf->csa_active) - goto out; + return; /* * using reservation isn't immediate as it may be deferred until later @@ -1713,7 +1709,7 @@ static void ieee80211_chswitch_work(struct wiphy *wiphy, * reservations */ if (link->reserved_ready) - goto out; + return; ret = ieee80211_link_use_reserved_context(link); if (ret) { @@ -1722,10 +1718,8 @@ static void ieee80211_chswitch_work(struct wiphy *wiphy, ret); wiphy_work_queue(sdata->local->hw.wiphy, &ifmgd->csa_connection_drop_work); - goto out; } - - goto out; + return; } if (!cfg80211_chandef_identical(&link->conf->chandef, @@ -1734,18 +1728,13 @@ static void ieee80211_chswitch_work(struct wiphy *wiphy, "failed to finalize channel switch, disconnecting\n"); wiphy_work_queue(sdata->local->hw.wiphy, &ifmgd->csa_connection_drop_work); - goto out; + return; } link->u.mgd.csa_waiting_bcn = true; ieee80211_sta_reset_beacon_monitor(sdata); ieee80211_sta_reset_conn_monitor(sdata); - -out: - mutex_unlock(&local->chanctx_mtx); - mutex_unlock(&local->mtx); - sdata_unlock(sdata); } static void ieee80211_chswitch_post_beacon(struct ieee80211_link_data *link) @@ -1755,7 +1744,7 @@ static void ieee80211_chswitch_post_beacon(struct ieee80211_link_data *link) struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; int ret; - sdata_assert_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); WARN_ON(!link->conf->csa_active); @@ -1773,7 +1762,7 @@ static void ieee80211_chswitch_post_beacon(struct ieee80211_link_data *link) */ link->u.mgd.beacon_crc_valid = false; - ret = drv_post_channel_switch(sdata); + ret = drv_post_channel_switch(link); if (ret) { sdata_info(sdata, "driver post channel switch failed, disconnecting\n"); @@ -1782,28 +1771,38 @@ static void ieee80211_chswitch_post_beacon(struct ieee80211_link_data *link) return; } - cfg80211_ch_switch_notify(sdata->dev, &link->reserved_chandef, 0, 0); + cfg80211_ch_switch_notify(sdata->dev, &link->reserved_chandef, + link->link_id, 0); } -void ieee80211_chswitch_done(struct ieee80211_vif *vif, bool success) +void ieee80211_chswitch_done(struct ieee80211_vif *vif, bool success, + unsigned int link_id) { struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); - struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - if (WARN_ON(ieee80211_vif_is_mld(&sdata->vif))) - success = false; + trace_api_chswitch_done(sdata, success, link_id); + + rcu_read_lock(); - trace_api_chswitch_done(sdata, success); if (!success) { sdata_info(sdata, "driver channel switch failed, disconnecting\n"); wiphy_work_queue(sdata->local->hw.wiphy, - &ifmgd->csa_connection_drop_work); + &sdata->u.mgd.csa_connection_drop_work); } else { + struct ieee80211_link_data *link = + rcu_dereference(sdata->link[link_id]); + + if (WARN_ON(!link)) { + rcu_read_unlock(); + return; + } + wiphy_delayed_work_queue(sdata->local->hw.wiphy, - &sdata->deflink.u.mgd.chswitch_work, - 0); + &link->u.mgd.chswitch_work, 0); } + + rcu_read_unlock(); } EXPORT_SYMBOL(ieee80211_chswitch_done); @@ -1813,14 +1812,12 @@ ieee80211_sta_abort_chanswitch(struct ieee80211_link_data *link) struct ieee80211_sub_if_data *sdata = link->sdata; struct ieee80211_local *local = sdata->local; + lockdep_assert_wiphy(local->hw.wiphy); + if (!local->ops->abort_channel_switch) return; - mutex_lock(&local->mtx); - - mutex_lock(&local->chanctx_mtx); ieee80211_link_unreserve_chanctx(link); - mutex_unlock(&local->chanctx_mtx); if (link->csa_block_tx) ieee80211_wake_vif_queues(local, sdata, @@ -1829,8 +1826,6 @@ ieee80211_sta_abort_chanswitch(struct ieee80211_link_data *link) link->csa_block_tx = false; link->conf->csa_active = false; - mutex_unlock(&local->mtx); - drv_abort_channel_switch(sdata); } @@ -1853,7 +1848,7 @@ ieee80211_sta_process_chanswitch(struct ieee80211_link_data *link, unsigned long timeout; int res; - sdata_assert_lock(sdata); + lockdep_assert_wiphy(local->hw.wiphy); if (!cbss) return; @@ -1875,7 +1870,7 @@ ieee80211_sta_process_chanswitch(struct ieee80211_link_data *link, } if (res < 0) - goto lock_and_drop_connection; + goto drop_connection; if (beacon && link->conf->csa_active && !link->u.mgd.csa_waiting_bcn) { @@ -1897,7 +1892,7 @@ ieee80211_sta_process_chanswitch(struct ieee80211_link_data *link, csa_ie.chandef.chan->center_freq, csa_ie.chandef.width, csa_ie.chandef.center_freq1, csa_ie.chandef.center_freq2); - goto lock_and_drop_connection; + goto drop_connection; } if (!cfg80211_chandef_usable(local->hw.wiphy, &csa_ie.chandef, @@ -1912,7 +1907,7 @@ ieee80211_sta_process_chanswitch(struct ieee80211_link_data *link, csa_ie.chandef.width, csa_ie.chandef.center_freq1, csa_ie.chandef.freq1_offset, csa_ie.chandef.center_freq2); - goto lock_and_drop_connection; + goto drop_connection; } if (cfg80211_chandef_identical(&csa_ie.chandef, @@ -1935,10 +1930,8 @@ ieee80211_sta_process_chanswitch(struct ieee80211_link_data *link, */ ieee80211_teardown_tdls_peers(sdata); - mutex_lock(&local->mtx); - mutex_lock(&local->chanctx_mtx); conf = rcu_dereference_protected(link->conf->chanctx_conf, - lockdep_is_held(&local->chanctx_mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); if (!conf) { sdata_info(sdata, "no channel context assigned to vif?, disconnecting\n"); @@ -1968,7 +1961,6 @@ ieee80211_sta_process_chanswitch(struct ieee80211_link_data *link, res); goto drop_connection; } - mutex_unlock(&local->chanctx_mtx); link->conf->csa_active = true; link->csa_chandef = csa_ie.chandef; @@ -1979,7 +1971,6 @@ ieee80211_sta_process_chanswitch(struct ieee80211_link_data *link, if (link->csa_block_tx) ieee80211_stop_vif_queues(local, sdata, IEEE80211_QUEUE_STOP_REASON_CSA); - mutex_unlock(&local->mtx); cfg80211_ch_switch_started_notify(sdata->dev, &csa_ie.chandef, link->link_id, csa_ie.count, @@ -1998,9 +1989,6 @@ ieee80211_sta_process_chanswitch(struct ieee80211_link_data *link, &link->u.mgd.chswitch_work, timeout); return; - lock_and_drop_connection: - mutex_lock(&local->mtx); - mutex_lock(&local->chanctx_mtx); drop_connection: /* * This is just so that the disconnect flow will know that @@ -2014,8 +2002,6 @@ ieee80211_sta_process_chanswitch(struct ieee80211_link_data *link, wiphy_work_queue(sdata->local->hw.wiphy, &ifmgd->csa_connection_drop_work); - mutex_unlock(&local->chanctx_mtx); - mutex_unlock(&local->mtx); } static bool @@ -2211,7 +2197,8 @@ static void ieee80211_change_ps(struct ieee80211_local *local) conf->flags &= ~IEEE80211_CONF_PS; ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); del_timer_sync(&local->dynamic_ps_timer); - cancel_work_sync(&local->dynamic_ps_enable_work); + wiphy_work_cancel(local->hw.wiphy, + &local->dynamic_ps_enable_work); } } @@ -2308,7 +2295,8 @@ void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata) } } -void ieee80211_dynamic_ps_disable_work(struct work_struct *work) +void ieee80211_dynamic_ps_disable_work(struct wiphy *wiphy, + struct wiphy_work *work) { struct ieee80211_local *local = container_of(work, struct ieee80211_local, @@ -2325,7 +2313,8 @@ void ieee80211_dynamic_ps_disable_work(struct work_struct *work) false); } -void ieee80211_dynamic_ps_enable_work(struct work_struct *work) +void ieee80211_dynamic_ps_enable_work(struct wiphy *wiphy, + struct wiphy_work *work) { struct ieee80211_local *local = container_of(work, struct ieee80211_local, @@ -2398,26 +2387,25 @@ void ieee80211_dynamic_ps_timer(struct timer_list *t) { struct ieee80211_local *local = from_timer(local, t, dynamic_ps_timer); - ieee80211_queue_work(&local->hw, &local->dynamic_ps_enable_work); + wiphy_work_queue(local->hw.wiphy, &local->dynamic_ps_enable_work); } -void ieee80211_dfs_cac_timer_work(struct work_struct *work) +void ieee80211_dfs_cac_timer_work(struct wiphy *wiphy, struct wiphy_work *work) { - struct delayed_work *delayed_work = to_delayed_work(work); struct ieee80211_link_data *link = - container_of(delayed_work, struct ieee80211_link_data, - dfs_cac_timer_work); + container_of(work, struct ieee80211_link_data, + dfs_cac_timer_work.work); struct cfg80211_chan_def chandef = link->conf->chandef; struct ieee80211_sub_if_data *sdata = link->sdata; - mutex_lock(&sdata->local->mtx); + lockdep_assert_wiphy(sdata->local->hw.wiphy); + if (sdata->wdev.cac_started) { ieee80211_link_release_channel(link); cfg80211_cac_event(sdata->dev, &chandef, NL80211_RADAR_CAC_FINISHED, GFP_KERNEL); } - mutex_unlock(&sdata->local->mtx); } static bool @@ -2487,8 +2475,10 @@ __ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata) ac); tx_tspec->action = TX_TSPEC_ACTION_NONE; ret = true; - schedule_delayed_work(&ifmgd->tx_tspec_wk, - tx_tspec->time_slice_start + HZ - now + 1); + wiphy_delayed_work_queue(local->hw.wiphy, + &ifmgd->tx_tspec_wk, + tx_tspec->time_slice_start + + HZ - now + 1); break; case TX_TSPEC_ACTION_NONE: /* nothing now */ @@ -2506,7 +2496,8 @@ void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata) BSS_CHANGED_QOS); } -static void ieee80211_sta_handle_tspec_ac_params_wk(struct work_struct *work) +static void ieee80211_sta_handle_tspec_ac_params_wk(struct wiphy *wiphy, + struct wiphy_work *work) { struct ieee80211_sub_if_data *sdata; @@ -2681,7 +2672,7 @@ ieee80211_sta_wmm_params(struct ieee80211_local *local, static void __ieee80211_stop_poll(struct ieee80211_sub_if_data *sdata) { - lockdep_assert_held(&sdata->local->mtx); + lockdep_assert_wiphy(sdata->local->hw.wiphy); sdata->u.mgd.flags &= ~IEEE80211_STA_CONNECTION_POLL; ieee80211_run_deferred_scan(sdata->local); @@ -2689,9 +2680,9 @@ static void __ieee80211_stop_poll(struct ieee80211_sub_if_data *sdata) static void ieee80211_stop_poll(struct ieee80211_sub_if_data *sdata) { - mutex_lock(&sdata->local->mtx); + lockdep_assert_wiphy(sdata->local->hw.wiphy); + __ieee80211_stop_poll(sdata); - mutex_unlock(&sdata->local->mtx); } static u64 ieee80211_handle_bss_capability(struct ieee80211_link_data *link, @@ -2809,6 +2800,8 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, u64 vif_changed = BSS_CHANGED_ASSOC; unsigned int link_id; + lockdep_assert_wiphy(local->hw.wiphy); + sdata->u.mgd.associated = true; for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { @@ -2870,9 +2863,7 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, vif_changed | changed[0]); } - mutex_lock(&local->iflist_mtx); ieee80211_recalc_ps(local); - mutex_unlock(&local->iflist_mtx); /* leave this here to not change ordering in non-MLO cases */ if (!ieee80211_vif_is_mld(&sdata->vif)) @@ -2894,7 +2885,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, .subtype = stype, }; - sdata_assert_lock(sdata); + lockdep_assert_wiphy(local->hw.wiphy); if (WARN_ON_ONCE(tx && !frame_buf)) return; @@ -3003,7 +2994,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, sdata->deflink.ap_power_level = IEEE80211_UNSET_POWER_LEVEL; del_timer_sync(&local->dynamic_ps_timer); - cancel_work_sync(&local->dynamic_ps_enable_work); + wiphy_work_cancel(local->hw.wiphy, &local->dynamic_ps_enable_work); /* Disable ARP filtering */ if (sdata->vif.cfg.arp_addr_cnt) @@ -3035,7 +3026,6 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, ifmgd->flags = 0; sdata->deflink.u.mgd.conn_flags = 0; - mutex_lock(&local->mtx); for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { struct ieee80211_link_data *link; @@ -3054,17 +3044,19 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, IEEE80211_QUEUE_STOP_REASON_CSA); sdata->deflink.csa_block_tx = false; } - mutex_unlock(&local->mtx); /* existing TX TSPEC sessions no longer exist */ memset(ifmgd->tx_tspec, 0, sizeof(ifmgd->tx_tspec)); - cancel_delayed_work_sync(&ifmgd->tx_tspec_wk); + wiphy_delayed_work_cancel(local->hw.wiphy, &ifmgd->tx_tspec_wk); sdata->vif.bss_conf.pwr_reduction = 0; sdata->vif.bss_conf.tx_pwr_env_num = 0; memset(sdata->vif.bss_conf.tx_pwr_env, 0, sizeof(sdata->vif.bss_conf.tx_pwr_env)); + memset(&sdata->u.mgd.ttlm_info, 0, + sizeof(sdata->u.mgd.ttlm_info)); + wiphy_delayed_work_cancel(sdata->local->hw.wiphy, &ifmgd->ttlm_work); ieee80211_vif_set_links(sdata, 0, 0); } @@ -3073,18 +3065,17 @@ static void ieee80211_reset_ap_probe(struct ieee80211_sub_if_data *sdata) struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; struct ieee80211_local *local = sdata->local; - mutex_lock(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); + if (!(ifmgd->flags & IEEE80211_STA_CONNECTION_POLL)) - goto out; + return; __ieee80211_stop_poll(sdata); - mutex_lock(&local->iflist_mtx); ieee80211_recalc_ps(local); - mutex_unlock(&local->iflist_mtx); if (ieee80211_hw_check(&sdata->local->hw, CONNECTION_MONITOR)) - goto out; + return; /* * We've received a probe response, but are not sure whether @@ -3096,8 +3087,6 @@ static void ieee80211_reset_ap_probe(struct ieee80211_sub_if_data *sdata) mod_timer(&ifmgd->conn_mon_timer, round_jiffies_up(jiffies + IEEE80211_CONNECTION_IDLE_TIME)); -out: - mutex_unlock(&local->mtx); } static void ieee80211_sta_tx_wmm_ac_notify(struct ieee80211_sub_if_data *sdata, @@ -3126,7 +3115,8 @@ static void ieee80211_sta_tx_wmm_ac_notify(struct ieee80211_sub_if_data *sdata, if (tx_tspec->downgraded) { tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; - schedule_delayed_work(&ifmgd->tx_tspec_wk, 0); + wiphy_delayed_work_queue(sdata->local->hw.wiphy, + &ifmgd->tx_tspec_wk, 0); } } @@ -3138,7 +3128,8 @@ static void ieee80211_sta_tx_wmm_ac_notify(struct ieee80211_sub_if_data *sdata, if (tx_tspec->consumed_tx_time >= tx_tspec->admitted_time) { tx_tspec->downgraded = true; tx_tspec->action = TX_TSPEC_ACTION_DOWNGRADE; - schedule_delayed_work(&ifmgd->tx_tspec_wk, 0); + wiphy_delayed_work_queue(sdata->local->hw.wiphy, + &ifmgd->tx_tspec_wk, 0); } } @@ -3179,6 +3170,8 @@ static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata) u8 unicast_limit = max(1, max_probe_tries - 3); struct sta_info *sta; + lockdep_assert_wiphy(sdata->local->hw.wiphy); + if (WARN_ON(ieee80211_vif_is_mld(&sdata->vif))) return; @@ -3200,11 +3193,9 @@ static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata) ifmgd->probe_send_count++; if (dst) { - mutex_lock(&sdata->local->sta_mtx); sta = sta_info_get(sdata, dst); if (!WARN_ON(!sta)) ieee80211_check_fast_rx(sta); - mutex_unlock(&sdata->local->sta_mtx); } if (ieee80211_hw_check(&sdata->local->hw, REPORTS_TX_ACK_STATUS)) { @@ -3227,29 +3218,24 @@ static void ieee80211_mgd_probe_ap(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; bool already = false; + lockdep_assert_wiphy(sdata->local->hw.wiphy); + if (WARN_ON_ONCE(ieee80211_vif_is_mld(&sdata->vif))) return; if (!ieee80211_sdata_running(sdata)) return; - sdata_lock(sdata); - if (!ifmgd->associated) - goto out; - - mutex_lock(&sdata->local->mtx); + return; - if (sdata->local->tmp_channel || sdata->local->scanning) { - mutex_unlock(&sdata->local->mtx); - goto out; - } + if (sdata->local->tmp_channel || sdata->local->scanning) + return; if (sdata->local->suspending) { /* reschedule after resume */ - mutex_unlock(&sdata->local->mtx); ieee80211_reset_ap_probe(sdata); - goto out; + return; } if (beacon) { @@ -3276,19 +3262,13 @@ static void ieee80211_mgd_probe_ap(struct ieee80211_sub_if_data *sdata, ifmgd->flags |= IEEE80211_STA_CONNECTION_POLL; - mutex_unlock(&sdata->local->mtx); - if (already) - goto out; + return; - mutex_lock(&sdata->local->iflist_mtx); ieee80211_recalc_ps(sdata->local); - mutex_unlock(&sdata->local->iflist_mtx); ifmgd->probe_send_count = 0; ieee80211_mgd_probe_ap_send(sdata); - out: - sdata_unlock(sdata); } struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw, @@ -3301,12 +3281,12 @@ struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw, const struct element *ssid; int ssid_len; + lockdep_assert_wiphy(sdata->local->hw.wiphy); + if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION || ieee80211_vif_is_mld(&sdata->vif))) return NULL; - sdata_assert_lock(sdata); - if (ifmgd->associated) cbss = sdata->deflink.u.mgd.bss; else if (ifmgd->auth_data) @@ -3353,13 +3333,15 @@ static void ieee80211_report_disconnect(struct ieee80211_sub_if_data *sdata, drv_event_callback(sdata->local, sdata, &event); } -static void ___ieee80211_disconnect(struct ieee80211_sub_if_data *sdata) +static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata) { struct ieee80211_local *local = sdata->local; struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; bool tx; + lockdep_assert_wiphy(local->hw.wiphy); + if (!ifmgd->associated) return; @@ -3395,7 +3377,6 @@ static void ___ieee80211_disconnect(struct ieee80211_sub_if_data *sdata) WLAN_REASON_DEAUTH_LEAVING : WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, tx, frame_buf); - mutex_lock(&local->mtx); /* the other links will be destroyed */ sdata->vif.bss_conf.csa_active = false; sdata->deflink.u.mgd.csa_waiting_bcn = false; @@ -3404,7 +3385,6 @@ static void ___ieee80211_disconnect(struct ieee80211_sub_if_data *sdata) IEEE80211_QUEUE_STOP_REASON_CSA); sdata->deflink.csa_block_tx = false; } - mutex_unlock(&local->mtx); ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), tx, WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, @@ -3412,13 +3392,6 @@ static void ___ieee80211_disconnect(struct ieee80211_sub_if_data *sdata) ifmgd->reconnect = false; } -static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata) -{ - sdata_lock(sdata); - ___ieee80211_disconnect(sdata); - sdata_unlock(sdata); -} - static void ieee80211_beacon_connection_loss_work(struct wiphy *wiphy, struct wiphy_work *work) { @@ -3500,7 +3473,7 @@ static void ieee80211_destroy_auth_data(struct ieee80211_sub_if_data *sdata, { struct ieee80211_mgd_auth_data *auth_data = sdata->u.mgd.auth_data; - sdata_assert_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); if (!assoc) { /* @@ -3518,10 +3491,8 @@ static void ieee80211_destroy_auth_data(struct ieee80211_sub_if_data *sdata, BSS_CHANGED_BSSID); sdata->u.mgd.flags = 0; - mutex_lock(&sdata->local->mtx); ieee80211_link_release_channel(&sdata->deflink); ieee80211_vif_set_links(sdata, 0, 0); - mutex_unlock(&sdata->local->mtx); } cfg80211_put_bss(sdata->local->hw.wiphy, auth_data->bss); @@ -3541,7 +3512,7 @@ static void ieee80211_destroy_assoc_data(struct ieee80211_sub_if_data *sdata, { struct ieee80211_mgd_assoc_data *assoc_data = sdata->u.mgd.assoc_data; - sdata_assert_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); if (status != ASSOC_SUCCESS) { /* @@ -3577,10 +3548,8 @@ static void ieee80211_destroy_assoc_data(struct ieee80211_sub_if_data *sdata, cfg80211_assoc_failure(sdata->dev, &data); } - mutex_lock(&sdata->local->mtx); ieee80211_link_release_channel(&sdata->deflink); ieee80211_vif_set_links(sdata, 0, 0); - mutex_unlock(&sdata->local->mtx); } kfree(assoc_data); @@ -3622,7 +3591,8 @@ static bool ieee80211_mark_sta_auth(struct ieee80211_sub_if_data *sdata) struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; const u8 *ap_addr = ifmgd->auth_data->ap_addr; struct sta_info *sta; - bool result = true; + + lockdep_assert_wiphy(sdata->local->hw.wiphy); sdata_info(sdata, "authenticated\n"); ifmgd->auth_data->done = true; @@ -3631,22 +3601,17 @@ static bool ieee80211_mark_sta_auth(struct ieee80211_sub_if_data *sdata) run_again(sdata, ifmgd->auth_data->timeout); /* move station state to auth */ - mutex_lock(&sdata->local->sta_mtx); sta = sta_info_get(sdata, ap_addr); if (!sta) { WARN_ONCE(1, "%s: STA %pM not found", sdata->name, ap_addr); - result = false; - goto out; + return false; } if (sta_info_move_state(sta, IEEE80211_STA_AUTH)) { sdata_info(sdata, "failed moving %pM to auth\n", ap_addr); - result = false; - goto out; + return false; } -out: - mutex_unlock(&sdata->local->sta_mtx); - return result; + return true; } static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata, @@ -3662,7 +3627,7 @@ static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata, .subtype = IEEE80211_STYPE_AUTH, }; - sdata_assert_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); if (len < 24 + 6) return; @@ -3820,7 +3785,7 @@ static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; u16 reason_code = le16_to_cpu(mgmt->u.deauth.reason_code); - sdata_assert_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); if (len < 24 + 2) return; @@ -3864,7 +3829,7 @@ static void ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; u16 reason_code; - sdata_assert_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); if (len < 24 + 2) return; @@ -3894,8 +3859,7 @@ static void ieee80211_get_rates(struct ieee80211_supported_band *sband, u8 *supp_rates, unsigned int supp_rates_len, u32 *rates, u32 *basic_rates, bool *have_higher_than_11mbit, - int *min_rate, int *min_rate_index, - int shift) + int *min_rate, int *min_rate_index) { int i, j; @@ -3903,7 +3867,7 @@ static void ieee80211_get_rates(struct ieee80211_supported_band *sband, int rate = supp_rates[i] & 0x7f; bool is_basic = !!(supp_rates[i] & 0x80); - if ((rate * 5 * (1 << shift)) > 110) + if ((rate * 5) > 110) *have_higher_than_11mbit = true; /* @@ -3927,7 +3891,7 @@ static void ieee80211_get_rates(struct ieee80211_supported_band *sband, br = &sband->bitrates[j]; - brate = DIV_ROUND_UP(br->bitrate, (1 << shift) * 5); + brate = DIV_ROUND_UP(br->bitrate, 5); if (brate == rate) { *rates |= BIT(j); if (is_basic) @@ -4394,8 +4358,6 @@ static int ieee80211_mgd_setup_link_sta(struct ieee80211_link_data *link, u32 rates = 0, basic_rates = 0; bool have_higher_than_11mbit = false; int min_rate = INT_MAX, min_rate_index = -1; - /* this is clearly wrong for MLO but we'll just remove it later */ - int shift = ieee80211_vif_get_shift(&sdata->vif); struct ieee80211_supported_band *sband; memcpy(link_sta->addr, cbss->bssid, ETH_ALEN); @@ -4411,7 +4373,7 @@ static int ieee80211_mgd_setup_link_sta(struct ieee80211_link_data *link, ieee80211_get_rates(sband, bss->supp_rates, bss->supp_rates_len, &rates, &basic_rates, &have_higher_than_11mbit, - &min_rate, &min_rate_index, shift); + &min_rate, &min_rate_index); /* * This used to be a workaround for basic rates missing @@ -4817,6 +4779,7 @@ ieee80211_verify_sta_eht_mcs_support(struct ieee80211_sub_if_data *sdata, static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, struct ieee80211_link_data *link, struct cfg80211_bss *cbss, + bool mlo, ieee80211_conn_flags_t *conn_flags) { struct ieee80211_local *local = sdata->local; @@ -4830,6 +4793,7 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, struct cfg80211_chan_def chandef; bool is_6ghz = cbss->channel->band == NL80211_BAND_6GHZ; bool is_5ghz = cbss->channel->band == NL80211_BAND_5GHZ; + bool supports_mlo = false; struct ieee80211_bss *bss = (void *)cbss->priv; struct ieee80211_elems_parse_params parse_params = { .link_id = -1, @@ -4841,6 +4805,8 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, u32 i; bool have_80mhz; + lockdep_assert_wiphy(local->hw.wiphy); + rcu_read_lock(); ies = rcu_dereference(cbss->ies); @@ -4981,6 +4947,8 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, ieee80211_mle_type_ok(eht_ml_elem->data + 1, IEEE80211_ML_CONTROL_TYPE_BASIC, eht_ml_elem->datalen - 1)) { + supports_mlo = true; + sdata->vif.cfg.eml_cap = ieee80211_mle_get_eml_cap(eht_ml_elem->data + 1); sdata->vif.cfg.eml_med_sync_delay = @@ -5036,13 +5004,17 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, return -EINVAL; } + if (mlo && !supports_mlo) { + sdata_info(sdata, "Rejecting MLO as it is not supported by AP\n"); + return -EINVAL; + } + if (!link) return 0; /* will change later if needed */ link->smps_mode = IEEE80211_SMPS_OFF; - mutex_lock(&local->mtx); /* * If this fails (possibly due to channel context sharing * on incompatible channels, e.g. 80+80 and 160 sharing the @@ -5063,7 +5035,6 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, IEEE80211_CHANCTX_SHARED); } out: - mutex_unlock(&local->mtx); return ret; } @@ -5115,7 +5086,7 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, u16 valid_links = 0, dormant_links = 0; int err; - mutex_lock(&sdata->local->sta_mtx); + lockdep_assert_wiphy(sdata->local->hw.wiphy); /* * station info was already allocated and inserted before * the association and should be available to us @@ -5164,7 +5135,7 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, " (assoc)" : ""); link_sta = rcu_dereference_protected(sta->link[link_id], - lockdep_is_held(&local->sta_mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); if (WARN_ON(!link_sta)) goto out_err; @@ -5187,7 +5158,7 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, link->conf->dtim_period = link->u.mgd.dtim_period ?: 1; if (link_id != assoc_data->assoc_link_id) { - err = ieee80211_prep_channel(sdata, link, cbss, + err = ieee80211_prep_channel(sdata, link, cbss, true, &link->u.mgd.conn_flags); if (err) { link_info(link, "prep_channel failed\n"); @@ -5251,8 +5222,6 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, if (sdata->wdev.use_4addr) drv_sta_set_4addr(local, sdata, &sta->sta, true); - mutex_unlock(&sdata->local->sta_mtx); - ieee80211_set_associated(sdata, assoc_data, changed); /* @@ -5272,7 +5241,6 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, return true; out_err: eth_zero_addr(sdata->vif.cfg.ap_addr); - mutex_unlock(&sdata->local->sta_mtx); return false; } @@ -5304,7 +5272,7 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, u8 ap_mld_addr[ETH_ALEN] __aligned(2); unsigned int link_id; - sdata_assert_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); if (!assoc_data) return; @@ -5505,7 +5473,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_link_data *link, struct ieee80211_bss *bss; struct ieee80211_channel *channel; - sdata_assert_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); channel = ieee80211_get_channel_khz(local->hw.wiphy, ieee80211_rx_status_to_khz(rx_status)); @@ -5532,7 +5500,7 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_link_data *link, ifmgd = &sdata->u.mgd; - sdata_assert_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); /* * According to Draft P802.11ax D6.0 clause 26.17.2.3.2: @@ -5743,21 +5711,16 @@ static void ieee80211_ml_reconf_work(struct wiphy *wiphy, u16 new_valid_links, new_active_links, new_dormant_links; int ret; - sdata_lock(sdata); - if (!sdata->u.mgd.removed_links) { - sdata_unlock(sdata); + if (!sdata->u.mgd.removed_links) return; - } sdata_info(sdata, "MLO Reconfiguration: work: valid=0x%x, removed=0x%x\n", sdata->vif.valid_links, sdata->u.mgd.removed_links); new_valid_links = sdata->vif.valid_links & ~sdata->u.mgd.removed_links; - if (new_valid_links == sdata->vif.valid_links) { - sdata_unlock(sdata); + if (new_valid_links == sdata->vif.valid_links) return; - } if (!new_valid_links || !(new_valid_links & ~sdata->vif.dormant_links)) { @@ -5773,8 +5736,7 @@ static void ieee80211_ml_reconf_work(struct wiphy *wiphy, BIT(ffs(new_valid_links & ~sdata->vif.dormant_links) - 1); - ret = __ieee80211_set_active_links(&sdata->vif, - new_active_links); + ret = ieee80211_set_active_links(&sdata->vif, new_active_links); if (ret) { sdata_info(sdata, "Failed setting active links\n"); @@ -5789,15 +5751,15 @@ static void ieee80211_ml_reconf_work(struct wiphy *wiphy, if (ret) sdata_info(sdata, "Failed setting valid links\n"); + ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_MLD_VALID_LINKS); + out: if (!ret) cfg80211_links_removed(sdata->dev, sdata->u.mgd.removed_links); else - ___ieee80211_disconnect(sdata); + __ieee80211_disconnect(sdata); sdata->u.mgd.removed_links = 0; - - sdata_unlock(sdata); } static void ieee80211_ml_reconfiguration(struct ieee80211_sub_if_data *sdata, @@ -5897,6 +5859,194 @@ static void ieee80211_ml_reconfiguration(struct ieee80211_sub_if_data *sdata, TU_TO_JIFFIES(delay)); } +static void ieee80211_tid_to_link_map_work(struct wiphy *wiphy, + struct wiphy_work *work) +{ + u16 new_active_links, new_dormant_links; + struct ieee80211_sub_if_data *sdata = + container_of(work, struct ieee80211_sub_if_data, + u.mgd.ttlm_work.work); + int ret; + + new_active_links = sdata->u.mgd.ttlm_info.map & + sdata->vif.valid_links; + new_dormant_links = ~sdata->u.mgd.ttlm_info.map & + sdata->vif.valid_links; + if (!new_active_links) { + ieee80211_disconnect(&sdata->vif, false); + return; + } + + ieee80211_vif_set_links(sdata, sdata->vif.valid_links, 0); + new_active_links = BIT(ffs(new_active_links) - 1); + ieee80211_set_active_links(&sdata->vif, new_active_links); + + ret = ieee80211_vif_set_links(sdata, sdata->vif.valid_links, + new_dormant_links); + + sdata->u.mgd.ttlm_info.active = true; + sdata->u.mgd.ttlm_info.switch_time = 0; + + if (!ret) + ieee80211_vif_cfg_change_notify(sdata, + BSS_CHANGED_MLD_VALID_LINKS); +} + +static u16 ieee80211_get_ttlm(u8 bm_size, u8 *data) +{ + if (bm_size == 1) + return *data; + else + return get_unaligned_le16(data); +} + +static int +ieee80211_parse_adv_t2l(struct ieee80211_sub_if_data *sdata, + const struct ieee80211_ttlm_elem *ttlm, + struct ieee80211_adv_ttlm_info *ttlm_info) +{ + /* The element size was already validated in + * ieee80211_tid_to_link_map_size_ok() + */ + u8 control, link_map_presence, map_size, tid; + u8 *pos; + + memset(ttlm_info, 0, sizeof(*ttlm_info)); + pos = (void *)ttlm->optional; + control = ttlm->control; + + if ((control & IEEE80211_TTLM_CONTROL_DEF_LINK_MAP) || + !(control & IEEE80211_TTLM_CONTROL_SWITCH_TIME_PRESENT)) + return 0; + + if ((control & IEEE80211_TTLM_CONTROL_DIRECTION) != + IEEE80211_TTLM_DIRECTION_BOTH) { + sdata_info(sdata, "Invalid advertised T2L map direction\n"); + return -EINVAL; + } + + link_map_presence = *pos; + pos++; + + ttlm_info->switch_time = get_unaligned_le16(pos); + pos += 2; + + if (control & IEEE80211_TTLM_CONTROL_EXPECTED_DUR_PRESENT) { + ttlm_info->duration = pos[0] | pos[1] << 8 | pos[2] << 16; + pos += 3; + } + + if (control & IEEE80211_TTLM_CONTROL_LINK_MAP_SIZE) + map_size = 1; + else + map_size = 2; + + /* According to Draft P802.11be_D3.0 clause 35.3.7.1.7, an AP MLD shall + * not advertise a TID-to-link mapping that does not map all TIDs to the + * same link set, reject frame if not all links have mapping + */ + if (link_map_presence != 0xff) { + sdata_info(sdata, + "Invalid advertised T2L mapping presence indicator\n"); + return -EINVAL; + } + + ttlm_info->map = ieee80211_get_ttlm(map_size, pos); + if (!ttlm_info->map) { + sdata_info(sdata, + "Invalid advertised T2L map for TID 0\n"); + return -EINVAL; + } + + pos += map_size; + + for (tid = 1; tid < 8; tid++) { + u16 map = ieee80211_get_ttlm(map_size, pos); + + if (map != ttlm_info->map) { + sdata_info(sdata, "Invalid advertised T2L map for tid %d\n", + tid); + return -EINVAL; + } + + pos += map_size; + } + return 0; +} + +static void ieee80211_process_adv_ttlm(struct ieee80211_sub_if_data *sdata, + struct ieee802_11_elems *elems, + u64 beacon_ts) +{ + u8 i; + int ret; + + if (!ieee80211_vif_is_mld(&sdata->vif)) + return; + + if (!elems->ttlm_num) { + if (sdata->u.mgd.ttlm_info.switch_time) { + /* if a planned TID-to-link mapping was cancelled - + * abort it + */ + wiphy_delayed_work_cancel(sdata->local->hw.wiphy, + &sdata->u.mgd.ttlm_work); + } else if (sdata->u.mgd.ttlm_info.active) { + /* if no TID-to-link element, set to default mapping in + * which all TIDs are mapped to all setup links + */ + ret = ieee80211_vif_set_links(sdata, + sdata->vif.valid_links, + 0); + if (ret) { + sdata_info(sdata, "Failed setting valid/dormant links\n"); + return; + } + ieee80211_vif_cfg_change_notify(sdata, + BSS_CHANGED_MLD_VALID_LINKS); + } + memset(&sdata->u.mgd.ttlm_info, 0, + sizeof(sdata->u.mgd.ttlm_info)); + return; + } + + for (i = 0; i < elems->ttlm_num; i++) { + struct ieee80211_adv_ttlm_info ttlm_info; + u32 res; + + res = ieee80211_parse_adv_t2l(sdata, elems->ttlm[i], + &ttlm_info); + + if (res) { + __ieee80211_disconnect(sdata); + return; + } + + if (ttlm_info.switch_time) { + u32 st_us, delay = 0; + u32 ts_l26 = beacon_ts & GENMASK(25, 0); + + /* The t2l map switch time is indicated with a partial + * TSF value, convert it to TSF and calc the delay + * to the start time. + */ + st_us = ieee80211_tu_to_usec(ttlm_info.switch_time); + if (st_us > ts_l26) + delay = st_us - ts_l26; + else + continue; + + sdata->u.mgd.ttlm_info = ttlm_info; + wiphy_delayed_work_cancel(sdata->local->hw.wiphy, + &sdata->u.mgd.ttlm_work); + wiphy_delayed_work_queue(sdata->local->hw.wiphy, + &sdata->u.mgd.ttlm_work, + usecs_to_jiffies(delay)); + return; + } + } +} + static void ieee80211_rx_mgmt_beacon(struct ieee80211_link_data *link, struct ieee80211_hdr *hdr, size_t len, struct ieee80211_rx_status *rx_status) @@ -5925,7 +6075,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_link_data *link, .from_ap = true, }; - sdata_assert_lock(sdata); + lockdep_assert_wiphy(local->hw.wiphy); /* Process beacon from the current BSS */ bssid = ieee80211_get_bssid(hdr, len, sdata->vif.type); @@ -6141,9 +6291,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_link_data *link, changed |= BSS_CHANGED_BEACON_INFO; link->u.mgd.have_beacon = true; - mutex_lock(&local->iflist_mtx); ieee80211_recalc_ps(local); - mutex_unlock(&local->iflist_mtx); ieee80211_recalc_ps_vif(sdata); } @@ -6160,16 +6308,13 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_link_data *link, le16_to_cpu(mgmt->u.beacon.capab_info), erp_valid, erp_value); - mutex_lock(&local->sta_mtx); sta = sta_info_get(sdata, sdata->vif.cfg.ap_addr); if (WARN_ON(!sta)) { - mutex_unlock(&local->sta_mtx); goto free; } link_sta = rcu_dereference_protected(sta->link[link->link_id], - lockdep_is_held(&local->sta_mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); if (WARN_ON(!link_sta)) { - mutex_unlock(&local->sta_mtx); goto free; } @@ -6185,7 +6330,6 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_link_data *link, elems->vht_operation, elems->he_operation, elems->eht_operation, elems->s1g_oper, bssid, &changed)) { - mutex_unlock(&local->sta_mtx); sdata_info(sdata, "failed to follow AP %pM bandwidth change, disconnect\n", bssid); @@ -6203,7 +6347,6 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_link_data *link, ieee80211_vht_handle_opmode(sdata, link_sta, *elems->opmode_notif, rx_status->band); - mutex_unlock(&local->sta_mtx); changed |= ieee80211_handle_pwr_constr(link, chan, mgmt, elems->country_elem, @@ -6227,6 +6370,8 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_link_data *link, } ieee80211_ml_reconfiguration(sdata, elems); + ieee80211_process_adv_ttlm(sdata, elems, + le64_to_cpu(mgmt->u.beacon.timestamp)); ieee80211_link_info_change_notify(sdata, link, changed); free: @@ -6241,17 +6386,17 @@ void ieee80211_sta_rx_queued_ext(struct ieee80211_sub_if_data *sdata, struct ieee80211_hdr *hdr; u16 fc; + lockdep_assert_wiphy(sdata->local->hw.wiphy); + rx_status = (struct ieee80211_rx_status *) skb->cb; hdr = (struct ieee80211_hdr *) skb->data; fc = le16_to_cpu(hdr->frame_control); - sdata_lock(sdata); switch (fc & IEEE80211_FCTL_STYPE) { case IEEE80211_STYPE_S1G_BEACON: ieee80211_rx_mgmt_beacon(link, hdr, skb->len, rx_status); break; } - sdata_unlock(sdata); } void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, @@ -6263,17 +6408,17 @@ void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, u16 fc; int ies_len; + lockdep_assert_wiphy(sdata->local->hw.wiphy); + rx_status = (struct ieee80211_rx_status *) skb->cb; mgmt = (struct ieee80211_mgmt *) skb->data; fc = le16_to_cpu(mgmt->frame_control); - sdata_lock(sdata); - if (rx_status->link_valid) { link = sdata_dereference(sdata->link[rx_status->link_id], sdata); if (!link) - goto out; + return; } switch (fc & IEEE80211_FCTL_STYPE) { @@ -6356,8 +6501,6 @@ void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, } break; } -out: - sdata_unlock(sdata); } static void ieee80211_sta_timer(struct timer_list *t) @@ -6392,7 +6535,7 @@ static int ieee80211_auth(struct ieee80211_sub_if_data *sdata) .subtype = IEEE80211_STYPE_AUTH, }; - sdata_assert_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); if (WARN_ON_ONCE(!auth_data)) return -EINVAL; @@ -6461,7 +6604,7 @@ static int ieee80211_do_assoc(struct ieee80211_sub_if_data *sdata) struct ieee80211_local *local = sdata->local; int ret; - sdata_assert_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); assoc_data->tries++; if (assoc_data->tries > IEEE80211_ASSOC_MAX_TRIES) { @@ -6517,7 +6660,7 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata) struct ieee80211_local *local = sdata->local; struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - sdata_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); if (ifmgd->status_received) { __le16 fc = ifmgd->status_fc; @@ -6652,8 +6795,6 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata) WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, false); } } - - sdata_unlock(sdata); } static void ieee80211_sta_bcn_mon_timer(struct timer_list *t) @@ -6709,10 +6850,11 @@ static void ieee80211_sta_conn_mon_timer(struct timer_list *t) return; } - ieee80211_queue_work(&local->hw, &ifmgd->monitor_work); + wiphy_work_queue(local->hw.wiphy, &sdata->u.mgd.monitor_work); } -static void ieee80211_sta_monitor_work(struct work_struct *work) +static void ieee80211_sta_monitor_work(struct wiphy *wiphy, + struct wiphy_work *work) { struct ieee80211_sub_if_data *sdata = container_of(work, struct ieee80211_sub_if_data, @@ -6728,8 +6870,8 @@ static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata) /* let's probe the connection once */ if (!ieee80211_hw_check(&sdata->local->hw, CONNECTION_MONITOR)) - ieee80211_queue_work(&sdata->local->hw, - &sdata->u.mgd.monitor_work); + wiphy_work_queue(sdata->local->hw.wiphy, + &sdata->u.mgd.monitor_work); } } @@ -6739,7 +6881,7 @@ void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata) struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; - sdata_lock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); if (ifmgd->auth_data || ifmgd->assoc_data) { const u8 *ap_addr = ifmgd->auth_data ? @@ -6791,8 +6933,6 @@ void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata) memcpy(bssid, sdata->vif.cfg.ap_addr, ETH_ALEN); ieee80211_mgd_deauth(sdata, &req); } - - sdata_unlock(sdata); } #endif @@ -6800,11 +6940,10 @@ void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata) { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - sdata_lock(sdata); - if (!ifmgd->associated) { - sdata_unlock(sdata); + lockdep_assert_wiphy(sdata->local->hw.wiphy); + + if (!ifmgd->associated) return; - } if (sdata->flags & IEEE80211_SDATA_DISCONNECT_RESUME) { sdata->flags &= ~IEEE80211_SDATA_DISCONNECT_RESUME; @@ -6812,7 +6951,6 @@ void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata) ieee80211_sta_connection_lost(sdata, WLAN_REASON_UNSPECIFIED, true); - sdata_unlock(sdata); return; } @@ -6822,11 +6960,8 @@ void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata) ieee80211_sta_connection_lost(sdata, WLAN_REASON_UNSPECIFIED, true); - sdata_unlock(sdata); return; } - - sdata_unlock(sdata); } static void ieee80211_request_smps_mgd_work(struct wiphy *wiphy, @@ -6836,10 +6971,8 @@ static void ieee80211_request_smps_mgd_work(struct wiphy *wiphy, container_of(work, struct ieee80211_link_data, u.mgd.request_smps_work); - sdata_lock(link->sdata); __ieee80211_request_smps_mgd(link->sdata, link, link->u.mgd.driver_smps_mode); - sdata_unlock(link->sdata); } /* interface setup */ @@ -6847,20 +6980,22 @@ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata) { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - INIT_WORK(&ifmgd->monitor_work, ieee80211_sta_monitor_work); + wiphy_work_init(&ifmgd->monitor_work, ieee80211_sta_monitor_work); wiphy_work_init(&ifmgd->beacon_connection_loss_work, ieee80211_beacon_connection_loss_work); wiphy_work_init(&ifmgd->csa_connection_drop_work, ieee80211_csa_connection_drop_work); - INIT_DELAYED_WORK(&ifmgd->tdls_peer_del_work, - ieee80211_tdls_peer_del_work); + wiphy_delayed_work_init(&ifmgd->tdls_peer_del_work, + ieee80211_tdls_peer_del_work); wiphy_delayed_work_init(&ifmgd->ml_reconf_work, ieee80211_ml_reconf_work); timer_setup(&ifmgd->timer, ieee80211_sta_timer, 0); timer_setup(&ifmgd->bcn_mon_timer, ieee80211_sta_bcn_mon_timer, 0); timer_setup(&ifmgd->conn_mon_timer, ieee80211_sta_conn_mon_timer, 0); - INIT_DELAYED_WORK(&ifmgd->tx_tspec_wk, - ieee80211_sta_handle_tspec_ac_params_wk); + wiphy_delayed_work_init(&ifmgd->tx_tspec_wk, + ieee80211_sta_handle_tspec_ac_params_wk); + wiphy_delayed_work_init(&ifmgd->ttlm_work, + ieee80211_tid_to_link_map_work); ifmgd->flags = 0; ifmgd->powersave = sdata->wdev.ps; @@ -6872,6 +7007,16 @@ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata) ifmgd->orig_teardown_skb = NULL; } +static void ieee80211_recalc_smps_work(struct wiphy *wiphy, + struct wiphy_work *work) +{ + struct ieee80211_link_data *link = + container_of(work, struct ieee80211_link_data, + u.mgd.recalc_smps); + + ieee80211_recalc_smps(link->sdata, link); +} + void ieee80211_mgd_setup_link(struct ieee80211_link_data *link) { struct ieee80211_sub_if_data *sdata = link->sdata; @@ -6884,6 +7029,8 @@ void ieee80211_mgd_setup_link(struct ieee80211_link_data *link) wiphy_work_init(&link->u.mgd.request_smps_work, ieee80211_request_smps_mgd_work); + wiphy_work_init(&link->u.mgd.recalc_smps, + ieee80211_recalc_smps_work); if (local->hw.wiphy->features & NL80211_FEATURE_DYNAMIC_SMPS) link->u.mgd.req_smps = IEEE80211_SMPS_AUTOMATIC; else @@ -7047,7 +7194,7 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata, } if (new_sta || override) { - err = ieee80211_prep_channel(sdata, link, cbss, + err = ieee80211_prep_channel(sdata, link, cbss, mlo, &link->u.mgd.conn_flags); if (err) { if (new_sta) @@ -7099,10 +7246,14 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, struct ieee80211_local *local = sdata->local; struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; struct ieee80211_mgd_auth_data *auth_data; + struct ieee80211_link_data *link; + const struct element *csa_elem, *ecsa_elem; u16 auth_alg; int err; bool cont_auth; + lockdep_assert_wiphy(sdata->local->hw.wiphy); + /* prepare auth data structure */ switch (req->auth_type) { @@ -7139,6 +7290,22 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, if (ifmgd->assoc_data) return -EBUSY; + rcu_read_lock(); + csa_elem = ieee80211_bss_get_elem(req->bss, WLAN_EID_CHANNEL_SWITCH); + ecsa_elem = ieee80211_bss_get_elem(req->bss, + WLAN_EID_EXT_CHANSWITCH_ANN); + if ((csa_elem && + csa_elem->datalen == sizeof(struct ieee80211_channel_sw_ie) && + ((struct ieee80211_channel_sw_ie *)csa_elem->data)->count != 0) || + (ecsa_elem && + ecsa_elem->datalen == sizeof(struct ieee80211_ext_chansw_ie) && + ((struct ieee80211_ext_chansw_ie *)ecsa_elem->data)->count != 0)) { + rcu_read_unlock(); + sdata_info(sdata, "AP is in CSA process, reject auth\n"); + return -EINVAL; + } + rcu_read_unlock(); + auth_data = kzalloc(sizeof(*auth_data) + req->auth_data_len + req->ie_len, GFP_KERNEL); if (!auth_data) @@ -7222,8 +7389,6 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, false); } - sdata_info(sdata, "authenticate with %pM\n", auth_data->ap_addr); - /* needed for transmitting the auth frame(s) properly */ memcpy(sdata->vif.cfg.ap_addr, auth_data->ap_addr, ETH_ALEN); @@ -7232,6 +7397,19 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, if (err) goto err_clear; + if (req->link_id > 0) + link = sdata_dereference(sdata->link[req->link_id], sdata); + else + link = sdata_dereference(sdata->link[0], sdata); + + if (WARN_ON(!link)) { + err = -ENOLINK; + goto err_clear; + } + + sdata_info(sdata, "authenticate with %pM (local address=%pM)\n", + auth_data->ap_addr, link->conf->addr); + err = ieee80211_auth(sdata); if (err) { sta_info_destroy_addr(sdata, auth_data->ap_addr); @@ -7247,9 +7425,7 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, eth_zero_addr(sdata->deflink.u.mgd.bssid); ieee80211_link_info_change_notify(sdata, &sdata->deflink, BSS_CHANGED_BSSID); - mutex_lock(&sdata->local->mtx); ieee80211_link_release_channel(&sdata->deflink); - mutex_unlock(&sdata->local->mtx); } ifmgd->auth_data = NULL; kfree(auth_data); @@ -7264,7 +7440,7 @@ ieee80211_setup_assoc_link(struct ieee80211_sub_if_data *sdata, unsigned int link_id) { struct ieee80211_local *local = sdata->local; - const struct cfg80211_bss_ies *beacon_ies; + const struct cfg80211_bss_ies *bss_ies; struct ieee80211_supported_band *sband; const struct element *ht_elem, *vht_elem; struct ieee80211_link_data *link; @@ -7339,32 +7515,37 @@ ieee80211_setup_assoc_link(struct ieee80211_sub_if_data *sdata, link->conf->eht_puncturing = 0; rcu_read_lock(); - beacon_ies = rcu_dereference(cbss->beacon_ies); - if (beacon_ies) { - const struct ieee80211_eht_operation *eht_oper; - const struct element *elem; + bss_ies = rcu_dereference(cbss->beacon_ies); + if (bss_ies) { u8 dtim_count = 0; - ieee80211_get_dtim(beacon_ies, &dtim_count, + ieee80211_get_dtim(bss_ies, &dtim_count, &link->u.mgd.dtim_period); sdata->deflink.u.mgd.have_beacon = true; if (ieee80211_hw_check(&local->hw, TIMING_BEACON_ONLY)) { - link->conf->sync_tsf = beacon_ies->tsf; + link->conf->sync_tsf = bss_ies->tsf; link->conf->sync_device_ts = bss->device_ts_beacon; link->conf->sync_dtim_count = dtim_count; } + } else { + bss_ies = rcu_dereference(cbss->ies); + } + + if (bss_ies) { + const struct ieee80211_eht_operation *eht_oper; + const struct element *elem; elem = cfg80211_find_ext_elem(WLAN_EID_EXT_MULTIPLE_BSSID_CONFIGURATION, - beacon_ies->data, beacon_ies->len); + bss_ies->data, bss_ies->len); if (elem && elem->datalen >= 3) link->conf->profile_periodicity = elem->data[2]; else link->conf->profile_periodicity = 0; elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, - beacon_ies->data, beacon_ies->len); + bss_ies->data, bss_ies->len); if (elem && elem->datalen >= 11 && (elem->data[10] & WLAN_EXT_CAPA11_EMA_SUPPORT)) link->conf->ema_ap = true; @@ -7372,7 +7553,7 @@ ieee80211_setup_assoc_link(struct ieee80211_sub_if_data *sdata, link->conf->ema_ap = false; elem = cfg80211_find_ext_elem(WLAN_EID_EXT_EHT_OPERATION, - beacon_ies->data, beacon_ies->len); + bss_ies->data, bss_ies->len); eht_oper = (const void *)(elem->data + 1); if (elem && @@ -7432,7 +7613,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, struct ieee80211_local *local = sdata->local; struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; struct ieee80211_mgd_assoc_data *assoc_data; - const struct element *ssid_elem; + const struct element *ssid_elem, *csa_elem, *ecsa_elem; struct ieee80211_vif_cfg *vif_cfg = &sdata->vif.cfg; ieee80211_conn_flags_t conn_flags = 0; struct ieee80211_link_data *link; @@ -7462,6 +7643,21 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, kfree(assoc_data); return -EINVAL; } + + csa_elem = ieee80211_bss_get_elem(cbss, WLAN_EID_CHANNEL_SWITCH); + ecsa_elem = ieee80211_bss_get_elem(cbss, WLAN_EID_EXT_CHANSWITCH_ANN); + if ((csa_elem && + csa_elem->datalen == sizeof(struct ieee80211_channel_sw_ie) && + ((struct ieee80211_channel_sw_ie *)csa_elem->data)->count != 0) || + (ecsa_elem && + ecsa_elem->datalen == sizeof(struct ieee80211_ext_chansw_ie) && + ((struct ieee80211_ext_chansw_ie *)ecsa_elem->data)->count != 0)) { + sdata_info(sdata, "AP is in CSA process, reject assoc\n"); + rcu_read_unlock(); + kfree(assoc_data); + return -EINVAL; + } + memcpy(assoc_data->ssid, ssid_elem->data, ssid_elem->datalen); assoc_data->ssid_len = ssid_elem->datalen; memcpy(vif_cfg->ssid, assoc_data->ssid, assoc_data->ssid_len); @@ -7703,10 +7899,13 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, if (i == assoc_data->assoc_link_id) continue; /* only calculate the flags, hence link == NULL */ - err = ieee80211_prep_channel(sdata, NULL, assoc_data->link[i].bss, + err = ieee80211_prep_channel(sdata, NULL, + assoc_data->link[i].bss, true, &assoc_data->link[i].conn_flags); - if (err) + if (err) { + req->links[i].error = err; goto err_clear; + } } /* needed for transmitting the assoc frames properly */ @@ -7849,6 +8048,8 @@ void ieee80211_mgd_stop_link(struct ieee80211_link_data *link) { wiphy_work_cancel(link->sdata->local->hw.wiphy, &link->u.mgd.request_smps_work); + wiphy_work_cancel(link->sdata->local->hw.wiphy, + &link->u.mgd.recalc_smps); wiphy_delayed_work_cancel(link->sdata->local->hw.wiphy, &link->u.mgd.chswitch_work); } @@ -7862,16 +8063,18 @@ void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata) * they will not do anything but might not have been * cancelled when disconnecting. */ - cancel_work_sync(&ifmgd->monitor_work); + wiphy_work_cancel(sdata->local->hw.wiphy, + &ifmgd->monitor_work); wiphy_work_cancel(sdata->local->hw.wiphy, &ifmgd->beacon_connection_loss_work); wiphy_work_cancel(sdata->local->hw.wiphy, &ifmgd->csa_connection_drop_work); - cancel_delayed_work_sync(&ifmgd->tdls_peer_del_work); + wiphy_delayed_work_cancel(sdata->local->hw.wiphy, + &ifmgd->tdls_peer_del_work); wiphy_delayed_work_cancel(sdata->local->hw.wiphy, &ifmgd->ml_reconf_work); + wiphy_delayed_work_cancel(sdata->local->hw.wiphy, &ifmgd->ttlm_work); - sdata_lock(sdata); if (ifmgd->assoc_data) ieee80211_destroy_assoc_data(sdata, ASSOC_TIMEOUT); if (ifmgd->auth_data) @@ -7887,7 +8090,6 @@ void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata) ifmgd->assoc_req_ies_len = 0; spin_unlock_bh(&ifmgd->teardown_lock); del_timer_sync(&ifmgd->timer); - sdata_unlock(sdata); } void ieee80211_cqm_rssi_notify(struct ieee80211_vif *vif, diff --git a/net/mac80211/ocb.c b/net/mac80211/ocb.c index b44896e14522..449af4e1cca4 100644 --- a/net/mac80211/ocb.c +++ b/net/mac80211/ocb.c @@ -44,7 +44,6 @@ void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata, struct ieee80211_local *local = sdata->local; struct ieee80211_chanctx_conf *chanctx_conf; struct ieee80211_supported_band *sband; - enum nl80211_bss_scan_width scan_width; struct sta_info *sta; int band; @@ -66,7 +65,6 @@ void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata, return; } band = chanctx_conf->def.chan->band; - scan_width = cfg80211_chandef_to_scan_width(&chanctx_conf->def); rcu_read_unlock(); sta = sta_info_alloc(sdata, addr, GFP_ATOMIC); @@ -75,8 +73,7 @@ void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata, /* Add only mandatory rates for now */ sband = local->hw.wiphy->bands[band]; - sta->sta.deflink.supp_rates[band] = - ieee80211_mandatory_rates(sband, scan_width); + sta->sta.deflink.supp_rates[band] = ieee80211_mandatory_rates(sband); spin_lock(&ifocb->incomplete_lock); list_add(&sta->list, &ifocb->incomplete_stations); @@ -124,11 +121,11 @@ void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata) struct ieee80211_if_ocb *ifocb = &sdata->u.ocb; struct sta_info *sta; + lockdep_assert_wiphy(sdata->local->hw.wiphy); + if (ifocb->joined != true) return; - sdata_lock(sdata); - spin_lock_bh(&ifocb->incomplete_lock); while (!list_empty(&ifocb->incomplete_stations)) { sta = list_first_entry(&ifocb->incomplete_stations, @@ -144,8 +141,6 @@ void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata) if (test_and_clear_bit(OCB_WORK_HOUSEKEEPING, &ifocb->wrkq_flags)) ieee80211_ocb_housekeeping(sdata); - - sdata_unlock(sdata); } static void ieee80211_ocb_housekeeping_timer(struct timer_list *t) @@ -178,6 +173,8 @@ int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata, u64 changed = BSS_CHANGED_OCB | BSS_CHANGED_BSSID; int err; + lockdep_assert_wiphy(sdata->local->hw.wiphy); + if (ifocb->joined == true) return -EINVAL; @@ -185,10 +182,8 @@ int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata, sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; sdata->deflink.needed_rx_chains = sdata->local->rx_chains; - mutex_lock(&sdata->local->mtx); err = ieee80211_link_use_channel(&sdata->deflink, &setup->chandef, IEEE80211_CHANCTX_SHARED); - mutex_unlock(&sdata->local->mtx); if (err) return err; @@ -209,6 +204,8 @@ int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata) struct ieee80211_local *local = sdata->local; struct sta_info *sta; + lockdep_assert_wiphy(sdata->local->hw.wiphy); + ifocb->joined = false; sta_info_flush(sdata); @@ -228,9 +225,7 @@ int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata) clear_bit(SDATA_STATE_OFFCHANNEL, &sdata->state); ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_OCB); - mutex_lock(&sdata->local->mtx); ieee80211_link_release_channel(&sdata->deflink); - mutex_unlock(&sdata->local->mtx); skb_queue_purge(&sdata->skb_queue); diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c index cdf991e74ab9..071582dbe6a5 100644 --- a/net/mac80211/offchannel.c +++ b/net/mac80211/offchannel.c @@ -34,7 +34,7 @@ static void ieee80211_offchannel_ps_enable(struct ieee80211_sub_if_data *sdata) del_timer_sync(&ifmgd->bcn_mon_timer); del_timer_sync(&ifmgd->conn_mon_timer); - cancel_work_sync(&local->dynamic_ps_enable_work); + wiphy_work_cancel(local->hw.wiphy, &local->dynamic_ps_enable_work); if (local->hw.conf.flags & IEEE80211_CONF_PS) { offchannel_ps_enabled = true; @@ -84,6 +84,8 @@ void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local) { struct ieee80211_sub_if_data *sdata; + lockdep_assert_wiphy(local->hw.wiphy); + if (WARN_ON(local->use_chanctx)) return; @@ -101,7 +103,6 @@ void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local) false); ieee80211_flush_queues(local, NULL, false); - mutex_lock(&local->iflist_mtx); list_for_each_entry(sdata, &local->interfaces, list) { if (!ieee80211_sdata_running(sdata)) continue; @@ -127,17 +128,17 @@ void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local) sdata->u.mgd.associated) ieee80211_offchannel_ps_enable(sdata); } - mutex_unlock(&local->iflist_mtx); } void ieee80211_offchannel_return(struct ieee80211_local *local) { struct ieee80211_sub_if_data *sdata; + lockdep_assert_wiphy(local->hw.wiphy); + if (WARN_ON(local->use_chanctx)) return; - mutex_lock(&local->iflist_mtx); list_for_each_entry(sdata, &local->interfaces, list) { if (sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE) continue; @@ -161,7 +162,6 @@ void ieee80211_offchannel_return(struct ieee80211_local *local) BSS_CHANGED_BEACON_ENABLED); } } - mutex_unlock(&local->iflist_mtx); ieee80211_wake_queues_by_reason(&local->hw, IEEE80211_MAX_QUEUE_MAP, IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL, @@ -197,7 +197,7 @@ static unsigned long ieee80211_end_finished_rocs(struct ieee80211_local *local, struct ieee80211_roc_work *roc, *tmp; long remaining_dur_min = LONG_MAX; - lockdep_assert_held(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); list_for_each_entry_safe(roc, tmp, &local->roc_list, list) { long remaining; @@ -230,7 +230,7 @@ static bool ieee80211_recalc_sw_work(struct ieee80211_local *local, if (dur == LONG_MAX) return false; - mod_delayed_work(local->workqueue, &local->roc_work, dur); + wiphy_delayed_work_queue(local->hw.wiphy, &local->roc_work, dur); return true; } @@ -258,13 +258,13 @@ static void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc, roc->notified = true; } -static void ieee80211_hw_roc_start(struct work_struct *work) +static void ieee80211_hw_roc_start(struct wiphy *wiphy, struct wiphy_work *work) { struct ieee80211_local *local = container_of(work, struct ieee80211_local, hw_roc_start); struct ieee80211_roc_work *roc; - mutex_lock(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); list_for_each_entry(roc, &local->roc_list, list) { if (!roc->started) @@ -273,8 +273,6 @@ static void ieee80211_hw_roc_start(struct work_struct *work) roc->hw_begun = true; ieee80211_handle_roc_started(roc, local->hw_roc_start_time); } - - mutex_unlock(&local->mtx); } void ieee80211_ready_on_channel(struct ieee80211_hw *hw) @@ -285,7 +283,7 @@ void ieee80211_ready_on_channel(struct ieee80211_hw *hw) trace_api_ready_on_channel(local); - ieee80211_queue_work(hw, &local->hw_roc_start); + wiphy_work_queue(hw->wiphy, &local->hw_roc_start); } EXPORT_SYMBOL_GPL(ieee80211_ready_on_channel); @@ -295,7 +293,7 @@ static void _ieee80211_start_next_roc(struct ieee80211_local *local) enum ieee80211_roc_type type; u32 min_dur, max_dur; - lockdep_assert_held(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); if (WARN_ON(list_empty(&local->roc_list))) return; @@ -338,7 +336,7 @@ static void _ieee80211_start_next_roc(struct ieee80211_local *local) tmp->started = true; tmp->abort = true; } - ieee80211_queue_work(&local->hw, &local->hw_roc_done); + wiphy_work_queue(local->hw.wiphy, &local->hw_roc_done); return; } @@ -368,8 +366,8 @@ static void _ieee80211_start_next_roc(struct ieee80211_local *local) ieee80211_hw_config(local, 0); } - ieee80211_queue_delayed_work(&local->hw, &local->roc_work, - msecs_to_jiffies(min_dur)); + wiphy_delayed_work_queue(local->hw.wiphy, &local->roc_work, + msecs_to_jiffies(min_dur)); /* tell userspace or send frame(s) */ list_for_each_entry(tmp, &local->roc_list, list) { @@ -386,7 +384,7 @@ void ieee80211_start_next_roc(struct ieee80211_local *local) { struct ieee80211_roc_work *roc; - lockdep_assert_held(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); if (list_empty(&local->roc_list)) { ieee80211_run_deferred_scan(local); @@ -407,8 +405,8 @@ void ieee80211_start_next_roc(struct ieee80211_local *local) _ieee80211_start_next_roc(local); } else { /* delay it a bit */ - ieee80211_queue_delayed_work(&local->hw, &local->roc_work, - round_jiffies_relative(HZ/2)); + wiphy_delayed_work_queue(local->hw.wiphy, &local->roc_work, + round_jiffies_relative(HZ / 2)); } } @@ -417,7 +415,7 @@ static void __ieee80211_roc_work(struct ieee80211_local *local) struct ieee80211_roc_work *roc; bool on_channel; - lockdep_assert_held(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); if (WARN_ON(local->ops->remain_on_channel)) return; @@ -451,29 +449,27 @@ static void __ieee80211_roc_work(struct ieee80211_local *local) } } -static void ieee80211_roc_work(struct work_struct *work) +static void ieee80211_roc_work(struct wiphy *wiphy, struct wiphy_work *work) { struct ieee80211_local *local = container_of(work, struct ieee80211_local, roc_work.work); - mutex_lock(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); + __ieee80211_roc_work(local); - mutex_unlock(&local->mtx); } -static void ieee80211_hw_roc_done(struct work_struct *work) +static void ieee80211_hw_roc_done(struct wiphy *wiphy, struct wiphy_work *work) { struct ieee80211_local *local = container_of(work, struct ieee80211_local, hw_roc_done); - mutex_lock(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); ieee80211_end_finished_rocs(local, jiffies); /* if there's another roc, start it now */ ieee80211_start_next_roc(local); - - mutex_unlock(&local->mtx); } void ieee80211_remain_on_channel_expired(struct ieee80211_hw *hw) @@ -482,7 +478,7 @@ void ieee80211_remain_on_channel_expired(struct ieee80211_hw *hw) trace_api_remain_on_channel_expired(local); - ieee80211_queue_work(hw, &local->hw_roc_done); + wiphy_work_queue(hw->wiphy, &local->hw_roc_done); } EXPORT_SYMBOL_GPL(ieee80211_remain_on_channel_expired); @@ -537,7 +533,7 @@ static int ieee80211_start_roc_work(struct ieee80211_local *local, bool queued = false, combine_started = true; int ret; - lockdep_assert_held(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); if (channel->freq_offset) /* this may work, but is untested */ @@ -586,8 +582,8 @@ static int ieee80211_start_roc_work(struct ieee80211_local *local, /* if not HW assist, just queue & schedule work */ if (!local->ops->remain_on_channel) { list_add_tail(&roc->list, &local->roc_list); - ieee80211_queue_delayed_work(&local->hw, - &local->roc_work, 0); + wiphy_delayed_work_queue(local->hw.wiphy, + &local->roc_work, 0); } else { /* otherwise actually kick it off here * (for error handling) @@ -675,15 +671,12 @@ int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev, { struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); struct ieee80211_local *local = sdata->local; - int ret; - mutex_lock(&local->mtx); - ret = ieee80211_start_roc_work(local, sdata, chan, - duration, cookie, NULL, - IEEE80211_ROC_TYPE_NORMAL); - mutex_unlock(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); - return ret; + return ieee80211_start_roc_work(local, sdata, chan, + duration, cookie, NULL, + IEEE80211_ROC_TYPE_NORMAL); } static int ieee80211_cancel_roc(struct ieee80211_local *local, @@ -692,12 +685,13 @@ static int ieee80211_cancel_roc(struct ieee80211_local *local, struct ieee80211_roc_work *roc, *tmp, *found = NULL; int ret; + lockdep_assert_wiphy(local->hw.wiphy); + if (!cookie) return -ENOENT; - flush_work(&local->hw_roc_start); + wiphy_work_flush(local->hw.wiphy, &local->hw_roc_start); - mutex_lock(&local->mtx); list_for_each_entry_safe(roc, tmp, &local->roc_list, list) { if (!mgmt_tx && roc->cookie != cookie) continue; @@ -709,7 +703,6 @@ static int ieee80211_cancel_roc(struct ieee80211_local *local, } if (!found) { - mutex_unlock(&local->mtx); return -ENOENT; } @@ -721,7 +714,6 @@ static int ieee80211_cancel_roc(struct ieee80211_local *local, if (local->ops->remain_on_channel) { ret = drv_cancel_remain_on_channel(local, roc->sdata); if (WARN_ON_ONCE(ret)) { - mutex_unlock(&local->mtx); return ret; } @@ -745,11 +737,10 @@ static int ieee80211_cancel_roc(struct ieee80211_local *local, } else { /* go through work struct to return to the operating channel */ found->abort = true; - mod_delayed_work(local->workqueue, &local->roc_work, 0); + wiphy_delayed_work_queue(local->hw.wiphy, &local->roc_work, 0); } out_unlock: - mutex_unlock(&local->mtx); return 0; } @@ -778,6 +769,8 @@ int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, int ret; u8 *data; + lockdep_assert_wiphy(local->hw.wiphy); + if (params->dont_wait_for_ack) flags = IEEE80211_TX_CTL_NO_ACK; else @@ -833,13 +826,16 @@ int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, break; case NL80211_IFTYPE_STATION: case NL80211_IFTYPE_P2P_CLIENT: - sdata_lock(sdata); if (!sdata->u.mgd.associated || (params->offchan && params->wait && local->ops->remain_on_channel && - memcmp(sdata->vif.cfg.ap_addr, mgmt->bssid, ETH_ALEN))) + memcmp(sdata->vif.cfg.ap_addr, mgmt->bssid, ETH_ALEN))) { need_offchan = true; - sdata_unlock(sdata); + } else if (sdata->u.mgd.associated && + ether_addr_equal(sdata->vif.cfg.ap_addr, mgmt->da)) { + sta = sta_info_get_bss(sdata, mgmt->da); + mlo_sta = sta && sta->sta.mlo; + } break; case NL80211_IFTYPE_P2P_DEVICE: need_offchan = true; @@ -855,8 +851,6 @@ int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, if (need_offchan && !params->chan) return -EINVAL; - mutex_lock(&local->mtx); - /* Check if the operating channel is the requested channel */ if (!params->chan && mlo_sta) { need_offchan = false; @@ -980,7 +974,6 @@ int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, if (ret) ieee80211_free_txskb(&local->hw, skb); out_unlock: - mutex_unlock(&local->mtx); return ret; } @@ -994,9 +987,9 @@ int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy, void ieee80211_roc_setup(struct ieee80211_local *local) { - INIT_WORK(&local->hw_roc_start, ieee80211_hw_roc_start); - INIT_WORK(&local->hw_roc_done, ieee80211_hw_roc_done); - INIT_DELAYED_WORK(&local->roc_work, ieee80211_roc_work); + wiphy_work_init(&local->hw_roc_start, ieee80211_hw_roc_start); + wiphy_work_init(&local->hw_roc_done, ieee80211_hw_roc_done); + wiphy_delayed_work_init(&local->roc_work, ieee80211_roc_work); INIT_LIST_HEAD(&local->roc_list); } @@ -1006,7 +999,8 @@ void ieee80211_roc_purge(struct ieee80211_local *local, struct ieee80211_roc_work *roc, *tmp; bool work_to_do = false; - mutex_lock(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); + list_for_each_entry_safe(roc, tmp, &local->roc_list, list) { if (sdata && roc->sdata != sdata) continue; @@ -1026,5 +1020,4 @@ void ieee80211_roc_purge(struct ieee80211_local *local, } if (work_to_do) __ieee80211_roc_work(local); - mutex_unlock(&local->mtx); } diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c index 0ccb5701c7f3..c1fa26e09479 100644 --- a/net/mac80211/pm.c +++ b/net/mac80211/pm.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 /* * Portions - * Copyright (C) 2020-2021 Intel Corporation + * Copyright (C) 2020-2021, 2023 Intel Corporation */ #include <net/mac80211.h> #include <net/rtnetlink.h> @@ -40,13 +40,12 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) if (ieee80211_hw_check(hw, AMPDU_AGGREGATION) && !(wowlan && wowlan->any)) { - mutex_lock(&local->sta_mtx); + lockdep_assert_wiphy(local->hw.wiphy); list_for_each_entry(sta, &local->sta_list, list) { set_sta_flag(sta, WLAN_STA_BLOCK_BA); ieee80211_sta_tear_down_BA_sessions( sta, AGG_STOP_LOCAL_REQUEST); } - mutex_unlock(&local->sta_mtx); } /* keep sched_scan only in case of 'any' trigger */ @@ -76,7 +75,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) * Note that this particular timer doesn't need to be * restarted at resume. */ - cancel_work_sync(&local->dynamic_ps_enable_work); + wiphy_work_cancel(local->hw.wiphy, &local->dynamic_ps_enable_work); del_timer_sync(&local->dynamic_ps_timer); local->wowlan = wowlan; @@ -119,12 +118,11 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) local->quiescing = false; local->wowlan = false; if (ieee80211_hw_check(hw, AMPDU_AGGREGATION)) { - mutex_lock(&local->sta_mtx); + lockdep_assert_wiphy(local->hw.wiphy); list_for_each_entry(sta, &local->sta_list, list) { clear_sta_flag(sta, WLAN_STA_BLOCK_BA); } - mutex_unlock(&local->sta_mtx); } ieee80211_wake_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, @@ -161,7 +159,8 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) break; } - flush_delayed_work(&sdata->dec_tailroom_needed_wk); + wiphy_delayed_work_flush(local->hw.wiphy, + &sdata->dec_tailroom_needed_wk); drv_remove_interface(local, sdata); } diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c index b34c80522047..6bf3b4444a43 100644 --- a/net/mac80211/rc80211_minstrel_ht.c +++ b/net/mac80211/rc80211_minstrel_ht.c @@ -1725,16 +1725,15 @@ minstrel_ht_update_caps(void *priv, struct ieee80211_supported_band *sband, mi->band = sband->band; mi->last_stats_update = jiffies; - ack_dur = ieee80211_frame_duration(sband->band, 10, 60, 1, 1, 0); - mi->overhead = ieee80211_frame_duration(sband->band, 0, 60, 1, 1, 0); + ack_dur = ieee80211_frame_duration(sband->band, 10, 60, 1, 1); + mi->overhead = ieee80211_frame_duration(sband->band, 0, 60, 1, 1); mi->overhead += ack_dur; mi->overhead_rtscts = mi->overhead + 2 * ack_dur; ctl_rate = &sband->bitrates[rate_lowest_index(sband, sta)]; erp = ctl_rate->flags & IEEE80211_RATE_ERP_G; ack_dur = ieee80211_frame_duration(sband->band, 10, - ctl_rate->bitrate, erp, 1, - ieee80211_chandef_get_shift(chandef)); + ctl_rate->bitrate, erp, 1); mi->overhead_legacy = ack_dur; mi->overhead_legacy_rtscts = mi->overhead_legacy + 2 * ack_dur; diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index e751cda5eef6..051db97a92b4 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1436,7 +1436,7 @@ ieee80211_rx_h_check_dup(struct ieee80211_rx_data *rx) rx->sta->last_seq_ctrl[rx->seqno_idx] == hdr->seq_ctrl)) { I802_DEBUG_INC(rx->local->dot11FrameDuplicateCount); rx->link_sta->rx_stats.num_duplicates++; - return RX_DROP_UNUSABLE; + return RX_DROP_U_DUP; } else if (!(status->flag & RX_FLAG_AMSDU_MORE)) { rx->sta->last_seq_ctrl[rx->seqno_idx] = hdr->seq_ctrl; } @@ -1490,7 +1490,7 @@ ieee80211_rx_h_check(struct ieee80211_rx_data *rx) cfg80211_rx_spurious_frame(rx->sdata->dev, hdr->addr2, GFP_ATOMIC)) - return RX_DROP_UNUSABLE; + return RX_DROP_U_SPURIOUS; return RX_DROP_MONITOR; } @@ -1883,7 +1883,7 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx) struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb); struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; int keyidx; - ieee80211_rx_result result = RX_DROP_UNUSABLE; + ieee80211_rx_result result = RX_DROP_U_DECRYPT_FAIL; struct ieee80211_key *sta_ptk = NULL; struct ieee80211_key *ptk_idx = NULL; int mmie_keyidx = -1; @@ -1933,7 +1933,7 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx) keyid = ieee80211_get_keyid(rx->skb); if (unlikely(keyid < 0)) - return RX_DROP_UNUSABLE; + return RX_DROP_U_NO_KEY_ID; ptk_idx = rcu_dereference(rx->sta->ptk[keyid]); } @@ -2038,7 +2038,7 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx) keyidx = ieee80211_get_keyid(rx->skb); if (unlikely(keyidx < 0)) - return RX_DROP_UNUSABLE; + return RX_DROP_U_NO_KEY_ID; /* check per-station GTK first, if multicast packet */ if (is_multicast_ether_addr(hdr->addr1) && rx->link_sta) @@ -2104,7 +2104,7 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx) result = ieee80211_crypto_gcmp_decrypt(rx); break; default: - result = RX_DROP_UNUSABLE; + result = RX_DROP_U_BAD_CIPHER; } /* the hdr variable is invalid after the decrypt handlers */ @@ -2112,7 +2112,7 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx) /* either the frame has been decrypted or will be dropped */ status->flag |= RX_FLAG_DECRYPTED; - if (unlikely(ieee80211_is_beacon(fc) && (result & RX_DROP_UNUSABLE) && + if (unlikely(ieee80211_is_beacon(fc) && RX_RES_IS_UNUSABLE(result) && rx->sdata->dev)) cfg80211_rx_unprot_mlme_mgmt(rx->sdata->dev, skb->data, skb->len); @@ -2249,7 +2249,7 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) I802_DEBUG_INC(rx->local->rx_handlers_fragments); if (skb_linearize(rx->skb)) - return RX_DROP_UNUSABLE; + return RX_DROP_U_OOM; /* * skb_linearize() might change the skb->data and @@ -2312,11 +2312,11 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) u8 pn[IEEE80211_CCMP_PN_LEN], *rpn; if (!requires_sequential_pn(rx, fc)) - return RX_DROP_UNUSABLE; + return RX_DROP_U_NONSEQ_PN; /* Prevent mixed key and fragment cache attacks */ if (entry->key_color != rx->key->color) - return RX_DROP_UNUSABLE; + return RX_DROP_U_BAD_KEY_COLOR; memcpy(pn, entry->last_pn, IEEE80211_CCMP_PN_LEN); for (i = IEEE80211_CCMP_PN_LEN - 1; i >= 0; i--) { @@ -2327,7 +2327,7 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) rpn = rx->ccm_gcm.pn; if (memcmp(pn, rpn, IEEE80211_CCMP_PN_LEN)) - return RX_DROP_UNUSABLE; + return RX_DROP_U_REPLAY; memcpy(entry->last_pn, pn, IEEE80211_CCMP_PN_LEN); } else if (entry->is_protected && (!rx->key || @@ -2338,11 +2338,11 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) * if for TKIP Michael MIC should protect us, and WEP is a * lost cause anyway. */ - return RX_DROP_UNUSABLE; + return RX_DROP_U_EXPECT_DEFRAG_PROT; } else if (entry->is_protected && rx->key && entry->key_color != rx->key->color && (status->flag & RX_FLAG_DECRYPTED)) { - return RX_DROP_UNUSABLE; + return RX_DROP_U_BAD_KEY_COLOR; } skb_pull(rx->skb, ieee80211_hdrlen(fc)); @@ -2361,7 +2361,7 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) GFP_ATOMIC))) { I802_DEBUG_INC(rx->local->rx_handlers_drop_defrag); __skb_queue_purge(&entry->skb_list); - return RX_DROP_UNUSABLE; + return RX_DROP_U_OOM; } } while ((skb = __skb_dequeue(&entry->skb_list))) { @@ -2405,7 +2405,8 @@ static int ieee80211_drop_unencrypted(struct ieee80211_rx_data *rx, __le16 fc) return 0; } -static int ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx) +static ieee80211_rx_result +ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx) { struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(rx->skb); struct ieee80211_mgmt *mgmt = (void *)rx->skb->data; @@ -2416,12 +2417,12 @@ static int ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx) * decrypted them already. */ if (status->flag & RX_FLAG_DECRYPTED) - return 0; + return RX_CONTINUE; /* drop unicast protected dual (that wasn't protected) */ if (ieee80211_is_action(fc) && mgmt->u.action.category == WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION) - return -EACCES; + return RX_DROP_U_UNPROT_DUAL; if (rx->sta && test_sta_flag(rx->sta, WLAN_STA_MFP)) { if (unlikely(!ieee80211_has_protected(fc) && @@ -2433,13 +2434,13 @@ static int ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx) * during 4-way-HS (key is installed after HS). */ if (!rx->key) - return 0; + return RX_CONTINUE; cfg80211_rx_unprot_mlme_mgmt(rx->sdata->dev, rx->skb->data, rx->skb->len); } - return -EACCES; + return RX_DROP_U_UNPROT_UCAST_MGMT; } /* BIP does not use Protected field, so need to check MMIE */ if (unlikely(ieee80211_is_multicast_robust_mgmt_frame(rx->skb) && @@ -2449,14 +2450,14 @@ static int ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx) cfg80211_rx_unprot_mlme_mgmt(rx->sdata->dev, rx->skb->data, rx->skb->len); - return -EACCES; + return RX_DROP_U_UNPROT_MCAST_MGMT; } if (unlikely(ieee80211_is_beacon(fc) && rx->key && ieee80211_get_mmie_keyidx(rx->skb) < 0)) { cfg80211_rx_unprot_mlme_mgmt(rx->sdata->dev, rx->skb->data, rx->skb->len); - return -EACCES; + return RX_DROP_U_UNPROT_BEACON; } /* * When using MFP, Action frames are not allowed prior to @@ -2464,19 +2465,19 @@ static int ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx) */ if (unlikely(ieee80211_is_action(fc) && !rx->key && ieee80211_is_robust_mgmt_frame(rx->skb))) - return -EACCES; + return RX_DROP_U_UNPROT_ACTION; /* drop unicast public action frames when using MPF */ if (is_unicast_ether_addr(mgmt->da) && ieee80211_is_public_action((void *)rx->skb->data, rx->skb->len)) - return -EACCES; + return RX_DROP_U_UNPROT_UNICAST_PUB_ACTION; } - return 0; + return RX_CONTINUE; } -static int +static ieee80211_rx_result __ieee80211_data_to_8023(struct ieee80211_rx_data *rx, bool *port_control) { struct ieee80211_sub_if_data *sdata = rx->sdata; @@ -2488,32 +2489,31 @@ __ieee80211_data_to_8023(struct ieee80211_rx_data *rx, bool *port_control) *port_control = false; if (ieee80211_has_a4(hdr->frame_control) && sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta) - return -1; + return RX_DROP_U_UNEXPECTED_VLAN_4ADDR; if (sdata->vif.type == NL80211_IFTYPE_STATION && !!sdata->u.mgd.use_4addr != !!ieee80211_has_a4(hdr->frame_control)) { - if (!sdata->u.mgd.use_4addr) - return -1; + return RX_DROP_U_UNEXPECTED_STA_4ADDR; else if (!ether_addr_equal(hdr->addr1, sdata->vif.addr)) check_port_control = true; } if (is_multicast_ether_addr(hdr->addr1) && sdata->vif.type == NL80211_IFTYPE_AP_VLAN && sdata->u.vlan.sta) - return -1; + return RX_DROP_U_UNEXPECTED_VLAN_MCAST; ret = ieee80211_data_to_8023(rx->skb, sdata->vif.addr, sdata->vif.type); if (ret < 0) - return ret; + return RX_DROP_U_INVALID_8023; ehdr = (struct ethhdr *) rx->skb->data; if (ehdr->h_proto == rx->sdata->control_port_protocol) *port_control = true; else if (check_port_control) - return -1; + return RX_DROP_U_NOT_PORT_CONTROL; - return 0; + return RX_CONTINUE; } bool ieee80211_is_our_addr(struct ieee80211_sub_if_data *sdata, @@ -2904,10 +2904,10 @@ ieee80211_rx_mesh_data(struct ieee80211_sub_if_data *sdata, struct sta_info *sta skb = NULL; if (skb_cow_head(fwd_skb, hdrlen - sizeof(struct ethhdr))) - return RX_DROP_UNUSABLE; + return RX_DROP_U_OOM; if (skb_linearize(fwd_skb)) - return RX_DROP_UNUSABLE; + return RX_DROP_U_OOM; } fwd_hdr = skb_push(fwd_skb, hdrlen - sizeof(struct ethhdr)); @@ -3003,7 +3003,7 @@ __ieee80211_rx_h_amsdu(struct ieee80211_rx_data *rx, u8 data_offset) rx->sdata->vif.addr, rx->sdata->vif.type, data_offset, true)) - return RX_DROP_UNUSABLE; + return RX_DROP_U_BAD_AMSDU; if (rx->sta->amsdu_mesh_control < 0) { s8 valid = -1; @@ -3078,21 +3078,21 @@ ieee80211_rx_h_amsdu(struct ieee80211_rx_data *rx) switch (rx->sdata->vif.type) { case NL80211_IFTYPE_AP_VLAN: if (!rx->sdata->u.vlan.sta) - return RX_DROP_UNUSABLE; + return RX_DROP_U_BAD_4ADDR; break; case NL80211_IFTYPE_STATION: if (!rx->sdata->u.mgd.use_4addr) - return RX_DROP_UNUSABLE; + return RX_DROP_U_BAD_4ADDR; break; case NL80211_IFTYPE_MESH_POINT: break; default: - return RX_DROP_UNUSABLE; + return RX_DROP_U_BAD_4ADDR; } } if (is_multicast_ether_addr(hdr->addr1) || !rx->sta) - return RX_DROP_UNUSABLE; + return RX_DROP_U_BAD_AMSDU; if (rx->key) { /* @@ -3105,7 +3105,7 @@ ieee80211_rx_h_amsdu(struct ieee80211_rx_data *rx) case WLAN_CIPHER_SUITE_WEP40: case WLAN_CIPHER_SUITE_WEP104: case WLAN_CIPHER_SUITE_TKIP: - return RX_DROP_UNUSABLE; + return RX_DROP_U_BAD_AMSDU_CIPHER; default: break; } @@ -3124,7 +3124,6 @@ ieee80211_rx_h_data(struct ieee80211_rx_data *rx) __le16 fc = hdr->frame_control; ieee80211_rx_result res; bool port_control; - int err; if (unlikely(!ieee80211_is_data(hdr->frame_control))) return RX_CONTINUE; @@ -3145,9 +3144,9 @@ ieee80211_rx_h_data(struct ieee80211_rx_data *rx) return RX_DROP_MONITOR; } - err = __ieee80211_data_to_8023(rx, &port_control); - if (unlikely(err)) - return RX_DROP_UNUSABLE; + res = __ieee80211_data_to_8023(rx, &port_control); + if (unlikely(res != RX_CONTINUE)) + return res; res = ieee80211_rx_mesh_data(rx->sdata, rx->sta, rx->skb); if (res != RX_CONTINUE) @@ -3379,7 +3378,7 @@ ieee80211_rx_h_mgmt_check(struct ieee80211_rx_data *rx) /* drop too small action frames */ if (ieee80211_is_action(mgmt->frame_control) && rx->skb->len < IEEE80211_MIN_ACTION_SIZE) - return RX_DROP_UNUSABLE; + return RX_DROP_U_RUNT_ACTION; if (rx->sdata->vif.type == NL80211_IFTYPE_AP && ieee80211_is_beacon(mgmt->frame_control) && @@ -3400,10 +3399,7 @@ ieee80211_rx_h_mgmt_check(struct ieee80211_rx_data *rx) rx->flags |= IEEE80211_RX_BEACON_REPORTED; } - if (ieee80211_drop_unencrypted_mgmt(rx)) - return RX_DROP_UNUSABLE; - - return RX_CONTINUE; + return ieee80211_drop_unencrypted_mgmt(rx); } static bool @@ -3473,7 +3469,7 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx) if (!rx->sta && mgmt->u.action.category != WLAN_CATEGORY_PUBLIC && mgmt->u.action.category != WLAN_CATEGORY_SELF_PROTECTED && mgmt->u.action.category != WLAN_CATEGORY_SPECTRUM_MGMT) - return RX_DROP_UNUSABLE; + return RX_DROP_U_ACTION_UNKNOWN_SRC; switch (mgmt->u.action.category) { case WLAN_CATEGORY_HT: @@ -3878,7 +3874,7 @@ ieee80211_rx_h_action_return(struct ieee80211_rx_data *rx) /* do not return rejected action frames */ if (mgmt->u.action.category & 0x80) - return RX_DROP_UNUSABLE; + return RX_DROP_U_REJECTED_ACTION_RESPONSE; nskb = skb_copy_expand(rx->skb, local->hw.extra_tx_headroom, 0, GFP_ATOMIC); @@ -4669,7 +4665,7 @@ void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata) struct ieee80211_local *local = sdata->local; struct sta_info *sta; - lockdep_assert_held(&local->sta_mtx); + lockdep_assert_wiphy(local->hw.wiphy); list_for_each_entry(sta, &local->sta_list, list) { if (sdata != sta->sdata && @@ -4683,9 +4679,9 @@ void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata) { struct ieee80211_local *local = sdata->local; - mutex_lock(&local->sta_mtx); + lockdep_assert_wiphy(local->hw.wiphy); + __ieee80211_check_fast_rx_iface(sdata); - mutex_unlock(&local->sta_mtx); } static void ieee80211_rx_8023(struct ieee80211_rx_data *rx, diff --git a/net/mac80211/s1g.c b/net/mac80211/s1g.c index c1f964e9991c..d4ed0c0a335c 100644 --- a/net/mac80211/s1g.c +++ b/net/mac80211/s1g.c @@ -2,6 +2,7 @@ /* * S1G handling * Copyright(c) 2020 Adapt-IP + * Copyright (C) 2023 Intel Corporation */ #include <linux/ieee80211.h> #include <net/mac80211.h> @@ -153,11 +154,11 @@ void ieee80211_s1g_rx_twt_action(struct ieee80211_sub_if_data *sdata, struct ieee80211_local *local = sdata->local; struct sta_info *sta; - mutex_lock(&local->sta_mtx); + lockdep_assert_wiphy(local->hw.wiphy); sta = sta_info_get_bss(sdata, mgmt->sa); if (!sta) - goto out; + return; switch (mgmt->u.action.u.s1g.action_code) { case WLAN_S1G_TWT_SETUP: @@ -169,9 +170,6 @@ void ieee80211_s1g_rx_twt_action(struct ieee80211_sub_if_data *sdata, default: break; } - -out: - mutex_unlock(&local->sta_mtx); } void ieee80211_s1g_status_twt_action(struct ieee80211_sub_if_data *sdata, @@ -181,11 +179,11 @@ void ieee80211_s1g_status_twt_action(struct ieee80211_sub_if_data *sdata, struct ieee80211_local *local = sdata->local; struct sta_info *sta; - mutex_lock(&local->sta_mtx); + lockdep_assert_wiphy(local->hw.wiphy); sta = sta_info_get_bss(sdata, mgmt->da); if (!sta) - goto out; + return; switch (mgmt->u.action.u.s1g.action_code) { case WLAN_S1G_TWT_SETUP: @@ -195,7 +193,4 @@ void ieee80211_s1g_status_twt_action(struct ieee80211_sub_if_data *sdata, default: break; } - -out: - mutex_unlock(&local->sta_mtx); } diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index 0805aa8603c6..24fa06105378 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -187,12 +187,6 @@ ieee80211_bss_info_update(struct ieee80211_local *local, else if (ieee80211_hw_check(&local->hw, SIGNAL_UNSPEC)) bss_meta.signal = (rx_status->signal * 100) / local->hw.max_signal; - bss_meta.scan_width = NL80211_BSS_CHAN_WIDTH_20; - if (rx_status->bw == RATE_INFO_BW_5) - bss_meta.scan_width = NL80211_BSS_CHAN_WIDTH_5; - else if (rx_status->bw == RATE_INFO_BW_10) - bss_meta.scan_width = NL80211_BSS_CHAN_WIDTH_10; - bss_meta.chan = channel; rcu_read_lock(); @@ -274,8 +268,8 @@ void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb) * the beacon/proberesp rx gives us an opportunity to upgrade * to active scan */ - set_bit(SCAN_BEACON_DONE, &local->scanning); - ieee80211_queue_delayed_work(&local->hw, &local->scan_work, 0); + set_bit(SCAN_BEACON_DONE, &local->scanning); + wiphy_delayed_work_queue(local->hw.wiphy, &local->scan_work, 0); } if (ieee80211_is_probe_resp(mgmt->frame_control)) { @@ -315,22 +309,11 @@ void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb) ieee80211_rx_bss_put(local, bss); } -static void -ieee80211_prepare_scan_chandef(struct cfg80211_chan_def *chandef, - enum nl80211_bss_scan_width scan_width) +static void ieee80211_prepare_scan_chandef(struct cfg80211_chan_def *chandef) { memset(chandef, 0, sizeof(*chandef)); - switch (scan_width) { - case NL80211_BSS_CHAN_WIDTH_5: - chandef->width = NL80211_CHAN_WIDTH_5; - break; - case NL80211_BSS_CHAN_WIDTH_10: - chandef->width = NL80211_CHAN_WIDTH_10; - break; - default: - chandef->width = NL80211_CHAN_WIDTH_20_NOHT; - break; - } + + chandef->width = NL80211_CHAN_WIDTH_20_NOHT; } /* return false if no more work */ @@ -344,7 +327,7 @@ static bool ieee80211_prep_hw_scan(struct ieee80211_sub_if_data *sdata) u32 flags = 0; req = rcu_dereference_protected(local->scan_req, - lockdep_is_held(&local->mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); if (test_bit(SCAN_HW_CANCELLED, &local->scanning)) return false; @@ -378,7 +361,7 @@ static bool ieee80211_prep_hw_scan(struct ieee80211_sub_if_data *sdata) } local->hw_scan_req->req.n_channels = n_chans; - ieee80211_prepare_scan_chandef(&chandef, req->scan_width); + ieee80211_prepare_scan_chandef(&chandef); if (req->flags & NL80211_SCAN_FLAG_MIN_PREQ_CONTENT) flags |= IEEE80211_PROBE_FLAG_MIN_CONTENT; @@ -409,7 +392,7 @@ static void __ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted) struct ieee80211_sub_if_data *scan_sdata; struct ieee80211_sub_if_data *sdata; - lockdep_assert_held(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); /* * It's ok to abort a not-yet-running scan (that @@ -424,7 +407,7 @@ static void __ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted) return; scan_sdata = rcu_dereference_protected(local->scan_sdata, - lockdep_is_held(&local->mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); if (hw_scan && !aborted && !ieee80211_hw_check(&local->hw, SINGLE_SCAN_ON_ALL_BANDS) && @@ -433,7 +416,7 @@ static void __ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted) rc = drv_hw_scan(local, rcu_dereference_protected(local->scan_sdata, - lockdep_is_held(&local->mtx)), + lockdep_is_held(&local->hw.wiphy->mtx)), local->hw_scan_req); if (rc == 0) @@ -450,7 +433,7 @@ static void __ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted) local->hw_scan_req = NULL; scan_req = rcu_dereference_protected(local->scan_req, - lockdep_is_held(&local->mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); RCU_INIT_POINTER(local->scan_req, NULL); RCU_INIT_POINTER(local->scan_sdata, NULL); @@ -505,7 +488,7 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw, memcpy(&local->scan_info, info, sizeof(*info)); - ieee80211_queue_delayed_work(&local->hw, &local->scan_work, 0); + wiphy_delayed_work_queue(local->hw.wiphy, &local->scan_work, 0); } EXPORT_SYMBOL(ieee80211_scan_completed); @@ -545,8 +528,7 @@ static int ieee80211_start_sw_scan(struct ieee80211_local *local, /* We need to set power level at maximum rate for scanning. */ ieee80211_hw_config(local, 0); - ieee80211_queue_delayed_work(&local->hw, - &local->scan_work, 0); + wiphy_delayed_work_queue(local->hw.wiphy, &local->scan_work, 0); return 0; } @@ -556,20 +538,18 @@ static bool __ieee80211_can_leave_ch(struct ieee80211_sub_if_data *sdata) struct ieee80211_local *local = sdata->local; struct ieee80211_sub_if_data *sdata_iter; + lockdep_assert_wiphy(local->hw.wiphy); + if (!ieee80211_is_radar_required(local)) return true; if (!regulatory_pre_cac_allowed(local->hw.wiphy)) return false; - mutex_lock(&local->iflist_mtx); list_for_each_entry(sdata_iter, &local->interfaces, list) { - if (sdata_iter->wdev.cac_started) { - mutex_unlock(&local->iflist_mtx); + if (sdata_iter->wdev.cac_started) return false; - } } - mutex_unlock(&local->iflist_mtx); return true; } @@ -592,7 +572,7 @@ static bool ieee80211_can_scan(struct ieee80211_local *local, void ieee80211_run_deferred_scan(struct ieee80211_local *local) { - lockdep_assert_held(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); if (!local->scan_req || local->scanning) return; @@ -600,11 +580,11 @@ void ieee80211_run_deferred_scan(struct ieee80211_local *local) if (!ieee80211_can_scan(local, rcu_dereference_protected( local->scan_sdata, - lockdep_is_held(&local->mtx)))) + lockdep_is_held(&local->hw.wiphy->mtx)))) return; - ieee80211_queue_delayed_work(&local->hw, &local->scan_work, - round_jiffies_relative(0)); + wiphy_delayed_work_queue(local->hw.wiphy, &local->scan_work, + round_jiffies_relative(0)); } static void ieee80211_send_scan_probe_req(struct ieee80211_sub_if_data *sdata, @@ -645,7 +625,7 @@ static void ieee80211_scan_state_send_probe(struct ieee80211_local *local, u32 flags = 0, tx_flags; scan_req = rcu_dereference_protected(local->scan_req, - lockdep_is_held(&local->mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); tx_flags = IEEE80211_TX_INTFL_OFFCHAN_TX_OK; if (scan_req->no_cck) @@ -656,7 +636,7 @@ static void ieee80211_scan_state_send_probe(struct ieee80211_local *local, flags |= IEEE80211_PROBE_FLAG_RANDOM_SN; sdata = rcu_dereference_protected(local->scan_sdata, - lockdep_is_held(&local->mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); for (i = 0; i < scan_req->n_ssids; i++) ieee80211_send_scan_probe_req( @@ -681,7 +661,7 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata, bool hw_scan = local->ops->hw_scan; int rc; - lockdep_assert_held(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); if (local->scan_req) return -EBUSY; @@ -795,8 +775,8 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata, } /* Now, just wait a bit and we are all done! */ - ieee80211_queue_delayed_work(&local->hw, &local->scan_work, - next_delay); + wiphy_delayed_work_queue(local->hw.wiphy, &local->scan_work, + next_delay); return 0; } else { /* Do normal software scan */ @@ -861,12 +841,13 @@ static void ieee80211_scan_state_decision(struct ieee80211_local *local, enum mac80211_scan_state next_scan_state; struct cfg80211_scan_request *scan_req; + lockdep_assert_wiphy(local->hw.wiphy); + /* * check if at least one STA interface is associated, * check if at least one STA interface has pending tx frames * and grab the lowest used beacon interval */ - mutex_lock(&local->iflist_mtx); list_for_each_entry(sdata, &local->interfaces, list) { if (!ieee80211_sdata_running(sdata)) continue; @@ -882,10 +863,9 @@ static void ieee80211_scan_state_decision(struct ieee80211_local *local, } } } - mutex_unlock(&local->iflist_mtx); scan_req = rcu_dereference_protected(local->scan_req, - lockdep_is_held(&local->mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); next_chan = scan_req->channels[local->scan_channel_idx]; @@ -922,11 +902,10 @@ static void ieee80211_scan_state_set_channel(struct ieee80211_local *local, { int skip; struct ieee80211_channel *chan; - enum nl80211_bss_scan_width oper_scan_width; struct cfg80211_scan_request *scan_req; scan_req = rcu_dereference_protected(local->scan_req, - lockdep_is_held(&local->mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); skip = 0; chan = scan_req->channels[local->scan_channel_idx]; @@ -936,42 +915,21 @@ static void ieee80211_scan_state_set_channel(struct ieee80211_local *local, local->scan_chandef.freq1_offset = chan->freq_offset; local->scan_chandef.center_freq2 = 0; - /* For scanning on the S1G band, ignore scan_width (which is constant - * across all channels) for now since channel width is specific to each - * channel. Detect the required channel width here and likely revisit - * later. Maybe scan_width could be used to build the channel scan list? + /* For scanning on the S1G band, detect the channel width according to + * the channel being scanned. */ if (chan->band == NL80211_BAND_S1GHZ) { local->scan_chandef.width = ieee80211_s1g_channel_width(chan); goto set_channel; } - switch (scan_req->scan_width) { - case NL80211_BSS_CHAN_WIDTH_5: - local->scan_chandef.width = NL80211_CHAN_WIDTH_5; - break; - case NL80211_BSS_CHAN_WIDTH_10: - local->scan_chandef.width = NL80211_CHAN_WIDTH_10; - break; - default: - case NL80211_BSS_CHAN_WIDTH_20: - /* If scanning on oper channel, use whatever channel-type - * is currently in use. - */ - oper_scan_width = cfg80211_chandef_to_scan_width( - &local->_oper_chandef); - if (chan == local->_oper_chandef.chan && - oper_scan_width == scan_req->scan_width) - local->scan_chandef = local->_oper_chandef; - else - local->scan_chandef.width = NL80211_CHAN_WIDTH_20_NOHT; - break; - case NL80211_BSS_CHAN_WIDTH_1: - case NL80211_BSS_CHAN_WIDTH_2: - /* shouldn't get here, S1G handled above */ - WARN_ON(1); - break; - } + /* If scanning on oper channel, use whatever channel-type + * is currently in use. + */ + if (chan == local->_oper_chandef.chan) + local->scan_chandef = local->_oper_chandef; + else + local->scan_chandef.width = NL80211_CHAN_WIDTH_20_NOHT; set_channel: if (ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL)) @@ -1043,7 +1001,7 @@ static void ieee80211_scan_state_resume(struct ieee80211_local *local, local->next_scan_state = SCAN_SET_CHANNEL; } -void ieee80211_scan_work(struct work_struct *work) +void ieee80211_scan_work(struct wiphy *wiphy, struct wiphy_work *work) { struct ieee80211_local *local = container_of(work, struct ieee80211_local, scan_work.work); @@ -1052,7 +1010,7 @@ void ieee80211_scan_work(struct work_struct *work) unsigned long next_delay = 0; bool aborted; - mutex_lock(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); if (!ieee80211_can_run_worker(local)) { aborted = true; @@ -1060,9 +1018,9 @@ void ieee80211_scan_work(struct work_struct *work) } sdata = rcu_dereference_protected(local->scan_sdata, - lockdep_is_held(&local->mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); scan_req = rcu_dereference_protected(local->scan_req, - lockdep_is_held(&local->mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); /* When scanning on-channel, the first-callback means completed. */ if (test_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning)) { @@ -1076,7 +1034,7 @@ void ieee80211_scan_work(struct work_struct *work) } if (!sdata || !scan_req) - goto out; + return; if (!local->scanning) { int rc; @@ -1085,13 +1043,12 @@ void ieee80211_scan_work(struct work_struct *work) RCU_INIT_POINTER(local->scan_sdata, NULL); rc = __ieee80211_start_scan(sdata, scan_req); - if (rc) { - /* need to complete scan in cfg80211 */ - rcu_assign_pointer(local->scan_req, scan_req); - aborted = true; - goto out_complete; - } else - goto out; + if (!rc) + return; + /* need to complete scan in cfg80211 */ + rcu_assign_pointer(local->scan_req, scan_req); + aborted = true; + goto out_complete; } clear_bit(SCAN_BEACON_WAIT, &local->scanning); @@ -1137,38 +1094,32 @@ void ieee80211_scan_work(struct work_struct *work) } } while (next_delay == 0); - ieee80211_queue_delayed_work(&local->hw, &local->scan_work, next_delay); - goto out; + wiphy_delayed_work_queue(local->hw.wiphy, &local->scan_work, + next_delay); + return; out_complete: __ieee80211_scan_completed(&local->hw, aborted); -out: - mutex_unlock(&local->mtx); } int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata, struct cfg80211_scan_request *req) { - int res; - - mutex_lock(&sdata->local->mtx); - res = __ieee80211_start_scan(sdata, req); - mutex_unlock(&sdata->local->mtx); + lockdep_assert_wiphy(sdata->local->hw.wiphy); - return res; + return __ieee80211_start_scan(sdata, req); } 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) + unsigned int n_channels) { struct ieee80211_local *local = sdata->local; int ret = -EBUSY, i, n_ch = 0; enum nl80211_band band; - mutex_lock(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); /* busy scanning */ if (local->scan_req) @@ -1219,13 +1170,11 @@ int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata, local->int_scan_req->ssids = &local->scan_ssid; local->int_scan_req->n_ssids = 1; - local->int_scan_req->scan_width = scan_width; memcpy(local->int_scan_req->ssids[0].ssid, ssid, IEEE80211_MAX_SSID_LEN); local->int_scan_req->ssids[0].ssid_len = ssid_len; ret = __ieee80211_start_scan(sdata, sdata->local->int_scan_req); unlock: - mutex_unlock(&local->mtx); return ret; } @@ -1252,9 +1201,8 @@ void ieee80211_scan_cancel(struct ieee80211_local *local) * after the scan was completed/aborted. */ - mutex_lock(&local->mtx); if (!local->scan_req) - goto out; + return; /* * We have a scan running and the driver already reported completion, @@ -1264,7 +1212,7 @@ void ieee80211_scan_cancel(struct ieee80211_local *local) if (test_bit(SCAN_HW_SCANNING, &local->scanning) && test_bit(SCAN_COMPLETED, &local->scanning)) { set_bit(SCAN_HW_CANCELLED, &local->scanning); - goto out; + return; } if (test_bit(SCAN_HW_SCANNING, &local->scanning)) { @@ -1276,21 +1224,14 @@ void ieee80211_scan_cancel(struct ieee80211_local *local) if (local->ops->cancel_hw_scan) drv_cancel_hw_scan(local, rcu_dereference_protected(local->scan_sdata, - lockdep_is_held(&local->mtx))); - goto out; + lockdep_is_held(&local->hw.wiphy->mtx))); + return; } - /* - * If the work is currently running, it must be blocked on - * the mutex, but we'll set scan_sdata = NULL and it'll - * simply exit once it acquires the mutex. - */ - cancel_delayed_work(&local->scan_work); + wiphy_delayed_work_cancel(local->hw.wiphy, &local->scan_work); /* and clean up */ memset(&local->scan_info, 0, sizeof(local->scan_info)); __ieee80211_scan_completed(&local->hw, true); -out: - mutex_unlock(&local->mtx); } int __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, @@ -1305,9 +1246,9 @@ int __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, u8 *ie; u32 flags = 0; - iebufsz = local->scan_ies_len + req->ie_len; + lockdep_assert_wiphy(local->hw.wiphy); - lockdep_assert_held(&local->mtx); + iebufsz = local->scan_ies_len + req->ie_len; if (!local->ops->sched_scan_start) return -ENOTSUPP; @@ -1329,7 +1270,7 @@ int __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, goto out; } - ieee80211_prepare_scan_chandef(&chandef, req->scan_width); + ieee80211_prepare_scan_chandef(&chandef); ieee80211_build_preq_ies(sdata, ie, num_bands * iebufsz, &sched_scan_ies, req->ie, @@ -1358,19 +1299,13 @@ int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, struct cfg80211_sched_scan_request *req) { struct ieee80211_local *local = sdata->local; - int ret; - mutex_lock(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); - if (rcu_access_pointer(local->sched_scan_sdata)) { - mutex_unlock(&local->mtx); + if (rcu_access_pointer(local->sched_scan_sdata)) return -EBUSY; - } - - ret = __ieee80211_request_sched_scan_start(sdata, req); - mutex_unlock(&local->mtx); - return ret; + return __ieee80211_request_sched_scan_start(sdata, req); } int ieee80211_request_sched_scan_stop(struct ieee80211_local *local) @@ -1378,25 +1313,21 @@ int ieee80211_request_sched_scan_stop(struct ieee80211_local *local) struct ieee80211_sub_if_data *sched_scan_sdata; int ret = -ENOENT; - mutex_lock(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); - if (!local->ops->sched_scan_stop) { - ret = -ENOTSUPP; - goto out; - } + if (!local->ops->sched_scan_stop) + return -ENOTSUPP; /* We don't want to restart sched scan anymore. */ RCU_INIT_POINTER(local->sched_scan_req, NULL); sched_scan_sdata = rcu_dereference_protected(local->sched_scan_sdata, - lockdep_is_held(&local->mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); if (sched_scan_sdata) { ret = drv_sched_scan_stop(local, sched_scan_sdata); if (!ret) RCU_INIT_POINTER(local->sched_scan_sdata, NULL); } -out: - mutex_unlock(&local->mtx); return ret; } @@ -1413,24 +1344,21 @@ EXPORT_SYMBOL(ieee80211_sched_scan_results); void ieee80211_sched_scan_end(struct ieee80211_local *local) { - mutex_lock(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); - if (!rcu_access_pointer(local->sched_scan_sdata)) { - mutex_unlock(&local->mtx); + if (!rcu_access_pointer(local->sched_scan_sdata)) return; - } RCU_INIT_POINTER(local->sched_scan_sdata, NULL); /* If sched scan was aborted by the driver. */ RCU_INIT_POINTER(local->sched_scan_req, NULL); - mutex_unlock(&local->mtx); - - cfg80211_sched_scan_stopped(local->hw.wiphy, 0); + cfg80211_sched_scan_stopped_locked(local->hw.wiphy, 0); } -void ieee80211_sched_scan_stopped_work(struct work_struct *work) +void ieee80211_sched_scan_stopped_work(struct wiphy *wiphy, + struct wiphy_work *work) { struct ieee80211_local *local = container_of(work, struct ieee80211_local, @@ -1453,6 +1381,6 @@ void ieee80211_sched_scan_stopped(struct ieee80211_hw *hw) if (local->in_reconfig) return; - schedule_work(&local->sched_scan_stopped_work); + wiphy_work_queue(hw->wiphy, &local->sched_scan_stopped_work); } EXPORT_SYMBOL(ieee80211_sched_scan_stopped); diff --git a/net/mac80211/spectmgmt.c b/net/mac80211/spectmgmt.c index 871cdac2d0f4..55959b0b24c5 100644 --- a/net/mac80211/spectmgmt.c +++ b/net/mac80211/spectmgmt.c @@ -9,7 +9,7 @@ * Copyright 2007, Michael Wu <flamingice@sourmilk.net> * Copyright 2007-2008, Intel Corporation * Copyright 2008, Johannes Berg <johannes@sipsolutions.net> - * Copyright (C) 2018, 2020, 2022 Intel Corporation + * Copyright (C) 2018, 2020, 2022-2023 Intel Corporation */ #include <linux/ieee80211.h> @@ -33,12 +33,14 @@ int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata, struct cfg80211_chan_def new_vht_chandef = {}; const struct ieee80211_sec_chan_offs_ie *sec_chan_offs; const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie; + const struct ieee80211_bandwidth_indication *bwi; int secondary_channel_offset = -1; memset(csa_ie, 0, sizeof(*csa_ie)); sec_chan_offs = elems->sec_chan_offs; wide_bw_chansw_ie = elems->wide_bw_chansw_ie; + bwi = elems->bandwidth_indication; if (conn_flags & (IEEE80211_CONN_DISABLE_HT | IEEE80211_CONN_DISABLE_40MHZ)) { @@ -132,7 +134,14 @@ int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata, break; } - if (wide_bw_chansw_ie) { + if (bwi) { + /* start with the CSA one */ + new_vht_chandef = csa_ie->chandef; + /* and update the width accordingly */ + /* FIXME: support 160/320 */ + ieee80211_chandef_eht_oper(&bwi->info, true, true, + &new_vht_chandef); + } else if (wide_bw_chansw_ie) { u8 new_seg1 = wide_bw_chansw_ie->new_center_freq_seg1; struct ieee80211_vht_operation vht_oper = { .chan_width = diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 7751f8ba960e..ba36fc29e532 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -88,7 +88,6 @@ static const struct rhashtable_params link_sta_rht_params = { .max_size = CONFIG_MAC80211_STA_HASH_MAX_SIZE, }; -/* Caller must hold local->sta_mtx */ static int sta_info_hash_del(struct ieee80211_local *local, struct sta_info *sta) { @@ -99,19 +98,19 @@ static int sta_info_hash_del(struct ieee80211_local *local, static int link_sta_info_hash_add(struct ieee80211_local *local, struct link_sta_info *link_sta) { - lockdep_assert_held(&local->sta_mtx); + lockdep_assert_wiphy(local->hw.wiphy); + return rhltable_insert(&local->link_sta_hash, - &link_sta->link_hash_node, - link_sta_rht_params); + &link_sta->link_hash_node, link_sta_rht_params); } static int link_sta_info_hash_del(struct ieee80211_local *local, struct link_sta_info *link_sta) { - lockdep_assert_held(&local->sta_mtx); + lockdep_assert_wiphy(local->hw.wiphy); + return rhltable_remove(&local->link_sta_hash, - &link_sta->link_hash_node, - link_sta_rht_params); + &link_sta->link_hash_node, link_sta_rht_params); } static void __cleanup_single_sta(struct sta_info *sta) @@ -331,7 +330,7 @@ struct sta_info *sta_info_get_by_idx(struct ieee80211_sub_if_data *sdata, int i = 0; list_for_each_entry_rcu(sta, &local->sta_list, list, - lockdep_is_held(&local->sta_mtx)) { + lockdep_is_held(&local->hw.wiphy->mtx)) { if (sdata != sta->sdata) continue; if (i < idx) { @@ -355,10 +354,9 @@ static void sta_remove_link(struct sta_info *sta, unsigned int link_id, struct sta_link_alloc *alloc = NULL; struct link_sta_info *link_sta; - link_sta = rcu_access_pointer(sta->link[link_id]); - if (link_sta != &sta->deflink) - lockdep_assert_held(&sta->local->sta_mtx); + lockdep_assert_wiphy(sta->local->hw.wiphy); + link_sta = rcu_access_pointer(sta->link[link_id]); if (WARN_ON(!link_sta)) return; @@ -437,7 +435,6 @@ void sta_info_free(struct ieee80211_local *local, struct sta_info *sta) kfree(sta); } -/* Caller must hold local->sta_mtx */ static int sta_info_hash_add(struct ieee80211_local *local, struct sta_info *sta) { @@ -556,8 +553,7 @@ __sta_info_alloc(struct ieee80211_sub_if_data *sdata, spin_lock_init(&sta->lock); spin_lock_init(&sta->ps_lock); INIT_WORK(&sta->drv_deliver_wk, sta_deliver_ps_frames); - INIT_WORK(&sta->ampdu_mlme.work, ieee80211_ba_session_work); - mutex_init(&sta->ampdu_mlme.mtx); + wiphy_work_init(&sta->ampdu_mlme.work, ieee80211_ba_session_work); #ifdef CONFIG_MAC80211_MESH if (ieee80211_vif_is_mesh(&sdata->vif)) { sta->mesh = kzalloc(sizeof(*sta->mesh), gfp); @@ -717,6 +713,8 @@ static int sta_info_insert_check(struct sta_info *sta) { struct ieee80211_sub_if_data *sdata = sta->sdata; + lockdep_assert_wiphy(sdata->local->hw.wiphy); + /* * Can't be a WARN_ON because it can be triggered through a race: * something inserts a STA (on one CPU) without holding the RTNL @@ -734,7 +732,6 @@ static int sta_info_insert_check(struct sta_info *sta) * for correctness. */ rcu_read_lock(); - lockdep_assert_held(&sdata->local->sta_mtx); if (ieee80211_hw_check(&sdata->local->hw, NEEDS_UNIQUE_STA_ADDR) && ieee80211_find_sta_by_ifaddr(&sdata->local->hw, sta->addr, NULL)) { rcu_read_unlock(); @@ -808,11 +805,6 @@ ieee80211_recalc_p2p_go_ps_allowed(struct ieee80211_sub_if_data *sdata) } } -/* - * should be called with sta_mtx locked - * this function replaces the mutex lock - * with a RCU lock - */ static int sta_info_insert_finish(struct sta_info *sta) __acquires(RCU) { struct ieee80211_local *local = sta->local; @@ -820,7 +812,7 @@ static int sta_info_insert_finish(struct sta_info *sta) __acquires(RCU) struct station_info *sinfo = NULL; int err = 0; - lockdep_assert_held(&local->sta_mtx); + lockdep_assert_wiphy(local->hw.wiphy); /* check if STA exists already */ if (sta_info_get_bss(sdata, sta->sta.addr)) { @@ -884,7 +876,7 @@ static int sta_info_insert_finish(struct sta_info *sta) __acquires(RCU) struct link_sta_info *link_sta; link_sta = rcu_dereference_protected(sta->link[i], - lockdep_is_held(&local->sta_mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); if (!link_sta) continue; @@ -906,7 +898,6 @@ static int sta_info_insert_finish(struct sta_info *sta) __acquires(RCU) /* move reference to rcu-protected */ rcu_read_lock(); - mutex_unlock(&local->sta_mtx); if (ieee80211_vif_is_mesh(&sdata->vif)) mesh_accept_plinks_update(sdata); @@ -922,7 +913,6 @@ static int sta_info_insert_finish(struct sta_info *sta) __acquires(RCU) synchronize_net(); out_cleanup: cleanup_single_sta(sta); - mutex_unlock(&local->sta_mtx); kfree(sinfo); rcu_read_lock(); return err; @@ -934,13 +924,11 @@ int sta_info_insert_rcu(struct sta_info *sta) __acquires(RCU) int err; might_sleep(); - - mutex_lock(&local->sta_mtx); + lockdep_assert_wiphy(local->hw.wiphy); err = sta_info_insert_check(sta); if (err) { sta_info_free(local, sta); - mutex_unlock(&local->sta_mtx); rcu_read_lock(); return err; } @@ -1219,7 +1207,7 @@ static int __must_check __sta_info_destroy_part1(struct sta_info *sta) local = sta->local; sdata = sta->sdata; - lockdep_assert_held(&local->sta_mtx); + lockdep_assert_wiphy(local->hw.wiphy); /* * Before removing the station from the driver and @@ -1244,7 +1232,7 @@ static int __must_check __sta_info_destroy_part1(struct sta_info *sta) continue; link_sta = rcu_dereference_protected(sta->link[i], - lockdep_is_held(&local->sta_mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); link_sta_info_hash_del(local, link_sta); } @@ -1397,8 +1385,22 @@ static void __sta_info_destroy_part2(struct sta_info *sta, bool recalc) * after _part1 and before _part2! */ + /* + * There's a potential race in _part1 where we set WLAN_STA_BLOCK_BA + * but someone might have just gotten past a check, and not yet into + * queuing the work/creating the data/etc. + * + * Do another round of destruction so that the worker is certainly + * canceled before we later free the station. + * + * Since this is after synchronize_rcu()/synchronize_net() we're now + * certain that nobody can actually hold a reference to the STA and + * be calling e.g. ieee80211_start_tx_ba_session(). + */ + ieee80211_sta_tear_down_BA_sessions(sta, AGG_STOP_DESTROY_STA); + might_sleep(); - lockdep_assert_held(&local->sta_mtx); + lockdep_assert_wiphy(local->hw.wiphy); if (sta->sta_state == IEEE80211_STA_AUTHORIZED) { ret = _sta_info_move_state(sta, IEEE80211_STA_ASSOC, recalc); @@ -1474,28 +1476,22 @@ int __must_check __sta_info_destroy(struct sta_info *sta) int sta_info_destroy_addr(struct ieee80211_sub_if_data *sdata, const u8 *addr) { struct sta_info *sta; - int ret; - mutex_lock(&sdata->local->sta_mtx); - sta = sta_info_get(sdata, addr); - ret = __sta_info_destroy(sta); - mutex_unlock(&sdata->local->sta_mtx); + lockdep_assert_wiphy(sdata->local->hw.wiphy); - return ret; + sta = sta_info_get(sdata, addr); + return __sta_info_destroy(sta); } int sta_info_destroy_addr_bss(struct ieee80211_sub_if_data *sdata, const u8 *addr) { struct sta_info *sta; - int ret; - mutex_lock(&sdata->local->sta_mtx); - sta = sta_info_get_bss(sdata, addr); - ret = __sta_info_destroy(sta); - mutex_unlock(&sdata->local->sta_mtx); + lockdep_assert_wiphy(sdata->local->hw.wiphy); - return ret; + sta = sta_info_get_bss(sdata, addr); + return __sta_info_destroy(sta); } static void sta_info_cleanup(struct timer_list *t) @@ -1535,7 +1531,6 @@ int sta_info_init(struct ieee80211_local *local) } spin_lock_init(&local->tim_lock); - mutex_init(&local->sta_mtx); INIT_LIST_HEAD(&local->sta_list); timer_setup(&local->sta_cleanup, sta_info_cleanup, 0); @@ -1558,11 +1553,11 @@ int __sta_info_flush(struct ieee80211_sub_if_data *sdata, bool vlans) int ret = 0; might_sleep(); + lockdep_assert_wiphy(local->hw.wiphy); WARN_ON(vlans && sdata->vif.type != NL80211_IFTYPE_AP); WARN_ON(vlans && !sdata->bss); - mutex_lock(&local->sta_mtx); list_for_each_entry_safe(sta, tmp, &local->sta_list, list) { if (sdata == sta->sdata || (vlans && sdata->bss == sta->sdata->bss)) { @@ -1586,7 +1581,6 @@ int __sta_info_flush(struct ieee80211_sub_if_data *sdata, bool vlans) if (!support_p2p_ps) ieee80211_recalc_p2p_go_ps_allowed(sdata); } - mutex_unlock(&local->sta_mtx); return ret; } @@ -1597,7 +1591,7 @@ void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata, struct ieee80211_local *local = sdata->local; struct sta_info *sta, *tmp; - mutex_lock(&local->sta_mtx); + lockdep_assert_wiphy(local->hw.wiphy); list_for_each_entry_safe(sta, tmp, &local->sta_list, list) { unsigned long last_active = ieee80211_sta_last_active(sta); @@ -1616,8 +1610,6 @@ void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata, WARN_ON(__sta_info_destroy(sta)); } } - - mutex_unlock(&local->sta_mtx); } struct ieee80211_sta *ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, @@ -2711,7 +2703,8 @@ void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo, } if (!(sinfo->filled & BIT_ULL(NL80211_STA_INFO_TX_BITRATE)) && - !sta->sta.valid_links) { + !sta->sta.valid_links && + ieee80211_rate_valid(&sta->deflink.tx_stats.last_rate)) { sta_set_rate_info_tx(sta, &sta->deflink.tx_stats.last_rate, &sinfo->txrate); sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); @@ -2872,7 +2865,9 @@ int ieee80211_sta_allocate_link(struct sta_info *sta, unsigned int link_id) struct sta_link_alloc *alloc; int ret; - lockdep_assert_held(&sdata->local->sta_mtx); + lockdep_assert_wiphy(sdata->local->hw.wiphy); + + WARN_ON(!test_sta_flag(sta, WLAN_STA_INSERTED)); /* must represent an MLD from the start */ if (WARN_ON(!sta->sta.valid_links)) @@ -2901,7 +2896,9 @@ int ieee80211_sta_allocate_link(struct sta_info *sta, unsigned int link_id) void ieee80211_sta_free_link(struct sta_info *sta, unsigned int link_id) { - lockdep_assert_held(&sta->sdata->local->sta_mtx); + lockdep_assert_wiphy(sta->sdata->local->hw.wiphy); + + WARN_ON(!test_sta_flag(sta, WLAN_STA_INSERTED)); sta_remove_link(sta, link_id, false); } @@ -2915,7 +2912,7 @@ int ieee80211_sta_activate_link(struct sta_info *sta, unsigned int link_id) int ret; link_sta = rcu_dereference_protected(sta->link[link_id], - lockdep_is_held(&sdata->local->sta_mtx)); + lockdep_is_held(&sdata->local->hw.wiphy->mtx)); if (WARN_ON(old_links == new_links || !link_sta)) return -EINVAL; @@ -2930,7 +2927,7 @@ int ieee80211_sta_activate_link(struct sta_info *sta, unsigned int link_id) sta->sta.valid_links = new_links; - if (!test_sta_flag(sta, WLAN_STA_INSERTED)) + if (WARN_ON(!test_sta_flag(sta, WLAN_STA_INSERTED))) goto hash; ieee80211_recalc_min_chandef(sdata, link_id); @@ -2959,11 +2956,11 @@ void ieee80211_sta_remove_link(struct sta_info *sta, unsigned int link_id) struct ieee80211_sub_if_data *sdata = sta->sdata; u16 old_links = sta->sta.valid_links; - lockdep_assert_held(&sdata->local->sta_mtx); + lockdep_assert_wiphy(sdata->local->hw.wiphy); sta->sta.valid_links &= ~BIT(link_id); - if (test_sta_flag(sta, WLAN_STA_INSERTED)) + if (!WARN_ON(!test_sta_flag(sta, WLAN_STA_INSERTED))) drv_change_sta_links(sdata->local, sdata, &sta->sta, old_links, sta->sta.valid_links); @@ -2990,7 +2987,7 @@ void ieee80211_sta_set_max_amsdu_subframes(struct sta_info *sta, WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB) << 1; if (val) - sta->sta.max_amsdu_subframes = 4 << val; + sta->sta.max_amsdu_subframes = 4 << (4 - val); } #ifdef CONFIG_LOCKDEP @@ -2998,7 +2995,7 @@ bool lockdep_sta_mutex_held(struct ieee80211_sta *pubsta) { struct sta_info *sta = container_of(pubsta, struct sta_info, sta); - return lockdep_is_held(&sta->local->sta_mtx); + return lockdep_is_held(&sta->local->hw.wiphy->mtx); } EXPORT_SYMBOL(lockdep_sta_mutex_held); #endif diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 195b563132d6..7acf2223e47a 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -3,7 +3,7 @@ * Copyright 2002-2005, Devicescape Software, Inc. * Copyright 2013-2014 Intel Mobile Communications GmbH * Copyright(c) 2015-2017 Intel Deutschland GmbH - * Copyright(c) 2020-2022 Intel Corporation + * Copyright(c) 2020-2023 Intel Corporation */ #ifndef STA_INFO_H @@ -259,9 +259,6 @@ struct tid_ampdu_rx { /** * struct sta_ampdu_mlme - STA aggregation information. * - * @mtx: mutex to protect all TX data (except non-NULL assignments - * to tid_tx[idx], which are protected by the sta spinlock) - * tid_start_tx is also protected by sta->lock. * @tid_rx: aggregation info for Rx per TID -- RCU protected * @tid_rx_token: dialog tokens for valid aggregation sessions * @tid_rx_timer_expired: bitmap indicating on which TIDs the @@ -275,13 +272,13 @@ struct tid_ampdu_rx { * unexpected aggregation related frames outside a session * @work: work struct for starting/stopping aggregation * @tid_tx: aggregation info for Tx per TID - * @tid_start_tx: sessions where start was requested + * @tid_start_tx: sessions where start was requested, not just protected + * by wiphy mutex but also sta->lock * @last_addba_req_time: timestamp of the last addBA request. * @addba_req_num: number of times addBA request has been sent. * @dialog_token_allocator: dialog token enumerator for each new session; */ struct sta_ampdu_mlme { - struct mutex mtx; /* rx */ struct tid_ampdu_rx __rcu *tid_rx[IEEE80211_NUM_TIDS]; u8 tid_rx_token[IEEE80211_NUM_TIDS]; @@ -291,7 +288,7 @@ struct sta_ampdu_mlme { unsigned long agg_session_valid[BITS_TO_LONGS(IEEE80211_NUM_TIDS)]; unsigned long unexpected_agg[BITS_TO_LONGS(IEEE80211_NUM_TIDS)]; /* tx */ - struct work_struct work; + struct wiphy_work work; struct tid_ampdu_tx __rcu *tid_tx[IEEE80211_NUM_TIDS]; struct tid_ampdu_tx *tid_start_tx[IEEE80211_NUM_TIDS]; unsigned long last_addba_req_time[IEEE80211_NUM_TIDS]; @@ -618,8 +615,6 @@ struct link_sta_info { * @sta: station information we share with the driver * @sta_state: duplicates information about station state (for debug) * @rcu_head: RCU head used for freeing this station struct - * @cur_max_bandwidth: maximum bandwidth to use for TX to the station, - * taken from HT/VHT capabilities or VHT operating mode notification * @cparams: CoDel parameters for this station. * @reserved_tid: reserved TID (if any, otherwise IEEE80211_TID_UNRESERVED) * @amsdu_mesh_control: track the mesh A-MSDU format used by the peer: @@ -796,13 +791,10 @@ static inline void sta_info_pre_move_state(struct sta_info *sta, void ieee80211_assign_tid_tx(struct sta_info *sta, int tid, struct tid_ampdu_tx *tid_tx); -static inline struct tid_ampdu_tx * -rcu_dereference_protected_tid_tx(struct sta_info *sta, int tid) -{ - return rcu_dereference_protected(sta->ampdu_mlme.tid_tx[tid], - lockdep_is_held(&sta->lock) || - lockdep_is_held(&sta->ampdu_mlme.mtx)); -} +#define rcu_dereference_protected_tid_tx(sta, tid) \ + rcu_dereference_protected((sta)->ampdu_mlme.tid_tx[tid], \ + lockdep_is_held(&(sta)->lock) || \ + lockdep_is_held(&(sta)->local->hw.wiphy->mtx)); /* Maximum number of frames to buffer per power saving station per AC */ #define STA_MAX_TX_BUFFER 64 @@ -827,7 +819,7 @@ struct sta_info *sta_info_get(struct ieee80211_sub_if_data *sdata, struct sta_info *sta_info_get_bss(struct ieee80211_sub_if_data *sdata, const u8 *addr); -/* user must hold sta_mtx or be in RCU critical section */ +/* user must hold wiphy mutex or be in RCU critical section */ struct sta_info *sta_info_get_by_addrs(struct ieee80211_local *local, const u8 *sta_addr, const u8 *vif_addr); diff --git a/net/mac80211/status.c b/net/mac80211/status.c index 44d83da60aee..f67eafada741 100644 --- a/net/mac80211/status.c +++ b/net/mac80211/status.c @@ -184,8 +184,6 @@ static void ieee80211_check_pending_bar(struct sta_info *sta, u8 *addr, u8 tid) static void ieee80211_frame_acked(struct sta_info *sta, struct sk_buff *skb) { struct ieee80211_mgmt *mgmt = (void *) skb->data; - struct ieee80211_local *local = sta->local; - struct ieee80211_sub_if_data *sdata = sta->sdata; if (ieee80211_is_data_qos(mgmt->frame_control)) { struct ieee80211_hdr *hdr = (void *) skb->data; @@ -194,39 +192,6 @@ static void ieee80211_frame_acked(struct sta_info *sta, struct sk_buff *skb) ieee80211_check_pending_bar(sta, hdr->addr1, tid); } - - if (ieee80211_is_action(mgmt->frame_control) && - !ieee80211_has_protected(mgmt->frame_control) && - mgmt->u.action.category == WLAN_CATEGORY_HT && - mgmt->u.action.u.ht_smps.action == WLAN_HT_ACTION_SMPS && - ieee80211_sdata_running(sdata)) { - enum ieee80211_smps_mode smps_mode; - - switch (mgmt->u.action.u.ht_smps.smps_control) { - case WLAN_HT_SMPS_CONTROL_DYNAMIC: - smps_mode = IEEE80211_SMPS_DYNAMIC; - break; - case WLAN_HT_SMPS_CONTROL_STATIC: - smps_mode = IEEE80211_SMPS_STATIC; - break; - case WLAN_HT_SMPS_CONTROL_DISABLED: - default: /* shouldn't happen since we don't send that */ - smps_mode = IEEE80211_SMPS_OFF; - break; - } - - if (sdata->vif.type == NL80211_IFTYPE_STATION) { - /* - * This update looks racy, but isn't -- if we come - * here we've definitely got a station that we're - * talking to, and on a managed interface that can - * only be the AP. And the only other place updating - * this variable in managed mode is before association. - */ - sdata->deflink.smps_mode = smps_mode; - ieee80211_queue_work(&local->hw, &sdata->recalc_smps); - } - } } static void ieee80211_set_bar_pending(struct sta_info *sta, u8 tid, u16 ssn) @@ -291,7 +256,7 @@ static int ieee80211_tx_radiotap_len(struct ieee80211_tx_info *info, static void ieee80211_add_tx_radiotap_header(struct ieee80211_local *local, struct sk_buff *skb, int retry_count, - int rtap_len, int shift, + int rtap_len, struct ieee80211_tx_status *status) { struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); @@ -342,7 +307,7 @@ ieee80211_add_tx_radiotap_header(struct ieee80211_local *local, if (legacy_rate) { rthdr->it_present |= cpu_to_le32(BIT(IEEE80211_RADIOTAP_RATE)); - *pos = DIV_ROUND_UP(legacy_rate, 5 * (1 << shift)); + *pos = DIV_ROUND_UP(legacy_rate, 5); /* padding for tx flags */ pos += 2; } @@ -633,7 +598,7 @@ static void ieee80211_report_ack_skb(struct ieee80211_local *local, unsigned long flags; spin_lock_irqsave(&local->ack_status_lock, flags); - skb = idr_remove(&local->ack_status_frames, info->ack_frame_id); + skb = idr_remove(&local->ack_status_frames, info->status_data); spin_unlock_irqrestore(&local->ack_status_lock, flags); if (!skb) @@ -695,6 +660,42 @@ static void ieee80211_report_ack_skb(struct ieee80211_local *local, } } +static void ieee80211_handle_smps_status(struct ieee80211_sub_if_data *sdata, + bool acked, u16 status_data) +{ + u16 sub_data = u16_get_bits(status_data, IEEE80211_STATUS_SUBDATA_MASK); + enum ieee80211_smps_mode smps_mode = sub_data & 3; + int link_id = (sub_data >> 2); + struct ieee80211_link_data *link; + + if (!sdata || !ieee80211_sdata_running(sdata)) + return; + + if (!acked) + return; + + if (sdata->vif.type != NL80211_IFTYPE_STATION) + return; + + if (WARN(link_id >= ARRAY_SIZE(sdata->link), + "bad SMPS status link: %d\n", link_id)) + return; + + link = rcu_dereference(sdata->link[link_id]); + if (!link) + return; + + /* + * This update looks racy, but isn't, the only other place + * updating this variable is in managed mode before assoc, + * and we have to be associated to have a status from the + * action frame TX, since we cannot send it while we're not + * associated yet. + */ + link->smps_mode = smps_mode; + wiphy_work_queue(sdata->local->hw.wiphy, &link->u.mgd.recalc_smps); +} + static void ieee80211_report_used_skb(struct ieee80211_local *local, struct sk_buff *skb, bool dropped, ktime_t ack_hwtstamp) @@ -759,9 +760,24 @@ static void ieee80211_report_used_skb(struct ieee80211_local *local, } rcu_read_unlock(); - } else if (info->ack_frame_id) { + } else if (info->status_data_idr) { ieee80211_report_ack_skb(local, skb, acked, dropped, ack_hwtstamp); + } else if (info->status_data) { + struct ieee80211_sub_if_data *sdata; + + rcu_read_lock(); + + sdata = ieee80211_sdata_from_skb(local, skb); + + switch (u16_get_bits(info->status_data, + IEEE80211_STATUS_TYPE_MASK)) { + case IEEE80211_STATUS_TYPE_SMPS: + ieee80211_handle_smps_status(sdata, acked, + info->status_data); + break; + } + rcu_read_unlock(); } if (!dropped && skb->destructor) { @@ -862,7 +878,7 @@ static int ieee80211_tx_get_rates(struct ieee80211_hw *hw, } void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb, - int retry_count, int shift, bool send_to_cooked, + int retry_count, bool send_to_cooked, struct ieee80211_tx_status *status) { struct sk_buff *skb2; @@ -879,7 +895,7 @@ void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb, return; } ieee80211_add_tx_radiotap_header(local, skb, retry_count, - rtap_len, shift, status); + rtap_len, status); /* XXX: is this sufficient for BPF? */ skb_reset_mac_header(skb); @@ -932,14 +948,12 @@ static void __ieee80211_tx_status(struct ieee80211_hw *hw, bool acked; bool noack_success; struct ieee80211_bar *bar; - int shift = 0; int tid = IEEE80211_NUM_TIDS; fc = hdr->frame_control; if (status->sta) { sta = container_of(status->sta, struct sta_info, sta); - shift = ieee80211_vif_get_shift(&sta->sdata->vif); if (info->flags & IEEE80211_TX_STATUS_EOSP) clear_sta_flag(sta, WLAN_STA_SP); @@ -1077,7 +1091,7 @@ static void __ieee80211_tx_status(struct ieee80211_hw *hw, } /* send to monitor interfaces */ - ieee80211_tx_monitor(local, skb, retry_count, shift, + ieee80211_tx_monitor(local, skb, retry_count, send_to_cooked, status); } diff --git a/net/mac80211/tdls.c b/net/mac80211/tdls.c index a4af3b7675ef..f3fd66d30b84 100644 --- a/net/mac80211/tdls.c +++ b/net/mac80211/tdls.c @@ -21,7 +21,7 @@ /* give usermode some time for retries in setting up the TDLS session */ #define TDLS_PEER_SETUP_TIMEOUT (15 * HZ) -void ieee80211_tdls_peer_del_work(struct work_struct *wk) +void ieee80211_tdls_peer_del_work(struct wiphy *wiphy, struct wiphy_work *wk) { struct ieee80211_sub_if_data *sdata; struct ieee80211_local *local; @@ -30,13 +30,13 @@ void ieee80211_tdls_peer_del_work(struct work_struct *wk) u.mgd.tdls_peer_del_work.work); local = sdata->local; - mutex_lock(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); + if (!is_zero_ether_addr(sdata->u.mgd.tdls_peer)) { tdls_dbg(sdata, "TDLS del peer %pM\n", sdata->u.mgd.tdls_peer); sta_info_destroy_addr(sdata, sdata->u.mgd.tdls_peer); eth_zero_addr(sdata->u.mgd.tdls_peer); } - mutex_unlock(&local->mtx); } static void ieee80211_tdls_add_ext_capab(struct ieee80211_link_data *link, @@ -309,7 +309,7 @@ ieee80211_tdls_chandef_vht_upgrade(struct ieee80211_sub_if_data *sdata, struct sta_info *sta) { /* IEEE802.11ac-2013 Table E-4 */ - u16 centers_80mhz[] = { 5210, 5290, 5530, 5610, 5690, 5775 }; + static const u16 centers_80mhz[] = { 5210, 5290, 5530, 5610, 5690, 5775 }; struct cfg80211_chan_def uc = sta->tdls_chandef; enum nl80211_chan_width max_width = ieee80211_sta_cap_chan_bw(&sta->deflink); @@ -1180,7 +1180,7 @@ ieee80211_tdls_mgmt_setup(struct wiphy *wiphy, struct net_device *dev, return -ENOTSUPP; } - mutex_lock(&local->mtx); + lockdep_assert_wiphy(local->hw.wiphy); /* we don't support concurrent TDLS peer setups */ if (!is_zero_ether_addr(sdata->u.mgd.tdls_peer) && @@ -1208,7 +1208,6 @@ ieee80211_tdls_mgmt_setup(struct wiphy *wiphy, struct net_device *dev, ieee80211_flush_queues(local, sdata, false); memcpy(sdata->u.mgd.tdls_peer, peer, ETH_ALEN); - mutex_unlock(&local->mtx); /* we cannot take the mutex while preparing the setup packet */ ret = ieee80211_tdls_prep_mgmt_packet(wiphy, dev, peer, @@ -1218,19 +1217,16 @@ ieee80211_tdls_mgmt_setup(struct wiphy *wiphy, struct net_device *dev, extra_ies, extra_ies_len, 0, NULL); if (ret < 0) { - mutex_lock(&local->mtx); eth_zero_addr(sdata->u.mgd.tdls_peer); - mutex_unlock(&local->mtx); return ret; } - ieee80211_queue_delayed_work(&sdata->local->hw, - &sdata->u.mgd.tdls_peer_del_work, - TDLS_PEER_SETUP_TIMEOUT); + wiphy_delayed_work_queue(sdata->local->hw.wiphy, + &sdata->u.mgd.tdls_peer_del_work, + TDLS_PEER_SETUP_TIMEOUT); return 0; out_unlock: - mutex_unlock(&local->mtx); return ret; } @@ -1354,9 +1350,10 @@ static void iee80211_tdls_recalc_chanctx(struct ieee80211_sub_if_data *sdata, enum nl80211_chan_width width; struct ieee80211_supported_band *sband; - mutex_lock(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); + conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf, - lockdep_is_held(&local->chanctx_mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); if (conf) { width = conf->def.width; sband = local->hw.wiphy->bands[conf->def.chan->band]; @@ -1384,7 +1381,6 @@ static void iee80211_tdls_recalc_chanctx(struct ieee80211_sub_if_data *sdata, } } - mutex_unlock(&local->chanctx_mtx); } static int iee80211_tdls_have_ht_peers(struct ieee80211_sub_if_data *sdata) @@ -1447,6 +1443,8 @@ int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, struct ieee80211_local *local = sdata->local; int ret; + lockdep_assert_wiphy(local->hw.wiphy); + if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS)) return -ENOTSUPP; @@ -1467,35 +1465,26 @@ int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, /* protect possible bss_conf changes and avoid concurrency in * ieee80211_bss_info_change_notify() */ - sdata_lock(sdata); - mutex_lock(&local->mtx); tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer); switch (oper) { case NL80211_TDLS_ENABLE_LINK: if (sdata->vif.bss_conf.csa_active) { tdls_dbg(sdata, "TDLS: disallow link during CSA\n"); - ret = -EBUSY; - break; + return -EBUSY; } - mutex_lock(&local->sta_mtx); sta = sta_info_get(sdata, peer); - if (!sta) { - mutex_unlock(&local->sta_mtx); - ret = -ENOLINK; - break; - } + if (!sta) + return -ENOLINK; iee80211_tdls_recalc_chanctx(sdata, sta); iee80211_tdls_recalc_ht_protection(sdata, sta); set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH); - mutex_unlock(&local->sta_mtx); WARN_ON_ONCE(is_zero_ether_addr(sdata->u.mgd.tdls_peer) || !ether_addr_equal(sdata->u.mgd.tdls_peer, peer)); - ret = 0; break; case NL80211_TDLS_DISABLE_LINK: /* @@ -1514,29 +1503,26 @@ int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, ret = sta_info_destroy_addr(sdata, peer); - mutex_lock(&local->sta_mtx); iee80211_tdls_recalc_ht_protection(sdata, NULL); - mutex_unlock(&local->sta_mtx); iee80211_tdls_recalc_chanctx(sdata, NULL); + if (ret) + return ret; break; default: - ret = -ENOTSUPP; - break; + return -ENOTSUPP; } - if (ret == 0 && ether_addr_equal(sdata->u.mgd.tdls_peer, peer)) { - cancel_delayed_work(&sdata->u.mgd.tdls_peer_del_work); + if (ether_addr_equal(sdata->u.mgd.tdls_peer, peer)) { + wiphy_delayed_work_cancel(sdata->local->hw.wiphy, + &sdata->u.mgd.tdls_peer_del_work); eth_zero_addr(sdata->u.mgd.tdls_peer); } - if (ret == 0) - wiphy_work_queue(sdata->local->hw.wiphy, - &sdata->deflink.u.mgd.request_smps_work); + wiphy_work_queue(sdata->local->hw.wiphy, + &sdata->deflink.u.mgd.request_smps_work); - mutex_unlock(&local->mtx); - sdata_unlock(sdata); - return ret; + return 0; } void ieee80211_tdls_oper_request(struct ieee80211_vif *vif, const u8 *peer, @@ -1669,11 +1655,12 @@ ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev, u32 ch_sw_tm_ie; int ret; + lockdep_assert_wiphy(local->hw.wiphy); + if (chandef->chan->freq_offset) /* this may work, but is untested */ return -EOPNOTSUPP; - mutex_lock(&local->sta_mtx); sta = sta_info_get(sdata, addr); if (!sta) { tdls_dbg(sdata, @@ -1703,7 +1690,6 @@ ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev, set_sta_flag(sta, WLAN_STA_TDLS_OFF_CHANNEL); out: - mutex_unlock(&local->sta_mtx); dev_kfree_skb_any(skb); return ret; } @@ -1717,26 +1703,24 @@ ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy, struct ieee80211_local *local = sdata->local; struct sta_info *sta; - mutex_lock(&local->sta_mtx); + lockdep_assert_wiphy(local->hw.wiphy); + sta = sta_info_get(sdata, addr); if (!sta) { tdls_dbg(sdata, "Invalid TDLS peer %pM for channel switch cancel\n", addr); - goto out; + return; } if (!test_sta_flag(sta, WLAN_STA_TDLS_OFF_CHANNEL)) { tdls_dbg(sdata, "TDLS channel switch not initiated by %pM\n", addr); - goto out; + return; } drv_tdls_cancel_channel_switch(local, sdata, &sta->sta); clear_sta_flag(sta, WLAN_STA_TDLS_OFF_CHANNEL); - -out: - mutex_unlock(&local->sta_mtx); } static struct sk_buff * @@ -1798,6 +1782,8 @@ ieee80211_process_tdls_channel_switch_resp(struct ieee80211_sub_if_data *sdata, struct ieee80211_tdls_ch_sw_params params = {}; int ret; + lockdep_assert_wiphy(local->hw.wiphy); + params.action_code = WLAN_TDLS_CHANNEL_SWITCH_RESPONSE; params.timestamp = rx_status->device_timestamp; @@ -1807,7 +1793,6 @@ ieee80211_process_tdls_channel_switch_resp(struct ieee80211_sub_if_data *sdata, return -EINVAL; } - mutex_lock(&local->sta_mtx); sta = sta_info_get(sdata, tf->sa); if (!sta || !test_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH)) { tdls_dbg(sdata, "TDLS chan switch from non-peer sta %pM\n", @@ -1870,7 +1855,6 @@ call_drv: tf->sa, params.status); out: - mutex_unlock(&local->sta_mtx); dev_kfree_skb_any(params.tmpl_skb); kfree(elems); return ret; @@ -1896,6 +1880,8 @@ ieee80211_process_tdls_channel_switch_req(struct ieee80211_sub_if_data *sdata, struct ieee80211_tdls_ch_sw_params params = {}; int ret = 0; + lockdep_assert_wiphy(local->hw.wiphy); + params.action_code = WLAN_TDLS_CHANNEL_SWITCH_REQUEST; params.timestamp = rx_status->device_timestamp; @@ -1984,7 +1970,6 @@ ieee80211_process_tdls_channel_switch_req(struct ieee80211_sub_if_data *sdata, goto free; } - mutex_lock(&local->sta_mtx); sta = sta_info_get(sdata, tf->sa); if (!sta || !test_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH)) { tdls_dbg(sdata, "TDLS chan switch from non-peer sta %pM\n", @@ -2031,7 +2016,6 @@ ieee80211_process_tdls_channel_switch_req(struct ieee80211_sub_if_data *sdata, tf->sa, params.chandef->chan->center_freq, params.chandef->width); out: - mutex_unlock(&local->sta_mtx); dev_kfree_skb_any(params.tmpl_skb); free: kfree(elems); diff --git a/net/mac80211/tests/Makefile b/net/mac80211/tests/Makefile new file mode 100644 index 000000000000..4814584f8a14 --- /dev/null +++ b/net/mac80211/tests/Makefile @@ -0,0 +1,3 @@ +mac80211-tests-y += module.o elems.o + +obj-$(CONFIG_MAC80211_KUNIT_TEST) += mac80211-tests.o diff --git a/net/mac80211/tests/elems.c b/net/mac80211/tests/elems.c new file mode 100644 index 000000000000..997d0cd27b2d --- /dev/null +++ b/net/mac80211/tests/elems.c @@ -0,0 +1,101 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * KUnit tests for element parsing + * + * Copyright (C) 2023 Intel Corporation + */ +#include <kunit/test.h> +#include "../ieee80211_i.h" + +MODULE_IMPORT_NS(EXPORTED_FOR_KUNIT_TESTING); + +static void mle_defrag(struct kunit *test) +{ + struct ieee80211_elems_parse_params parse_params = { + .link_id = 12, + .from_ap = true, + }; + struct ieee802_11_elems *parsed; + struct sk_buff *skb; + u8 *len_mle, *len_prof; + int i; + + skb = alloc_skb(1024, GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, skb); + + if (skb_pad(skb, skb_tailroom(skb))) { + KUNIT_FAIL(test, "failed to pad skb"); + return; + } + + /* build a multi-link element */ + skb_put_u8(skb, WLAN_EID_EXTENSION); + len_mle = skb_put(skb, 1); + skb_put_u8(skb, WLAN_EID_EXT_EHT_MULTI_LINK); + + put_unaligned_le16(IEEE80211_ML_CONTROL_TYPE_BASIC, + skb_put(skb, 2)); + /* struct ieee80211_mle_basic_common_info */ + skb_put_u8(skb, 7); /* includes len field */ + skb_put_data(skb, "\x00\x00\x00\x00\x00\x00", ETH_ALEN); /* MLD addr */ + + /* with a STA profile inside */ + skb_put_u8(skb, IEEE80211_MLE_SUBELEM_PER_STA_PROFILE); + len_prof = skb_put(skb, 1); + put_unaligned_le16(IEEE80211_MLE_STA_CONTROL_COMPLETE_PROFILE | + parse_params.link_id, + skb_put(skb, 2)); + skb_put_u8(skb, 1); /* fake sta_info_len - includes itself */ + /* put a bunch of useless elements into it */ + for (i = 0; i < 20; i++) { + skb_put_u8(skb, WLAN_EID_SSID); + skb_put_u8(skb, 20); + skb_put(skb, 20); + } + + /* fragment STA profile */ + ieee80211_fragment_element(skb, len_prof, + IEEE80211_MLE_SUBELEM_FRAGMENT); + /* fragment MLE */ + ieee80211_fragment_element(skb, len_mle, WLAN_EID_FRAGMENT); + + parse_params.start = skb->data; + parse_params.len = skb->len; + parsed = ieee802_11_parse_elems_full(&parse_params); + /* should return ERR_PTR or valid, not NULL */ + KUNIT_EXPECT_NOT_NULL(test, parsed); + + if (IS_ERR_OR_NULL(parsed)) + goto free_skb; + + KUNIT_EXPECT_NOT_NULL(test, parsed->ml_basic_elem); + KUNIT_EXPECT_EQ(test, + parsed->ml_basic_len, + 2 /* control */ + + 7 /* common info */ + + 2 /* sta profile element header */ + + 3 /* sta profile header */ + + 20 * 22 /* sta profile data */ + + 2 /* sta profile fragment element */); + KUNIT_EXPECT_NOT_NULL(test, parsed->prof); + KUNIT_EXPECT_EQ(test, + parsed->sta_prof_len, + 3 /* sta profile header */ + + 20 * 22 /* sta profile data */); + + kfree(parsed); +free_skb: + kfree_skb(skb); +} + +static struct kunit_case element_parsing_test_cases[] = { + KUNIT_CASE(mle_defrag), + {} +}; + +static struct kunit_suite element_parsing = { + .name = "mac80211-element-parsing", + .test_cases = element_parsing_test_cases, +}; + +kunit_test_suite(element_parsing); diff --git a/net/mac80211/tests/module.c b/net/mac80211/tests/module.c new file mode 100644 index 000000000000..9d05f2943935 --- /dev/null +++ b/net/mac80211/tests/module.c @@ -0,0 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * This is just module boilerplate for the mac80211 kunit module. + * + * Copyright (C) 2023 Intel Corporation + */ +#include <linux/module.h> + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("tests for mac80211"); diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h index b8c53b4a710b..032718d5b298 100644 --- a/net/mac80211/trace.h +++ b/net/mac80211/trace.h @@ -2839,23 +2839,26 @@ TRACE_EVENT(api_sta_block_awake, ); TRACE_EVENT(api_chswitch_done, - TP_PROTO(struct ieee80211_sub_if_data *sdata, bool success), + TP_PROTO(struct ieee80211_sub_if_data *sdata, bool success, + unsigned int link_id), - TP_ARGS(sdata, success), + TP_ARGS(sdata, success, link_id), TP_STRUCT__entry( VIF_ENTRY __field(bool, success) + __field(unsigned int, link_id) ), TP_fast_assign( VIF_ASSIGN; __entry->success = success; + __entry->link_id = link_id; ), TP_printk( - VIF_PR_FMT " success=%d", - VIF_PR_ARG, __entry->success + VIF_PR_FMT " success=%d link_id=%d", + VIF_PR_ARG, __entry->success, __entry->link_id ) ); diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index d45d4be63dd8..ed4fdf655343 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -43,7 +43,7 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, struct sk_buff *skb, int group_addr, int next_frag_len) { - int rate, mrate, erp, dur, i, shift = 0; + int rate, mrate, erp, dur, i; struct ieee80211_rate *txrate; struct ieee80211_local *local = tx->local; struct ieee80211_supported_band *sband; @@ -58,10 +58,8 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, rcu_read_lock(); chanctx_conf = rcu_dereference(tx->sdata->vif.bss_conf.chanctx_conf); - if (chanctx_conf) { - shift = ieee80211_chandef_get_shift(&chanctx_conf->def); + if (chanctx_conf) rate_flags = ieee80211_chandef_rate_flags(&chanctx_conf->def); - } rcu_read_unlock(); /* uh huh? */ @@ -143,7 +141,7 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, continue; if (tx->sdata->vif.bss_conf.basic_rates & BIT(i)) - rate = DIV_ROUND_UP(r->bitrate, 1 << shift); + rate = r->bitrate; switch (sband->band) { case NL80211_BAND_2GHZ: @@ -173,7 +171,7 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, if (rate == -1) { /* No matching basic rate found; use highest suitable mandatory * PHY rate */ - rate = DIV_ROUND_UP(mrate, 1 << shift); + rate = mrate; } /* Don't calculate ACKs for QoS Frames with NoAck Policy set */ @@ -185,8 +183,7 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, * (10 bytes + 4-byte FCS = 112 bits) plus SIFS; rounded up * to closest integer */ dur = ieee80211_frame_duration(sband->band, 10, rate, erp, - tx->sdata->vif.bss_conf.use_short_preamble, - shift); + tx->sdata->vif.bss_conf.use_short_preamble); if (next_frag_len) { /* Frame is fragmented: duration increases with time needed to @@ -195,8 +192,7 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, /* next fragment */ dur += ieee80211_frame_duration(sband->band, next_frag_len, txrate->bitrate, erp, - tx->sdata->vif.bss_conf.use_short_preamble, - shift); + tx->sdata->vif.bss_conf.use_short_preamble); } return cpu_to_le16(dur); @@ -266,8 +262,8 @@ ieee80211_tx_h_dynamic_ps(struct ieee80211_tx_data *tx) IEEE80211_QUEUE_STOP_REASON_PS, false); ifmgd->flags &= ~IEEE80211_STA_NULLFUNC_ACKED; - ieee80211_queue_work(&local->hw, - &local->dynamic_ps_disable_work); + wiphy_work_queue(local->hw.wiphy, + &local->dynamic_ps_disable_work); } /* Don't restart the timer if we're not disassociated */ @@ -2167,6 +2163,11 @@ bool ieee80211_parse_tx_radiotap(struct sk_buff *skb, rate_found = true; break; + case IEEE80211_RADIOTAP_ANTENNA: + /* this can appear multiple times, keep a bitmap */ + info->control.antennas |= BIT(*iterator.this_arg); + break; + case IEEE80211_RADIOTAP_DATA_RETRIES: rate_retries = *iterator.this_arg; break; @@ -2261,8 +2262,17 @@ bool ieee80211_parse_tx_radiotap(struct sk_buff *skb, } if (rate_flags & IEEE80211_TX_RC_MCS) { + /* reset antennas if not enough */ + if (IEEE80211_HT_MCS_CHAINS(rate) > + hweight8(info->control.antennas)) + info->control.antennas = 0; + info->control.rates[0].idx = rate; } else if (rate_flags & IEEE80211_TX_RC_VHT_MCS) { + /* reset antennas if not enough */ + if (vht_nss > hweight8(info->control.antennas)) + info->control.antennas = 0; + ieee80211_rate_set_vht(info->control.rates, vht_mcs, vht_nss); } else if (sband) { @@ -2856,9 +2866,10 @@ static struct sk_buff *ieee80211_build_hdr(struct ieee80211_sub_if_data *sdata, goto free; } - if (unlikely(!multicast && ((skb->sk && - skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS) || - ctrl_flags & IEEE80211_TX_CTL_REQ_TX_STATUS))) + if (unlikely(!multicast && + ((skb->sk && + skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS) || + ctrl_flags & IEEE80211_TX_CTL_REQ_TX_STATUS))) info_id = ieee80211_store_ack_skb(local, skb, &info_flags, cookie); @@ -2942,7 +2953,10 @@ static struct sk_buff *ieee80211_build_hdr(struct ieee80211_sub_if_data *sdata, memset(info, 0, sizeof(*info)); info->flags = info_flags; - info->ack_frame_id = info_id; + if (info_id) { + info->status_data = info_id; + info->status_data_idr = 1; + } info->band = band; if (likely(!cookie)) { @@ -4475,6 +4489,8 @@ static void ieee80211_mlo_multicast_tx(struct net_device *dev, * @dev: incoming interface * * On failure skb will be freed. + * + * Returns: the netdev TX status (but really only %NETDEV_TX_OK) */ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev) @@ -4639,9 +4655,12 @@ static void ieee80211_8023_xmit(struct ieee80211_sub_if_data *sdata, } if (unlikely(skb->sk && - skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS)) - info->ack_frame_id = ieee80211_store_ack_skb(local, skb, - &info->flags, NULL); + skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS)) { + info->status_data = ieee80211_store_ack_skb(local, skb, + &info->flags, NULL); + if (info->status_data) + info->status_data_idr = 1; + } dev_sw_netstats_tx_add(dev, skbs, len); sta->deflink.tx_stats.packets[queue] += skbs; @@ -5550,7 +5569,6 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw, IEEE80211_INCLUDE_ALL_MBSSID_ELEMS, NULL); struct sk_buff *copy; - int shift; if (!bcn) return bcn; @@ -5570,8 +5588,7 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw, if (!copy) return bcn; - shift = ieee80211_vif_get_shift(vif); - ieee80211_tx_monitor(hw_to_local(hw), copy, 1, shift, false, NULL); + ieee80211_tx_monitor(hw_to_local(hw), copy, 1, false, NULL); return bcn; } @@ -5921,7 +5938,7 @@ int ieee80211_reserve_tid(struct ieee80211_sta *pubsta, u8 tid) int ret; u32 queues; - lockdep_assert_held(&local->sta_mtx); + lockdep_assert_wiphy(local->hw.wiphy); /* only some cases are supported right now */ switch (sdata->vif.type) { @@ -5982,7 +5999,7 @@ void ieee80211_unreserve_tid(struct ieee80211_sta *pubsta, u8 tid) struct sta_info *sta = container_of(pubsta, struct sta_info, sta); struct ieee80211_sub_if_data *sdata = sta->sdata; - lockdep_assert_held(&sdata->local->sta_mtx); + lockdep_assert_wiphy(sdata->local->hw.wiphy); /* only some cases are supported right now */ switch (sdata->vif.type) { @@ -6103,6 +6120,9 @@ int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev, u32 flags = 0; int err; + /* mutex lock is only needed for incrementing the cookie counter */ + lockdep_assert_wiphy(local->hw.wiphy); + /* Only accept CONTROL_PORT_PROTOCOL configured in CONNECT/ASSOCIATE * or Pre-Authentication */ @@ -6193,15 +6213,10 @@ int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev, rcu_read_unlock(); start_xmit: - /* mutex lock is only needed for incrementing the cookie counter */ - mutex_lock(&local->mtx); - local_bh_disable(); __ieee80211_subif_start_xmit(skb, skb->dev, flags, ctrl_flags, cookie); local_bh_enable(); - mutex_unlock(&local->mtx); - return 0; } diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 8a6917cf63cf..98a3bffc6991 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -24,6 +24,7 @@ #include <net/net_namespace.h> #include <net/cfg80211.h> #include <net/rtnetlink.h> +#include <kunit/visibility.h> #include "ieee80211_i.h" #include "driver-ops.h" @@ -109,8 +110,7 @@ void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx) } int ieee80211_frame_duration(enum nl80211_band band, size_t len, - int rate, int erp, int short_preamble, - int shift) + int rate, int erp, int short_preamble) { int dur; @@ -121,9 +121,6 @@ int ieee80211_frame_duration(enum nl80211_band band, size_t len, * * rate is in 100 kbps, so divident is multiplied by 10 in the * DIV_ROUND_UP() operations. - * - * shift may be 2 for 5 MHz channels or 1 for 10 MHz channels, and - * is assumed to be 0 otherwise. */ if (band == NL80211_BAND_5GHZ || erp) { @@ -144,12 +141,6 @@ int ieee80211_frame_duration(enum nl80211_band band, size_t len, dur += 16; /* IEEE 802.11-2012 18.3.2.4: T_PREAMBLE = 16 usec */ dur += 4; /* IEEE 802.11-2012 18.3.2.4: T_SIGNAL = 4 usec */ - /* IEEE 802.11-2012 18.3.2.4: all values above are: - * * times 4 for 5 MHz - * * times 2 for 10 MHz - */ - dur *= 1 << shift; - /* rates should already consider the channel bandwidth, * don't apply divisor again. */ @@ -184,7 +175,7 @@ __le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw, { struct ieee80211_sub_if_data *sdata; u16 dur; - int erp, shift = 0; + int erp; bool short_preamble = false; erp = 0; @@ -193,11 +184,10 @@ __le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw, short_preamble = sdata->vif.bss_conf.use_short_preamble; if (sdata->deflink.operating_11g_mode) erp = rate->flags & IEEE80211_RATE_ERP_G; - shift = ieee80211_vif_get_shift(vif); } dur = ieee80211_frame_duration(band, frame_len, rate->bitrate, erp, - short_preamble, shift); + short_preamble); return cpu_to_le16(dur); } @@ -211,7 +201,7 @@ __le16 ieee80211_rts_duration(struct ieee80211_hw *hw, struct ieee80211_rate *rate; struct ieee80211_sub_if_data *sdata; bool short_preamble; - int erp, shift = 0, bitrate; + int erp, bitrate; u16 dur; struct ieee80211_supported_band *sband; @@ -227,20 +217,19 @@ __le16 ieee80211_rts_duration(struct ieee80211_hw *hw, short_preamble = sdata->vif.bss_conf.use_short_preamble; if (sdata->deflink.operating_11g_mode) erp = rate->flags & IEEE80211_RATE_ERP_G; - shift = ieee80211_vif_get_shift(vif); } - bitrate = DIV_ROUND_UP(rate->bitrate, 1 << shift); + bitrate = rate->bitrate; /* CTS duration */ dur = ieee80211_frame_duration(sband->band, 10, bitrate, - erp, short_preamble, shift); + erp, short_preamble); /* Data frame duration */ dur += ieee80211_frame_duration(sband->band, frame_len, bitrate, - erp, short_preamble, shift); + erp, short_preamble); /* ACK duration */ dur += ieee80211_frame_duration(sband->band, 10, bitrate, - erp, short_preamble, shift); + erp, short_preamble); return cpu_to_le16(dur); } @@ -255,7 +244,7 @@ __le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw, struct ieee80211_rate *rate; struct ieee80211_sub_if_data *sdata; bool short_preamble; - int erp, shift = 0, bitrate; + int erp, bitrate; u16 dur; struct ieee80211_supported_band *sband; @@ -270,18 +259,17 @@ __le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw, short_preamble = sdata->vif.bss_conf.use_short_preamble; if (sdata->deflink.operating_11g_mode) erp = rate->flags & IEEE80211_RATE_ERP_G; - shift = ieee80211_vif_get_shift(vif); } - bitrate = DIV_ROUND_UP(rate->bitrate, 1 << shift); + bitrate = rate->bitrate; /* Data frame duration */ dur = ieee80211_frame_duration(sband->band, frame_len, bitrate, - erp, short_preamble, shift); + erp, short_preamble); if (!(frame_txctl->flags & IEEE80211_TX_CTL_NO_ACK)) { /* ACK duration */ dur += ieee80211_frame_duration(sband->band, 10, bitrate, - erp, short_preamble, shift); + erp, short_preamble); } return cpu_to_le16(dur); @@ -1002,6 +990,19 @@ ieee80211_parse_extension_element(u32 *crc, } } break; + case WLAN_EID_EXT_BANDWIDTH_INDICATION: + if (ieee80211_bandwidth_indication_size_ok(data, len)) + elems->bandwidth_indication = data; + calc_crc = true; + break; + case WLAN_EID_EXT_TID_TO_LINK_MAPPING: + calc_crc = true; + if (ieee80211_tid_to_link_map_size_ok(data, len) && + elems->ttlm_num < ARRAY_SIZE(elems->ttlm)) { + elems->ttlm[elems->ttlm_num] = (void *)data; + elems->ttlm_num++; + } + break; } if (crc && calc_crc) @@ -1017,11 +1018,11 @@ _ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params, bool calc_crc = params->filter != 0; DECLARE_BITMAP(seen_elems, 256); u32 crc = params->crc; - const u8 *ie; bitmap_zero(seen_elems, 256); for_each_element(elem, params->start, params->len) { + const struct element *subelem; bool elem_parse_failed; u8 id = elem->id; u8 elen = elem->datalen; @@ -1279,15 +1280,27 @@ _ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params, } /* * This is a bit tricky, but as we only care about - * the wide bandwidth channel switch element, so - * just parse it out manually. + * a few elements, parse them out manually. */ - ie = cfg80211_find_ie(WLAN_EID_WIDE_BW_CHANNEL_SWITCH, - pos, elen); - if (ie) { - if (ie[1] >= sizeof(*elems->wide_bw_chansw_ie)) + subelem = cfg80211_find_elem(WLAN_EID_WIDE_BW_CHANNEL_SWITCH, + pos, elen); + if (subelem) { + if (subelem->datalen >= sizeof(*elems->wide_bw_chansw_ie)) elems->wide_bw_chansw_ie = - (void *)(ie + 2); + (void *)subelem->data; + else + elem_parse_failed = true; + } + + subelem = cfg80211_find_ext_elem(WLAN_EID_EXT_BANDWIDTH_INDICATION, + pos, elen); + if (subelem) { + const void *edata = subelem->data + 1; + u8 edatalen = subelem->datalen - 1; + + if (ieee80211_bandwidth_indication_size_ok(edata, + edatalen)) + elems->bandwidth_indication = edata; else elem_parse_failed = true; } @@ -1654,6 +1667,7 @@ ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params) return elems; } +EXPORT_SYMBOL_IF_KUNIT(ieee802_11_parse_elems_full); void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata, struct ieee80211_tx_queue_params @@ -1942,7 +1956,6 @@ static int ieee80211_build_preq_ies_band(struct ieee80211_sub_if_data *sdata, u8 rates[32]; int num_rates; int ext_rates_len; - int shift; u32 rate_flags; bool have_80mhz = false; @@ -1953,7 +1966,6 @@ static int ieee80211_build_preq_ies_band(struct ieee80211_sub_if_data *sdata, return 0; rate_flags = ieee80211_chandef_rate_flags(chandef); - shift = ieee80211_chandef_get_shift(chandef); /* For direct scan add S1G IE and consider its override bits */ if (band == NL80211_BAND_S1GHZ) { @@ -1971,8 +1983,7 @@ static int ieee80211_build_preq_ies_band(struct ieee80211_sub_if_data *sdata, continue; rates[num_rates++] = - (u8) DIV_ROUND_UP(sband->bitrates[i].bitrate, - (1 << shift) * 5); + (u8) DIV_ROUND_UP(sband->bitrates[i].bitrate, 5); } supp_rates_len = min_t(int, num_rates, 8); @@ -2265,14 +2276,13 @@ u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata, struct ieee80211_supported_band *sband; size_t num_rates; u32 supp_rates, rate_flags; - int i, j, shift; + int i, j; sband = sdata->local->hw.wiphy->bands[band]; if (WARN_ON(!sband)) return 1; rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); - shift = ieee80211_vif_get_shift(&sdata->vif); num_rates = sband->n_bitrates; supp_rates = 0; @@ -2298,8 +2308,7 @@ u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata, != rate_flags) continue; - brate = DIV_ROUND_UP(sband->bitrates[j].bitrate, - 1 << shift); + brate = sband->bitrates[j].bitrate; if (brate == own_rate) { supp_rates |= BIT(j); @@ -2316,9 +2325,10 @@ void ieee80211_stop_device(struct ieee80211_local *local) ieee80211_led_radio(local, false); ieee80211_mod_tpt_led_trig(local, 0, IEEE80211_TPT_LEDTRIG_FL_RADIO); - cancel_work_sync(&local->reconfig_filter); + wiphy_work_cancel(local->hw.wiphy, &local->reconfig_filter); flush_workqueue(local->workqueue); + wiphy_work_flush(local->hw.wiphy, NULL); drv_stop(local); } @@ -2340,8 +2350,8 @@ static void ieee80211_flush_completed_scan(struct ieee80211_local *local, */ if (aborted) set_bit(SCAN_ABORTED, &local->scanning); - ieee80211_queue_delayed_work(&local->hw, &local->scan_work, 0); - flush_delayed_work(&local->scan_work); + wiphy_delayed_work_queue(local->hw.wiphy, &local->scan_work, 0); + wiphy_delayed_work_flush(local->hw.wiphy, &local->scan_work); } } @@ -2350,6 +2360,8 @@ static void ieee80211_handle_reconfig_failure(struct ieee80211_local *local) struct ieee80211_sub_if_data *sdata; struct ieee80211_chanctx *ctx; + lockdep_assert_wiphy(local->hw.wiphy); + /* * We get here if during resume the device can't be restarted properly. * We might also get here if this happens during HW reset, which is a @@ -2378,10 +2390,8 @@ static void ieee80211_handle_reconfig_failure(struct ieee80211_local *local) /* Mark channel contexts as not being in the driver any more to avoid * removing them from the driver during the shutdown process... */ - mutex_lock(&local->chanctx_mtx); list_for_each_entry(ctx, &local->chanctx_list, list) ctx->driver_present = false; - mutex_unlock(&local->chanctx_mtx); } static void ieee80211_assign_chanctx(struct ieee80211_local *local, @@ -2391,17 +2401,17 @@ static void ieee80211_assign_chanctx(struct ieee80211_local *local, struct ieee80211_chanctx_conf *conf; struct ieee80211_chanctx *ctx; + lockdep_assert_wiphy(local->hw.wiphy); + if (!local->use_chanctx) return; - mutex_lock(&local->chanctx_mtx); conf = rcu_dereference_protected(link->conf->chanctx_conf, - lockdep_is_held(&local->chanctx_mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); if (conf) { ctx = container_of(conf, struct ieee80211_chanctx, conf); drv_assign_vif_chanctx(local, sdata, link->conf, ctx); } - mutex_unlock(&local->chanctx_mtx); } static void ieee80211_reconfig_stations(struct ieee80211_sub_if_data *sdata) @@ -2409,8 +2419,9 @@ static void ieee80211_reconfig_stations(struct ieee80211_sub_if_data *sdata) struct ieee80211_local *local = sdata->local; struct sta_info *sta; + lockdep_assert_wiphy(local->hw.wiphy); + /* add STAs back */ - mutex_lock(&local->sta_mtx); list_for_each_entry(sta, &local->sta_list, list) { enum ieee80211_sta_state state; @@ -2422,7 +2433,6 @@ static void ieee80211_reconfig_stations(struct ieee80211_sub_if_data *sdata) WARN_ON(drv_sta_state(local, sta->sdata, sta, state, state + 1)); } - mutex_unlock(&local->sta_mtx); } static int ieee80211_reconfig_nan(struct ieee80211_sub_if_data *sdata) @@ -2509,6 +2519,8 @@ int ieee80211_reconfig(struct ieee80211_local *local) bool suspended = local->suspended; bool in_reconfig = false; + lockdep_assert_wiphy(local->hw.wiphy); + /* nothing to do if HW shouldn't run */ if (!local->open_count) goto wake_up; @@ -2624,12 +2636,10 @@ int ieee80211_reconfig(struct ieee80211_local *local) /* add channel contexts */ if (local->use_chanctx) { - mutex_lock(&local->chanctx_mtx); list_for_each_entry(ctx, &local->chanctx_list, list) if (ctx->replace_state != IEEE80211_CHANCTX_REPLACES_OTHER) WARN_ON(drv_add_chanctx(local, ctx)); - mutex_unlock(&local->chanctx_mtx); sdata = wiphy_dereference(local->hw.wiphy, local->monitor_sdata); @@ -2663,7 +2673,6 @@ int ieee80211_reconfig(struct ieee80211_local *local) if (!ieee80211_sdata_running(sdata)) continue; - sdata_lock(sdata); if (ieee80211_vif_is_mld(&sdata->vif)) { struct ieee80211_bss_conf *old[IEEE80211_MLD_MAX_NUM_LINKS] = { [0] = &sdata->vif.bss_conf, @@ -2795,7 +2804,6 @@ int ieee80211_reconfig(struct ieee80211_local *local) case NL80211_IFTYPE_NAN: res = ieee80211_reconfig_nan(sdata); if (res < 0) { - sdata_unlock(sdata); ieee80211_handle_reconfig_failure(local); return res; } @@ -2813,7 +2821,6 @@ int ieee80211_reconfig(struct ieee80211_local *local) WARN_ON(1); break; } - sdata_unlock(sdata); if (active_links) ieee80211_set_active_links(&sdata->vif, active_links); @@ -2843,7 +2850,6 @@ int ieee80211_reconfig(struct ieee80211_local *local) if (!ieee80211_sdata_running(sdata)) continue; - sdata_lock(sdata); switch (sdata->vif.type) { case NL80211_IFTYPE_AP_VLAN: case NL80211_IFTYPE_AP: @@ -2852,7 +2858,6 @@ int ieee80211_reconfig(struct ieee80211_local *local) default: break; } - sdata_unlock(sdata); } /* add back keys */ @@ -2860,11 +2865,10 @@ int ieee80211_reconfig(struct ieee80211_local *local) ieee80211_reenable_keys(sdata); /* Reconfigure sched scan if it was interrupted by FW restart */ - mutex_lock(&local->mtx); sched_scan_sdata = rcu_dereference_protected(local->sched_scan_sdata, - lockdep_is_held(&local->mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); sched_scan_req = rcu_dereference_protected(local->sched_scan_req, - lockdep_is_held(&local->mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); if (sched_scan_sdata && sched_scan_req) /* * Sched scan stopped, but we don't want to report it. Instead, @@ -2880,7 +2884,6 @@ int ieee80211_reconfig(struct ieee80211_local *local) RCU_INIT_POINTER(local->sched_scan_req, NULL); sched_scan_stopped = true; } - mutex_unlock(&local->mtx); if (sched_scan_stopped) cfg80211_sched_scan_stopped_locked(local->hw.wiphy, 0); @@ -2901,16 +2904,12 @@ int ieee80211_reconfig(struct ieee80211_local *local) * are active. This is really a workaround though. */ if (ieee80211_hw_check(hw, AMPDU_AGGREGATION)) { - mutex_lock(&local->sta_mtx); - list_for_each_entry(sta, &local->sta_list, list) { if (!local->resuming) ieee80211_sta_tear_down_BA_sessions( sta, AGG_STOP_LOCAL_REQUEST); clear_sta_flag(sta, WLAN_STA_BLOCK_BA); } - - mutex_unlock(&local->sta_mtx); } /* @@ -2926,9 +2925,7 @@ int ieee80211_reconfig(struct ieee80211_local *local) barrier(); /* Restart deferred ROCs */ - mutex_lock(&local->mtx); ieee80211_start_next_roc(local); - mutex_unlock(&local->mtx); /* Requeue all works */ list_for_each_entry(sdata, &local->interfaces, list) @@ -2989,6 +2986,8 @@ static void ieee80211_reconfig_disconnect(struct ieee80211_vif *vif, u8 flag) sdata = vif_to_sdata(vif); local = sdata->local; + lockdep_assert_wiphy(local->hw.wiphy); + if (WARN_ON(flag & IEEE80211_SDATA_DISCONNECT_RESUME && !local->resuming)) return; @@ -3002,10 +3001,8 @@ static void ieee80211_reconfig_disconnect(struct ieee80211_vif *vif, u8 flag) sdata->flags |= flag; - mutex_lock(&local->key_mtx); list_for_each_entry(key, &sdata->key_list, list) key->flags |= KEY_FLAG_TAINTED; - mutex_unlock(&local->key_mtx); } void ieee80211_hw_restart_disconnect(struct ieee80211_vif *vif) @@ -3027,10 +3024,10 @@ void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata, struct ieee80211_chanctx_conf *chanctx_conf; struct ieee80211_chanctx *chanctx; - mutex_lock(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); chanctx_conf = rcu_dereference_protected(link->conf->chanctx_conf, - lockdep_is_held(&local->chanctx_mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); /* * This function can be called from a work, thus it may be possible @@ -3039,12 +3036,10 @@ void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata, * So nothing should be done in such case. */ if (!chanctx_conf) - goto unlock; + return; chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf); ieee80211_recalc_smps_chanctx(local, chanctx); - unlock: - mutex_unlock(&local->chanctx_mtx); } void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata, @@ -3055,7 +3050,7 @@ void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata, struct ieee80211_chanctx *chanctx; int i; - mutex_lock(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); for (i = 0; i < ARRAY_SIZE(sdata->vif.link_conf); i++) { struct ieee80211_bss_conf *bss_conf; @@ -3071,9 +3066,9 @@ void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata, } chanctx_conf = rcu_dereference_protected(bss_conf->chanctx_conf, - lockdep_is_held(&local->chanctx_mtx)); + lockdep_is_held(&local->hw.wiphy->mtx)); /* - * Since we hold the chanctx_mtx (checked above) + * Since we hold the wiphy mutex (checked above) * we can take the chanctx_conf pointer out of the * RCU critical section, it cannot go away without * the mutex. Just the way we reached it could - in @@ -3083,14 +3078,12 @@ void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata, rcu_read_unlock(); if (!chanctx_conf) - goto unlock; + return; chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf); ieee80211_recalc_chanctx_min_def(local, chanctx, NULL); } - unlock: - mutex_unlock(&local->chanctx_mtx); } size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset) @@ -3778,12 +3771,10 @@ bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info, return true; } -void ieee80211_chandef_eht_oper(const struct ieee80211_eht_operation *eht_oper, +void ieee80211_chandef_eht_oper(const struct ieee80211_eht_operation_info *info, bool support_160, bool support_320, struct cfg80211_chan_def *chandef) { - struct ieee80211_eht_operation_info *info = (void *)eht_oper->optional; - chandef->center_freq1 = ieee80211_channel_to_frequency(info->ccfs0, chandef->chan->band); @@ -3952,8 +3943,9 @@ bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata, support_320 = eht_phy_cap & IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ; - ieee80211_chandef_eht_oper(eht_oper, support_160, - support_320, &he_chandef); + ieee80211_chandef_eht_oper((const void *)eht_oper->optional, + support_160, support_320, + &he_chandef); } if (!cfg80211_chandef_valid(&he_chandef)) { @@ -4012,7 +4004,6 @@ int ieee80211_parse_bitrates(enum nl80211_chan_width width, const u8 *srates, int srates_len, u32 *rates) { u32 rate_flags = ieee80211_chanwidth_rate_flags(width); - int shift = ieee80211_chanwidth_get_shift(width); struct ieee80211_rate *br; int brate, rate, i, j, count = 0; @@ -4026,7 +4017,7 @@ int ieee80211_parse_bitrates(enum nl80211_chan_width width, if ((rate_flags & br->flags) != rate_flags) continue; - brate = DIV_ROUND_UP(br->bitrate, (1 << shift) * 5); + brate = DIV_ROUND_UP(br->bitrate, 5); if (brate == rate) { *rates |= BIT(j); count++; @@ -4043,12 +4034,11 @@ int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata, { struct ieee80211_local *local = sdata->local; struct ieee80211_supported_band *sband; - int rate, shift; + int rate; u8 i, rates, *pos; u32 basic_rates = sdata->vif.bss_conf.basic_rates; u32 rate_flags; - shift = ieee80211_vif_get_shift(&sdata->vif); rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); sband = local->hw.wiphy->bands[band]; rates = 0; @@ -4073,8 +4063,7 @@ int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata, if (need_basic && basic_rates & BIT(i)) basic = 0x80; - rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, - 5 * (1 << shift)); + rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, 5); *pos++ = basic | (u8) rate; } @@ -4087,13 +4076,12 @@ int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata, { struct ieee80211_local *local = sdata->local; struct ieee80211_supported_band *sband; - int rate, shift; + int rate; u8 i, exrates, *pos; u32 basic_rates = sdata->vif.bss_conf.basic_rates; u32 rate_flags; rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); - shift = ieee80211_vif_get_shift(&sdata->vif); sband = local->hw.wiphy->bands[band]; exrates = 0; @@ -4122,8 +4110,7 @@ int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata, continue; if (need_basic && basic_rates & BIT(i)) basic = 0x80; - rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, - 5 * (1 << shift)); + rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, 5); *pos++ = basic | (u8) rate; } } @@ -4167,6 +4154,8 @@ u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs) * This function calculates the RX timestamp at the given MPDU offset, taking * into account what the RX timestamp was. An offset of 0 will just normalize * the timestamp to TSF at beginning of MPDU reception. + * + * Returns: the calculated timestamp */ u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, struct ieee80211_rx_status *status, @@ -4282,25 +4271,13 @@ u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, fallthrough; case RX_ENC_LEGACY: { struct ieee80211_supported_band *sband; - int shift = 0; - int bitrate; - - switch (status->bw) { - case RATE_INFO_BW_10: - shift = 1; - break; - case RATE_INFO_BW_5: - shift = 2; - break; - } sband = local->hw.wiphy->bands[status->band]; - bitrate = sband->bitrates[status->rate_idx].bitrate; - ri.legacy = DIV_ROUND_UP(bitrate, (1 << shift)); + ri.legacy = sband->bitrates[status->rate_idx].bitrate; if (status->flag & RX_FLAG_MACTIME_PLCP_START) { if (status->band == NL80211_BAND_5GHZ) { - ts += 20 << shift; + ts += 20; mpdu_offset += 2; } else if (status->enc_flags & RX_ENC_FLAG_SHORTPRE) { ts += 96; @@ -4333,16 +4310,15 @@ void ieee80211_dfs_cac_cancel(struct ieee80211_local *local) struct ieee80211_sub_if_data *sdata; struct cfg80211_chan_def chandef; - /* for interface list, to avoid linking iflist_mtx and chanctx_mtx */ lockdep_assert_wiphy(local->hw.wiphy); - mutex_lock(&local->mtx); list_for_each_entry(sdata, &local->interfaces, list) { /* it might be waiting for the local->mtx, but then * by the time it gets it, sdata->wdev.cac_started * will no longer be true */ - cancel_delayed_work(&sdata->deflink.dfs_cac_timer_work); + wiphy_delayed_work_cancel(local->hw.wiphy, + &sdata->deflink.dfs_cac_timer_work); if (sdata->wdev.cac_started) { chandef = sdata->vif.bss_conf.chandef; @@ -4353,10 +4329,10 @@ void ieee80211_dfs_cac_cancel(struct ieee80211_local *local) GFP_KERNEL); } } - mutex_unlock(&local->mtx); } -void ieee80211_dfs_radar_detected_work(struct work_struct *work) +void ieee80211_dfs_radar_detected_work(struct wiphy *wiphy, + struct wiphy_work *work) { struct ieee80211_local *local = container_of(work, struct ieee80211_local, radar_detected_work); @@ -4364,7 +4340,8 @@ void ieee80211_dfs_radar_detected_work(struct work_struct *work) struct ieee80211_chanctx *ctx; int num_chanctx = 0; - mutex_lock(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); + list_for_each_entry(ctx, &local->chanctx_list, list) { if (ctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER) continue; @@ -4372,11 +4349,8 @@ void ieee80211_dfs_radar_detected_work(struct work_struct *work) num_chanctx++; chandef = ctx->conf.def; } - mutex_unlock(&local->chanctx_mtx); - wiphy_lock(local->hw.wiphy); ieee80211_dfs_cac_cancel(local); - wiphy_unlock(local->hw.wiphy); if (num_chanctx > 1) /* XXX: multi-channel is not supported yet */ @@ -4391,7 +4365,7 @@ void ieee80211_radar_detected(struct ieee80211_hw *hw) trace_api_radar_detected(local); - schedule_work(&local->radar_detected_work); + wiphy_work_queue(hw->wiphy, &local->radar_detected_work); } EXPORT_SYMBOL(ieee80211_radar_detected); @@ -4775,7 +4749,7 @@ static u8 ieee80211_chanctx_radar_detect(struct ieee80211_local *local, struct ieee80211_link_data *link; u8 radar_detect = 0; - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); if (WARN_ON(ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED)) return 0; @@ -4816,7 +4790,7 @@ int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata, .radar_detect = radar_detect, }; - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); if (WARN_ON(hweight32(radar_detect) > 1)) return -EINVAL; @@ -4906,7 +4880,7 @@ int ieee80211_max_num_channels(struct ieee80211_local *local) int err; struct iface_combination_params params = {0}; - lockdep_assert_held(&local->chanctx_mtx); + lockdep_assert_wiphy(local->hw.wiphy); list_for_each_entry(ctx, &local->chanctx_list, list) { if (ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED) @@ -5118,31 +5092,3 @@ u8 *ieee80211_ie_build_eht_cap(u8 *pos, return pos; } - -void ieee80211_fragment_element(struct sk_buff *skb, u8 *len_pos, u8 frag_id) -{ - unsigned int elem_len; - - if (!len_pos) - return; - - elem_len = skb->data + skb->len - len_pos - 1; - - while (elem_len > 255) { - /* this one is 255 */ - *len_pos = 255; - /* remaining data gets smaller */ - elem_len -= 255; - /* make space for the fragment ID/len in SKB */ - skb_put(skb, 2); - /* shift back the remaining data to place fragment ID/len */ - memmove(len_pos + 255 + 3, len_pos + 255 + 1, elem_len); - /* place the fragment ID */ - len_pos += 255 + 1; - *len_pos = frag_id; - /* and point to fragment length to update later */ - len_pos++; - } - - *len_pos = elem_len; -} diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c index 9a6e11d7b4db..5c01e121481a 100644 --- a/net/mac80211/wep.c +++ b/net/mac80211/wep.c @@ -3,6 +3,7 @@ * Software WEP encryption implementation * Copyright 2002, Jouni Malinen <jkmaline@cc.hut.fi> * Copyright 2003, Instant802 Networks, Inc. + * Copyright (C) 2023 Intel Corporation */ #include <linux/netdevice.h> @@ -250,18 +251,18 @@ ieee80211_crypto_wep_decrypt(struct ieee80211_rx_data *rx) if (!(status->flag & RX_FLAG_DECRYPTED)) { if (skb_linearize(rx->skb)) - return RX_DROP_UNUSABLE; + return RX_DROP_U_OOM; if (ieee80211_wep_decrypt(rx->local, rx->skb, rx->key)) - return RX_DROP_UNUSABLE; + return RX_DROP_U_WEP_DEC_FAIL; } else if (!(status->flag & RX_FLAG_IV_STRIPPED)) { if (!pskb_may_pull(rx->skb, ieee80211_hdrlen(fc) + IEEE80211_WEP_IV_LEN)) - return RX_DROP_UNUSABLE; + return RX_DROP_U_NO_IV; ieee80211_wep_remove_iv(rx->local, rx->skb, rx->key); /* remove ICV */ if (!(status->flag & RX_FLAG_ICV_STRIPPED) && pskb_trim(rx->skb, rx->skb->len - IEEE80211_WEP_ICV_LEN)) - return RX_DROP_UNUSABLE; + return RX_DROP_U_NO_ICV; } return RX_CONTINUE; diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c index 2d8e38b3bcb5..94dae7cb6dbd 100644 --- a/net/mac80211/wpa.c +++ b/net/mac80211/wpa.c @@ -3,7 +3,7 @@ * Copyright 2002-2004, Instant802 Networks, Inc. * Copyright 2008, Jouni Malinen <j@w1.fi> * Copyright (C) 2016-2017 Intel Deutschland GmbH - * Copyright (C) 2020-2022 Intel Corporation + * Copyright (C) 2020-2023 Intel Corporation */ #include <linux/netdevice.h> @@ -142,7 +142,7 @@ ieee80211_rx_h_michael_mic_verify(struct ieee80211_rx_data *rx) * group keys and only the AP is sending real multicast * frames in the BSS. */ - return RX_DROP_UNUSABLE; + return RX_DROP_U_AP_RX_GROUPCAST; } if (status->flag & RX_FLAG_MMIC_ERROR) @@ -150,10 +150,10 @@ ieee80211_rx_h_michael_mic_verify(struct ieee80211_rx_data *rx) hdrlen = ieee80211_hdrlen(hdr->frame_control); if (skb->len < hdrlen + MICHAEL_MIC_LEN) - return RX_DROP_UNUSABLE; + return RX_DROP_U_SHORT_MMIC; if (skb_linearize(rx->skb)) - return RX_DROP_UNUSABLE; + return RX_DROP_U_OOM; hdr = (void *)skb->data; data = skb->data + hdrlen; @@ -188,7 +188,7 @@ mic_fail_no_key: NL80211_KEYTYPE_PAIRWISE, rx->key ? rx->key->conf.keyidx : -1, NULL, GFP_ATOMIC); - return RX_DROP_UNUSABLE; + return RX_DROP_U_MMIC_FAIL; } static int tkip_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb) @@ -276,11 +276,11 @@ ieee80211_crypto_tkip_decrypt(struct ieee80211_rx_data *rx) return RX_CONTINUE; if (!rx->sta || skb->len - hdrlen < 12) - return RX_DROP_UNUSABLE; + return RX_DROP_U_SHORT_TKIP; /* it may be possible to optimize this a bit more */ if (skb_linearize(rx->skb)) - return RX_DROP_UNUSABLE; + return RX_DROP_U_OOM; hdr = (void *)skb->data; /* @@ -298,7 +298,7 @@ ieee80211_crypto_tkip_decrypt(struct ieee80211_rx_data *rx) &rx->tkip.iv32, &rx->tkip.iv16); if (res != TKIP_DECRYPT_OK) - return RX_DROP_UNUSABLE; + return RX_DROP_U_TKIP_FAIL; /* Trim ICV */ if (!(status->flag & RX_FLAG_ICV_STRIPPED)) @@ -523,12 +523,12 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx, if (status->flag & RX_FLAG_DECRYPTED) { if (!pskb_may_pull(rx->skb, hdrlen + IEEE80211_CCMP_HDR_LEN)) - return RX_DROP_UNUSABLE; + return RX_DROP_U_SHORT_CCMP; if (status->flag & RX_FLAG_MIC_STRIPPED) mic_len = 0; } else { if (skb_linearize(rx->skb)) - return RX_DROP_UNUSABLE; + return RX_DROP_U_OOM; } /* reload hdr - skb might have been reallocated */ @@ -536,7 +536,7 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx, data_len = skb->len - hdrlen - IEEE80211_CCMP_HDR_LEN - mic_len; if (!rx->sta || data_len < 0) - return RX_DROP_UNUSABLE; + return RX_DROP_U_SHORT_CCMP; if (!(status->flag & RX_FLAG_PN_VALIDATED)) { int res; @@ -574,7 +574,7 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx, /* Remove CCMP header and MIC */ if (pskb_trim(skb, skb->len - mic_len)) - return RX_DROP_UNUSABLE; + return RX_DROP_U_SHORT_CCMP_MIC; memmove(skb->data + IEEE80211_CCMP_HDR_LEN, skb->data, hdrlen); skb_pull(skb, IEEE80211_CCMP_HDR_LEN); @@ -719,12 +719,12 @@ ieee80211_crypto_gcmp_decrypt(struct ieee80211_rx_data *rx) if (status->flag & RX_FLAG_DECRYPTED) { if (!pskb_may_pull(rx->skb, hdrlen + IEEE80211_GCMP_HDR_LEN)) - return RX_DROP_UNUSABLE; + return RX_DROP_U_SHORT_GCMP; if (status->flag & RX_FLAG_MIC_STRIPPED) mic_len = 0; } else { if (skb_linearize(rx->skb)) - return RX_DROP_UNUSABLE; + return RX_DROP_U_OOM; } /* reload hdr - skb might have been reallocated */ @@ -732,7 +732,7 @@ ieee80211_crypto_gcmp_decrypt(struct ieee80211_rx_data *rx) data_len = skb->len - hdrlen - IEEE80211_GCMP_HDR_LEN - mic_len; if (!rx->sta || data_len < 0) - return RX_DROP_UNUSABLE; + return RX_DROP_U_SHORT_GCMP; if (!(status->flag & RX_FLAG_PN_VALIDATED)) { int res; @@ -771,7 +771,7 @@ ieee80211_crypto_gcmp_decrypt(struct ieee80211_rx_data *rx) /* Remove GCMP header and MIC */ if (pskb_trim(skb, skb->len - mic_len)) - return RX_DROP_UNUSABLE; + return RX_DROP_U_SHORT_GCMP_MIC; memmove(skb->data + IEEE80211_GCMP_HDR_LEN, skb->data, hdrlen); skb_pull(skb, IEEE80211_GCMP_HDR_LEN); @@ -924,7 +924,7 @@ ieee80211_crypto_aes_cmac_decrypt(struct ieee80211_rx_data *rx) /* management frames are already linear */ if (skb->len < 24 + sizeof(*mmie)) - return RX_DROP_UNUSABLE; + return RX_DROP_U_SHORT_CMAC; mmie = (struct ieee80211_mmie *) (skb->data + skb->len - sizeof(*mmie)); @@ -974,13 +974,13 @@ ieee80211_crypto_aes_cmac_256_decrypt(struct ieee80211_rx_data *rx) /* management frames are already linear */ if (skb->len < 24 + sizeof(*mmie)) - return RX_DROP_UNUSABLE; + return RX_DROP_U_SHORT_CMAC256; mmie = (struct ieee80211_mmie_16 *) (skb->data + skb->len - sizeof(*mmie)); if (mmie->element_id != WLAN_EID_MMIE || mmie->length != sizeof(*mmie) - 2) - return RX_DROP_UNUSABLE; /* Invalid MMIE */ + return RX_DROP_U_BAD_MMIE; /* Invalid MMIE */ bip_ipn_swap(ipn, mmie->sequence_number); @@ -1073,7 +1073,7 @@ ieee80211_crypto_aes_gmac_decrypt(struct ieee80211_rx_data *rx) /* management frames are already linear */ if (skb->len < 24 + sizeof(*mmie)) - return RX_DROP_UNUSABLE; + return RX_DROP_U_SHORT_GMAC; mmie = (struct ieee80211_mmie_16 *) (skb->data + skb->len - sizeof(*mmie)); @@ -1097,7 +1097,7 @@ ieee80211_crypto_aes_gmac_decrypt(struct ieee80211_rx_data *rx) mic = kmalloc(GMAC_MIC_LEN, GFP_ATOMIC); if (!mic) - return RX_DROP_UNUSABLE; + return RX_DROP_U_OOM; if (ieee80211_aes_gmac(key->u.aes_gmac.tfm, aad, nonce, skb->data + 24, skb->len - 24, mic) < 0 || |