Another pull request for the next cycle, this time with quite

a bit of content:
  * mesh fixes/improvements from Alexis, Bob, Chun-Yeow and Jesse
  * TDLS higher bandwidth support (Arik)
  * OCB fixes from Bertold Van den Bergh
  * suspend/resume fixes from Eliad
  * dynamic SMPS support for minstrel-HT (Krishna Chaitanya)
  * VHT bitrate mask support (Lorenzo Bianconi)
  * better regulatory support for 5/10 MHz channels (Matthias May)
  * basic support for MU-MIMO to avoid the multi-vif issue (Sara Sharon)
 along with a number of other cleanups.
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Merge tag 'mac80211-next-for-davem-2015-08-14' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
Another pull request for the next cycle, this time with quite
a bit of content:
 * mesh fixes/improvements from Alexis, Bob, Chun-Yeow and Jesse
 * TDLS higher bandwidth support (Arik)
 * OCB fixes from Bertold Van den Bergh
 * suspend/resume fixes from Eliad
 * dynamic SMPS support for minstrel-HT (Krishna Chaitanya)
 * VHT bitrate mask support (Lorenzo Bianconi)
 * better regulatory support for 5/10 MHz channels (Matthias May)
 * basic support for MU-MIMO to avoid the multi-vif issue (Sara Sharon)
along with a number of other cleanups.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/wireless/iwlwifi/dvm/dev.h

@@ -669,6 +669,8 @@ struct iwl_priv {
 	/* ieee device used by generic ieee processing code */
 	struct ieee80211_hw *hw;
 
+	struct napi_struct *napi;
+
 	struct list_head calib_results;
 
 	struct workqueue_struct *workqueue;

drivers/net/wireless/iwlwifi/dvm/main.c

@@ -2037,7 +2037,8 @@ static void iwl_napi_add(struct iwl_op_mode *op_mode,
 {
 	struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
 
-	ieee80211_napi_add(priv->hw, napi, napi_dev, poll, weight);
+	netif_napi_add(napi_dev, napi, poll, weight);
+	priv->napi = napi;
 }
 
 static const struct iwl_op_mode_ops iwl_dvm_ops = {

drivers/net/wireless/iwlwifi/dvm/rx.c

@@ -786,7 +786,7 @@ static void iwlagn_pass_packet_to_mac80211(struct iwl_priv *priv,
 
 	memcpy(IEEE80211_SKB_RXCB(skb), stats, sizeof(*stats));
 
-	ieee80211_rx(priv->hw, skb);
+	ieee80211_rx_napi(priv->hw, skb, priv->napi);
 }
 
 static u32 iwlagn_translate_rx_status(struct iwl_priv *priv, u32 decrypt_in)

drivers/net/wireless/iwlwifi/mvm/fw-api-sta.h

@@ -366,8 +366,8 @@ struct iwl_mvm_rm_sta_cmd {
  * ( MGMT_MCAST_KEY = 0x1f )
  * @ctrl_flags: %iwl_sta_key_flag
  * @IGTK:
- * @K1: IGTK master key
+ * @K1: unused
- * @K2: IGTK sub key
+ * @K2: unused
  * @sta_id: station ID that support IGTK
  * @key_id:
  * @receive_seq_cnt: initial RSC/PN needed for replay check

drivers/net/wireless/iwlwifi/mvm/mvm.h

@@ -559,6 +559,7 @@ struct iwl_mvm {
 	const struct iwl_cfg *cfg;
 	struct iwl_phy_db *phy_db;
 	struct ieee80211_hw *hw;
+	struct napi_struct *napi;
 
 	/* for protecting access to iwl_mvm */
 	struct mutex mutex;

drivers/net/wireless/iwlwifi/mvm/ops.c

@@ -1316,7 +1316,8 @@ static void iwl_mvm_napi_add(struct iwl_op_mode *op_mode,
 {
 	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 
-	ieee80211_napi_add(mvm->hw, napi, napi_dev, poll, weight);
+	netif_napi_add(napi_dev, napi, poll, weight);
+	mvm->napi = napi;
 }
 
 static const struct iwl_op_mode_ops iwl_mvm_ops = {

drivers/net/wireless/iwlwifi/mvm/rx.c

@@ -129,7 +129,7 @@ static void iwl_mvm_pass_packet_to_mac80211(struct iwl_mvm *mvm,
 				fraglen, rxb->truesize);
 	}
 
-	ieee80211_rx(mvm->hw, skb);
+	ieee80211_rx_napi(mvm->hw, skb, mvm->napi);
 }
 
 /*

drivers/net/wireless/iwlwifi/mvm/sta.c

@@ -1277,8 +1277,6 @@ static int iwl_mvm_send_sta_igtk(struct iwl_mvm *mvm,
 		const u8 *pn;
 
 		memcpy(igtk_cmd.IGTK, keyconf->key, keyconf->keylen);
-		ieee80211_aes_cmac_calculate_k1_k2(keyconf,
-						   igtk_cmd.K1, igtk_cmd.K2);
 		ieee80211_get_key_rx_seq(keyconf, 0, &seq);
 		pn = seq.aes_cmac.pn;
 		igtk_cmd.receive_seq_cnt = cpu_to_le64(((u64) pn[5] << 0) |

drivers/net/wireless/mac80211_hwsim.c

@@ -2399,6 +2399,7 @@ static int mac80211_hwsim_new_radio(struct genl_info *info,
 	ieee80211_hw_set(hw, AMPDU_AGGREGATION);
 	ieee80211_hw_set(hw, MFP_CAPABLE);
 	ieee80211_hw_set(hw, SIGNAL_DBM);
+	ieee80211_hw_set(hw, TDLS_WIDER_BW);
 	if (rctbl)
 		ieee80211_hw_set(hw, SUPPORTS_RC_TABLE);
 
@@ -3120,8 +3121,10 @@ static int hwsim_init_netlink(void)
 		goto failure;
 
 	rc = netlink_register_notifier(&hwsim_netlink_notifier);
-	if (rc)
+	if (rc) {
+		genl_unregister_family(&hwsim_genl_family);
 		goto failure;
+	}
 
 	return 0;
 

include/linux/average.h

@@ -27,4 +27,43 @@ static inline unsigned long ewma_read(const struct ewma *avg)
 	return avg->internal >> avg->factor;
 }
 
+#define DECLARE_EWMA(name, _factor, _weight)				\
+	struct ewma_##name {						\
+		unsigned long internal;					\
+	};								\
+	static inline void ewma_##name##_init(struct ewma_##name *e)	\
+	{								\
+		BUILD_BUG_ON(!__builtin_constant_p(_factor));		\
+		BUILD_BUG_ON(!__builtin_constant_p(_weight));		\
+		BUILD_BUG_ON_NOT_POWER_OF_2(_factor);			\
+		BUILD_BUG_ON_NOT_POWER_OF_2(_weight);			\
+		e->internal = 0;					\
+	}								\
+	static inline unsigned long					\
+	ewma_##name##_read(struct ewma_##name *e)			\
+	{								\
+		BUILD_BUG_ON(!__builtin_constant_p(_factor));		\
+		BUILD_BUG_ON(!__builtin_constant_p(_weight));		\
+		BUILD_BUG_ON_NOT_POWER_OF_2(_factor);			\
+		BUILD_BUG_ON_NOT_POWER_OF_2(_weight);			\
+		return e->internal >> ilog2(_factor);			\
+	}								\
+	static inline void ewma_##name##_add(struct ewma_##name *e,	\
+					     unsigned long val)		\
+	{								\
+		unsigned long internal = ACCESS_ONCE(e->internal);	\
+		unsigned long weight = ilog2(_weight);			\
+		unsigned long factor = ilog2(_factor);			\
+									\
+		BUILD_BUG_ON(!__builtin_constant_p(_factor));		\
+		BUILD_BUG_ON(!__builtin_constant_p(_weight));		\
+		BUILD_BUG_ON_NOT_POWER_OF_2(_factor);			\
+		BUILD_BUG_ON_NOT_POWER_OF_2(_weight);			\
+									\
+		ACCESS_ONCE(e->internal) = internal ?			\
+			(((internal << weight) - internal) +		\
+				(val << factor)) >> weight :		\
+			(val << factor);				\
+	}
+
 #endif /* _LINUX_AVERAGE_H */

include/linux/ieee80211.h

@@ -2074,8 +2074,8 @@ enum ieee80211_tdls_actioncode {
 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED	BIT(6)
 #define WLAN_EXT_CAPA5_TDLS_CH_SW_PROHIBITED	BIT(7)
 
+#define WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED	BIT(5)
 #define WLAN_EXT_CAPA8_OPMODE_NOTIF	BIT(6)
-#define WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED	BIT(7)
 
 /* TDLS specific payload type in the LLC/SNAP header */
 #define WLAN_TDLS_SNAP_RFTYPE	0x2

include/net/cfg80211.h

@@ -2369,8 +2369,7 @@ struct cfg80211_qos_map {
  *	method returns 0.)
  *
  * @mgmt_frame_register: Notify driver that a management frame type was
- *	registered. Note that this callback may not sleep, and cannot run
+ *	registered. The callback is allowed to sleep.
- *	concurrently with itself.
  *
  * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device.
  *	Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may

include/net/mac80211.h

@@ -973,6 +973,10 @@ ieee80211_tx_info_clear_status(struct ieee80211_tx_info *info)
  * @RX_FLAG_IV_STRIPPED: The IV/ICV are stripped from this frame.
  *	If this flag is set, the stack cannot do any replay detection
  *	hence the driver or hardware will have to do that.
+ * @RX_FLAG_PN_VALIDATED: Currently only valid for CCMP/GCMP frames, this
+ *	flag indicates that the PN was verified for replay protection.
+ *	Note that this flag is also currently only supported when a frame
+ *	is also decrypted (ie. @RX_FLAG_DECRYPTED must be set)
  * @RX_FLAG_FAILED_FCS_CRC: Set this flag if the FCS check failed on
  *	the frame.
  * @RX_FLAG_FAILED_PLCP_CRC: Set this flag if the PCLP check failed on
@@ -997,9 +1001,6 @@ ieee80211_tx_info_clear_status(struct ieee80211_tx_info *info)
  * @RX_FLAG_AMPDU_DETAILS: A-MPDU details are known, in particular the reference
  *	number (@ampdu_reference) must be populated and be a distinct number for
  *	each A-MPDU
- * @RX_FLAG_AMPDU_REPORT_ZEROLEN: driver reports 0-length subframes
- * @RX_FLAG_AMPDU_IS_ZEROLEN: This is a zero-length subframe, for
- *	monitoring purposes only
  * @RX_FLAG_AMPDU_LAST_KNOWN: last subframe is known, should be set on all
  *	subframes of a single A-MPDU
  * @RX_FLAG_AMPDU_IS_LAST: this subframe is the last subframe of the A-MPDU
@@ -1039,8 +1040,8 @@ enum mac80211_rx_flags {
 	RX_FLAG_NO_SIGNAL_VAL		= BIT(12),
 	RX_FLAG_HT_GF			= BIT(13),
 	RX_FLAG_AMPDU_DETAILS		= BIT(14),
-	RX_FLAG_AMPDU_REPORT_ZEROLEN	= BIT(15),
+	RX_FLAG_PN_VALIDATED		= BIT(15),
-	RX_FLAG_AMPDU_IS_ZEROLEN	= BIT(16),
+	/* bit 16 free */
 	RX_FLAG_AMPDU_LAST_KNOWN	= BIT(17),
 	RX_FLAG_AMPDU_IS_LAST		= BIT(18),
 	RX_FLAG_AMPDU_DELIM_CRC_ERROR	= BIT(19),
@@ -1491,8 +1492,10 @@ enum ieee80211_key_flags {
  * 	- Temporal Authenticator Rx MIC Key (64 bits)
  * @icv_len: The ICV length for this key type
  * @iv_len: The IV length for this key type
+ * @drv_priv: pointer for driver use
  */
 struct ieee80211_key_conf {
+	void *drv_priv;
 	atomic64_t tx_pn;
 	u32 cipher;
 	u8 icv_len;
@@ -1675,7 +1678,6 @@ struct ieee80211_sta_rates {
  * @tdls: indicates whether the STA is a TDLS peer
  * @tdls_initiator: indicates the STA is an initiator of the TDLS link. Only
  *	valid if the STA is a TDLS peer in the first place.
- * @mfp: indicates whether the STA uses management frame protection or not.
  * @txq: per-TID data TX queues (if driver uses the TXQ abstraction)
  */
 struct ieee80211_sta {
@@ -1693,7 +1695,6 @@ struct ieee80211_sta {
 	struct ieee80211_sta_rates __rcu *rates;
 	bool tdls;
 	bool tdls_initiator;
-	bool mfp;
 
 	struct ieee80211_txq *txq[IEEE80211_NUM_TIDS];
 
@@ -1888,6 +1889,9 @@ struct ieee80211_txq {
  * @IEEE80211_HW_SINGLE_SCAN_ON_ALL_BANDS: The HW supports scanning on all bands
  *	in one command, mac80211 doesn't have to run separate scans per band.
  *
+ * @IEEE80211_HW_TDLS_WIDER_BW: The device/driver supports wider bandwidth
+ *	than then BSS bandwidth for a TDLS link on the base channel.
+ *
  * @NUM_IEEE80211_HW_FLAGS: number of hardware flags, used for sizing arrays
  */
 enum ieee80211_hw_flags {
@@ -1920,6 +1924,7 @@ enum ieee80211_hw_flags {
 	IEEE80211_HW_CHANCTX_STA_CSA,
 	IEEE80211_HW_SUPPORTS_CLONED_SKBS,
 	IEEE80211_HW_SINGLE_SCAN_ON_ALL_BANDS,
+	IEEE80211_HW_TDLS_WIDER_BW,
 
 	/* keep last, obviously */
 	NUM_IEEE80211_HW_FLAGS
@@ -3696,20 +3701,28 @@ void ieee80211_free_hw(struct ieee80211_hw *hw);
 void ieee80211_restart_hw(struct ieee80211_hw *hw);
 
 /**
- * ieee80211_napi_add - initialize mac80211 NAPI context
+ * ieee80211_rx_napi - receive frame from NAPI context
- * @hw: the hardware to initialize the NAPI context on
- * @napi: the NAPI context to initialize
- * @napi_dev: dummy NAPI netdevice, here to not waste the space if the
- *	driver doesn't use NAPI
- * @poll: poll function
- * @weight: default weight
  *
- * See also netif_napi_add().
+ * Use this function to hand received frames to mac80211. The receive
+ * buffer in @skb must start with an IEEE 802.11 header. In case of a
+ * paged @skb is used, the driver is recommended to put the ieee80211
+ * header of the frame on the linear part of the @skb to avoid memory
+ * allocation and/or memcpy by the stack.
+ *
+ * This function may not be called in IRQ context. Calls to this function
+ * for a single hardware must be synchronized against each other. Calls to
+ * this function, ieee80211_rx_ni() and ieee80211_rx_irqsafe() may not be
+ * mixed for a single hardware. Must not run concurrently with
+ * ieee80211_tx_status() or ieee80211_tx_status_ni().
+ *
+ * This function must be called with BHs disabled.
+ *
+ * @hw: the hardware this frame came in on
+ * @skb: the buffer to receive, owned by mac80211 after this call
+ * @napi: the NAPI context
  */
-void ieee80211_napi_add(struct ieee80211_hw *hw, struct napi_struct *napi,
+void ieee80211_rx_napi(struct ieee80211_hw *hw, struct sk_buff *skb,
-			struct net_device *napi_dev,
+		       struct napi_struct *napi);
-			int (*poll)(struct napi_struct *, int),
-			int weight);
 
 /**
  * ieee80211_rx - receive frame
@@ -3731,7 +3744,10 @@ void ieee80211_napi_add(struct ieee80211_hw *hw, struct napi_struct *napi,
  * @hw: the hardware this frame came in on
  * @skb: the buffer to receive, owned by mac80211 after this call
  */
-void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb);
+static inline void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb)
+{
+	ieee80211_rx_napi(hw, skb, NULL);
+}
 
 /**
  * ieee80211_rx_irqsafe - receive frame
@@ -4314,19 +4330,6 @@ void ieee80211_get_tkip_rx_p1k(struct ieee80211_key_conf *keyconf,
 void ieee80211_get_tkip_p2k(struct ieee80211_key_conf *keyconf,
 			    struct sk_buff *skb, u8 *p2k);
 
-/**
- * ieee80211_aes_cmac_calculate_k1_k2 - calculate the AES-CMAC sub keys
- *
- * This function computes the two AES-CMAC sub-keys, based on the
- * previously installed master key.
- *
- * @keyconf: the parameter passed with the set key
- * @k1: a buffer to be filled with the 1st sub-key
- * @k2: a buffer to be filled with the 2nd sub-key
- */
-void ieee80211_aes_cmac_calculate_k1_k2(struct ieee80211_key_conf *keyconf,
-					u8 *k1, u8 *k2);
-
 /**
  * ieee80211_get_key_tx_seq - get key TX sequence counter
  *

net/mac80211/Kconfig

@@ -7,7 +7,6 @@ config MAC80211
 	select CRYPTO_CCM
 	select CRYPTO_GCM
 	select CRC32
-	select AVERAGE
 	---help---
 	  This option enables the hardware independent IEEE 802.11
 	  networking stack.

net/mac80211/Makefile

@@ -3,6 +3,7 @@ obj-$(CONFIG_MAC80211) += mac80211.o
 # mac80211 objects
 mac80211-y := \
 	main.o status.o \
+	driver-ops.o \
 	sta_info.o \
 	wep.o \
 	wpa.o \

net/mac80211/aes_cmac.c

@@ -145,20 +145,3 @@ void ieee80211_aes_cmac_key_free(struct crypto_cipher *tfm)
 {
 	crypto_free_cipher(tfm);
 }
-
-void ieee80211_aes_cmac_calculate_k1_k2(struct ieee80211_key_conf *keyconf,
-					u8 *k1, u8 *k2)
-{
-	u8 l[AES_BLOCK_SIZE] = {};
-	struct ieee80211_key *key =
-		container_of(keyconf, struct ieee80211_key, conf);
-
-	crypto_cipher_encrypt_one(key->u.aes_cmac.tfm, l, l);
-
-	memcpy(k1, l, AES_BLOCK_SIZE);
-	gf_mulx(k1);
-
-	memcpy(k2, k1, AES_BLOCK_SIZE);
-	gf_mulx(k2);
-}
-EXPORT_SYMBOL(ieee80211_aes_cmac_calculate_k1_k2);

net/mac80211/cfg.c

@@ -1019,6 +1019,65 @@ static int sta_apply_auth_flags(struct ieee80211_local *local,
 	return 0;
 }
 
+static void sta_apply_mesh_params(struct ieee80211_local *local,
+				  struct sta_info *sta,
+				  struct station_parameters *params)
+{
+#ifdef CONFIG_MAC80211_MESH
+	struct ieee80211_sub_if_data *sdata = sta->sdata;
+	u32 changed = 0;
+
+	if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
+		switch (params->plink_state) {
+		case NL80211_PLINK_ESTAB:
+			if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
+				changed = mesh_plink_inc_estab_count(sdata);
+			sta->mesh->plink_state = params->plink_state;
+
+			ieee80211_mps_sta_status_update(sta);
+			changed |= ieee80211_mps_set_sta_local_pm(sta,
+				      sdata->u.mesh.mshcfg.power_mode);
+			break;
+		case NL80211_PLINK_LISTEN:
+		case NL80211_PLINK_BLOCKED:
+		case NL80211_PLINK_OPN_SNT:
+		case NL80211_PLINK_OPN_RCVD:
+		case NL80211_PLINK_CNF_RCVD:
+		case NL80211_PLINK_HOLDING:
+			if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
+				changed = mesh_plink_dec_estab_count(sdata);
+			sta->mesh->plink_state = params->plink_state;
+
+			ieee80211_mps_sta_status_update(sta);
+			changed |= ieee80211_mps_set_sta_local_pm(sta,
+					NL80211_MESH_POWER_UNKNOWN);
+			break;
+		default:
+			/*  nothing  */
+			break;
+		}
+	}
+
+	switch (params->plink_action) {
+	case NL80211_PLINK_ACTION_NO_ACTION:
+		/* nothing */
+		break;
+	case NL80211_PLINK_ACTION_OPEN:
+		changed |= mesh_plink_open(sta);
+		break;
+	case NL80211_PLINK_ACTION_BLOCK:
+		changed |= mesh_plink_block(sta);
+		break;
+	}
+
+	if (params->local_pm)
+		changed |= ieee80211_mps_set_sta_local_pm(sta,
+							  params->local_pm);
+
+	ieee80211_mbss_info_change_notify(sdata, changed);
+#endif
+}
+
 static int sta_apply_parameters(struct ieee80211_local *local,
 				struct sta_info *sta,
 				struct station_parameters *params)
@@ -1076,7 +1135,6 @@ static int sta_apply_parameters(struct ieee80211_local *local,
 	}
 
 	if (mask & BIT(NL80211_STA_FLAG_MFP)) {
-		sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
 		if (set & BIT(NL80211_STA_FLAG_MFP))
 			set_sta_flag(sta, WLAN_STA_MFP);
 		else
@@ -1097,6 +1155,12 @@ static int sta_apply_parameters(struct ieee80211_local *local,
 	    params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
 		set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
 
+	if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
+	    ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
+	    params->ext_capab_len >= 8 &&
+	    params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
+		set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
+
 	if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
 		sta->sta.uapsd_queues = params->uapsd_queues;
 		sta->sta.max_sp = params->max_sp;
@@ -1144,62 +1208,8 @@ static int sta_apply_parameters(struct ieee80211_local *local,
 					      band, false);
 	}
 
-	if (ieee80211_vif_is_mesh(&sdata->vif)) {
+	if (ieee80211_vif_is_mesh(&sdata->vif))
-#ifdef CONFIG_MAC80211_MESH
+		sta_apply_mesh_params(local, sta, params);
-		u32 changed = 0;
-
-		if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
-			switch (params->plink_state) {
-			case NL80211_PLINK_ESTAB:
-				if (sta->plink_state != NL80211_PLINK_ESTAB)
-					changed = mesh_plink_inc_estab_count(
-							sdata);
-				sta->plink_state = params->plink_state;
-
-				ieee80211_mps_sta_status_update(sta);
-				changed |= ieee80211_mps_set_sta_local_pm(sta,
-					      sdata->u.mesh.mshcfg.power_mode);
-				break;
-			case NL80211_PLINK_LISTEN:
-			case NL80211_PLINK_BLOCKED:
-			case NL80211_PLINK_OPN_SNT:
-			case NL80211_PLINK_OPN_RCVD:
-			case NL80211_PLINK_CNF_RCVD:
-			case NL80211_PLINK_HOLDING:
-				if (sta->plink_state == NL80211_PLINK_ESTAB)
-					changed = mesh_plink_dec_estab_count(
-							sdata);
-				sta->plink_state = params->plink_state;
-
-				ieee80211_mps_sta_status_update(sta);
-				changed |= ieee80211_mps_set_sta_local_pm(sta,
-						NL80211_MESH_POWER_UNKNOWN);
-				break;
-			default:
-				/*  nothing  */
-				break;
-			}
-		}
-
-		switch (params->plink_action) {
-		case NL80211_PLINK_ACTION_NO_ACTION:
-			/* nothing */
-			break;
-		case NL80211_PLINK_ACTION_OPEN:
-			changed |= mesh_plink_open(sta);
-			break;
-		case NL80211_PLINK_ACTION_BLOCK:
-			changed |= mesh_plink_block(sta);
-			break;
-		}
-
-		if (params->local_pm)
-			changed |=
-			      ieee80211_mps_set_sta_local_pm(sta,
-							     params->local_pm);
-		ieee80211_mbss_info_change_notify(sdata, changed);
-#endif
-	}
 
 	/* set the STA state after all sta info from usermode has been set */
 	if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
@@ -2358,6 +2368,8 @@ int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
 	const u8 *ap;
 	enum ieee80211_smps_mode old_req;
 	int err;
+	struct sta_info *sta;
+	bool tdls_peer_found = false;
 
 	lockdep_assert_held(&sdata->wdev.mtx);
 
@@ -2382,11 +2394,22 @@ int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
 
 	ap = sdata->u.mgd.associated->bssid;
 
+	rcu_read_lock();
+	list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
+		if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
+		    !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
+			continue;
+
+		tdls_peer_found = true;
+		break;
+	}
+	rcu_read_unlock();
+
 	if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
-		if (sdata->u.mgd.powersave)
+		if (tdls_peer_found || !sdata->u.mgd.powersave)
-			smps_mode = IEEE80211_SMPS_DYNAMIC;
-		else
 			smps_mode = IEEE80211_SMPS_OFF;
+		else
+			smps_mode = IEEE80211_SMPS_DYNAMIC;
 	}
 
 	/* send SM PS frame to AP */
@@ -2394,6 +2417,8 @@ int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
 					 ap, ap);
 	if (err)
 		sdata->u.mgd.req_smps = old_req;
+	else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
+		ieee80211_teardown_tdls_peers(sdata);
 
 	return err;
 }
@@ -2479,16 +2504,26 @@ static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
 		sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
 		memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
 		       sizeof(mask->control[i].ht_mcs));
+		memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
+		       mask->control[i].vht_mcs,
+		       sizeof(mask->control[i].vht_mcs));
 
 		sdata->rc_has_mcs_mask[i] = false;
+		sdata->rc_has_vht_mcs_mask[i] = false;
 		if (!sband)
 			continue;
 
-		for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
+		for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
-			if (~sdata->rc_rateidx_mcs_mask[i][j]) {
+			if (~sdata->rc_rateidx_mcs_mask[i][j])
 				sdata->rc_has_mcs_mask[i] = true;
+
+			if (~sdata->rc_rateidx_vht_mcs_mask[i][j])
+				sdata->rc_has_vht_mcs_mask[i] = true;
+
+			if (sdata->rc_has_mcs_mask[i] &&
+			    sdata->rc_has_vht_mcs_mask[i])
 				break;
-			}
+		}
 	}
 
 	return 0;

net/mac80211/chan.c

@@ -190,7 +190,7 @@ ieee80211_find_reservation_chanctx(struct ieee80211_local *local,
 	return NULL;
 }
 
-static enum nl80211_chan_width ieee80211_get_sta_bw(struct ieee80211_sta *sta)
+enum nl80211_chan_width ieee80211_get_sta_bw(struct ieee80211_sta *sta)
 {
 	switch (sta->bandwidth) {
 	case IEEE80211_STA_RX_BW_20:
@@ -264,9 +264,17 @@ ieee80211_get_chanctx_max_required_bw(struct ieee80211_local *local,
 		case NL80211_IFTYPE_AP_VLAN:
 			width = ieee80211_get_max_required_bw(sdata);
 			break;
+		case NL80211_IFTYPE_STATION:
+			/*
+			 * The ap's sta->bandwidth is not set yet at this
+			 * point, so take the width from the chandef, but
+			 * account also for TDLS peers
+			 */
+			width = max(vif->bss_conf.chandef.width,
+				    ieee80211_get_max_required_bw(sdata));
+			break;
 		case NL80211_IFTYPE_P2P_DEVICE:
 			continue;
-		case NL80211_IFTYPE_STATION:
 		case NL80211_IFTYPE_ADHOC:
 		case NL80211_IFTYPE_WDS:
 		case NL80211_IFTYPE_MESH_POINT:
@@ -554,12 +562,13 @@ static void ieee80211_free_chanctx(struct ieee80211_local *local,
 	kfree_rcu(ctx, rcu_head);
 }
 
-static void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
+void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
-					      struct ieee80211_chanctx *ctx)
+				       struct ieee80211_chanctx *ctx)
 {
 	struct ieee80211_chanctx_conf *conf = &ctx->conf;
 	struct ieee80211_sub_if_data *sdata;
 	const struct cfg80211_chan_def *compat = NULL;
+	struct sta_info *sta;
 
 	lockdep_assert_held(&local->chanctx_mtx);
 
@@ -581,6 +590,20 @@ static void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
 		if (WARN_ON_ONCE(!compat))
 			break;
 	}
+
+	/* TDLS peers can sometimes affect the chandef width */
+	list_for_each_entry_rcu(sta, &local->sta_list, list) {
+		if (!sta->uploaded ||
+		    !test_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW) ||
+		    !test_sta_flag(sta, WLAN_STA_AUTHORIZED) ||
+		    !sta->tdls_chandef.chan)
+			continue;
+
+		compat = cfg80211_chandef_compatible(&sta->tdls_chandef,
+						     compat);
+		if (WARN_ON_ONCE(!compat))
+			break;
+	}
 	rcu_read_unlock();
 
 	if (!compat)

net/mac80211/debugfs.c

@@ -122,6 +122,7 @@ static const char *hw_flag_names[NUM_IEEE80211_HW_FLAGS + 1] = {
 	FLAG(CHANCTX_STA_CSA),
 	FLAG(SUPPORTS_CLONED_SKBS),
 	FLAG(SINGLE_SCAN_ON_ALL_BANDS),
+	FLAG(TDLS_WIDER_BW),
 
 	/* keep last for the build bug below */
 	(void *)0x1
@@ -277,7 +278,6 @@ void debugfs_hw_add(struct ieee80211_local *local)
 	DEBUGFS_STATS_ADD(rx_handlers_queued);
 	DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc);
 	DEBUGFS_STATS_ADD(rx_handlers_drop_defrag);
-	DEBUGFS_STATS_ADD(rx_handlers_drop_short);
 	DEBUGFS_STATS_ADD(tx_expand_skb_head);
 	DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned);
 	DEBUGFS_STATS_ADD(rx_expand_skb_head_defrag);

net/mac80211/debugfs_key.c

@@ -57,7 +57,6 @@ KEY_CONF_FILE(keylen, D);
 KEY_CONF_FILE(keyidx, D);
 KEY_CONF_FILE(hw_key_idx, D);
 KEY_FILE(flags, X);
-KEY_FILE(tx_rx_count, D);
 KEY_READ(ifindex, sdata->name, "%s\n");
 KEY_OPS(ifindex);
 
@@ -310,7 +309,6 @@ void ieee80211_debugfs_key_add(struct ieee80211_key *key)
 	DEBUGFS_ADD(flags);
 	DEBUGFS_ADD(keyidx);
 	DEBUGFS_ADD(hw_key_idx);
-	DEBUGFS_ADD(tx_rx_count);
 	DEBUGFS_ADD(algorithm);
 	DEBUGFS_ADD(tx_spec);
 	DEBUGFS_ADD(rx_spec);

net/mac80211/debugfs_netdev.c

@@ -186,6 +186,38 @@ IEEE80211_IF_FILE(rc_rateidx_mcs_mask_2ghz,
 IEEE80211_IF_FILE(rc_rateidx_mcs_mask_5ghz,
 		  rc_rateidx_mcs_mask[IEEE80211_BAND_5GHZ], HEXARRAY);
 
+static ssize_t ieee80211_if_fmt_rc_rateidx_vht_mcs_mask_2ghz(
+				const struct ieee80211_sub_if_data *sdata,
+				char *buf, int buflen)
+{
+	int i, len = 0;
+	const u16 *mask = sdata->rc_rateidx_vht_mcs_mask[IEEE80211_BAND_2GHZ];
+
+	for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
+		len += scnprintf(buf + len, buflen - len, "%04x ", mask[i]);
+	len += scnprintf(buf + len, buflen - len, "\n");
+
+	return len;
+}
+
+IEEE80211_IF_FILE_R(rc_rateidx_vht_mcs_mask_2ghz);
+
+static ssize_t ieee80211_if_fmt_rc_rateidx_vht_mcs_mask_5ghz(
+				const struct ieee80211_sub_if_data *sdata,
+				char *buf, int buflen)
+{
+	int i, len = 0;
+	const u16 *mask = sdata->rc_rateidx_vht_mcs_mask[IEEE80211_BAND_5GHZ];
+
+	for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
+		len += scnprintf(buf + len, buflen - len, "%04x ", mask[i]);
+	len += scnprintf(buf + len, buflen - len, "\n");
+
+	return len;
+}
+
+IEEE80211_IF_FILE_R(rc_rateidx_vht_mcs_mask_5ghz);
+
 IEEE80211_IF_FILE(flags, flags, HEX);
 IEEE80211_IF_FILE(state, state, LHEX);
 IEEE80211_IF_FILE(txpower, vif.bss_conf.txpower, DEC);
@@ -565,6 +597,8 @@ static void add_common_files(struct ieee80211_sub_if_data *sdata)
 	DEBUGFS_ADD(rc_rateidx_mask_5ghz);
 	DEBUGFS_ADD(rc_rateidx_mcs_mask_2ghz);
 	DEBUGFS_ADD(rc_rateidx_mcs_mask_5ghz);
+	DEBUGFS_ADD(rc_rateidx_vht_mcs_mask_2ghz);
+	DEBUGFS_ADD(rc_rateidx_vht_mcs_mask_5ghz);
 	DEBUGFS_ADD(hw_queues);
 }
 

net/mac80211/driver-ops.c

@@ -0,0 +1,41 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <net/mac80211.h>
+#include "ieee80211_i.h"
+#include "trace.h"
+#include "driver-ops.h"
+
+__must_check
+int drv_sta_state(struct ieee80211_local *local,
+		  struct ieee80211_sub_if_data *sdata,
+		  struct sta_info *sta,
+		  enum ieee80211_sta_state old_state,
+		  enum ieee80211_sta_state new_state)
+{
+	int ret = 0;
+
+	might_sleep();
+
+	sdata = get_bss_sdata(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return -EIO;
+
+	trace_drv_sta_state(local, sdata, &sta->sta, old_state, new_state);
+	if (local->ops->sta_state) {
+		ret = local->ops->sta_state(&local->hw, &sdata->vif, &sta->sta,
+					    old_state, new_state);
+	} else if (old_state == IEEE80211_STA_AUTH &&
+		   new_state == IEEE80211_STA_ASSOC) {
+		ret = drv_sta_add(local, sdata, &sta->sta);
+		if (ret == 0)
+			sta->uploaded = true;
+	} else if (old_state == IEEE80211_STA_ASSOC &&
+		   new_state == IEEE80211_STA_AUTH) {
+		drv_sta_remove(local, sdata, &sta->sta);
+	}
+	trace_drv_return_int(local, ret);
+	return ret;
+}

net/mac80211/driver-ops.h

@@ -573,37 +573,12 @@ static inline void drv_sta_pre_rcu_remove(struct ieee80211_local *local,
 	trace_drv_return_void(local);
 }
 
-static inline __must_check
+__must_check
 int drv_sta_state(struct ieee80211_local *local,
 		  struct ieee80211_sub_if_data *sdata,
 		  struct sta_info *sta,
 		  enum ieee80211_sta_state old_state,
-		  enum ieee80211_sta_state new_state)
+		  enum ieee80211_sta_state new_state);
-{
-	int ret = 0;
-
-	might_sleep();
-
-	sdata = get_bss_sdata(sdata);
-	if (!check_sdata_in_driver(sdata))
-		return -EIO;
-
-	trace_drv_sta_state(local, sdata, &sta->sta, old_state, new_state);
-	if (local->ops->sta_state) {
-		ret = local->ops->sta_state(&local->hw, &sdata->vif, &sta->sta,
-					    old_state, new_state);
-	} else if (old_state == IEEE80211_STA_AUTH &&
-		   new_state == IEEE80211_STA_ASSOC) {
-		ret = drv_sta_add(local, sdata, &sta->sta);
-		if (ret == 0)
-			sta->uploaded = true;
-	} else if (old_state == IEEE80211_STA_ASSOC &&
-		   new_state == IEEE80211_STA_AUTH) {
-		drv_sta_remove(local, sdata, &sta->sta);
-	}
-	trace_drv_return_int(local, ret);
-	return ret;
-}
 
 static inline void drv_sta_rc_update(struct ieee80211_local *local,
 				     struct ieee80211_sub_if_data *sdata,

net/mac80211/ieee80211_i.h

@@ -84,13 +84,13 @@ struct ieee80211_local;
 #define IEEE80211_DEAUTH_FRAME_LEN	(24 /* hdr */ + 2 /* reason */)
 
 struct ieee80211_fragment_entry {
-	unsigned long first_frag_time;
-	unsigned int seq;
-	unsigned int rx_queue;
-	unsigned int last_frag;
-	unsigned int extra_len;
 	struct sk_buff_head skb_list;
-	int ccmp; /* Whether fragments were encrypted with CCMP */
+	unsigned long first_frag_time;
+	u16 seq;
+	u16 extra_len;
+	u16 last_frag;
+	u8 rx_queue;
+	bool ccmp; /* Whether fragments were encrypted with CCMP */
 	u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
 };
 
@@ -181,7 +181,6 @@ typedef unsigned __bitwise__ ieee80211_rx_result;
 
 /**
  * enum ieee80211_packet_rx_flags - packet RX flags
- * @IEEE80211_RX_FRAGMENTED: fragmented frame
  * @IEEE80211_RX_AMSDU: a-MSDU packet
  * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
  * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
@@ -190,7 +189,6 @@ typedef unsigned __bitwise__ ieee80211_rx_result;
  * @rx_flags field of &struct ieee80211_rx_status.
  */
 enum ieee80211_packet_rx_flags {
-	IEEE80211_RX_FRAGMENTED			= BIT(2),
 	IEEE80211_RX_AMSDU			= BIT(3),
 	IEEE80211_RX_MALFORMED_ACTION_FRM	= BIT(4),
 	IEEE80211_RX_DEFERRED_RELEASE		= BIT(5),
@@ -202,8 +200,6 @@ enum ieee80211_packet_rx_flags {
  * @IEEE80211_RX_CMNTR: received on cooked monitor already
  * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
  *	to cfg80211_report_obss_beacon().
- * @IEEE80211_RX_REORDER_TIMER: this frame is released by the
- *	reorder buffer timeout timer, not the normal RX path
  *
  * These flags are used across handling multiple interfaces
  * for a single frame.
@@ -211,10 +207,10 @@ enum ieee80211_packet_rx_flags {
 enum ieee80211_rx_flags {
 	IEEE80211_RX_CMNTR		= BIT(0),
 	IEEE80211_RX_BEACON_REPORTED	= BIT(1),
-	IEEE80211_RX_REORDER_TIMER	= BIT(2),
 };
 
 struct ieee80211_rx_data {
+	struct napi_struct *napi;
 	struct sk_buff *skb;
 	struct ieee80211_local *local;
 	struct ieee80211_sub_if_data *sdata;
@@ -725,6 +721,7 @@ struct ieee80211_if_mesh {
  *	back to wireless media and to the local net stack.
  * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
  * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
+ * @IEEE80211_SDATA_MU_MIMO_OWNER: indicates interface owns MU-MIMO capability
  */
 enum ieee80211_sub_if_data_flags {
 	IEEE80211_SDATA_ALLMULTI		= BIT(0),
@@ -732,6 +729,7 @@ enum ieee80211_sub_if_data_flags {
 	IEEE80211_SDATA_DONT_BRIDGE_PACKETS	= BIT(3),
 	IEEE80211_SDATA_DISCONNECT_RESUME	= BIT(4),
 	IEEE80211_SDATA_IN_DRIVER		= BIT(5),
+	IEEE80211_SDATA_MU_MIMO_OWNER		= BIT(6),
 };
 
 /**
@@ -903,6 +901,9 @@ struct ieee80211_sub_if_data {
 	bool rc_has_mcs_mask[IEEE80211_NUM_BANDS];
 	u8  rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN];
 
+	bool rc_has_vht_mcs_mask[IEEE80211_NUM_BANDS];
+	u16 rc_rateidx_vht_mcs_mask[IEEE80211_NUM_BANDS][NL80211_VHT_NSS_MAX];
+
 	union {
 		struct ieee80211_if_ap ap;
 		struct ieee80211_if_wds wds;
@@ -1010,7 +1011,6 @@ enum sdata_queue_type {
 	IEEE80211_SDATA_QUEUE_AGG_STOP		= 2,
 	IEEE80211_SDATA_QUEUE_RX_AGG_START	= 3,
 	IEEE80211_SDATA_QUEUE_RX_AGG_STOP	= 4,
-	IEEE80211_SDATA_QUEUE_TDLS_CHSW		= 5,
 };
 
 enum {
@@ -1286,7 +1286,6 @@ struct ieee80211_local {
 	unsigned int rx_handlers_queued;
 	unsigned int rx_handlers_drop_nullfunc;
 	unsigned int rx_handlers_drop_defrag;
-	unsigned int rx_handlers_drop_short;
 	unsigned int tx_expand_skb_head;
 	unsigned int tx_expand_skb_head_cloned;
 	unsigned int rx_expand_skb_head_defrag;
@@ -1348,14 +1347,16 @@ struct ieee80211_local {
 
 	struct ieee80211_sub_if_data __rcu *p2p_sdata;
 
-	struct napi_struct *napi;
-
 	/* virtual monitor interface */
 	struct ieee80211_sub_if_data __rcu *monitor_sdata;
 	struct cfg80211_chan_def monitor_chandef;
 
 	/* extended capabilities provided by mac80211 */
 	u8 ext_capa[8];
+
+	/* TDLS channel switch */
+	struct work_struct tdls_chsw_work;
+	struct sk_buff_head skb_queue_tdls_chsw;
 };
 
 static inline struct ieee80211_sub_if_data *
@@ -1715,6 +1716,8 @@ void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
 				 enum ieee80211_band band, bool nss_only);
 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
 				      struct ieee80211_sta_vht_cap *vht_cap);
+void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
+				     u16 vht_mask[NL80211_VHT_NSS_MAX]);
 
 /* Spectrum management */
 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
@@ -1763,8 +1766,6 @@ static inline int __ieee80211_resume(struct ieee80211_hw *hw)
 
 /* utility functions/constants */
 extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
-u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
-			enum nl80211_iftype type);
 int ieee80211_frame_duration(enum ieee80211_band band, size_t len,
 			     int rate, int erp, int short_preamble,
 			     int shift);
@@ -2042,6 +2043,9 @@ int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
 				 enum ieee80211_chanctx_mode chanmode,
 				 u8 radar_detect);
 int ieee80211_max_num_channels(struct ieee80211_local *local);
+enum nl80211_chan_width ieee80211_get_sta_bw(struct ieee80211_sta *sta);
+void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
+				       struct ieee80211_chanctx *ctx);
 
 /* TDLS */
 int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
@@ -2058,8 +2062,8 @@ int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
 void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
 					  struct net_device *dev,
 					  const u8 *addr);
-void ieee80211_process_tdls_channel_switch(struct ieee80211_sub_if_data *sdata,
+void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata);
-					   struct sk_buff *skb);
+void ieee80211_tdls_chsw_work(struct work_struct *wk);
 
 extern const struct ethtool_ops ieee80211_ethtool_ops;
 

net/mac80211/iface.c

@@ -1242,8 +1242,6 @@ static void ieee80211_iface_work(struct work_struct *work)
 							WLAN_BACK_RECIPIENT, 0,
 							false);
 			mutex_unlock(&local->sta_mtx);
-		} else if (skb->pkt_type == IEEE80211_SDATA_QUEUE_TDLS_CHSW) {
-			ieee80211_process_tdls_channel_switch(sdata, skb);
 		} else if (ieee80211_is_action(mgmt->frame_control) &&
 			   mgmt->u.action.category == WLAN_CATEGORY_BACK) {
 			int len = skb->len;
@@ -1790,13 +1788,23 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name,
 		sband = local->hw.wiphy->bands[i];
 		sdata->rc_rateidx_mask[i] =
 			sband ? (1 << sband->n_bitrates) - 1 : 0;
-		if (sband)
+		if (sband) {
+			__le16 cap;
+			u16 *vht_rate_mask;
+
 			memcpy(sdata->rc_rateidx_mcs_mask[i],
 			       sband->ht_cap.mcs.rx_mask,
 			       sizeof(sdata->rc_rateidx_mcs_mask[i]));
-		else
+
+			cap = sband->vht_cap.vht_mcs.rx_mcs_map;
+			vht_rate_mask = sdata->rc_rateidx_vht_mcs_mask[i];
+			ieee80211_get_vht_mask_from_cap(cap, vht_rate_mask);
+		} else {
 			memset(sdata->rc_rateidx_mcs_mask[i], 0,
 			       sizeof(sdata->rc_rateidx_mcs_mask[i]));
+			memset(sdata->rc_rateidx_vht_mcs_mask[i], 0,
+			       sizeof(sdata->rc_rateidx_vht_mcs_mask[i]));
+		}
 	}
 
 	ieee80211_set_default_queues(sdata);

net/mac80211/key.c

@@ -336,7 +336,6 @@ static void ieee80211_key_replace(struct ieee80211_sub_if_data *sdata,
 			ieee80211_check_fast_xmit(sta);
 		} else {
 			rcu_assign_pointer(sta->gtk[idx], new);
-			sta->gtk_idx = idx;
 		}
 	} else {
 		defunikey = old &&

net/mac80211/key.h

@@ -115,9 +115,6 @@ struct ieee80211_key {
 		} gen;
 	} u;
 
-	/* number of times this key has been used */
-	int tx_rx_count;
-
 #ifdef CONFIG_MAC80211_DEBUGFS
 	struct {
 		struct dentry *stalink;

net/mac80211/main.c

@@ -629,6 +629,8 @@ struct ieee80211_hw *ieee80211_alloc_hw_nm(size_t priv_data_len,
 	INIT_WORK(&local->sched_scan_stopped_work,
 		  ieee80211_sched_scan_stopped_work);
 
+	INIT_WORK(&local->tdls_chsw_work, ieee80211_tdls_chsw_work);
+
 	spin_lock_init(&local->ack_status_lock);
 	idr_init(&local->ack_status_frames);
 
@@ -645,6 +647,7 @@ struct ieee80211_hw *ieee80211_alloc_hw_nm(size_t priv_data_len,
 
 	skb_queue_head_init(&local->skb_queue);
 	skb_queue_head_init(&local->skb_queue_unreliable);
+	skb_queue_head_init(&local->skb_queue_tdls_chsw);
 
 	ieee80211_alloc_led_names(local);
 
@@ -1132,18 +1135,6 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 }
 EXPORT_SYMBOL(ieee80211_register_hw);
 
-void ieee80211_napi_add(struct ieee80211_hw *hw, struct napi_struct *napi,
-			struct net_device *napi_dev,
-			int (*poll)(struct napi_struct *, int),
-			int weight)
-{
-	struct ieee80211_local *local = hw_to_local(hw);
-
-	netif_napi_add(napi_dev, napi, poll, weight);
-	local->napi = napi;
-}
-EXPORT_SYMBOL_GPL(ieee80211_napi_add);
-
 void ieee80211_unregister_hw(struct ieee80211_hw *hw)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
@@ -1173,6 +1164,7 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw)
 
 	cancel_work_sync(&local->restart_work);
 	cancel_work_sync(&local->reconfig_filter);
+	cancel_work_sync(&local->tdls_chsw_work);
 	flush_work(&local->sched_scan_stopped_work);
 
 	ieee80211_clear_tx_pending(local);
@@ -1183,6 +1175,7 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw)
 		wiphy_warn(local->hw.wiphy, "skb_queue not empty\n");
 	skb_queue_purge(&local->skb_queue);
 	skb_queue_purge(&local->skb_queue_unreliable);
+	skb_queue_purge(&local->skb_queue_tdls_chsw);
 
 	destroy_workqueue(local->workqueue);
 	wiphy_unregister(local->hw.wiphy);

net/mac80211/mesh.c

@@ -158,7 +158,7 @@ void mesh_sta_cleanup(struct sta_info *sta)
 	changed = mesh_accept_plinks_update(sdata);
 	if (!sdata->u.mesh.user_mpm) {
 		changed |= mesh_plink_deactivate(sta);
-		del_timer_sync(&sta->plink_timer);
+		del_timer_sync(&sta->mesh->plink_timer);
 	}
 
 	if (changed)

net/mac80211/mesh_hwmp.c

@@ -19,15 +19,6 @@
 
 #define MAX_PREQ_QUEUE_LEN	64
 
-/* Destination only */
-#define MP_F_DO	0x1
-/* Reply and forward */
-#define MP_F_RF	0x2
-/* Unknown Sequence Number */
-#define MP_F_USN    0x01
-/* Reason code Present */
-#define MP_F_RCODE  0x02
-
 static void mesh_queue_preq(struct mesh_path *, u8);
 
 static inline u32 u32_field_get(const u8 *preq_elem, int offset, bool ae)
@@ -79,6 +70,12 @@ static inline u16 u16_field_get(const u8 *preq_elem, int offset, bool ae)
 #define MSEC_TO_TU(x) (x*1000/1024)
 #define SN_GT(x, y) ((s32)(y - x) < 0)
 #define SN_LT(x, y) ((s32)(x - y) < 0)
+#define MAX_SANE_SN_DELTA 32
+
+static inline u32 SN_DELTA(u32 x, u32 y)
+{
+	return x >= y ? x - y : y - x;
+}
 
 #define net_traversal_jiffies(s) \
 	msecs_to_jiffies(s->u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime)
@@ -279,15 +276,10 @@ int mesh_path_error_tx(struct ieee80211_sub_if_data *sdata,
 	*pos++ = ttl;
 	/* number of destinations */
 	*pos++ = 1;
-	/*
+	/* Flags field has AE bit only as defined in
-	 * flags bit, bit 1 is unset if we know the sequence number and
+	 * sec 8.4.2.117 IEEE802.11-2012
-	 * bit 2 is set if we have a reason code
 	 */
 	*pos = 0;
-	if (!target_sn)
-		*pos |= MP_F_USN;
-	if (target_rcode)
-		*pos |= MP_F_RCODE;
 	pos++;
 	memcpy(pos, target, ETH_ALEN);
 	pos += ETH_ALEN;
@@ -316,8 +308,9 @@ void ieee80211s_update_metric(struct ieee80211_local *local,
 	failed = !(txinfo->flags & IEEE80211_TX_STAT_ACK);
 
 	/* moving average, scaled to 100 */
-	sta->fail_avg = ((80 * sta->fail_avg + 5) / 100 + 20 * failed);
+	sta->mesh->fail_avg =
-	if (sta->fail_avg > 95)
+		((80 * sta->mesh->fail_avg + 5) / 100 + 20 * failed);
+	if (sta->mesh->fail_avg > 95)
 		mesh_plink_broken(sta);
 }
 
@@ -333,7 +326,7 @@ static u32 airtime_link_metric_get(struct ieee80211_local *local,
 	u32 tx_time, estimated_retx;
 	u64 result;
 
-	if (sta->fail_avg >= 100)
+	if (sta->mesh->fail_avg >= 100)
 		return MAX_METRIC;
 
 	sta_set_rate_info_tx(sta, &sta->last_tx_rate, &rinfo);
@@ -341,7 +334,7 @@ static u32 airtime_link_metric_get(struct ieee80211_local *local,
 	if (WARN_ON(!rate))
 		return MAX_METRIC;
 
-	err = (sta->fail_avg << ARITH_SHIFT) / 100;
+	err = (sta->mesh->fail_avg << ARITH_SHIFT) / 100;
 
 	/* bitrate is in units of 100 Kbps, while we need rate in units of
 	 * 1Mbps. This will be corrected on tx_time computation.
@@ -441,6 +434,26 @@ static u32 hwmp_route_info_get(struct ieee80211_sub_if_data *sdata,
 					process = false;
 					fresh_info = false;
 				}
+			} else if (!(mpath->flags & MESH_PATH_ACTIVE)) {
+				bool have_sn, newer_sn, bounced;
+
+				have_sn = mpath->flags & MESH_PATH_SN_VALID;
+				newer_sn = have_sn && SN_GT(orig_sn, mpath->sn);
+				bounced = have_sn &&
+					  (SN_DELTA(orig_sn, mpath->sn) >
+							MAX_SANE_SN_DELTA);
+
+				if (!have_sn || newer_sn) {
+					/* if SN is newer than what we had
+					 * then we can take it */;
+				} else if (bounced) {
+					/* if SN is way different than what
+					 * we had then assume the other side
+					 * rebooted or restarted */;
+				} else {
+					process = false;
+					fresh_info = false;
+				}
 			}
 		} else {
 			mpath = mesh_path_add(sdata, orig_addr);
@@ -570,15 +583,13 @@ static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata,
 					SN_LT(mpath->sn, target_sn)) {
 				mpath->sn = target_sn;
 				mpath->flags |= MESH_PATH_SN_VALID;
-			} else if ((!(target_flags & MP_F_DO)) &&
+			} else if ((!(target_flags & IEEE80211_PREQ_TO_FLAG)) &&
 					(mpath->flags & MESH_PATH_ACTIVE)) {
 				reply = true;
 				target_metric = mpath->metric;
 				target_sn = mpath->sn;
-				if (target_flags & MP_F_RF)
+				/* Case E2 of sec 13.10.9.3 IEEE 802.11-2012*/
-					target_flags |= MP_F_DO;
+				target_flags |= IEEE80211_PREQ_TO_FLAG;
-				else
-					forward = false;
 			}
 		}
 		rcu_read_unlock();
@@ -736,9 +747,12 @@ static void hwmp_perr_frame_process(struct ieee80211_sub_if_data *sdata,
 		if (mpath->flags & MESH_PATH_ACTIVE &&
 		    ether_addr_equal(ta, sta->sta.addr) &&
 		    (!(mpath->flags & MESH_PATH_SN_VALID) ||
-		    SN_GT(target_sn, mpath->sn))) {
+		    SN_GT(target_sn, mpath->sn)  || target_sn == 0)) {
 			mpath->flags &= ~MESH_PATH_ACTIVE;
-			mpath->sn = target_sn;
+			if (target_sn != 0)
+				mpath->sn = target_sn;
+			else
+				mpath->sn += 1;
 			spin_unlock_bh(&mpath->state_lock);
 			if (!ifmsh->mshcfg.dot11MeshForwarding)
 				goto endperr;
@@ -862,7 +876,7 @@ void mesh_rx_path_sel_frame(struct ieee80211_sub_if_data *sdata,
 
 	rcu_read_lock();
 	sta = sta_info_get(sdata, mgmt->sa);
-	if (!sta || sta->plink_state != NL80211_PLINK_ESTAB) {
+	if (!sta || sta->mesh->plink_state != NL80211_PLINK_ESTAB) {
 		rcu_read_unlock();
 		return;
 	}
@@ -974,7 +988,7 @@ void mesh_path_start_discovery(struct ieee80211_sub_if_data *sdata)
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 	struct mesh_preq_queue *preq_node;
 	struct mesh_path *mpath;
-	u8 ttl, target_flags;
+	u8 ttl, target_flags = 0;
 	const u8 *da;
 	u32 lifetime;
 
@@ -1033,9 +1047,9 @@ void mesh_path_start_discovery(struct ieee80211_sub_if_data *sdata)
 	}
 
 	if (preq_node->flags & PREQ_Q_F_REFRESH)
-		target_flags = MP_F_DO;
+		target_flags |= IEEE80211_PREQ_TO_FLAG;
 	else
-		target_flags = MP_F_RF;
+		target_flags &= ~IEEE80211_PREQ_TO_FLAG;
 
 	spin_unlock_bh(&mpath->state_lock);
 	da = (mpath->is_root) ? mpath->rann_snd_addr : broadcast_addr;
@@ -1176,7 +1190,9 @@ void mesh_path_timer(unsigned long data)
 		spin_unlock_bh(&mpath->state_lock);
 		mesh_queue_preq(mpath, 0);
 	} else {
-		mpath->flags = 0;
+		mpath->flags &= ~(MESH_PATH_RESOLVING |
+				  MESH_PATH_RESOLVED |
+				  MESH_PATH_REQ_QUEUED);
 		mpath->exp_time = jiffies;
 		spin_unlock_bh(&mpath->state_lock);
 		if (!mpath->is_gate && mesh_gate_num(sdata) > 0) {

net/mac80211/mesh_plink.c

@@ -13,10 +13,11 @@
 #include "rate.h"
 #include "mesh.h"
 
+#define PLINK_CNF_AID(mgmt) ((mgmt)->u.action.u.self_prot.variable + 2)
 #define PLINK_GET_LLID(p) (p + 2)
 #define PLINK_GET_PLID(p) (p + 4)
 
-#define mod_plink_timer(s, t) (mod_timer(&s->plink_timer, \
+#define mod_plink_timer(s, t) (mod_timer(&s->mesh->plink_timer, \
 				jiffies + msecs_to_jiffies(t)))
 
 enum plink_event {
@@ -53,18 +54,13 @@ static const char * const mplevents[] = {
 	[CLS_IGNR] = "CLS_IGNR"
 };
 
-static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
-			       enum ieee80211_self_protected_actioncode action,
-			       u8 *da, u16 llid, u16 plid, u16 reason);
-
-
 /* We only need a valid sta if user configured a minimum rssi_threshold. */
 static bool rssi_threshold_check(struct ieee80211_sub_if_data *sdata,
 				 struct sta_info *sta)
 {
 	s32 rssi_threshold = sdata->u.mesh.mshcfg.rssi_threshold;
 	return rssi_threshold == 0 ||
-	       (sta && (s8) -ewma_read(&sta->avg_signal) > rssi_threshold);
+	       (sta && (s8) -ewma_signal_read(&sta->avg_signal) > rssi_threshold);
 }
 
 /**
@@ -72,14 +68,14 @@ static bool rssi_threshold_check(struct ieee80211_sub_if_data *sdata,
  *
  * @sta: mesh peer link to restart
  *
- * Locking: this function must be called holding sta->plink_lock
+ * Locking: this function must be called holding sta->mesh->plink_lock
  */
 static inline void mesh_plink_fsm_restart(struct sta_info *sta)
 {
-	lockdep_assert_held(&sta->plink_lock);
+	lockdep_assert_held(&sta->mesh->plink_lock);
-	sta->plink_state = NL80211_PLINK_LISTEN;
+	sta->mesh->plink_state = NL80211_PLINK_LISTEN;
-	sta->llid = sta->plid = sta->reason = 0;
+	sta->mesh->llid = sta->mesh->plid = sta->mesh->reason = 0;
-	sta->plink_retries = 0;
+	sta->mesh->plink_retries = 0;
 }
 
 /*
@@ -119,7 +115,7 @@ static u32 mesh_set_short_slot_time(struct ieee80211_sub_if_data *sdata)
 	rcu_read_lock();
 	list_for_each_entry_rcu(sta, &local->sta_list, list) {
 		if (sdata != sta->sdata ||
-		    sta->plink_state != NL80211_PLINK_ESTAB)
+		    sta->mesh->plink_state != NL80211_PLINK_ESTAB)
 			continue;
 
 		short_slot = false;
@@ -169,7 +165,7 @@ static u32 mesh_set_ht_prot_mode(struct ieee80211_sub_if_data *sdata)
 	rcu_read_lock();
 	list_for_each_entry_rcu(sta, &local->sta_list, list) {
 		if (sdata != sta->sdata ||
-		    sta->plink_state != NL80211_PLINK_ESTAB)
+		    sta->mesh->plink_state != NL80211_PLINK_ESTAB)
 			continue;
 
 		if (sta->sta.bandwidth > IEEE80211_STA_RX_BW_20)
@@ -204,59 +200,8 @@ static u32 mesh_set_ht_prot_mode(struct ieee80211_sub_if_data *sdata)
 	return BSS_CHANGED_HT;
 }
 
-/**
- * __mesh_plink_deactivate - deactivate mesh peer link
- *
- * @sta: mesh peer link to deactivate
- *
- * All mesh paths with this peer as next hop will be flushed
- * Returns beacon changed flag if the beacon content changed.
- *
- * Locking: the caller must hold sta->plink_lock
- */
-static u32 __mesh_plink_deactivate(struct sta_info *sta)
-{
-	struct ieee80211_sub_if_data *sdata = sta->sdata;
-	u32 changed = 0;
-
-	lockdep_assert_held(&sta->plink_lock);
-
-	if (sta->plink_state == NL80211_PLINK_ESTAB)
-		changed = mesh_plink_dec_estab_count(sdata);
-	sta->plink_state = NL80211_PLINK_BLOCKED;
-	mesh_path_flush_by_nexthop(sta);
-
-	ieee80211_mps_sta_status_update(sta);
-	changed |= ieee80211_mps_set_sta_local_pm(sta,
-			NL80211_MESH_POWER_UNKNOWN);
-
-	return changed;
-}
-
-/**
- * mesh_plink_deactivate - deactivate mesh peer link
- *
- * @sta: mesh peer link to deactivate
- *
- * All mesh paths with this peer as next hop will be flushed
- */
-u32 mesh_plink_deactivate(struct sta_info *sta)
-{
-	struct ieee80211_sub_if_data *sdata = sta->sdata;
-	u32 changed;
-
-	spin_lock_bh(&sta->plink_lock);
-	changed = __mesh_plink_deactivate(sta);
-	sta->reason = WLAN_REASON_MESH_PEER_CANCELED;
-	mesh_plink_frame_tx(sdata, WLAN_SP_MESH_PEERING_CLOSE,
-			    sta->sta.addr, sta->llid, sta->plid,
-			    sta->reason);
-	spin_unlock_bh(&sta->plink_lock);
-
-	return changed;
-}
-
 static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
+			       struct sta_info *sta,
 			       enum ieee80211_self_protected_actioncode action,
 			       u8 *da, u16 llid, u16 plid, u16 reason)
 {
@@ -306,7 +251,7 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
 		if (action == WLAN_SP_MESH_PEERING_CONFIRM) {
 			/* AID */
 			pos = skb_put(skb, 2);
-			put_unaligned_le16(plid, pos);
+			put_unaligned_le16(sta->sta.aid, pos);
 		}
 		if (ieee80211_add_srates_ie(sdata, skb, true, band) ||
 		    ieee80211_add_ext_srates_ie(sdata, skb, true, band) ||
@@ -375,6 +320,58 @@ free:
 	return err;
 }
 
+/**
+ * __mesh_plink_deactivate - deactivate mesh peer link
+ *
+ * @sta: mesh peer link to deactivate
+ *
+ * All mesh paths with this peer as next hop will be flushed
+ * Returns beacon changed flag if the beacon content changed.
+ *
+ * Locking: the caller must hold sta->mesh->plink_lock
+ */
+static u32 __mesh_plink_deactivate(struct sta_info *sta)
+{
+	struct ieee80211_sub_if_data *sdata = sta->sdata;
+	u32 changed = 0;
+
+	lockdep_assert_held(&sta->mesh->plink_lock);
+
+	if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
+		changed = mesh_plink_dec_estab_count(sdata);
+	sta->mesh->plink_state = NL80211_PLINK_BLOCKED;
+	mesh_path_flush_by_nexthop(sta);
+
+	ieee80211_mps_sta_status_update(sta);
+	changed |= ieee80211_mps_set_sta_local_pm(sta,
+			NL80211_MESH_POWER_UNKNOWN);
+
+	return changed;
+}
+
+/**
+ * mesh_plink_deactivate - deactivate mesh peer link
+ *
+ * @sta: mesh peer link to deactivate
+ *
+ * All mesh paths with this peer as next hop will be flushed
+ */
+u32 mesh_plink_deactivate(struct sta_info *sta)
+{
+	struct ieee80211_sub_if_data *sdata = sta->sdata;
+	u32 changed;
+
+	spin_lock_bh(&sta->mesh->plink_lock);
+	changed = __mesh_plink_deactivate(sta);
+	sta->mesh->reason = WLAN_REASON_MESH_PEER_CANCELED;
+	mesh_plink_frame_tx(sdata, sta, WLAN_SP_MESH_PEERING_CLOSE,
+			    sta->sta.addr, sta->mesh->llid, sta->mesh->plid,
+			    sta->mesh->reason);
+	spin_unlock_bh(&sta->mesh->plink_lock);
+
+	return changed;
+}
+
 static void mesh_sta_info_init(struct ieee80211_sub_if_data *sdata,
 			       struct sta_info *sta,
 			       struct ieee802_11_elems *elems, bool insert)
@@ -388,13 +385,14 @@ static void mesh_sta_info_init(struct ieee80211_sub_if_data *sdata,
 	sband = local->hw.wiphy->bands[band];
 	rates = ieee80211_sta_get_rates(sdata, elems, band, &basic_rates);
 
-	spin_lock_bh(&sta->plink_lock);
+	spin_lock_bh(&sta->mesh->plink_lock);
 	sta->last_rx = jiffies;
 
 	/* rates and capabilities don't change during peering */
-	if (sta->plink_state == NL80211_PLINK_ESTAB && sta->processed_beacon)
+	if (sta->mesh->plink_state == NL80211_PLINK_ESTAB &&
+	    sta->mesh->processed_beacon)
 		goto out;
-	sta->processed_beacon = true;
+	sta->mesh->processed_beacon = true;
 
 	if (sta->sta.supp_rates[band] != rates)
 		changed |= IEEE80211_RC_SUPP_RATES_CHANGED;
@@ -421,23 +419,57 @@ static void mesh_sta_info_init(struct ieee80211_sub_if_data *sdata,
 	else
 		rate_control_rate_update(local, sband, sta, changed);
 out:
-	spin_unlock_bh(&sta->plink_lock);
+	spin_unlock_bh(&sta->mesh->plink_lock);
+}
+
+static int mesh_allocate_aid(struct ieee80211_sub_if_data *sdata)
+{
+	struct sta_info *sta;
+	unsigned long *aid_map;
+	int aid;
+
+	aid_map = kcalloc(BITS_TO_LONGS(IEEE80211_MAX_AID + 1),
+			  sizeof(*aid_map), GFP_KERNEL);
+	if (!aid_map)
+		return -ENOMEM;
+
+	/* reserve aid 0 for mcast indication */
+	__set_bit(0, aid_map);
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(sta, &sdata->local->sta_list, list)
+		__set_bit(sta->sta.aid, aid_map);
+	rcu_read_unlock();
+
+	aid = find_first_zero_bit(aid_map, IEEE80211_MAX_AID + 1);
+	kfree(aid_map);
+
+	if (aid > IEEE80211_MAX_AID)
+		return -ENOBUFS;
+
+	return aid;
 }
 
 static struct sta_info *
 __mesh_sta_info_alloc(struct ieee80211_sub_if_data *sdata, u8 *hw_addr)
 {
 	struct sta_info *sta;
+	int aid;
 
 	if (sdata->local->num_sta >= MESH_MAX_PLINKS)
 		return NULL;
 
+	aid = mesh_allocate_aid(sdata);
+	if (aid < 0)
+		return NULL;
+
 	sta = sta_info_alloc(sdata, hw_addr, GFP_KERNEL);
 	if (!sta)
 		return NULL;
 
-	sta->plink_state = NL80211_PLINK_LISTEN;
+	sta->mesh->plink_state = NL80211_PLINK_LISTEN;
 	sta->sta.wme = true;
+	sta->sta.aid = aid;
 
 	sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
 	sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
@@ -524,7 +556,7 @@ void mesh_neighbour_update(struct ieee80211_sub_if_data *sdata,
 		goto out;
 
 	if (mesh_peer_accepts_plinks(elems) &&
-	    sta->plink_state == NL80211_PLINK_LISTEN &&
+	    sta->mesh->plink_state == NL80211_PLINK_LISTEN &&
 	    sdata->u.mesh.accepting_plinks &&
 	    sdata->u.mesh.mshcfg.auto_open_plinks &&
 	    rssi_threshold_check(sdata, sta))
@@ -554,52 +586,52 @@ static void mesh_plink_timer(unsigned long data)
 	if (sta->sdata->local->quiescing)
 		return;
 
-	spin_lock_bh(&sta->plink_lock);
+	spin_lock_bh(&sta->mesh->plink_lock);
 
 	/* If a timer fires just before a state transition on another CPU,
 	 * we may have already extended the timeout and changed state by the
 	 * time we've acquired the lock and arrived  here.  In that case,
 	 * skip this timer and wait for the new one.
 	 */
-	if (time_before(jiffies, sta->plink_timer.expires)) {
+	if (time_before(jiffies, sta->mesh->plink_timer.expires)) {
 		mpl_dbg(sta->sdata,
 			"Ignoring timer for %pM in state %s (timer adjusted)",
-			sta->sta.addr, mplstates[sta->plink_state]);
+			sta->sta.addr, mplstates[sta->mesh->plink_state]);
-		spin_unlock_bh(&sta->plink_lock);
+		spin_unlock_bh(&sta->mesh->plink_lock);
 		return;
 	}
 
 	/* del_timer() and handler may race when entering these states */
-	if (sta->plink_state == NL80211_PLINK_LISTEN ||
+	if (sta->mesh->plink_state == NL80211_PLINK_LISTEN ||
-	    sta->plink_state == NL80211_PLINK_ESTAB) {
+	    sta->mesh->plink_state == NL80211_PLINK_ESTAB) {
 		mpl_dbg(sta->sdata,
 			"Ignoring timer for %pM in state %s (timer deleted)",
-			sta->sta.addr, mplstates[sta->plink_state]);
+			sta->sta.addr, mplstates[sta->mesh->plink_state]);
-		spin_unlock_bh(&sta->plink_lock);
+		spin_unlock_bh(&sta->mesh->plink_lock);
 		return;
 	}
 
 	mpl_dbg(sta->sdata,
 		"Mesh plink timer for %pM fired on state %s\n",
-		sta->sta.addr, mplstates[sta->plink_state]);
+		sta->sta.addr, mplstates[sta->mesh->plink_state]);
 	sdata = sta->sdata;
 	mshcfg = &sdata->u.mesh.mshcfg;
 
-	switch (sta->plink_state) {
+	switch (sta->mesh->plink_state) {
 	case NL80211_PLINK_OPN_RCVD:
 	case NL80211_PLINK_OPN_SNT:
 		/* retry timer */
-		if (sta->plink_retries < mshcfg->dot11MeshMaxRetries) {
+		if (sta->mesh->plink_retries < mshcfg->dot11MeshMaxRetries) {
 			u32 rand;
 			mpl_dbg(sta->sdata,
 				"Mesh plink for %pM (retry, timeout): %d %d\n",
-				sta->sta.addr, sta->plink_retries,
+				sta->sta.addr, sta->mesh->plink_retries,
-				sta->plink_timeout);
+				sta->mesh->plink_timeout);
 			get_random_bytes(&rand, sizeof(u32));
-			sta->plink_timeout = sta->plink_timeout +
+			sta->mesh->plink_timeout = sta->mesh->plink_timeout +
-					     rand % sta->plink_timeout;
+					     rand % sta->mesh->plink_timeout;
-			++sta->plink_retries;
+			++sta->mesh->plink_retries;
-			mod_plink_timer(sta, sta->plink_timeout);
+			mod_plink_timer(sta, sta->mesh->plink_timeout);
 			action = WLAN_SP_MESH_PEERING_OPEN;
 			break;
 		}
@@ -609,31 +641,31 @@ static void mesh_plink_timer(unsigned long data)
 		/* confirm timer */
 		if (!reason)
 			reason = WLAN_REASON_MESH_CONFIRM_TIMEOUT;
-		sta->plink_state = NL80211_PLINK_HOLDING;
+		sta->mesh->plink_state = NL80211_PLINK_HOLDING;
 		mod_plink_timer(sta, mshcfg->dot11MeshHoldingTimeout);
 		action = WLAN_SP_MESH_PEERING_CLOSE;
 		break;
 	case NL80211_PLINK_HOLDING:
 		/* holding timer */
-		del_timer(&sta->plink_timer);
+		del_timer(&sta->mesh->plink_timer);
 		mesh_plink_fsm_restart(sta);
 		break;
 	default:
 		break;
 	}
-	spin_unlock_bh(&sta->plink_lock);
+	spin_unlock_bh(&sta->mesh->plink_lock);
 	if (action)
-		mesh_plink_frame_tx(sdata, action, sta->sta.addr,
+		mesh_plink_frame_tx(sdata, sta, action, sta->sta.addr,
-				    sta->llid, sta->plid, reason);
+				    sta->mesh->llid, sta->mesh->plid, reason);
 }
 
 static inline void mesh_plink_timer_set(struct sta_info *sta, u32 timeout)
 {
-	sta->plink_timer.expires = jiffies + msecs_to_jiffies(timeout);
+	sta->mesh->plink_timer.expires = jiffies + msecs_to_jiffies(timeout);
-	sta->plink_timer.data = (unsigned long) sta;
+	sta->mesh->plink_timer.data = (unsigned long) sta;
-	sta->plink_timer.function = mesh_plink_timer;
+	sta->mesh->plink_timer.function = mesh_plink_timer;
-	sta->plink_timeout = timeout;
+	sta->mesh->plink_timeout = timeout;
-	add_timer(&sta->plink_timer);
+	add_timer(&sta->mesh->plink_timer);
 }
 
 static bool llid_in_use(struct ieee80211_sub_if_data *sdata,
@@ -645,7 +677,7 @@ static bool llid_in_use(struct ieee80211_sub_if_data *sdata,
 
 	rcu_read_lock();
 	list_for_each_entry_rcu(sta, &local->sta_list, list) {
-		if (!memcmp(&sta->llid, &llid, sizeof(llid))) {
+		if (!memcmp(&sta->mesh->llid, &llid, sizeof(llid))) {
 			in_use = true;
 			break;
 		}
@@ -661,8 +693,6 @@ static u16 mesh_get_new_llid(struct ieee80211_sub_if_data *sdata)
 
 	do {
 		get_random_bytes(&llid, sizeof(llid));
-		/* for mesh PS we still only have the AID range for TIM bits */
-		llid = (llid % IEEE80211_MAX_AID) + 1;
 	} while (llid_in_use(sdata, llid));
 
 	return llid;
@@ -676,16 +706,16 @@ u32 mesh_plink_open(struct sta_info *sta)
 	if (!test_sta_flag(sta, WLAN_STA_AUTH))
 		return 0;
 
-	spin_lock_bh(&sta->plink_lock);
+	spin_lock_bh(&sta->mesh->plink_lock);
-	sta->llid = mesh_get_new_llid(sdata);
+	sta->mesh->llid = mesh_get_new_llid(sdata);
-	if (sta->plink_state != NL80211_PLINK_LISTEN &&
+	if (sta->mesh->plink_state != NL80211_PLINK_LISTEN &&
-	    sta->plink_state != NL80211_PLINK_BLOCKED) {
+	    sta->mesh->plink_state != NL80211_PLINK_BLOCKED) {
-		spin_unlock_bh(&sta->plink_lock);
+		spin_unlock_bh(&sta->mesh->plink_lock);
 		return 0;
 	}
-	sta->plink_state = NL80211_PLINK_OPN_SNT;
+	sta->mesh->plink_state = NL80211_PLINK_OPN_SNT;
 	mesh_plink_timer_set(sta, sdata->u.mesh.mshcfg.dot11MeshRetryTimeout);
-	spin_unlock_bh(&sta->plink_lock);
+	spin_unlock_bh(&sta->mesh->plink_lock);
 	mpl_dbg(sdata,
 		"Mesh plink: starting establishment with %pM\n",
 		sta->sta.addr);
@@ -693,8 +723,8 @@ u32 mesh_plink_open(struct sta_info *sta)
 	/* set the non-peer mode to active during peering */
 	changed = ieee80211_mps_local_status_update(sdata);
 
-	mesh_plink_frame_tx(sdata, WLAN_SP_MESH_PEERING_OPEN,
+	mesh_plink_frame_tx(sdata, sta, WLAN_SP_MESH_PEERING_OPEN,
-			    sta->sta.addr, sta->llid, 0, 0);
+			    sta->sta.addr, sta->mesh->llid, 0, 0);
 	return changed;
 }
 
@@ -702,10 +732,10 @@ u32 mesh_plink_block(struct sta_info *sta)
 {
 	u32 changed;
 
-	spin_lock_bh(&sta->plink_lock);
+	spin_lock_bh(&sta->mesh->plink_lock);
 	changed = __mesh_plink_deactivate(sta);
-	sta->plink_state = NL80211_PLINK_BLOCKED;
+	sta->mesh->plink_state = NL80211_PLINK_BLOCKED;
-	spin_unlock_bh(&sta->plink_lock);
+	spin_unlock_bh(&sta->mesh->plink_lock);
 
 	return changed;
 }
@@ -715,12 +745,11 @@ static void mesh_plink_close(struct ieee80211_sub_if_data *sdata,
 			     enum plink_event event)
 {
 	struct mesh_config *mshcfg = &sdata->u.mesh.mshcfg;
-
 	u16 reason = (event == CLS_ACPT) ?
 		     WLAN_REASON_MESH_CLOSE : WLAN_REASON_MESH_CONFIG;
 
-	sta->reason = reason;
+	sta->mesh->reason = reason;
-	sta->plink_state = NL80211_PLINK_HOLDING;
+	sta->mesh->plink_state = NL80211_PLINK_HOLDING;
 	mod_plink_timer(sta, mshcfg->dot11MeshHoldingTimeout);
 }
 
@@ -730,8 +759,8 @@ static u32 mesh_plink_establish(struct ieee80211_sub_if_data *sdata,
 	struct mesh_config *mshcfg = &sdata->u.mesh.mshcfg;
 	u32 changed = 0;
 
-	del_timer(&sta->plink_timer);
+	del_timer(&sta->mesh->plink_timer);
-	sta->plink_state = NL80211_PLINK_ESTAB;
+	sta->mesh->plink_state = NL80211_PLINK_ESTAB;
 	changed |= mesh_plink_inc_estab_count(sdata);
 	changed |= mesh_set_ht_prot_mode(sdata);
 	changed |= mesh_set_short_slot_time(sdata);
@@ -758,18 +787,18 @@ static u32 mesh_plink_fsm(struct ieee80211_sub_if_data *sdata,
 	u32 changed = 0;
 
 	mpl_dbg(sdata, "peer %pM in state %s got event %s\n", sta->sta.addr,
-		mplstates[sta->plink_state], mplevents[event]);
+		mplstates[sta->mesh->plink_state], mplevents[event]);
 
-	spin_lock_bh(&sta->plink_lock);
+	spin_lock_bh(&sta->mesh->plink_lock);
-	switch (sta->plink_state) {
+	switch (sta->mesh->plink_state) {
 	case NL80211_PLINK_LISTEN:
 		switch (event) {
 		case CLS_ACPT:
 			mesh_plink_fsm_restart(sta);
 			break;
 		case OPN_ACPT:
-			sta->plink_state = NL80211_PLINK_OPN_RCVD;
+			sta->mesh->plink_state = NL80211_PLINK_OPN_RCVD;
-			sta->llid = mesh_get_new_llid(sdata);
+			sta->mesh->llid = mesh_get_new_llid(sdata);
 			mesh_plink_timer_set(sta,
 					     mshcfg->dot11MeshRetryTimeout);
 
@@ -791,11 +820,11 @@ static u32 mesh_plink_fsm(struct ieee80211_sub_if_data *sdata,
 			break;
 		case OPN_ACPT:
 			/* retry timer is left untouched */
-			sta->plink_state = NL80211_PLINK_OPN_RCVD;
+			sta->mesh->plink_state = NL80211_PLINK_OPN_RCVD;
 			action = WLAN_SP_MESH_PEERING_CONFIRM;
 			break;
 		case CNF_ACPT:
-			sta->plink_state = NL80211_PLINK_CNF_RCVD;
+			sta->mesh->plink_state = NL80211_PLINK_CNF_RCVD;
 			mod_plink_timer(sta, mshcfg->dot11MeshConfirmTimeout);
 			break;
 		default:
@@ -855,7 +884,7 @@ static u32 mesh_plink_fsm(struct ieee80211_sub_if_data *sdata,
 	case NL80211_PLINK_HOLDING:
 		switch (event) {
 		case CLS_ACPT:
-			del_timer(&sta->plink_timer);
+			del_timer(&sta->mesh->plink_timer);
 			mesh_plink_fsm_restart(sta);
 			break;
 		case OPN_ACPT:
@@ -874,17 +903,18 @@ static u32 mesh_plink_fsm(struct ieee80211_sub_if_data *sdata,
 		 */
 		break;
 	}
-	spin_unlock_bh(&sta->plink_lock);
+	spin_unlock_bh(&sta->mesh->plink_lock);
 	if (action) {
-		mesh_plink_frame_tx(sdata, action, sta->sta.addr,
+		mesh_plink_frame_tx(sdata, sta, action, sta->sta.addr,
-				    sta->llid, sta->plid, sta->reason);
+				    sta->mesh->llid, sta->mesh->plid,
+				    sta->mesh->reason);
 
 		/* also send confirm in open case */
 		if (action == WLAN_SP_MESH_PEERING_OPEN) {
-			mesh_plink_frame_tx(sdata,
+			mesh_plink_frame_tx(sdata, sta,
 					    WLAN_SP_MESH_PEERING_CONFIRM,
-					    sta->sta.addr, sta->llid,
+					    sta->sta.addr, sta->mesh->llid,
-					    sta->plid, 0);
+					    sta->mesh->plid, 0);
 		}
 	}
 
@@ -939,7 +969,7 @@ mesh_plink_get_event(struct ieee80211_sub_if_data *sdata,
 			mpl_dbg(sdata, "Mesh plink: Action frame from non-authed peer\n");
 			goto out;
 		}
-		if (sta->plink_state == NL80211_PLINK_BLOCKED)
+		if (sta->mesh->plink_state == NL80211_PLINK_BLOCKED)
 			goto out;
 	}
 
@@ -954,7 +984,7 @@ mesh_plink_get_event(struct ieee80211_sub_if_data *sdata,
 		if (!matches_local)
 			event = OPN_RJCT;
 		if (!mesh_plink_free_count(sdata) ||
-		    (sta->plid && sta->plid != plid))
+		    (sta->mesh->plid && sta->mesh->plid != plid))
 			event = OPN_IGNR;
 		else
 			event = OPN_ACPT;
@@ -963,14 +993,14 @@ mesh_plink_get_event(struct ieee80211_sub_if_data *sdata,
 		if (!matches_local)
 			event = CNF_RJCT;
 		if (!mesh_plink_free_count(sdata) ||
-		    sta->llid != llid ||
+		    sta->mesh->llid != llid ||
-		    (sta->plid && sta->plid != plid))
+		    (sta->mesh->plid && sta->mesh->plid != plid))
 			event = CNF_IGNR;
 		else
 			event = CNF_ACPT;
 		break;
 	case WLAN_SP_MESH_PEERING_CLOSE:
-		if (sta->plink_state == NL80211_PLINK_ESTAB)
+		if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
 			/* Do not check for llid or plid. This does not
 			 * follow the standard but since multiple plinks
 			 * per sta are not supported, it is necessary in
@@ -981,9 +1011,9 @@ mesh_plink_get_event(struct ieee80211_sub_if_data *sdata,
 			 * restarted.
 			 */
 			event = CLS_ACPT;
-		else if (sta->plid != plid)
+		else if (sta->mesh->plid != plid)
 			event = CLS_IGNR;
-		else if (ie_len == 8 && sta->llid != llid)
+		else if (ie_len == 8 && sta->mesh->llid != llid)
 			event = CLS_IGNR;
 		else
 			event = CLS_ACPT;
@@ -1070,9 +1100,9 @@ mesh_process_plink_frame(struct ieee80211_sub_if_data *sdata,
 			mpl_dbg(sdata, "Mesh plink: failed to init peer!\n");
 			goto unlock_rcu;
 		}
-		sta->plid = plid;
+		sta->mesh->plid = plid;
 	} else if (!sta && event == OPN_RJCT) {
-		mesh_plink_frame_tx(sdata, WLAN_SP_MESH_PEERING_CLOSE,
+		mesh_plink_frame_tx(sdata, NULL, WLAN_SP_MESH_PEERING_CLOSE,
 				    mgmt->sa, 0, plid,
 				    WLAN_REASON_MESH_CONFIG);
 		goto unlock_rcu;
@@ -1081,9 +1111,13 @@ mesh_process_plink_frame(struct ieee80211_sub_if_data *sdata,
 		goto unlock_rcu;
 	}
 
-	/* 802.11-2012 13.3.7.2 - update plid on CNF if not set */
+	if (event == CNF_ACPT) {
-	if (!sta->plid && event == CNF_ACPT)
+		/* 802.11-2012 13.3.7.2 - update plid on CNF if not set */
-		sta->plid = plid;
+		if (!sta->mesh->plid)
+			sta->mesh->plid = plid;
+
+		sta->mesh->aid = get_unaligned_le16(PLINK_CNF_AID(mgmt));
+	}
 
 	changed |= mesh_plink_fsm(sdata, sta, event);
 

net/mac80211/mesh_ps.c

@@ -92,16 +92,16 @@ u32 ieee80211_mps_local_status_update(struct ieee80211_sub_if_data *sdata)
 		if (sdata != sta->sdata)
 			continue;
 
-		switch (sta->plink_state) {
+		switch (sta->mesh->plink_state) {
 		case NL80211_PLINK_OPN_SNT:
 		case NL80211_PLINK_OPN_RCVD:
 		case NL80211_PLINK_CNF_RCVD:
 			peering = true;
 			break;
 		case NL80211_PLINK_ESTAB:
-			if (sta->local_pm == NL80211_MESH_POWER_LIGHT_SLEEP)
+			if (sta->mesh->local_pm == NL80211_MESH_POWER_LIGHT_SLEEP)
 				light_sleep_cnt++;
-			else if (sta->local_pm == NL80211_MESH_POWER_DEEP_SLEEP)
+			else if (sta->mesh->local_pm == NL80211_MESH_POWER_DEEP_SLEEP)
 				deep_sleep_cnt++;
 			break;
 		default:
@@ -153,19 +153,19 @@ u32 ieee80211_mps_set_sta_local_pm(struct sta_info *sta,
 {
 	struct ieee80211_sub_if_data *sdata = sta->sdata;
 
-	if (sta->local_pm == pm)
+	if (sta->mesh->local_pm == pm)
 		return 0;
 
 	mps_dbg(sdata, "local STA operates in mode %d with %pM\n",
 		pm, sta->sta.addr);
 
-	sta->local_pm = pm;
+	sta->mesh->local_pm = pm;
 
 	/*
 	 * announce peer-specific power mode transition
 	 * (see IEEE802.11-2012 13.14.3.2 and 13.14.3.3)
 	 */
-	if (sta->plink_state == NL80211_PLINK_ESTAB)
+	if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
 		mps_qos_null_tx(sta);
 
 	return ieee80211_mps_local_status_update(sdata);
@@ -197,8 +197,8 @@ void ieee80211_mps_set_frame_flags(struct ieee80211_sub_if_data *sdata,
 
 	if (is_unicast_ether_addr(hdr->addr1) &&
 	    ieee80211_is_data_qos(hdr->frame_control) &&
-	    sta->plink_state == NL80211_PLINK_ESTAB)
+	    sta->mesh->plink_state == NL80211_PLINK_ESTAB)
-		pm = sta->local_pm;
+		pm = sta->mesh->local_pm;
 	else
 		pm = sdata->u.mesh.nonpeer_pm;
 
@@ -241,16 +241,16 @@ void ieee80211_mps_sta_status_update(struct sta_info *sta)
 	 * use peer-specific power mode if peering is established and the
 	 * peer's power mode is known
 	 */
-	if (sta->plink_state == NL80211_PLINK_ESTAB &&
+	if (sta->mesh->plink_state == NL80211_PLINK_ESTAB &&
-	    sta->peer_pm != NL80211_MESH_POWER_UNKNOWN)
+	    sta->mesh->peer_pm != NL80211_MESH_POWER_UNKNOWN)
-		pm = sta->peer_pm;
+		pm = sta->mesh->peer_pm;
 	else
-		pm = sta->nonpeer_pm;
+		pm = sta->mesh->nonpeer_pm;
 
 	do_buffer = (pm != NL80211_MESH_POWER_ACTIVE);
 
 	/* clear the MPSP flags for non-peers or active STA */
-	if (sta->plink_state != NL80211_PLINK_ESTAB) {
+	if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) {
 		clear_sta_flag(sta, WLAN_STA_MPSP_OWNER);
 		clear_sta_flag(sta, WLAN_STA_MPSP_RECIPIENT);
 	} else if (!do_buffer) {
@@ -296,13 +296,13 @@ static void mps_set_sta_peer_pm(struct sta_info *sta,
 		pm = NL80211_MESH_POWER_ACTIVE;
 	}
 
-	if (sta->peer_pm == pm)
+	if (sta->mesh->peer_pm == pm)
 		return;
 
 	mps_dbg(sta->sdata, "STA %pM enters mode %d\n",
 		sta->sta.addr, pm);
 
-	sta->peer_pm = pm;
+	sta->mesh->peer_pm = pm;
 
 	ieee80211_mps_sta_status_update(sta);
 }
@@ -317,13 +317,13 @@ static void mps_set_sta_nonpeer_pm(struct sta_info *sta,
 	else
 		pm = NL80211_MESH_POWER_ACTIVE;
 
-	if (sta->nonpeer_pm == pm)
+	if (sta->mesh->nonpeer_pm == pm)
 		return;
 
 	mps_dbg(sta->sdata, "STA %pM sets non-peer mode to %d\n",
 		sta->sta.addr, pm);
 
-	sta->nonpeer_pm = pm;
+	sta->mesh->nonpeer_pm = pm;
 
 	ieee80211_mps_sta_status_update(sta);
 }
@@ -552,7 +552,7 @@ void ieee80211_mpsp_trigger_process(u8 *qc, struct sta_info *sta,
 	} else {
 		if (eosp)
 			clear_sta_flag(sta, WLAN_STA_MPSP_RECIPIENT);
-		else if (sta->local_pm != NL80211_MESH_POWER_ACTIVE)
+		else if (sta->mesh->local_pm != NL80211_MESH_POWER_ACTIVE)
 			set_sta_flag(sta, WLAN_STA_MPSP_RECIPIENT);
 
 		if (rspi && !test_and_set_sta_flag(sta, WLAN_STA_MPSP_OWNER))
@@ -577,9 +577,9 @@ void ieee80211_mps_frame_release(struct sta_info *sta,
 	int ac, buffer_local = 0;
 	bool has_buffered = false;
 
-	if (sta->plink_state == NL80211_PLINK_ESTAB)
+	if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
 		has_buffered = ieee80211_check_tim(elems->tim, elems->tim_len,
-						   sta->llid);
+						   sta->mesh->aid);
 
 	if (has_buffered)
 		mps_dbg(sta->sdata, "%pM indicates buffered frames\n",
@@ -598,7 +598,7 @@ void ieee80211_mps_frame_release(struct sta_info *sta,
 	if (!has_buffered && !buffer_local)
 		return;
 
-	if (sta->plink_state == NL80211_PLINK_ESTAB)
+	if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
 		mpsp_trigger_send(sta, has_buffered, !buffer_local);
 	else
 		mps_frame_deliver(sta, 1);

net/mac80211/mesh_sync.c

@@ -127,14 +127,14 @@ static void mesh_sync_offset_rx_bcn_presp(struct ieee80211_sub_if_data *sdata,
 
 	/* Timing offset calculation (see 13.13.2.2.2) */
 	t_t = le64_to_cpu(mgmt->u.beacon.timestamp);
-	sta->t_offset = t_t - t_r;
+	sta->mesh->t_offset = t_t - t_r;
 
 	if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) {
-		s64 t_clockdrift = sta->t_offset_setpoint - sta->t_offset;
+		s64 t_clockdrift = sta->mesh->t_offset_setpoint - sta->mesh->t_offset;
 		msync_dbg(sdata,
-			  "STA %pM : sta->t_offset=%lld, sta->t_offset_setpoint=%lld, t_clockdrift=%lld\n",
+			  "STA %pM : t_offset=%lld, t_offset_setpoint=%lld, t_clockdrift=%lld\n",
-			  sta->sta.addr, (long long) sta->t_offset,
+			  sta->sta.addr, (long long) sta->mesh->t_offset,
-			  (long long) sta->t_offset_setpoint,
+			  (long long) sta->mesh->t_offset_setpoint,
 			  (long long) t_clockdrift);
 
 		if (t_clockdrift > TOFFSET_MAXIMUM_ADJUSTMENT ||
@@ -152,12 +152,12 @@ static void mesh_sync_offset_rx_bcn_presp(struct ieee80211_sub_if_data *sdata,
 			ifmsh->sync_offset_clockdrift_max = t_clockdrift;
 		spin_unlock_bh(&ifmsh->sync_offset_lock);
 	} else {
-		sta->t_offset_setpoint = sta->t_offset - TOFFSET_SET_MARGIN;
+		sta->mesh->t_offset_setpoint = sta->mesh->t_offset - TOFFSET_SET_MARGIN;
 		set_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN);
 		msync_dbg(sdata,
-			  "STA %pM : offset was invalid, sta->t_offset=%lld\n",
+			  "STA %pM : offset was invalid, t_offset=%lld\n",
 			  sta->sta.addr,
-			  (long long) sta->t_offset);
+			  (long long) sta->mesh->t_offset);
 	}
 
 no_sync:

net/mac80211/mlme.c

@@ -6,6 +6,7 @@
  * Copyright 2006-2007	Jiri Benc <jbenc@suse.cz>
  * Copyright 2007, Michael Wu <flamingice@sourmilk.net>
  * Copyright 2013-2014  Intel Mobile Communications GmbH
+ * Copyright (C) 2015 Intel Deutschland GmbH
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -538,11 +539,16 @@ static void ieee80211_add_ht_ie(struct ieee80211_sub_if_data *sdata,
 	ieee80211_ie_build_ht_cap(pos, &ht_cap, cap);
 }
 
+/* This function determines vht capability flags for the association
+ * and builds the IE.
+ * Note - the function may set the owner of the MU-MIMO capability
+ */
 static void ieee80211_add_vht_ie(struct ieee80211_sub_if_data *sdata,
 				 struct sk_buff *skb,
 				 struct ieee80211_supported_band *sband,
 				 struct ieee80211_vht_cap *ap_vht_cap)
 {
+	struct ieee80211_local *local = sdata->local;
 	u8 *pos;
 	u32 cap;
 	struct ieee80211_sta_vht_cap vht_cap;
@@ -576,7 +582,34 @@ static void ieee80211_add_vht_ie(struct ieee80211_sub_if_data *sdata,
 	 */
 	if (!(ap_vht_cap->vht_cap_info &
 			cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE)))
-		cap &= ~IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE;
+		cap &= ~(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
+			 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE);
+	else if (!(ap_vht_cap->vht_cap_info &
+			cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)))
+		cap &= ~IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE;
+
+	/*
+	 * If some other vif is using the MU-MIMO capablity we cannot associate
+	 * using MU-MIMO - this will lead to contradictions in the group-id
+	 * mechanism.
+	 * Ownership is defined since association request, in order to avoid
+	 * simultaneous associations with MU-MIMO.
+	 */
+	if (cap & IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE) {
+		bool disable_mu_mimo = false;
+		struct ieee80211_sub_if_data *other;
+
+		list_for_each_entry_rcu(other, &local->interfaces, list) {
+			if (other->flags & IEEE80211_SDATA_MU_MIMO_OWNER) {
+				disable_mu_mimo = true;
+				break;
+			}
+		}
+		if (disable_mu_mimo)
+			cap &= ~IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE;
+		else
+			sdata->flags |= IEEE80211_SDATA_MU_MIMO_OWNER;
+	}
 
 	mask = IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK;
 
@@ -1096,24 +1129,6 @@ static void ieee80211_chswitch_timer(unsigned long data)
 	ieee80211_queue_work(&sdata->local->hw, &sdata->u.mgd.chswitch_work);
 }
 
-static void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata)
-{
-	struct sta_info *sta;
-	u16 reason = WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED;
-
-	rcu_read_lock();
-	list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
-		if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
-		    !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
-			continue;
-
-		ieee80211_tdls_oper_request(&sdata->vif, sta->sta.addr,
-					    NL80211_TDLS_TEARDOWN, reason,
-					    GFP_ATOMIC);
-	}
-	rcu_read_unlock();
-}
-
 static void
 ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 				 u64 timestamp, u32 device_timestamp,
@@ -2076,6 +2091,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 	memset(&ifmgd->ht_capa_mask, 0, sizeof(ifmgd->ht_capa_mask));
 	memset(&ifmgd->vht_capa, 0, sizeof(ifmgd->vht_capa));
 	memset(&ifmgd->vht_capa_mask, 0, sizeof(ifmgd->vht_capa_mask));
+	sdata->flags &= ~IEEE80211_SDATA_MU_MIMO_OWNER;
 
 	sdata->ap_power_level = IEEE80211_UNSET_POWER_LEVEL;
 
@@ -2538,6 +2554,7 @@ static void ieee80211_destroy_assoc_data(struct ieee80211_sub_if_data *sdata,
 		eth_zero_addr(sdata->u.mgd.bssid);
 		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BSSID);
 		sdata->u.mgd.flags = 0;
+		sdata->flags &= ~IEEE80211_SDATA_MU_MIMO_OWNER;
 		mutex_lock(&sdata->local->mtx);
 		ieee80211_vif_release_channel(sdata);
 		mutex_unlock(&sdata->local->mtx);
@@ -3034,12 +3051,8 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
 
 	rate_control_rate_init(sta);
 
-	if (ifmgd->flags & IEEE80211_STA_MFP_ENABLED) {
+	if (ifmgd->flags & IEEE80211_STA_MFP_ENABLED)
 		set_sta_flag(sta, WLAN_STA_MFP);
-		sta->sta.mfp = true;
-	} else {
-		sta->sta.mfp = false;
-	}
 
 	sta->sta.wme = elems.wmm_param && local->hw.queues >= IEEE80211_NUM_ACS;
 

net/mac80211/ocb.c

@@ -179,7 +179,7 @@ int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
 {
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_if_ocb *ifocb = &sdata->u.ocb;
-	u32 changed = BSS_CHANGED_OCB;
+	u32 changed = BSS_CHANGED_OCB | BSS_CHANGED_BSSID;
 	int err;
 
 	if (ifocb->joined == true)

net/mac80211/rate.c

@@ -29,6 +29,65 @@ module_param(ieee80211_default_rc_algo, charp, 0644);
 MODULE_PARM_DESC(ieee80211_default_rc_algo,
 		 "Default rate control algorithm for mac80211 to use");
 
+void rate_control_rate_init(struct sta_info *sta)
+{
+	struct ieee80211_local *local = sta->sdata->local;
+	struct rate_control_ref *ref = sta->rate_ctrl;
+	struct ieee80211_sta *ista = &sta->sta;
+	void *priv_sta = sta->rate_ctrl_priv;
+	struct ieee80211_supported_band *sband;
+	struct ieee80211_chanctx_conf *chanctx_conf;
+
+	ieee80211_sta_set_rx_nss(sta);
+
+	if (!ref)
+		return;
+
+	rcu_read_lock();
+
+	chanctx_conf = rcu_dereference(sta->sdata->vif.chanctx_conf);
+	if (WARN_ON(!chanctx_conf)) {
+		rcu_read_unlock();
+		return;
+	}
+
+	sband = local->hw.wiphy->bands[chanctx_conf->def.chan->band];
+
+	spin_lock_bh(&sta->rate_ctrl_lock);
+	ref->ops->rate_init(ref->priv, sband, &chanctx_conf->def, ista,
+			    priv_sta);
+	spin_unlock_bh(&sta->rate_ctrl_lock);
+	rcu_read_unlock();
+	set_sta_flag(sta, WLAN_STA_RATE_CONTROL);
+}
+
+void rate_control_rate_update(struct ieee80211_local *local,
+				    struct ieee80211_supported_band *sband,
+				    struct sta_info *sta, u32 changed)
+{
+	struct rate_control_ref *ref = local->rate_ctrl;
+	struct ieee80211_sta *ista = &sta->sta;
+	void *priv_sta = sta->rate_ctrl_priv;
+	struct ieee80211_chanctx_conf *chanctx_conf;
+
+	if (ref && ref->ops->rate_update) {
+		rcu_read_lock();
+
+		chanctx_conf = rcu_dereference(sta->sdata->vif.chanctx_conf);
+		if (WARN_ON(!chanctx_conf)) {
+			rcu_read_unlock();
+			return;
+		}
+
+		spin_lock_bh(&sta->rate_ctrl_lock);
+		ref->ops->rate_update(ref->priv, sband, &chanctx_conf->def,
+				      ista, priv_sta, changed);
+		spin_unlock_bh(&sta->rate_ctrl_lock);
+		rcu_read_unlock();
+	}
+	drv_sta_rc_update(local, sta->sdata, &sta->sta, changed);
+}
+
 int ieee80211_rate_control_register(const struct rate_control_ops *ops)
 {
 	struct rate_control_alg *alg;
@@ -294,39 +353,37 @@ bool rate_control_send_low(struct ieee80211_sta *pubsta,
 }
 EXPORT_SYMBOL(rate_control_send_low);
 
-static bool rate_idx_match_legacy_mask(struct ieee80211_tx_rate *rate,
+static bool rate_idx_match_legacy_mask(s8 *rate_idx, int n_bitrates, u32 mask)
-				       int n_bitrates, u32 mask)
 {
 	int j;
 
 	/* See whether the selected rate or anything below it is allowed. */
-	for (j = rate->idx; j >= 0; j--) {
+	for (j = *rate_idx; j >= 0; j--) {
 		if (mask & (1 << j)) {
 			/* Okay, found a suitable rate. Use it. */
-			rate->idx = j;
+			*rate_idx = j;
 			return true;
 		}
 	}
 
 	/* Try to find a higher rate that would be allowed */
-	for (j = rate->idx + 1; j < n_bitrates; j++) {
+	for (j = *rate_idx + 1; j < n_bitrates; j++) {
 		if (mask & (1 << j)) {
 			/* Okay, found a suitable rate. Use it. */
-			rate->idx = j;
+			*rate_idx = j;
 			return true;
 		}
 	}
 	return false;
 }
 
-static bool rate_idx_match_mcs_mask(struct ieee80211_tx_rate *rate,
+static bool rate_idx_match_mcs_mask(s8 *rate_idx, u8 *mcs_mask)
-				    u8 mcs_mask[IEEE80211_HT_MCS_MASK_LEN])
 {
 	int i, j;
 	int ridx, rbit;
 
-	ridx = rate->idx / 8;
+	ridx = *rate_idx / 8;
-	rbit = rate->idx % 8;
+	rbit = *rate_idx % 8;
 
 	/* sanity check */
 	if (ridx < 0 || ridx >= IEEE80211_HT_MCS_MASK_LEN)
@@ -336,20 +393,20 @@ static bool rate_idx_match_mcs_mask(struct ieee80211_tx_rate *rate,
 	for (i = ridx; i >= 0; i--) {
 		for (j = rbit; j >= 0; j--)
 			if (mcs_mask[i] & BIT(j)) {
-				rate->idx = i * 8 + j;
+				*rate_idx = i * 8 + j;
 				return true;
 			}
 		rbit = 7;
 	}
 
 	/* Try to find a higher rate that would be allowed */
-	ridx = (rate->idx + 1) / 8;
+	ridx = (*rate_idx + 1) / 8;
-	rbit = (rate->idx + 1) % 8;
+	rbit = (*rate_idx + 1) % 8;
 
 	for (i = ridx; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
 		for (j = rbit; j < 8; j++)
 			if (mcs_mask[i] & BIT(j)) {
-				rate->idx = i * 8 + j;
+				*rate_idx = i * 8 + j;
 				return true;
 			}
 		rbit = 0;
@@ -357,37 +414,93 @@ static bool rate_idx_match_mcs_mask(struct ieee80211_tx_rate *rate,
 	return false;
 }
 
+static bool rate_idx_match_vht_mcs_mask(s8 *rate_idx, u16 *vht_mask)
+{
+	int i, j;
+	int ridx, rbit;
 
+	ridx = *rate_idx >> 4;
+	rbit = *rate_idx & 0xf;
 
-static void rate_idx_match_mask(struct ieee80211_tx_rate *rate,
+	if (ridx < 0 || ridx >= NL80211_VHT_NSS_MAX)
+		return false;
+
+	/* See whether the selected rate or anything below it is allowed. */
+	for (i = ridx; i >= 0; i--) {
+		for (j = rbit; j >= 0; j--) {
+			if (vht_mask[i] & BIT(j)) {
+				*rate_idx = (i << 4) | j;
+				return true;
+			}
+		}
+		rbit = 15;
+	}
+
+	/* Try to find a higher rate that would be allowed */
+	ridx = (*rate_idx + 1) >> 4;
+	rbit = (*rate_idx + 1) & 0xf;
+
+	for (i = ridx; i < NL80211_VHT_NSS_MAX; i++) {
+		for (j = rbit; j < 16; j++) {
+			if (vht_mask[i] & BIT(j)) {
+				*rate_idx = (i << 4) | j;
+				return true;
+			}
+		}
+		rbit = 0;
+	}
+	return false;
+}
+
+static void rate_idx_match_mask(s8 *rate_idx, u16 *rate_flags,
 				struct ieee80211_supported_band *sband,
 				enum nl80211_chan_width chan_width,
 				u32 mask,
-				u8 mcs_mask[IEEE80211_HT_MCS_MASK_LEN])
+				u8 mcs_mask[IEEE80211_HT_MCS_MASK_LEN],
+				u16 vht_mask[NL80211_VHT_NSS_MAX])
 {
-	struct ieee80211_tx_rate alt_rate;
+	if (*rate_flags & IEEE80211_TX_RC_VHT_MCS) {
+		/* handle VHT rates */
+		if (rate_idx_match_vht_mcs_mask(rate_idx, vht_mask))
+			return;
 
-	/* handle HT rates */
+		*rate_idx = 0;
-	if (rate->flags & IEEE80211_TX_RC_MCS) {
+		/* keep protection flags */
-		if (rate_idx_match_mcs_mask(rate, mcs_mask))
+		*rate_flags &= (IEEE80211_TX_RC_USE_RTS_CTS |
+				IEEE80211_TX_RC_USE_CTS_PROTECT |
+				IEEE80211_TX_RC_USE_SHORT_PREAMBLE);
+
+		*rate_flags |= IEEE80211_TX_RC_MCS;
+		if (chan_width == NL80211_CHAN_WIDTH_40)
+			*rate_flags |= IEEE80211_TX_RC_40_MHZ_WIDTH;
+
+		if (rate_idx_match_mcs_mask(rate_idx, mcs_mask))
 			return;
 
 		/* also try the legacy rates. */
-		alt_rate.idx = 0;
+		*rate_flags &= ~(IEEE80211_TX_RC_MCS |
-		/* keep protection flags */
+				 IEEE80211_TX_RC_40_MHZ_WIDTH);
-		alt_rate.flags = rate->flags &
+		if (rate_idx_match_legacy_mask(rate_idx, sband->n_bitrates,
-				 (IEEE80211_TX_RC_USE_RTS_CTS |
+					       mask))
-				  IEEE80211_TX_RC_USE_CTS_PROTECT |
-				  IEEE80211_TX_RC_USE_SHORT_PREAMBLE);
-		alt_rate.count = rate->count;
-		if (rate_idx_match_legacy_mask(&alt_rate,
-					       sband->n_bitrates, mask)) {
-			*rate = alt_rate;
 			return;
-		}
+	} else if (*rate_flags & IEEE80211_TX_RC_MCS) {
-	} else if (!(rate->flags & IEEE80211_TX_RC_VHT_MCS)) {
+		/* handle HT rates */
+		if (rate_idx_match_mcs_mask(rate_idx, mcs_mask))
+			return;
+
+		/* also try the legacy rates. */
+		*rate_idx = 0;
+		/* keep protection flags */
+		*rate_flags &= (IEEE80211_TX_RC_USE_RTS_CTS |
+				IEEE80211_TX_RC_USE_CTS_PROTECT |
+				IEEE80211_TX_RC_USE_SHORT_PREAMBLE);
+		if (rate_idx_match_legacy_mask(rate_idx, sband->n_bitrates,
+					       mask))
+			return;
+	} else {
 		/* handle legacy rates */
-		if (rate_idx_match_legacy_mask(rate, sband->n_bitrates, mask))
+		if (rate_idx_match_legacy_mask(rate_idx, sband->n_bitrates,
+					       mask))
 			return;
 
 		/* if HT BSS, and we handle a data frame, also try HT rates */
@@ -400,23 +513,19 @@ static void rate_idx_match_mask(struct ieee80211_tx_rate *rate,
 			break;
 		}
 
-		alt_rate.idx = 0;
+		*rate_idx = 0;
 		/* keep protection flags */
-		alt_rate.flags = rate->flags &
+		*rate_flags &= (IEEE80211_TX_RC_USE_RTS_CTS |
-				 (IEEE80211_TX_RC_USE_RTS_CTS |
+				IEEE80211_TX_RC_USE_CTS_PROTECT |
-				  IEEE80211_TX_RC_USE_CTS_PROTECT |
+				IEEE80211_TX_RC_USE_SHORT_PREAMBLE);
-				  IEEE80211_TX_RC_USE_SHORT_PREAMBLE);
-		alt_rate.count = rate->count;
 
-		alt_rate.flags |= IEEE80211_TX_RC_MCS;
+		*rate_flags |= IEEE80211_TX_RC_MCS;
 
 		if (chan_width == NL80211_CHAN_WIDTH_40)
-			alt_rate.flags |= IEEE80211_TX_RC_40_MHZ_WIDTH;
+			*rate_flags |= IEEE80211_TX_RC_40_MHZ_WIDTH;
 
-		if (rate_idx_match_mcs_mask(&alt_rate, mcs_mask)) {
+		if (rate_idx_match_mcs_mask(rate_idx, mcs_mask))
-			*rate = alt_rate;
 			return;
-		}
 	}
 
 	/*
@@ -569,18 +678,92 @@ static void rate_control_fill_sta_table(struct ieee80211_sta *sta,
 	}
 }
 
+static bool rate_control_cap_mask(struct ieee80211_sub_if_data *sdata,
+				  struct ieee80211_supported_band *sband,
+				  struct ieee80211_sta *sta, u32 *mask,
+				  u8 mcs_mask[IEEE80211_HT_MCS_MASK_LEN],
+				  u16 vht_mask[NL80211_VHT_NSS_MAX])
+{
+	u32 i, flags;
+
+	*mask = sdata->rc_rateidx_mask[sband->band];
+	flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef);
+	for (i = 0; i < sband->n_bitrates; i++) {
+		if ((flags & sband->bitrates[i].flags) != flags)
+			*mask &= ~BIT(i);
+	}
+
+	if (*mask == (1 << sband->n_bitrates) - 1 &&
+	    !sdata->rc_has_mcs_mask[sband->band] &&
+	    !sdata->rc_has_vht_mcs_mask[sband->band])
+		return false;
+
+	if (sdata->rc_has_mcs_mask[sband->band])
+		memcpy(mcs_mask, sdata->rc_rateidx_mcs_mask[sband->band],
+		       IEEE80211_HT_MCS_MASK_LEN);
+	else
+		memset(mcs_mask, 0xff, IEEE80211_HT_MCS_MASK_LEN);
+
+	if (sdata->rc_has_vht_mcs_mask[sband->band])
+		memcpy(vht_mask, sdata->rc_rateidx_vht_mcs_mask[sband->band],
+		       sizeof(u16) * NL80211_VHT_NSS_MAX);
+	else
+		memset(vht_mask, 0xff, sizeof(u16) * NL80211_VHT_NSS_MAX);
+
+	if (sta) {
+		__le16 sta_vht_cap;
+		u16 sta_vht_mask[NL80211_VHT_NSS_MAX];
+
+		/* Filter out rates that the STA does not support */
+		*mask &= sta->supp_rates[sband->band];
+		for (i = 0; i < sizeof(mcs_mask); i++)
+			mcs_mask[i] &= sta->ht_cap.mcs.rx_mask[i];
+
+		sta_vht_cap = sta->vht_cap.vht_mcs.rx_mcs_map;
+		ieee80211_get_vht_mask_from_cap(sta_vht_cap, sta_vht_mask);
+		for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
+			vht_mask[i] &= sta_vht_mask[i];
+	}
+
+	return true;
+}
+
+static void
+rate_control_apply_mask_ratetbl(struct sta_info *sta,
+				struct ieee80211_supported_band *sband,
+				struct ieee80211_sta_rates *rates)
+{
+	int i;
+	u32 mask;
+	u8 mcs_mask[IEEE80211_HT_MCS_MASK_LEN];
+	u16 vht_mask[NL80211_VHT_NSS_MAX];
+	enum nl80211_chan_width chan_width;
+
+	if (!rate_control_cap_mask(sta->sdata, sband, &sta->sta, &mask,
+				   mcs_mask, vht_mask))
+		return;
+
+	chan_width = sta->sdata->vif.bss_conf.chandef.width;
+	for (i = 0; i < IEEE80211_TX_RATE_TABLE_SIZE; i++) {
+		if (rates->rate[i].idx < 0)
+			break;
+
+		rate_idx_match_mask(&rates->rate[i].idx, &rates->rate[i].flags,
+				    sband, chan_width, mask, mcs_mask,
+				    vht_mask);
+	}
+}
+
 static void rate_control_apply_mask(struct ieee80211_sub_if_data *sdata,
 				    struct ieee80211_sta *sta,
 				    struct ieee80211_supported_band *sband,
-				    struct ieee80211_tx_info *info,
 				    struct ieee80211_tx_rate *rates,
 				    int max_rates)
 {
 	enum nl80211_chan_width chan_width;
 	u8 mcs_mask[IEEE80211_HT_MCS_MASK_LEN];
-	bool has_mcs_mask;
 	u32 mask;
-	u32 rate_flags;
+	u16 rate_flags, vht_mask[NL80211_VHT_NSS_MAX];
 	int i;
 
 	/*
@@ -588,30 +771,10 @@ static void rate_control_apply_mask(struct ieee80211_sub_if_data *sdata,
 	 * default mask (allow all rates) is used to save some processing for
 	 * the common case.
 	 */
-	mask = sdata->rc_rateidx_mask[info->band];
+	if (!rate_control_cap_mask(sdata, sband, sta, &mask, mcs_mask,
-	has_mcs_mask = sdata->rc_has_mcs_mask[info->band];
+				   vht_mask))
-	rate_flags =
-		ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef);
-	for (i = 0; i < sband->n_bitrates; i++)
-		if ((rate_flags & sband->bitrates[i].flags) != rate_flags)
-			mask &= ~BIT(i);
-
-	if (mask == (1 << sband->n_bitrates) - 1 && !has_mcs_mask)
 		return;
 
-	if (has_mcs_mask)
-		memcpy(mcs_mask, sdata->rc_rateidx_mcs_mask[info->band],
-		       sizeof(mcs_mask));
-	else
-		memset(mcs_mask, 0xff, sizeof(mcs_mask));
-
-	if (sta) {
-		/* Filter out rates that the STA does not support */
-		mask &= sta->supp_rates[info->band];
-		for (i = 0; i < sizeof(mcs_mask); i++)
-			mcs_mask[i] &= sta->ht_cap.mcs.rx_mask[i];
-	}
-
 	/*
 	 * Make sure the rate index selected for each TX rate is
 	 * included in the configured mask and change the rate indexes
@@ -623,8 +786,10 @@ static void rate_control_apply_mask(struct ieee80211_sub_if_data *sdata,
 		if (rates[i].idx < 0)
 			break;
 
-		rate_idx_match_mask(&rates[i], sband, chan_width, mask,
+		rate_flags = rates[i].flags;
-				    mcs_mask);
+		rate_idx_match_mask(&rates[i].idx, &rate_flags, sband,
+				    chan_width, mask, mcs_mask, vht_mask);
+		rates[i].flags = rate_flags;
 	}
 }
 
@@ -648,7 +813,7 @@ void ieee80211_get_tx_rates(struct ieee80211_vif *vif,
 	sband = sdata->local->hw.wiphy->bands[info->band];
 
 	if (ieee80211_is_data(hdr->frame_control))
-		rate_control_apply_mask(sdata, sta, sband, info, dest, max_rates);
+		rate_control_apply_mask(sdata, sta, sband, dest, max_rates);
 
 	if (dest[0].idx < 0)
 		__rate_control_send_low(&sdata->local->hw, sband, sta, info,
@@ -705,7 +870,10 @@ int rate_control_set_rates(struct ieee80211_hw *hw,
 {
 	struct sta_info *sta = container_of(pubsta, struct sta_info, sta);
 	struct ieee80211_sta_rates *old;
+	struct ieee80211_supported_band *sband;
 
+	sband = hw->wiphy->bands[ieee80211_get_sdata_band(sta->sdata)];
+	rate_control_apply_mask_ratetbl(sta, sband, rates);
 	/*
 	 * mac80211 guarantees that this function will not be called
 	 * concurrently, so the following RCU access is safe, even without

net/mac80211/rate.h

@@ -71,64 +71,10 @@ rate_control_tx_status_noskb(struct ieee80211_local *local,
 	spin_unlock_bh(&sta->rate_ctrl_lock);
 }
 
-static inline void rate_control_rate_init(struct sta_info *sta)
+void rate_control_rate_init(struct sta_info *sta);
-{
+void rate_control_rate_update(struct ieee80211_local *local,
-	struct ieee80211_local *local = sta->sdata->local;
-	struct rate_control_ref *ref = sta->rate_ctrl;
-	struct ieee80211_sta *ista = &sta->sta;
-	void *priv_sta = sta->rate_ctrl_priv;
-	struct ieee80211_supported_band *sband;
-	struct ieee80211_chanctx_conf *chanctx_conf;
-
-	ieee80211_sta_set_rx_nss(sta);
-
-	if (!ref)
-		return;
-
-	rcu_read_lock();
-
-	chanctx_conf = rcu_dereference(sta->sdata->vif.chanctx_conf);
-	if (WARN_ON(!chanctx_conf)) {
-		rcu_read_unlock();
-		return;
-	}
-
-	sband = local->hw.wiphy->bands[chanctx_conf->def.chan->band];
-
-	spin_lock_bh(&sta->rate_ctrl_lock);
-	ref->ops->rate_init(ref->priv, sband, &chanctx_conf->def, ista,
-			    priv_sta);
-	spin_unlock_bh(&sta->rate_ctrl_lock);
-	rcu_read_unlock();
-	set_sta_flag(sta, WLAN_STA_RATE_CONTROL);
-}
-
-static inline void rate_control_rate_update(struct ieee80211_local *local,
 				    struct ieee80211_supported_band *sband,
-				    struct sta_info *sta, u32 changed)
+				    struct sta_info *sta, u32 changed);
-{
-	struct rate_control_ref *ref = local->rate_ctrl;
-	struct ieee80211_sta *ista = &sta->sta;
-	void *priv_sta = sta->rate_ctrl_priv;
-	struct ieee80211_chanctx_conf *chanctx_conf;
-
-	if (ref && ref->ops->rate_update) {
-		rcu_read_lock();
-
-		chanctx_conf = rcu_dereference(sta->sdata->vif.chanctx_conf);
-		if (WARN_ON(!chanctx_conf)) {
-			rcu_read_unlock();
-			return;
-		}
-
-		spin_lock_bh(&sta->rate_ctrl_lock);
-		ref->ops->rate_update(ref->priv, sband, &chanctx_conf->def,
-				      ista, priv_sta, changed);
-		spin_unlock_bh(&sta->rate_ctrl_lock);
-		rcu_read_unlock();
-	}
-	drv_sta_rc_update(local, sta->sdata, &sta->sta, changed);
-}
 
 static inline void *rate_control_alloc_sta(struct rate_control_ref *ref,
 					   struct sta_info *sta, gfp_t gfp)

net/mac80211/rc80211_minstrel_ht.c

@@ -867,7 +867,13 @@ minstrel_ht_set_rate(struct minstrel_priv *mp, struct minstrel_ht_sta *mi,
 	else
 		idx = index % MCS_GROUP_RATES + (group->streams - 1) * 8;
 
-	if (offset > 0) {
+	/* enable RTS/CTS if needed:
+	 *  - if station is in dynamic SMPS (and streams > 1)
+	 *  - for fallback rates, to increase chances of getting through
+	 */
+	if (offset > 0 &&
+	    (mi->sta->smps_mode == IEEE80211_SMPS_DYNAMIC &&
+	     group->streams > 1)) {
 		ratetbl->rate[offset].count = ratetbl->rate[offset].count_rts;
 		flags |= IEEE80211_TX_RC_USE_RTS_CTS;
 	}

net/mac80211/rx.c

@@ -42,6 +42,51 @@ static inline void ieee80211_rx_stats(struct net_device *dev, u32 len)
 	u64_stats_update_end(&tstats->syncp);
 }
 
+static u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
+			       enum nl80211_iftype type)
+{
+	__le16 fc = hdr->frame_control;
+
+	if (ieee80211_is_data(fc)) {
+		if (len < 24) /* drop incorrect hdr len (data) */
+			return NULL;
+
+		if (ieee80211_has_a4(fc))
+			return NULL;
+		if (ieee80211_has_tods(fc))
+			return hdr->addr1;
+		if (ieee80211_has_fromds(fc))
+			return hdr->addr2;
+
+		return hdr->addr3;
+	}
+
+	if (ieee80211_is_mgmt(fc)) {
+		if (len < 24) /* drop incorrect hdr len (mgmt) */
+			return NULL;
+		return hdr->addr3;
+	}
+
+	if (ieee80211_is_ctl(fc)) {
+		if (ieee80211_is_pspoll(fc))
+			return hdr->addr1;
+
+		if (ieee80211_is_back_req(fc)) {
+			switch (type) {
+			case NL80211_IFTYPE_STATION:
+				return hdr->addr2;
+			case NL80211_IFTYPE_AP:
+			case NL80211_IFTYPE_AP_VLAN:
+				return hdr->addr1;
+			default:
+				break; /* fall through to the return */
+			}
+		}
+	}
+
+	return NULL;
+}
+
 /*
  * monitor mode reception
  *
@@ -77,8 +122,7 @@ static inline bool should_drop_frame(struct sk_buff *skb, int present_fcs_len,
 	hdr = (void *)(skb->data + rtap_vendor_space);
 
 	if (status->flag & (RX_FLAG_FAILED_FCS_CRC |
-			    RX_FLAG_FAILED_PLCP_CRC |
+			    RX_FLAG_FAILED_PLCP_CRC))
-			    RX_FLAG_AMPDU_IS_ZEROLEN))
 		return true;
 
 	if (unlikely(skb->len < 16 + present_fcs_len + rtap_vendor_space))
@@ -346,10 +390,6 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
 			cpu_to_le32(1 << IEEE80211_RADIOTAP_AMPDU_STATUS);
 		put_unaligned_le32(status->ampdu_reference, pos);
 		pos += 4;
-		if (status->flag & RX_FLAG_AMPDU_REPORT_ZEROLEN)
-			flags |= IEEE80211_RADIOTAP_AMPDU_REPORT_ZEROLEN;
-		if (status->flag & RX_FLAG_AMPDU_IS_ZEROLEN)
-			flags |= IEEE80211_RADIOTAP_AMPDU_IS_ZEROLEN;
 		if (status->flag & RX_FLAG_AMPDU_LAST_KNOWN)
 			flags |= IEEE80211_RADIOTAP_AMPDU_LAST_KNOWN;
 		if (status->flag & RX_FLAG_AMPDU_IS_LAST)
@@ -1093,11 +1133,6 @@ ieee80211_rx_h_check(struct ieee80211_rx_data *rx)
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
 
-	if (unlikely(rx->skb->len < 16)) {
-		I802_DEBUG_INC(rx->local->rx_handlers_drop_short);
-		return RX_DROP_MONITOR;
-	}
-
 	/* Drop disallowed frame classes based on STA auth/assoc state;
 	 * IEEE 802.11, Chap 5.5.
 	 *
@@ -1240,22 +1275,22 @@ static void sta_ps_end(struct sta_info *sta)
 	ieee80211_sta_ps_deliver_wakeup(sta);
 }
 
-int ieee80211_sta_ps_transition(struct ieee80211_sta *sta, bool start)
+int ieee80211_sta_ps_transition(struct ieee80211_sta *pubsta, bool start)
 {
-	struct sta_info *sta_inf = container_of(sta, struct sta_info, sta);
+	struct sta_info *sta = container_of(pubsta, struct sta_info, sta);
 	bool in_ps;
 
-	WARN_ON(!ieee80211_hw_check(&sta_inf->local->hw, AP_LINK_PS));
+	WARN_ON(!ieee80211_hw_check(&sta->local->hw, AP_LINK_PS));
 
 	/* Don't let the same PS state be set twice */
-	in_ps = test_sta_flag(sta_inf, WLAN_STA_PS_STA);
+	in_ps = test_sta_flag(sta, WLAN_STA_PS_STA);
 	if ((start && in_ps) || (!start && !in_ps))
 		return -EINVAL;
 
 	if (start)
-		sta_ps_start(sta_inf);
+		sta_ps_start(sta);
 	else
-		sta_ps_end(sta_inf);
+		sta_ps_end(sta);
 
 	return 0;
 }
@@ -1393,7 +1428,7 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
 	sta->rx_bytes += rx->skb->len;
 	if (!(status->flag & RX_FLAG_NO_SIGNAL_VAL)) {
 		sta->last_signal = status->signal;
-		ewma_add(&sta->avg_signal, -status->signal);
+		ewma_signal_add(&sta->avg_signal, -status->signal);
 	}
 
 	if (status->chains) {
@@ -1405,7 +1440,7 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
 				continue;
 
 			sta->chain_signal_last[i] = signal;
-			ewma_add(&sta->chain_signal_avg[i], -signal);
+			ewma_signal_add(&sta->chain_signal_avg[i], -signal);
 		}
 	}
 
@@ -1647,7 +1682,6 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx)
 		if (unlikely(rx->key->flags & KEY_FLAG_TAINTED))
 			return RX_DROP_MONITOR;
 
-		rx->key->tx_rx_count++;
 		/* TODO: add threshold stuff again */
 	} else {
 		return RX_DROP_MONITOR;
@@ -1883,7 +1917,6 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx)
 
 	/* Complete frame has been reassembled - process it now */
 	status = IEEE80211_SKB_RXCB(rx->skb);
-	status->rx_flags |= IEEE80211_RX_FRAGMENTED;
 
  out:
 	ieee80211_led_rx(rx->local);
@@ -2108,9 +2141,8 @@ ieee80211_deliver_skb(struct ieee80211_rx_data *rx)
 		/* deliver to local stack */
 		skb->protocol = eth_type_trans(skb, dev);
 		memset(skb->cb, 0, sizeof(skb->cb));
-		if (!(rx->flags & IEEE80211_RX_REORDER_TIMER) &&
+		if (rx->napi)
-		    rx->local->napi)
+			napi_gro_receive(rx->napi, skb);
-			napi_gro_receive(rx->local->napi, skb);
 		else
 			netif_receive_skb(skb);
 	}
@@ -2378,9 +2410,8 @@ ieee80211_rx_h_data(struct ieee80211_rx_data *rx)
 		    tf->category == WLAN_CATEGORY_TDLS &&
 		    (tf->action_code == WLAN_TDLS_CHANNEL_SWITCH_REQUEST ||
 		     tf->action_code == WLAN_TDLS_CHANNEL_SWITCH_RESPONSE)) {
-			rx->skb->pkt_type = IEEE80211_SDATA_QUEUE_TDLS_CHSW;
+			skb_queue_tail(&local->skb_queue_tdls_chsw, rx->skb);
-			skb_queue_tail(&sdata->skb_queue, rx->skb);
+			schedule_work(&local->tdls_chsw_work);
-			ieee80211_queue_work(&rx->local->hw, &sdata->work);
 			if (rx->sta)
 				rx->sta->rx_packets++;
 
@@ -3004,7 +3035,6 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_data *rx)
 	return RX_QUEUED;
 }
 
-/* TODO: use IEEE80211_RX_FRAGMENTED */
 static void ieee80211_rx_cooked_monitor(struct ieee80211_rx_data *rx,
 					struct ieee80211_rate *rate)
 {
@@ -3216,7 +3246,7 @@ void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid)
 		/* This is OK -- must be QoS data frame */
 		.security_idx = tid,
 		.seqno_idx = tid,
-		.flags = IEEE80211_RX_REORDER_TIMER,
+		.napi = NULL, /* must be NULL to not have races */
 	};
 	struct tid_ampdu_rx *tid_agg_rx;
 
@@ -3286,7 +3316,7 @@ static bool ieee80211_accept_frame(struct ieee80211_rx_data *rx)
 	case NL80211_IFTYPE_OCB:
 		if (!bssid)
 			return false;
-		if (ieee80211_is_beacon(hdr->frame_control))
+		if (!ieee80211_is_data_present(hdr->frame_control))
 			return false;
 		if (!is_broadcast_ether_addr(bssid))
 			return false;
@@ -3393,7 +3423,8 @@ static bool ieee80211_prepare_and_rx_handle(struct ieee80211_rx_data *rx,
  * be called with rcu_read_lock protection.
  */
 static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
-					 struct sk_buff *skb)
+					 struct sk_buff *skb,
+					 struct napi_struct *napi)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 	struct ieee80211_sub_if_data *sdata;
@@ -3409,6 +3440,7 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
 	memset(&rx, 0, sizeof(rx));
 	rx.skb = skb;
 	rx.local = local;
+	rx.napi = napi;
 
 	if (ieee80211_is_data(fc) || ieee80211_is_mgmt(fc))
 		I802_DEBUG_INC(local->dot11ReceivedFragmentCount);
@@ -3510,7 +3542,8 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
  * This is the receive path handler. It is called by a low level driver when an
  * 802.11 MPDU is received from the hardware.
  */
-void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb)
+void ieee80211_rx_napi(struct ieee80211_hw *hw, struct sk_buff *skb,
+		       struct napi_struct *napi)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 	struct ieee80211_rate *rate = NULL;
@@ -3609,7 +3642,7 @@ void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb)
 	ieee80211_tpt_led_trig_rx(local,
 			((struct ieee80211_hdr *)skb->data)->frame_control,
 			skb->len);
-	__ieee80211_rx_handle_packet(hw, skb);
+	__ieee80211_rx_handle_packet(hw, skb, napi);
 
 	rcu_read_unlock();
 
@@ -3617,7 +3650,7 @@ void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb)
  drop:
 	kfree_skb(skb);
 }
-EXPORT_SYMBOL(ieee80211_rx);
+EXPORT_SYMBOL(ieee80211_rx_napi);
 
 /* This is a version of the rx handler that can be called from hard irq
  * context. Post the skb on the queue and schedule the tasklet */

net/mac80211/sta_info.c

@@ -68,7 +68,7 @@ static const struct rhashtable_params sta_rht_params = {
 	.nelem_hint = 3, /* start small */
 	.automatic_shrinking = true,
 	.head_offset = offsetof(struct sta_info, hash_node),
-	.key_offset = offsetof(struct sta_info, sta.addr),
+	.key_offset = offsetof(struct sta_info, addr),
 	.key_len = ETH_ALEN,
 	.hashfn = sta_addr_hash,
 	.max_size = CONFIG_MAC80211_STA_HASH_MAX_SIZE,
@@ -249,6 +249,9 @@ void sta_info_free(struct ieee80211_local *local, struct sta_info *sta)
 	if (sta->sta.txq[0])
 		kfree(to_txq_info(sta->sta.txq[0]));
 	kfree(rcu_dereference_raw(sta->sta.rates));
+#ifdef CONFIG_MAC80211_MESH
+	kfree(sta->mesh);
+#endif
 	kfree(sta);
 }
 
@@ -313,13 +316,19 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
 	INIT_WORK(&sta->ampdu_mlme.work, ieee80211_ba_session_work);
 	mutex_init(&sta->ampdu_mlme.mtx);
 #ifdef CONFIG_MAC80211_MESH
-	spin_lock_init(&sta->plink_lock);
+	if (ieee80211_vif_is_mesh(&sdata->vif)) {
-	if (ieee80211_vif_is_mesh(&sdata->vif) &&
+		sta->mesh = kzalloc(sizeof(*sta->mesh), gfp);
-	    !sdata->u.mesh.user_mpm)
+		if (!sta->mesh)
-		init_timer(&sta->plink_timer);
+			goto free;
-	sta->nonpeer_pm = NL80211_MESH_POWER_ACTIVE;
+		spin_lock_init(&sta->mesh->plink_lock);
+		if (ieee80211_vif_is_mesh(&sdata->vif) &&
+		    !sdata->u.mesh.user_mpm)
+			init_timer(&sta->mesh->plink_timer);
+		sta->mesh->nonpeer_pm = NL80211_MESH_POWER_ACTIVE;
+	}
 #endif
 
+	memcpy(sta->addr, addr, ETH_ALEN);
 	memcpy(sta->sta.addr, addr, ETH_ALEN);
 	sta->local = local;
 	sta->sdata = sdata;
@@ -332,9 +341,9 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
 
 	ktime_get_ts(&uptime);
 	sta->last_connected = uptime.tv_sec;
-	ewma_init(&sta->avg_signal, 1024, 8);
+	ewma_signal_init(&sta->avg_signal);
 	for (i = 0; i < ARRAY_SIZE(sta->chain_signal_avg); i++)
-		ewma_init(&sta->chain_signal_avg[i], 1024, 8);
+		ewma_signal_init(&sta->chain_signal_avg[i]);
 
 	if (local->ops->wake_tx_queue) {
 		void *txq_data;
@@ -405,6 +414,9 @@ free_txq:
 	if (sta->sta.txq[0])
 		kfree(to_txq_info(sta->sta.txq[0]));
 free:
+#ifdef CONFIG_MAC80211_MESH
+	kfree(sta->mesh);
+#endif
 	kfree(sta);
 	return NULL;
 }
@@ -623,7 +635,7 @@ static void __sta_info_recalc_tim(struct sta_info *sta, bool ignore_pending)
 	bool indicate_tim = false;
 	u8 ignore_for_tim = sta->sta.uapsd_queues;
 	int ac;
-	u16 id;
+	u16 id = sta->sta.aid;
 
 	if (sta->sdata->vif.type == NL80211_IFTYPE_AP ||
 	    sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {
@@ -631,12 +643,9 @@ static void __sta_info_recalc_tim(struct sta_info *sta, bool ignore_pending)
 			return;
 
 		ps = &sta->sdata->bss->ps;
-		id = sta->sta.aid;
 #ifdef CONFIG_MAC80211_MESH
 	} else if (ieee80211_vif_is_mesh(&sta->sdata->vif)) {
 		ps = &sta->sdata->u.mesh.ps;
-		/* TIM map only for 1 <= PLID <= IEEE80211_MAX_AID */
-		id = sta->plid % (IEEE80211_MAX_AID + 1);
 #endif
 	} else {
 		return;
@@ -1887,7 +1896,8 @@ void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 		}
 
 		if (!(sinfo->filled & BIT(NL80211_STA_INFO_SIGNAL_AVG))) {
-			sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
+			sinfo->signal_avg =
+				(s8) -ewma_signal_read(&sta->avg_signal);
 			sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL_AVG);
 		}
 	}
@@ -1902,7 +1912,7 @@ void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 		for (i = 0; i < ARRAY_SIZE(sinfo->chain_signal); i++) {
 			sinfo->chain_signal[i] = sta->chain_signal_last[i];
 			sinfo->chain_signal_avg[i] =
-				(s8) -ewma_read(&sta->chain_signal_avg[i]);
+				(s8) -ewma_signal_read(&sta->chain_signal_avg[i]);
 		}
 	}
 
@@ -1956,16 +1966,16 @@ void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 				 BIT(NL80211_STA_INFO_PEER_PM) |
 				 BIT(NL80211_STA_INFO_NONPEER_PM);
 
-		sinfo->llid = sta->llid;
+		sinfo->llid = sta->mesh->llid;
-		sinfo->plid = sta->plid;
+		sinfo->plid = sta->mesh->plid;
-		sinfo->plink_state = sta->plink_state;
+		sinfo->plink_state = sta->mesh->plink_state;
 		if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) {
 			sinfo->filled |= BIT(NL80211_STA_INFO_T_OFFSET);
-			sinfo->t_offset = sta->t_offset;
+			sinfo->t_offset = sta->mesh->t_offset;
 		}
-		sinfo->local_pm = sta->local_pm;
+		sinfo->local_pm = sta->mesh->local_pm;
-		sinfo->peer_pm = sta->peer_pm;
+		sinfo->peer_pm = sta->mesh->peer_pm;
-		sinfo->nonpeer_pm = sta->nonpeer_pm;
+		sinfo->nonpeer_pm = sta->mesh->nonpeer_pm;
 #endif
 	}
 

net/mac80211/sta_info.h

@@ -53,6 +53,8 @@
  * @WLAN_STA_TDLS_CHAN_SWITCH: This TDLS peer supports TDLS channel-switching
  * @WLAN_STA_TDLS_OFF_CHANNEL: The local STA is currently off-channel with this
  *	TDLS peer
+ * @WLAN_STA_TDLS_WIDER_BW: This TDLS peer supports working on a wider bw on
+ *	the BSS base channel.
  * @WLAN_STA_UAPSD: Station requested unscheduled SP while driver was
  *	keeping station in power-save mode, reply when the driver
  *	unblocks the station.
@@ -84,6 +86,7 @@ enum ieee80211_sta_info_flags {
 	WLAN_STA_TDLS_INITIATOR,
 	WLAN_STA_TDLS_CHAN_SWITCH,
 	WLAN_STA_TDLS_OFF_CHANNEL,
+	WLAN_STA_TDLS_WIDER_BW,
 	WLAN_STA_UAPSD,
 	WLAN_STA_SP,
 	WLAN_STA_4ADDR_EVENT,
@@ -269,6 +272,56 @@ struct ieee80211_fast_tx {
 	struct rcu_head rcu_head;
 };
 
+/**
+ * struct mesh_sta - mesh STA information
+ * @plink_lock: serialize access to plink fields
+ * @llid: Local link ID
+ * @plid: Peer link ID
+ * @aid: local aid supplied by peer
+ * @reason: Cancel reason on PLINK_HOLDING state
+ * @plink_retries: Retries in establishment
+ * @plink_state: peer link state
+ * @plink_timeout: timeout of peer link
+ * @plink_timer: peer link watch timer
+ * @t_offset: timing offset relative to this host
+ * @t_offset_setpoint: reference timing offset of this sta to be used when
+ * 	calculating clockdrift
+ * @local_pm: local link-specific power save mode
+ * @peer_pm: peer-specific power save mode towards local STA
+ * @nonpeer_pm: STA power save mode towards non-peer neighbors
+ * @processed_beacon: set to true after peer rates and capabilities are
+ *	processed
+ * @fail_avg: moving percentage of failed MSDUs
+ */
+struct mesh_sta {
+	struct timer_list plink_timer;
+
+	s64 t_offset;
+	s64 t_offset_setpoint;
+
+	spinlock_t plink_lock;
+	u16 llid;
+	u16 plid;
+	u16 aid;
+	u16 reason;
+	u8 plink_retries;
+
+	bool processed_beacon;
+
+	enum nl80211_plink_state plink_state;
+	u32 plink_timeout;
+
+	/* mesh power save */
+	enum nl80211_mesh_power_mode local_pm;
+	enum nl80211_mesh_power_mode peer_pm;
+	enum nl80211_mesh_power_mode nonpeer_pm;
+
+	/* moving percentage of failed MSDUs */
+	unsigned int fail_avg;
+};
+
+DECLARE_EWMA(signal, 1024, 8)
+
 /**
  * struct sta_info - STA information
  *
@@ -278,12 +331,13 @@ struct ieee80211_fast_tx {
  * @list: global linked list entry
  * @free_list: list entry for keeping track of stations to free
  * @hash_node: hash node for rhashtable
+ * @addr: station's MAC address - duplicated from public part to
+ *	let the hash table work with just a single cacheline
  * @local: pointer to the global information
  * @sdata: virtual interface this station belongs to
  * @ptk: peer keys negotiated with this station, if any
  * @ptk_idx: last installed peer key index
  * @gtk: group keys negotiated with this station, if any
- * @gtk_idx: last installed group key index
  * @rate_ctrl: rate control algorithm reference
  * @rate_ctrl_lock: spinlock used to protect rate control data
  *	(data inside the algorithm, so serializes calls there)
@@ -318,30 +372,17 @@ struct ieee80211_fast_tx {
  * @last_signal: signal of last received frame from this STA
  * @avg_signal: moving average of signal of received frames from this STA
  * @last_ack_signal: signal of last received Ack frame from this STA
- * @last_seq_ctrl: last received seq/frag number from this STA (per RX queue)
+ * @last_seq_ctrl: last received seq/frag number from this STA (per TID
+ *	plus one for non-QoS frames)
  * @tx_filtered_count: number of frames the hardware filtered for this STA
  * @tx_retry_failed: number of frames that failed retry
  * @tx_retry_count: total number of retries for frames to this STA
- * @fail_avg: moving percentage of failed MSDUs
  * @tx_packets: number of RX/TX MSDUs
  * @tx_bytes: number of bytes transmitted to this STA
  * @tid_seq: per-TID sequence numbers for sending to this STA
  * @ampdu_mlme: A-MPDU state machine state
  * @timer_to_tid: identity mapping to ID timers
- * @plink_lock: serialize access to plink fields
+ * @mesh: mesh STA information
- * @llid: Local link ID
- * @plid: Peer link ID
- * @reason: Cancel reason on PLINK_HOLDING state
- * @plink_retries: Retries in establishment
- * @plink_state: peer link state
- * @plink_timeout: timeout of peer link
- * @plink_timer: peer link watch timer
- * @t_offset: timing offset relative to this host
- * @t_offset_setpoint: reference timing offset of this sta to be used when
- * 	calculating clockdrift
- * @local_pm: local link-specific power save mode
- * @peer_pm: peer-specific power save mode towards local STA
- * @nonpeer_pm: STA power save mode towards non-peer neighbors
  * @debugfs: debug filesystem info
  * @dead: set to true when sta is unlinked
  * @uploaded: set to true when sta is uploaded to the driver
@@ -369,19 +410,19 @@ struct ieee80211_fast_tx {
  * @rx_msdu: MSDUs received from this station, using IEEE80211_NUM_TID
  *	entry for non-QoS frames
  * @fast_tx: TX fastpath information
- * @processed_beacon: set to true after peer rates and capabilities are
+ * @tdls_chandef: a TDLS peer can have a wider chandef that is compatible to
- *	processed
+ *	the BSS one.
  */
 struct sta_info {
 	/* General information, mostly static */
 	struct list_head list, free_list;
 	struct rcu_head rcu_head;
 	struct rhash_head hash_node;
+	u8 addr[ETH_ALEN];
 	struct ieee80211_local *local;
 	struct ieee80211_sub_if_data *sdata;
 	struct ieee80211_key __rcu *gtk[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
 	struct ieee80211_key __rcu *ptk[NUM_DEFAULT_KEYS];
-	u8 gtk_idx;
 	u8 ptk_idx;
 	struct rate_control_ref *rate_ctrl;
 	void *rate_ctrl_priv;
@@ -390,6 +431,10 @@ struct sta_info {
 
 	struct ieee80211_fast_tx __rcu *fast_tx;
 
+#ifdef CONFIG_MAC80211_MESH
+	struct mesh_sta *mesh;
+#endif
+
 	struct work_struct drv_deliver_wk;
 
 	u16 listen_interval;
@@ -419,12 +464,12 @@ struct sta_info {
 	unsigned long rx_fragments;
 	unsigned long rx_dropped;
 	int last_signal;
-	struct ewma avg_signal;
+	struct ewma_signal avg_signal;
 	int last_ack_signal;
 
 	u8 chains;
 	s8 chain_signal_last[IEEE80211_MAX_CHAINS];
-	struct ewma chain_signal_avg[IEEE80211_MAX_CHAINS];
+	struct ewma_signal chain_signal_avg[IEEE80211_MAX_CHAINS];
 
 	/* Plus 1 for non-QoS frames */
 	__le16 last_seq_ctrl[IEEE80211_NUM_TIDS + 1];
@@ -432,8 +477,6 @@ struct sta_info {
 	/* Updated from TX status path only, no locking requirements */
 	unsigned long tx_filtered_count;
 	unsigned long tx_retry_failed, tx_retry_count;
-	/* moving percentage of failed MSDUs */
-	unsigned int fail_avg;
 
 	/* Updated from TX path only, no locking requirements */
 	u64 tx_packets[IEEE80211_NUM_ACS];
@@ -455,29 +498,6 @@ struct sta_info {
 	struct sta_ampdu_mlme ampdu_mlme;
 	u8 timer_to_tid[IEEE80211_NUM_TIDS];
 
-#ifdef CONFIG_MAC80211_MESH
-	/*
-	 * Mesh peer link attributes, protected by plink_lock.
-	 * TODO: move to a sub-structure that is referenced with pointer?
-	 */
-	spinlock_t plink_lock;
-	u16 llid;
-	u16 plid;
-	u16 reason;
-	u8 plink_retries;
-	enum nl80211_plink_state plink_state;
-	u32 plink_timeout;
-	struct timer_list plink_timer;
-
-	s64 t_offset;
-	s64 t_offset_setpoint;
-	/* mesh power save */
-	enum nl80211_mesh_power_mode local_pm;
-	enum nl80211_mesh_power_mode peer_pm;
-	enum nl80211_mesh_power_mode nonpeer_pm;
-	bool processed_beacon;
-#endif
-
 #ifdef CONFIG_MAC80211_DEBUGFS
 	struct sta_info_debugfsdentries {
 		struct dentry *dir;
@@ -498,6 +518,8 @@ struct sta_info {
 
 	u8 reserved_tid;
 
+	struct cfg80211_chan_def tdls_chandef;
+
 	/* keep last! */
 	struct ieee80211_sta sta;
 };
@@ -505,7 +527,7 @@ struct sta_info {
 static inline enum nl80211_plink_state sta_plink_state(struct sta_info *sta)
 {
 #ifdef CONFIG_MAC80211_MESH
-	return sta->plink_state;
+	return sta->mesh->plink_state;
 #endif
 	return NL80211_PLINK_LISTEN;
 }
@@ -608,7 +630,7 @@ u32 sta_addr_hash(const void *key, u32 length, u32 seed);
 			       _sta_bucket_idx(tbl, _addr),		\
 			       hash_node)				\
 	/* compare address and run code only if it matches */		\
-	if (ether_addr_equal(_sta->sta.addr, (_addr)))
+	if (ether_addr_equal(_sta->addr, (_addr)))
 
 /*
  * Get STA info by index, BROKEN!

net/mac80211/status.c

@@ -515,7 +515,7 @@ static void ieee80211_report_used_skb(struct ieee80211_local *local,
 
 		if (!sdata) {
 			skb->dev = NULL;
-		} else if (info->flags & IEEE80211_TX_INTFL_MLME_CONN_TX) {
+		} else {
 			unsigned int hdr_size =
 				ieee80211_hdrlen(hdr->frame_control);
 
@@ -529,9 +529,6 @@ static void ieee80211_report_used_skb(struct ieee80211_local *local,
 				ieee80211_mgd_conn_tx_status(sdata,
 							     hdr->frame_control,
 							     acked);
-		} else {
-			/* we assign ack frame ID for the others */
-			WARN_ON(1);
 		}
 
 		rcu_read_unlock();

net/mac80211/tdls.c

@@ -4,6 +4,7 @@
  * Copyright 2006-2010	Johannes Berg <johannes@sipsolutions.net>
  * Copyright 2014, Intel Corporation
  * Copyright 2014  Intel Mobile Communications GmbH
+ * Copyright 2015  Intel Deutschland GmbH
  *
  * This file is GPLv2 as found in COPYING.
  */
@@ -11,6 +12,7 @@
 #include <linux/ieee80211.h>
 #include <linux/log2.h>
 #include <net/cfg80211.h>
+#include <linux/rtnetlink.h>
 #include "ieee80211_i.h"
 #include "driver-ops.h"
 
@@ -35,20 +37,28 @@ void ieee80211_tdls_peer_del_work(struct work_struct *wk)
 	mutex_unlock(&local->mtx);
 }
 
-static void ieee80211_tdls_add_ext_capab(struct ieee80211_local *local,
+static void ieee80211_tdls_add_ext_capab(struct ieee80211_sub_if_data *sdata,
 					 struct sk_buff *skb)
 {
-	u8 *pos = (void *)skb_put(skb, 7);
+	struct ieee80211_local *local = sdata->local;
 	bool chan_switch = local->hw.wiphy->features &
 			   NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
+	bool wider_band = ieee80211_hw_check(&local->hw, TDLS_WIDER_BW);
+	enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
+	struct ieee80211_supported_band *sband = local->hw.wiphy->bands[band];
+	bool vht = sband && sband->vht_cap.vht_supported;
+	u8 *pos = (void *)skb_put(skb, 10);
 
 	*pos++ = WLAN_EID_EXT_CAPABILITY;
-	*pos++ = 5; /* len */
+	*pos++ = 8; /* len */
 	*pos++ = 0x0;
 	*pos++ = 0x0;
 	*pos++ = 0x0;
 	*pos++ = chan_switch ? WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH : 0;
 	*pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
+	*pos++ = 0;
+	*pos++ = 0;
+	*pos++ = (vht && wider_band) ? WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED : 0;
 }
 
 static u8
@@ -283,6 +293,60 @@ static void ieee80211_tdls_add_wmm_param_ie(struct ieee80211_sub_if_data *sdata,
 	}
 }
 
+static void
+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 };
+	struct cfg80211_chan_def uc = sta->tdls_chandef;
+	enum nl80211_chan_width max_width = ieee80211_get_sta_bw(&sta->sta);
+	int i;
+
+	/* only support upgrading non-narrow channels up to 80Mhz */
+	if (max_width == NL80211_CHAN_WIDTH_5 ||
+	    max_width == NL80211_CHAN_WIDTH_10)
+		return;
+
+	if (max_width > NL80211_CHAN_WIDTH_80)
+		max_width = NL80211_CHAN_WIDTH_80;
+
+	if (uc.width == max_width)
+		return;
+	/*
+	 * Channel usage constrains in the IEEE802.11ac-2013 specification only
+	 * allow expanding a 20MHz channel to 80MHz in a single way. In
+	 * addition, there are no 40MHz allowed channels that are not part of
+	 * the allowed 80MHz range in the 5GHz spectrum (the relevant one here).
+	 */
+	for (i = 0; i < ARRAY_SIZE(centers_80mhz); i++)
+		if (abs(uc.chan->center_freq - centers_80mhz[i]) <= 30) {
+			uc.center_freq1 = centers_80mhz[i];
+			uc.width = NL80211_CHAN_WIDTH_80;
+			break;
+		}
+
+	if (!uc.center_freq1)
+		return;
+
+	/* proceed to downgrade the chandef until usable or the same */
+	while (uc.width > max_width &&
+	       !cfg80211_reg_can_beacon(sdata->local->hw.wiphy,
+					&uc, sdata->wdev.iftype))
+		ieee80211_chandef_downgrade(&uc);
+
+	if (!cfg80211_chandef_identical(&uc, &sta->tdls_chandef)) {
+		tdls_dbg(sdata, "TDLS ch width upgraded %d -> %d\n",
+			 sta->tdls_chandef.width, uc.width);
+
+		/*
+		 * the station is not yet authorized when BW upgrade is done,
+		 * locking is not required
+		 */
+		sta->tdls_chandef = uc;
+	}
+}
+
 static void
 ieee80211_tdls_add_setup_start_ies(struct ieee80211_sub_if_data *sdata,
 				   struct sk_buff *skb, const u8 *peer,
@@ -320,7 +384,7 @@ ieee80211_tdls_add_setup_start_ies(struct ieee80211_sub_if_data *sdata,
 		offset = noffset;
 	}
 
-	ieee80211_tdls_add_ext_capab(local, skb);
+	ieee80211_tdls_add_ext_capab(sdata, skb);
 
 	/* add the QoS element if we support it */
 	if (local->hw.queues >= IEEE80211_NUM_ACS &&
@@ -350,15 +414,17 @@ ieee80211_tdls_add_setup_start_ies(struct ieee80211_sub_if_data *sdata,
 		offset = noffset;
 	}
 
-	rcu_read_lock();
+	mutex_lock(&local->sta_mtx);
 
 	/* we should have the peer STA if we're already responding */
 	if (action_code == WLAN_TDLS_SETUP_RESPONSE) {
 		sta = sta_info_get(sdata, peer);
 		if (WARN_ON_ONCE(!sta)) {
-			rcu_read_unlock();
+			mutex_unlock(&local->sta_mtx);
 			return;
 		}
+
+		sta->tdls_chandef = sdata->vif.bss_conf.chandef;
 	}
 
 	ieee80211_tdls_add_oper_classes(sdata, skb);
@@ -384,10 +450,6 @@ ieee80211_tdls_add_setup_start_ies(struct ieee80211_sub_if_data *sdata,
 		ieee80211_ie_build_ht_cap(pos, &ht_cap, ht_cap.cap);
 	} else if (action_code == WLAN_TDLS_SETUP_RESPONSE &&
 		   ht_cap.ht_supported && sta->sta.ht_cap.ht_supported) {
-		/* disable SMPS in TDLS responder */
-		sta->sta.ht_cap.cap |= WLAN_HT_CAP_SM_PS_DISABLED
-					<< IEEE80211_HT_CAP_SM_PS_SHIFT;
-
 		/* the peer caps are already intersected with our own */
 		memcpy(&ht_cap, &sta->sta.ht_cap, sizeof(ht_cap));
 
@@ -448,9 +510,16 @@ ieee80211_tdls_add_setup_start_ies(struct ieee80211_sub_if_data *sdata,
 
 		pos = skb_put(skb, sizeof(struct ieee80211_vht_cap) + 2);
 		ieee80211_ie_build_vht_cap(pos, &vht_cap, vht_cap.cap);
+
+		/*
+		 * if both peers support WIDER_BW, we can expand the chandef to
+		 * a wider compatible one, up to 80MHz
+		 */
+		if (test_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW))
+			ieee80211_tdls_chandef_vht_upgrade(sdata, sta);
 	}
 
-	rcu_read_unlock();
+	mutex_unlock(&local->sta_mtx);
 
 	/* add any remaining IEs */
 	if (extra_ies_len) {
@@ -474,15 +543,17 @@ ieee80211_tdls_add_setup_cfm_ies(struct ieee80211_sub_if_data *sdata,
 	enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
 	u8 *pos;
 
-	rcu_read_lock();
+	mutex_lock(&local->sta_mtx);
 
 	sta = sta_info_get(sdata, peer);
 	ap_sta = sta_info_get(sdata, ifmgd->bssid);
 	if (WARN_ON_ONCE(!sta || !ap_sta)) {
-		rcu_read_unlock();
+		mutex_unlock(&local->sta_mtx);
 		return;
 	}
 
+	sta->tdls_chandef = sdata->vif.bss_conf.chandef;
+
 	/* add any custom IEs that go before the QoS IE */
 	if (extra_ies_len) {
 		static const u8 before_qos[] = {
@@ -530,12 +601,19 @@ ieee80211_tdls_add_setup_cfm_ies(struct ieee80211_sub_if_data *sdata,
 
 	/* only include VHT-operation if not on the 2.4GHz band */
 	if (band != IEEE80211_BAND_2GHZ && sta->sta.vht_cap.vht_supported) {
+		/*
+		 * if both peers support WIDER_BW, we can expand the chandef to
+		 * a wider compatible one, up to 80MHz
+		 */
+		if (test_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW))
+			ieee80211_tdls_chandef_vht_upgrade(sdata, sta);
+
 		pos = skb_put(skb, 2 + sizeof(struct ieee80211_vht_operation));
 		ieee80211_ie_build_vht_oper(pos, &sta->sta.vht_cap,
-					    &sdata->vif.bss_conf.chandef);
+					    &sta->tdls_chandef);
 	}
 
-	rcu_read_unlock();
+	mutex_unlock(&local->sta_mtx);
 
 	/* add any remaining IEs */
 	if (extra_ies_len) {
@@ -784,7 +862,7 @@ ieee80211_tdls_build_mgmt_packet_data(struct ieee80211_sub_if_data *sdata,
 			       max(sizeof(struct ieee80211_mgmt),
 				   sizeof(struct ieee80211_tdls_data)) +
 			       50 + /* supported rates */
-			       7 + /* ext capab */
+			       10 + /* ext capab */
 			       26 + /* max(WMM-info, WMM-param) */
 			       2 + max(sizeof(struct ieee80211_ht_cap),
 				       sizeof(struct ieee80211_ht_operation)) +
@@ -983,8 +1061,17 @@ ieee80211_tdls_mgmt_setup(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;
+	enum ieee80211_smps_mode smps_mode = sdata->u.mgd.driver_smps_mode;
 	int ret;
 
+	/* don't support setup with forced SMPS mode that's not off */
+	if (smps_mode != IEEE80211_SMPS_AUTOMATIC &&
+	    smps_mode != IEEE80211_SMPS_OFF) {
+		tdls_dbg(sdata, "Aborting TDLS setup due to SMPS mode %d\n",
+			 smps_mode);
+		return -ENOTSUPP;
+	}
+
 	mutex_lock(&local->mtx);
 
 	/* we don't support concurrent TDLS peer setups */
@@ -1146,6 +1233,22 @@ int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
 	return ret;
 }
 
+static void iee80211_tdls_recalc_chanctx(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_chanctx_conf *conf;
+	struct ieee80211_chanctx *ctx;
+
+	mutex_lock(&local->chanctx_mtx);
+	conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
+					 lockdep_is_held(&local->chanctx_mtx));
+	if (conf) {
+		ctx = container_of(conf, struct ieee80211_chanctx, conf);
+		ieee80211_recalc_chanctx_chantype(local, ctx);
+	}
+	mutex_unlock(&local->chanctx_mtx);
+}
+
 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
 			const u8 *peer, enum nl80211_tdls_operation oper)
 {
@@ -1182,6 +1285,8 @@ int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
 			break;
 		}
 
+		iee80211_tdls_recalc_chanctx(sdata);
+
 		rcu_read_lock();
 		sta = sta_info_get(sdata, peer);
 		if (!sta) {
@@ -1213,6 +1318,7 @@ int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
 		ieee80211_flush_queues(local, sdata, false);
 
 		ret = sta_info_destroy_addr(sdata, peer);
+		iee80211_tdls_recalc_chanctx(sdata);
 		break;
 	default:
 		ret = -ENOTSUPP;
@@ -1224,6 +1330,10 @@ int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
 		eth_zero_addr(sdata->u.mgd.tdls_peer);
 	}
 
+	if (ret == 0)
+		ieee80211_queue_work(&sdata->local->hw,
+				     &sdata->u.mgd.request_smps_work);
+
 	mutex_unlock(&local->mtx);
 	return ret;
 }
@@ -1627,6 +1737,31 @@ ieee80211_process_tdls_channel_switch_req(struct ieee80211_sub_if_data *sdata,
 		return -EINVAL;
 	}
 
+	if (!elems.sec_chan_offs) {
+		chan_type = NL80211_CHAN_HT20;
+	} else {
+		switch (elems.sec_chan_offs->sec_chan_offs) {
+		case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
+			chan_type = NL80211_CHAN_HT40PLUS;
+			break;
+		case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
+			chan_type = NL80211_CHAN_HT40MINUS;
+			break;
+		default:
+			chan_type = NL80211_CHAN_HT20;
+			break;
+		}
+	}
+
+	cfg80211_chandef_create(&chandef, chan, chan_type);
+
+	/* we will be active on the TDLS link */
+	if (!cfg80211_reg_can_beacon_relax(sdata->local->hw.wiphy, &chandef,
+					   sdata->wdev.iftype)) {
+		tdls_dbg(sdata, "TDLS chan switch to forbidden channel\n");
+		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)) {
@@ -1647,27 +1782,15 @@ ieee80211_process_tdls_channel_switch_req(struct ieee80211_sub_if_data *sdata,
 		goto out;
 	}
 
-	if (!sta->sta.ht_cap.ht_supported) {
+	/* peer should have known better */
-		chan_type = NL80211_CHAN_NO_HT;
+	if (!sta->sta.ht_cap.ht_supported && elems.sec_chan_offs &&
-	} else if (!elems.sec_chan_offs) {
+	    elems.sec_chan_offs->sec_chan_offs) {
-		chan_type = NL80211_CHAN_HT20;
+		tdls_dbg(sdata, "TDLS chan switch - wide chan unsupported\n");
-	} else {
+		ret = -ENOTSUPP;
-		switch (elems.sec_chan_offs->sec_chan_offs) {
+		goto out;
-		case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
-			chan_type = NL80211_CHAN_HT40PLUS;
-			break;
-		case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
-			chan_type = NL80211_CHAN_HT40MINUS;
-			break;
-		default:
-			chan_type = NL80211_CHAN_HT20;
-			break;
-		}
 	}
 
-	cfg80211_chandef_create(&chandef, chan, chan_type);
 	params.chandef = &chandef;
-
 	params.switch_time = le16_to_cpu(elems.ch_sw_timing->switch_time);
 	params.switch_timeout = le16_to_cpu(elems.ch_sw_timing->switch_timeout);
 
@@ -1691,12 +1814,15 @@ out:
 	return ret;
 }
 
-void ieee80211_process_tdls_channel_switch(struct ieee80211_sub_if_data *sdata,
+static void
-					   struct sk_buff *skb)
+ieee80211_process_tdls_channel_switch(struct ieee80211_sub_if_data *sdata,
+				      struct sk_buff *skb)
 {
 	struct ieee80211_tdls_data *tf = (void *)skb->data;
 	struct wiphy *wiphy = sdata->local->hw.wiphy;
 
+	ASSERT_RTNL();
+
 	/* make sure the driver supports it */
 	if (!(wiphy->features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
 		return;
@@ -1720,3 +1846,47 @@ void ieee80211_process_tdls_channel_switch(struct ieee80211_sub_if_data *sdata,
 		return;
 	}
 }
+
+void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata)
+{
+	struct sta_info *sta;
+	u16 reason = WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED;
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
+		if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
+		    !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
+			continue;
+
+		ieee80211_tdls_oper_request(&sdata->vif, sta->sta.addr,
+					    NL80211_TDLS_TEARDOWN, reason,
+					    GFP_ATOMIC);
+	}
+	rcu_read_unlock();
+}
+
+void ieee80211_tdls_chsw_work(struct work_struct *wk)
+{
+	struct ieee80211_local *local =
+		container_of(wk, struct ieee80211_local, tdls_chsw_work);
+	struct ieee80211_sub_if_data *sdata;
+	struct sk_buff *skb;
+	struct ieee80211_tdls_data *tf;
+
+	rtnl_lock();
+	while ((skb = skb_dequeue(&local->skb_queue_tdls_chsw))) {
+		tf = (struct ieee80211_tdls_data *)skb->data;
+		list_for_each_entry(sdata, &local->interfaces, list) {
+			if (!ieee80211_sdata_running(sdata) ||
+			    sdata->vif.type != NL80211_IFTYPE_STATION ||
+			    !ether_addr_equal(tf->da, sdata->vif.addr))
+				continue;
+
+			ieee80211_process_tdls_channel_switch(sdata, skb);
+			break;
+		}
+
+		kfree_skb(skb);
+	}
+	rtnl_unlock();
+}

net/mac80211/tx.c

@@ -311,9 +311,6 @@ ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx)
 	if (tx->sdata->vif.type == NL80211_IFTYPE_WDS)
 		return TX_CONTINUE;
 
-	if (tx->sdata->vif.type == NL80211_IFTYPE_MESH_POINT)
-		return TX_CONTINUE;
-
 	if (tx->flags & IEEE80211_TX_PS_BUFFERED)
 		return TX_CONTINUE;
 
@@ -610,7 +607,6 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx)
 	if (tx->key) {
 		bool skip_hw = false;
 
-		tx->key->tx_rx_count++;
 		/* TODO: add threshold stuff again */
 
 		switch (tx->key->conf.cipher) {
@@ -690,7 +686,8 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
 
 	txrc.bss = (tx->sdata->vif.type == NL80211_IFTYPE_AP ||
 		    tx->sdata->vif.type == NL80211_IFTYPE_MESH_POINT ||
-		    tx->sdata->vif.type == NL80211_IFTYPE_ADHOC);
+		    tx->sdata->vif.type == NL80211_IFTYPE_ADHOC ||
+		    tx->sdata->vif.type == NL80211_IFTYPE_OCB);
 
 	/* set up RTS protection if desired */
 	if (len > tx->local->hw.wiphy->rts_threshold) {
@@ -2777,7 +2774,11 @@ static bool ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
 		sdata->sequence_number += 0x10;
 	}
 
-	sta->tx_msdu[tid]++;
+	if (skb_shinfo(skb)->gso_size)
+		sta->tx_msdu[tid] +=
+			DIV_ROUND_UP(skb->len, skb_shinfo(skb)->gso_size);
+	else
+		sta->tx_msdu[tid]++;
 
 	info->hw_queue = sdata->vif.hw_queue[skb_get_queue_mapping(skb)];
 
@@ -3213,6 +3214,16 @@ static void ieee80211_set_csa(struct ieee80211_sub_if_data *sdata,
 	rcu_read_unlock();
 }
 
+static u8 __ieee80211_csa_update_counter(struct beacon_data *beacon)
+{
+	beacon->csa_current_counter--;
+
+	/* the counter should never reach 0 */
+	WARN_ON_ONCE(!beacon->csa_current_counter);
+
+	return beacon->csa_current_counter;
+}
+
 u8 ieee80211_csa_update_counter(struct ieee80211_vif *vif)
 {
 	struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
@@ -3231,11 +3242,7 @@ u8 ieee80211_csa_update_counter(struct ieee80211_vif *vif)
 	if (!beacon)
 		goto unlock;
 
-	beacon->csa_current_counter--;
+	count = __ieee80211_csa_update_counter(beacon);
-
-	/* the counter should never reach 0 */
-	WARN_ON_ONCE(!beacon->csa_current_counter);
-	count = beacon->csa_current_counter;
 
 unlock:
 	rcu_read_unlock();
@@ -3335,7 +3342,7 @@ __ieee80211_beacon_get(struct ieee80211_hw *hw,
 		if (beacon) {
 			if (beacon->csa_counter_offsets[0]) {
 				if (!is_template)
-					ieee80211_csa_update_counter(vif);
+					__ieee80211_csa_update_counter(beacon);
 
 				ieee80211_set_csa(sdata, beacon);
 			}
@@ -3381,7 +3388,7 @@ __ieee80211_beacon_get(struct ieee80211_hw *hw,
 
 		if (beacon->csa_counter_offsets[0]) {
 			if (!is_template)
-				ieee80211_csa_update_counter(vif);
+				__ieee80211_csa_update_counter(beacon);
 
 			ieee80211_set_csa(sdata, beacon);
 		}
@@ -3411,7 +3418,7 @@ __ieee80211_beacon_get(struct ieee80211_hw *hw,
 				 * for now we leave it consistent with overall
 				 * mac80211's behavior.
 				 */
-				ieee80211_csa_update_counter(vif);
+				__ieee80211_csa_update_counter(beacon);
 
 			ieee80211_set_csa(sdata, beacon);
 		}

net/mac80211/util.c

@@ -47,55 +47,6 @@ struct ieee80211_hw *wiphy_to_ieee80211_hw(struct wiphy *wiphy)
 }
 EXPORT_SYMBOL(wiphy_to_ieee80211_hw);
 
-u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
-			enum nl80211_iftype type)
-{
-	__le16 fc = hdr->frame_control;
-
-	 /* drop ACK/CTS frames and incorrect hdr len (ctrl) */
-	if (len < 16)
-		return NULL;
-
-	if (ieee80211_is_data(fc)) {
-		if (len < 24) /* drop incorrect hdr len (data) */
-			return NULL;
-
-		if (ieee80211_has_a4(fc))
-			return NULL;
-		if (ieee80211_has_tods(fc))
-			return hdr->addr1;
-		if (ieee80211_has_fromds(fc))
-			return hdr->addr2;
-
-		return hdr->addr3;
-	}
-
-	if (ieee80211_is_mgmt(fc)) {
-		if (len < 24) /* drop incorrect hdr len (mgmt) */
-			return NULL;
-		return hdr->addr3;
-	}
-
-	if (ieee80211_is_ctl(fc)) {
-		if (ieee80211_is_pspoll(fc))
-			return hdr->addr1;
-
-		if (ieee80211_is_back_req(fc)) {
-			switch (type) {
-			case NL80211_IFTYPE_STATION:
-				return hdr->addr2;
-			case NL80211_IFTYPE_AP:
-			case NL80211_IFTYPE_AP_VLAN:
-				return hdr->addr1;
-			default:
-				break; /* fall through to the return */
-			}
-		}
-	}
-
-	return NULL;
-}
-
 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx)
 {
 	struct sk_buff *skb;
@@ -752,7 +703,12 @@ EXPORT_SYMBOL_GPL(wdev_to_ieee80211_vif);
 
 struct wireless_dev *ieee80211_vif_to_wdev(struct ieee80211_vif *vif)
 {
-	struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+	struct ieee80211_sub_if_data *sdata;
+
+	if (!vif)
+		return NULL;
+
+	sdata = vif_to_sdata(vif);
 
 	if (!ieee80211_sdata_running(sdata) ||
 	    !(sdata->flags & IEEE80211_SDATA_IN_DRIVER))
@@ -1709,6 +1665,7 @@ static void ieee80211_handle_reconfig_failure(struct ieee80211_local *local)
 	local->resuming = false;
 	local->suspended = false;
 	local->started = false;
+	local->in_reconfig = false;
 
 	/* scheduled scan clearly can't be running any more, but tell
 	 * cfg80211 and clear local state
@@ -1759,16 +1716,24 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 	struct ieee80211_sub_if_data *sched_scan_sdata;
 	struct cfg80211_sched_scan_request *sched_scan_req;
 	bool sched_scan_stopped = false;
+	bool suspended = local->suspended;
 
 	/* nothing to do if HW shouldn't run */
 	if (!local->open_count)
 		goto wake_up;
 
 #ifdef CONFIG_PM
-	if (local->suspended)
+	if (suspended)
 		local->resuming = true;
 
 	if (local->wowlan) {
+		/*
+		 * In the wowlan case, both mac80211 and the device
+		 * are functional when the resume op is called, so
+		 * clear local->suspended so the device could operate
+		 * normally (e.g. pass rx frames).
+		 */
+		local->suspended = false;
 		res = drv_resume(local);
 		local->wowlan = false;
 		if (res < 0) {
@@ -1781,8 +1746,10 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 		/*
 		 * res is 1, which means the driver requested
 		 * to go through a regular reset on wakeup.
+		 * restore local->suspended in this case.
 		 */
 		reconfig_due_to_wowlan = true;
+		local->suspended = true;
 	}
 #endif
 
@@ -1794,7 +1761,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 	 */
 	res = drv_start(local);
 	if (res) {
-		if (local->suspended)
+		if (suspended)
 			WARN(1, "Hardware became unavailable upon resume. This could be a software issue prior to suspend or a hardware issue.\n");
 		else
 			WARN(1, "Hardware became unavailable during restart.\n");
@@ -2088,10 +2055,10 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 	 * If this is for hw restart things are still running.
 	 * We may want to change that later, however.
 	 */
-	if (local->open_count && (!local->suspended || reconfig_due_to_wowlan))
+	if (local->open_count && (!suspended || reconfig_due_to_wowlan))
 		drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_RESTART);
 
-	if (!local->suspended)
+	if (!suspended)
 		return 0;
 
 #ifdef CONFIG_PM

net/mac80211/vht.c

@@ -308,11 +308,15 @@ enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta)
 {
 	struct ieee80211_sub_if_data *sdata = sta->sdata;
 	enum ieee80211_sta_rx_bandwidth bw;
+	enum nl80211_chan_width bss_width = sdata->vif.bss_conf.chandef.width;
 
-	bw = ieee80211_chan_width_to_rx_bw(sdata->vif.bss_conf.chandef.width);
+	bw = ieee80211_sta_cap_rx_bw(sta);
-	bw = min(bw, ieee80211_sta_cap_rx_bw(sta));
 	bw = min(bw, sta->cur_max_bandwidth);
 
+	/* do not cap the BW of TDLS WIDER_BW peers by the bss */
+	if (!test_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW))
+		bw = min(bw, ieee80211_chan_width_to_rx_bw(bss_width));
+
 	return bw;
 }
 
@@ -422,3 +426,29 @@ void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
 	if (changed > 0)
 		rate_control_rate_update(local, sband, sta, changed);
 }
+
+void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
+				     u16 vht_mask[NL80211_VHT_NSS_MAX])
+{
+	int i;
+	u16 mask, cap = le16_to_cpu(vht_cap);
+
+	for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
+		mask = (cap >> i * 2) & IEEE80211_VHT_MCS_NOT_SUPPORTED;
+		switch (mask) {
+		case IEEE80211_VHT_MCS_SUPPORT_0_7:
+			vht_mask[i] = 0x00FF;
+			break;
+		case IEEE80211_VHT_MCS_SUPPORT_0_8:
+			vht_mask[i] = 0x01FF;
+			break;
+		case IEEE80211_VHT_MCS_SUPPORT_0_9:
+			vht_mask[i] = 0x03FF;
+			break;
+		case IEEE80211_VHT_MCS_NOT_SUPPORTED:
+		default:
+			vht_mask[i] = 0;
+			break;
+		}
+	}
+}

net/mac80211/wpa.c

@@ -516,30 +516,33 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx,
 			return RX_DROP_UNUSABLE;
 	}
 
-	ccmp_hdr2pn(pn, skb->data + hdrlen);
+	if (!(status->flag & RX_FLAG_PN_VALIDATED)) {
+		ccmp_hdr2pn(pn, skb->data + hdrlen);
 
-	queue = rx->security_idx;
+		queue = rx->security_idx;
 
-	if (memcmp(pn, key->u.ccmp.rx_pn[queue], IEEE80211_CCMP_PN_LEN) <= 0) {
+		if (memcmp(pn, key->u.ccmp.rx_pn[queue],
-		key->u.ccmp.replays++;
+			   IEEE80211_CCMP_PN_LEN) <= 0) {
-		return RX_DROP_UNUSABLE;
+			key->u.ccmp.replays++;
-	}
-
-	if (!(status->flag & RX_FLAG_DECRYPTED)) {
-		u8 aad[2 * AES_BLOCK_SIZE];
-		u8 b_0[AES_BLOCK_SIZE];
-		/* hardware didn't decrypt/verify MIC */
-		ccmp_special_blocks(skb, pn, b_0, aad);
-
-		if (ieee80211_aes_ccm_decrypt(
-			    key->u.ccmp.tfm, b_0, aad,
-			    skb->data + hdrlen + IEEE80211_CCMP_HDR_LEN,
-			    data_len,
-			    skb->data + skb->len - mic_len, mic_len))
 			return RX_DROP_UNUSABLE;
-	}
+		}
 
-	memcpy(key->u.ccmp.rx_pn[queue], pn, IEEE80211_CCMP_PN_LEN);
+		if (!(status->flag & RX_FLAG_DECRYPTED)) {
+			u8 aad[2 * AES_BLOCK_SIZE];
+			u8 b_0[AES_BLOCK_SIZE];
+			/* hardware didn't decrypt/verify MIC */
+			ccmp_special_blocks(skb, pn, b_0, aad);
+
+			if (ieee80211_aes_ccm_decrypt(
+				    key->u.ccmp.tfm, b_0, aad,
+				    skb->data + hdrlen + IEEE80211_CCMP_HDR_LEN,
+				    data_len,
+				    skb->data + skb->len - mic_len, mic_len))
+				return RX_DROP_UNUSABLE;
+		}
+
+		memcpy(key->u.ccmp.rx_pn[queue], pn, IEEE80211_CCMP_PN_LEN);
+	}
 
 	/* Remove CCMP header and MIC */
 	if (pskb_trim(skb, skb->len - mic_len))
@@ -739,30 +742,34 @@ ieee80211_crypto_gcmp_decrypt(struct ieee80211_rx_data *rx)
 			return RX_DROP_UNUSABLE;
 	}
 
-	gcmp_hdr2pn(pn, skb->data + hdrlen);
+	if (!(status->flag & RX_FLAG_PN_VALIDATED)) {
+		gcmp_hdr2pn(pn, skb->data + hdrlen);
 
-	queue = rx->security_idx;
+		queue = rx->security_idx;
 
-	if (memcmp(pn, key->u.gcmp.rx_pn[queue], IEEE80211_GCMP_PN_LEN) <= 0) {
+		if (memcmp(pn, key->u.gcmp.rx_pn[queue],
-		key->u.gcmp.replays++;
+			   IEEE80211_GCMP_PN_LEN) <= 0) {
-		return RX_DROP_UNUSABLE;
+			key->u.gcmp.replays++;
-	}
-
-	if (!(status->flag & RX_FLAG_DECRYPTED)) {
-		u8 aad[2 * AES_BLOCK_SIZE];
-		u8 j_0[AES_BLOCK_SIZE];
-		/* hardware didn't decrypt/verify MIC */
-		gcmp_special_blocks(skb, pn, j_0, aad);
-
-		if (ieee80211_aes_gcm_decrypt(
-			    key->u.gcmp.tfm, j_0, aad,
-			    skb->data + hdrlen + IEEE80211_GCMP_HDR_LEN,
-			    data_len,
-			    skb->data + skb->len - IEEE80211_GCMP_MIC_LEN))
 			return RX_DROP_UNUSABLE;
-	}
+		}
 
-	memcpy(key->u.gcmp.rx_pn[queue], pn, IEEE80211_GCMP_PN_LEN);
+		if (!(status->flag & RX_FLAG_DECRYPTED)) {
+			u8 aad[2 * AES_BLOCK_SIZE];
+			u8 j_0[AES_BLOCK_SIZE];
+			/* hardware didn't decrypt/verify MIC */
+			gcmp_special_blocks(skb, pn, j_0, aad);
+
+			if (ieee80211_aes_gcm_decrypt(
+				    key->u.gcmp.tfm, j_0, aad,
+				    skb->data + hdrlen + IEEE80211_GCMP_HDR_LEN,
+				    data_len,
+				    skb->data + skb->len -
+				    IEEE80211_GCMP_MIC_LEN))
+				return RX_DROP_UNUSABLE;
+		}
+
+		memcpy(key->u.gcmp.rx_pn[queue], pn, IEEE80211_GCMP_PN_LEN);
+	}
 
 	/* Remove GCMP header and MIC */
 	if (pskb_trim(skb, skb->len - IEEE80211_GCMP_MIC_LEN))

net/rfkill/Kconfig

@@ -36,7 +36,8 @@ config RFKILL_REGULATOR
 
 config RFKILL_GPIO
 	tristate "GPIO RFKILL driver"
-	depends on RFKILL && GPIOLIB
+	depends on RFKILL
+	depends on GPIOLIB || COMPILE_TEST
 	default n
 	help
 	  If you say yes here you get support of a generic gpio RFKILL

net/wireless/core.c

@@ -407,6 +407,9 @@ use_default_name:
 	INIT_LIST_HEAD(&rdev->bss_list);
 	INIT_WORK(&rdev->scan_done_wk, __cfg80211_scan_done);
 	INIT_WORK(&rdev->sched_scan_results_wk, __cfg80211_sched_scan_results);
+	INIT_LIST_HEAD(&rdev->mlme_unreg);
+	spin_lock_init(&rdev->mlme_unreg_lock);
+	INIT_WORK(&rdev->mlme_unreg_wk, cfg80211_mlme_unreg_wk);
 	INIT_DELAYED_WORK(&rdev->dfs_update_channels_wk,
 			  cfg80211_dfs_channels_update_work);
 #ifdef CONFIG_CFG80211_WEXT
@@ -802,6 +805,7 @@ void wiphy_unregister(struct wiphy *wiphy)
 	cancel_delayed_work_sync(&rdev->dfs_update_channels_wk);
 	flush_work(&rdev->destroy_work);
 	flush_work(&rdev->sched_scan_stop_wk);
+	flush_work(&rdev->mlme_unreg_wk);
 
 #ifdef CONFIG_PM
 	if (rdev->wiphy.wowlan_config && rdev->ops->set_wakeup)
@@ -855,6 +859,7 @@ void cfg80211_unregister_wdev(struct wireless_dev *wdev)
 
 	switch (wdev->iftype) {
 	case NL80211_IFTYPE_P2P_DEVICE:
+		cfg80211_mlme_purge_registrations(wdev);
 		cfg80211_stop_p2p_device(rdev, wdev);
 		break;
 	default:

net/wireless/core.h

@@ -59,6 +59,10 @@ struct cfg80211_registered_device {
 	struct list_head beacon_registrations;
 	spinlock_t beacon_registrations_lock;
 
+	struct list_head mlme_unreg;
+	spinlock_t mlme_unreg_lock;
+	struct work_struct mlme_unreg_wk;
+
 	/* protected by RTNL only */
 	int num_running_ifaces;
 	int num_running_monitor_ifaces;
@@ -348,6 +352,7 @@ void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
 int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid,
 				u16 frame_type, const u8 *match_data,
 				int match_len);
+void cfg80211_mlme_unreg_wk(struct work_struct *wk);
 void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid);
 void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev);
 int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,

net/wireless/mlme.c

@@ -2,6 +2,7 @@
  * cfg80211 MLME SAP interface
  *
  * Copyright (c) 2009, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2015		Intel Deutschland GmbH
  */
 
 #include <linux/kernel.h>
@@ -389,6 +390,7 @@ void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
 
 struct cfg80211_mgmt_registration {
 	struct list_head list;
+	struct wireless_dev *wdev;
 
 	u32 nlportid;
 
@@ -399,6 +401,46 @@ struct cfg80211_mgmt_registration {
 	u8 match[];
 };
 
+static void
+cfg80211_process_mlme_unregistrations(struct cfg80211_registered_device *rdev)
+{
+	struct cfg80211_mgmt_registration *reg;
+
+	ASSERT_RTNL();
+
+	spin_lock_bh(&rdev->mlme_unreg_lock);
+	while ((reg = list_first_entry_or_null(&rdev->mlme_unreg,
+					       struct cfg80211_mgmt_registration,
+					       list))) {
+		list_del(&reg->list);
+		spin_unlock_bh(&rdev->mlme_unreg_lock);
+
+		if (rdev->ops->mgmt_frame_register) {
+			u16 frame_type = le16_to_cpu(reg->frame_type);
+
+			rdev_mgmt_frame_register(rdev, reg->wdev,
+						 frame_type, false);
+		}
+
+		kfree(reg);
+
+		spin_lock_bh(&rdev->mlme_unreg_lock);
+	}
+	spin_unlock_bh(&rdev->mlme_unreg_lock);
+}
+
+void cfg80211_mlme_unreg_wk(struct work_struct *wk)
+{
+	struct cfg80211_registered_device *rdev;
+
+	rdev = container_of(wk, struct cfg80211_registered_device,
+			    mlme_unreg_wk);
+
+	rtnl_lock();
+	cfg80211_process_mlme_unregistrations(rdev);
+	rtnl_unlock();
+}
+
 int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_portid,
 				u16 frame_type, const u8 *match_data,
 				int match_len)
@@ -449,11 +491,18 @@ int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_portid,
 	nreg->match_len = match_len;
 	nreg->nlportid = snd_portid;
 	nreg->frame_type = cpu_to_le16(frame_type);
+	nreg->wdev = wdev;
 	list_add(&nreg->list, &wdev->mgmt_registrations);
+	spin_unlock_bh(&wdev->mgmt_registrations_lock);
+
+	/* process all unregistrations to avoid driver confusion */
+	cfg80211_process_mlme_unregistrations(rdev);
 
 	if (rdev->ops->mgmt_frame_register)
 		rdev_mgmt_frame_register(rdev, wdev, frame_type, true);
 
+	return 0;
+
  out:
 	spin_unlock_bh(&wdev->mgmt_registrations_lock);
 
@@ -472,15 +521,12 @@ void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlportid)
 		if (reg->nlportid != nlportid)
 			continue;
 
-		if (rdev->ops->mgmt_frame_register) {
-			u16 frame_type = le16_to_cpu(reg->frame_type);
-
-			rdev_mgmt_frame_register(rdev, wdev,
-						 frame_type, false);
-		}
-
 		list_del(&reg->list);
-		kfree(reg);
+		spin_lock(&rdev->mlme_unreg_lock);
+		list_add_tail(&reg->list, &rdev->mlme_unreg);
+		spin_unlock(&rdev->mlme_unreg_lock);
+
+		schedule_work(&rdev->mlme_unreg_wk);
 	}
 
 	spin_unlock_bh(&wdev->mgmt_registrations_lock);
@@ -496,16 +542,15 @@ void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlportid)
 
 void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev)
 {
-	struct cfg80211_mgmt_registration *reg, *tmp;
+	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 
 	spin_lock_bh(&wdev->mgmt_registrations_lock);
-
+	spin_lock(&rdev->mlme_unreg_lock);
-	list_for_each_entry_safe(reg, tmp, &wdev->mgmt_registrations, list) {
+	list_splice_tail_init(&wdev->mgmt_registrations, &rdev->mlme_unreg);
-		list_del(&reg->list);
+	spin_unlock(&rdev->mlme_unreg_lock);
-		kfree(reg);
-	}
-
 	spin_unlock_bh(&wdev->mgmt_registrations_lock);
+
+	cfg80211_process_mlme_unregistrations(rdev);
 }
 
 int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,

net/wireless/nl80211.c

@@ -2321,6 +2321,7 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
 			rdev->wiphy.frag_threshold = old_frag_threshold;
 			rdev->wiphy.rts_threshold = old_rts_threshold;
 			rdev->wiphy.coverage_class = old_coverage_class;
+			return result;
 		}
 	}
 	return 0;
@@ -7390,7 +7391,8 @@ static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
 	int err;
 
 	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
-	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
+	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
+	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
 		return -EOPNOTSUPP;
 
 	if (!rdev->ops->set_mcast_rate)

net/wireless/rdev-ops.h

@@ -733,6 +733,8 @@ static inline void
 rdev_mgmt_frame_register(struct cfg80211_registered_device *rdev,
 			 struct wireless_dev *wdev, u16 frame_type, bool reg)
 {
+	might_sleep();
+
 	trace_rdev_mgmt_frame_register(&rdev->wiphy, wdev , frame_type, reg);
 	rdev->ops->mgmt_frame_register(&rdev->wiphy, wdev , frame_type, reg);
 	trace_rdev_return_void(&rdev->wiphy);

net/wireless/reg.c

@@ -1004,7 +1004,7 @@ static u32 map_regdom_flags(u32 rd_flags)
 
 static const struct ieee80211_reg_rule *
 freq_reg_info_regd(struct wiphy *wiphy, u32 center_freq,
-		   const struct ieee80211_regdomain *regd)
+		   const struct ieee80211_regdomain *regd, u32 bw)
 {
 	int i;
 	bool band_rule_found = false;
@@ -1028,7 +1028,7 @@ freq_reg_info_regd(struct wiphy *wiphy, u32 center_freq,
 		if (!band_rule_found)
 			band_rule_found = freq_in_rule_band(fr, center_freq);
 
-		bw_fits = reg_does_bw_fit(fr, center_freq, MHZ_TO_KHZ(20));
+		bw_fits = reg_does_bw_fit(fr, center_freq, bw);
 
 		if (band_rule_found && bw_fits)
 			return rr;
@@ -1040,14 +1040,26 @@ freq_reg_info_regd(struct wiphy *wiphy, u32 center_freq,
 	return ERR_PTR(-EINVAL);
 }
 
+const struct ieee80211_reg_rule *__freq_reg_info(struct wiphy *wiphy,
+						 u32 center_freq, u32 min_bw)
+{
+	const struct ieee80211_regdomain *regd = reg_get_regdomain(wiphy);
+	const struct ieee80211_reg_rule *reg_rule = NULL;
+	u32 bw;
+
+	for (bw = MHZ_TO_KHZ(20); bw >= min_bw; bw = bw / 2) {
+		reg_rule = freq_reg_info_regd(wiphy, center_freq, regd, bw);
+		if (!IS_ERR(reg_rule))
+			return reg_rule;
+	}
+
+	return reg_rule;
+}
+
 const struct ieee80211_reg_rule *freq_reg_info(struct wiphy *wiphy,
 					       u32 center_freq)
 {
-	const struct ieee80211_regdomain *regd;
+	return __freq_reg_info(wiphy, center_freq, MHZ_TO_KHZ(20));
-
-	regd = reg_get_regdomain(wiphy);
-
-	return freq_reg_info_regd(wiphy, center_freq, regd);
 }
 EXPORT_SYMBOL(freq_reg_info);
 
@@ -1176,8 +1188,20 @@ static void handle_channel(struct wiphy *wiphy,
 	if (reg_rule->flags & NL80211_RRF_AUTO_BW)
 		max_bandwidth_khz = reg_get_max_bandwidth(regd, reg_rule);
 
+	/* If we get a reg_rule we can assume that at least 5Mhz fit */
+	if (!reg_does_bw_fit(freq_range, MHZ_TO_KHZ(chan->center_freq),
+			     MHZ_TO_KHZ(10)))
+		bw_flags |= IEEE80211_CHAN_NO_10MHZ;
+	if (!reg_does_bw_fit(freq_range, MHZ_TO_KHZ(chan->center_freq),
+			     MHZ_TO_KHZ(20)))
+		bw_flags |= IEEE80211_CHAN_NO_20MHZ;
+
+	if (max_bandwidth_khz < MHZ_TO_KHZ(10))
+		bw_flags |= IEEE80211_CHAN_NO_10MHZ;
+	if (max_bandwidth_khz < MHZ_TO_KHZ(20))
+		bw_flags |= IEEE80211_CHAN_NO_20MHZ;
 	if (max_bandwidth_khz < MHZ_TO_KHZ(40))
-		bw_flags = IEEE80211_CHAN_NO_HT40;
+		bw_flags |= IEEE80211_CHAN_NO_HT40;
 	if (max_bandwidth_khz < MHZ_TO_KHZ(80))
 		bw_flags |= IEEE80211_CHAN_NO_80MHZ;
 	if (max_bandwidth_khz < MHZ_TO_KHZ(160))
@@ -1695,9 +1719,15 @@ static void handle_channel_custom(struct wiphy *wiphy,
 	const struct ieee80211_power_rule *power_rule = NULL;
 	const struct ieee80211_freq_range *freq_range = NULL;
 	u32 max_bandwidth_khz;
+	u32 bw;
 
-	reg_rule = freq_reg_info_regd(wiphy, MHZ_TO_KHZ(chan->center_freq),
+	for (bw = MHZ_TO_KHZ(20); bw >= MHZ_TO_KHZ(5); bw = bw / 2) {
-				      regd);
+		reg_rule = freq_reg_info_regd(wiphy,
+					      MHZ_TO_KHZ(chan->center_freq),
+					      regd, bw);
+		if (!IS_ERR(reg_rule))
+			break;
+	}
 
 	if (IS_ERR(reg_rule)) {
 		REG_DBG_PRINT("Disabling freq %d MHz as custom regd has no rule that fits it\n",
@@ -1721,8 +1751,20 @@ static void handle_channel_custom(struct wiphy *wiphy,
 	if (reg_rule->flags & NL80211_RRF_AUTO_BW)
 		max_bandwidth_khz = reg_get_max_bandwidth(regd, reg_rule);
 
+	/* If we get a reg_rule we can assume that at least 5Mhz fit */
+	if (!reg_does_bw_fit(freq_range, MHZ_TO_KHZ(chan->center_freq),
+			     MHZ_TO_KHZ(10)))
+		bw_flags |= IEEE80211_CHAN_NO_10MHZ;
+	if (!reg_does_bw_fit(freq_range, MHZ_TO_KHZ(chan->center_freq),
+			     MHZ_TO_KHZ(20)))
+		bw_flags |= IEEE80211_CHAN_NO_20MHZ;
+
+	if (max_bandwidth_khz < MHZ_TO_KHZ(10))
+		bw_flags |= IEEE80211_CHAN_NO_10MHZ;
+	if (max_bandwidth_khz < MHZ_TO_KHZ(20))
+		bw_flags |= IEEE80211_CHAN_NO_20MHZ;
 	if (max_bandwidth_khz < MHZ_TO_KHZ(40))
-		bw_flags = IEEE80211_CHAN_NO_HT40;
+		bw_flags |= IEEE80211_CHAN_NO_HT40;
 	if (max_bandwidth_khz < MHZ_TO_KHZ(80))
 		bw_flags |= IEEE80211_CHAN_NO_80MHZ;
 	if (max_bandwidth_khz < MHZ_TO_KHZ(160))
@@ -2079,10 +2121,7 @@ static void reg_process_hint(struct regulatory_request *reg_request)
 		reg_process_hint_core(reg_request);
 		return;
 	case NL80211_REGDOM_SET_BY_USER:
-		treatment = reg_process_hint_user(reg_request);
+		reg_process_hint_user(reg_request);
-		if (treatment == REG_REQ_IGNORE ||
-		    treatment == REG_REQ_ALREADY_SET)
-			return;
 		return;
 	case NL80211_REGDOM_SET_BY_DRIVER:
 		if (!wiphy)
@@ -2099,7 +2138,9 @@ static void reg_process_hint(struct regulatory_request *reg_request)
 		goto out_free;
 	}
 
-	/* This is required so that the orig_* parameters are saved */
+	/* This is required so that the orig_* parameters are saved.
+	 * NOTE: treatment must be set for any case that reaches here!
+	 */
 	if (treatment == REG_REQ_ALREADY_SET && wiphy &&
 	    wiphy->regulatory_flags & REGULATORY_STRICT_REG) {
 		wiphy_update_regulatory(wiphy, reg_request->initiator);