Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless

Conflicts:
	drivers/net/wireless/ath/ath9k/recv.c
	drivers/net/wireless/mwifiex/pcie.c

23 files changed, 172 insertions, 113 deletions

diff --git a/drivers/net/wireless/ath/ath5k/phy.c b/drivers/net/wireless/ath/ath5k/phy.c
index d6bc7cb61bfb..1a2973b7acf2 100644
--- a/drivers/net/wireless/ath/ath5k/phy.c
+++ b/drivers/net/wireless/ath/ath5k/phy.c
@@ -110,7 +110,7 @@ ath5k_hw_radio_revision(struct ath5k_hw *ah, enum ieee80211_band band)
 		ath5k_hw_reg_write(ah, 0x00010000, AR5K_PHY(0x20));
 
 	if (ah->ah_version == AR5K_AR5210) {
-		srev = ath5k_hw_reg_read(ah, AR5K_PHY(256) >> 28) & 0xf;
+		srev = (ath5k_hw_reg_read(ah, AR5K_PHY(256)) >> 28) & 0xf;
 		ret = (u16)ath5k_hw_bitswap(srev, 4) + 1;
 	} else {
 		srev = (ath5k_hw_reg_read(ah, AR5K_PHY(0x100)) >> 24) & 0xff;
diff --git a/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h b/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h
index 1cc13569b17b..1b6b4d0cfa97 100644
--- a/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h
+++ b/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h
@@ -57,7 +57,7 @@ static const u32 ar9462_2p0_baseband_postamble[][5] = {
 	{0x00009e14, 0x37b95d5e, 0x37b9605e, 0x3236605e, 0x32365a5e},
 	{0x00009e18, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
 	{0x00009e1c, 0x0001cf9c, 0x0001cf9c, 0x00021f9c, 0x00021f9c},
-	{0x00009e20, 0x000003b5, 0x000003b5, 0x000003ce, 0x000003ce},
+	{0x00009e20, 0x000003a5, 0x000003a5, 0x000003a5, 0x000003a5},
 	{0x00009e2c, 0x0000001c, 0x0000001c, 0x00000021, 0x00000021},
 	{0x00009e3c, 0xcf946220, 0xcf946220, 0xcfd5c782, 0xcfd5c282},
 	{0x00009e44, 0x62321e27, 0x62321e27, 0xfe291e27, 0xfe291e27},
@@ -96,7 +96,7 @@ static const u32 ar9462_2p0_baseband_postamble[][5] = {
 	{0x0000ae04, 0x001c0000, 0x001c0000, 0x001c0000, 0x00100000},
 	{0x0000ae18, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
 	{0x0000ae1c, 0x0000019c, 0x0000019c, 0x0000019c, 0x0000019c},
-	{0x0000ae20, 0x000001b5, 0x000001b5, 0x000001ce, 0x000001ce},
+	{0x0000ae20, 0x000001a6, 0x000001a6, 0x000001aa, 0x000001aa},
 	{0x0000b284, 0x00000000, 0x00000000, 0x00000550, 0x00000550},
 };
 
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 5db01b4212c8..2509c2ff0828 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1533,7 +1533,7 @@ EXPORT_SYMBOL(ath9k_hw_check_nav);
 bool ath9k_hw_check_alive(struct ath_hw *ah)
 {
 	int count = 50;
-	u32 reg;
+	u32 reg, last_val;
 
 	if (AR_SREV_9300(ah))
 		return !ath9k_hw_detect_mac_hang(ah);
@@ -1541,9 +1541,13 @@ bool ath9k_hw_check_alive(struct ath_hw *ah)
 	if (AR_SREV_9285_12_OR_LATER(ah))
 		return true;
 
+	last_val = REG_READ(ah, AR_OBS_BUS_1);
 	do {
 		reg = REG_READ(ah, AR_OBS_BUS_1);
+		if (reg != last_val)
+			return true;
 
+		last_val = reg;
 		if ((reg & 0x7E7FFFEF) == 0x00702400)
 			continue;
 
@@ -1555,6 +1559,8 @@ bool ath9k_hw_check_alive(struct ath_hw *ah)
 		default:
 			return true;
 		}
+
+		udelay(1);
 	} while (count-- > 0);
 
 	return false;
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index 076dae1e5ab7..6c9accdb52e4 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -732,11 +732,18 @@ static struct ath_rxbuf *ath_get_next_rx_buf(struct ath_softc *sc,
 			return NULL;
 
 		/*
-		 * mark descriptor as zero-length and set the 'more'
-		 * flag to ensure that both buffers get discarded
+		 * Re-check previous descriptor, in case it has been filled
+		 * in the mean time.
 		 */
-		rs->rs_datalen = 0;
-		rs->rs_more = true;
+		ret = ath9k_hw_rxprocdesc(ah, ds, rs);
+		if (ret == -EINPROGRESS) {
+			/*
+			 * mark descriptor as zero-length and set the 'more'
+			 * flag to ensure that both buffers get discarded
+			 */
+			rs->rs_datalen = 0;
+			rs->rs_more = true;
+		}
 	}
 
 	list_del(&bf->list);
@@ -787,32 +794,32 @@ static int ath9k_rx_skb_preprocess(struct ath_softc *sc,
 	struct ath_common *common = ath9k_hw_common(ah);
 	struct ieee80211_hdr *hdr;
 	bool discard_current = sc->rx.discard_next;
-	int ret = 0;
 
 	/*
 	 * Discard corrupt descriptors which are marked in
 	 * ath_get_next_rx_buf().
 	 */
-	sc->rx.discard_next = rx_stats->rs_more;
 	if (discard_current)
-		return -EINVAL;
+		goto corrupt;
+
+	sc->rx.discard_next = false;
 
 	/*
 	 * Discard zero-length packets.
 	 */
 	if (!rx_stats->rs_datalen) {
 		RX_STAT_INC(rx_len_err);
-		return -EINVAL;
+		goto corrupt;
 	}
 
-        /*
-         * rs_status follows rs_datalen so if rs_datalen is too large
-         * we can take a hint that hardware corrupted it, so ignore
-         * those frames.
-         */
+	/*
+	 * rs_status follows rs_datalen so if rs_datalen is too large
+	 * we can take a hint that hardware corrupted it, so ignore
+	 * those frames.
+	 */
 	if (rx_stats->rs_datalen > (common->rx_bufsize - ah->caps.rx_status_len)) {
 		RX_STAT_INC(rx_len_err);
-		return -EINVAL;
+		goto corrupt;
 	}
 
 	/* Only use status info from the last fragment */
@@ -826,10 +833,8 @@ static int ath9k_rx_skb_preprocess(struct ath_softc *sc,
 	 * This is different from the other corrupt descriptor
 	 * condition handled above.
 	 */
-	if (rx_stats->rs_status & ATH9K_RXERR_CORRUPT_DESC) {
-		ret = -EINVAL;
-		goto exit;
-	}
+	if (rx_stats->rs_status & ATH9K_RXERR_CORRUPT_DESC)
+		goto corrupt;
 
 	hdr = (struct ieee80211_hdr *) (skb->data + ah->caps.rx_status_len);
 
@@ -845,18 +850,15 @@ static int ath9k_rx_skb_preprocess(struct ath_softc *sc,
 		if (ath_process_fft(sc, hdr, rx_stats, rx_status->mactime))
 			RX_STAT_INC(rx_spectral);
 
-		ret = -EINVAL;
-		goto exit;
+		return -EINVAL;
 	}
 
 	/*
 	 * everything but the rate is checked here, the rate check is done
 	 * separately to avoid doing two lookups for a rate for each frame.
 	 */
-	if (!ath9k_cmn_rx_accept(common, hdr, rx_status, rx_stats, decrypt_error, sc->rx.rxfilter)) {
-		ret = -EINVAL;
-		goto exit;
-	}
+	if (!ath9k_cmn_rx_accept(common, hdr, rx_status, rx_stats, decrypt_error, sc->rx.rxfilter))
+		return -EINVAL;
 
 	if (ath_is_mybeacon(common, hdr)) {
 		RX_STAT_INC(rx_beacons);
@@ -866,10 +868,8 @@ static int ath9k_rx_skb_preprocess(struct ath_softc *sc,
 	/*
 	 * This shouldn't happen, but have a safety check anyway.
 	 */
-	if (WARN_ON(!ah->curchan)) {
-		ret = -EINVAL;
-		goto exit;
-	}
+	if (WARN_ON(!ah->curchan))
+		return -EINVAL;
 
 	if (ath9k_cmn_process_rate(common, hw, rx_stats, rx_status)) {
 		/*
@@ -879,8 +879,7 @@ static int ath9k_rx_skb_preprocess(struct ath_softc *sc,
 		ath_dbg(common, ANY, "unsupported hw bitrate detected 0x%02x using 1 Mbit\n",
 			rx_stats->rs_rate);
 		RX_STAT_INC(rx_rate_err);
-		ret =-EINVAL;
-		goto exit;
+		return -EINVAL;
 	}
 
 	ath9k_cmn_process_rssi(common, hw, rx_stats, rx_status);
@@ -896,9 +895,11 @@ static int ath9k_rx_skb_preprocess(struct ath_softc *sc,
 		sc->rx.num_pkts++;
 #endif
 
-exit:
-	sc->rx.discard_next = false;
-	return ret;
+	return 0;
+
+corrupt:
+	sc->rx.discard_next = rx_stats->rs_more;
+	return -EINVAL;
 }
 
 /*
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 306ea322c65d..fafacfed44ea 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -1445,14 +1445,16 @@ void ath_tx_aggr_sleep(struct ieee80211_sta *sta, struct ath_softc *sc,
 	for (tidno = 0, tid = &an->tid[tidno];
 	     tidno < IEEE80211_NUM_TIDS; tidno++, tid++) {
 
-		if (!tid->sched)
-			continue;
-
 		ac = tid->ac;
 		txq = ac->txq;
 
 		ath_txq_lock(sc, txq);
 
+		if (!tid->sched) {
+			ath_txq_unlock(sc, txq);
+			continue;
+		}
+
 		buffered = ath_tid_has_buffered(tid);
 
 		tid->sched = false;
@@ -2185,14 +2187,15 @@ int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
 		txq->stopped = true;
 	}
 
+	if (txctl->an)
+		tid = ath_get_skb_tid(sc, txctl->an, skb);
+
 	if (info->flags & IEEE80211_TX_CTL_PS_RESPONSE) {
 		ath_txq_unlock(sc, txq);
 		txq = sc->tx.uapsdq;
 		ath_txq_lock(sc, txq);
 	} else if (txctl->an &&
 		   ieee80211_is_data_present(hdr->frame_control)) {
-		tid = ath_get_skb_tid(sc, txctl->an, skb);
-
 		WARN_ON(tid->ac->txq != txctl->txq);
 
 		if (info->flags & IEEE80211_TX_CTL_CLEAR_PS_FILT)
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
index b5ded8a57cb0..5c2706e50775 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
@@ -482,7 +482,6 @@ struct brcmf_sdio {
 
 	u8 tx_hdrlen;		/* sdio bus header length for tx packet */
 	bool txglom;		/* host tx glomming enable flag */
-	struct sk_buff *txglom_sgpad;	/* scatter-gather padding buffer */
 	u16 head_align;		/* buffer pointer alignment */
 	u16 sgentry_align;	/* scatter-gather buffer alignment */
 };
@@ -2113,9 +2112,8 @@ static int brcmf_sdio_txpkt_prep_sg(struct brcmf_sdio *bus,
 	if (lastfrm && chain_pad)
 		tail_pad += blksize - chain_pad;
 	if (skb_tailroom(pkt) < tail_pad && pkt->len > blksize) {
-		pkt_pad = bus->txglom_sgpad;
-		if (pkt_pad == NULL)
-			  brcmu_pkt_buf_get_skb(tail_pad + tail_chop);
+		pkt_pad = brcmu_pkt_buf_get_skb(tail_pad + tail_chop +
+						bus->head_align);
 		if (pkt_pad == NULL)
 			return -ENOMEM;
 		ret = brcmf_sdio_txpkt_hdalign(bus, pkt_pad);
@@ -2126,6 +2124,7 @@ static int brcmf_sdio_txpkt_prep_sg(struct brcmf_sdio *bus,
 		       tail_chop);
 		*(u16 *)(pkt_pad->cb) = ALIGN_SKB_FLAG + tail_chop;
 		skb_trim(pkt, pkt->len - tail_chop);
+		skb_trim(pkt_pad, tail_pad + tail_chop);
 		__skb_queue_after(pktq, pkt, pkt_pad);
 	} else {
 		ntail = pkt->data_len + tail_pad -
@@ -2180,7 +2179,7 @@ brcmf_sdio_txpkt_prep(struct brcmf_sdio *bus, struct sk_buff_head *pktq,
 			return ret;
 		head_pad = (u16)ret;
 		if (head_pad)
-			memset(pkt_next->data, 0, head_pad + bus->tx_hdrlen);
+			memset(pkt_next->data + bus->tx_hdrlen, 0, head_pad);
 
 		total_len += pkt_next->len;
 
@@ -3441,10 +3440,6 @@ static int brcmf_sdio_bus_preinit(struct device *dev)
 		bus->txglom = false;
 		value = 1;
 		pad_size = bus->sdiodev->func[2]->cur_blksize << 1;
-		bus->txglom_sgpad = brcmu_pkt_buf_get_skb(pad_size);
-		if (!bus->txglom_sgpad)
-			brcmf_err("allocating txglom padding skb failed, reduced performance\n");
-
 		err = brcmf_iovar_data_set(bus->sdiodev->dev, "bus:rxglom",
 					   &value, sizeof(u32));
 		if (err < 0) {
@@ -4167,7 +4162,6 @@ void brcmf_sdio_remove(struct brcmf_sdio *bus)
 			brcmf_chip_detach(bus->ci);
 		}
 
-		brcmu_pkt_buf_free_skb(bus->txglom_sgpad);
 		kfree(bus->rxbuf);
 		kfree(bus->hdrbuf);
 		kfree(bus);
diff --git a/drivers/net/wireless/hostap/hostap_ap.c b/drivers/net/wireless/hostap/hostap_ap.c
index d36e252d2ccb..596525528f50 100644
--- a/drivers/net/wireless/hostap/hostap_ap.c
+++ b/drivers/net/wireless/hostap/hostap_ap.c
@@ -147,7 +147,7 @@ static void ap_free_sta(struct ap_data *ap, struct sta_info *sta)
 
 	if (!sta->ap && sta->u.sta.challenge)
 		kfree(sta->u.sta.challenge);
-	del_timer(&sta->timer);
+	del_timer_sync(&sta->timer);
 #endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */
 
 	kfree(sta);
diff --git a/drivers/net/wireless/hostap/hostap_proc.c b/drivers/net/wireless/hostap/hostap_proc.c
index aa7ad3a7a69b..4e5c0f8c9496 100644
--- a/drivers/net/wireless/hostap/hostap_proc.c
+++ b/drivers/net/wireless/hostap/hostap_proc.c
@@ -496,7 +496,7 @@ void hostap_init_proc(local_info_t *local)
 
 void hostap_remove_proc(local_info_t *local)
 {
-	remove_proc_subtree(local->ddev->name, hostap_proc);
+	proc_remove(local->proc);
 }
 
 
diff --git a/drivers/net/wireless/iwlwifi/dvm/mac80211.c b/drivers/net/wireless/iwlwifi/dvm/mac80211.c
index f57608943ca6..dd55c9cf7ba8 100644
--- a/drivers/net/wireless/iwlwifi/dvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/dvm/mac80211.c
@@ -696,6 +696,24 @@ static int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 	return ret;
 }
 
+static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
+{
+	if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
+		return false;
+	return true;
+}
+
+static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
+{
+	if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
+		return false;
+	if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
+		return true;
+
+	/* disabled by default */
+	return false;
+}
+
 static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw,
 				   struct ieee80211_vif *vif,
 				   enum ieee80211_ampdu_mlme_action action,
@@ -717,7 +735,7 @@ static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw,
 
 	switch (action) {
 	case IEEE80211_AMPDU_RX_START:
-		if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
+		if (!iwl_enable_rx_ampdu(priv->cfg))
 			break;
 		IWL_DEBUG_HT(priv, "start Rx\n");
 		ret = iwl_sta_rx_agg_start(priv, sta, tid, *ssn);
@@ -729,7 +747,7 @@ static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw,
 	case IEEE80211_AMPDU_TX_START:
 		if (!priv->trans->ops->txq_enable)
 			break;
-		if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
+		if (!iwl_enable_tx_ampdu(priv->cfg))
 			break;
 		IWL_DEBUG_HT(priv, "start Tx\n");
 		ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn);
diff --git a/drivers/net/wireless/iwlwifi/dvm/sta.c b/drivers/net/wireless/iwlwifi/dvm/sta.c
index c0d070c5df5e..9cdd91cdf661 100644
--- a/drivers/net/wireless/iwlwifi/dvm/sta.c
+++ b/drivers/net/wireless/iwlwifi/dvm/sta.c
@@ -590,6 +590,7 @@ void iwl_deactivate_station(struct iwl_priv *priv, const u8 sta_id,
 			sizeof(priv->tid_data[sta_id][tid]));
 
 	priv->stations[sta_id].used &= ~IWL_STA_DRIVER_ACTIVE;
+	priv->stations[sta_id].used &= ~IWL_STA_UCODE_INPROGRESS;
 
 	priv->num_stations--;
 
diff --git a/drivers/net/wireless/iwlwifi/dvm/tx.c b/drivers/net/wireless/iwlwifi/dvm/tx.c
index a6839dfcb82d..398dd096674c 100644
--- a/drivers/net/wireless/iwlwifi/dvm/tx.c
+++ b/drivers/net/wireless/iwlwifi/dvm/tx.c
@@ -1291,8 +1291,6 @@ int iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv,
 	struct iwl_compressed_ba_resp *ba_resp = (void *)pkt->data;
 	struct iwl_ht_agg *agg;
 	struct sk_buff_head reclaimed_skbs;
-	struct ieee80211_tx_info *info;
-	struct ieee80211_hdr *hdr;
 	struct sk_buff *skb;
 	int sta_id;
 	int tid;
@@ -1379,22 +1377,28 @@ int iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv,
 	freed = 0;
 
 	skb_queue_walk(&reclaimed_skbs, skb) {
-		hdr = (struct ieee80211_hdr *)skb->data;
+		struct ieee80211_hdr *hdr = (void *)skb->data;
+		struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 
 		if (ieee80211_is_data_qos(hdr->frame_control))
 			freed++;
 		else
 			WARN_ON_ONCE(1);
 
-		info = IEEE80211_SKB_CB(skb);
 		iwl_trans_free_tx_cmd(priv->trans, info->driver_data[1]);
 
+		memset(&info->status, 0, sizeof(info->status));
+		/* Packet was transmitted successfully, failures come as single
+		 * frames because before failing a frame the firmware transmits
+		 * it without aggregation at least once.
+		 */
+		info->flags |= IEEE80211_TX_STAT_ACK;
+
 		if (freed == 1) {
 			/* this is the first skb we deliver in this batch */
 			/* put the rate scaling data there */
 			info = IEEE80211_SKB_CB(skb);
 			memset(&info->status, 0, sizeof(info->status));
-			info->flags |= IEEE80211_TX_STAT_ACK;
 			info->flags |= IEEE80211_TX_STAT_AMPDU;
 			info->status.ampdu_ack_len = ba_resp->txed_2_done;
 			info->status.ampdu_len = ba_resp->txed;
diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.c b/drivers/net/wireless/iwlwifi/iwl-drv.c
index 847a0eded40a..0a3e841b44a9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/iwlwifi/iwl-drv.c
@@ -1337,7 +1337,7 @@ module_param_named(swcrypto, iwlwifi_mod_params.sw_crypto, int, S_IRUGO);
 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, S_IRUGO);
 MODULE_PARM_DESC(11n_disable,
-	"disable 11n functionality, bitmap: 1: full, 2: agg TX, 4: agg RX");
+	"disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
 module_param_named(amsdu_size_8K, iwlwifi_mod_params.amsdu_size_8K,
 		   int, S_IRUGO);
 MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size (default 0)");
diff --git a/drivers/net/wireless/iwlwifi/iwl-modparams.h b/drivers/net/wireless/iwlwifi/iwl-modparams.h
index 1d100f24804c..d994317db85b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-modparams.h
+++ b/drivers/net/wireless/iwlwifi/iwl-modparams.h
@@ -79,9 +79,12 @@ enum iwl_power_level {
 	IWL_POWER_NUM
 };
 
-#define IWL_DISABLE_HT_ALL	BIT(0)
-#define IWL_DISABLE_HT_TXAGG	BIT(1)
-#define IWL_DISABLE_HT_RXAGG	BIT(2)
+enum iwl_disable_11n {
+	IWL_DISABLE_HT_ALL	 = BIT(0),
+	IWL_DISABLE_HT_TXAGG	 = BIT(1),
+	IWL_DISABLE_HT_RXAGG	 = BIT(2),
+	IWL_ENABLE_HT_TXAGG	 = BIT(3),
+};
 
 /**
  * struct iwl_mod_params
@@ -90,7 +93,7 @@ enum iwl_power_level {
  *
  * @sw_crypto: using hardware encryption, default = 0
  * @disable_11n: disable 11n capabilities, default = 0,
- *	use IWL_DISABLE_HT_* constants
+ *	use IWL_[DIS,EN]ABLE_HT_* constants
  * @amsdu_size_8K: enable 8K amsdu size, default = 0
  * @restart_fw: restart firmware, default = 1
  * @wd_disable: disable stuck queue check, default = 1
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index d74cc43ca593..c2ab6a3318cb 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -463,6 +463,24 @@ static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
 	ieee80211_free_txskb(hw, skb);
 }
 
+static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
+{
+	if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
+		return false;
+	return true;
+}
+
+static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
+{
+	if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
+		return false;
+	if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
+		return true;
+
+	/* enabled by default */
+	return true;
+}
+
 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
 				    struct ieee80211_vif *vif,
 				    enum ieee80211_ampdu_mlme_action action,
@@ -482,7 +500,7 @@ static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
 
 	switch (action) {
 	case IEEE80211_AMPDU_RX_START:
-		if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) {
+		if (!iwl_enable_rx_ampdu(mvm->cfg)) {
 			ret = -EINVAL;
 			break;
 		}
@@ -492,7 +510,7 @@ static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
 		ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
 		break;
 	case IEEE80211_AMPDU_TX_START:
-		if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) {
+		if (!iwl_enable_tx_ampdu(mvm->cfg)) {
 			ret = -EINVAL;
 			break;
 		}
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 5fb51099f99d..302cf779c172 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -150,7 +150,7 @@ enum iwl_power_scheme {
 	IWL_POWER_SCHEME_LP
 };
 
-#define IWL_CONN_MAX_LISTEN_INTERVAL	70
+#define IWL_CONN_MAX_LISTEN_INTERVAL	10
 #define IWL_UAPSD_AC_INFO		(IEEE80211_WMM_IE_STA_QOSINFO_AC_VO |\
 					 IEEE80211_WMM_IE_STA_QOSINFO_AC_VI |\
 					 IEEE80211_WMM_IE_STA_QOSINFO_AC_BK |\
diff --git a/drivers/net/wireless/iwlwifi/mvm/tx.c b/drivers/net/wireless/iwlwifi/mvm/tx.c
index 6cdbf7b21714..0ba96654d2c3 100644
--- a/drivers/net/wireless/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/tx.c
@@ -845,16 +845,12 @@ int iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
 	struct iwl_mvm_ba_notif *ba_notif = (void *)pkt->data;
 	struct sk_buff_head reclaimed_skbs;
 	struct iwl_mvm_tid_data *tid_data;
-	struct ieee80211_tx_info *info;
 	struct ieee80211_sta *sta;
 	struct iwl_mvm_sta *mvmsta;
-	struct ieee80211_hdr *hdr;
 	struct sk_buff *skb;
 	int sta_id, tid, freed;
-
 	/* "flow" corresponds to Tx queue */
 	u16 scd_flow = le16_to_cpu(ba_notif->scd_flow);
-
 	/* "ssn" is start of block-ack Tx window, corresponds to index
 	 * (in Tx queue's circular buffer) of first TFD/frame in window */
 	u16 ba_resp_scd_ssn = le16_to_cpu(ba_notif->scd_ssn);
@@ -911,22 +907,26 @@ int iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
 	freed = 0;
 
 	skb_queue_walk(&reclaimed_skbs, skb) {
-		hdr = (struct ieee80211_hdr *)skb->data;
+		struct ieee80211_hdr *hdr = (void *)skb->data;
+		struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 
 		if (ieee80211_is_data_qos(hdr->frame_control))
 			freed++;
 		else
 			WARN_ON_ONCE(1);
 
-		info = IEEE80211_SKB_CB(skb);
 		iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
 
+		memset(&info->status, 0, sizeof(info->status));
+		/* Packet was transmitted successfully, failures come as single
+		 * frames because before failing a frame the firmware transmits
+		 * it without aggregation at least once.
+		 */
+		info->flags |= IEEE80211_TX_STAT_ACK;
+
 		if (freed == 1) {
 			/* this is the first skb we deliver in this batch */
 			/* put the rate scaling data there */
-			info = IEEE80211_SKB_CB(skb);
-			memset(&info->status, 0, sizeof(info->status));
-			info->flags |= IEEE80211_TX_STAT_ACK;
 			info->flags |= IEEE80211_TX_STAT_AMPDU;
 			info->status.ampdu_ack_len = ba_notif->txed_2_done;
 			info->status.ampdu_len = ba_notif->txed;
diff --git a/drivers/net/wireless/libertas/cfg.c b/drivers/net/wireless/libertas/cfg.c
index 2d72a6b4b93e..54e344aed6e0 100644
--- a/drivers/net/wireless/libertas/cfg.c
+++ b/drivers/net/wireless/libertas/cfg.c
@@ -621,7 +621,7 @@ static int lbs_ret_scan(struct lbs_private *priv, unsigned long dummy,
 			id = *pos++;
 			elen = *pos++;
 			left -= 2;
-			if (elen > left || elen == 0) {
+			if (elen > left) {
 				lbs_deb_scan("scan response: invalid IE fmt\n");
 				goto done;
 			}
diff --git a/drivers/net/wireless/mwifiex/pcie.c b/drivers/net/wireless/mwifiex/pcie.c
index d2af2127b41a..9f1683b5f28f 100644
--- a/drivers/net/wireless/mwifiex/pcie.c
+++ b/drivers/net/wireless/mwifiex/pcie.c
@@ -1213,6 +1213,12 @@ static int mwifiex_pcie_process_recv_data(struct mwifiex_adapter *adapter)
 		rd_index = card->rxbd_rdptr & reg->rx_mask;
 		skb_data = card->rx_buf_list[rd_index];
 
+		/* If skb allocation was failed earlier for Rx packet,
+		 * rx_buf_list[rd_index] would have been left with a NULL.
+		 */
+		if (!skb_data)
+			return -ENOMEM;
+
 		mwifiex_unmap_pci_memory(adapter, skb_data, PCI_DMA_FROMDEVICE);
 		card->rx_buf_list[rd_index] = NULL;
 
@@ -1525,6 +1531,14 @@ static int mwifiex_pcie_process_cmd_complete(struct mwifiex_adapter *adapter)
 		if (adapter->ps_state == PS_STATE_SLEEP_CFM) {
 			mwifiex_process_sleep_confirm_resp(adapter, skb->data,
 							   skb->len);
+			mwifiex_pcie_enable_host_int(adapter);
+			if (mwifiex_write_reg(adapter,
+					      PCIE_CPU_INT_EVENT,
+					      CPU_INTR_SLEEP_CFM_DONE)) {
+				dev_warn(adapter->dev,
+					 "Write register failed\n");
+				return -1;
+			}
 			while (reg->sleep_cookie && (count++ < 10) &&
 			       mwifiex_pcie_ok_to_access_hw(adapter))
 				usleep_range(50, 60);
@@ -1971,23 +1985,9 @@ static void mwifiex_interrupt_status(struct mwifiex_adapter *adapter)
 		adapter->int_status |= pcie_ireg;
 		spin_unlock_irqrestore(&adapter->int_lock, flags);
 
-		if (pcie_ireg & HOST_INTR_CMD_DONE) {
-			if ((adapter->ps_state == PS_STATE_SLEEP_CFM) ||
-			    (adapter->ps_state == PS_STATE_SLEEP)) {
-				mwifiex_pcie_enable_host_int(adapter);
-				if (mwifiex_write_reg(adapter,
-						      PCIE_CPU_INT_EVENT,
-						      CPU_INTR_SLEEP_CFM_DONE)
-						      ) {
-					dev_warn(adapter->dev,
-						 "Write register failed\n");
-					return;
-
-				}
-			}
-		} else if (!adapter->pps_uapsd_mode &&
-			   adapter->ps_state == PS_STATE_SLEEP &&
-			   mwifiex_pcie_ok_to_access_hw(adapter)) {
+		if (!adapter->pps_uapsd_mode &&
+		    adapter->ps_state == PS_STATE_SLEEP &&
+		    mwifiex_pcie_ok_to_access_hw(adapter)) {
 				/* Potentially for PCIe we could get other
 				 * interrupts like shared. Don't change power
 				 * state until cookie is set */
diff --git a/drivers/net/wireless/mwifiex/usb.c b/drivers/net/wireless/mwifiex/usb.c
index 93d5d73c4800..ae30c390ebd3 100644
--- a/drivers/net/wireless/mwifiex/usb.c
+++ b/drivers/net/wireless/mwifiex/usb.c
@@ -22,8 +22,6 @@
 
 #define USB_VERSION	"1.0"
 
-static const char usbdriver_name[] = "usb8xxx";
-
 static struct mwifiex_if_ops usb_ops;
 static struct semaphore add_remove_card_sem;
 static struct usb_card_rec *usb_card;
@@ -527,13 +525,6 @@ static int mwifiex_usb_resume(struct usb_interface *intf)
 						   MWIFIEX_BSS_ROLE_ANY),
 				  MWIFIEX_ASYNC_CMD);
 
-#ifdef CONFIG_PM
-	/* Resume handler may be called due to remote wakeup,
-	 * force to exit suspend anyway
-	 */
-	usb_disable_autosuspend(card->udev);
-#endif /* CONFIG_PM */
-
 	return 0;
 }
 
@@ -567,13 +558,12 @@ static void mwifiex_usb_disconnect(struct usb_interface *intf)
 }
 
 static struct usb_driver mwifiex_usb_driver = {
-	.name = usbdriver_name,
+	.name = "mwifiex_usb",
 	.probe = mwifiex_usb_probe,
 	.disconnect = mwifiex_usb_disconnect,
 	.id_table = mwifiex_usb_table,
 	.suspend = mwifiex_usb_suspend,
 	.resume = mwifiex_usb_resume,
-	.supports_autosuspend = 1,
 };
 
 static int mwifiex_usb_tx_init(struct mwifiex_adapter *adapter)
diff --git a/drivers/net/wireless/mwifiex/wmm.c b/drivers/net/wireless/mwifiex/wmm.c
index e0ba0115e5ae..1c5f2b66f057 100644
--- a/drivers/net/wireless/mwifiex/wmm.c
+++ b/drivers/net/wireless/mwifiex/wmm.c
@@ -554,7 +554,8 @@ mwifiex_clean_txrx(struct mwifiex_private *priv)
 	mwifiex_wmm_delete_all_ralist(priv);
 	memcpy(tos_to_tid, ac_to_tid, sizeof(tos_to_tid));
 
-	if (priv->adapter->if_ops.clean_pcie_ring)
+	if (priv->adapter->if_ops.clean_pcie_ring &&
+	    !priv->adapter->surprise_removed)
 		priv->adapter->if_ops.clean_pcie_ring(priv->adapter);
 	spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, flags);
 
diff --git a/drivers/net/wireless/rtl818x/rtl8187/rtl8187.h b/drivers/net/wireless/rtl818x/rtl8187/rtl8187.h
index 56aee067f324..a6ad79f61bf9 100644
--- a/drivers/net/wireless/rtl818x/rtl8187/rtl8187.h
+++ b/drivers/net/wireless/rtl818x/rtl8187/rtl8187.h
@@ -15,6 +15,8 @@
 #ifndef RTL8187_H
 #define RTL8187_H
 
+#include <linux/cache.h>
+
 #include "rtl818x.h"
 #include "leds.h"
 
@@ -139,7 +141,10 @@ struct rtl8187_priv {
 	u8 aifsn[4];
 	u8 rfkill_mask;
 	struct {
-		__le64 buf;
+		union {
+			__le64 buf;
+			u8 dummy1[L1_CACHE_BYTES];
+		} ____cacheline_aligned;
 		struct sk_buff_head queue;
 	} b_tx_status; /* This queue is used by both -b and non-b devices */
 	struct mutex io_mutex;
@@ -147,7 +152,8 @@ struct rtl8187_priv {
 		u8 bits8;
 		__le16 bits16;
 		__le32 bits32;
-	} *io_dmabuf;
+		u8 dummy2[L1_CACHE_BYTES];
+	} *io_dmabuf ____cacheline_aligned;
 	bool rfkill_off;
 	u16 seqno;
 };
diff --git a/drivers/net/wireless/rtlwifi/ps.c b/drivers/net/wireless/rtlwifi/ps.c
index deedae3c5449..d1c0191a195b 100644
--- a/drivers/net/wireless/rtlwifi/ps.c
+++ b/drivers/net/wireless/rtlwifi/ps.c
@@ -48,7 +48,7 @@ bool rtl_ps_enable_nic(struct ieee80211_hw *hw)
 
 	/*<2> Enable Adapter */
 	if (rtlpriv->cfg->ops->hw_init(hw))
-		return 1;
+		return false;
 	RT_CLEAR_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_HALT_NIC);
 
 	/*<3> Enable Interrupt */
diff --git a/drivers/net/wireless/rtlwifi/rtl8192ce/hw.c b/drivers/net/wireless/rtlwifi/rtl8192ce/hw.c
index 25e178c80d70..b5b513404376 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192ce/hw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192ce/hw.c
@@ -937,14 +937,26 @@ int rtl92ce_hw_init(struct ieee80211_hw *hw)
 	bool is92c;
 	int err;
 	u8 tmp_u1b;
+	unsigned long flags;
 
 	rtlpci->being_init_adapter = true;
+
+	/* Since this function can take a very long time (up to 350 ms)
+	 * and can be called with irqs disabled, reenable the irqs
+	 * to let the other devices continue being serviced.
+	 *
+	 * It is safe doing so since our own interrupts will only be enabled
+	 * in a subsequent step.
+	 */
+	local_save_flags(flags);
+	local_irq_enable();
+
 	rtlpriv->intf_ops->disable_aspm(hw);
 	rtstatus = _rtl92ce_init_mac(hw);
 	if (!rtstatus) {
 		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "Init MAC failed\n");
 		err = 1;
-		return err;
+		goto exit;
 	}
 
 	err = rtl92c_download_fw(hw);
@@ -952,7 +964,7 @@ int rtl92ce_hw_init(struct ieee80211_hw *hw)
 		RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
 			 "Failed to download FW. Init HW without FW now..\n");
 		err = 1;
-		return err;
+		goto exit;
 	}
 
 	rtlhal->last_hmeboxnum = 0;
@@ -1032,6 +1044,8 @@ int rtl92ce_hw_init(struct ieee80211_hw *hw)
 		RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, "under 1.5V\n");
 	}
 	rtl92c_dm_init(hw);
+exit:
+	local_irq_restore(flags);
 	rtlpci->being_init_adapter = false;
 	return err;
 }