15 files changed, 62 insertions, 403 deletions

diff --git a/drivers/net/wireless/ath/ath9k/Kconfig b/drivers/net/wireless/ath/ath9k/Kconfig
index 17507dc..ec33c80 100644
--- a/drivers/net/wireless/ath/ath9k/Kconfig
+++ b/drivers/net/wireless/ath/ath9k/Kconfig
@@ -84,14 +84,6 @@ config ATH9K_DFS_CERTIFIED
 	  developed. At this point enabling this option won't do anything
 	  except increase code size.
 
-config ATH9K_MAC_DEBUG
-	bool "Atheros MAC statistics"
-	depends on ATH9K_DEBUGFS
-	default y
-	---help---
-	  This option enables collection of statistics for Rx/Tx status
-	  data and some other MAC related statistics
-
 config ATH9K_RATE_CONTROL
 	bool "Atheros ath9k rate control"
 	depends on ATH9K
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
index 09c1f9d..6343cc9 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
@@ -454,6 +454,8 @@ static bool create_pa_curve(u32 *data_L, u32 *data_U, u32 *pa_table, u16 *gain)
 		if (accum_cnt <= thresh_accum_cnt)
 			continue;
 
+		max_index++;
+
 		/* sum(tx amplitude) */
 		accum_tx = ((data_L[i] >> 16) & 0xffff) |
 		    ((data_U[i] & 0x7ff) << 16);
@@ -468,20 +470,21 @@ static bool create_pa_curve(u32 *data_L, u32 *data_U, u32 *pa_table, u16 *gain)
 
 		accum_tx <<= scale_factor;
 		accum_rx <<= scale_factor;
-		x_est[i + 1] = (((accum_tx + accum_cnt) / accum_cnt) + 32) >>
-		    scale_factor;
+		x_est[max_index] =
+			(((accum_tx + accum_cnt) / accum_cnt) + 32) >>
+			scale_factor;
 
-		Y[i + 1] = ((((accum_rx + accum_cnt) / accum_cnt) + 32) >>
+		Y[max_index] =
+			((((accum_rx + accum_cnt) / accum_cnt) + 32) >>
 			    scale_factor) +
-			    (1 << scale_factor) * max_index + 16;
+			(1 << scale_factor) * i + 16;
 
 		if (accum_ang >= (1 << 26))
 			accum_ang -= 1 << 27;
 
-		theta[i + 1] = ((accum_ang * (1 << scale_factor)) + accum_cnt) /
-		    accum_cnt;
-
-		max_index++;
+		theta[max_index] =
+			((accum_ang * (1 << scale_factor)) + accum_cnt) /
+			accum_cnt;
 	}
 
 	/*
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 8a1888d..579ed9c 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -646,6 +646,7 @@ enum sc_op_flags {
 	SC_OP_ANI_RUN,
 	SC_OP_PRIM_STA_VIF,
 	SC_OP_HW_RESET,
+	SC_OP_SCANNING,
 };
 
 /* Powersave flags */
@@ -759,7 +760,6 @@ struct ath_softc {
 	struct rchan *rfs_chan_spec_scan;
 	enum spectral_mode spectral_mode;
 	struct ath_spec_scan spec_config;
-	int scanning;
 
 #ifdef CONFIG_PM_SLEEP
 	atomic_t wow_got_bmiss_intr;
diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c
index 2ff570f..fd1eeba 100644
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -39,7 +39,8 @@ static void ath9k_beaconq_config(struct ath_softc *sc)
 
 	ath9k_hw_get_txq_props(ah, sc->beacon.beaconq, &qi);
 
-	if (sc->sc_ah->opmode == NL80211_IFTYPE_AP) {
+	if (sc->sc_ah->opmode == NL80211_IFTYPE_AP ||
+	    sc->sc_ah->opmode == NL80211_IFTYPE_MESH_POINT) {
 		/* Always burst out beacon and CAB traffic. */
 		qi.tqi_aifs = 1;
 		qi.tqi_cwmin = 0;
@@ -273,7 +274,8 @@ static int ath9k_beacon_choose_slot(struct ath_softc *sc)
 	u64 tsf;
 	int slot;
 
-	if (sc->sc_ah->opmode != NL80211_IFTYPE_AP) {
+	if (sc->sc_ah->opmode != NL80211_IFTYPE_AP &&
+	    sc->sc_ah->opmode != NL80211_IFTYPE_MESH_POINT) {
 		ath_dbg(common, BEACON, "slot 0, tsf: %llu\n",
 			ath9k_hw_gettsf64(sc->sc_ah));
 		return 0;
@@ -765,10 +767,10 @@ void ath9k_set_beacon(struct ath_softc *sc)
 
 	switch (sc->sc_ah->opmode) {
 	case NL80211_IFTYPE_AP:
+	case NL80211_IFTYPE_MESH_POINT:
 		ath9k_beacon_config_ap(sc, cur_conf);
 		break;
 	case NL80211_IFTYPE_ADHOC:
-	case NL80211_IFTYPE_MESH_POINT:
 		ath9k_beacon_config_adhoc(sc, cur_conf);
 		break;
 	case NL80211_IFTYPE_STATION:
diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index e6307b8..fc96ad3 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -738,8 +738,6 @@ void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
 		       struct ath_tx_status *ts, struct ath_txq *txq,
 		       unsigned int flags)
 {
-#define TX_SAMP_DBG(c) (sc->debug.bb_mac_samp[sc->debug.sampidx].ts\
-			[sc->debug.tsidx].c)
 	int qnum = txq->axq_qnum;
 
 	TX_STAT_INC(qnum, tx_pkts_all);
@@ -771,37 +769,6 @@ void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
 		TX_STAT_INC(qnum, data_underrun);
 	if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
 		TX_STAT_INC(qnum, delim_underrun);
-
-#ifdef CONFIG_ATH9K_MAC_DEBUG
-	spin_lock(&sc->debug.samp_lock);
-	TX_SAMP_DBG(jiffies) = jiffies;
-	TX_SAMP_DBG(rssi_ctl0) = ts->ts_rssi_ctl0;
-	TX_SAMP_DBG(rssi_ctl1) = ts->ts_rssi_ctl1;
-	TX_SAMP_DBG(rssi_ctl2) = ts->ts_rssi_ctl2;
-	TX_SAMP_DBG(rssi_ext0) = ts->ts_rssi_ext0;
-	TX_SAMP_DBG(rssi_ext1) = ts->ts_rssi_ext1;
-	TX_SAMP_DBG(rssi_ext2) = ts->ts_rssi_ext2;
-	TX_SAMP_DBG(rateindex) = ts->ts_rateindex;
-	TX_SAMP_DBG(isok) = !!(ts->ts_status & ATH9K_TXERR_MASK);
-	TX_SAMP_DBG(rts_fail_cnt) = ts->ts_shortretry;
-	TX_SAMP_DBG(data_fail_cnt) = ts->ts_longretry;
-	TX_SAMP_DBG(rssi) = ts->ts_rssi;
-	TX_SAMP_DBG(tid) = ts->tid;
-	TX_SAMP_DBG(qid) = ts->qid;
-
-	if (ts->ts_flags & ATH9K_TX_BA) {
-		TX_SAMP_DBG(ba_low) = ts->ba_low;
-		TX_SAMP_DBG(ba_high) = ts->ba_high;
-	} else {
-		TX_SAMP_DBG(ba_low) = 0;
-		TX_SAMP_DBG(ba_high) = 0;
-	}
-
-	sc->debug.tsidx = (sc->debug.tsidx + 1) % ATH_DBG_MAX_SAMPLES;
-	spin_unlock(&sc->debug.samp_lock);
-#endif
-
-#undef TX_SAMP_DBG
 }
 
 static const struct file_operations fops_xmit = {
@@ -915,8 +882,6 @@ static ssize_t read_file_recv(struct file *file, char __user *user_buf,
 void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
 {
 #define RX_PHY_ERR_INC(c) sc->debug.stats.rxstats.phy_err_stats[c]++
-#define RX_SAMP_DBG(c) (sc->debug.bb_mac_samp[sc->debug.sampidx].rs\
-			[sc->debug.rsidx].c)
 
 	RX_STAT_INC(rx_pkts_all);
 	sc->debug.stats.rxstats.rx_bytes_all += rs->rs_datalen;
@@ -940,27 +905,7 @@ void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
 			RX_PHY_ERR_INC(rs->rs_phyerr);
 	}
 
-#ifdef CONFIG_ATH9K_MAC_DEBUG
-	spin_lock(&sc->debug.samp_lock);
-	RX_SAMP_DBG(jiffies) = jiffies;
-	RX_SAMP_DBG(rssi_ctl0) = rs->rs_rssi_ctl0;
-	RX_SAMP_DBG(rssi_ctl1) = rs->rs_rssi_ctl1;
-	RX_SAMP_DBG(rssi_ctl2) = rs->rs_rssi_ctl2;
-	RX_SAMP_DBG(rssi_ext0) = rs->rs_rssi_ext0;
-	RX_SAMP_DBG(rssi_ext1) = rs->rs_rssi_ext1;
-	RX_SAMP_DBG(rssi_ext2) = rs->rs_rssi_ext2;
-	RX_SAMP_DBG(antenna) = rs->rs_antenna;
-	RX_SAMP_DBG(rssi) = rs->rs_rssi;
-	RX_SAMP_DBG(rate) = rs->rs_rate;
-	RX_SAMP_DBG(is_mybeacon) = rs->is_mybeacon;
-
-	sc->debug.rsidx = (sc->debug.rsidx + 1) % ATH_DBG_MAX_SAMPLES;
-	spin_unlock(&sc->debug.samp_lock);
-
-#endif
-
 #undef RX_PHY_ERR_INC
-#undef RX_SAMP_DBG
 }
 
 static const struct file_operations fops_recv = {
@@ -1485,283 +1430,6 @@ static const struct file_operations fops_modal_eeprom = {
 	.llseek = default_llseek,
 };
 
-#ifdef CONFIG_ATH9K_MAC_DEBUG
-
-void ath9k_debug_samp_bb_mac(struct ath_softc *sc)
-{
-#define ATH_SAMP_DBG(c) (sc->debug.bb_mac_samp[sc->debug.sampidx].c)
-	struct ath_hw *ah = sc->sc_ah;
-	struct ath_common *common = ath9k_hw_common(ah);
-	unsigned long flags;
-	int i;
-
-	ath9k_ps_wakeup(sc);
-
-	spin_lock_bh(&sc->debug.samp_lock);
-
-	spin_lock_irqsave(&common->cc_lock, flags);
-	ath_hw_cycle_counters_update(common);
-
-	ATH_SAMP_DBG(cc.cycles) = common->cc_ani.cycles;
-	ATH_SAMP_DBG(cc.rx_busy) = common->cc_ani.rx_busy;
-	ATH_SAMP_DBG(cc.rx_frame) = common->cc_ani.rx_frame;
-	ATH_SAMP_DBG(cc.tx_frame) = common->cc_ani.tx_frame;
-	spin_unlock_irqrestore(&common->cc_lock, flags);
-
-	ATH_SAMP_DBG(noise) = ah->noise;
-
-	REG_WRITE_D(ah, AR_MACMISC,
-		  ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
-		   (AR_MACMISC_MISC_OBS_BUS_1 <<
-		    AR_MACMISC_MISC_OBS_BUS_MSB_S)));
-
-	for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++)
-		ATH_SAMP_DBG(dma_dbg_reg_vals[i]) = REG_READ_D(ah,
-				AR_DMADBG_0 + (i * sizeof(u32)));
-
-	ATH_SAMP_DBG(pcu_obs) = REG_READ_D(ah, AR_OBS_BUS_1);
-	ATH_SAMP_DBG(pcu_cr) = REG_READ_D(ah, AR_CR);
-
-	memcpy(ATH_SAMP_DBG(nfCalHist), sc->caldata.nfCalHist,
-			sizeof(ATH_SAMP_DBG(nfCalHist)));
-
-	sc->debug.sampidx = (sc->debug.sampidx + 1) % ATH_DBG_MAX_SAMPLES;
-	spin_unlock_bh(&sc->debug.samp_lock);
-	ath9k_ps_restore(sc);
-
-#undef ATH_SAMP_DBG
-}
-
-static int open_file_bb_mac_samps(struct inode *inode, struct file *file)
-{
-#define ATH_SAMP_DBG(c) bb_mac_samp[sampidx].c
-	struct ath_softc *sc = inode->i_private;
-	struct ath_hw *ah = sc->sc_ah;
-	struct ath_common *common = ath9k_hw_common(ah);
-	struct ieee80211_conf *conf = &common->hw->conf;
-	struct ath_dbg_bb_mac_samp *bb_mac_samp;
-	struct ath9k_nfcal_hist *h;
-	int i, j, qcuOffset = 0, dcuOffset = 0;
-	u32 *qcuBase, *dcuBase, size = 30000, len = 0;
-	u32 sampidx = 0;
-	u8 *buf;
-	u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask;
-	u8 nread;
-
-	if (test_bit(SC_OP_INVALID, &sc->sc_flags))
-		return -EAGAIN;
-
-	buf = vmalloc(size);
-	if (!buf)
-		return -ENOMEM;
-	bb_mac_samp = vmalloc(sizeof(*bb_mac_samp) * ATH_DBG_MAX_SAMPLES);
-	if (!bb_mac_samp) {
-		vfree(buf);
-		return -ENOMEM;
-	}
-	/* Account the current state too */
-	ath9k_debug_samp_bb_mac(sc);
-
-	spin_lock_bh(&sc->debug.samp_lock);
-	memcpy(bb_mac_samp, sc->debug.bb_mac_samp,
-			sizeof(*bb_mac_samp) * ATH_DBG_MAX_SAMPLES);
-	len += snprintf(buf + len, size - len,
-			"Current Sample Index: %d\n", sc->debug.sampidx);
-	spin_unlock_bh(&sc->debug.samp_lock);
-
-	len += snprintf(buf + len, size - len,
-			"Raw DMA Debug Dump:\n");
-	len += snprintf(buf + len, size - len, "Sample |\t");
-	for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++)
-		len += snprintf(buf + len, size - len, " DMA Reg%d |\t", i);
-	len += snprintf(buf + len, size - len, "\n");
-
-	for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
-		len += snprintf(buf + len, size - len, "%d\t", sampidx);
-
-		for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++)
-			len += snprintf(buf + len, size - len, " %08x\t",
-					ATH_SAMP_DBG(dma_dbg_reg_vals[i]));
-		len += snprintf(buf + len, size - len, "\n");
-	}
-	len += snprintf(buf + len, size - len, "\n");
-
-	len += snprintf(buf + len, size - len,
-			"Sample Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n");
-	for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
-		qcuBase = &ATH_SAMP_DBG(dma_dbg_reg_vals[0]);
-		dcuBase = &ATH_SAMP_DBG(dma_dbg_reg_vals[4]);
-
-		for (i = 0; i < ATH9K_NUM_QUEUES; i++,
-				qcuOffset += 4, dcuOffset += 5) {
-			if (i == 8) {
-				qcuOffset = 0;
-				qcuBase++;
-			}
-
-			if (i == 6) {
-				dcuOffset = 0;
-				dcuBase++;
-			}
-			if (!sc->debug.stats.txstats[i].queued)
-				continue;
-
-			len += snprintf(buf + len, size - len,
-				"%4d %7d    %2x      %1x     %2x         %2x\n",
-				sampidx, i,
-				(*qcuBase & (0x7 << qcuOffset)) >> qcuOffset,
-				(*qcuBase & (0x8 << qcuOffset)) >>
-				(qcuOffset + 3),
-				ATH_SAMP_DBG(dma_dbg_reg_vals[2]) &
-				(0x7 << (i * 3)) >> (i * 3),
-				(*dcuBase & (0x1f << dcuOffset)) >> dcuOffset);
-		}
-		len += snprintf(buf + len, size - len, "\n");
-	}
-	len += snprintf(buf + len, size - len,
-			"samp qcu_sh qcu_fh qcu_comp dcu_comp dcu_arb dcu_fp "
-			"ch_idle_dur ch_idle_dur_val txfifo_val0 txfifo_val1 "
-			"txfifo_dcu0 txfifo_dcu1 pcu_obs AR_CR\n");
-
-	for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
-		qcuBase = &ATH_SAMP_DBG(dma_dbg_reg_vals[0]);
-		dcuBase = &ATH_SAMP_DBG(dma_dbg_reg_vals[4]);
-
-		len += snprintf(buf + len, size - len, "%4d %5x %5x ", sampidx,
-			(ATH_SAMP_DBG(dma_dbg_reg_vals[3]) & 0x003c0000) >> 18,
-			(ATH_SAMP_DBG(dma_dbg_reg_vals[3]) & 0x03c00000) >> 22);
-		len += snprintf(buf + len, size - len, "%7x %8x ",
-			(ATH_SAMP_DBG(dma_dbg_reg_vals[3]) & 0x1c000000) >> 26,
-			(ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x3));
-		len += snprintf(buf + len, size - len, "%7x %7x ",
-			(ATH_SAMP_DBG(dma_dbg_reg_vals[5]) & 0x06000000) >> 25,
-			(ATH_SAMP_DBG(dma_dbg_reg_vals[5]) & 0x38000000) >> 27);
-		len += snprintf(buf + len, size - len, "%7d %12d ",
-			(ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x000003fc) >> 2,
-			(ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x00000400) >> 10);
-		len += snprintf(buf + len, size - len, "%12d %12d ",
-			(ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x00000800) >> 11,
-			(ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x00001000) >> 12);
-		len += snprintf(buf + len, size - len, "%12d %12d ",
-			(ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x0001e000) >> 13,
-			(ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x001e0000) >> 17);
-		len += snprintf(buf + len, size - len, "0x%07x 0x%07x\n",
-				ATH_SAMP_DBG(pcu_obs), ATH_SAMP_DBG(pcu_cr));
-	}
-
-	len += snprintf(buf + len, size - len,
-			"Sample ChNoise Chain privNF #Reading Readings\n");
-	for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
-		h = ATH_SAMP_DBG(nfCalHist);
-		if (!ATH_SAMP_DBG(noise))
-			continue;
-
-		for (i = 0; i < NUM_NF_READINGS; i++) {
-			if (!(chainmask & (1 << i)) ||
-			    ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf)))
-				continue;
-
-			nread = AR_PHY_CCA_FILTERWINDOW_LENGTH -
-				h[i].invalidNFcount;
-			len += snprintf(buf + len, size - len,
-					"%4d %5d %4d\t   %d\t %d\t",
-					sampidx, ATH_SAMP_DBG(noise),
-					i, h[i].privNF, nread);
-			for (j = 0; j < nread; j++)
-				len += snprintf(buf + len, size - len,
-					" %d", h[i].nfCalBuffer[j]);
-			len += snprintf(buf + len, size - len, "\n");
-		}
-	}
-	len += snprintf(buf + len, size - len, "\nCycle counters:\n"
-			"Sample Total    Rxbusy   Rxframes Txframes\n");
-	for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
-		if (!ATH_SAMP_DBG(cc.cycles))
-			continue;
-		len += snprintf(buf + len, size - len,
-				"%4d %08x %08x %08x %08x\n",
-				sampidx, ATH_SAMP_DBG(cc.cycles),
-				ATH_SAMP_DBG(cc.rx_busy),
-				ATH_SAMP_DBG(cc.rx_frame),
-				ATH_SAMP_DBG(cc.tx_frame));
-	}
-
-	len += snprintf(buf + len, size - len, "Tx status Dump :\n");
-	len += snprintf(buf + len, size - len,
-			"Sample rssi:- ctl0 ctl1 ctl2 ext0 ext1 ext2 comb "
-			"isok rts_fail data_fail rate tid qid "
-					"ba_low  ba_high tx_before(ms)\n");
-	for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
-		for (i = 0; i < ATH_DBG_MAX_SAMPLES; i++) {
-			if (!ATH_SAMP_DBG(ts[i].jiffies))
-				continue;
-			len += snprintf(buf + len, size - len, "%-14d"
-				"%-4d %-4d %-4d %-4d %-4d %-4d %-4d %-4d %-8d "
-				"%-9d %-4d %-3d %-3d %08x %08x %-11d\n",
-				sampidx,
-				ATH_SAMP_DBG(ts[i].rssi_ctl0),
-				ATH_SAMP_DBG(ts[i].rssi_ctl1),
-				ATH_SAMP_DBG(ts[i].rssi_ctl2),
-				ATH_SAMP_DBG(ts[i].rssi_ext0),
-				ATH_SAMP_DBG(ts[i].rssi_ext1),
-				ATH_SAMP_DBG(ts[i].rssi_ext2),
-				ATH_SAMP_DBG(ts[i].rssi),
-				ATH_SAMP_DBG(ts[i].isok),
-				ATH_SAMP_DBG(ts[i].rts_fail_cnt),
-				ATH_SAMP_DBG(ts[i].data_fail_cnt),
-				ATH_SAMP_DBG(ts[i].rateindex),
-				ATH_SAMP_DBG(ts[i].tid),
-				ATH_SAMP_DBG(ts[i].qid),
-				ATH_SAMP_DBG(ts[i].ba_low),
-				ATH_SAMP_DBG(ts[i].ba_high),
-				jiffies_to_msecs(jiffies -
-					ATH_SAMP_DBG(ts[i].jiffies)));
-		}
-	}
-
-	len += snprintf(buf + len, size - len, "Rx status Dump :\n");
-	len += snprintf(buf + len, size - len, "Sample rssi:- ctl0 ctl1 ctl2 "
-			"ext0 ext1 ext2 comb beacon ant rate rx_before(ms)\n");
-	for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
-		for (i = 0; i < ATH_DBG_MAX_SAMPLES; i++) {
-			if (!ATH_SAMP_DBG(rs[i].jiffies))
-				continue;
-			len += snprintf(buf + len, size - len, "%-14d"
-				"%-4d %-4d %-4d %-4d %-4d %-4d %-4d %-9s %-2d %02x %-13d\n",
-				sampidx,
-				ATH_SAMP_DBG(rs[i].rssi_ctl0),
-				ATH_SAMP_DBG(rs[i].rssi_ctl1),
-				ATH_SAMP_DBG(rs[i].rssi_ctl2),
-				ATH_SAMP_DBG(rs[i].rssi_ext0),
-				ATH_SAMP_DBG(rs[i].rssi_ext1),
-				ATH_SAMP_DBG(rs[i].rssi_ext2),
-				ATH_SAMP_DBG(rs[i].rssi),
-				ATH_SAMP_DBG(rs[i].is_mybeacon) ?
-				"True" : "False",
-				ATH_SAMP_DBG(rs[i].antenna),
-				ATH_SAMP_DBG(rs[i].rate),
-				jiffies_to_msecs(jiffies -
-					ATH_SAMP_DBG(rs[i].jiffies)));
-		}
-	}
-
-	vfree(bb_mac_samp);
-	file->private_data = buf;
-
-	return 0;
-#undef ATH_SAMP_DBG
-}
-
-static const struct file_operations fops_samps = {
-	.open = open_file_bb_mac_samps,
-	.read = ath9k_debugfs_read_buf,
-	.release = ath9k_debugfs_release_buf,
-	.owner = THIS_MODULE,
-	.llseek = default_llseek,
-};
-
-#endif
-
 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
 static ssize_t read_file_btcoex(struct file *file, char __user *user_buf,
 				size_t count, loff_t *ppos)
@@ -2087,11 +1755,6 @@ int ath9k_init_debug(struct ath_hw *ah)
 	debugfs_create_file("spectral_fft_period", S_IRUSR | S_IWUSR,
 			    sc->debug.debugfs_phy, sc,
 			    &fops_spectral_fft_period);
-
-#ifdef CONFIG_ATH9K_MAC_DEBUG
-	debugfs_create_file("samples", S_IRUSR, sc->debug.debugfs_phy, sc,
-			    &fops_samps);
-#endif
 	debugfs_create_u32("gpio_mask", S_IRUSR | S_IWUSR,
 			   sc->debug.debugfs_phy, &sc->sc_ah->gpio_mask);
 	debugfs_create_u32("gpio_val", S_IRUSR | S_IWUSR,
diff --git a/drivers/net/wireless/ath/ath9k/debug.h b/drivers/net/wireless/ath/ath9k/debug.h
index 794a7ec..62da19c 100644
--- a/drivers/net/wireless/ath/ath9k/debug.h
+++ b/drivers/net/wireless/ath/ath9k/debug.h
@@ -294,13 +294,6 @@ struct ath9k_debug {
 	struct dentry *debugfs_phy;
 	u32 regidx;
 	struct ath_stats stats;
-#ifdef CONFIG_ATH9K_MAC_DEBUG
-	spinlock_t samp_lock;
-	struct ath_dbg_bb_mac_samp bb_mac_samp[ATH_DBG_MAX_SAMPLES];
-	u8 sampidx;
-	u8 tsidx;
-	u8 rsidx;
-#endif
 };
 
 int ath9k_init_debug(struct ath_hw *ah);
@@ -359,17 +352,4 @@ static inline void ath_debug_stat_rx(struct ath_softc *sc,
 
 #endif /* CONFIG_ATH9K_DEBUGFS */
 
-#ifdef CONFIG_ATH9K_MAC_DEBUG
-
-void ath9k_debug_samp_bb_mac(struct ath_softc *sc);
-
-#else
-
-static inline void ath9k_debug_samp_bb_mac(struct ath_softc *sc)
-{
-}
-
-#endif
-
-
 #endif /* DEBUG_H */
diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h
index d3b099d..0085e64 100644
--- a/drivers/net/wireless/ath/ath9k/htc.h
+++ b/drivers/net/wireless/ath/ath9k/htc.h
@@ -208,6 +208,9 @@ struct ath9k_htc_target_rx_stats {
 		case NL80211_IFTYPE_AP:		\
 			_priv->num_ap_vif++;	\
 			break;			\
+		case NL80211_IFTYPE_MESH_POINT:	\
+			_priv->num_mbss_vif++;	\
+			break;			\
 		default:			\
 			break;			\
 		}				\
@@ -224,6 +227,9 @@ struct ath9k_htc_target_rx_stats {
 		case NL80211_IFTYPE_AP:		\
 			_priv->num_ap_vif--;	\
 			break;			\
+		case NL80211_IFTYPE_MESH_POINT:	\
+			_priv->num_mbss_vif--;	\
+			break;			\
 		default:			\
 			break;			\
 		}				\
@@ -450,6 +456,7 @@ struct ath9k_htc_priv {
 	u8 sta_slot;
 	u8 vif_sta_pos[ATH9K_HTC_MAX_VIF];
 	u8 num_ibss_vif;
+	u8 num_mbss_vif;
 	u8 num_sta_vif;
 	u8 num_sta_assoc_vif;
 	u8 num_ap_vif;
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c b/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c
index f13f458..e0c03bd 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c
@@ -28,7 +28,8 @@ void ath9k_htc_beaconq_config(struct ath9k_htc_priv *priv)
 
 	ath9k_hw_get_txq_props(ah, priv->beaconq, &qi);
 
-	if (priv->ah->opmode == NL80211_IFTYPE_AP) {
+	if (priv->ah->opmode == NL80211_IFTYPE_AP ||
+	    priv->ah->opmode == NL80211_IFTYPE_MESH_POINT) {
 		qi.tqi_aifs = 1;
 		qi.tqi_cwmin = 0;
 		qi.tqi_cwmax = 0;
@@ -628,6 +629,7 @@ void ath9k_htc_beacon_config(struct ath9k_htc_priv *priv,
 	case NL80211_IFTYPE_ADHOC:
 		ath9k_htc_beacon_config_adhoc(priv, cur_conf);
 		break;
+	case NL80211_IFTYPE_MESH_POINT:
 	case NL80211_IFTYPE_AP:
 		ath9k_htc_beacon_config_ap(priv, cur_conf);
 		break;
@@ -649,6 +651,7 @@ void ath9k_htc_beacon_reconfig(struct ath9k_htc_priv *priv)
 	case NL80211_IFTYPE_ADHOC:
 		ath9k_htc_beacon_config_adhoc(priv, cur_conf);
 		break;
+	case NL80211_IFTYPE_MESH_POINT:
 	case NL80211_IFTYPE_AP:
 		ath9k_htc_beacon_config_ap(priv, cur_conf);
 		break;
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_init.c b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
index a47f5e0..59f6436 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
@@ -698,7 +698,8 @@ static const struct ieee80211_iface_limit if_limits[] = {
 	{ .max = 2,	.types = BIT(NL80211_IFTYPE_STATION) |
 				 BIT(NL80211_IFTYPE_P2P_CLIENT) },
 	{ .max = 2,	.types = BIT(NL80211_IFTYPE_AP) |
-				 BIT(NL80211_IFTYPE_P2P_GO) },
+				 BIT(NL80211_IFTYPE_P2P_GO) |
+				 BIT(NL80211_IFTYPE_MESH_POINT) },
 };
 
 static const struct ieee80211_iface_combination if_comb = {
@@ -721,6 +722,7 @@ static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv,
 		IEEE80211_HW_SUPPORTS_PS |
 		IEEE80211_HW_PS_NULLFUNC_STACK |
 		IEEE80211_HW_REPORTS_TX_ACK_STATUS |
+		IEEE80211_HW_MFP_CAPABLE |
 		IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING;
 
 	hw->wiphy->interface_modes =
@@ -728,7 +730,8 @@ static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv,
 		BIT(NL80211_IFTYPE_ADHOC) |
 		BIT(NL80211_IFTYPE_AP) |
 		BIT(NL80211_IFTYPE_P2P_GO) |
-		BIT(NL80211_IFTYPE_P2P_CLIENT);
+		BIT(NL80211_IFTYPE_P2P_CLIENT) |
+		BIT(NL80211_IFTYPE_MESH_POINT);
 
 	hw->wiphy->iface_combinations = &if_comb;
 	hw->wiphy->n_iface_combinations = 1;
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index 0743a47..2a67b57 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -113,7 +113,9 @@ static void ath9k_htc_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
 	struct ath9k_htc_priv *priv = data;
 	struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
 
-	if ((vif->type == NL80211_IFTYPE_AP) && bss_conf->enable_beacon)
+	if ((vif->type == NL80211_IFTYPE_AP ||
+	     vif->type == NL80211_IFTYPE_MESH_POINT) &&
+	    bss_conf->enable_beacon)
 		priv->reconfig_beacon = true;
 
 	if (bss_conf->assoc) {
@@ -180,6 +182,8 @@ static void ath9k_htc_set_opmode(struct ath9k_htc_priv *priv)
 		priv->ah->opmode = NL80211_IFTYPE_ADHOC;
 	else if (priv->num_ap_vif)
 		priv->ah->opmode = NL80211_IFTYPE_AP;
+	else if (priv->num_mbss_vif)
+		priv->ah->opmode = NL80211_IFTYPE_MESH_POINT;
 	else
 		priv->ah->opmode = NL80211_IFTYPE_STATION;
 
@@ -1052,6 +1056,9 @@ static int ath9k_htc_add_interface(struct ieee80211_hw *hw,
 	case NL80211_IFTYPE_AP:
 		hvif.opmode = HTC_M_HOSTAP;
 		break;
+	case NL80211_IFTYPE_MESH_POINT:
+		hvif.opmode = HTC_M_WDS;	/* close enough */
+		break;
 	default:
 		ath_err(common,
 			"Interface type %d not yet supported\n", vif->type);
@@ -1084,6 +1091,7 @@ static int ath9k_htc_add_interface(struct ieee80211_hw *hw,
 	INC_VIF(priv, vif->type);
 
 	if ((vif->type == NL80211_IFTYPE_AP) ||
+	    (vif->type == NL80211_IFTYPE_MESH_POINT) ||
 	    (vif->type == NL80211_IFTYPE_ADHOC))
 		ath9k_htc_assign_bslot(priv, vif);
 
@@ -1134,6 +1142,7 @@ static void ath9k_htc_remove_interface(struct ieee80211_hw *hw,
 	DEC_VIF(priv, vif->type);
 
 	if ((vif->type == NL80211_IFTYPE_AP) ||
+	     vif->type == NL80211_IFTYPE_MESH_POINT ||
 	    (vif->type == NL80211_IFTYPE_ADHOC))
 		ath9k_htc_remove_bslot(priv, vif);
 
@@ -1525,9 +1534,10 @@ static void ath9k_htc_bss_info_changed(struct ieee80211_hw *hw,
 	if ((changed & BSS_CHANGED_BEACON_ENABLED) && !bss_conf->enable_beacon) {
 		/*
 		 * Disable SWBA interrupt only if there are no
-		 * AP/IBSS interfaces.
+		 * concurrent AP/mesh or IBSS interfaces.
 		 */
-		if ((priv->num_ap_vif <= 1) || priv->num_ibss_vif) {
+		if ((priv->num_ap_vif + priv->num_mbss_vif <= 1) ||
+		     priv->num_ibss_vif) {
 			ath_dbg(common, CONFIG,
 				"Beacon disabled for BSS: %pM\n",
 				bss_conf->bssid);
@@ -1538,12 +1548,15 @@ static void ath9k_htc_bss_info_changed(struct ieee80211_hw *hw,
 
 	if (changed & BSS_CHANGED_BEACON_INT) {
 		/*
-		 * Reset the HW TSF for the first AP interface.
+		 * Reset the HW TSF for the first AP or mesh interface.
 		 */
-		if ((priv->ah->opmode == NL80211_IFTYPE_AP) &&
-		    (priv->nvifs == 1) &&
-		    (priv->num_ap_vif == 1) &&
-		    (vif->type == NL80211_IFTYPE_AP)) {
+		if (priv->nvifs == 1 &&
+		    ((priv->ah->opmode == NL80211_IFTYPE_AP &&
+		      vif->type == NL80211_IFTYPE_AP &&
+		      priv->num_ap_vif == 1) ||
+		    (priv->ah->opmode == NL80211_IFTYPE_MESH_POINT &&
+		      vif->type == NL80211_IFTYPE_MESH_POINT &&
+		      priv->num_mbss_vif == 1))) {
 			set_bit(OP_TSF_RESET, &priv->op_flags);
 		}
 		ath_dbg(common, CONFIG,
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
index 6bd0e92..e602c95 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
@@ -887,7 +887,7 @@ u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv)
 	if (priv->rxfilter & FIF_PSPOLL)
 		rfilt |= ATH9K_RX_FILTER_PSPOLL;
 
-	if (priv->nvifs > 1)
+	if (priv->nvifs > 1 || priv->rxfilter & FIF_OTHER_BSS)
 		rfilt |= ATH9K_RX_FILTER_MCAST_BCAST_ALL;
 
 	return rfilt;
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 7f25da8..a263ccc 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1245,10 +1245,10 @@ static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode)
 
 	switch (opmode) {
 	case NL80211_IFTYPE_ADHOC:
-	case NL80211_IFTYPE_MESH_POINT:
 		set |= AR_STA_ID1_ADHOC;
 		REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
 		break;
+	case NL80211_IFTYPE_MESH_POINT:
 	case NL80211_IFTYPE_AP:
 		set |= AR_STA_ID1_STA_AP;
 		/* fall through */
@@ -2246,12 +2246,12 @@ void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period)
 
 	switch (ah->opmode) {
 	case NL80211_IFTYPE_ADHOC:
-	case NL80211_IFTYPE_MESH_POINT:
 		REG_SET_BIT(ah, AR_TXCFG,
 			    AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY);
 		REG_WRITE(ah, AR_NEXT_NDP_TIMER, next_beacon +
 			  TU_TO_USEC(ah->atim_window ? ah->atim_window : 1));
 		flags |= AR_NDP_TIMER_EN;
+	case NL80211_IFTYPE_MESH_POINT:
 	case NL80211_IFTYPE_AP:
 		REG_WRITE(ah, AR_NEXT_TBTT_TIMER, next_beacon);
 		REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT, next_beacon -
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 0237b28..c7b888f 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -613,9 +613,6 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc,
 	spin_lock_init(&sc->sc_serial_rw);
 	spin_lock_init(&sc->sc_pm_lock);
 	mutex_init(&sc->mutex);
-#ifdef CONFIG_ATH9K_MAC_DEBUG
-	spin_lock_init(&sc->debug.samp_lock);
-#endif
 	tasklet_init(&sc->intr_tq, ath9k_tasklet, (unsigned long)sc);
 	tasklet_init(&sc->bcon_tasklet, ath9k_beacon_tasklet,
 		     (unsigned long)sc);
diff --git a/drivers/net/wireless/ath/ath9k/link.c b/drivers/net/wireless/ath/ath9k/link.c
index 849259b..cc422a4 100644
--- a/drivers/net/wireless/ath/ath9k/link.c
+++ b/drivers/net/wireless/ath/ath9k/link.c
@@ -418,7 +418,6 @@ void ath_ani_calibrate(unsigned long data)
 		longcal ? "long" : "", shortcal ? "short" : "",
 		aniflag ? "ani" : "", common->ani.caldone ? "true" : "false");
 
-	ath9k_debug_samp_bb_mac(sc);
 	ath9k_ps_restore(sc);
 
 set_timer:
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index a18414b..a1630d1 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -193,7 +193,6 @@ static bool ath_prepare_reset(struct ath_softc *sc)
 	ath_stop_ani(sc);
 	del_timer_sync(&sc->rx_poll_timer);
 
-	ath9k_debug_samp_bb_mac(sc);
 	ath9k_hw_disable_interrupts(ah);
 
 	if (!ath_drain_all_txq(sc))
@@ -1273,7 +1272,7 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
 				curchan->center_freq);
 		} else {
 			/* perform spectral scan if requested. */
-			if (sc->scanning &&
+			if (test_bit(SC_OP_SCANNING, &sc->sc_flags) &&
 			    sc->spectral_mode == SPECTRAL_CHANSCAN)
 				ath9k_spectral_scan_trigger(hw);
 		}
@@ -1689,7 +1688,7 @@ static int ath9k_ampdu_action(struct ieee80211_hw *hw,
 	struct ath_softc *sc = hw->priv;
 	int ret = 0;
 
-	local_bh_disable();
+	mutex_lock(&sc->mutex);
 
 	switch (action) {
 	case IEEE80211_AMPDU_RX_START:
@@ -1720,7 +1719,7 @@ static int ath9k_ampdu_action(struct ieee80211_hw *hw,
 		ath_err(ath9k_hw_common(sc->sc_ah), "Unknown AMPDU action\n");
 	}
 
-	local_bh_enable();
+	mutex_unlock(&sc->mutex);
 
 	return ret;
 }
@@ -2339,15 +2338,13 @@ static void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled)
 static void ath9k_sw_scan_start(struct ieee80211_hw *hw)
 {
 	struct ath_softc *sc = hw->priv;
-
-	sc->scanning = 1;
+	set_bit(SC_OP_SCANNING, &sc->sc_flags);
 }
 
 static void ath9k_sw_scan_complete(struct ieee80211_hw *hw)
 {
 	struct ath_softc *sc = hw->priv;
-
-	sc->scanning = 0;
+	clear_bit(SC_OP_SCANNING, &sc->sc_flags);
 }
 
 struct ieee80211_ops ath9k_ops = {