mac80211: Use a cfg80211_chan_def in ieee80211_hw_conf_chan

Drivers that don't use chanctxes cannot perform VHT association because
they still use a "backward compatibility" pair of {ieee80211_channel,
nl80211_channel_type} in ieee80211_conf and ieee80211_local.

Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com>
[fix kernel-doc]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

70 files changed, 293 insertions, 244 deletions

diff --git a/drivers/net/wireless/adm8211.c b/drivers/net/wireless/adm8211.c
index 3d339e04efb..f9a24e599de 100644
--- a/drivers/net/wireless/adm8211.c
+++ b/drivers/net/wireless/adm8211.c
@@ -1293,7 +1293,8 @@ static int adm8211_config(struct ieee80211_hw *dev, u32 changed)
 {
 	struct adm8211_priv *priv = dev->priv;
 	struct ieee80211_conf *conf = &dev->conf;
-	int channel = ieee80211_frequency_to_channel(conf->channel->center_freq);
+	int channel =
+		ieee80211_frequency_to_channel(conf->chandef.chan->center_freq);
 
 	if (channel != priv->channel) {
 		priv->channel = channel;
diff --git a/drivers/net/wireless/at76c50x-usb.c b/drivers/net/wireless/at76c50x-usb.c
index 5ac5f7ae272..34c8a33cac0 100644
--- a/drivers/net/wireless/at76c50x-usb.c
+++ b/drivers/net/wireless/at76c50x-usb.c
@@ -1943,12 +1943,12 @@ static int at76_config(struct ieee80211_hw *hw, u32 changed)
 	struct at76_priv *priv = hw->priv;
 
 	at76_dbg(DBG_MAC80211, "%s(): channel %d",
-		 __func__, hw->conf.channel->hw_value);
+		 __func__, hw->conf.chandef.chan->hw_value);
 	at76_dbg_dump(DBG_MAC80211, priv->bssid, ETH_ALEN, "bssid:");
 
 	mutex_lock(&priv->mtx);
 
-	priv->channel = hw->conf.channel->hw_value;
+	priv->channel = hw->conf.chandef.chan->hw_value;
 
 	if (is_valid_ether_addr(priv->bssid))
 		at76_join(priv);
diff --git a/drivers/net/wireless/ath/ar5523/ar5523.c b/drivers/net/wireless/ath/ar5523/ar5523.c
index afd1e36d308..17d7fece35d 100644
--- a/drivers/net/wireless/ath/ar5523/ar5523.c
+++ b/drivers/net/wireless/ath/ar5523/ar5523.c
@@ -457,14 +457,14 @@ static int ar5523_set_chan(struct ar5523 *ar)
 	memset(&reset, 0, sizeof(reset));
 	reset.flags |= cpu_to_be32(UATH_CHAN_2GHZ);
 	reset.flags |= cpu_to_be32(UATH_CHAN_OFDM);
-	reset.freq = cpu_to_be32(conf->channel->center_freq);
+	reset.freq = cpu_to_be32(conf->chandef.chan->center_freq);
 	reset.maxrdpower = cpu_to_be32(50);	/* XXX */
 	reset.channelchange = cpu_to_be32(1);
 	reset.keeprccontent = cpu_to_be32(0);
 
 	ar5523_dbg(ar, "set chan flags 0x%x freq %d\n",
 		   be32_to_cpu(reset.flags),
-		   conf->channel->center_freq);
+		   conf->chandef.chan->center_freq);
 	return ar5523_cmd_write(ar, WDCMSG_RESET, &reset, sizeof(reset), 0);
 }
 
@@ -594,7 +594,7 @@ static void ar5523_data_rx_cb(struct urb *urb)
 	rx_status = IEEE80211_SKB_RXCB(data->skb);
 	memset(rx_status, 0, sizeof(*rx_status));
 	rx_status->freq = be32_to_cpu(desc->channel);
-	rx_status->band = hw->conf.channel->band;
+	rx_status->band = hw->conf.chandef.chan->band;
 	rx_status->signal = -95 + be32_to_cpu(desc->rssi);
 
 	ieee80211_rx_irqsafe(hw, data->skb);
@@ -1153,13 +1153,13 @@ static int ar5523_get_wlan_mode(struct ar5523 *ar,
 	struct ieee80211_sta *sta;
 	u32 sta_rate_set;
 
-	band = ar->hw->wiphy->bands[ar->hw->conf.channel->band];
+	band = ar->hw->wiphy->bands[ar->hw->conf.chandef.chan->band];
 	sta = ieee80211_find_sta(ar->vif, bss_conf->bssid);
 	if (!sta) {
 		ar5523_info(ar, "STA not found!\n");
 		return WLAN_MODE_11b;
 	}
-	sta_rate_set = sta->supp_rates[ar->hw->conf.channel->band];
+	sta_rate_set = sta->supp_rates[ar->hw->conf.chandef.chan->band];
 
 	for (bit = 0; bit < band->n_bitrates; bit++) {
 		if (sta_rate_set & 1) {
@@ -1197,11 +1197,11 @@ static void ar5523_create_rateset(struct ar5523 *ar,
 		ar5523_info(ar, "STA not found. Cannot set rates\n");
 		sta_rate_set = bss_conf->basic_rates;
 	} else
-		sta_rate_set = sta->supp_rates[ar->hw->conf.channel->band];
+		sta_rate_set = sta->supp_rates[ar->hw->conf.chandef.chan->band];
 
 	ar5523_dbg(ar, "sta rate_set = %08x\n", sta_rate_set);
 
-	band = ar->hw->wiphy->bands[ar->hw->conf.channel->band];
+	band = ar->hw->wiphy->bands[ar->hw->conf.chandef.chan->band];
 	for (bit = 0; bit < band->n_bitrates; bit++) {
 		BUG_ON(i >= AR5523_MAX_NRATES);
 		ar5523_dbg(ar, "Considering rate %d : %d\n",
diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index 1d264c0f5a9..9b20d9ee271 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -2639,7 +2639,7 @@ int ath5k_start(struct ieee80211_hw *hw)
 	 * be followed by initialization of the appropriate bits
 	 * and then setup of the interrupt mask.
 	 */
-	ah->curchan = ah->hw->conf.channel;
+	ah->curchan = ah->hw->conf.chandef.chan;
 	ah->imask = AR5K_INT_RXOK
 		| AR5K_INT_RXERR
 		| AR5K_INT_RXEOL
diff --git a/drivers/net/wireless/ath/ath5k/mac80211-ops.c b/drivers/net/wireless/ath/ath5k/mac80211-ops.c
index 4264341533e..06f86f43571 100644
--- a/drivers/net/wireless/ath/ath5k/mac80211-ops.c
+++ b/drivers/net/wireless/ath/ath5k/mac80211-ops.c
@@ -202,7 +202,7 @@ ath5k_config(struct ieee80211_hw *hw, u32 changed)
 	mutex_lock(&ah->lock);
 
 	if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
-		ret = ath5k_chan_set(ah, conf->channel);
+		ret = ath5k_chan_set(ah, conf->chandef.chan);
 		if (ret < 0)
 			goto unlock;
 	}
@@ -678,7 +678,7 @@ ath5k_get_survey(struct ieee80211_hw *hw, int idx, struct survey_info *survey)
 
 	memcpy(survey, &ah->survey, sizeof(*survey));
 
-	survey->channel = conf->channel;
+	survey->channel = conf->chandef.chan;
 	survey->noise = ah->ah_noise_floor;
 	survey->filled = SURVEY_INFO_NOISE_DBM |
 			SURVEY_INFO_CHANNEL_TIME |
diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c
index 5f05c26d1ec..2ff570f7f8f 100644
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -79,7 +79,7 @@ static void ath9k_beacon_setup(struct ath_softc *sc, struct ieee80211_vif *vif,
 	u8 chainmask = ah->txchainmask;
 	u8 rate = 0;
 
-	sband = &sc->sbands[common->hw->conf.channel->band];
+	sband = &sc->sbands[common->hw->conf.chandef.chan->band];
 	rate = sband->bitrates[rateidx].hw_value;
 	if (vif->bss_conf.use_short_preamble)
 		rate |= sband->bitrates[rateidx].hw_value_short;
diff --git a/drivers/net/wireless/ath/ath9k/calib.c b/drivers/net/wireless/ath/ath9k/calib.c
index 1e8508530e9..b184f1ff0d3 100644
--- a/drivers/net/wireless/ath/ath9k/calib.c
+++ b/drivers/net/wireless/ath/ath9k/calib.c
@@ -208,7 +208,7 @@ bool ath9k_hw_reset_calvalid(struct ath_hw *ah)
 		return true;
 
 	ath_dbg(common, CALIBRATE, "Resetting Cal %d state for channel %u\n",
-		currCal->calData->calType, conf->channel->center_freq);
+		currCal->calData->calType, conf->chandef.chan->center_freq);
 
 	ah->caldata->CalValid &= ~currCal->calData->calType;
 	currCal->calState = CAL_WAITING;
diff --git a/drivers/net/wireless/ath/ath9k/common.c b/drivers/net/wireless/ath/ath9k/common.c
index 905f1b31396..6c78fe7ca54 100644
--- a/drivers/net/wireless/ath/ath9k/common.c
+++ b/drivers/net/wireless/ath/ath9k/common.c
@@ -133,13 +133,14 @@ EXPORT_SYMBOL(ath9k_cmn_update_ichannel);
 struct ath9k_channel *ath9k_cmn_get_curchannel(struct ieee80211_hw *hw,
 					       struct ath_hw *ah)
 {
-	struct ieee80211_channel *curchan = hw->conf.channel;
+	struct ieee80211_channel *curchan = hw->conf.chandef.chan;
 	struct ath9k_channel *channel;
 	u8 chan_idx;
 
 	chan_idx = curchan->hw_value;
 	channel = &ah->channels[chan_idx];
-	ath9k_cmn_update_ichannel(channel, curchan, hw->conf.channel_type);
+	ath9k_cmn_update_ichannel(channel, curchan,
+				  cfg80211_get_chandef_type(&hw->conf.chandef));
 
 	return channel;
 }
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index a8016d70088..098e3545e51 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -190,7 +190,7 @@ void ath9k_htc_reset(struct ath9k_htc_priv *priv)
 {
 	struct ath_hw *ah = priv->ah;
 	struct ath_common *common = ath9k_hw_common(ah);
-	struct ieee80211_channel *channel = priv->hw->conf.channel;
+	struct ieee80211_channel *channel = priv->hw->conf.chandef.chan;
 	struct ath9k_hw_cal_data *caldata = NULL;
 	enum htc_phymode mode;
 	__be16 htc_mode;
@@ -250,7 +250,7 @@ static int ath9k_htc_set_channel(struct ath9k_htc_priv *priv,
 	struct ath_common *common = ath9k_hw_common(ah);
 	struct ieee80211_conf *conf = &common->hw->conf;
 	bool fastcc;
-	struct ieee80211_channel *channel = hw->conf.channel;
+	struct ieee80211_channel *channel = hw->conf.chandef.chan;
 	struct ath9k_hw_cal_data *caldata = NULL;
 	enum htc_phymode mode;
 	__be16 htc_mode;
@@ -602,7 +602,7 @@ static void ath9k_htc_setup_rate(struct ath9k_htc_priv *priv,
 	u32 caps = 0;
 	int i, j;
 
-	sband = priv->hw->wiphy->bands[priv->hw->conf.channel->band];
+	sband = priv->hw->wiphy->bands[priv->hw->conf.chandef.chan->band];
 
 	for (i = 0, j = 0; i < sband->n_bitrates; i++) {
 		if (sta->supp_rates[sband->band] & BIT(i)) {
@@ -904,7 +904,7 @@ static int ath9k_htc_start(struct ieee80211_hw *hw)
 	struct ath9k_htc_priv *priv = hw->priv;
 	struct ath_hw *ah = priv->ah;
 	struct ath_common *common = ath9k_hw_common(ah);
-	struct ieee80211_channel *curchan = hw->conf.channel;
+	struct ieee80211_channel *curchan = hw->conf.chandef.chan;
 	struct ath9k_channel *init_channel;
 	int ret = 0;
 	enum htc_phymode mode;
@@ -1193,15 +1193,17 @@ static int ath9k_htc_config(struct ieee80211_hw *hw, u32 changed)
 	}
 
 	if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) || chip_reset) {
-		struct ieee80211_channel *curchan = hw->conf.channel;
+		struct ieee80211_channel *curchan = hw->conf.chandef.chan;
+		enum nl80211_channel_type channel_type =
+			cfg80211_get_chandef_type(&hw->conf.chandef);
 		int pos = curchan->hw_value;
 
 		ath_dbg(common, CONFIG, "Set channel: %d MHz\n",
 			curchan->center_freq);
 
 		ath9k_cmn_update_ichannel(&priv->ah->channels[pos],
-					  hw->conf.channel,
-					  hw->conf.channel_type);
+					  hw->conf.chandef.chan,
+					  channel_type);
 
 		if (ath9k_htc_set_channel(priv, hw, &priv->ah->channels[pos]) < 0) {
 			ath_err(common, "Unable to set channel\n");
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
index 3ad1fd05c5e..306c55019e7 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
@@ -490,7 +490,7 @@ static void ath9k_htc_tx_process(struct ath9k_htc_priv *priv,
 		if (txs->ts_flags & ATH9K_HTC_TXSTAT_SGI)
 			rate->flags |= IEEE80211_TX_RC_SHORT_GI;
 	} else {
-		if (cur_conf->channel->band == IEEE80211_BAND_5GHZ)
+		if (cur_conf->chandef.chan->band == IEEE80211_BAND_5GHZ)
 			rate->idx += 4; /* No CCK rates */
 	}
 
@@ -939,7 +939,7 @@ static void ath9k_process_rate(struct ieee80211_hw *hw,
 		return;
 	}
 
-	band = hw->conf.channel->band;
+	band = hw->conf.chandef.chan->band;
 	sband = hw->wiphy->bands[band];
 
 	for (i = 0; i < sband->n_bitrates; i++) {
@@ -1078,8 +1078,8 @@ static bool ath9k_rx_prepare(struct ath9k_htc_priv *priv,
 		priv->ah->stats.avgbrssi = rxbuf->rxstatus.rs_rssi;
 
 	rx_status->mactime = be64_to_cpu(rxbuf->rxstatus.rs_tstamp);
-	rx_status->band = hw->conf.channel->band;
-	rx_status->freq = hw->conf.channel->center_freq;
+	rx_status->band = hw->conf.chandef.chan->band;
+	rx_status->freq = hw->conf.chandef.chan->center_freq;
 	rx_status->signal =  rxbuf->rxstatus.rs_rssi + ATH_DEFAULT_NOISE_FLOOR;
 	rx_status->antenna = rxbuf->rxstatus.rs_antenna;
 	rx_status->flag |= RX_FLAG_MACTIME_END;
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 2a2ae403e0e..d5e6a38fe74 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -139,7 +139,7 @@ static void ath9k_hw_set_clockrate(struct ath_hw *ah)
 		clockrate = 117;
 	else if (!ah->curchan) /* should really check for CCK instead */
 		clockrate = ATH9K_CLOCK_RATE_CCK;
-	else if (conf->channel->band == IEEE80211_BAND_2GHZ)
+	else if (conf->chandef.chan->band == IEEE80211_BAND_2GHZ)
 		clockrate = ATH9K_CLOCK_RATE_2GHZ_OFDM;
 	else if (ah->caps.hw_caps & ATH9K_HW_CAP_FASTCLOCK)
 		clockrate = ATH9K_CLOCK_FAST_RATE_5GHZ_OFDM;
@@ -1110,7 +1110,8 @@ void ath9k_hw_init_global_settings(struct ath_hw *ah)
 	 * BA frames in some implementations, but it has been found to fix ACK
 	 * timeout issues in other cases as well.
 	 */
-	if (conf->channel && conf->channel->band == IEEE80211_BAND_2GHZ &&
+	if (conf->chandef.chan &&
+	    conf->chandef.chan->band == IEEE80211_BAND_2GHZ &&
 	    !IS_CHAN_HALF_RATE(chan) && !IS_CHAN_QUARTER_RATE(chan)) {
 		acktimeout += 64 - sifstime - ah->slottime;
 		ctstimeout += 48 - sifstime - ah->slottime;
diff --git a/drivers/net/wireless/ath/ath9k/link.c b/drivers/net/wireless/ath/ath9k/link.c
index ade3afb21f9..b1433f561cd 100644
--- a/drivers/net/wireless/ath/ath9k/link.c
+++ b/drivers/net/wireless/ath/ath9k/link.c
@@ -213,7 +213,7 @@ static bool ath_paprd_send_frame(struct ath_softc *sc, struct sk_buff *skb, int
 	txctl.txq = sc->tx.txq_map[IEEE80211_AC_BE];
 
 	memset(tx_info, 0, sizeof(*tx_info));
-	tx_info->band = hw->conf.channel->band;
+	tx_info->band = hw->conf.chandef.chan->band;
 	tx_info->flags |= IEEE80211_TX_CTL_NO_ACK;
 	tx_info->control.rates[0].idx = 0;
 	tx_info->control.rates[0].count = 1;
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 24650fd4169..f984a03f912 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -585,7 +585,7 @@ static int ath9k_start(struct ieee80211_hw *hw)
 	struct ath_softc *sc = hw->priv;
 	struct ath_hw *ah = sc->sc_ah;
 	struct ath_common *common = ath9k_hw_common(ah);
-	struct ieee80211_channel *curchan = hw->conf.channel;
+	struct ieee80211_channel *curchan = hw->conf.chandef.chan;
 	struct ath9k_channel *init_channel;
 	int r;
 
@@ -1184,7 +1184,9 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
 	}
 
 	if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) || reset_channel) {
-		struct ieee80211_channel *curchan = hw->conf.channel;
+		struct ieee80211_channel *curchan = hw->conf.chandef.chan;
+		enum nl80211_channel_type channel_type =
+			cfg80211_get_chandef_type(&conf->chandef);
 		int pos = curchan->hw_value;
 		int old_pos = -1;
 		unsigned long flags;
@@ -1193,7 +1195,7 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
 			old_pos = ah->curchan - &ah->channels[0];
 
 		ath_dbg(common, CONFIG, "Set channel: %d MHz type: %d\n",
-			curchan->center_freq, conf->channel_type);
+			curchan->center_freq, channel_type);
 
 		/* update survey stats for the old channel before switching */
 		spin_lock_irqsave(&common->cc_lock, flags);
@@ -1208,7 +1210,7 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
 			ath9k_hw_getnf(ah, ah->curchan);
 
 		ath9k_cmn_update_ichannel(&sc->sc_ah->channels[pos],
-					  curchan, conf->channel_type);
+					  curchan, channel_type);
 
 		/*
 		 * If the operating channel changes, change the survey in-use flags
diff --git a/drivers/net/wireless/ath/ath9k/rc.c b/drivers/net/wireless/ath/ath9k/rc.c
index 96ac433ba7f..aa4d368d8d3 100644
--- a/drivers/net/wireless/ath/ath9k/rc.c
+++ b/drivers/net/wireless/ath/ath9k/rc.c
@@ -814,7 +814,7 @@ static void ath_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
 	 * So, set fourth rate in series to be same as third one for
 	 * above conditions.
 	 */
-	if ((sc->hw->conf.channel->band == IEEE80211_BAND_2GHZ) &&
+	if ((sc->hw->conf.chandef.chan->band == IEEE80211_BAND_2GHZ) &&
 	    (conf_is_ht(&sc->hw->conf))) {
 		u8 dot11rate = rate_table->info[rix].dot11rate;
 		u8 phy = rate_table->info[rix].phy;
@@ -1328,7 +1328,7 @@ static void ath_rate_update(void *priv, struct ieee80211_supported_band *sband,
 
 		ath_dbg(ath9k_hw_common(sc->sc_ah), CONFIG,
 			"Operating HT Bandwidth changed to: %d\n",
-			sc->hw->conf.channel_type);
+			cfg80211_get_chandef_type(&sc->hw->conf.chandef));
 	}
 }
 
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index ee156e54314..c90ca57e372 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -859,7 +859,7 @@ static int ath9k_process_rate(struct ath_common *common,
 	unsigned int i = 0;
 	struct ath_softc __maybe_unused *sc = common->priv;
 
-	band = hw->conf.channel->band;
+	band = hw->conf.chandef.chan->band;
 	sband = hw->wiphy->bands[band];
 
 	if (rx_stats->