mac80211: convert to channel definition struct

Convert mac80211 (and where necessary, some drivers a
little bit) to the new channel definition struct.

This will allow extending mac80211 for VHT, which is
currently restricted to channel contexts since there
are no drivers using that which makes it easier. As
I also don't care about VHT for drivers not using the
channel context API, I won't convert the previous API
to VHT support.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 14 insertions, 27 deletions

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 7136b945798e..b9702d16d608 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -615,7 +615,7 @@ do_survey:
 	rcu_read_lock();
 	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
 	if (chanctx_conf)
-		channel = chanctx_conf->channel;
+		channel = chanctx_conf->def.chan;
 	else
 		channel = NULL;
 	rcu_read_unlock();
@@ -739,13 +739,9 @@ static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
 {
 	struct ieee80211_local *local = wiphy_priv(wiphy);
 	struct ieee80211_sub_if_data *sdata;
-	enum nl80211_channel_type channel_type;
 	int ret = 0;
 
-	channel_type = cfg80211_get_chandef_type(chandef);
-
-	if (local->monitor_channel == chandef->chan &&
-	    local->monitor_channel_type == channel_type)
+	if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
 		return 0;
 
 	mutex_lock(&local->iflist_mtx);
@@ -755,20 +751,17 @@ static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
 				lockdep_is_held(&local->iflist_mtx));
 		if (sdata) {
 			ieee80211_vif_release_channel(sdata);
-			ret = ieee80211_vif_use_channel(
-					sdata, chandef->chan, channel_type,
+			ret = ieee80211_vif_use_channel(sdata, chandef,
 					IEEE80211_CHANCTX_EXCLUSIVE);
 		}
 	} else if (local->open_count == local->monitors) {
 		local->_oper_channel = chandef->chan;
-		local->_oper_channel_type = channel_type;
+		local->_oper_channel_type = cfg80211_get_chandef_type(chandef);
 		ieee80211_hw_config(local, 0);
 	}
 
-	if (ret == 0) {
-		local->monitor_channel = chandef->chan;
-		local->monitor_channel_type = channel_type;
-	}
+	if (ret == 0)
+		local->monitor_chandef = *chandef;
 	mutex_unlock(&local->iflist_mtx);
 
 	return ret;
@@ -890,10 +883,8 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
 	sdata->smps_mode = IEEE80211_SMPS_OFF;
 	sdata->needed_rx_chains = sdata->local->rx_chains;
 
-	err = ieee80211_vif_use_channel(
-		sdata, params->chandef.chan,
-		cfg80211_get_chandef_type(&params->chandef),
-		IEEE80211_CHANCTX_SHARED);
+	err = ieee80211_vif_use_channel(sdata, &params->chandef,
+					IEEE80211_CHANCTX_SHARED);
 	if (err)
 		return err;
 
@@ -1710,10 +1701,8 @@ static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
 	sdata->smps_mode = IEEE80211_SMPS_OFF;
 	sdata->needed_rx_chains = sdata->local->rx_chains;
 
-	err = ieee80211_vif_use_channel(
-		sdata, setup->chandef.chan,
-		cfg80211_get_chandef_type(&setup->chandef),
-		IEEE80211_CHANCTX_SHARED);
+	err = ieee80211_vif_use_channel(sdata, &setup->chandef,
+					IEEE80211_CHANCTX_SHARED);
 	if (err)
 		return err;
 
@@ -2133,7 +2122,7 @@ int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
 	 * the new value until we associate.
 	 */
 	if (!sdata->u.mgd.associated ||
-	    sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT)
+	    sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
 		return 0;
 
 	ap = sdata->u.mgd.associated->bssid;
@@ -2589,7 +2578,7 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 		chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
 
 		if (chanctx_conf)
-			need_offchan = chan != chanctx_conf->channel;
+			need_offchan = chan != chanctx_conf->def.chan;
 		else
 			need_offchan = true;
 		rcu_read_unlock();
@@ -3057,7 +3046,7 @@ static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
 		rcu_read_unlock();
 		return -EINVAL;
 	}
-	band = chanctx_conf->channel->band;
+	band = chanctx_conf->def.chan->band;
 	sta = sta_info_get(sdata, peer);
 	if (sta) {
 		qos = test_sta_flag(sta, WLAN_STA_WME);
@@ -3125,9 +3114,7 @@ static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
 	rcu_read_lock();
 	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
 	if (chanctx_conf) {
-		cfg80211_chandef_create(chandef,
-					chanctx_conf->channel,
-					chanctx_conf->channel_type);
+		*chandef = chanctx_conf->def;
 		ret = 0;
 	}
 	rcu_read_unlock();