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, 11 insertions, 17 deletions

diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 943694a..1bf03f9 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -76,7 +76,7 @@ bool mesh_matches_local(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 	struct ieee80211_local *local = sdata->local;
 	u32 basic_rates = 0;
-	enum nl80211_channel_type sta_channel_type = NL80211_CHAN_NO_HT;
+	struct cfg80211_chan_def sta_chan_def;
 
 	/*
 	 * As support for each feature is added, check for matching
@@ -103,17 +103,11 @@ bool mesh_matches_local(struct ieee80211_sub_if_data *sdata,
 	if (sdata->vif.bss_conf.basic_rates != basic_rates)
 		goto mismatch;
 
-	if (ie->ht_operation)
-		sta_channel_type =
-			ieee80211_ht_oper_to_channel_type(ie->ht_operation);
-
-	/* Disallow HT40+/- mismatch */
-	if (ie->ht_operation &&
-	    (sdata->vif.bss_conf.channel_type == NL80211_CHAN_HT40MINUS ||
-	     sdata->vif.bss_conf.channel_type == NL80211_CHAN_HT40PLUS) &&
-	    (sta_channel_type == NL80211_CHAN_HT40MINUS ||
-	     sta_channel_type == NL80211_CHAN_HT40PLUS) &&
-	    sdata->vif.bss_conf.channel_type != sta_channel_type)
+	ieee80211_ht_oper_to_chandef(sdata->vif.bss_conf.chandef.chan,
+				     ie->ht_operation, &sta_chan_def);
+
+	if (!cfg80211_chandef_compatible(&sdata->vif.bss_conf.chandef,
+					 &sta_chan_def))
 		goto mismatch;
 
 	return true;
@@ -368,7 +362,7 @@ int mesh_add_ds_params_ie(struct sk_buff *skb,
 		rcu_read_unlock();
 		return -EINVAL;
 	}
-	chan = chanctx_conf->channel;
+	chan = chanctx_conf->def.chan;
 	rcu_read_unlock();
 
 	sband = local->hw.wiphy->bands[chan->band];
@@ -392,7 +386,7 @@ int mesh_add_ht_cap_ie(struct sk_buff *skb,
 
 	sband = local->hw.wiphy->bands[band];
 	if (!sband->ht_cap.ht_supported ||
-	    sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT)
+	    sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
 		return 0;
 
 	if (skb_tailroom(skb) < 2 + sizeof(struct ieee80211_ht_cap))
@@ -411,7 +405,7 @@ int mesh_add_ht_oper_ie(struct sk_buff *skb,
 	struct ieee80211_chanctx_conf *chanctx_conf;
 	struct ieee80211_channel *channel;
 	enum nl80211_channel_type channel_type =
-		sdata->vif.bss_conf.channel_type;
+		cfg80211_get_chandef_type(&sdata->vif.bss_conf.chandef);
 	struct ieee80211_supported_band *sband;
 	struct ieee80211_sta_ht_cap *ht_cap;
 	u8 *pos;
@@ -422,7 +416,7 @@ int mesh_add_ht_oper_ie(struct sk_buff *skb,
 		rcu_read_unlock();
 		return -EINVAL;
 	}
-	channel = chanctx_conf->channel;
+	channel = chanctx_conf->def.chan;
 	rcu_read_unlock();
 
 	sband = local->hw.wiphy->bands[channel->band];
@@ -435,7 +429,7 @@ int mesh_add_ht_oper_ie(struct sk_buff *skb,
 		return -ENOMEM;
 
 	pos = skb_put(skb, 2 + sizeof(struct ieee80211_ht_operation));
-	ieee80211_ie_build_ht_oper(pos, ht_cap, channel, channel_type,
+	ieee80211_ie_build_ht_oper(pos, ht_cap, &sdata->vif.bss_conf.chandef,
 				   sdata->vif.bss_conf.ht_operation_mode);
 
 	return 0;