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, 15 insertions, 11 deletions

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 2cec14cc02d1..d2a4f78b4b0f 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -191,17 +191,19 @@ static u32 ieee80211_config_ht_tx(struct ieee80211_sub_if_data *sdata,
                 rcu_read_unlock();
                 return 0;
         }
-        chan = chanctx_conf->channel;
+        chan = chanctx_conf->def.chan;
         rcu_read_unlock();
         sband = local->hw.wiphy->bands[chan->band];
 
-        switch (sdata->vif.bss_conf.channel_type) {
-        case NL80211_CHAN_HT40PLUS:
-                if (chan->flags & IEEE80211_CHAN_NO_HT40PLUS)
+        switch (sdata->vif.bss_conf.chandef.width) {
+        case NL80211_CHAN_WIDTH_40:
+                if (sdata->vif.bss_conf.chandef.chan->center_freq >
+                                sdata->vif.bss_conf.chandef.center_freq1 &&
+                    chan->flags & IEEE80211_CHAN_NO_HT40PLUS)
                         disable_40 = true;
-                break;
-        case NL80211_CHAN_HT40MINUS:
-                if (chan->flags & IEEE80211_CHAN_NO_HT40MINUS)
+                if (sdata->vif.bss_conf.chandef.chan->center_freq <
+                                sdata->vif.bss_conf.chandef.center_freq1 &&
+                    chan->flags & IEEE80211_CHAN_NO_HT40MINUS)
                         disable_40 = true;
                 break;
         default:
@@ -381,7 +383,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
                 rcu_read_unlock();
                 return;
         }
-        chan = chanctx_conf->channel;
+        chan = chanctx_conf->def.chan;
         rcu_read_unlock();
         sband = local->hw.wiphy->bands[chan->band];
 
@@ -2476,11 +2478,11 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
                 return;
         }
 
-        if (rx_status->freq != chanctx_conf->channel->center_freq) {
+        if (rx_status->freq != chanctx_conf->def.chan->center_freq) {
                 rcu_read_unlock();
                 return;
         }
-        chan = chanctx_conf->channel;
+        chan = chanctx_conf->def.chan;
         rcu_read_unlock();
 
         if (ifmgd->assoc_data && !ifmgd->assoc_data->have_beacon &&
@@ -3191,6 +3193,7 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata,
         const u8 *ht_oper_ie;
         const struct ieee80211_ht_operation *ht_oper = NULL;
         struct ieee80211_supported_band *sband;
+        struct cfg80211_chan_def chandef;
 
         sband = local->hw.wiphy->bands[cbss->channel->band];
 
@@ -3277,7 +3280,8 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata,
         sdata->smps_mode = IEEE80211_SMPS_OFF;
 
         ieee80211_vif_release_channel(sdata);
-        return ieee80211_vif_use_channel(sdata, cbss->channel, channel_type,
+        cfg80211_chandef_create(&chandef, cbss->channel, channel_type);
+        return ieee80211_vif_use_channel(sdata, &chandef,
                                          IEEE80211_CHANCTX_SHARED);
 }