wifi: cfg80211: remove scan_width support

There really isn't any support for scanning at different
channel widths than 20 MHz since there's no way to set it.
Remove this support for now, if somebody wants to maintain
this whole thing later we can revisit how it should work.

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

1 files changed, 6 insertions, 24 deletions

diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 9907cea6457c..55ec34602b53 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -377,7 +377,6 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 		  round_jiffies(jiffies + IEEE80211_IBSS_MERGE_INTERVAL));
 
 	bss_meta.chan = chan;
-	bss_meta.scan_width = cfg80211_chandef_to_scan_width(&chandef);
 	bss = cfg80211_inform_bss_frame_data(local->hw.wiphy, &bss_meta, mgmt,
 					     presp->head_len, GFP_KERNEL);
 
@@ -595,7 +594,6 @@ ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, const u8 *bssid,
 	struct sta_info *sta;
 	struct ieee80211_chanctx_conf *chanctx_conf;
 	struct ieee80211_supported_band *sband;
-	enum nl80211_bss_scan_width scan_width;
 	int band;
 
 	/*
@@ -624,7 +622,6 @@ ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, const u8 *bssid,
 	if (WARN_ON_ONCE(!chanctx_conf))
 		return NULL;
 	band = chanctx_conf->def.chan->band;
-	scan_width = cfg80211_chandef_to_scan_width(&chanctx_conf->def);
 	rcu_read_unlock();
 
 	sta = sta_info_alloc(sdata, addr, GFP_KERNEL);
@@ -636,7 +633,7 @@ ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, const u8 *bssid,
 	/* make sure mandatory rates are always added */
 	sband = local->hw.wiphy->bands[band];
 	sta->sta.deflink.supp_rates[band] = supp_rates |
-			ieee80211_mandatory_rates(sband, scan_width);
+			ieee80211_mandatory_rates(sband);
 
 	return ieee80211_ibss_finish_sta(sta);
 }
@@ -975,7 +972,6 @@ static void ieee80211_update_sta_info(struct ieee80211_sub_if_data *sdata,
 {
 	struct sta_info *sta;
 	enum nl80211_band band = rx_status->band;
-	enum nl80211_bss_scan_width scan_width;
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_supported_band *sband;
 	bool rates_updated = false;
@@ -1001,15 +997,9 @@ static void ieee80211_update_sta_info(struct ieee80211_sub_if_data *sdata,
 			u32 prev_rates;
 
 			prev_rates = sta->sta.deflink.supp_rates[band];
-			/* make sure mandatory rates are always added */
-			scan_width = NL80211_BSS_CHAN_WIDTH_20;
-			if (rx_status->bw == RATE_INFO_BW_5)
-				scan_width = NL80211_BSS_CHAN_WIDTH_5;
-			else if (rx_status->bw == RATE_INFO_BW_10)
-				scan_width = NL80211_BSS_CHAN_WIDTH_10;
 
 			sta->sta.deflink.supp_rates[band] = supp_rates |
-				ieee80211_mandatory_rates(sband, scan_width);
+				ieee80211_mandatory_rates(sband);
 			if (sta->sta.deflink.supp_rates[band] != prev_rates) {
 				ibss_dbg(sdata,
 					 "updated supp_rates set for %pM based on beacon/probe_resp (0x%x -> 0x%x)\n",
@@ -1196,7 +1186,6 @@ void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
 	struct sta_info *sta;
 	struct ieee80211_chanctx_conf *chanctx_conf;
 	struct ieee80211_supported_band *sband;
-	enum nl80211_bss_scan_width scan_width;
 	int band;
 
 	/*
@@ -1222,7 +1211,6 @@ void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
 		return;
 	}
 	band = chanctx_conf->def.chan->band;
-	scan_width = cfg80211_chandef_to_scan_width(&chanctx_conf->def);
 	rcu_read_unlock();
 
 	sta = sta_info_alloc(sdata, addr, GFP_ATOMIC);
@@ -1232,7 +1220,7 @@ void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
 	/* make sure mandatory rates are always added */
 	sband = local->hw.wiphy->bands[band];
 	sta->sta.deflink.supp_rates[band] = supp_rates |
-			ieee80211_mandatory_rates(sband, scan_width);
+			ieee80211_mandatory_rates(sband);
 
 	spin_lock(&ifibss->incomplete_lock);
 	list_add(&sta->list, &ifibss->incomplete_stations);
@@ -1282,7 +1270,6 @@ static void ieee80211_ibss_sta_expire(struct ieee80211_sub_if_data *sdata)
 static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
-	enum nl80211_bss_scan_width scan_width;
 
 	lockdep_assert_wiphy(sdata->local->hw.wiphy);
 
@@ -1304,9 +1291,8 @@ static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata)
 	sdata_info(sdata,
 		   "No active IBSS STAs - trying to scan for other IBSS networks with same SSID (merge)\n");
 
-	scan_width = cfg80211_chandef_to_scan_width(&ifibss->chandef);
 	ieee80211_request_ibss_scan(sdata, ifibss->ssid, ifibss->ssid_len,
-				    NULL, 0, scan_width);
+				    NULL, 0);
 }
 
 static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
@@ -1424,7 +1410,6 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
 	struct cfg80211_bss *cbss;
 	struct ieee80211_channel *chan = NULL;
 	const u8 *bssid = NULL;
-	enum nl80211_bss_scan_width scan_width;
 	int active_ibss;
 
 	lockdep_assert_wiphy(sdata->local->hw.wiphy);
@@ -1483,8 +1468,6 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
 
 		sdata_info(sdata, "Trigger new scan to find an IBSS to join\n");
 
-		scan_width = cfg80211_chandef_to_scan_width(&ifibss->chandef);
-
 		if (ifibss->fixed_channel) {
 			num = ieee80211_ibss_setup_scan_channels(local->hw.wiphy,
 								 &ifibss->chandef,
@@ -1492,11 +1475,10 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
 								 ARRAY_SIZE(channels));
 			ieee80211_request_ibss_scan(sdata, ifibss->ssid,
 						    ifibss->ssid_len, channels,
-						    num, scan_width);
+						    num);
 		} else {
 			ieee80211_request_ibss_scan(sdata, ifibss->ssid,
-						    ifibss->ssid_len, NULL,
-						    0, scan_width);
+						    ifibss->ssid_len, NULL, 0);
 		}
 	} else {
 		int interval = IEEE80211_SCAN_INTERVAL;