1 files changed, 6 insertions, 54 deletions

diff --git a/net/wireless/util.c b/net/wireless/util.c
index 240c68baa3d1..27e8a2f52f04 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -106,33 +106,6 @@ u32 ieee80211_channel_to_freq_khz(int chan, enum nl80211_band band)
 }
 EXPORT_SYMBOL(ieee80211_channel_to_freq_khz);
 
-enum nl80211_chan_width
-ieee80211_s1g_channel_width(const struct ieee80211_channel *chan)
-{
-	if (WARN_ON(!chan || chan->band != NL80211_BAND_S1GHZ))
-		return NL80211_CHAN_WIDTH_20_NOHT;
-
-	/*S1G defines a single allowed channel width per channel.
-	 * Extract that width here.
-	 */
-	if (chan->flags & IEEE80211_CHAN_1MHZ)
-		return NL80211_CHAN_WIDTH_1;
-	else if (chan->flags & IEEE80211_CHAN_2MHZ)
-		return NL80211_CHAN_WIDTH_2;
-	else if (chan->flags & IEEE80211_CHAN_4MHZ)
-		return NL80211_CHAN_WIDTH_4;
-	else if (chan->flags & IEEE80211_CHAN_8MHZ)
-		return NL80211_CHAN_WIDTH_8;
-	else if (chan->flags & IEEE80211_CHAN_16MHZ)
-		return NL80211_CHAN_WIDTH_16;
-
-	pr_err("unknown channel width for channel at %dKHz?\n",
-	       ieee80211_channel_to_khz(chan));
-
-	return NL80211_CHAN_WIDTH_1;
-}
-EXPORT_SYMBOL(ieee80211_s1g_channel_width);
-
 int ieee80211_freq_khz_to_channel(u32 freq)
 {
 	/* TODO: just handle MHz for now */
@@ -1230,28 +1203,7 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
 		dev->ieee80211_ptr->use_4addr = false;
 		rdev_set_qos_map(rdev, dev, NULL);
 
-		switch (otype) {
-		case NL80211_IFTYPE_AP:
-		case NL80211_IFTYPE_P2P_GO:
-			cfg80211_stop_ap(rdev, dev, -1, true);
-			break;
-		case NL80211_IFTYPE_ADHOC:
-			cfg80211_leave_ibss(rdev, dev, false);
-			break;
-		case NL80211_IFTYPE_STATION:
-		case NL80211_IFTYPE_P2P_CLIENT:
-			cfg80211_disconnect(rdev, dev,
-					    WLAN_REASON_DEAUTH_LEAVING, true);
-			break;
-		case NL80211_IFTYPE_MESH_POINT:
-			/* mesh should be handled? */
-			break;
-		case NL80211_IFTYPE_OCB:
-			cfg80211_leave_ocb(rdev, dev);
-			break;
-		default:
-			break;
-		}
+		cfg80211_leave(rdev, dev->ieee80211_ptr);
 
 		cfg80211_process_rdev_events(rdev);
 		cfg80211_mlme_purge_registrations(dev->ieee80211_ptr);
@@ -2584,7 +2536,7 @@ int cfg80211_get_radio_idx_by_chan(struct wiphy *wiphy,
 		}
 	}
 
-	return -ENOENT;
+	return -EINVAL;
 }
 EXPORT_SYMBOL(cfg80211_get_radio_idx_by_chan);
 
@@ -2969,9 +2921,8 @@ cfg80211_get_iftype_ext_capa(struct wiphy *wiphy, enum nl80211_iftype type)
 }
 EXPORT_SYMBOL(cfg80211_get_iftype_ext_capa);
 
-static bool
-ieee80211_radio_freq_range_valid(const struct wiphy_radio *radio,
-				 u32 freq, u32 width)
+bool ieee80211_radio_freq_range_valid(const struct wiphy_radio *radio,
+				      u32 freq, u32 width)
 {
 	const struct wiphy_radio_freq_range *r;
 	int i;
@@ -2985,6 +2936,7 @@ ieee80211_radio_freq_range_valid(const struct wiphy_radio *radio,
 
 	return false;
 }
+EXPORT_SYMBOL(ieee80211_radio_freq_range_valid);
 
 bool cfg80211_radio_chandef_valid(const struct wiphy_radio *radio,
 				  const struct cfg80211_chan_def *chandef)
@@ -2992,7 +2944,7 @@ bool cfg80211_radio_chandef_valid(const struct wiphy_radio *radio,
 	u32 freq, width;
 
 	freq = ieee80211_chandef_to_khz(chandef);
-	width = cfg80211_chandef_get_width(chandef);
+	width = MHZ_TO_KHZ(cfg80211_chandef_get_width(chandef));
 	if (!ieee80211_radio_freq_range_valid(radio, freq, width))
 		return false;