mac80211: merge reconfig assign chanctx code

Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

net/mac80211/util.c

@@ -1357,6 +1357,25 @@ void ieee80211_stop_device(struct ieee80211_local *local)
 	drv_stop(local);
 }
 
+static void ieee80211_assign_chanctx(struct ieee80211_local *local,
+				     struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_chanctx_conf *conf;
+	struct ieee80211_chanctx *ctx;
+
+	if (!local->use_chanctx)
+		return;
+
+	mutex_lock(&local->chanctx_mtx);
+	conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
+					 lockdep_is_held(&local->chanctx_mtx));
+	if (conf) {
+		ctx = container_of(conf, struct ieee80211_chanctx, conf);
+		drv_assign_vif_chanctx(local, sdata, ctx);
+	}
+	mutex_unlock(&local->chanctx_mtx);
+}
+
 int ieee80211_reconfig(struct ieee80211_local *local)
 {
 	struct ieee80211_hw *hw = &local->hw;
@@ -1445,36 +1464,14 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 	}
 
 	list_for_each_entry(sdata, &local->interfaces, list) {
-		struct ieee80211_chanctx_conf *ctx_conf;
-
 		if (!ieee80211_sdata_running(sdata))
 			continue;
-
-		mutex_lock(&local->chanctx_mtx);
-		ctx_conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
-				lockdep_is_held(&local->chanctx_mtx));
-		if (ctx_conf) {
-			ctx = container_of(ctx_conf, struct ieee80211_chanctx,
-					   conf);
-			drv_assign_vif_chanctx(local, sdata, ctx);
-		}
-		mutex_unlock(&local->chanctx_mtx);
+		ieee80211_assign_chanctx(local, sdata);
 	}
 
 	sdata = rtnl_dereference(local->monitor_sdata);
-	if (sdata && local->use_chanctx && ieee80211_sdata_running(sdata)) {
-		struct ieee80211_chanctx_conf *ctx_conf;
-
-		mutex_lock(&local->chanctx_mtx);
-		ctx_conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
-				lockdep_is_held(&local->chanctx_mtx));
-		if (ctx_conf) {
-			ctx = container_of(ctx_conf, struct ieee80211_chanctx,
-					   conf);
-			drv_assign_vif_chanctx(local, sdata, ctx);
-		}
-		mutex_unlock(&local->chanctx_mtx);
-	}
+	if (sdata && ieee80211_sdata_running(sdata))
+		ieee80211_assign_chanctx(local, sdata);
 
 	/* add STAs back */
 	mutex_lock(&local->sta_mtx);