wifi: mac80211: move filter reconfig to wiphy work

This again is intended for future cleanups that are
possible when mac80211 and drivers can assume the
wiphy is locked.
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

net/mac80211/ieee80211_i.h

@@ -1368,7 +1368,7 @@ struct ieee80211_local {
 	spinlock_t filter_lock;
 
 	/* used for uploading changed mc list */
-	struct work_struct reconfig_filter;
+	struct wiphy_work reconfig_filter;
 
 	/* aggregated multicast list */
 	struct netdev_hw_addr_list mc_list;

net/mac80211/iface.c

@@ -778,7 +778,7 @@ static void ieee80211_set_multicast_list(struct net_device *dev)
 	spin_lock_bh(&local->filter_lock);
 	__hw_addr_sync(&local->mc_list, &dev->mc, dev->addr_len);
 	spin_unlock_bh(&local->filter_lock);
-	ieee80211_queue_work(&local->hw, &local->reconfig_filter);
+	wiphy_work_queue(local->hw.wiphy, &local->reconfig_filter);
 }
 
 /*

net/mac80211/main.c

@@ -84,7 +84,8 @@ void ieee80211_configure_filter(struct ieee80211_local *local)
 	local->filter_flags = new_flags & ~(1<<31);
 }
 
-static void ieee80211_reconfig_filter(struct work_struct *work)
+static void ieee80211_reconfig_filter(struct wiphy *wiphy,
+				      struct wiphy_work *work)
 {
 	struct ieee80211_local *local =
 		container_of(work, struct ieee80211_local, reconfig_filter);
@@ -835,7 +836,7 @@ struct ieee80211_hw *ieee80211_alloc_hw_nm(size_t priv_data_len,
 	wiphy_work_init(&local->radar_detected_work,
 			ieee80211_dfs_radar_detected_work);
 
-	INIT_WORK(&local->reconfig_filter, ieee80211_reconfig_filter);
+	wiphy_work_init(&local->reconfig_filter, ieee80211_reconfig_filter);
 	local->smps_mode = IEEE80211_SMPS_OFF;
 
 	wiphy_work_init(&local->dynamic_ps_enable_work,
@@ -1503,13 +1504,13 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw)
 
 	wiphy_lock(local->hw.wiphy);
 	wiphy_delayed_work_cancel(local->hw.wiphy, &local->roc_work);
+	wiphy_work_cancel(local->hw.wiphy, &local->reconfig_filter);
 	wiphy_work_cancel(local->hw.wiphy, &local->sched_scan_stopped_work);
 	wiphy_work_cancel(local->hw.wiphy, &local->radar_detected_work);
 	wiphy_unlock(local->hw.wiphy);
 	rtnl_unlock();
 
 	cancel_work_sync(&local->restart_work);
-	cancel_work_sync(&local->reconfig_filter);
 
 	ieee80211_clear_tx_pending(local);
 	rate_control_deinitialize(local);

net/mac80211/util.c

@@ -2316,7 +2316,7 @@ void ieee80211_stop_device(struct ieee80211_local *local)
 	ieee80211_led_radio(local, false);
 	ieee80211_mod_tpt_led_trig(local, 0, IEEE80211_TPT_LEDTRIG_FL_RADIO);
 
-	cancel_work_sync(&local->reconfig_filter);
+	wiphy_work_cancel(local->hw.wiphy, &local->reconfig_filter);
 
 	flush_workqueue(local->workqueue);
 	wiphy_work_flush(local->hw.wiphy, NULL);