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-rw-r--r--net/mac80211/iface.c48
1 files changed, 23 insertions, 25 deletions
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 09a80b5..8be854e 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -207,17 +207,8 @@ void ieee80211_recalc_idle(struct ieee80211_local *local)
static int ieee80211_change_mtu(struct net_device *dev, int new_mtu)
{
- int meshhdrlen;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- meshhdrlen = (sdata->vif.type == NL80211_IFTYPE_MESH_POINT) ? 5 : 0;
-
- /* FIX: what would be proper limits for MTU?
- * This interface uses 802.3 frames. */
- if (new_mtu < 256 ||
- new_mtu > IEEE80211_MAX_DATA_LEN - 24 - 6 - meshhdrlen) {
+ if (new_mtu < 256 || new_mtu > IEEE80211_MAX_DATA_LEN)
return -EINVAL;
- }
dev->mtu = new_mtu;
return 0;
@@ -586,11 +577,13 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
switch (sdata->vif.type) {
case NL80211_IFTYPE_AP_VLAN:
- /* no need to tell driver, but set carrier */
- if (rtnl_dereference(sdata->bss->beacon))
+ /* no need to tell driver, but set carrier and chanctx */
+ if (rtnl_dereference(sdata->bss->beacon)) {
+ ieee80211_vif_vlan_copy_chanctx(sdata);
netif_carrier_on(dev);
- else
+ } else {
netif_carrier_off(dev);
+ }
break;
case NL80211_IFTYPE_MONITOR:
if (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES) {
@@ -839,6 +832,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
switch (sdata->vif.type) {
case NL80211_IFTYPE_AP_VLAN:
list_del(&sdata->u.vlan.list);
+ rcu_assign_pointer(sdata->vif.chanctx_conf, NULL);
/* no need to tell driver */
break;
case NL80211_IFTYPE_MONITOR:
@@ -865,20 +859,11 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
cancel_work_sync(&sdata->work);
/*
* When we get here, the interface is marked down.
- * Call rcu_barrier() to wait both for the RX path
+ * Call synchronize_rcu() to wait for the RX path
* should it be using the interface and enqueuing
- * frames at this very time on another CPU, and
- * for the sta free call_rcu callbacks.
- */
- rcu_barrier();
-
- /*
- * free_sta_rcu() enqueues a work for the actual
- * sta cleanup, so we need to flush it while
- * sdata is still valid.
+ * frames at this very time on another CPU.
*/
- flush_workqueue(local->workqueue);
-
+ synchronize_rcu();
skb_queue_purge(&sdata->skb_queue);
/*
@@ -1498,6 +1483,15 @@ static void ieee80211_assign_perm_addr(struct ieee80211_local *local,
mutex_unlock(&local->iflist_mtx);
}
+static void ieee80211_cleanup_sdata_stas_wk(struct work_struct *wk)
+{
+ struct ieee80211_sub_if_data *sdata;
+
+ sdata = container_of(wk, struct ieee80211_sub_if_data, cleanup_stations_wk);
+
+ ieee80211_cleanup_sdata_stas(sdata);
+}
+
int ieee80211_if_add(struct ieee80211_local *local, const char *name,
struct wireless_dev **new_wdev, enum nl80211_iftype type,
struct vif_params *params)
@@ -1573,6 +1567,10 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name,
INIT_LIST_HEAD(&sdata->key_list);
+ spin_lock_init(&sdata->cleanup_stations_lock);
+ INIT_LIST_HEAD(&sdata->cleanup_stations);
+ INIT_WORK(&sdata->cleanup_stations_wk, ieee80211_cleanup_sdata_stas_wk);
+
for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
struct ieee80211_supported_band *sband;
sband = local->hw.wiphy->bands[i];
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