7 files changed, 73 insertions, 14 deletions

diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index b7cbd4ebf0e0..ba3cd284d104 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1267,6 +1267,7 @@ void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
                                   __le16 fc, bool acked);
+void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
 
 /* IBSS code */
 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 60f1ce5e5e52..ceef64426a8d 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -474,6 +474,9 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
                         master->control_port_protocol;
                 sdata->control_port_no_encrypt =
                         master->control_port_no_encrypt;
+                sdata->vif.cab_queue = master->vif.cab_queue;
+                memcpy(sdata->vif.hw_queue, master->vif.hw_queue,
+                       sizeof(sdata->vif.hw_queue));
                 break;
                 }
         case NL80211_IFTYPE_AP:
@@ -653,7 +656,11 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
 
         ieee80211_recalc_ps(local, -1);
 
-        if (dev) {
+        if (sdata->vif.type == NL80211_IFTYPE_MONITOR ||
+            sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {
+                /* XXX: for AP_VLAN, actually track AP queues */
+                netif_tx_start_all_queues(dev);
+        } else if (dev) {
                 unsigned long flags;
                 int n_acs = IEEE80211_NUM_ACS;
                 int ac;
@@ -1696,6 +1703,15 @@ void ieee80211_remove_interfaces(struct ieee80211_local *local)
 
         ASSERT_RTNL();
 
+        /*
+         * Close all AP_VLAN interfaces first, as otherwise they
+         * might be closed while the AP interface they belong to
+         * is closed, causing unregister_netdevice_many() to crash.
+         */
+        list_for_each_entry(sdata, &local->interfaces, list)
+                if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+                        dev_close(sdata->dev);
+
         mutex_lock(&local->iflist_mtx);
         list_for_each_entry_safe(sdata, tmp, &local->interfaces, list) {
                 list_del(&sdata->list);
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index ef378b9a32ec..1da3d6be8e11 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -3325,10 +3325,6 @@ static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata)
         if (WARN_ON_ONCE(!auth_data))
                 return -EINVAL;
 
-        if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
-                tx_flags = IEEE80211_TX_CTL_REQ_TX_STATUS |
-                           IEEE80211_TX_INTFL_MLME_CONN_TX;
-
         auth_data->tries++;
 
         if (auth_data->tries > IEEE80211_AUTH_MAX_TRIES) {
@@ -3362,6 +3358,10 @@ static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata)
                         auth_data->expected_transaction = trans;
                 }
 
+                if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
+                        tx_flags = IEEE80211_TX_CTL_REQ_TX_STATUS |
+                                   IEEE80211_TX_INTFL_MLME_CONN_TX;
+
                 ieee80211_send_auth(sdata, trans, auth_data->algorithm, status,
                                     auth_data->data, auth_data->data_len,
                                     auth_data->bss->bssid,
@@ -3385,12 +3385,12 @@ static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata)
                  * will not answer to direct packet in unassociated state.
                  */
                 ieee80211_send_probe_req(sdata, NULL, ssidie + 2, ssidie[1],
-                                         NULL, 0, (u32) -1, true, tx_flags,
+                                         NULL, 0, (u32) -1, true, 0,
                                          auth_data->bss->channel, false);
                 rcu_read_unlock();
         }
 
-        if (!(local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)) {
+        if (tx_flags == 0) {
                 auth_data->timeout = jiffies + IEEE80211_AUTH_TIMEOUT;
                 ifmgd->auth_data->timeout_started = true;
                 run_again(ifmgd, auth_data->timeout);
@@ -3643,6 +3643,31 @@ static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata)
         }
 }
 
+#ifdef CONFIG_PM
+void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata)
+{
+        struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+
+        mutex_lock(&ifmgd->mtx);
+        if (!ifmgd->associated) {
+                mutex_unlock(&ifmgd->mtx);
+                return;
+        }
+
+        if (sdata->flags & IEEE80211_SDATA_DISCONNECT_RESUME) {
+                sdata->flags &= ~IEEE80211_SDATA_DISCONNECT_RESUME;
+                mlme_dbg(sdata, "driver requested disconnect after resume\n");
+                ieee80211_sta_connection_lost(sdata,
+                                              ifmgd->associated->bssid,
+                                              WLAN_REASON_UNSPECIFIED,
+                                              true);
+                mutex_unlock(&ifmgd->mtx);
+                return;
+        }
+        mutex_unlock(&ifmgd->mtx);
+}
+#endif
+
 /* interface setup */
 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata)
 {
@@ -4349,7 +4374,7 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
         u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
         bool tx = !req->local_state_change;
-        bool sent_frame = false;
+        bool report_frame = false;
 
         mutex_lock(&ifmgd->mtx);
 
@@ -4366,7 +4391,7 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
                 ieee80211_destroy_auth_data(sdata, false);
                 mutex_unlock(&ifmgd->mtx);
 
-                sent_frame = tx;
+                report_frame = true;
                 goto out;
         }
 
@@ -4374,12 +4399,12 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
             ether_addr_equal(ifmgd->associated->bssid, req->bssid)) {
                 ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH,
                                        req->reason_code, tx, frame_buf);
-                sent_frame = tx;
+                report_frame = true;
         }
         mutex_unlock(&ifmgd->mtx);
 
  out:
-        if (sent_frame)
+        if (report_frame)
                 __cfg80211_send_deauth(sdata->dev, frame_buf,
                                        IEEE80211_DEAUTH_FRAME_LEN);
 
diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index 0d51877efdb7..d3f414fe67e0 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -688,8 +688,15 @@ int rate_control_set_rates(struct ieee80211_hw *hw,
                            struct ieee80211_sta *pubsta,
                            struct ieee80211_sta_rates *rates)
 {
-        struct ieee80211_sta_rates *old = rcu_dereference(pubsta->rates);
+        struct ieee80211_sta_rates *old;
 
+        /*
+         * mac80211 guarantees that this function will not be called
+         * concurrently, so the following RCU access is safe, even without
+         * extra locking. This can not be checked easily, so we just set
+         * the condition to true.
+         */
+        old = rcu_dereference_protected(pubsta->rates, true);
         rcu_assign_pointer(pubsta->rates, rates);
         if (old)
                 kfree_rcu(old, rcu_head);
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 7507f7cdd68c..bdd7b4a719e9 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -3054,6 +3054,9 @@ static int prepare_for_handlers(struct ieee80211_rx_data *rx,
                          * and location updates. Note that mac80211
                          * itself never looks at these frames.
                          */
+                        if (!multicast &&
+                            !ether_addr_equal(sdata->vif.addr, hdr->addr1))
+                                return 0;
                         if (ieee80211_is_public_action(hdr, skb->len))
                                 return 1;
                         if (!ieee80211_is_beacon(hdr->frame_control))
diff --git a/net/mac80211/tkip.c b/net/mac80211/tkip.c
index 3ed801d90f1e..124b1fdc20d0 100644
--- a/net/mac80211/tkip.c
+++ b/net/mac80211/tkip.c
@@ -208,10 +208,10 @@ void ieee80211_get_tkip_p2k(struct ieee80211_key_conf *keyconf,
         u32 iv32 = get_unaligned_le32(&data[4]);
         u16 iv16 = data[2] | (data[0] << 8);
 
-        spin_lock_bh(&key->u.tkip.txlock);
+        spin_lock(&key->u.tkip.txlock);
         ieee80211_compute_tkip_p1k(key, iv32);
         tkip_mixing_phase2(tk, ctx, iv16, p2k);
-        spin_unlock_bh(&key->u.tkip.txlock);
+        spin_unlock(&key->u.tkip.txlock);
 }
 EXPORT_SYMBOL(ieee80211_get_tkip_p2k);
 
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 707953fd8324..ffdfe4bc89ad 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1714,6 +1714,13 @@ int ieee80211_reconfig(struct ieee80211_local *local)
         mb();
         local->resuming = false;
 
+        list_for_each_entry(sdata, &local->interfaces, list) {
+                if (!ieee80211_sdata_running(sdata))
+                        continue;
+                if (sdata->vif.type == NL80211_IFTYPE_STATION)
+                        ieee80211_sta_restart(sdata);
+        }
+
         mod_timer(&local->sta_cleanup, jiffies + 1);
 #else
         WARN_ON(1);