4 files changed, 22 insertions, 24 deletions

diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 6fac18c0423f..85572353a7e3 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -622,6 +622,7 @@ void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata)
 
         del_timer_sync(&sdata->u.mesh.housekeeping_timer);
         del_timer_sync(&sdata->u.mesh.mesh_path_root_timer);
+        del_timer_sync(&sdata->u.mesh.mesh_path_timer);
         /*
          * If the timer fired while we waited for it, it will have
          * requeued the work. Now the work will be running again
@@ -634,6 +635,8 @@ void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata)
         local->fif_other_bss--;
         atomic_dec(&local->iff_allmultis);
         ieee80211_configure_filter(local);
+
+        sdata->u.mesh.timers_running = 0;
 }
 
 static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata,
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index cef0c9e79aba..a4a5acdbaa4d 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1430,6 +1430,8 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
         del_timer_sync(&sdata->u.mgd.bcn_mon_timer);
         del_timer_sync(&sdata->u.mgd.timer);
         del_timer_sync(&sdata->u.mgd.chswitch_timer);
+
+        sdata->u.mgd.timers_running = 0;
 }
 
 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index bcaee5d12839..839dd9737989 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -299,7 +299,7 @@ static void __ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted,
         if (local->scan_req != local->int_scan_req)
                 cfg80211_scan_done(local->scan_req, aborted);
         local->scan_req = NULL;
-        local->scan_sdata = NULL;
+        rcu_assign_pointer(local->scan_sdata, NULL);
 
         local->scanning = 0;
         local->scan_channel = NULL;
@@ -984,7 +984,6 @@ int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata)
                         kfree(local->sched_scan_ies.ie[i]);
 
                 drv_sched_scan_stop(local, sdata);
-                rcu_assign_pointer(local->sched_scan_sdata, NULL);
         }
 out:
         mutex_unlock(&local->mtx);
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index acf712ffb5e6..c5e8c9c31f76 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1811,37 +1811,31 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
                         meshhdrlen = ieee80211_new_mesh_header(&mesh_hdr,
                                         sdata, NULL, NULL);
                 } else {
-                        int is_mesh_mcast = 1;
-                        const u8 *mesh_da;
+                        /* DS -> MBSS (802.11-2012 13.11.3.3).
+                         * For unicast with unknown forwarding information,
+                         * destination might be in the MBSS or if that fails
+                         * forwarded to another mesh gate. In either case
+                         * resolution will be handled in ieee80211_xmit(), so
+                         * leave the original DA. This also works for mcast */
+                        const u8 *mesh_da = skb->data;
+
+                        if (mppath)
+                                mesh_da = mppath->mpp;
+                        else if (mpath)
+                                mesh_da = mpath->dst;
+                        rcu_read_unlock();
 
-                        if (is_multicast_ether_addr(skb->data))
-                                /* DA TA mSA AE:SA */
-                                mesh_da = skb->data;
-                        else {
-                                static const u8 bcast[ETH_ALEN] =
-                                        { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
-                                if (mppath) {
-                                        /* RA TA mDA mSA AE:DA SA */
-                                        mesh_da = mppath->mpp;
-                                        is_mesh_mcast = 0;
-                                } else if (mpath) {
-                                        mesh_da = mpath->dst;
-                                        is_mesh_mcast = 0;
-                                } else {
-                                        /* DA TA mSA AE:SA */
-                                        mesh_da = bcast;
-                                }
-                        }
                         hdrlen = ieee80211_fill_mesh_addresses(&hdr, &fc,
                                         mesh_da, sdata->vif.addr);
-                        rcu_read_unlock();
-                        if (is_mesh_mcast)
+                        if (is_multicast_ether_addr(mesh_da))
+                                /* DA TA mSA AE:SA */
                                 meshhdrlen =
                                         ieee80211_new_mesh_header(&mesh_hdr,
                                                         sdata,
                                                         skb->data + ETH_ALEN,
                                                         NULL);
                         else
+                                /* RA TA mDA mSA AE:DA SA */
                                 meshhdrlen =
                                         ieee80211_new_mesh_header(&mesh_hdr,
                                                         sdata,