Upgrade to 4.4.50-rt62

[kvmfornfv.git] / kernel / net / mac80211 / mesh.c

diff --git a/kernel/net/mac80211/mesh.c b/kernel/net/mac80211/mesh.c
index 6f85b6a..9063e8e 100644 (file)
--- a/kernel/net/mac80211/mesh.c
+++ b/kernel/net/mac80211/mesh.c
@@ -151,19 +151,26 @@ u32 mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata)
 void mesh_sta_cleanup(struct sta_info *sta)
 {
        struct ieee80211_sub_if_data *sdata = sta->sdata;
-       u32 changed;
+       u32 changed = 0;
 
        /*
         * maybe userspace handles peer allocation and peering, but in either
         * case the beacon is still generated by the kernel and we might need
         * an update.
         */
-       changed = mesh_accept_plinks_update(sdata);
+       if (sdata->u.mesh.user_mpm &&
+           sta->mesh->plink_state == NL80211_PLINK_ESTAB)
+               changed |= mesh_plink_dec_estab_count(sdata);
+       changed |= mesh_accept_plinks_update(sdata);
        if (!sdata->u.mesh.user_mpm) {
                changed |= mesh_plink_deactivate(sta);
                del_timer_sync(&sta->mesh->plink_timer);
        }
 
+       /* make sure no readers can access nexthop sta from here on */
+       mesh_path_flush_by_nexthop(sta);
+       synchronize_net();
+
        if (changed)
                ieee80211_mbss_info_change_notify(sdata, changed);
 }
@@ -348,7 +355,7 @@ int mesh_add_vendor_ies(struct ieee80211_sub_if_data *sdata,
        /* fast-forward to vendor IEs */
        offset = ieee80211_ie_split_vendor(ifmsh->ie, ifmsh->ie_len, 0);
 
-       if (offset) {
+       if (offset < ifmsh->ie_len) {
                len = ifmsh->ie_len - offset;
                data = ifmsh->ie + offset;
                if (skb_tailroom(skb) < len)