diff options
Diffstat (limited to 'net/mac80211/cfg.c')
| -rw-r--r-- | net/mac80211/cfg.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 510a745c3108..70b2af2315a6 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -1005,6 +1005,9 @@ static int ieee80211_change_station(struct wiphy *wiphy, } if (params->vlan && params->vlan != sta->sdata->dev) { + bool prev_4addr = false; + bool new_4addr = false; + vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN && @@ -1020,9 +1023,25 @@ static int ieee80211_change_station(struct wiphy *wiphy, } rcu_assign_pointer(vlansdata->u.vlan.sta, sta); + new_4addr = true; + } + + if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && + sta->sdata->u.vlan.sta) { + rcu_assign_pointer(sta->sdata->u.vlan.sta, NULL); + prev_4addr = true; } sta->sdata = vlansdata; + + if (sta->sta_state == IEEE80211_STA_AUTHORIZED && + prev_4addr != new_4addr) { + if (new_4addr) + atomic_dec(&sta->sdata->bss->num_mcast_sta); + else + atomic_inc(&sta->sdata->bss->num_mcast_sta); + } + ieee80211_send_layer2_update(sta); } |