diff options
Diffstat (limited to 'net/mac80211/ieee80211_i.h')
| -rw-r--r-- | net/mac80211/ieee80211_i.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 34c2add2c455..103187ca9474 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -307,6 +307,7 @@ struct ieee80211_if_vlan { /* used for all tx if the VLAN is configured to 4-addr mode */ struct sta_info __rcu *sta; + atomic_t num_mcast_sta; /* number of stations receiving multicast */ }; struct mesh_stats { @@ -1527,6 +1528,23 @@ ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status) return false; } +void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata); +void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata); + +/* This function returns the number of multicast stations connected to this + * interface. It returns -1 if that number is not tracked, that is for netdevs + * not in AP or AP_VLAN mode or when using 4addr. + */ +static inline int +ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata) +{ + if (sdata->vif.type == NL80211_IFTYPE_AP) + return atomic_read(&sdata->u.ap.num_mcast_sta); + if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta) + return atomic_read(&sdata->u.vlan.num_mcast_sta); + return -1; +} + u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, struct ieee80211_rx_status *status, unsigned int mpdu_len, |