mac80211: process and save VHT MU-MIMO group frame

The Group ID Management frame is an Action frame of
category VHT. It is transmitted by the AP to assign
or change the user position of a STA for one or more
group IDs.
Process and save the group membership data. Notify
underlying driver of changes.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 1c342e2592c4..31d5881b31fa 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2079,6 +2079,13 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
         memset(&ifmgd->ht_capa_mask, 0, sizeof(ifmgd->ht_capa_mask));
         memset(&ifmgd->vht_capa, 0, sizeof(ifmgd->vht_capa));
         memset(&ifmgd->vht_capa_mask, 0, sizeof(ifmgd->vht_capa_mask));
+
+        /* reset MU-MIMO ownership and group data */
+        memset(sdata->vif.bss_conf.mu_group.membership, 0,
+               sizeof(sdata->vif.bss_conf.mu_group.membership));
+        memset(sdata->vif.bss_conf.mu_group.position, 0,
+               sizeof(sdata->vif.bss_conf.mu_group.position));
+        changed |= BSS_CHANGED_MU_GROUPS;
         sdata->flags &= ~IEEE80211_SDATA_MU_MIMO_OWNER;
 
         sdata->ap_power_level = IEEE80211_UNSET_POWER_LEVEL;