mac80211: tell driver about IBSS merge

My previous patch "mac80211: notify driver about
IBSS status" left a problem -- when we merge with
a new BSSID, we never tell the driver that we left
the old one. Fix that.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index a87e309e3b9..c585fced858 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -91,6 +91,12 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
         if (memcmp(ifibss->bssid, bssid, ETH_ALEN))
                 sta_info_flush(sdata->local, sdata);
 
+        /* if merging, indicate to driver that we leave the old IBSS */
+        if (sdata->vif.bss_conf.ibss_joined) {
+                sdata->vif.bss_conf.ibss_joined = false;
+                ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_IBSS);
+        }
+
         memcpy(ifibss->bssid, bssid, ETH_ALEN);
 
         sdata->drop_unencrypted = capability & WLAN_CAPABILITY_PRIVACY ? 1 : 0;