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mac80211: HE STA disassoc due to QOS NULL not sent

Message ID 20190702122010.11174-1-shay.bar@celeno.com (mailing list archive)
State Superseded
Delegated to: Johannes Berg
Headers show
Series mac80211: HE STA disassoc due to QOS NULL not sent | expand

Commit Message

Shay Bar July 2, 2019, 12:20 p.m. UTC 
In case of HE AP-STA link, ieee80211_send_nullfunc() will not send the QOS NULL packet to check if AP is still associated.
In this case, probe_send_count will be non zero and ieee80211_sta_work() will later disassociate the AP.
(although it didn't really send a test QOS NULL packet).
Fix is to decrement probe_send_count and not call ieee80211_send_nullfunc() in case of HE link.

Signed-off-by: Shay Bar <shay.bar@celeno.com>
---
 net/mac80211/mlme.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--
2.22.0
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Patch

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 379d2ab6d327..bc5ed2dbe69b 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2511,7 +2511,10 @@  static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata)

 if (ieee80211_hw_check(&sdata->local->hw, REPORTS_TX_ACK_STATUS)) {
 ifmgd->nullfunc_failed = false;
-ieee80211_send_nullfunc(sdata->local, sdata, false);
+if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HE))
+ifmgd->probe_send_count--;
+else
+ieee80211_send_nullfunc(sdata->local, sdata, false);
 } else {
 int ssid_len;