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mac80211: avoid transmitting delBA to old AP

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When roaming while we have active BA session,
we can end up transmitting delBA frames to
the old AP while we're already on the new AP's
channel, which can cause warnings.

Simply avoid sending those frames, but still
tear down the internal session state, since
they are not really necessary anyway as we
will implicitly disassociate when sending the
association to the new AP.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg
2010-10-05 19:37:40 +02:00
committed by John W. Linville
parent 845d708e62
commit 53f73c09d6
11 changed files with 48 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files
net/mac80211/ht.c
+10 -7
View File
@@ -101,16 +101,16 @@ void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband,
ht_cap->mcs.rx_mask[32/8] |= 1;
}
void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta)
void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, bool tx)
{
int i;
cancel_work_sync(&sta->ampdu_mlme.work);
for (i = 0; i < STA_TID_NUM; i++) {
__ieee80211_stop_tx_ba_session(sta, i, WLAN_BACK_INITIATOR);
__ieee80211_stop_tx_ba_session(sta, i, WLAN_BACK_INITIATOR, tx);
__ieee80211_stop_rx_ba_session(sta, i, WLAN_BACK_RECIPIENT,
WLAN_REASON_QSTA_LEAVE_QBSS);
WLAN_REASON_QSTA_LEAVE_QBSS, tx);
}
}
@@ -135,7 +135,7 @@ void ieee80211_ba_session_work(struct work_struct *work)
if (test_and_clear_bit(tid, sta->ampdu_mlme.tid_rx_timer_expired))
___ieee80211_stop_rx_ba_session(
sta, tid, WLAN_BACK_RECIPIENT,
WLAN_REASON_QSTA_TIMEOUT);
WLAN_REASON_QSTA_TIMEOUT, true);
tid_tx = sta->ampdu_mlme.tid_tx[tid];
if (!tid_tx)
@@ -146,7 +146,8 @@ void ieee80211_ba_session_work(struct work_struct *work)
else if (test_and_clear_bit(HT_AGG_STATE_WANT_STOP,
&tid_tx->state))
___ieee80211_stop_tx_ba_session(sta, tid,
WLAN_BACK_INITIATOR);
WLAN_BACK_INITIATOR,
true);
}
mutex_unlock(&sta->ampdu_mlme.mtx);
}
@@ -214,9 +215,11 @@ void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
#endif /* CONFIG_MAC80211_HT_DEBUG */
if (initiator == WLAN_BACK_INITIATOR)
__ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_INITIATOR, 0);
__ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_INITIATOR, 0,
true);
else
__ieee80211_stop_tx_ba_session(sta, tid, WLAN_BACK_RECIPIENT);
__ieee80211_stop_tx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
true);
}
int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,