diff options
Diffstat (limited to 'net/mac80211/agg-rx.c')
| -rw-r--r-- | net/mac80211/agg-rx.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c index a8b1616cec41..e83c19d4c292 100644 --- a/net/mac80211/agg-rx.c +++ b/net/mac80211/agg-rx.c @@ -8,6 +8,7 @@ * Copyright 2007, Michael Wu <flamingice@sourmilk.net> * Copyright 2007-2010, Intel Corporation * Copyright(c) 2015-2017 Intel Deutschland GmbH + * Copyright (C) 2018 Intel Corporation * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -297,16 +298,23 @@ void ___ieee80211_start_rx_ba_session(struct sta_info *sta, if (test_bit(tid, sta->ampdu_mlme.agg_session_valid)) { if (sta->ampdu_mlme.tid_rx_token[tid] == dialog_token) { + struct tid_ampdu_rx *tid_rx; + ht_dbg_ratelimited(sta->sdata, "updated AddBA Req from %pM on tid %u\n", sta->sta.addr, tid); /* We have no API to update the timeout value in the - * driver so reject the timeout update. + * driver so reject the timeout update if the timeout + * changed. If if did not change, i.e., no real update, + * just reply with success. */ - status = WLAN_STATUS_REQUEST_DECLINED; - ieee80211_send_addba_resp(sta->sdata, sta->sta.addr, - tid, dialog_token, status, - 1, buf_size, timeout); + rcu_read_lock(); + tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[tid]); + if (tid_rx && tid_rx->timeout == timeout) + status = WLAN_STATUS_SUCCESS; + else + status = WLAN_STATUS_REQUEST_DECLINED; + rcu_read_unlock(); goto end; } |