Frames that are sent between
ampdu_action(IEEE80211_AMPDU_TX_START) and the move to the
HT_AGG_STATE_OPERATIONAL state are buffered.
If we try to start an A-MPDU session while the peer is
sleeping and polling frames with U-APSD, we may have frames
that will be buffered by ieee80211_tx_prep_agg. These frames
have IEEE80211_TX_CTL_NO_PS_BUFFER set since they are sent to
a sleeping client and possibly IEEE80211_TX_STATUS_EOSP.
If the frame is buffered, we need clear these two flags
since they will be re-sent after the move to
HT_AGG_STATE_OPERATIONAL state which is very likely to
happen after the SP ends.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumb...@intel.com>
---
net/mac80211/tx.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 485e30a..114509a 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1118,9 +1118,7 @@ static bool ieee80211_tx_prep_agg(struct
ieee80211_tx_data *tx,
queued = true;
info->control.vif = &tx->sdata->vif;
info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
- info->flags &= ~IEEE80211_TX_TEMPORARY_FLAGS |
- IEEE80211_TX_CTL_NO_PS_BUFFER |
- IEEE80211_TX_STATUS_EOSP;
+ info->flags &= ~IEEE80211_TX_TEMPORARY_FLAGS;
__skb_queue_tail(&tid_tx->pending, skb);
if (skb_queue_len(&tid_tx->pending) > STA_MAX_TX_BUFFER)
purge_skb = __skb_dequeue(&tid_tx->pending);
--
2.5.0
--
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