Commit 2f7916f8 authored Jul 07, 2012 by Christian Lamparter Committed by Johannes Berg Jul 07, 2012

mac80211: request TX status for BlockAck Requests



Because ieee80211_tx_status in status.c checks if
outgoing BlockAck requests have been acked, it is
necessary to tell the driver that tx feedback for
this sort of frame is important.

Otherwise, the stack will continue to send the same
BlockAck request over and over, which can cause
the receiver to flush or clean its reorder buffer
over and over.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

parent 4d6d0ae2

net/mac80211/agg-tx.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -135,7 +135,8 @@ void ieee80211_send_bar(struct ieee80211_vif vif, u8 ra, u16 tid, u16 ssn)
		bar->control = cpu_to_le16(bar_control);
		bar->start_seq_num = cpu_to_le16(ssn);

		IEEE80211_SKB_CB(skb)->flags \|= IEEE80211_TX_INTFL_DONT_ENCRYPT;
		IEEE80211_SKB_CB(skb)->flags \|= IEEE80211_TX_INTFL_DONT_ENCRYPT \|
		IEEE80211_TX_CTL_REQ_TX_STATUS;
		ieee80211_tx_skb_tid(sdata, skb, tid);
		}
		EXPORT_SYMBOL(ieee80211_send_bar);

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