Commit c7dcb45f authored Jul 28, 2014 by Denton Gentry Committed by Johannes Berg Aug 26, 2014

mac80211: fix start_seq_num in Rx reorder offload



sta->last_seq_ctrl is the seq_ctrl field from the last header
seen, need to shift it 4 bits to extract the sequence number.
Otherwise the ieee80211_sn_less() check at the top of
ieee80211_sta_manage_reorder_buf drops frames until the sequence
number catches up.

Cc: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Denton Gentry <denton.gentry@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

parent 6c6fa496

net/mac80211/iface.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -1175,8 +1175,8 @@ static void ieee80211_iface_work(struct work_struct *work)
		if (sta) {
		u16 last_seq;

		last_seq = le16_to_cpu(
		sta->last_seq_ctrl[rx_agg->tid]);
		last_seq = IEEE80211_SEQ_TO_SN(le16_to_cpu(
		sta->last_seq_ctrl[rx_agg->tid]));

		__ieee80211_start_rx_ba_session(sta,
		0, 0,

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