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mac80211: fix start_seq_num in Rx reorder offload

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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>
This commit is contained in:
Denton Gentry 2014-07-28 23:36:32 -07:00 • committed by Johannes Berg
commit c7dcb45fac
1 changed files with 2 additions and 2 deletions
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4
net/mac80211/iface.c
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@ -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,