package/kernel/mac80211/patches/322-mac80211-update-A-MPDU-flag-on-tx-dequeue.patch

   1 From: Felix Fietkau <nbd@nbd.name>
   2 Date: Fri, 4 Nov 2016 10:13:34 +0100
   3 Subject: [PATCH] mac80211: update A-MPDU flag on tx dequeue
   4
   5 The sequence number counter is used to derive the starting sequence
   6 number. Since that counter is updated on tx dequeue, the A-MPDU flag
   7 needs to be up to date at the tme of dequeue as well.
   8
   9 This patch prevents sending more A-MPDU frames after the session has
  10 been terminated and also ensures that aggregation starts right after the
  11 session has been established
  12
  13 Fixes: bb42f2d13ffc ("mac80211: Move reorder-sensitive TX handlers to after TXQ dequeue")
  14 Signed-off-by: Felix Fietkau <nbd@nbd.name>
  15 ---
  16
  17 --- a/net/mac80211/tx.c
  18 +++ b/net/mac80211/tx.c
  19 @@ -3462,6 +3462,11 @@ begin:
  20                 goto begin;
  21         }
  22
  23 +       if (test_bit(IEEE80211_TXQ_AMPDU, &txqi->flags))
  24 +               info->flags |= IEEE80211_TX_CTL_AMPDU;
  25 +       else
  26 +               info->flags &= ~IEEE80211_TX_CTL_AMPDU;
  27 +
  28         if (info->control.flags & IEEE80211_TX_CTRL_FAST_XMIT) {
  29                 struct sta_info *sta = container_of(txq->sta, struct sta_info,
  30                                                     sta);