ath9k: simplify ath_tid_drain

ath_tid_drain is only called when a station entry is being removed, so
there is no point in still tracking BAW state. Remove some unnecessary
code and a bogus TODO comment related to this.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 4fc80e3..cb06c1c 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -312,12 +312,6 @@ static void ath_tx_addto_baw(struct ath_softc *sc, struct ath_atx_tid *tid,
        }
 }
 
-/*
- * TODO: For frame(s) that are in the retry state, we will reuse the
- * sequence number(s) without setting the retry bit. The
- * alternative is to give up on these and BAR the receiver's window
- * forward.
- */
 static void ath_tid_drain(struct ath_softc *sc, struct ath_txq *txq,
                          struct ath_atx_tid *tid)
 
@@ -341,14 +335,8 @@ static void ath_tid_drain(struct ath_softc *sc, struct ath_txq *txq,
                }
 
                list_add_tail(&bf->list, &bf_head);
-
-               ath_tx_update_baw(sc, tid, bf->bf_state.seqno);
                ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0);
        }
-
-       tid->seq_next = tid->seq_start;
-       tid->baw_tail = tid->baw_head;
-       tid->bar_index = -1;
 }
 
 static void ath_tx_set_retry(struct ath_softc *sc, struct ath_txq *txq,