ath9k: fix rate handling/reporting

This patch fixes some issues introduced in the rate control API rework.
When not running aggregation, copy bf->rates into info->control.rates
before applying the rate control status to it.
In ath_lookup_rate, the rates need to be pulled from bf->rates, not the
tx info.

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 a47bf69..ad6e0b3 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -630,6 +630,7 @@ static void ath_tx_process_buffer(struct ath_softc *sc, struct ath_txq *txq,
                                  struct ath_tx_status *ts, struct ath_buf *bf,
                                  struct list_head *bf_head)
 {
+       struct ieee80211_tx_info *info;
        bool txok, flush;
 
        txok = !(ts->ts_status & ATH9K_TXERR_MASK);
@@ -641,8 +642,12 @@ static void ath_tx_process_buffer(struct ath_softc *sc, struct ath_txq *txq,
                txq->axq_ampdu_depth--;
 
        if (!bf_isampdu(bf)) {
-               if (!flush)
+               if (!flush) {
+                       info = IEEE80211_SKB_CB(bf->bf_mpdu);
+                       memcpy(info->control.rates, bf->rates,
+                              sizeof(info->control.rates));
                        ath_tx_rc_status(sc, bf, ts, 1, txok ? 0 : 1, txok);
+               }
                ath_tx_complete_buf(sc, bf, txq, bf_head, ts, txok);
        } else
                ath_tx_complete_aggr(sc, txq, bf, bf_head, ts, txok);
@@ -686,7 +691,7 @@ static u32 ath_lookup_rate(struct ath_softc *sc, struct ath_buf *bf,
 
        skb = bf->bf_mpdu;
        tx_info = IEEE80211_SKB_CB(skb);
-       rates = tx_info->control.rates;
+       rates = bf->rates;
 
        /*
         * Find the lowest frame length among the rate series that will have a