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path: root/drivers/net/wireless/ath/ath9k/rc.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath9k/rc.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/rc.c17
1 files changed, 8 insertions, 9 deletions
diff --git a/drivers/net/wireless/ath/ath9k/rc.c b/drivers/net/wireless/ath/ath9k/rc.c
index 92a6c0a87f8..e034add9cd5 100644
--- a/drivers/net/wireless/ath/ath9k/rc.c
+++ b/drivers/net/wireless/ath/ath9k/rc.c
@@ -770,7 +770,7 @@ static void ath_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
struct ieee80211_tx_rate *rates = tx_info->control.rates;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
__le16 fc = hdr->frame_control;
- u8 try_per_rate, i = 0, rix, high_rix;
+ u8 try_per_rate, i = 0, rix;
int is_probe = 0;
if (rate_control_send_low(sta, priv_sta, txrc))
@@ -791,7 +791,6 @@ static void ath_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
rate_table = ath_rc_priv->rate_table;
rix = ath_rc_get_highest_rix(sc, ath_rc_priv, rate_table,
&is_probe, false);
- high_rix = rix;
/*
* If we're in HT mode and both us and our peer supports LDPC.
@@ -839,16 +838,16 @@ static void ath_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
try_per_rate = 8;
/*
- * Use a legacy rate as last retry to ensure that the frame
- * is tried in both MCS and legacy rates.
+ * If the last rate in the rate series is MCS and has
+ * more than 80% of per thresh, then use a legacy rate
+ * as last retry to ensure that the frame is tried in both
+ * MCS and legacy rate.
*/
- if ((rates[2].flags & IEEE80211_TX_RC_MCS) &&
- (!(tx_info->flags & IEEE80211_TX_CTL_AMPDU) ||
- (ath_rc_priv->per[high_rix] > 45)))
+ ath_rc_get_lower_rix(rate_table, ath_rc_priv, rix, &rix);
+ if (WLAN_RC_PHY_HT(rate_table->info[rix].phy) &&
+ (ath_rc_priv->per[rix] > 45))
rix = ath_rc_get_highest_rix(sc, ath_rc_priv, rate_table,
&is_probe, true);
- else
- ath_rc_get_lower_rix(rate_table, ath_rc_priv, rix, &rix);
/* All other rates in the series have RTS enabled */
ath_rc_rate_set_series(rate_table, &rates[i], txrc,