1 files changed, 18 insertions, 17 deletions

diff --git a/drivers/net/wireless/ath/ath9k/rc.c b/drivers/net/wireless/ath/ath9k/rc.c
index 70fdb9d8db8..244e1c62917 100644
--- a/drivers/net/wireless/ath/ath9k/rc.c
+++ b/drivers/net/wireless/ath/ath9k/rc.c
@@ -15,6 +15,8 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+#include <linux/slab.h>
+
 #include "ath9k.h"
 
 static const struct ath_rate_table ar5416_11na_ratetable = {
@@ -668,7 +670,7 @@ 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, nrix;
+	u8 try_per_rate, i = 0, rix;
 	int is_probe = 0;
 
 	if (rate_control_send_low(sta, priv_sta, txrc))
@@ -678,48 +680,47 @@ static void ath_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
 	 * For Multi Rate Retry we use a different number of
 	 * retry attempt counts. This ends up looking like this:
 	 *
-	 * MRR[0] = 2
-	 * MRR[1] = 2
-	 * MRR[2] = 2
-	 * MRR[3] = 4
+	 * MRR[0] = 4
+	 * MRR[1] = 4
+	 * MRR[2] = 4
+	 * MRR[3] = 8
 	 *
 	 */
-	try_per_rate = sc->hw->max_rate_tries;
+	try_per_rate = 4;
 
 	rate_table = sc->cur_rate_table;
 	rix = ath_rc_get_highest_rix(sc, ath_rc_priv, rate_table, &is_probe);
-	nrix = rix;
 
 	if (is_probe) {
 		/* set one try for probe rates. For the
 		 * probes don't enable rts */
 		ath_rc_rate_set_series(rate_table, &rates[i++], txrc,
-				       1, nrix, 0);
+				       1, rix, 0);
 
 		/* Get the next tried/allowed rate. No RTS for the next series
 		 * after the probe rate
 		 */
-		ath_rc_get_lower_rix(rate_table, ath_rc_priv, rix, &nrix);
+		ath_rc_get_lower_rix(rate_table, ath_rc_priv, rix, &rix);
 		ath_rc_rate_set_series(rate_table, &rates[i++], txrc,
-				       try_per_rate, nrix, 0);
+				       try_per_rate, rix, 0);
 
 		tx_info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE;
 	} else {
 		/* Set the choosen rate. No RTS for first series entry. */
 		ath_rc_rate_set_series(rate_table, &rates[i++], txrc,
-				       try_per_rate, nrix, 0);
+				       try_per_rate, rix, 0);
 	}
 
 	/* Fill in the other rates for multirate retry */
 	for ( ; i < 4; i++) {
 		/* Use twice the number of tries for the last MRR segment. */
 		if (i + 1 == 4)
-			try_per_rate = 4;
+			try_per_rate = 8;
 
-		ath_rc_get_lower_rix(rate_table, ath_rc_priv, rix, &nrix);
+		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,
-				       try_per_rate, nrix, 1);
+				       try_per_rate, rix, 1);
 	}
 
 	/*
@@ -1324,7 +1325,7 @@ static void ath_rate_init(void *priv, struct ieee80211_supported_band *sband,
 
 static void ath_rate_update(void *priv, struct ieee80211_supported_band *sband,
 			    struct ieee80211_sta *sta, void *priv_sta,
-			    u32 changed)
+			    u32 changed, enum nl80211_channel_type oper_chan_type)
 {
 	struct ath_softc *sc = priv;
 	struct ath_rate_priv *ath_rc_priv = priv_sta;
@@ -1341,8 +1342,8 @@ static void ath_rate_update(void *priv, struct ieee80211_supported_band *sband,
 		if (sc->sc_ah->opmode != NL80211_IFTYPE_STATION)
 			return;
 
-		if (sc->hw->conf.channel_type == NL80211_CHAN_HT40MINUS ||
-		    sc->hw->conf.channel_type == NL80211_CHAN_HT40PLUS)
+		if (oper_chan_type == NL80211_CHAN_HT40MINUS ||
+		    oper_chan_type == NL80211_CHAN_HT40PLUS)
 			oper_cw40 = true;
 
 		oper_sgi40 = (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40) ?