ath9k: set the STBC flag in rate control if the peer supports it

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/rc.c b/drivers/net/wireless/ath/ath9k/rc.c
index f10bd06..66bc1f6 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/rc.c
+++ b/drivers/net/wireless/ath/ath9k/rc.c
@@ -698,6 +698,10 @@ static void ath_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
            (sta->ht_cap.cap & IEEE80211_HT_CAP_LDPC_CODING))
                tx_info->flags |= IEEE80211_TX_CTL_LDPC;
 
+       if (conf_is_ht(&sc->hw->conf) &&
+           (sta->ht_cap.cap & IEEE80211_HT_CAP_TX_STBC))
+               tx_info->flags |= (1 << IEEE80211_TX_CTL_STBC_SHIFT);
+
        if (is_probe) {
                /* set one try for probe rates. For the
                 * probes don't enable rts */