AP mode currently sets up the dual stream capability
for all stations. This patch fixes it by checking if the
associated station supports dual stream MCS rates (8-15).
We would disregard any MCS rates above 15, since Atheros
HW supports only 0..15 rates currently, and can't receive
at rates > 15 anyway.
Signed-off-by: Sujith <Sujith.Manoharan@xxxxxxxxxxx>
---
drivers/net/wireless/ath9k/rc.c | 18 +++++++++---------
1 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/drivers/net/wireless/ath9k/rc.c b/drivers/net/wireless/ath9k/rc.c
index a4f2d0a..b32820e 100644
--- a/drivers/net/wireless/ath9k/rc.c
+++ b/drivers/net/wireless/ath9k/rc.c
@@ -1470,16 +1470,18 @@ static void ath_rc_init(struct ath_softc *sc,
ath_rc_priv->ht_cap);
}
-static u8 ath_rc_build_ht_caps(struct ath_softc *sc, bool is_ht, bool is_cw40,
- bool is_sgi40)
+static u8 ath_rc_build_ht_caps(struct ath_softc *sc, struct ieee80211_sta *sta,
+ bool is_cw40, bool is_sgi40)
{
u8 caps = 0;
- if (is_ht) {
+ if (sta->ht_cap.ht_supported) {
caps = WLAN_RC_HT_FLAG;
if (sc->sc_ah->caps.tx_chainmask != 1 &&
- ath9k_hw_getcapability(sc->sc_ah, ATH9K_CAP_DS, 0, NULL))
- caps |= WLAN_RC_DS_FLAG;
+ ath9k_hw_getcapability(sc->sc_ah, ATH9K_CAP_DS, 0, NULL)) {
+ if (sta->ht_cap.mcs.rx_mask[1])
+ caps |= WLAN_RC_DS_FLAG;
+ }
if (is_cw40)
caps |= WLAN_RC_40_FLAG;
if (is_sgi40)
@@ -1626,8 +1628,7 @@ static void ath_rate_init(void *priv, struct ieee80211_supported_band *sband,
rate_table = sc->cur_rate_table;
}
- ath_rc_priv->ht_cap = ath_rc_build_ht_caps(sc, sta->ht_cap.ht_supported,
- is_cw40, is_sgi40);
+ ath_rc_priv->ht_cap = ath_rc_build_ht_caps(sc, sta, is_cw40, is_sgi40);
ath_rc_init(sc, priv_sta, sband, sta, rate_table);
}
@@ -1661,8 +1662,7 @@ static void ath_rate_update(void *priv, struct ieee80211_supported_band *sband,
rate_table = ath_choose_rate_table(sc, sband->band,
sta->ht_cap.ht_supported,
oper_cw40);
- ath_rc_priv->ht_cap = ath_rc_build_ht_caps(sc,
- sta->ht_cap.ht_supported,
+ ath_rc_priv->ht_cap = ath_rc_build_ht_caps(sc, sta,
oper_cw40, oper_sgi40);
ath_rc_init(sc, priv_sta, sband, sta, rate_table);
--
1.6.2
--
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