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authorSujith Manoharan <c_manoha@qualcomm.com>2012-09-12 14:59:58 +0530
committerJohn W. Linville <linville@tuxdriver.com>2012-09-24 14:59:06 -0400
commit215999f38017e8e26791fafc60631b4099ee04ea (patch)
tree33640633ea68954958b8fb7d592f56aa08a9bfd4 /drivers/net/wireless
parent791ef39cd18ae2745a63c51a5dbbd23312be0744 (diff)
downloadblackbird-op-linux-215999f38017e8e26791fafc60631b4099ee04ea.tar.gz
blackbird-op-linux-215999f38017e8e26791fafc60631b4099ee04ea.zip
ath9k: Enable SGI correctly
Set the driver specific SGI flag based on the station's HT capabilities, otherwise rate control uses the wrong rate. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless')
-rw-r--r--drivers/net/wireless/ath/ath9k/rc.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/net/wireless/ath/ath9k/rc.c b/drivers/net/wireless/ath/ath9k/rc.c
index 4b12c347d188..27ed80b54881 100644
--- a/drivers/net/wireless/ath/ath9k/rc.c
+++ b/drivers/net/wireless/ath/ath9k/rc.c
@@ -1222,11 +1222,14 @@ static u8 ath_rc_build_ht_caps(struct ath_softc *sc, struct ieee80211_sta *sta)
caps |= WLAN_RC_TS_FLAG | WLAN_RC_DS_FLAG;
else if (sta->ht_cap.mcs.rx_mask[1])
caps |= WLAN_RC_DS_FLAG;
- if (sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)
+ if (sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) {
caps |= WLAN_RC_40_FLAG;
- if (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40 ||
- sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20)
- caps |= WLAN_RC_SGI_FLAG;
+ if (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40)
+ caps |= WLAN_RC_SGI_FLAG;
+ } else {
+ if (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20)
+ caps |= WLAN_RC_SGI_FLAG;
+ }
}
return caps;
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