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ath9k: Enable SGI correctly

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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>
This commit is contained in:
Sujith Manoharan 2012-09-12 14:59:58 +05:30 committed by John W. Linville
parent 791ef39cd1
commit 215999f380
1 changed files with 7 additions and 4 deletions
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11
drivers/net/wireless/ath/ath9k/rc.c
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@ -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;