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mac80211: don't allow 40MHz tx rates in case of 20MHz chandef 

When 20MHz chandef is used, 40MHz rates shouldn't be
used (by the rate-control algorithm), even if the sta
ht capabilities indicate support for it.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Singed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Eliad Peller 2014-11-11 18:11:22 +02:00 committed by Johannes Berg
parent 339467b906
commit 8b1956f041
1 changed files with 2 additions and 0 deletions
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2
net/mac80211/vht.c
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@ -287,6 +287,8 @@ enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta)
/* fall through */ /* fall through */
case NL80211_CHAN_WIDTH_20_NOHT: case NL80211_CHAN_WIDTH_20_NOHT:
case NL80211_CHAN_WIDTH_20: case NL80211_CHAN_WIDTH_20:
bw = IEEE80211_STA_RX_BW_20;
break;
case NL80211_CHAN_WIDTH_40: case NL80211_CHAN_WIDTH_40:
bw = sta->sta.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 ? bw = sta->sta.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 ?
IEEE80211_STA_RX_BW_40 : IEEE80211_STA_RX_BW_20; IEEE80211_STA_RX_BW_40 : IEEE80211_STA_RX_BW_20;