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-rw-r--r--net/mac80211/vht.c73
1 files changed, 38 insertions, 35 deletions
diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c
index bc9e8fc..85f9596 100644
--- a/net/mac80211/vht.c
+++ b/net/mac80211/vht.c
@@ -269,51 +269,54 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
sta->sta.bandwidth = ieee80211_sta_cur_vht_bw(sta);
}
-enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta)
+enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta)
{
- struct ieee80211_sub_if_data *sdata = sta->sdata;
- u32 cap = sta->sta.vht_cap.cap;
- enum ieee80211_sta_rx_bandwidth bw;
+ struct ieee80211_sta_vht_cap *vht_cap = &sta->sta.vht_cap;
+ u32 cap_width;
- if (!sta->sta.vht_cap.vht_supported) {
- bw = sta->sta.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 ?
- IEEE80211_STA_RX_BW_40 : IEEE80211_STA_RX_BW_20;
- goto check_max;
- }
+ if (!vht_cap->vht_supported)
+ return sta->sta.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 ?
+ IEEE80211_STA_RX_BW_40 :
+ IEEE80211_STA_RX_BW_20;
- switch (sdata->vif.bss_conf.chandef.width) {
- default:
- WARN_ON_ONCE(1);
- /* fall through */
+ cap_width = vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK;
+
+ if (cap_width == IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ ||
+ cap_width == IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ)
+ return IEEE80211_STA_RX_BW_160;
+
+ return IEEE80211_STA_RX_BW_80;
+}
+
+static enum ieee80211_sta_rx_bandwidth
+ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width)
+{
+ switch (width) {
case NL80211_CHAN_WIDTH_20_NOHT:
case NL80211_CHAN_WIDTH_20:
- bw = IEEE80211_STA_RX_BW_20;
- break;
+ return IEEE80211_STA_RX_BW_20;
case NL80211_CHAN_WIDTH_40:
- bw = sta->sta.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 ?
- IEEE80211_STA_RX_BW_40 : IEEE80211_STA_RX_BW_20;
- break;
+ return IEEE80211_STA_RX_BW_40;
+ case NL80211_CHAN_WIDTH_80:
+ return IEEE80211_STA_RX_BW_80;
case NL80211_CHAN_WIDTH_160:
- if ((cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) ==
- IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ) {
- bw = IEEE80211_STA_RX_BW_160;
- break;
- }
- /* fall through */
case NL80211_CHAN_WIDTH_80P80:
- if ((cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) ==
- IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ) {
- bw = IEEE80211_STA_RX_BW_160;
- break;
- }
- /* fall through */
- case NL80211_CHAN_WIDTH_80:
- bw = IEEE80211_STA_RX_BW_80;
+ return IEEE80211_STA_RX_BW_160;
+ default:
+ WARN_ON_ONCE(1);
+ return IEEE80211_STA_RX_BW_20;
}
+}
+
+enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta)
+{
+ struct ieee80211_sub_if_data *sdata = sta->sdata;
+ enum ieee80211_sta_rx_bandwidth bw;
+
+ bw = ieee80211_chan_width_to_rx_bw(sdata->vif.bss_conf.chandef.width);
+ bw = min(bw, ieee80211_sta_cap_rx_bw(sta));
+ bw = min(bw, sta->cur_max_bandwidth);
- check_max:
- if (bw > sta->cur_max_bandwidth)
- bw = sta->cur_max_bandwidth;
return bw;
}
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