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Diffstat (limited to 'net/mac80211/vht.c')
-rw-r--r--net/mac80211/vht.c37
1 files changed, 28 insertions, 9 deletions
diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c
index d75f35c6e1a..671ce0d27a8 100644
--- a/net/mac80211/vht.c
+++ b/net/mac80211/vht.c
@@ -129,10 +129,17 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
if (!vht_cap_ie || !sband->vht_cap.vht_supported)
return;
- /* A VHT STA must support 40 MHz */
- if (!(sta->sta.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))
+ /* don't support VHT for TDLS peers for now */
+ if (test_sta_flag(sta, WLAN_STA_TDLS_PEER))
return;
+ /*
+ * A VHT STA must support 40 MHz, but if we verify that here
+ * then we break a few things - some APs (e.g. Netgear R6300v2
+ * and others based on the BCM4360 chipset) will unset this
+ * capability bit when operating in 20 MHz.
+ */
+
vht_cap->vht_supported = true;
own_cap = sband->vht_cap;
@@ -349,9 +356,9 @@ void ieee80211_sta_set_rx_nss(struct sta_info *sta)
sta->sta.rx_nss = max_t(u8, 1, ht_rx_nss);
}
-void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
- struct sta_info *sta, u8 opmode,
- enum ieee80211_band band, bool nss_only)
+u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
+ struct sta_info *sta, u8 opmode,
+ enum ieee80211_band band, bool nss_only)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_supported_band *sband;
@@ -363,7 +370,7 @@ void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
/* ignore - no support for BF yet */
if (opmode & IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF)
- return;
+ return 0;
nss = opmode & IEEE80211_OPMODE_NOTIF_RX_NSS_MASK;
nss >>= IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT;
@@ -375,7 +382,7 @@ void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
}
if (nss_only)
- goto change;
+ return changed;
switch (opmode & IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK) {
case IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ:
@@ -398,7 +405,19 @@ void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
changed |= IEEE80211_RC_BW_CHANGED;
}
- change:
- if (changed)
+ return changed;
+}
+
+void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
+ struct sta_info *sta, u8 opmode,
+ enum ieee80211_band band, bool nss_only)
+{
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_supported_band *sband = local->hw.wiphy->bands[band];
+
+ u32 changed = __ieee80211_vht_handle_opmode(sdata, sta, opmode,
+ band, nss_only);
+
+ if (changed > 0)
rate_control_rate_update(local, sband, sta, changed);
}