summaryrefslogtreecommitdiffstats
path: root/net/mac80211/ht.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/mac80211/ht.c')
-rw-r--r--net/mac80211/ht.c52
1 files changed, 25 insertions, 27 deletions
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index 0db25d4bb22..af8cee06e4f 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -40,13 +40,6 @@ void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
if (!ht_cap->ht_supported)
return;
- if (sdata->vif.type != NL80211_IFTYPE_STATION) {
- /* AP interfaces call this code when adding new stations,
- * so just silently ignore non station interfaces.
- */
- return;
- }
-
/* NOTE: If you add more over-rides here, update register_hw
* ht_capa_mod_msk logic in main.c as well.
* And, if this method can ever change ht_cap.ht_supported, fix
@@ -97,7 +90,7 @@ bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
const struct ieee80211_ht_cap *ht_cap_ie,
struct sta_info *sta)
{
- struct ieee80211_sta_ht_cap ht_cap;
+ struct ieee80211_sta_ht_cap ht_cap, own_cap;
u8 ampdu_info, tx_mcs_set_cap;
int i, max_tx_streams;
bool changed;
@@ -111,6 +104,18 @@ bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
ht_cap.ht_supported = true;
+ own_cap = sband->ht_cap;
+
+ /*
+ * If user has specified capability over-rides, take care
+ * of that if the station we're setting up is the AP that
+ * we advertised a restricted capability set to. Override
+ * our own capabilities and then use those below.
+ */
+ if (sdata->vif.type == NL80211_IFTYPE_STATION &&
+ !test_sta_flag(sta, WLAN_STA_TDLS_PEER))
+ ieee80211_apply_htcap_overrides(sdata, &own_cap);
+
/*
* The bits listed in this expression should be
* the same for the peer and us, if the station
@@ -118,21 +123,20 @@ bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
* we mask them out.
*/
ht_cap.cap = le16_to_cpu(ht_cap_ie->cap_info) &
- (sband->ht_cap.cap |
- ~(IEEE80211_HT_CAP_LDPC_CODING |
- IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
- IEEE80211_HT_CAP_GRN_FLD |
- IEEE80211_HT_CAP_SGI_20 |
- IEEE80211_HT_CAP_SGI_40 |
- IEEE80211_HT_CAP_DSSSCCK40));
+ (own_cap.cap | ~(IEEE80211_HT_CAP_LDPC_CODING |
+ IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
+ IEEE80211_HT_CAP_GRN_FLD |
+ IEEE80211_HT_CAP_SGI_20 |
+ IEEE80211_HT_CAP_SGI_40 |
+ IEEE80211_HT_CAP_DSSSCCK40));
/*
* The STBC bits are asymmetric -- if we don't have
* TX then mask out the peer's RX and vice versa.
*/
- if (!(sband->ht_cap.cap & IEEE80211_HT_CAP_TX_STBC))
+ if (!(own_cap.cap & IEEE80211_HT_CAP_TX_STBC))
ht_cap.cap &= ~IEEE80211_HT_CAP_RX_STBC;
- if (!(sband->ht_cap.cap & IEEE80211_HT_CAP_RX_STBC))
+ if (!(own_cap.cap & IEEE80211_HT_CAP_RX_STBC))
ht_cap.cap &= ~IEEE80211_HT_CAP_TX_STBC;
ampdu_info = ht_cap_ie->ampdu_params_info;
@@ -142,7 +146,7 @@ bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
(ampdu_info & IEEE80211_HT_AMPDU_PARM_DENSITY) >> 2;
/* own MCS TX capabilities */
- tx_mcs_set_cap = sband->ht_cap.mcs.tx_params;
+ tx_mcs_set_cap = own_cap.mcs.tx_params;
/* Copy peer MCS TX capabilities, the driver might need them. */
ht_cap.mcs.tx_params = ht_cap_ie->mcs.tx_params;
@@ -168,26 +172,20 @@ bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
*/
for (i = 0; i < max_tx_streams; i++)
ht_cap.mcs.rx_mask[i] =
- sband->ht_cap.mcs.rx_mask[i] & ht_cap_ie->mcs.rx_mask[i];
+ own_cap.mcs.rx_mask[i] & ht_cap_ie->mcs.rx_mask[i];
if (tx_mcs_set_cap & IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION)
for (i = IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE;
i < IEEE80211_HT_MCS_MASK_LEN; i++)
ht_cap.mcs.rx_mask[i] =
- sband->ht_cap.mcs.rx_mask[i] &
+ own_cap.mcs.rx_mask[i] &
ht_cap_ie->mcs.rx_mask[i];
/* handle MCS rate 32 too */
- if (sband->ht_cap.mcs.rx_mask[32/8] & ht_cap_ie->mcs.rx_mask[32/8] & 1)
+ if (own_cap.mcs.rx_mask[32/8] & ht_cap_ie->mcs.rx_mask[32/8] & 1)
ht_cap.mcs.rx_mask[32/8] |= 1;
apply:
- /*
- * If user has specified capability over-rides, take care
- * of that here.
- */
- ieee80211_apply_htcap_overrides(sdata, &ht_cap);
-
changed = memcmp(&sta->sta.ht_cap, &ht_cap, sizeof(ht_cap));
memcpy(&sta->sta.ht_cap, &ht_cap, sizeof(ht_cap));