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-rw-r--r--net/mac80211/cfg.c182
-rw-r--r--net/mac80211/driver-ops.h37
-rw-r--r--net/mac80211/driver-trace.h15
-rw-r--r--net/mac80211/ibss.c2
-rw-r--r--net/mac80211/ieee80211_i.h3
-rw-r--r--net/mac80211/mesh.c18
-rw-r--r--net/mac80211/mesh_plink.c96
-rw-r--r--net/mac80211/mlme.c2
-rw-r--r--net/mac80211/sta_info.h1
-rw-r--r--net/mac80211/util.c9
10 files changed, 343 insertions, 22 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 7e6781f8c57..495831ee48f 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -450,6 +450,180 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
}
+static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
+ "rx_packets", "rx_bytes", "wep_weak_iv_count",
+ "rx_duplicates", "rx_fragments", "rx_dropped",
+ "tx_packets", "tx_bytes", "tx_fragments",
+ "tx_filtered", "tx_retry_failed", "tx_retries",
+ "beacon_loss", "sta_state", "txrate", "rxrate", "signal",
+ "channel", "noise", "ch_time", "ch_time_busy",
+ "ch_time_ext_busy", "ch_time_rx", "ch_time_tx"
+};
+#define STA_STATS_LEN ARRAY_SIZE(ieee80211_gstrings_sta_stats)
+
+static int ieee80211_get_et_sset_count(struct wiphy *wiphy,
+ struct net_device *dev,
+ int sset)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ int rv = 0;
+
+ if (sset == ETH_SS_STATS)
+ rv += STA_STATS_LEN;
+
+ rv += drv_get_et_sset_count(sdata, sset);
+
+ if (rv == 0)
+ return -EOPNOTSUPP;
+ return rv;
+}
+
+static void ieee80211_get_et_stats(struct wiphy *wiphy,
+ struct net_device *dev,
+ struct ethtool_stats *stats,
+ u64 *data)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct sta_info *sta;
+ struct ieee80211_local *local = sdata->local;
+ struct station_info sinfo;
+ struct survey_info survey;
+ int i, q;
+#define STA_STATS_SURVEY_LEN 7
+
+ memset(data, 0, sizeof(u64) * STA_STATS_LEN);
+
+#define ADD_STA_STATS(sta) \
+ do { \
+ data[i++] += sta->rx_packets; \
+ data[i++] += sta->rx_bytes; \
+ data[i++] += sta->wep_weak_iv_count; \
+ data[i++] += sta->num_duplicates; \
+ data[i++] += sta->rx_fragments; \
+ data[i++] += sta->rx_dropped; \
+ \
+ data[i++] += sta->tx_packets; \
+ data[i++] += sta->tx_bytes; \
+ data[i++] += sta->tx_fragments; \
+ data[i++] += sta->tx_filtered_count; \
+ data[i++] += sta->tx_retry_failed; \
+ data[i++] += sta->tx_retry_count; \
+ data[i++] += sta->beacon_loss_count; \
+ } while (0)
+
+ /* For Managed stations, find the single station based on BSSID
+ * and use that. For interface types, iterate through all available
+ * stations and add stats for any station that is assigned to this
+ * network device.
+ */
+
+ rcu_read_lock();
+
+ if (sdata->vif.type == NL80211_IFTYPE_STATION) {
+ sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid);
+
+ if (!(sta && !WARN_ON(sta->sdata->dev != dev)))
+ goto do_survey;
+
+ i = 0;
+ ADD_STA_STATS(sta);
+
+ data[i++] = sta->sta_state;
+
+ sinfo.filled = 0;
+ sta_set_sinfo(sta, &sinfo);
+
+ if (sinfo.filled | STATION_INFO_TX_BITRATE)
+ data[i] = 100000 *
+ cfg80211_calculate_bitrate(&sinfo.txrate);
+ i++;
+ if (sinfo.filled | STATION_INFO_RX_BITRATE)
+ data[i] = 100000 *
+ cfg80211_calculate_bitrate(&sinfo.rxrate);
+ i++;
+
+ if (sinfo.filled | STATION_INFO_SIGNAL_AVG)
+ data[i] = (u8)sinfo.signal_avg;
+ i++;
+ } else {
+ list_for_each_entry_rcu(sta, &local->sta_list, list) {
+ /* Make sure this station belongs to the proper dev */
+ if (sta->sdata->dev != dev)
+ continue;
+
+ i = 0;
+ ADD_STA_STATS(sta);
+ }
+ }
+
+do_survey:
+ i = STA_STATS_LEN - STA_STATS_SURVEY_LEN;
+ /* Get survey stats for current channel */
+ q = 0;
+ while (true) {
+ survey.filled = 0;
+ if (drv_get_survey(local, q, &survey) != 0) {
+ survey.filled = 0;
+ break;
+ }
+
+ if (survey.channel &&
+ (local->oper_channel->center_freq ==
+ survey.channel->center_freq))
+ break;
+ q++;
+ }
+
+ if (survey.filled)
+ data[i++] = survey.channel->center_freq;
+ else
+ data[i++] = 0;
+ if (survey.filled & SURVEY_INFO_NOISE_DBM)
+ data[i++] = (u8)survey.noise;
+ else
+ data[i++] = -1LL;
+ if (survey.filled & SURVEY_INFO_CHANNEL_TIME)
+ data[i++] = survey.channel_time;
+ else
+ data[i++] = -1LL;
+ if (survey.filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
+ data[i++] = survey.channel_time_busy;
+ else
+ data[i++] = -1LL;
+ if (survey.filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
+ data[i++] = survey.channel_time_ext_busy;
+ else
+ data[i++] = -1LL;
+ if (survey.filled & SURVEY_INFO_CHANNEL_TIME_RX)
+ data[i++] = survey.channel_time_rx;
+ else
+ data[i++] = -1LL;
+ if (survey.filled & SURVEY_INFO_CHANNEL_TIME_TX)
+ data[i++] = survey.channel_time_tx;
+ else
+ data[i++] = -1LL;
+
+ rcu_read_unlock();
+
+ if (WARN_ON(i != STA_STATS_LEN))
+ return;
+
+ drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN]));
+}
+
+static void ieee80211_get_et_strings(struct wiphy *wiphy,
+ struct net_device *dev,
+ u32 sset, u8 *data)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ int sz_sta_stats = 0;
+
+ if (sset == ETH_SS_STATS) {
+ sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats);
+ memcpy(data, *ieee80211_gstrings_sta_stats, sz_sta_stats);
+ }
+ drv_get_et_strings(sdata, sset, &(data[sz_sta_stats]));
+}
static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
int idx, u8 *mac, struct station_info *sinfo)
@@ -1364,6 +1538,11 @@ static int ieee80211_update_mesh_config(struct wiphy *wiphy,
return -ENOTSUPP;
conf->rssi_threshold = nconf->rssi_threshold;
}
+ if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
+ conf->ht_opmode = nconf->ht_opmode;
+ sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
+ ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
+ }
return 0;
}
@@ -2794,4 +2973,7 @@ struct cfg80211_ops mac80211_config_ops = {
#ifdef CONFIG_PM
.set_wakeup = ieee80211_set_wakeup,
#endif
+ .get_et_sset_count = ieee80211_get_et_sset_count,
+ .get_et_stats = ieee80211_get_et_stats,
+ .get_et_strings = ieee80211_get_et_strings,
};
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index 4a0e559cb26..6d33a0c743a 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -35,6 +35,43 @@ static inline void drv_tx_frags(struct ieee80211_local *local,
local->ops->tx_frags(&local->hw, vif, sta, skbs);
}
+static inline void drv_get_et_strings(struct ieee80211_sub_if_data *sdata,
+ u32 sset, u8 *data)
+{
+ struct ieee80211_local *local = sdata->local;
+ if (local->ops->get_et_strings) {
+ trace_drv_get_et_strings(local, sset);
+ local->ops->get_et_strings(&local->hw, &sdata->vif, sset, data);
+ trace_drv_return_void(local);
+ }
+}
+
+static inline void drv_get_et_stats(struct ieee80211_sub_if_data *sdata,
+ struct ethtool_stats *stats,
+ u64 *data)
+{
+ struct ieee80211_local *local = sdata->local;
+ if (local->ops->get_et_stats) {
+ trace_drv_get_et_stats(local);
+ local->ops->get_et_stats(&local->hw, &sdata->vif, stats, data);
+ trace_drv_return_void(local);
+ }
+}
+
+static inline int drv_get_et_sset_count(struct ieee80211_sub_if_data *sdata,
+ int sset)
+{
+ struct ieee80211_local *local = sdata->local;
+ int rv = 0;
+ if (local->ops->get_et_sset_count) {
+ trace_drv_get_et_sset_count(local, sset);
+ rv = local->ops->get_et_sset_count(&local->hw, &sdata->vif,
+ sset);
+ trace_drv_return_int(local, rv);
+ }
+ return rv;
+}
+
static inline int drv_start(struct ieee80211_local *local)
{
int ret;
diff --git a/net/mac80211/driver-trace.h b/net/mac80211/driver-trace.h
index 7c0754bed61..6de00b2c268 100644
--- a/net/mac80211/driver-trace.h
+++ b/net/mac80211/driver-trace.h
@@ -161,6 +161,21 @@ DEFINE_EVENT(local_only_evt, drv_start,
TP_ARGS(local)
);
+DEFINE_EVENT(local_u32_evt, drv_get_et_strings,
+ TP_PROTO(struct ieee80211_local *local, u32 sset),
+ TP_ARGS(local, sset)
+);
+
+DEFINE_EVENT(local_u32_evt, drv_get_et_sset_count,
+ TP_PROTO(struct ieee80211_local *local, u32 sset),
+ TP_ARGS(local, sset)
+);
+
+DEFINE_EVENT(local_only_evt, drv_get_et_stats,
+ TP_PROTO(struct ieee80211_local *local),
+ TP_ARGS(local)
+);
+
DEFINE_EVENT(local_only_evt, drv_suspend,
TP_PROTO(struct ieee80211_local *local),
TP_ARGS(local)
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index d307d3b3e32..ebafba61c2f 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -164,7 +164,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
pos = ieee80211_ie_build_ht_cap(pos, &sband->ht_cap,
sband->ht_cap.cap);
pos = ieee80211_ie_build_ht_oper(pos, &sband->ht_cap,
- chan, channel_type);
+ chan, channel_type, 0);
}
if (local->hw.queues >= IEEE80211_NUM_ACS) {
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index fabee974bf6..3f3cd50fff1 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1497,7 +1497,8 @@ u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
u16 cap);
u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
struct ieee80211_channel *channel,
- enum nl80211_channel_type channel_type);
+ enum nl80211_channel_type channel_type,
+ u16 prot_mode);
/* internal work items */
void ieee80211_work_init(struct ieee80211_local *local);
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 775627166e4..0675a2fec6a 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -76,6 +76,7 @@ bool mesh_matches_local(struct ieee80211_sub_if_data *sdata,
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
struct ieee80211_local *local = sdata->local;
u32 basic_rates = 0;
+ enum nl80211_channel_type sta_channel_type = NL80211_CHAN_NO_HT;
/*
* As support for each feature is added, check for matching
@@ -102,10 +103,15 @@ bool mesh_matches_local(struct ieee80211_sub_if_data *sdata,
if (sdata->vif.bss_conf.basic_rates != basic_rates)
goto mismatch;
- /* disallow peering with mismatched channel types for now */
+ if (ie->ht_operation)
+ sta_channel_type =
+ ieee80211_ht_oper_to_channel_type(ie->ht_operation);
+
+ /* Disallow HT40+/- mismatch */
if (ie->ht_operation &&
- (local->_oper_channel_type !=
- ieee80211_ht_oper_to_channel_type(ie->ht_operation)))
+ local->_oper_channel_type > NL80211_CHAN_HT20 &&
+ sta_channel_type > NL80211_CHAN_HT20 &&
+ local->_oper_channel_type != sta_channel_type)
goto mismatch;
return true;
@@ -396,7 +402,8 @@ int mesh_add_ht_oper_ie(struct sk_buff *skb,
return -ENOMEM;
pos = skb_put(skb, 2 + sizeof(struct ieee80211_ht_operation));
- ieee80211_ie_build_ht_oper(pos, ht_cap, channel, channel_type);
+ ieee80211_ie_build_ht_oper(pos, ht_cap, channel, channel_type,
+ sdata->vif.bss_conf.ht_operation_mode);
return 0;
}
@@ -588,12 +595,15 @@ void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata)
set_bit(MESH_WORK_HOUSEKEEPING, &ifmsh->wrkq_flags);
ieee80211_mesh_root_setup(ifmsh);
ieee80211_queue_work(&local->hw, &sdata->work);
+ sdata->vif.bss_conf.ht_operation_mode =
+ ifmsh->mshcfg.ht_opmode;
sdata->vif.bss_conf.beacon_int = MESH_DEFAULT_BEACON_INTERVAL;
sdata->vif.bss_conf.basic_rates =
ieee80211_mandatory_rates(sdata->local,
sdata->local->hw.conf.channel->band);
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON |
BSS_CHANGED_BEACON_ENABLED |
+ BSS_CHANGED_HT |
BSS_CHANGED_BASIC_RATES |
BSS_CHANGED_BEACON_INT);
}
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index 1ff2a5c63e4..8cc8461b48a 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -102,12 +102,70 @@ static struct sta_info *mesh_plink_alloc(struct ieee80211_sub_if_data *sdata,
set_sta_flag(sta, WLAN_STA_WME);
- if (sta_info_insert(sta))
- return NULL;
-
return sta;
}
+/** mesh_set_ht_prot_mode - set correct HT protection mode
+ *
+ * Section 9.23.3.5 of IEEE 80211s standard describes the protection rules for
+ * HT mesh STA in a MBSS. Three HT protection modes are supported for now,
+ * non-HT mixed mode, 20MHz-protection and no-protection mode. non-HT mixed
+ * mode is selected if any non-HT peers are present in our MBSS.
+ * 20MHz-protection mode is selected if all peers in our 20/40MHz MBSS support
+ * HT and atleast one HT20 peer is present. Otherwise no-protection mode is
+ * selected.
+ */
+static u32 mesh_set_ht_prot_mode(struct ieee80211_sub_if_data *sdata)
+{
+ struct ieee80211_local *local = sdata->local;
+ struct sta_info *sta;
+ u32 changed = 0;
+ u16 ht_opmode;
+ bool non_ht_sta = false, ht20_sta = false;
+
+ if (local->_oper_channel_type == NL80211_CHAN_NO_HT)
+ return 0;
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(sta, &local->sta_list, list) {
+ if (sdata == sta->sdata &&
+ sta->plink_state == NL80211_PLINK_ESTAB) {
+ switch (sta->ch_type) {
+ case NL80211_CHAN_NO_HT:
+ mpl_dbg("mesh_plink %pM: nonHT sta (%pM) is present",
+ sdata->vif.addr, sta->sta.addr);
+ non_ht_sta = true;
+ goto out;
+ case NL80211_CHAN_HT20:
+ mpl_dbg("mesh_plink %pM: HT20 sta (%pM) is present",
+ sdata->vif.addr, sta->sta.addr);
+ ht20_sta = true;
+ default:
+ break;
+ }
+ }
+ }
+out:
+ rcu_read_unlock();
+
+ if (non_ht_sta)
+ ht_opmode = IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED;
+ else if (ht20_sta && local->_oper_channel_type > NL80211_CHAN_HT20)
+ ht_opmode = IEEE80211_HT_OP_MODE_PROTECTION_20MHZ;
+ else
+ ht_opmode = IEEE80211_HT_OP_MODE_PROTECTION_NONE;
+
+ if (sdata->vif.bss_conf.ht_operation_mode != ht_opmode) {
+ sdata->vif.bss_conf.ht_operation_mode = ht_opmode;
+ sdata->u.mesh.mshcfg.ht_opmode = ht_opmode;
+ changed = BSS_CHANGED_HT;
+ mpl_dbg("mesh_plink %pM: protection mode changed to %d",
+ sdata->vif.addr, ht_opmode);
+ }
+
+ return changed;
+}
+
/**
* __mesh_plink_deactivate - deactivate mesh peer link
*
@@ -281,6 +339,7 @@ static struct sta_info *mesh_peer_init(struct ieee80211_sub_if_data *sdata,
struct ieee80211_supported_band *sband;
u32 rates, basic_rates = 0;
struct sta_info *sta;
+ bool insert = false;
sband = local->hw.wiphy->bands[band];
rates = ieee80211_sta_get_rates(local, elems, band, &basic_rates);
@@ -290,6 +349,7 @@ static struct sta_info *mesh_peer_init(struct ieee80211_sub_if_data *sdata,
sta = mesh_plink_alloc(sdata, addr);
if (!sta)
return NULL;
+ insert = true;
}
spin_lock_bh(&sta->lock);
@@ -303,9 +363,21 @@ static struct sta_info *mesh_peer_init(struct ieee80211_sub_if_data *sdata,
else
memset(&sta->sta.ht_cap, 0, sizeof(sta->sta.ht_cap));
+ if (elems->ht_operation) {
+ if (!(elems->ht_operation->ht_param &
+ IEEE80211_HT_PARAM_CHAN_WIDTH_ANY))
+ sta->sta.ht_cap.cap &=
+ ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
+ sta->ch_type =
+ ieee80211_ht_oper_to_channel_type(elems->ht_operation);
+ }
+
rate_control_rate_init(sta);
spin_unlock_bh(&sta->lock);
+ if (insert && sta_info_insert(sta))
+ return NULL;
+
return sta;
}
@@ -487,9 +559,10 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
enum plink_event event;
enum ieee80211_self_protected_actioncode ftype;
size_t baselen;
- bool deactivated, matches_local = true;
+ bool matches_local = true;
u8 ie_len;
u8 *baseaddr;
+ u32 changed = 0;
__le16 plid, llid, reason;
#ifdef CONFIG_MAC80211_VERBOSE_MPL_DEBUG
static const char *mplstates[] = {
@@ -775,7 +848,8 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
sta->plink_state = NL80211_PLINK_ESTAB;
spin_unlock_bh(&sta->lock);
mesh_plink_inc_estab_count(sdata);
- ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON);
+ changed |= mesh_set_ht_prot_mode(sdata);
+ changed |= BSS_CHANGED_BEACON;
mpl_dbg("Mesh plink with %pM ESTABLISHED\n",
sta->sta.addr);
break;
@@ -810,7 +884,8 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
sta->plink_state = NL80211_PLINK_ESTAB;
spin_unlock_bh(&sta->lock);
mesh_plink_inc_estab_count(sdata);
- ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON);
+ changed |= mesh_set_ht_prot_mode(sdata);
+ changed |= BSS_CHANGED_BEACON;
mpl_dbg("Mesh plink with %pM ESTABLISHED\n",
sta->sta.addr);
mesh_plink_frame_tx(sdata,
@@ -828,13 +903,13 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
case CLS_ACPT:
reason = cpu_to_le16(WLAN_REASON_MESH_CLOSE);
sta->reason = reason;
- deactivated = __mesh_plink_deactivate(sta);
+ __mesh_plink_deactivate(sta);
sta->plink_state = NL80211_PLINK_HOLDING;
llid = sta->llid;
mod_plink_timer(sta, dot11MeshHoldingTimeout(sdata));
spin_unlock_bh(&sta->lock);
- if (deactivated)
- ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON);
+ changed |= mesh_set_ht_prot_mode(sdata);
+ changed |= BSS_CHANGED_BEACON;
mesh_plink_frame_tx(sdata, WLAN_SP_MESH_PEERING_CLOSE,
sta->sta.addr, llid, plid, reason);
break;
@@ -881,4 +956,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
}
rcu_read_unlock();
+
+ if (changed)
+ ieee80211_bss_info_change_notify(sdata, changed);
}
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index b1c617fdabd..52cd301245a 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -210,7 +210,7 @@ static u32 ieee80211_config_ht_tx(struct ieee80211_sub_if_data *sdata,
disable_40 = true;
if (sta && (!reconfig ||
- (disable_40 != !!(sta->sta.ht_cap.cap &
+ (disable_40 != !(sta->sta.ht_cap.cap &
IEEE80211_HT_CAP_SUP_WIDTH_20_40)))) {
if (disable_40)
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index e920b229fb8..3bb24a121c9 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -362,6 +362,7 @@ struct sta_info {
struct timer_list plink_timer;
s64 t_offset;
s64 t_offset_setpoint;
+ enum nl80211_channel_type ch_type;
#endif
#ifdef CONFIG_MAC80211_DEBUGFS
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index d9a747d387f..22f2216b397 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1663,7 +1663,8 @@ u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
struct ieee80211_channel *channel,
- enum nl80211_channel_type channel_type)
+ enum nl80211_channel_type channel_type,
+ u16 prot_mode)
{
struct ieee80211_ht_operation *ht_oper;
/* Build HT Information */
@@ -1689,11 +1690,7 @@ u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
channel_type != NL80211_CHAN_HT20)
ht_oper->ht_param |= IEEE80211_HT_PARAM_CHAN_WIDTH_ANY;
- /*
- * Note: According to 802.11n-2009 9.13.3.1, HT Protection field and
- * RIFS Mode are reserved in IBSS mode, therefore keep them at 0
- */
- ht_oper->operation_mode = 0x0000;
+ ht_oper->operation_mode = cpu_to_le16(prot_mode);
ht_oper->stbc_param = 0x0000;
/* It seems that Basic MCS set and Supported MCS set
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-06 05:16:22 +0000