24 files changed, 81 insertions, 172 deletions

diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
index d615f9f7506a..74091d33ed6c 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.c
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -2976,7 +2976,6 @@ static int ath6kl_change_station(struct wiphy *wiphy, struct net_device *dev,
 static int ath6kl_remain_on_channel(struct wiphy *wiphy,
                                     struct wireless_dev *wdev,
                                     struct ieee80211_channel *chan,
-                                    enum nl80211_channel_type channel_type,
                                     unsigned int duration,
                                     u64 *cookie)
 {
@@ -3135,10 +3134,8 @@ static bool ath6kl_is_p2p_go_ssid(const u8 *buf, size_t len)
 
 static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
                           struct ieee80211_channel *chan, bool offchan,
-                          enum nl80211_channel_type channel_type,
-                          bool channel_type_valid, unsigned int wait,
-                          const u8 *buf, size_t len, bool no_cck,
-                          bool dont_wait_for_ack, u64 *cookie)
+                          unsigned int wait, const u8 *buf, size_t len,
+                          bool no_cck, bool dont_wait_for_ack, u64 *cookie)
 {
         struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev);
         struct ath6kl *ar = ath6kl_priv(vif->ndev);
diff --git a/drivers/net/wireless/ath/ath6kl/wmi.c b/drivers/net/wireless/ath/ath6kl/wmi.c
index c30ab4b11d61..0e05c41cdcfc 100644
--- a/drivers/net/wireless/ath/ath6kl/wmi.c
+++ b/drivers/net/wireless/ath/ath6kl/wmi.c
@@ -474,7 +474,7 @@ static int ath6kl_wmi_remain_on_chnl_event_rx(struct wmi *wmi, u8 *datap,
                 return -EINVAL;
         }
         id = vif->last_roc_id;
-        cfg80211_ready_on_channel(&vif->wdev, id, chan, NL80211_CHAN_NO_HT,
+        cfg80211_ready_on_channel(&vif->wdev, id, chan,
                                   dur, GFP_ATOMIC);
 
         return 0;
@@ -513,8 +513,7 @@ static int ath6kl_wmi_cancel_remain_on_chnl_event_rx(struct wmi *wmi,
         else
                 id = vif->last_roc_id; /* timeout on uncanceled r-o-c */
         vif->last_cancel_roc_id = 0;
-        cfg80211_remain_on_channel_expired(&vif->wdev, id, chan,
-                                           NL80211_CHAN_NO_HT, GFP_ATOMIC);
+        cfg80211_remain_on_channel_expired(&vif->wdev, id, chan, GFP_ATOMIC);
 
         return 0;
 }
diff --git a/drivers/net/wireless/iwlwifi/dvm/dev.h b/drivers/net/wireless/iwlwifi/dvm/dev.h
index 8141f91c3725..29c571a56251 100644
--- a/drivers/net/wireless/iwlwifi/dvm/dev.h
+++ b/drivers/net/wireless/iwlwifi/dvm/dev.h
@@ -789,7 +789,6 @@ struct iwl_priv {
         /* remain-on-channel offload support */
         struct ieee80211_channel *hw_roc_channel;
         struct delayed_work hw_roc_disable_work;
-        enum nl80211_channel_type hw_roc_chantype;
         int hw_roc_duration;
         bool hw_roc_setup, hw_roc_start_notified;
 
diff --git a/drivers/net/wireless/iwlwifi/dvm/mac80211.c b/drivers/net/wireless/iwlwifi/dvm/mac80211.c
index e75d80341f28..852edb02e5f6 100644
--- a/drivers/net/wireless/iwlwifi/dvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/dvm/mac80211.c
@@ -1034,7 +1034,6 @@ done:
 static int iwlagn_mac_remain_on_channel(struct ieee80211_hw *hw,
                                      struct ieee80211_vif *vif,
                                      struct ieee80211_channel *channel,
-                                     enum nl80211_channel_type channel_type,
                                      int duration)
 {
         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
@@ -1066,7 +1065,6 @@ static int iwlagn_mac_remain_on_channel(struct ieee80211_hw *hw,
         }
 
         priv->hw_roc_channel = channel;
-        priv->hw_roc_chantype = channel_type;
         /* convert from ms to TU */
         priv->hw_roc_duration = DIV_ROUND_UP(1000 * duration, 1024);
         priv->hw_roc_start_notified = false;
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 3baa51f1bb83..b0338543547b 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -1455,7 +1455,6 @@ static void hw_roc_done(struct work_struct *work)
 static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
                               struct ieee80211_vif *vif,
                               struct ieee80211_channel *chan,
-                              enum nl80211_channel_type channel_type,
                               int duration)
 {
         struct mac80211_hwsim_data *hwsim = hw->priv;
diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c
index 8e829b251d83..f69190b492aa 100644
--- a/drivers/net/wireless/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/mwifiex/cfg80211.c
@@ -180,10 +180,8 @@ mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
 static int
 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
                          struct ieee80211_channel *chan, bool offchan,
-                         enum nl80211_channel_type channel_type,
-                         bool channel_type_valid, unsigned int wait,
-                         const u8 *buf, size_t len, bool no_cck,
-                         bool dont_wait_for_ack, u64 *cookie)
+                         unsigned int wait, const u8 *buf, size_t len,
+                         bool no_cck, bool dont_wait_for_ack, u64 *cookie)
 {
         struct sk_buff *skb;
         u16 pkt_len;
@@ -253,7 +251,6 @@ static int
 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
                                    struct wireless_dev *wdev,
                                    struct ieee80211_channel *chan,
-                                   enum nl80211_channel_type channel_type,
                                    unsigned int duration, u64 *cookie)
 {
         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
@@ -271,15 +268,14 @@ mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
         }
 
         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
-                                         &channel_type, duration);
+                                         duration);
 
         if (!ret) {
                 *cookie = random32() | 1;
                 priv->roc_cfg.cookie = *cookie;
                 priv->roc_cfg.chan = *chan;
-                priv->roc_cfg.chan_type = channel_type;
 
-                cfg80211_ready_on_channel(wdev, *cookie, chan, channel_type,
+                cfg80211_ready_on_channel(wdev, *cookie, chan,
                                           duration, GFP_ATOMIC);
 
                 wiphy_dbg(wiphy, "info: ROC, cookie = 0x%llx\n", *cookie);
@@ -302,13 +298,11 @@ mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
                 return -ENOENT;
 
         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
-                                         &priv->roc_cfg.chan,
-                                         &priv->roc_cfg.chan_type, 0);
+                                         &priv->roc_cfg.chan, 0);
 
         if (!ret) {
                 cfg80211_remain_on_channel_expired(wdev, cookie,
                                                    &priv->roc_cfg.chan,
-                                                   priv->roc_cfg.chan_type,
                                                    GFP_ATOMIC);
 
                 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h
index 81f8772dcb07..771717df1c59 100644
--- a/drivers/net/wireless/mwifiex/main.h
+++ b/drivers/net/wireless/mwifiex/main.h
@@ -371,7 +371,6 @@ struct wps {
 struct mwifiex_roc_cfg {
         u64 cookie;
         struct ieee80211_channel chan;
-        enum nl80211_channel_type chan_type;
 };
 
 struct mwifiex_adapter;
@@ -1016,7 +1015,6 @@ int mwifiex_get_ver_ext(struct mwifiex_private *priv);
 
 int mwifiex_remain_on_chan_cfg(struct mwifiex_private *priv, u16 action,
                                struct ieee80211_channel *chan,
-                               enum nl80211_channel_type *channel_type,
                                unsigned int duration);
 
 int mwifiex_set_bss_role(struct mwifiex_private *priv, u8 bss_role);
diff --git a/drivers/net/wireless/mwifiex/sta_event.c b/drivers/net/wireless/mwifiex/sta_event.c
index 8132119e1a21..78dfa31c908c 100644
--- a/drivers/net/wireless/mwifiex/sta_event.c
+++ b/drivers/net/wireless/mwifiex/sta_event.c
@@ -424,7 +424,6 @@ int mwifiex_process_sta_event(struct mwifiex_private *priv)
                 cfg80211_remain_on_channel_expired(priv->wdev,
                                                    priv->roc_cfg.cookie,
                                                    &priv->roc_cfg.chan,
-                                                   priv->roc_cfg.chan_type,
                                                    GFP_ATOMIC);
 
                 memset(&priv->roc_cfg, 0x00, sizeof(struct mwifiex_roc_cfg));
diff --git a/drivers/net/wireless/mwifiex/sta_ioctl.c b/drivers/net/wireless/mwifiex/sta_ioctl.c
index 552d72ed055a..24af6ba7d8a1 100644
--- a/drivers/net/wireless/mwifiex/sta_ioctl.c
+++ b/drivers/net/wireless/mwifiex/sta_ioctl.c
@@ -1046,7 +1046,6 @@ mwifiex_get_ver_ext(struct mwifiex_private *priv)
 int
 mwifiex_remain_on_chan_cfg(struct mwifiex_private *priv, u16 action,
                            struct ieee80211_channel *chan,
-                           enum nl80211_channel_type *ct,
                            unsigned int duration)
 {
         struct host_cmd_ds_remain_on_chan roc_cfg;
@@ -1056,7 +1055,7 @@ mwifiex_remain_on_chan_cfg(struct mwifiex_private *priv, u16 action,
         roc_cfg.action = cpu_to_le16(action);
         if (action == HostCmd_ACT_GEN_SET) {
                 roc_cfg.band_cfg = chan->band;
-                sc = mwifiex_chan_type_to_sec_chan_offset(*ct);
+                sc = mwifiex_chan_type_to_sec_chan_offset(NL80211_CHAN_NO_HT);
                 roc_cfg.band_cfg |= (sc << 2);
 
                 roc_cfg.channel =
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index c2c185febb87..1effe0682d28 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1791,7 +1791,6 @@ struct cfg80211_ops {
         int     (*remain_on_channel)(struct wiphy *wiphy,
                                      struct wireless_dev *wdev,
                                      struct ieee80211_channel *chan,
-                                     enum nl80211_channel_type channel_type,
                                      unsigned int duration,
                                      u64 *cookie);
         int     (*cancel_remain_on_channel)(struct wiphy *wiphy,
@@ -1800,10 +1799,8 @@ struct cfg80211_ops {
 
         int     (*mgmt_tx)(struct wiphy *wiphy, struct wireless_dev *wdev,
                           struct ieee80211_channel *chan, bool offchan,
-                          enum nl80211_channel_type channel_type,
-                          bool channel_type_valid, unsigned int wait,
-                          const u8 *buf, size_t len, bool no_cck,
-                          bool dont_wait_for_ack, u64 *cookie);
+                          unsigned int wait, const u8 *buf, size_t len,
+                          bool no_cck, bool dont_wait_for_ack, u64 *cookie);
         int     (*mgmt_tx_cancel_wait)(struct wiphy *wiphy,
                                        struct wireless_dev *wdev,
                                        u64 cookie);
@@ -3350,14 +3347,12 @@ void cfg80211_disconnected(struct net_device *dev, u16 reason,
  * @wdev: wireless device
  * @cookie: the request cookie
  * @chan: The current channel (from remain_on_channel request)
- * @channel_type: Channel type
  * @duration: Duration in milliseconds that the driver intents to remain on the
  *      channel
  * @gfp: allocation flags
  */
 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
                                struct ieee80211_channel *chan,
-                               enum nl80211_channel_type channel_type,
                                unsigned int duration, gfp_t gfp);
 
 /**
@@ -3365,12 +3360,10 @@ void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
  * @wdev: wireless device
  * @cookie: the request cookie
  * @chan: The current channel (from remain_on_channel request)
- * @channel_type: Channel type
  * @gfp: allocation flags
  */
 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
                                         struct ieee80211_channel *chan,
-                                        enum nl80211_channel_type channel_type,
                                         gfp_t gfp);
 
 
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index e1293c7e4d2c..12093778b057 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -2550,7 +2550,6 @@ struct ieee80211_ops {
         int (*remain_on_channel)(struct ieee80211_hw *hw,
                                  struct ieee80211_vif *vif,
                                  struct ieee80211_channel *chan,
-                                 enum nl80211_channel_type channel_type,
                                  int duration);
         int (*cancel_remain_on_channel)(struct ieee80211_hw *hw);
         int (*set_ringparam)(struct ieee80211_hw *hw, u32 tx, u32 rx);
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 1a9a819cfab0..43cd6fa084c5 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -401,8 +401,7 @@
  *      a response while being associated to an AP on another channel.
  *      %NL80211_ATTR_IFINDEX is used to specify which interface (and thus
  *      radio) is used. %NL80211_ATTR_WIPHY_FREQ is used to specify the
- *      frequency for the operation and %NL80211_ATTR_WIPHY_CHANNEL_TYPE may be
- *      optionally used to specify additional channel parameters.
+ *      frequency for the operation.
  *      %NL80211_ATTR_DURATION is used to specify the duration in milliseconds
  *      to remain on the channel. This command is also used as an event to
  *      notify when the requested duration starts (it may take a while for the
@@ -440,12 +439,11 @@
  *      as an event indicating reception of a frame that was not processed in
  *      kernel code, but is for us (i.e., which may need to be processed in a
  *      user space application). %NL80211_ATTR_FRAME is used to specify the
- *      frame contents (including header). %NL80211_ATTR_WIPHY_FREQ (and
- *      optionally %NL80211_ATTR_WIPHY_CHANNEL_TYPE) is used to indicate on
- *      which channel the frame is to be transmitted or was received. If this
- *      channel is not the current channel (remain-on-channel or the
- *      operational channel) the device will switch to the given channel and
- *      transmit the frame, optionally waiting for a response for the time
+ *      frame contents (including header). %NL80211_ATTR_WIPHY_FREQ is used
+ *      to indicate on which channel the frame is to be transmitted or was
+ *      received. If this channel is not the current channel (remain-on-channel
+ *      or the operational channel) the device will switch to the given channel
+ *      and transmit the frame, optionally waiting for a response for the time
  *      specified using %NL80211_ATTR_DURATION. When called, this operation
  *      returns a cookie (%NL80211_ATTR_COOKIE) that will be included with the
  *      TX status event pertaining to the TX request.
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 18926aea480c..ac0241e3539b 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2236,7 +2236,6 @@ static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
 static int ieee80211_start_roc_work(struct ieee80211_local *local,
                                     struct ieee80211_sub_if_data *sdata,
                                     struct ieee80211_channel *channel,
-                                    enum nl80211_channel_type channel_type,
                                     unsigned int duration, u64 *cookie,
                                     struct sk_buff *txskb)
 {
@@ -2254,7 +2253,6 @@ static int ieee80211_start_roc_work(struct ieee80211_local *local,
                 return -ENOMEM;
 
         roc->chan = channel;
-        roc->chan_type = channel_type;
         roc->duration = duration;
         roc->req_duration = duration;
         roc->frame = txskb;
@@ -2287,8 +2285,7 @@ static int ieee80211_start_roc_work(struct ieee80211_local *local,
         if (!duration)
                 duration = 10;
 
-        ret = drv_remain_on_channel(local, sdata, channel, channel_type,
-                                    duration);
+        ret = drv_remain_on_channel(local, sdata, channel, duration);
         if (ret) {
                 kfree(roc);
                 return ret;
@@ -2299,8 +2296,7 @@ static int ieee80211_start_roc_work(struct ieee80211_local *local,
 
  out_check_combine:
         list_for_each_entry(tmp, &local->roc_list, list) {
-                if (tmp->chan != channel || tmp->chan_type != channel_type ||
-                    tmp->sdata != sdata)
+                if (tmp->chan != channel || tmp->sdata != sdata)
                         continue;
 
                 /*
@@ -2417,7 +2413,6 @@ static int ieee80211_start_roc_work(struct ieee80211_local *local,
 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
                                        struct wireless_dev *wdev,
                                        struct ieee80211_channel *chan,
-                                       enum nl80211_channel_type channel_type,
                                        unsigned int duration,
                                        u64 *cookie)
 {
@@ -2426,7 +2421,7 @@ static int ieee80211_remain_on_channel(struct wiphy *wiphy,
         int ret;
 
         mutex_lock(&local->mtx);
-        ret = ieee80211_start_roc_work(local, sdata, chan, channel_type,
+        ret = ieee80211_start_roc_work(local, sdata, chan,
                                        duration, cookie, NULL);
         mutex_unlock(&local->mtx);
 
@@ -2519,10 +2514,8 @@ static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
 
 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
                              struct ieee80211_channel *chan, bool offchan,
-                             enum nl80211_channel_type channel_type,
-                             bool channel_type_valid, unsigned int wait,
-                             const u8 *buf, size_t len, bool no_cck,
-                             bool dont_wait_for_ack, u64 *cookie)
+                             unsigned int wait, const u8 *buf, size_t len,
+                             bool no_cck, bool dont_wait_for_ack, u64 *cookie)
 {
         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
         struct ieee80211_local *local = sdata->local;
@@ -2591,14 +2584,10 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
                 rcu_read_lock();
                 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
 
-                if (chanctx_conf) {
+                if (chanctx_conf)
                         need_offchan = chan != chanctx_conf->channel;
-                        if (channel_type_valid &&
-                            channel_type != chanctx_conf->channel_type)
-                                need_offchan = true;
-                } else {
+                else
                         need_offchan = true;
-                }
                 rcu_read_unlock();
         }
 
@@ -2633,7 +2622,7 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
                         local->hw.offchannel_tx_hw_queue;
 
         /* This will handle all kinds of coalescing and immediate TX */
-        ret = ieee80211_start_roc_work(local, sdata, chan, channel_type,
+        ret = ieee80211_start_roc_work(local, sdata, chan,
                                        wait, cookie, skb);
         if (ret)
                 kfree_skb(skb);
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index 68c27aaf5c93..c6560cc7a9d6 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -738,16 +738,15 @@ static inline int drv_get_antenna(struct ieee80211_local *local,
 static inline int drv_remain_on_channel(struct ieee80211_local *local,
                                         struct ieee80211_sub_if_data *sdata,
                                         struct ieee80211_channel *chan,
-                                        enum nl80211_channel_type chantype,
                                         unsigned int duration)
 {
         int ret;
 
         might_sleep();
 
-        trace_drv_remain_on_channel(local, sdata, chan, chantype, duration);
+        trace_drv_remain_on_channel(local, sdata, chan, duration);
         ret = local->ops->remain_on_channel(&local->hw, &sdata->vif,
-                                            chan, chantype, duration);
+                                            chan, duration);
         trace_drv_return_int(local, ret);
 
         return ret;
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index d5da0fe14318..fba4b1f425c1 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -348,7 +348,6 @@ struct ieee80211_roc_work {
         struct ieee80211_sub_if_data *sdata;
 
         struct ieee80211_channel *chan;
-        enum nl80211_channel_type chan_type;
 
         bool started, abort, hw_begun, notified;
 
@@ -1048,7 +1047,6 @@ struct ieee80211_local {
 
         /* Temporary remain-on-channel for off-channel operations */
         struct ieee80211_channel *tmp_channel;
-        enum nl80211_channel_type tmp_channel_type;
 
         /* channel contexts */
         struct list_head chanctx_list;
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 70e87600cacc..b229cded4567 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -115,7 +115,7 @@ static u32 ieee80211_hw_conf_chan(struct ieee80211_local *local)
                         channel_type = NL80211_CHAN_NO_HT;
         } else if (local->tmp_channel) {
                 chan = local->tmp_channel;
-                channel_type = local->tmp_channel_type;
+                channel_type = NL80211_CHAN_NO_HT;
         } else {
                 chan = local->_oper_channel;
                 channel_type = local->_oper_channel_type;
diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c
index 7f8a36510813..5abddfe3e101 100644
--- a/net/mac80211/offchannel.c
+++ b/net/mac80211/offchannel.c
@@ -205,8 +205,8 @@ void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc)
                 }
         } else {
                 cfg80211_ready_on_channel(&roc->sdata->wdev, roc->cookie,
-                                          roc->chan, roc->chan_type,
-                                          roc->req_duration, GFP_KERNEL);
+                                          roc->chan, roc->req_duration,
+                                          GFP_KERNEL);
         }
 
         roc->notified = true;
@@ -284,7 +284,6 @@ void ieee80211_start_next_roc(struct ieee80211_local *local)
                         duration = 10;
 
                 ret = drv_remain_on_channel(local, roc->sdata, roc->chan,
-                                            roc->chan_type,
                                             duration);
 
                 roc->started = true;
@@ -321,7 +320,7 @@ void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc)
         if (!roc->mgmt_tx_cookie)
                 cfg80211_remain_on_channel_expired(&roc->sdata->wdev,
                                                    roc->cookie, roc->chan,
-                                                   roc->chan_type, GFP_KERNEL);
+                                                   GFP_KERNEL);
 
         list_for_each_entry_safe(dep, tmp, &roc->dependents, list)
                 ieee80211_roc_notify_destroy(dep);
@@ -359,7 +358,6 @@ void ieee80211_sw_roc_work(struct work_struct *work)
                 ieee80211_recalc_idle(local);
 
                 local->tmp_channel = roc->chan;
-                local->tmp_channel_type = roc->chan_type;
                 ieee80211_hw_config(local, 0);
 
                 /* tell userspace or send frame */
diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index e9579b7a2cd0..bc28346ba207 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -1022,15 +1022,14 @@ TRACE_EVENT(drv_remain_on_channel,
         TP_PROTO(struct ieee80211_local *local,
                  struct ieee80211_sub_if_data *sdata,
                  struct ieee80211_channel *chan,
-                 enum nl80211_channel_type chantype, unsigned int duration),
+                 unsigned int duration),
 
-        TP_ARGS(local, sdata, chan, chantype, duration),
+        TP_ARGS(local, sdata, chan, duration),
 
         TP_STRUCT__entry(
                 LOCAL_ENTRY
                 VIF_ENTRY
                 __field(int, center_freq)
-                __field(int, channel_type)
                 __field(unsigned int, duration)
         ),
 
@@ -1038,7 +1037,6 @@ TRACE_EVENT(drv_remain_on_channel,
                 LOCAL_ASSIGN;
                 VIF_ASSIGN;
                 __entry->center_freq = chan->center_freq;
-                __entry->channel_type = chantype;
                 __entry->duration = duration;
         ),
 
diff --git a/net/wireless/core.h b/net/wireless/core.h
index e53831c876bb..b0a09cf56e06 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -378,10 +378,8 @@ void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev);
 int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
                           struct wireless_dev *wdev,
                           struct ieee80211_channel *chan, bool offchan,
-                          enum nl80211_channel_type channel_type,
-                          bool channel_type_valid, unsigned int wait,
-                          const u8 *buf, size_t len, bool no_cck,
-                          bool dont_wait_for_ack, u64 *cookie);
+                          unsigned int wait, const u8 *buf, size_t len,
+                          bool no_cck, bool dont_wait_for_ack, u64 *cookie);
 void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa,
                                const struct ieee80211_ht_cap *ht_capa_mask);
 
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index 4bfd14f7c592..a9646b53a095 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -579,31 +579,25 @@ void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
 
 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
                                struct ieee80211_channel *chan,
-                               enum nl80211_channel_type channel_type,
                                unsigned int duration, gfp_t gfp)
 {
         struct wiphy *wiphy = wdev->wiphy;
         struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 
-        trace_cfg80211_ready_on_channel(wdev, cookie, chan, channel_type,
-                                        duration);
-        nl80211_send_remain_on_channel(rdev, wdev, cookie, chan, channel_type,
-                                       duration, gfp);
+        trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
+        nl80211_send_remain_on_channel(rdev, wdev, cookie, chan, duration, gfp);
 }
 EXPORT_SYMBOL(cfg80211_ready_on_channel);
 
 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
                                         struct ieee80211_channel *chan,
-                                        enum nl80211_channel_type channel_type,
                                         gfp_t gfp)
 {
         struct wiphy *wiphy = wdev->wiphy;
         struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 
-        trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan,
-                                                channel_type);
-        nl80211_send_remain_on_channel_cancel(rdev, wdev, cookie, chan,
-                                              channel_type, gfp);
+        trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
+        nl80211_send_remain_on_channel_cancel(rdev, wdev, cookie, chan, gfp);
 }
 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
 
@@ -758,10 +752,8 @@ void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev)
 int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
                           struct wireless_dev *wdev,
                           struct ieee80211_channel *chan, bool offchan,
-                          enum nl80211_channel_type channel_type,
-                          bool channel_type_valid, unsigned int wait,
-                          const u8 *buf, size_t len, bool no_cck,
-                          bool dont_wait_for_ack, u64 *cookie)
+                          unsigned int wait, const u8 *buf, size_t len,
+                          bool no_cck, bool dont_wait_for_ack, u64 *cookie)
 {
         const struct ieee80211_mgmt *mgmt;
         u16 stype;
@@ -855,7 +847,6 @@ int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
 
         /* Transmit the Action frame as requested by user space */
         return rdev_mgmt_tx(rdev, wdev, chan, offchan,
-                            channel_type, channel_type_valid,
                             wait, buf, len, no_cck, dont_wait_for_ack,
                             cookie);
 }
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 4c427fa5c450..e880f4494950 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -5952,7 +5952,6 @@ static int nl80211_remain_on_channel(struct sk_buff *skb,
         struct sk_buff *msg;
         void *hdr;
         u64 cookie;
-        enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
         u32 freq, duration;
         int err;
 
@@ -5975,11 +5974,11 @@ static int nl80211_remain_on_channel(struct sk_buff *skb,
                 return -EINVAL;
 
         if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
-            !nl80211_valid_channel_type(info, &channel_type))
+            !nl80211_valid_channel_type(info, NULL))
                 return -EINVAL;
 
         freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
-        chan = rdev_freq_to_chan(rdev, freq, channel_type);
+        chan = rdev_freq_to_chan(rdev, freq, NL80211_CHAN_NO_HT);
         if (chan == NULL)
                 return -EINVAL;
 
@@ -5995,8 +5994,7 @@ static int nl80211_remain_on_channel(struct sk_buff *skb,
                 goto free_msg;
         }
 
-        err = rdev_remain_on_channel(rdev, wdev, chan, channel_type, duration,
-                                     &cookie);
+        err = rdev_remain_on_channel(rdev, wdev, chan, duration, &cookie);
 
         if (err)
                 goto free_msg;
@@ -6216,8 +6214,6 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
         struct cfg80211_registered_device *rdev = info->user_ptr[0];
         struct wireless_dev *wdev = info->user_ptr[1];
         struct ieee80211_channel *chan;
-        enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
-        bool channel_type_valid = false;
         u32 freq;
         int err;
         void *hdr = NULL;
@@ -6264,11 +6260,9 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
 
         }
 
-        if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
-                if (!nl80211_valid_channel_type(info, &channel_type))
-                        return -EINVAL;
-                channel_type_valid = true;
-        }
+        if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
+            !nl80211_valid_channel_type(info, NULL))
+                return -EINVAL;
 
         offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
 
@@ -6278,7 +6272,7 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
         no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
 
         freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
-        chan = rdev_freq_to_chan(rdev, freq, channel_type);
+        chan = rdev_freq_to_chan(rdev, freq, NL80211_CHAN_NO_HT);
         if (chan == NULL)
                 return -EINVAL;
 
@@ -6296,8 +6290,7 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
                 }
         }
 
-        err = cfg80211_mlme_mgmt_tx(rdev, wdev, chan, offchan, channel_type,
-                                    channel_type_valid, wait,
+        err = cfg80211_mlme_mgmt_tx(rdev, wdev, chan, offchan, wait,
                                     nla_data(info->attrs[NL80211_ATTR_FRAME]),
                                     nla_len(info->attrs[NL80211_ATTR_FRAME]),
                                     no_cck, dont_wait_for_ack, &cookie);
@@ -8395,7 +8388,6 @@ static void nl80211_send_remain_on_chan_event(
         int cmd, struct cfg80211_registered_device *rdev,
         struct wireless_dev *wdev, u64 cookie,
         struct ieee80211_channel *chan,
-        enum nl80211_channel_type channel_type,
         unsigned int duration, gfp_t gfp)
 {
         struct sk_buff *msg;
@@ -8416,7 +8408,8 @@ static void nl80211_send_remain_on_chan_event(
                                          wdev->netdev->ifindex)) ||
             nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
             nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
-            nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) ||
+            nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
+                        NL80211_CHAN_NO_HT) ||
             nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
                 goto nla_put_failure;
 
@@ -8438,23 +8431,20 @@ static void nl80211_send_remain_on_chan_event(
 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
                                     struct wireless_dev *wdev, u64 cookie,
                                     struct ieee80211_channel *chan,
-                                    enum nl80211_channel_type channel_type,
                                     unsigned int duration, gfp_t gfp)
 {
         nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
                                           rdev, wdev, cookie, chan,
-                                          channel_type, duration, gfp);
+                                          duration, gfp);
 }
 
 void nl80211_send_remain_on_channel_cancel(
         struct cfg80211_registered_device *rdev,
         struct wireless_dev *wdev,
-        u64 cookie, struct ieee80211_channel *chan,
-        enum nl80211_channel_type channel_type, gfp_t gfp)
+        u64 cookie, struct ieee80211_channel *chan, gfp_t gfp)
 {
         nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
-                                          rdev, wdev, cookie, chan,
-                                          channel_type, 0, gfp);
+                                          rdev, wdev, cookie, chan, 0, gfp);
 }
 
 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
diff --git a/net/wireless/nl80211.h b/net/wireless/nl80211.h
index f6153516068c..7adbd767dbfd 100644
--- a/net/wireless/nl80211.h
+++ b/net/wireless/nl80211.h
@@ -76,13 +76,11 @@ void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
                                     struct wireless_dev *wdev, u64 cookie,
                                     struct ieee80211_channel *chan,
-                                    enum nl80211_channel_type channel_type,
                                     unsigned int duration, gfp_t gfp);
 void nl80211_send_remain_on_channel_cancel(
         struct cfg80211_registered_device *rdev,
         struct wireless_dev *wdev,
-        u64 cookie, struct ieee80211_channel *chan,
-        enum nl80211_channel_type channel_type, gfp_t gfp);
+        u64 cookie, struct ieee80211_channel *chan, gfp_t gfp);
 
 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
                             struct net_device *dev, const u8 *mac_addr,
diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h
index 6e5fa659068d..ee54a5aa4381 100644
--- a/net/wireless/rdev-ops.h
+++ b/net/wireless/rdev-ops.h
@@ -600,14 +600,12 @@ static inline int
 rdev_remain_on_channel(struct cfg80211_registered_device *rdev,
                        struct wireless_dev *wdev,
                        struct ieee80211_channel *chan,
-                       enum nl80211_channel_type channel_type,
                        unsigned int duration, u64 *cookie)
 {
         int ret;
-        trace_rdev_remain_on_channel(&rdev->wiphy, wdev, chan, channel_type,
-                                     duration);
+        trace_rdev_remain_on_channel(&rdev->wiphy, wdev, chan, duration);
         ret = rdev->ops->remain_on_channel(&rdev->wiphy, wdev, chan,
-                                            channel_type, duration, cookie);
+                                           duration, cookie);
         trace_rdev_return_int_cookie(&rdev->wiphy, ret, *cookie);
         return ret;
 }
@@ -626,17 +624,15 @@ rdev_cancel_remain_on_channel(struct cfg80211_registered_device *rdev,
 static inline int rdev_mgmt_tx(struct cfg80211_registered_device *rdev,
                                struct wireless_dev *wdev,
                                struct ieee80211_channel *chan, bool offchan,
-                               enum nl80211_channel_type channel_type,
-                               bool channel_type_valid, unsigned int wait,
-                               const u8 *buf, size_t len, bool no_cck,
-                               bool dont_wait_for_ack, u64 *cookie)
+                               unsigned int wait, const u8 *buf, size_t len,
+                               bool no_cck, bool dont_wait_for_ack, u64 *cookie)
 {
         int ret;
-        trace_rdev_mgmt_tx(&rdev->wiphy, wdev, chan, offchan, channel_type,
-                           channel_type_valid, wait, no_cck, dont_wait_for_ack);
+        trace_rdev_mgmt_tx(&rdev->wiphy, wdev, chan, offchan,
+                           wait, no_cck, dont_wait_for_ack);
         ret = rdev->ops->mgmt_tx(&rdev->wiphy, wdev, chan, offchan,
-                                  channel_type, channel_type_valid, wait, buf,
-                                  len, no_cck, dont_wait_for_ack, cookie);
+                                  wait, buf, len, no_cck,
+                                  dont_wait_for_ack, cookie);
         trace_rdev_return_int_cookie(&rdev->wiphy, ret, *cookie);
         return ret;
 }
diff --git a/net/wireless/trace.h b/net/wireless/trace.h
index f264c20a7090..ed10833f9a3a 100644
--- a/net/wireless/trace.h
+++ b/net/wireless/trace.h
@@ -1573,25 +1573,22 @@ DEFINE_EVENT(rdev_pmksa, rdev_del_pmksa,
 TRACE_EVENT(rdev_remain_on_channel,
         TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev,
                  struct ieee80211_channel *chan,
-                 enum nl80211_channel_type channel_type, unsigned int duration),
-        TP_ARGS(wiphy, wdev, chan, channel_type, duration),
+                 unsigned int duration),
+        TP_ARGS(wiphy, wdev, chan, duration),
         TP_STRUCT__entry(
                 WIPHY_ENTRY
                 WDEV_ENTRY
                 CHAN_ENTRY
-                __field(enum nl80211_channel_type, channel_type)
                 __field(unsigned int, duration)
         ),
         TP_fast_assign(
                 WIPHY_ASSIGN;
                 WDEV_ASSIGN;
                 CHAN_ASSIGN(chan);
-                __entry->channel_type = channel_type;
                 __entry->duration = duration;
         ),
-        TP_printk(WIPHY_PR_FMT WDEV_PR_FMT CHAN_PR_FMT ", channel type: %d, duration: %u",
-                  WIPHY_PR_ARG, WDEV_PR_ARG, CHAN_PR_ARG, __entry->channel_type,
-                  __entry->duration)
+        TP_printk(WIPHY_PR_FMT WDEV_PR_FMT CHAN_PR_FMT ", duration: %u",
+                  WIPHY_PR_ARG, WDEV_PR_ARG, CHAN_PR_ARG, __entry->duration)
 );
 
 TRACE_EVENT(rdev_return_int_cookie,
@@ -1631,18 +1628,13 @@ TRACE_EVENT(rdev_cancel_remain_on_channel,
 TRACE_EVENT(rdev_mgmt_tx,
         TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev,
                  struct ieee80211_channel *chan, bool offchan,
-                 enum nl80211_channel_type channel_type,
-                 bool channel_type_valid, unsigned int wait, bool no_cck,
-                 bool dont_wait_for_ack),
-        TP_ARGS(wiphy, wdev, chan, offchan, channel_type, channel_type_valid,
-                wait, no_cck, dont_wait_for_ack),
+                 unsigned int wait, bool no_cck, bool dont_wait_for_ack),
+        TP_ARGS(wiphy, wdev, chan, offchan, wait, no_cck, dont_wait_for_ack),
         TP_STRUCT__entry(
                 WIPHY_ENTRY
                 WDEV_ENTRY
                 CHAN_ENTRY
                 __field(bool, offchan)
-                __field(enum nl80211_channel_type, channel_type)
-                __field(bool, channel_type_valid)
                 __field(unsigned int, wait)
                 __field(bool, no_cck)
                 __field(bool, dont_wait_for_ack)
@@ -1652,18 +1644,14 @@ TRACE_EVENT(rdev_mgmt_tx,
                 WDEV_ASSIGN;
                 CHAN_ASSIGN(chan);
                 __entry->offchan = offchan;
-                __entry->channel_type = channel_type;
-                __entry->channel_type_valid = channel_type_valid;
                 __entry->wait = wait;
                 __entry->no_cck = no_cck;
                 __entry->dont_wait_for_ack = dont_wait_for_ack;
         ),
-        TP_printk(WIPHY_PR_FMT WDEV_PR_FMT CHAN_PR_FMT ", offchan: %s, "
-                  "channel type: %d, channel type valid: %s, wait: %u, "
-                  "no cck: %s, dont wait for ack: %s",
+        TP_printk(WIPHY_PR_FMT WDEV_PR_FMT CHAN_PR_FMT ", offchan: %s,"
+                  " wait: %u, no cck: %s, dont wait for ack: %s",
                   WIPHY_PR_ARG, WDEV_PR_ARG, CHAN_PR_ARG,
-                  BOOL_TO_STR(__entry->offchan), __entry->channel_type,
-                  BOOL_TO_STR(__entry->channel_type_valid), __entry->wait,
+                  BOOL_TO_STR(__entry->offchan), __entry->wait,
                   BOOL_TO_STR(__entry->no_cck),
                   BOOL_TO_STR(__entry->dont_wait_for_ack))
 );
@@ -1894,47 +1882,41 @@ TRACE_EVENT(cfg80211_michael_mic_failure,
 TRACE_EVENT(cfg80211_ready_on_channel,
         TP_PROTO(struct wireless_dev *wdev, u64 cookie,
                  struct ieee80211_channel *chan,
-                 enum nl80211_channel_type channel_type, unsigned int duration),
-        TP_ARGS(wdev, cookie, chan, channel_type, duration),
+                 unsigned int duration),
+        TP_ARGS(wdev, cookie, chan, duration),
         TP_STRUCT__entry(
                 WDEV_ENTRY
                 __field(u64, cookie)
                 CHAN_ENTRY
-                __field(enum nl80211_channel_type, channel_type)
                 __field(unsigned int, duration)
         ),
         TP_fast_assign(
                 WDEV_ASSIGN;
                 __entry->cookie = cookie;
                 CHAN_ASSIGN(chan);
-                __entry->channel_type = channel_type;
                 __entry->duration = duration;
         ),
-        TP_printk(WDEV_PR_FMT ", cookie: %llu, " CHAN_PR_FMT ", channel type: %d, duration: %u",
+        TP_printk(WDEV_PR_FMT ", cookie: %llu, " CHAN_PR_FMT ", duration: %u",
                   WDEV_PR_ARG, __entry->cookie, CHAN_PR_ARG,
-                  __entry->channel_type, __entry->duration)
+                  __entry->duration)
 );
 
 TRACE_EVENT(cfg80211_ready_on_channel_expired,
         TP_PROTO(struct wireless_dev *wdev, u64 cookie,
-                 struct ieee80211_channel *chan,
-                 enum nl80211_channel_type channel_type),
-        TP_ARGS(wdev, cookie, chan, channel_type),
+                 struct ieee80211_channel *chan),
+        TP_ARGS(wdev, cookie, chan),
         TP_STRUCT__entry(
                 WDEV_ENTRY
                 __field(u64, cookie)
                 CHAN_ENTRY
-                __field(enum nl80211_channel_type, channel_type)
         ),
         TP_fast_assign(
                 WDEV_ASSIGN;
                 __entry->cookie = cookie;
                 CHAN_ASSIGN(chan);
-                __entry->channel_type = channel_type;
         ),
-        TP_printk(WDEV_PR_FMT ", cookie: %llu, " CHAN_PR_FMT ", channel type: %d",
-                  WDEV_PR_ARG, __entry->cookie, CHAN_PR_ARG,
-                  __entry->channel_type)
+        TP_printk(WDEV_PR_FMT ", cookie: %llu, " CHAN_PR_FMT,
+                  WDEV_PR_ARG, __entry->cookie, CHAN_PR_ARG)
 );
 
 TRACE_EVENT(cfg80211_new_sta,