wifi: mac80211: introduce 'channel request'

For channel contexts, mac80211 currently uses the cfg80211
chandef struct (control channel, center freq(s), width) to
define towards drivers and internally how these behave. In
fact, there are _two_ such structs used, where the min_def
can reduce bandwidth according to the stations connected.

Unfortunately,  with EHT this is longer be sufficient,  at
least not for all hardware.  EHT requires that non-AP STAs
that are connected to an AP with a lower bandwidth than it
(the AP) advertises (e.g. 160 MHz STA connected to 320 MHz
AP) still be able to receive downlink OFDMA and respond to
trigger frames for uplink OFDMA  that specify the position
and bandwidth  for the non-AP STA  relative to the channel
the AP is using.  Therefore, they need to be aware of this,
and at least for some hardware (e.g. Intel) this awareness
is in the hardware. As a result, use of the "same" channel
may need to be split over  two channel contexts where they
differ by the AP being used.

As a first step,  introduce a concept of a channel request
('chanreq') for each interface,  to control the context it
requests.   This step does nothing but reorganise the code,
so that later the AP's chandef can be added to the request
in order to handle the EHT case described above.

Link: https://msgid.link/20240129194108.2e88e48bd2e9.I4256183debe975c5ed71621611206fdbb69ba330@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

34 files changed, 379 insertions, 329 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
index bcf78ccba8c1..61269c7b1934 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
@@ -455,7 +455,7 @@ void iwl_mvm_set_fw_protection_flags(struct iwl_mvm *mvm,
 		break;
 	case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
 		/* Protect when channel wider than 20MHz */
-		if (link_conf->chandef.width > NL80211_CHAN_WIDTH_20)
+		if (link_conf->chanreq.oper.width > NL80211_CHAN_WIDTH_20)
 			*protection_flags |= cpu_to_le32(ht_flag);
 		break;
 	default:
@@ -494,7 +494,7 @@ void iwl_mvm_set_fw_qos_params(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	if (link_conf->qos)
 		*qos_flags |= cpu_to_le32(MAC_QOS_FLG_UPDATE_EDCA);
 
-	if (link_conf->chandef.width != NL80211_CHAN_WIDTH_20_NOHT)
+	if (link_conf->chanreq.oper.width != NL80211_CHAN_WIDTH_20_NOHT)
 		*qos_flags |= cpu_to_le32(MAC_QOS_FLG_TGN);
 }
 
@@ -910,8 +910,8 @@ u8 iwl_mvm_mac_ctxt_get_lowest_rate(struct iwl_mvm *mvm,
 		link_conf = rcu_dereference(vif->link_conf[link_id]);
 		if (link_conf) {
 			basic = link_conf->basic_rates;
-			if (link_conf->chandef.chan)
-				band = link_conf->chandef.chan->band;
+			if (link_conf->chanreq.oper.chan)
+				band = link_conf->chanreq.oper.chan->band;
 		}
 		rcu_read_unlock();
 	}
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 93baec9bb3fc..65293b45a98f 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -1641,7 +1641,7 @@ static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
 	if (vif->type == NL80211_IFTYPE_MONITOR) {
 		mvm->monitor_on = true;
 		mvm->monitor_p80 =
-			iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chandef);
+			iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chanreq.oper);
 	}
 
 	if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
@@ -3421,16 +3421,16 @@ iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw,
 		.tolerated = true,
 	};
 
-	if (WARN_ON_ONCE(!link_conf->chandef.chan ||
+	if (WARN_ON_ONCE(!link_conf->chanreq.oper.chan ||
 			 !mvmvif->link[link_id]))
 		return;
 
-	if (!(link_conf->chandef.chan->flags & IEEE80211_CHAN_RADAR)) {
+	if (!(link_conf->chanreq.oper.chan->flags & IEEE80211_CHAN_RADAR)) {
 		mvmvif->link[link_id]->he_ru_2mhz_block = false;
 		return;
 	}
 
-	cfg80211_bss_iter(hw->wiphy, &link_conf->chandef,
+	cfg80211_bss_iter(hw->wiphy, &link_conf->chanreq.oper,
 			  iwl_mvm_check_he_obss_narrow_bw_ru_iter,
 			  &iter_data);
 
@@ -3490,10 +3490,10 @@ static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm,
 		return;
 
 	/* FIXME: MEI needs to be updated for MLO */
-	if (!vif->bss_conf.chandef.chan)
+	if (!vif->bss_conf.chanreq.oper.chan)
 		return;
 
-	conn_info.channel = vif->bss_conf.chandef.chan->hw_value;
+	conn_info.channel = vif->bss_conf.chanreq.oper.chan->hw_value;
 
 	switch (mvm_sta->pairwise_cipher) {
 	case WLAN_CIPHER_SUITE_TKIP:
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mld-mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mld-mac80211.c
index ff7d9a7d607e..b633a2a09c32 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mld-mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mld-mac80211.c
@@ -656,8 +656,8 @@ void iwl_mvm_mld_select_links(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 			continue;
 
 		data[n_data].link_id = link_id;
-		data[n_data].band = link_conf->chandef.chan->band;
-		data[n_data].width = link_conf->chandef.width;
+		data[n_data].band = link_conf->chanreq.oper.chan->band;
+		data[n_data].width = link_conf->chanreq.oper.width;
 		data[n_data].active = vif->active_links & BIT(link_id);
 		n_data++;
 	}
@@ -1241,8 +1241,8 @@ int iwl_mvm_mld_get_primary_link(struct iwl_mvm *mvm,
 			continue;
 
 		data[n_data].link_id = link_id;
-		data[n_data].band = link_conf->chandef.chan->band;
-		data[n_data].width = link_conf->chandef.width;
+		data[n_data].band = link_conf->chanreq.oper.chan->band;
+		data[n_data].width = link_conf->chanreq.oper.width;
 		data[n_data].active = true;
 		n_data++;
 	}
@@ -1292,7 +1292,7 @@ static bool iwl_mvm_can_enter_esr(struct iwl_mvm *mvm,
 			continue;
 
 		/* BT Coex effects eSR mode only if one of the link is on LB */
-		if (link_conf->chandef.chan->band != NL80211_BAND_2GHZ)
+		if (link_conf->chanreq.oper.chan->band != NL80211_BAND_2GHZ)
 			continue;
 
 		ret = iwl_mvm_bt_coex_calculate_esr_mode(mvm, vif, link_id,
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
index 747fc91ef8d0..ad4146d3345a 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
@@ -161,9 +161,9 @@ static void iwl_mvm_rx_monitor_notif(struct iwl_mvm *mvm,
 	if (!vif || vif->type != NL80211_IFTYPE_STATION)
 		return;
 
-	if (!vif->bss_conf.chandef.chan ||
-	    vif->bss_conf.chandef.chan->band != NL80211_BAND_2GHZ ||
-	    vif->bss_conf.chandef.width < NL80211_CHAN_WIDTH_40)
+	if (!vif->bss_conf.chanreq.oper.chan ||
+	    vif->bss_conf.chanreq.oper.chan->band != NL80211_BAND_2GHZ ||
+	    vif->bss_conf.chanreq.oper.width < NL80211_CHAN_WIDTH_40)
 		return;
 
 	if (!vif->cfg.assoc)
@@ -219,7 +219,7 @@ void iwl_mvm_update_link_smps(struct ieee80211_vif *vif,
 		return;
 
 	if (mvm->fw_static_smps_request &&
-	    link_conf->chandef.width == NL80211_CHAN_WIDTH_160 &&
+	    link_conf->chanreq.oper.width == NL80211_CHAN_WIDTH_160 &&
 	    link_conf->he_support)
 		mode = IEEE80211_SMPS_STATIC;
 
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c
index 6cba8a353b53..71d92635d6d7 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c
@@ -525,10 +525,10 @@ u16 rs_fw_get_max_amsdu_len(struct ieee80211_sta *sta,
 	const struct ieee80211_sta_ht_cap *ht_cap = &link_sta->ht_cap;
 	const struct ieee80211_sta_eht_cap *eht_cap = &link_sta->eht_cap;
 
-	if (WARN_ON_ONCE(!link_conf->chandef.chan))
+	if (WARN_ON_ONCE(!link_conf->chanreq.oper.chan))
 		return IEEE80211_MAX_MPDU_LEN_VHT_3895;
 
-	if (link_conf->chandef.chan->band == NL80211_BAND_6GHZ) {
+	if (link_conf->chanreq.oper.chan->band == NL80211_BAND_6GHZ) {
 		switch (le16_get_bits(link_sta->he_6ghz_capa.capa,
 				      IEEE80211_HE_6GHZ_CAP_MAX_MPDU_LEN)) {
 		case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
@@ -538,7 +538,7 @@ u16 rs_fw_get_max_amsdu_len(struct ieee80211_sta *sta,
 		default:
 			return IEEE80211_MAX_MPDU_LEN_VHT_3895;
 		}
-	} else if (link_conf->chandef.chan->band == NL80211_BAND_2GHZ &&
+	} else if (link_conf->chanreq.oper.chan->band == NL80211_BAND_2GHZ &&
 		   eht_cap->has_eht) {
 		switch (u8_get_bits(eht_cap->eht_cap_elem.mac_cap_info[0],
 				    IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_MASK)) {
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
index 8ffbb8efda73..7e9f3a670212 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
@@ -71,7 +71,7 @@ u32 iwl_mvm_get_sta_ampdu_dens(struct ieee80211_link_sta *link_sta,
 		mpdu_dens = link_sta->ht_cap.ampdu_density;
 	}
 
-	if (link_conf->chandef.chan->band == NL80211_BAND_6GHZ) {
+	if (link_conf->chanreq.oper.chan->band == NL80211_BAND_6GHZ) {
 		/* overwrite HT values on 6 GHz */
 		mpdu_dens = le16_get_bits(link_sta->he_6ghz_capa.capa,
 					  IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START);
@@ -208,7 +208,7 @@ int iwl_mvm_sta_send_to_fw(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 	}
 
 	if (sta->deflink.ht_cap.ht_supported ||
-	    mvm_sta->vif->bss_conf.chandef.chan->band == NL80211_BAND_6GHZ)
+	    mvm_sta->vif->bss_conf.chanreq.oper.chan->band == NL80211_BAND_6GHZ)
 		add_sta_cmd.station_flags_msk |=
 			cpu_to_le32(STA_FLG_MAX_AGG_SIZE_MSK |
 				    STA_FLG_AGG_MPDU_DENS_MSK);
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
index 79eb6394e5a7..58d1f283d628 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
@@ -894,10 +894,10 @@ unsigned int iwl_mvm_max_amsdu_size(struct iwl_mvm *mvm,
 			if (WARN_ON(!link_conf))
 				band = NL80211_BAND_2GHZ;
 			else
-				band = link_conf->chandef.chan->band;
+				band = link_conf->chanreq.oper.chan->band;
 			rcu_read_unlock();
 		} else {
-			band = mvmsta->vif->bss_conf.chandef.chan->band;
+			band = mvmsta->vif->bss_conf.chanreq.oper.chan->band;
 		}
 
 		lmac = iwl_mvm_get_lmac_id(mvm, band);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
index c67c4f6ca2aa..df1ad6d4e12d 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
@@ -463,10 +463,10 @@ static bool mt7915_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw,
 		.tolerated = true,
 	};
 
-	if (!(vif->bss_conf.chandef.chan->flags & IEEE80211_CHAN_RADAR))
+	if (!(vif->bss_conf.chanreq.oper.chan->flags & IEEE80211_CHAN_RADAR))
 		return false;
 
-	cfg80211_bss_iter(hw->wiphy, &vif->bss_conf.chandef,
+	cfg80211_bss_iter(hw->wiphy, &vif->bss_conf.chanreq.oper,
 			  mt7915_check_he_obss_narrow_bw_ru_iter,
 			  &iter_data);
 
diff --git a/drivers/net/wireless/realtek/rtw89/mac.c b/drivers/net/wireless/realtek/rtw89/mac.c
index dbf2d6fe4ea7..ef4c492003d8 100644
--- a/drivers/net/wireless/realtek/rtw89/mac.c
+++ b/drivers/net/wireless/realtek/rtw89/mac.c
@@ -4615,10 +4615,10 @@ void rtw89_mac_set_he_obss_narrow_bw_ru(struct rtw89_dev *rtwdev,
 	if (!vif->bss_conf.he_support || vif->type != NL80211_IFTYPE_STATION)
 		return;
 
-	if (!(vif->bss_conf.chandef.chan->flags & IEEE80211_CHAN_RADAR))
+	if (!(vif->bss_conf.chanreq.oper.chan->flags & IEEE80211_CHAN_RADAR))
 		return;
 
-	cfg80211_bss_iter(hw->wiphy, &vif->bss_conf.chandef,
+	cfg80211_bss_iter(hw->wiphy, &vif->bss_conf.chanreq.oper,
 			  rtw89_mac_check_he_obss_narrow_bw_ru_iter,
 			  &tolerated);
 
diff --git a/drivers/net/wireless/rsi/rsi_91x_mac80211.c b/drivers/net/wireless/rsi/rsi_91x_mac80211.c
index e8aeb4d76c13..211fa25b9a78 100644
--- a/drivers/net/wireless/rsi/rsi_91x_mac80211.c
+++ b/drivers/net/wireless/rsi/rsi_91x_mac80211.c
@@ -740,7 +740,7 @@ u16 rsi_get_connected_channel(struct ieee80211_vif *vif)
 		return 0;
 
 	bss = &vif->bss_conf;
-	channel = bss->chandef.chan;
+	channel = bss->chanreq.oper.chan;
 
 	if (!channel)
 		return 0;
@@ -759,7 +759,7 @@ static void rsi_switch_channel(struct rsi_hw *adapter,
 	if (!vif)
 		return;
 
-	channel = vif->bss_conf.chandef.chan;
+	channel = vif->bss_conf.chanreq.oper.chan;
 
 	if (!channel)
 		return;
diff --git a/drivers/net/wireless/silabs/wfx/sta.c b/drivers/net/wireless/silabs/wfx/sta.c
index bb4446b88c12..a904602f02ce 100644
--- a/drivers/net/wireless/silabs/wfx/sta.c
+++ b/drivers/net/wireless/silabs/wfx/sta.c
@@ -144,13 +144,13 @@ static int wfx_get_ps_timeout(struct wfx_vif *wvif, bool *enable_ps)
 		struct wfx_vif *wvif_ch0 = wdev_to_wvif(wvif->wdev, 0);
 		struct ieee80211_vif *vif_ch0 = wvif_to_vif(wvif_ch0);
 
-		chan0 = vif_ch0->bss_conf.chandef.chan;
+		chan0 = vif_ch0->bss_conf.chanreq.oper.chan;
 	}
 	if (wdev_to_wvif(wvif->wdev, 1)) {
 		struct wfx_vif *wvif_ch1 = wdev_to_wvif(wvif->wdev, 1);
 		struct ieee80211_vif *vif_ch1 = wvif_to_vif(wvif_ch1);
 
-		chan1 = vif_ch1->bss_conf.chandef.chan;
+		chan1 = vif_ch1->bss_conf.chanreq.oper.chan;
 	}
 	if (chan0 && chan1 && vif->type != NL80211_IFTYPE_AP) {
 		if (chan0->hw_value == chan1->hw_value) {
diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 5736acb4d206..ef12169f8044 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -2910,7 +2910,7 @@ static int wlcore_set_assoc(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 	int ret;
 
 	wlvif->aid = vif->cfg.aid;
-	wlvif->channel_type = cfg80211_get_chandef_type(&bss_conf->chandef);
+	wlvif->channel_type = cfg80211_get_chandef_type(&bss_conf->chanreq.oper);
 	wlvif->beacon_int = bss_conf->beacon_int;
 	wlvif->wmm_enabled = bss_conf->qos;
 
@@ -4242,7 +4242,7 @@ static void wl1271_bss_info_changed_ap(struct wl1271 *wl,
 
 	/* Handle HT information change */
 	if ((changed & BSS_CHANGED_HT) &&
-	    (bss_conf->chandef.width != NL80211_CHAN_WIDTH_20_NOHT)) {
+	    (bss_conf->chanreq.oper.width != NL80211_CHAN_WIDTH_20_NOHT)) {
 		ret = wl1271_acx_set_ht_information(wl, wlvif,
 					bss_conf->ht_operation_mode);
 		if (ret < 0) {
@@ -4515,7 +4515,7 @@ static void wl1271_bss_info_changed_sta(struct wl1271 *wl,
 	/* Handle new association with HT. Do this after join. */
 	if (sta_exists) {
 		bool enabled =
-			bss_conf->chandef.width != NL80211_CHAN_WIDTH_20_NOHT;
+			bss_conf->chanreq.oper.width != NL80211_CHAN_WIDTH_20_NOHT;
 
 		ret = wlcore_hw_set_peer_cap(wl,
 					     &sta_ht_cap,
diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c
index e23a5da2b67e..283804b49e91 100644
--- a/drivers/staging/vt6655/device_main.c
+++ b/drivers/staging/vt6655/device_main.c
@@ -1515,7 +1515,7 @@ static void vnt_bss_info_changed(struct ieee80211_hw *hw,
 
 	if (changed & BSS_CHANGED_TXPOWER)
 		RFbSetPower(priv, priv->wCurrentRate,
-			    conf->chandef.chan->hw_value);
+			    conf->chanreq.oper.chan->hw_value);
 
 	if (changed & BSS_CHANGED_BEACON_ENABLED) {
 		dev_dbg(&priv->pcid->dev,
diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c
index 6c70493d1b01..7bbed462f062 100644
--- a/drivers/staging/vt6656/main_usb.c
+++ b/drivers/staging/vt6656/main_usb.c
@@ -794,7 +794,7 @@ static void vnt_bss_info_changed(struct ieee80211_hw *hw,
 		vnt_set_bss_mode(priv);
 
 	if (changed & (BSS_CHANGED_TXPOWER | BSS_CHANGED_BANDWIDTH))
-		vnt_rf_setpower(priv, conf->chandef.chan);
+		vnt_rf_setpower(priv, conf->chanreq.oper.chan);
 
 	if (changed & BSS_CHANGED_BEACON_ENABLED) {
 		dev_dbg(&priv->usb->dev,
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 62c4b4d10bb4..dd8a66e9afd9 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -224,6 +224,14 @@ enum ieee80211_chanctx_change {
 };
 
 /**
+ * struct ieee80211_chan_req - A channel "request"
+ * @oper: channel definition to use for operation
+ */
+struct ieee80211_chan_req {
+	struct cfg80211_chan_def oper;
+};
+
+/**
  * struct ieee80211_chanctx_conf - channel context that vifs may be tuned to
  *
  * This is the driver-visible part. The ieee80211_chanctx
@@ -583,7 +591,7 @@ struct ieee80211_fils_discovery {
  * @mcast_rate: per-band multicast rate index + 1 (0: disabled)
  * @bssid: The BSSID for this BSS
  * @enable_beacon: whether beaconing should be enabled or not
- * @chandef: Channel definition for this BSS -- the hardware might be
+ * @chanreq: Channel request for this BSS -- the hardware might be
  *	configured a higher bandwidth than this BSS uses, for example.
  * @mu_group: VHT MU-MIMO group membership data
  * @ht_operation_mode: HT operation mode like in &struct ieee80211_ht_operation.
@@ -716,7 +724,7 @@ struct ieee80211_bss_conf {
 	u32 cqm_rssi_hyst;
 	s32 cqm_rssi_low;
 	s32 cqm_rssi_high;
-	struct cfg80211_chan_def chandef;
+	struct ieee80211_chan_req chanreq;
 	struct ieee80211_mu_group_data mu_group;
 	bool qos;
 	bool hidden_ssid;
diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index b8a278355e18..21d55dc539f6 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -616,7 +616,7 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid,
 		return -EINVAL;
 
 	if (!pubsta->deflink.ht_cap.ht_supported &&
-	    sta->sdata->vif.bss_conf.chandef.chan->band != NL80211_BAND_6GHZ)
+	    sta->sdata->vif.bss_conf.chanreq.oper.chan->band != NL80211_BAND_6GHZ)
 		return -EINVAL;
 
 	if (WARN_ON_ONCE(!local->ops->ampdu_action))
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index d3bf029709d5..5aa02b0872d9 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -886,11 +886,13 @@ static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
 {
 	struct ieee80211_local *local = wiphy_priv(wiphy);
 	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_chan_req chanreq = { .oper = *chandef };
 	int ret;
 
 	lockdep_assert_wiphy(local->hw.wiphy);
 
-	if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
+	if (cfg80211_chandef_identical(&local->monitor_chanreq.oper,
+				       &chanreq.oper))
 		return 0;
 
 	sdata = wiphy_dereference(local->hw.wiphy,
@@ -898,17 +900,17 @@ static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
 	if (!sdata)
 		goto done;
 
-	if (cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, chandef))
+	if (cfg80211_chandef_identical(&sdata->vif.bss_conf.chanreq.oper,
+				       &chanreq.oper))
 		return 0;
 
 	ieee80211_link_release_channel(&sdata->deflink);
-	ret = ieee80211_link_use_channel(&sdata->deflink,
-					 chandef,
+	ret = ieee80211_link_use_channel(&sdata->deflink, &chanreq,
 					 IEEE80211_CHANCTX_EXCLUSIVE);
 	if (ret)
 		return ret;
 done:
-	local->monitor_chandef = *chandef;
+	local->monitor_chanreq = chanreq;
 	return 0;
 }
 
@@ -1257,6 +1259,7 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
 	unsigned int link_id = params->beacon.link_id;
 	struct ieee80211_link_data *link;
 	struct ieee80211_bss_conf *link_conf;
+	struct ieee80211_chan_req chanreq = { .oper = params->chandef };
 
 	lockdep_assert_wiphy(local->hw.wiphy);
 
@@ -1369,7 +1372,7 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
 			return err;
 	}
 
-	err = ieee80211_link_use_channel(link, &params->chandef,
+	err = ieee80211_link_use_channel(link, &chanreq,
 					 IEEE80211_CHANCTX_SHARED);
 	if (!err)
 		ieee80211_link_copy_chanctx_to_vlans(link, false);
@@ -1626,7 +1629,7 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev,
 					  BSS_CHANGED_BEACON_ENABLED);
 
 	if (sdata->wdev.cac_started) {
-		chandef = link_conf->chandef;
+		chandef = link_conf->chanreq.oper;
 		wiphy_delayed_work_cancel(wiphy, &link->dfs_cac_timer_work);
 		cfg80211_cac_event(sdata->dev, &chandef,
 				   NL80211_RADAR_CAC_ABORTED,
@@ -1826,7 +1829,7 @@ static int sta_link_apply_parameters(struct ieee80211_local *local,
 
 	if (params->supported_rates &&
 	    params->supported_rates_len) {
-		ieee80211_parse_bitrates(link->conf->chandef.width,
+		ieee80211_parse_bitrates(link->conf->chanreq.oper.width,
 					 sband, params->supported_rates,
 					 params->supported_rates_len,
 					 &link_sta->pub->supp_rates[sband->band]);
@@ -2602,6 +2605,7 @@ static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
 			       const struct mesh_setup *setup)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_chan_req chanreq = { .oper = setup->chandef };
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 	int err;
 
@@ -2618,7 +2622,7 @@ static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
 	sdata->deflink.smps_mode = IEEE80211_SMPS_OFF;
 	sdata->deflink.needed_rx_chains = sdata->local->rx_chains;
 
-	err = ieee80211_link_use_channel(&sdata->deflink, &setup->chandef,
+	err = ieee80211_link_use_channel(&sdata->deflink, &chanreq,
 					 IEEE80211_CHANCTX_SHARED);
 	if (err)
 		return err;
@@ -2661,7 +2665,7 @@ static int ieee80211_change_bss(struct wiphy *wiphy,
 		return -EINVAL;
 
 	if (params->basic_rates) {
-		if (!ieee80211_parse_bitrates(link->conf->chandef.width,
+		if (!ieee80211_parse_bitrates(link->conf->chanreq.oper.width,
 					      wiphy->bands[sband->band],
 					      params->basic_rates,
 					      params->basic_rates_len,
@@ -3176,7 +3180,7 @@ int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
 	 * the new value until we associate.
 	 */
 	if (!sdata->u.mgd.associated ||
-	    link->conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
+	    link->conf->chanreq.oper.width == NL80211_CHAN_WIDTH_20_NOHT)
 		return 0;
 
 	ap = sdata->vif.cfg.ap_addr;
@@ -3331,9 +3335,11 @@ static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
 	 * so at a basic rate so that all clients can receive it.
 	 */
 	if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) &&
-	    sdata->vif.bss_conf.chandef.chan) {
+	    sdata->vif.bss_conf.chanreq.oper.chan) {
 		u32 basic_rates = sdata->vif.bss_conf.basic_rates;
-		enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
+		enum nl80211_band band;
+
+		band = sdata->vif.bss_conf.chanreq.oper.chan->band;
 
 		if (!(mask->control[band].legacy & basic_rates))
 			return -EINVAL;
@@ -3385,6 +3391,7 @@ static int ieee80211_start_radar_detection(struct wiphy *wiphy,
 					   u32 cac_time_ms)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_chan_req chanreq = { .oper = *chandef };
 	struct ieee80211_local *local = sdata->local;
 	int err;
 
@@ -3399,7 +3406,7 @@ static int ieee80211_start_radar_detection(struct wiphy *wiphy,
 	sdata->deflink.smps_mode = IEEE80211_SMPS_OFF;
 	sdata->deflink.needed_rx_chains = local->rx_chains;
 
-	err = ieee80211_link_use_channel(&sdata->deflink, chandef,
+	err = ieee80211_link_use_channel(&sdata->deflink, &chanreq,
 					 IEEE80211_CHANCTX_SHARED);
 	if (err)
 		goto out_unlock;
@@ -3651,8 +3658,8 @@ static int __ieee80211_csa_finalize(struct ieee80211_link_data *link_data)
 		return ieee80211_link_use_reserved_context(&sdata->deflink);
 	}
 
-	if (!cfg80211_chandef_identical(&link_data->conf->chandef,
-					&link_data->csa_chandef))
+	if (!cfg80211_chandef_identical(&link_data->conf->chanreq.oper,
+					&link_data->csa_chanreq.oper))
 		return -EINVAL;
 
 	sdata->vif.bss_conf.csa_active = false;
@@ -3679,7 +3686,7 @@ static int __ieee80211_csa_finalize(struct ieee80211_link_data *link_data)
 	if (err)
 		return err;
 
-	cfg80211_ch_switch_notify(sdata->dev, &link_data->csa_chandef,
+	cfg80211_ch_switch_notify(sdata->dev, &link_data->csa_chanreq.oper,
 				  link_data->link_id,
 				  link_data->conf->eht_puncturing);
 
@@ -3814,7 +3821,7 @@ static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
 		struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 
 		/* changes into another band are not supported */
-		if (sdata->vif.bss_conf.chandef.chan->band !=
+		if (sdata->vif.bss_conf.chanreq.oper.chan->band !=
 		    params->chandef.chan->band)
 			return -EINVAL;
 
@@ -3862,6 +3869,7 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
 			   struct cfg80211_csa_settings *params)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_chan_req chanreq = { .oper = params->chandef };
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_channel_switch ch_switch;
 	struct ieee80211_chanctx_conf *conf;
@@ -3877,8 +3885,8 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
 	if (sdata->wdev.cac_started)
 		return -EBUSY;
 
-	if (cfg80211_chandef_identical(&params->chandef,
-				       &sdata->vif.bss_conf.chandef))
+	if (cfg80211_chandef_identical(&chanreq.oper,
+				       &sdata->vif.bss_conf.chanreq.oper))
 		return -EINVAL;
 
 	/* don't allow another channel switch if one is already active. */
@@ -3903,14 +3911,14 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
 	ch_switch.timestamp = 0;
 	ch_switch.device_timestamp = 0;
 	ch_switch.block_tx = params->block_tx;
-	ch_switch.chandef = params->chandef;
+	ch_switch.chandef = chanreq.oper;
 	ch_switch.count = params->count;
 
 	err = drv_pre_channel_switch(sdata, &ch_switch);
 	if (err)
 		goto out;
 
-	err = ieee80211_link_reserve_chanctx(&sdata->deflink, &params->chandef,
+	err = ieee80211_link_reserve_chanctx(&sdata->deflink, &chanreq,
 					     chanctx->mode,
 					     params->radar_required);
 	if (err)
@@ -3936,7 +3944,7 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
 	if (params->punct_bitmap && !sdata->vif.bss_conf.eht_support)
 		goto out;
 
-	sdata->deflink.csa_chandef = params->chandef;
+	sdata->deflink.csa_chanreq = chanreq; 
 	sdata->deflink.csa_block_tx = params->block_tx;
 	sdata->vif.bss_conf.csa_active = true;
 	sdata->vif.bss_conf.csa_punct_bitmap = params->punct_bitmap;
@@ -3946,14 +3954,15 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
 					  IEEE80211_QUEUE_STOP_REASON_CSA);
 
 	cfg80211_ch_switch_started_notify(sdata->dev,
-					  &sdata->deflink.csa_chandef, 0,
+					  &sdata->deflink.csa_chanreq.oper, 0,
 					  params->count, params->block_tx,
 					  sdata->vif.bss_conf.csa_punct_bitmap);
 
 	if (changed) {