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ilanpeer2
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committed
mac80211: Add initial support for EHT and 320 MHz channels
Add initial support for EHT and 320 MHz bandwidth in mac80211. As a new IEEE80211_STA_RX_BW_320 is added to enum ieee80211_sta_rx_bandwidth, update the drivers to avoid compilation warnings. Signed-off-by: Ilan Peer <ilan.peer@intel.com> Link: https://lore.kernel.org/r/20220214173004.0f144cc0bba6.Iad18111264da87eed5fd7b017f0cc6e58c604e07@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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9 files changed

+213
-59
lines changed

9 files changed

+213
-59
lines changed

‎drivers/net/wireless/intel/iwlwifi/mvm/sta.c‎

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -87,6 +87,7 @@ int iwl_mvm_sta_send_to_fw(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
8787
}
8888

8989
switch (sta->bandwidth) {
90+
case IEEE80211_STA_RX_BW_320:
9091
case IEEE80211_STA_RX_BW_160:
9192
add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_160MHZ);
9293
fallthrough;

‎drivers/net/wireless/mac80211_hwsim.c‎

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -2195,6 +2195,7 @@ mac80211_hwsim_sta_rc_update(struct ieee80211_hw *hw,
21952195
C(40);
21962196
C(80);
21972197
C(160);
2198+
C(320);
21982199
#undef C
21992200
}
22002201

‎include/net/mac80211.h‎

Lines changed: 2 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -2005,6 +2005,7 @@ enum ieee80211_sta_state {
20052005
* @IEEE80211_STA_RX_BW_80: station can receive up to 80 MHz
20062006
* @IEEE80211_STA_RX_BW_160: station can receive up to 160 MHz
20072007
* (including 80+80 MHz)
2008+
* @IEEE80211_STA_RX_BW_320: station can receive up to 320 MHz
20082009
*
20092010
* Implementation note: 20 must be zero to be initialized
20102011
* correctly, the values must be sorted.
@@ -2014,6 +2015,7 @@ enum ieee80211_sta_rx_bandwidth {
20142015
IEEE80211_STA_RX_BW_40,
20152016
IEEE80211_STA_RX_BW_80,
20162017
IEEE80211_STA_RX_BW_160,
2018+
IEEE80211_STA_RX_BW_320,
20172019
};
20182020

20192021
/**

‎net/mac80211/chan.c‎

Lines changed: 4 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -218,6 +218,8 @@ static enum nl80211_chan_width ieee80211_get_sta_bw(struct sta_info *sta)
218218
* might be smaller than the configured bw (160).
219219
*/
220220
return NL80211_CHAN_WIDTH_160;
221+
case IEEE80211_STA_RX_BW_320:
222+
return NL80211_CHAN_WIDTH_320;
221223
default:
222224
WARN_ON(1);
223225
return NL80211_CHAN_WIDTH_20;
@@ -417,14 +419,15 @@ static void ieee80211_change_chanctx(struct ieee80211_local *local,
417419
{
418420
u32 changed;
419421

420-
/* expected to handle only 20/40/80/160 channel widths */
422+
/* expected to handle only 20/40/80/160/320 channel widths */
421423
switch (chandef->width) {
422424
case NL80211_CHAN_WIDTH_20_NOHT:
423425
case NL80211_CHAN_WIDTH_20:
424426
case NL80211_CHAN_WIDTH_40:
425427
case NL80211_CHAN_WIDTH_80:
426428
case NL80211_CHAN_WIDTH_80P80:
427429
case NL80211_CHAN_WIDTH_160:
430+
case NL80211_CHAN_WIDTH_320:
428431
break;
429432
default:
430433
WARN_ON(1);

‎net/mac80211/ieee80211_i.h‎

Lines changed: 3 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -366,6 +366,8 @@ enum ieee80211_sta_flags {
366366
IEEE80211_STA_DISABLE_WMM = BIT(14),
367367
IEEE80211_STA_ENABLE_RRM = BIT(15),
368368
IEEE80211_STA_DISABLE_HE = BIT(16),
369+
IEEE80211_STA_DISABLE_EHT = BIT(17),
370+
IEEE80211_STA_DISABLE_320MHZ = BIT(18),
369371
};
370372

371373
struct ieee80211_mgd_auth_data {
@@ -2414,6 +2416,7 @@ bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info,
24142416
struct cfg80211_chan_def *chandef);
24152417
bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata,
24162418
const struct ieee80211_he_operation *he_oper,
2419+
const struct ieee80211_eht_operation *eht_oper,
24172420
struct cfg80211_chan_def *chandef);
24182421
bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie *oper,
24192422
struct cfg80211_chan_def *chandef);

‎net/mac80211/mesh.c‎

Lines changed: 3 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -1,7 +1,7 @@
11
// SPDX-License-Identifier: GPL-2.0-only
22
/*
33
* Copyright (c) 2008, 2009 open80211s Ltd.
4-
* Copyright (C) 2018 - 2020 Intel Corporation
4+
* Copyright (C) 2018 - 2021 Intel Corporation
55
* Authors: Luis Carlos Cobo <luisca@cozybit.com>
66
* Javier Cardona <javier@cozybit.com>
77
*/
@@ -104,7 +104,8 @@ bool mesh_matches_local(struct ieee80211_sub_if_data *sdata,
104104
ieee80211_chandef_vht_oper(&sdata->local->hw, vht_cap_info,
105105
ie->vht_operation, ie->ht_operation,
106106
&sta_chan_def);
107-
ieee80211_chandef_he_6ghz_oper(sdata, ie->he_operation, &sta_chan_def);
107+
ieee80211_chandef_he_6ghz_oper(sdata, ie->he_operation, NULL,
108+
&sta_chan_def);
108109

109110
if (!cfg80211_chandef_compatible(&sdata->vif.bss_conf.chandef,
110111
&sta_chan_def))

‎net/mac80211/mlme.c‎

Lines changed: 86 additions & 23 deletions
Original file line numberDiff line numberDiff line change
@@ -149,6 +149,7 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata,
149149
const struct ieee80211_ht_operation *ht_oper,
150150
const struct ieee80211_vht_operation *vht_oper,
151151
const struct ieee80211_he_operation *he_oper,
152+
const struct ieee80211_eht_operation *eht_oper,
152153
const struct ieee80211_s1g_oper_ie *s1g_oper,
153154
struct cfg80211_chan_def *chandef, bool tracking)
154155
{
@@ -164,12 +165,14 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata,
164165
chandef->freq1_offset = channel->freq_offset;
165166

166167
if (channel->band == NL80211_BAND_6GHZ) {
167-
if (!ieee80211_chandef_he_6ghz_oper(sdata, he_oper, chandef)) {
168+
if (!ieee80211_chandef_he_6ghz_oper(sdata, he_oper, eht_oper,
169+
chandef)) {
168170
mlme_dbg(sdata,
169-
"bad 6 GHz operation, disabling HT/VHT/HE\n");
171+
"bad 6 GHz operation, disabling HT/VHT/HE/EHT\n");
170172
ret = IEEE80211_STA_DISABLE_HT |
171173
IEEE80211_STA_DISABLE_VHT |
172-
IEEE80211_STA_DISABLE_HE;
174+
IEEE80211_STA_DISABLE_HE |
175+
IEEE80211_STA_DISABLE_EHT;
173176
} else {
174177
ret = 0;
175178
}
@@ -196,7 +199,8 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata,
196199
mlme_dbg(sdata, "HT operation missing / HT not supported\n");
197200
ret = IEEE80211_STA_DISABLE_HT |
198201
IEEE80211_STA_DISABLE_VHT |
199-
IEEE80211_STA_DISABLE_HE;
202+
IEEE80211_STA_DISABLE_HE |
203+
IEEE80211_STA_DISABLE_EHT;
200204
goto out;
201205
}
202206

@@ -219,7 +223,8 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata,
219223
ht_oper->primary_chan, channel->band);
220224
ret = IEEE80211_STA_DISABLE_HT |
221225
IEEE80211_STA_DISABLE_VHT |
222-
IEEE80211_STA_DISABLE_HE;
226+
IEEE80211_STA_DISABLE_HE |
227+
IEEE80211_STA_DISABLE_EHT;
223228
goto out;
224229
}
225230

@@ -260,7 +265,7 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata,
260265
if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HE))
261266
sdata_info(sdata,
262267
"HE AP VHT information is invalid, disabling HE\n");
263-
ret = IEEE80211_STA_DISABLE_HE;
268+
ret = IEEE80211_STA_DISABLE_HE | IEEE80211_STA_DISABLE_EHT;
264269
goto out;
265270
}
266271
} else if (!ieee80211_chandef_vht_oper(&sdata->local->hw,
@@ -340,7 +345,8 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata,
340345
if (WARN_ON(chandef->width == NL80211_CHAN_WIDTH_20_NOHT)) {
341346
ret = IEEE80211_STA_DISABLE_HT |
342347
IEEE80211_STA_DISABLE_VHT |
343-
IEEE80211_STA_DISABLE_HE;
348+
IEEE80211_STA_DISABLE_HE |
349+
IEEE80211_STA_DISABLE_EHT;
344350
break;
345351
}
346352

@@ -349,7 +355,11 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata,
349355

350356
if (!he_oper || !cfg80211_chandef_usable(sdata->wdev.wiphy, chandef,
351357
IEEE80211_CHAN_NO_HE))
352-
ret |= IEEE80211_STA_DISABLE_HE;
358+
ret |= IEEE80211_STA_DISABLE_HE | IEEE80211_STA_DISABLE_EHT;
359+
360+
if (!eht_oper || !cfg80211_chandef_usable(sdata->wdev.wiphy, chandef,
361+
IEEE80211_CHAN_NO_EHT))
362+
ret |= IEEE80211_STA_DISABLE_EHT;
353363

354364
if (chandef->width != vht_chandef.width && !tracking)
355365
sdata_info(sdata,
@@ -366,6 +376,7 @@ static int ieee80211_config_bw(struct ieee80211_sub_if_data *sdata,
366376
const struct ieee80211_ht_operation *ht_oper,
367377
const struct ieee80211_vht_operation *vht_oper,
368378
const struct ieee80211_he_operation *he_oper,
379+
const struct ieee80211_eht_operation *eht_oper,
369380
const struct ieee80211_s1g_oper_ie *s1g_oper,
370381
const u8 *bssid, u32 *changed)
371382
{
@@ -391,9 +402,16 @@ static int ieee80211_config_bw(struct ieee80211_sub_if_data *sdata,
391402
/* don't check HE if we associated as non-HE station */
392403
if (ifmgd->flags & IEEE80211_STA_DISABLE_HE ||
393404
!ieee80211_get_he_iftype_cap(sband,
394-
ieee80211_vif_type_p2p(&sdata->vif)))
395-
405+
ieee80211_vif_type_p2p(&sdata->vif))) {
396406
he_oper = NULL;
407+
eht_oper = NULL;
408+
}
409+
410+
/* don't check EHT if we associated as non-EHT station */
411+
if (ifmgd->flags & IEEE80211_STA_DISABLE_EHT ||
412+
!ieee80211_get_eht_iftype_cap(sband,
413+
ieee80211_vif_type_p2p(&sdata->vif)))
414+
eht_oper = NULL;
397415

398416
if (WARN_ON_ONCE(!sta))
399417
return -EINVAL;
@@ -413,7 +431,8 @@ static int ieee80211_config_bw(struct ieee80211_sub_if_data *sdata,
413431

414432
/* calculate new channel (type) based on HT/VHT/HE operation IEs */
415433
flags = ieee80211_determine_chantype(sdata, sband, chan, vht_cap_info,
416-
ht_oper, vht_oper, he_oper,
434+
ht_oper, vht_oper,
435+
he_oper, eht_oper,
417436
s1g_oper, &chandef, true);
418437

419438
/*
@@ -447,9 +466,11 @@ static int ieee80211_config_bw(struct ieee80211_sub_if_data *sdata,
447466
if (flags != (ifmgd->flags & (IEEE80211_STA_DISABLE_HT |
448467
IEEE80211_STA_DISABLE_VHT |
449468
IEEE80211_STA_DISABLE_HE |
469+
IEEE80211_STA_DISABLE_EHT |
450470
IEEE80211_STA_DISABLE_40MHZ |
451471
IEEE80211_STA_DISABLE_80P80MHZ |
452-
IEEE80211_STA_DISABLE_160MHZ)) ||
472+
IEEE80211_STA_DISABLE_160MHZ |
473+
IEEE80211_STA_DISABLE_320MHZ)) ||
453474
!cfg80211_chandef_valid(&chandef)) {
454475
sdata_info(sdata,
455476
"AP %pM changed caps/bw in a way we can't support (0x%x/0x%x) - disconnect\n",
@@ -990,13 +1011,14 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
9901011
&assoc_data->ap_vht_cap);
9911012

9921013
/*
993-
* If AP doesn't support HT, mark HE as disabled.
1014+
* If AP doesn't support HT, mark HE and EHT as disabled.
9941015
* If on the 5GHz band, make sure it supports VHT.
9951016
*/
9961017
if (ifmgd->flags & IEEE80211_STA_DISABLE_HT ||
9971018
(sband->band == NL80211_BAND_5GHZ &&
9981019
ifmgd->flags & IEEE80211_STA_DISABLE_VHT))
999-
ifmgd->flags |= IEEE80211_STA_DISABLE_HE;
1020+
ifmgd->flags |= IEEE80211_STA_DISABLE_HE |
1021+
IEEE80211_STA_DISABLE_EHT;
10001022

10011023
if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HE))
10021024
ieee80211_add_he_ie(sdata, skb, sband);
@@ -4258,6 +4280,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
42584280
if (ieee80211_config_bw(sdata, sta, elems->ht_cap_elem,
42594281
elems->vht_cap_elem, elems->ht_operation,
42604282
elems->vht_operation, elems->he_operation,
4283+
elems->eht_operation,
42614284
elems->s1g_oper, bssid, &changed)) {
42624285
mutex_unlock(&local->sta_mtx);
42634286
sdata_info(sdata,
@@ -5185,6 +5208,7 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata,
51855208
const struct ieee80211_ht_operation *ht_oper = NULL;
51865209
const struct ieee80211_vht_operation *vht_oper = NULL;
51875210
const struct ieee80211_he_operation *he_oper = NULL;
5211+
const struct ieee80211_eht_operation *eht_oper = NULL;
51885212
const struct ieee80211_s1g_oper_ie *s1g_oper = NULL;
51895213
struct ieee80211_supported_band *sband;
51905214
struct cfg80211_chan_def chandef;
@@ -5215,22 +5239,31 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata,
52155239

52165240
/* disable HT/VHT/HE if we don't support them */
52175241
if (!sband->ht_cap.ht_supported && !is_6ghz) {
5218-
mlme_dbg(sdata, "HT not supported, disabling HT/VHT/HE\n");
5242+
mlme_dbg(sdata, "HT not supported, disabling HT/VHT/HE/EHT\n");
52195243
ifmgd->flags |= IEEE80211_STA_DISABLE_HT;
52205244
ifmgd->flags |= IEEE80211_STA_DISABLE_VHT;
52215245
ifmgd->flags |= IEEE80211_STA_DISABLE_HE;
5246+
ifmgd->flags |= IEEE80211_STA_DISABLE_EHT;
52225247
}
52235248

52245249
if (!sband->vht_cap.vht_supported && is_5ghz) {
5225-
mlme_dbg(sdata, "VHT not supported, disabling VHT/HE\n");
5250+
mlme_dbg(sdata, "VHT not supported, disabling VHT/HE/EHT\n");
52265251
ifmgd->flags |= IEEE80211_STA_DISABLE_VHT;
52275252
ifmgd->flags |= IEEE80211_STA_DISABLE_HE;
5253+
ifmgd->flags |= IEEE80211_STA_DISABLE_EHT;
52285254
}
52295255

52305256
if (!ieee80211_get_he_iftype_cap(sband,
52315257
ieee80211_vif_type_p2p(&sdata->vif))) {
5232-
mlme_dbg(sdata, "HE not supported, disabling it\n");
5258+
mlme_dbg(sdata, "HE not supported, disabling HE and EHT\n");
52335259
ifmgd->flags |= IEEE80211_STA_DISABLE_HE;
5260+
ifmgd->flags |= IEEE80211_STA_DISABLE_EHT;
5261+
}
5262+
5263+
if (!ieee80211_get_eht_iftype_cap(sband,
5264+
ieee80211_vif_type_p2p(&sdata->vif))) {
5265+
mlme_dbg(sdata, "EHT not supported, disabling EHT\n");
5266+
ifmgd->flags |= IEEE80211_STA_DISABLE_EHT;
52345267
}
52355268

52365269
if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HT) && !is_6ghz) {
@@ -5252,6 +5285,7 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata,
52525285
ifmgd->flags |= IEEE80211_STA_DISABLE_HT;
52535286
ifmgd->flags |= IEEE80211_STA_DISABLE_VHT;
52545287
ifmgd->flags |= IEEE80211_STA_DISABLE_HE;
5288+
ifmgd->flags |= IEEE80211_STA_DISABLE_EHT;
52555289
}
52565290

52575291
if (!elems->vht_cap_elem) {
@@ -5291,7 +5325,29 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata,
52915325

52925326
if (!ieee80211_verify_peer_he_mcs_support(sdata, ies, he_oper) ||
52935327
!ieee80211_verify_sta_he_mcs_support(sdata, sband, he_oper))
5294-
ifmgd->flags |= IEEE80211_STA_DISABLE_HE;
5328+
ifmgd->flags |= IEEE80211_STA_DISABLE_HE |
5329+
IEEE80211_STA_DISABLE_EHT;
5330+
}
5331+
5332+
/*
5333+
* EHT requires HE to be supported as well. Specifically for 6 GHz
5334+
* channels, the operation channel information can only be deduced from
5335+
* both the 6 GHz operation information (from the HE operation IE) and
5336+
* EHT operation.
5337+
*/
5338+
if (!(ifmgd->flags & (IEEE80211_STA_DISABLE_HE |
5339+
IEEE80211_STA_DISABLE_EHT)) && he_oper) {
5340+
const struct cfg80211_bss_ies *ies;
5341+
const u8 *eht_oper_ie;
5342+
5343+
ies = rcu_dereference(cbss->ies);
5344+
eht_oper_ie = cfg80211_find_ext_ie(WLAN_EID_EXT_EHT_OPERATION,
5345+
ies->data, ies->len);
5346+
if (eht_oper_ie && eht_oper_ie[1] >=
5347+
1 + sizeof(struct ieee80211_eht_operation))
5348+
eht_oper = (void *)(eht_oper_ie + 3);
5349+
else
5350+
eht_oper = NULL;
52955351
}
52965352

52975353
/* Allow VHT if at least one channel on the sband supports 80 MHz */
@@ -5320,7 +5376,8 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata,
53205376
ifmgd->flags |= ieee80211_determine_chantype(sdata, sband,
53215377
cbss->channel,
53225378
bss->vht_cap_info,
5323-
ht_oper, vht_oper, he_oper,
5379+
ht_oper, vht_oper,
5380+
he_oper, eht_oper,
53245381
s1g_oper,
53255382
&chandef, false);
53265383

@@ -5811,18 +5868,20 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
58115868
ifmgd->flags |= IEEE80211_STA_DISABLE_HT;
58125869
ifmgd->flags |= IEEE80211_STA_DISABLE_VHT;
58135870
ifmgd->flags |= IEEE80211_STA_DISABLE_HE;
5871+
ifmgd->flags |= IEEE80211_STA_DISABLE_EHT;
58145872
netdev_info(sdata->dev,
58155873
"disabling HT/VHT/HE due to WEP/TKIP use\n");
58165874
}
58175875
}
58185876

58195877
sband = local->hw.wiphy->bands[req->bss->channel->band];
58205878

5821-
/* also disable HT/VHT/HE if the AP doesn't use WMM */
5879+
/* also disable HT/VHT/HE/EHT if the AP doesn't use WMM */
58225880
if (!bss->wmm_used) {
58235881
ifmgd->flags |= IEEE80211_STA_DISABLE_HT;
58245882
ifmgd->flags |= IEEE80211_STA_DISABLE_VHT;
58255883
ifmgd->flags |= IEEE80211_STA_DISABLE_HE;
5884+
ifmgd->flags |= IEEE80211_STA_DISABLE_EHT;
58265885
netdev_info(sdata->dev,
58275886
"disabling HT/VHT/HE as WMM/QoS is not supported by the AP\n");
58285887
}
@@ -5876,9 +5935,11 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
58765935
memcpy(&assoc_data->ap_vht_cap, vht_elem->data,
58775936
sizeof(struct ieee80211_vht_cap));
58785937
} else if (is_5ghz) {
5879-
sdata_info(sdata, "VHT capa missing/short, disabling VHT/HE\n");
5938+
sdata_info(sdata,
5939+
"VHT capa missing/short, disabling VHT/HE/EHT\n");
58805940
ifmgd->flags |= IEEE80211_STA_DISABLE_VHT |
5881-
IEEE80211_STA_DISABLE_HE;
5941+
IEEE80211_STA_DISABLE_HE |
5942+
IEEE80211_STA_DISABLE_EHT;
58825943
}
58835944
rcu_read_unlock();
58845945

@@ -5957,6 +6018,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
59576018
ifmgd->flags |= IEEE80211_STA_DISABLE_HT;
59586019
ifmgd->flags |= IEEE80211_STA_DISABLE_VHT;
59596020
ifmgd->flags |= IEEE80211_STA_DISABLE_HE;
6021+
ifmgd->flags |= IEEE80211_STA_DISABLE_EHT;
59606022
}
59616023

59626024
if (req->flags & ASSOC_REQ_DISABLE_VHT) {
@@ -5965,8 +6027,9 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
59656027
}
59666028

59676029
if (req->flags & ASSOC_REQ_DISABLE_HE) {
5968-
mlme_dbg(sdata, "HE disabled by flag, disabling VHT\n");
6030+
mlme_dbg(sdata, "HE disabled by flag, disabling HE/EHT\n");
59696031
ifmgd->flags |= IEEE80211_STA_DISABLE_HE;
6032+
ifmgd->flags |= IEEE80211_STA_DISABLE_EHT;
59706033
}
59716034

59726035
err = ieee80211_prep_connection(sdata, req->bss, true, override);

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