Re: [PATCH 1/3] wifi: mt76: mt7915: remove VHT160 capability on MT7915

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Oleksandr Natalenko

21 Sep 2023 21 Sep '23

5:02 a.m.

Hello Felix.

On středa 26. července 2023 11:17:02 CEST Felix Fietkau wrote:

...

The IEEE80211_VHT_CAP_EXT_NSS_BW value already indicates support for half-NSS 160 MHz support, so it is wrong to also advertise full 160 MHz support.

Fixes: c2f73eacee3b ("wifi: mt76: mt7915: add back 160MHz channel width support for MT7915") Signed-off-by: Felix Fietkau nbd@nbd.name

drivers/net/wireless/mediatek/mt76/mt7915/init.c | 1 - 1 file changed, 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/init.c b/drivers/net/wireless/mediatek/mt76/mt7915/init.c index ee976657bfc3..78552f10b377 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/init.c @@ -414,7 +414,6 @@ mt7915_init_wiphy(struct mt7915_phy *phy) if (!dev->dbdc_support) vht_cap->cap |= IEEE80211_VHT_CAP_SHORT_GI_160 |
			IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
		FIELD_PREP(IEEE80211_VHT_CAP_EXT_NSS_BW_MASK, 1);
} else { vht_cap->cap |=

For some reason this got backported into the stable kernel:

``` $ git log --oneline v6.5.2..v6.5.4 -- drivers/net/wireless/mediatek/mt76/mt7915/ c43017fbebcc3 wifi: mt76: mt7915: fix power-limits while chan_switch edb1afe042c74 wifi: mt76: mt7915: fix tlv length of mt7915_mcu_get_chan_mib_info 9ec0dec0baea3 wifi: mt76: mt7915: remove VHT160 capability on MT7915 0e61f73e6ebc0 wifi: mt76: mt7915: fix capabilities in non-AP mode 6bce28ce28390 wifi: mt76: mt7915: fix command timeout in AP stop period 7af917d4864c6 wifi: mt76: mt7915: rework tx bytes counting when WED is active feae00c6468ce wifi: mt76: mt7915: rework tx packets counting when WED is active 70bbcc4ad6544 wifi: mt76: mt7915: fix background radar event being blocked ```

and this broke my mt7915-based AP.

However, if I remove `[VT160]` capability from the hostapd config, things go back to normal. It does seem that 160 MHz still works even.

Is this expected?

Please check.

Thanks.

-- Oleksandr Natalenko (post-factum)

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Greg Kroah-Hartman

21 Sep 21 Sep

7:19 a.m.

New subject: [PATCH 1/3] wifi: mt76: mt7915: remove VHT160 capability on MT7915

On Thu, Sep 21, 2023 at 07:02:41AM +0200, Oleksandr Natalenko wrote:

...

Hello Felix.

On středa 26. července 2023 11:17:02 CEST Felix Fietkau wrote:

...
The IEEE80211_VHT_CAP_EXT_NSS_BW value already indicates support for half-NSS 160 MHz support, so it is wrong to also advertise full 160 MHz support.

Fixes: c2f73eacee3b ("wifi: mt76: mt7915: add back 160MHz channel width support for MT7915") Signed-off-by: Felix Fietkau nbd@nbd.name

drivers/net/wireless/mediatek/mt76/mt7915/init.c | 1 - 1 file changed, 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/init.c b/drivers/net/wireless/mediatek/mt76/mt7915/init.c index ee976657bfc3..78552f10b377 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/init.c @@ -414,7 +414,6 @@ mt7915_init_wiphy(struct mt7915_phy *phy) if (!dev->dbdc_support) vht_cap->cap |= IEEE80211_VHT_CAP_SHORT_GI_160 |
			IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
		FIELD_PREP(IEEE80211_VHT_CAP_EXT_NSS_BW_MASK, 1);
} else { vht_cap->cap |=
For some reason this got backported into the stable kernel:
$ git log --oneline v6.5.2..v6.5.4 -- drivers/net/wireless/mediatek/mt76/mt7915/
c43017fbebcc3 wifi: mt76: mt7915: fix power-limits while chan_switch
edb1afe042c74 wifi: mt76: mt7915: fix tlv length of mt7915_mcu_get_chan_mib_info
9ec0dec0baea3 wifi: mt76: mt7915: remove VHT160 capability on MT7915
0e61f73e6ebc0 wifi: mt76: mt7915: fix capabilities in non-AP mode
6bce28ce28390 wifi: mt76: mt7915: fix command timeout in AP stop period
7af917d4864c6 wifi: mt76: mt7915: rework tx bytes counting when WED is active
feae00c6468ce wifi: mt76: mt7915: rework tx packets counting when WED is active
70bbcc4ad6544 wifi: mt76: mt7915: fix background radar event being blocked
and this broke my mt7915-based AP.

However, if I remove `[VT160]` capability from the hostapd config, things go back to normal. It does seem that 160 MHz still works even.

Is this expected?

Is your device also broken in 6.6-rc2?

thanks,

greg k-h

Oleksandr Natalenko

4:03 p.m.

New subject: [PATCH 1/3] wifi: mt76: mt7915: remove VHT160 capability on MT7915

Hello.

On čtvrtek 21. září 2023 9:19:58 CEST Greg Kroah-Hartman wrote:

...

On Thu, Sep 21, 2023 at 07:02:41AM +0200, Oleksandr Natalenko wrote:

...
Hello Felix.

On středa 26. července 2023 11:17:02 CEST Felix Fietkau wrote:

...
The IEEE80211_VHT_CAP_EXT_NSS_BW value already indicates support for half-NSS 160 MHz support, so it is wrong to also advertise full 160 MHz support.

Fixes: c2f73eacee3b ("wifi: mt76: mt7915: add back 160MHz channel width support for MT7915") Signed-off-by: Felix Fietkau nbd@nbd.name

drivers/net/wireless/mediatek/mt76/mt7915/init.c | 1 - 1 file changed, 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/init.c b/drivers/net/wireless/mediatek/mt76/mt7915/init.c index ee976657bfc3..78552f10b377 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/init.c @@ -414,7 +414,6 @@ mt7915_init_wiphy(struct mt7915_phy *phy) if (!dev->dbdc_support) vht_cap->cap |= IEEE80211_VHT_CAP_SHORT_GI_160 |
			IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
		FIELD_PREP(IEEE80211_VHT_CAP_EXT_NSS_BW_MASK, 1);
} else { vht_cap->cap |=
For some reason this got backported into the stable kernel:
$ git log --oneline v6.5.2..v6.5.4 -- drivers/net/wireless/mediatek/mt76/mt7915/
c43017fbebcc3 wifi: mt76: mt7915: fix power-limits while chan_switch
edb1afe042c74 wifi: mt76: mt7915: fix tlv length of mt7915_mcu_get_chan_mib_info
9ec0dec0baea3 wifi: mt76: mt7915: remove VHT160 capability on MT7915
0e61f73e6ebc0 wifi: mt76: mt7915: fix capabilities in non-AP mode
6bce28ce28390 wifi: mt76: mt7915: fix command timeout in AP stop period
7af917d4864c6 wifi: mt76: mt7915: rework tx bytes counting when WED is active
feae00c6468ce wifi: mt76: mt7915: rework tx packets counting when WED is active
70bbcc4ad6544 wifi: mt76: mt7915: fix background radar event being blocked
and this broke my mt7915-based AP.

However, if I remove `[VT160]` capability from the hostapd config, things go back to normal. It does seem that 160 MHz still works even.

Is this expected?
Is your device also broken in 6.6-rc2?

Yes, the same behaviour is observed with v6.6-rc2:

``` hostapd[1316]: Configured VHT capability [VHT_CAP_SUPP_CHAN_WIDTH_MASK] exceeds max value supported by the driver (1 > 0) ```

while having `[VT160]` in `vht_capab=`.

Thanks.

...

thanks,

greg k-h

-- Oleksandr Natalenko (post-factum)

Linux regression tracking (Thorsten Leemhuis)

29 Sep 29 Sep

11:26 a.m.

New subject: [PATCH 1/3] wifi: mt76: mt7915: remove VHT160 capability on MT7915

Seems nothing happened since this regression was reported more that a week ago. From a quick search on lore it seems Felix is not around currently; thus bringing the other mt76 maintainers in, maybe they can help out here to get this fixed rather sooner than later, as the culprit unfortunately made it to various stable trees. Ciao, Thorsten.

On 21.09.23 18:03, Oleksandr Natalenko wrote:

...

On čtvrtek 21. září 2023 9:19:58 CEST Greg Kroah-Hartman wrote:

...
On Thu, Sep 21, 2023 at 07:02:41AM +0200, Oleksandr Natalenko wrote:

...
On středa 26. července 2023 11:17:02 CEST Felix Fietkau wrote:

...
The IEEE80211_VHT_CAP_EXT_NSS_BW value already indicates support for half-NSS 160 MHz support, so it is wrong to also advertise full 160 MHz support.

Fixes: c2f73eacee3b ("wifi: mt76: mt7915: add back 160MHz channel width support for MT7915") Signed-off-by: Felix Fietkau nbd@nbd.name

drivers/net/wireless/mediatek/mt76/mt7915/init.c | 1 - 1 file changed, 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/init.c b/drivers/net/wireless/mediatek/mt76/mt7915/init.c index ee976657bfc3..78552f10b377 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/init.c @@ -414,7 +414,6 @@ mt7915_init_wiphy(struct mt7915_phy *phy) if (!dev->dbdc_support) vht_cap->cap |= IEEE80211_VHT_CAP_SHORT_GI_160 |
			IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
		FIELD_PREP(IEEE80211_VHT_CAP_EXT_NSS_BW_MASK, 1);
} else { vht_cap->cap |=
For some reason this got backported into the stable kernel:
$ git log --oneline v6.5.2..v6.5.4 -- drivers/net/wireless/mediatek/mt76/mt7915/
c43017fbebcc3 wifi: mt76: mt7915: fix power-limits while chan_switch
edb1afe042c74 wifi: mt76: mt7915: fix tlv length of mt7915_mcu_get_chan_mib_info
9ec0dec0baea3 wifi: mt76: mt7915: remove VHT160 capability on MT7915
0e61f73e6ebc0 wifi: mt76: mt7915: fix capabilities in non-AP mode
6bce28ce28390 wifi: mt76: mt7915: fix command timeout in AP stop period
7af917d4864c6 wifi: mt76: mt7915: rework tx bytes counting when WED is active
feae00c6468ce wifi: mt76: mt7915: rework tx packets counting when WED is active
70bbcc4ad6544 wifi: mt76: mt7915: fix background radar event being blocked
and this broke my mt7915-based AP.

However, if I remove `[VT160]` capability from the hostapd config, things go back to normal. It does seem that 160 MHz still works even.

Is this expected?
Is your device also broken in 6.6-rc2?
Yes, the same behaviour is observed with v6.6-rc2:
hostapd[1316]: Configured VHT capability [VHT_CAP_SUPP_CHAN_WIDTH_MASK] exceeds max value supported by the driver (1 > 0)
while having `[VT160]` in `vht_capab=`.

Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) -- Everything you wanna know about Linux kernel regression tracking: https://linux-regtracking.leemhuis.info/about/#tldr If I did something stupid, please tell me, as explained on that page.

#regzbot introduced 3ec5ac12ac8a4e #regzbot ignore-activity

Linux regression tracking #adding (Thorsten Leemhuis)

22 Sep 22 Sep

11:22 a.m.

New subject: [PATCH 1/3] wifi: mt76: mt7915: remove VHT160 capability on MT7915

[TLDR: I'm adding this report to the list of tracked Linux kernel regressions; the text you find below is based on a few templates paragraphs you might have encountered already in similar form. See link in footer if these mails annoy you.]

On 21.09.23 07:02, Oleksandr Natalenko wrote:

...

On středa 26. července 2023 11:17:02 CEST Felix Fietkau wrote:

...
The IEEE80211_VHT_CAP_EXT_NSS_BW value already indicates support for half-NSS 160 MHz support, so it is wrong to also advertise full 160 MHz support.

Fixes: c2f73eacee3b ("wifi: mt76: mt7915: add back 160MHz channel width support for MT7915") Signed-off-by: Felix Fietkau nbd@nbd.name

drivers/net/wireless/mediatek/mt76/mt7915/init.c | 1 - 1 file changed, 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/init.c b/drivers/net/wireless/mediatek/mt76/mt7915/init.c index ee976657bfc3..78552f10b377 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/init.c @@ -414,7 +414,6 @@ mt7915_init_wiphy(struct mt7915_phy *phy) if (!dev->dbdc_support) vht_cap->cap |= IEEE80211_VHT_CAP_SHORT_GI_160 |
			IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
		FIELD_PREP(IEEE80211_VHT_CAP_EXT_NSS_BW_MASK, 1);
} else { vht_cap->cap |=
For some reason this got backported into the stable kernel:
$ git log --oneline v6.5.2..v6.5.4 -- drivers/net/wireless/mediatek/mt76/mt7915/
c43017fbebcc3 wifi: mt76: mt7915: fix power-limits while chan_switch
edb1afe042c74 wifi: mt76: mt7915: fix tlv length of mt7915_mcu_get_chan_mib_info
9ec0dec0baea3 wifi: mt76: mt7915: remove VHT160 capability on MT7915
0e61f73e6ebc0 wifi: mt76: mt7915: fix capabilities in non-AP mode
6bce28ce28390 wifi: mt76: mt7915: fix command timeout in AP stop period
7af917d4864c6 wifi: mt76: mt7915: rework tx bytes counting when WED is active
feae00c6468ce wifi: mt76: mt7915: rework tx packets counting when WED is active
70bbcc4ad6544 wifi: mt76: mt7915: fix background radar event being blocked
and this broke my mt7915-based AP.

However, if I remove `[VT160]` capability from the hostapd config, things go back to normal. It does seem that 160 MHz still works even.

Is this expected?

Thanks for the report. To be sure the issue doesn't fall through the cracks unnoticed, I'm adding it to regzbot, the Linux kernel regression tracking bot:

#regzbot ^introduced 3ec5ac12ac8a4e..fe0ea395f0a351 #regzbot title wifi: mt76: mt7915: removal of VHT160 capability broke hostap #regzbot ignore-activity

This isn't a regression? This issue or a fix for it are already discussed somewhere else? It was fixed already? You want to clarify when the regression started to happen? Or point out I got the title or something else totally wrong? Then just reply and tell me -- ideally while also telling regzbot about it, as explained by the page listed in the footer of this mail.

Developers: When fixing the issue, remember to add 'Link:' tags pointing to the report (the parent of this mail). See page linked in footer for details.

Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) -- Everything you wanna know about Linux kernel regression tracking: https://linux-regtracking.leemhuis.info/about/#tldr That page also explains what to do if mails like this annoy you.

Linux regression tracking #update (Thorsten Leemhuis)

13 Oct 13 Oct

1:21 p.m.

New subject: [PATCH 1/3] wifi: mt76: mt7915: remove VHT160 capability on MT7915

[TLDR: This mail in primarily relevant for Linux kernel regression tracking. See link in footer if these mails annoy you.]

On 22.09.23 13:22, Linux regression tracking #adding (Thorsten Leemhuis) wrote:

...

On 21.09.23 07:02, Oleksandr Natalenko wrote:

...
On středa 26. července 2023 11:17:02 CEST Felix Fietkau wrote:

...
The IEEE80211_VHT_CAP_EXT_NSS_BW value already indicates support for half-NSS 160 MHz support, so it is wrong to also advertise full 160 MHz support.

[...]

...
and this broke my mt7915-based AP.

However, if I remove `[VT160]` capability from the hostapd config, things go back to normal. It does seem that 160 MHz still works even.

Is this expected?

Thanks for the report.

Removing this from the regression tracking after mentioning the intent to do so due to the tricky striation in my last report to Linus.

#regzbot inconclusive: tricky situation, no simple way out afaics #regzbot ignore-activity

Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) -- Everything you wanna know about Linux kernel regression tracking: https://linux-regtracking.leemhuis.info/about/#tldr That page also explains what to do if mails like this annoy you.

Nicolas Cavallari

29 Sep 29 Sep

12:59 p.m.

New subject: [PATCH 1/3] wifi: mt76: mt7915: remove VHT160 capability on MT7915

On 21/09/2023 07:02, Oleksandr Natalenko wrote:

...

Hello Felix.

On středa 26. července 2023 11:17:02 CEST Felix Fietkau wrote:

...
The IEEE80211_VHT_CAP_EXT_NSS_BW value already indicates support for half-NSS 160 MHz support, so it is wrong to also advertise full 160 MHz support.

Fixes: c2f73eacee3b ("wifi: mt76: mt7915: add back 160MHz channel width support for MT7915") Signed-off-by: Felix Fietkau nbd@nbd.name

drivers/net/wireless/mediatek/mt76/mt7915/init.c | 1 - 1 file changed, 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/init.c b/drivers/net/wireless/mediatek/mt76/mt7915/init.c index ee976657bfc3..78552f10b377 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/init.c @@ -414,7 +414,6 @@ mt7915_init_wiphy(struct mt7915_phy *phy) if (!dev->dbdc_support) vht_cap->cap |= IEEE80211_VHT_CAP_SHORT_GI_160 |
			IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
		FIELD_PREP(IEEE80211_VHT_CAP_EXT_NSS_BW_MASK, 1);
} else { vht_cap->cap |=
For some reason this got backported into the stable kernel:
$ git log --oneline v6.5.2..v6.5.4 -- drivers/net/wireless/mediatek/mt76/mt7915/
c43017fbebcc3 wifi: mt76: mt7915: fix power-limits while chan_switch
edb1afe042c74 wifi: mt76: mt7915: fix tlv length of mt7915_mcu_get_chan_mib_info
9ec0dec0baea3 wifi: mt76: mt7915: remove VHT160 capability on MT7915
0e61f73e6ebc0 wifi: mt76: mt7915: fix capabilities in non-AP mode
6bce28ce28390 wifi: mt76: mt7915: fix command timeout in AP stop period
7af917d4864c6 wifi: mt76: mt7915: rework tx bytes counting when WED is active
feae00c6468ce wifi: mt76: mt7915: rework tx packets counting when WED is active
70bbcc4ad6544 wifi: mt76: mt7915: fix background radar event being blocked
and this broke my mt7915-based AP.

However, if I remove `[VT160]` capability from the hostapd config, things go back to normal. It does seem that 160 MHz still works even.

Is this expected?

I would say it is expected.

hostapd seems to solely rely on the VHT Supported Channel Width and does not seem to support the VHT Extended NSS BW stuff. So it only knows about full VHT 160 MHz support and not about half NSS VHT 160 MHz.

The hardware does not actually support full 160 MHz (despite the driver erroneously claiming support for it before this patch) so it make sense that hostapd fails to start the AP if the config file requests (full) VHT 160 MHz.

However, hostapd knows about half NSS HE 160 MHz and I suspect your configuration also requests HE 160 MHz, so 160 MHz works fine in HE but not in VHT.

In any case, it would help to know the hostapd version and your configuration file.

Oleksandr Natalenko

8:36 p.m.

New subject: [PATCH 1/3] wifi: mt76: mt7915: remove VHT160 capability on MT7915

Hello.

On pátek 29. září 2023 14:59:26 CEST Nicolas Cavallari wrote:

...

On 21/09/2023 07:02, Oleksandr Natalenko wrote:

...
Hello Felix.

On středa 26. července 2023 11:17:02 CEST Felix Fietkau wrote:

...
The IEEE80211_VHT_CAP_EXT_NSS_BW value already indicates support for half-NSS 160 MHz support, so it is wrong to also advertise full 160 MHz support.

Fixes: c2f73eacee3b ("wifi: mt76: mt7915: add back 160MHz channel width support for MT7915") Signed-off-by: Felix Fietkau nbd@nbd.name

drivers/net/wireless/mediatek/mt76/mt7915/init.c | 1 - 1 file changed, 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/init.c b/drivers/net/wireless/mediatek/mt76/mt7915/init.c index ee976657bfc3..78552f10b377 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/init.c @@ -414,7 +414,6 @@ mt7915_init_wiphy(struct mt7915_phy *phy) if (!dev->dbdc_support) vht_cap->cap |= IEEE80211_VHT_CAP_SHORT_GI_160 |
			IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
		FIELD_PREP(IEEE80211_VHT_CAP_EXT_NSS_BW_MASK, 1);
} else { vht_cap->cap |=
For some reason this got backported into the stable kernel:
$ git log --oneline v6.5.2..v6.5.4 -- drivers/net/wireless/mediatek/mt76/mt7915/
c43017fbebcc3 wifi: mt76: mt7915: fix power-limits while chan_switch
edb1afe042c74 wifi: mt76: mt7915: fix tlv length of mt7915_mcu_get_chan_mib_info
9ec0dec0baea3 wifi: mt76: mt7915: remove VHT160 capability on MT7915
0e61f73e6ebc0 wifi: mt76: mt7915: fix capabilities in non-AP mode
6bce28ce28390 wifi: mt76: mt7915: fix command timeout in AP stop period
7af917d4864c6 wifi: mt76: mt7915: rework tx bytes counting when WED is active
feae00c6468ce wifi: mt76: mt7915: rework tx packets counting when WED is active
70bbcc4ad6544 wifi: mt76: mt7915: fix background radar event being blocked
and this broke my mt7915-based AP.

However, if I remove `[VT160]` capability from the hostapd config, things go back to normal. It does seem that 160 MHz still works even.

Is this expected?
I would say it is expected.

hostapd seems to solely rely on the VHT Supported Channel Width and does not seem to support the VHT Extended NSS BW stuff. So it only knows about full VHT 160 MHz support and not about half NSS VHT 160 MHz.

The hardware does not actually support full 160 MHz (despite the driver erroneously claiming support for it before this patch) so it make sense that hostapd fails to start the AP if the config file requests (full) VHT 160 MHz.

However, hostapd knows about half NSS HE 160 MHz and I suspect your configuration also requests HE 160 MHz, so 160 MHz works fine in HE but not in VHT.

I see, thanks for the explanation.

...

In any case, it would help to know the hostapd version and your configuration file.

It's 2.10 with the following config at the very moment:

``` interface=wlp1s0 ctrl_interface=/run/hostapd/wlp1s0 driver=nl80211 ssid=xxx utf8_ssid=1 interworking=1 ipaddr_type_availability=12 country_code=XX auth_algs=1 wpa=2 wpa_key_mgmt=WPA-PSK FT-PSK wpa_pairwise=CCMP rsn_pairwise=CCMP wpa_psk_file=/run/credentials/hostapd@wlp1s0.service/hostapd.wpa_psk macaddr_acl=1 accept_mac_file=/etc/hostapd/hostapd.accept noscan=1 hw_mode=a ieee80211n=1 channel=100 vht_oper_chwidth=2 vht_oper_centr_freq_seg0_idx=114 ieee80211ax=1 he_oper_chwidth=2 he_oper_centr_freq_seg0_idx=114 ieee80211w=1 ocv=1 ieee80211d=1 ieee80211h=1 wmm_enabled=1 ht_capab=[RXLDPC][HT40+][GF][SHORT-GI-20][SHORT-GI-40][TX-STBC][RX-STBC1][MAX-AMSDU-7935][DSSS_CCK-40] mobility_domain=abcd ft_psk_generate_local=1 pmk_r1_push=1 rsn_preauth=1 rsn_preauth_interfaces=wifi-br nas_identifier=yyy r1_key_holder=yyy r0kh=ff:ff:ff:ff:ff:ff * zzz r1kh=00:00:00:00:00:00 00:00:00:00:00:00 zzz disassoc_low_ack=1 fst_group_id=wifi-br fst_priority=100 mbo=1 mbo_cell_data_conn_pref=1 require_ht=1 ieee80211ac=1 require_vht=1 vht_capab=[MAX-MPDU-7991][RXLDPC][SHORT-GI-80][SHORT-GI-160][TX-STBC-2BY1][RX-STBC-1][SU-BEAMFORMER][SU-BEAMFORMEE][MU-BEAMFORMER][MU-BEAMFORMEE][RX-ANTENNA-PATTERN][TX-ANTENNA-PATTERN][MAX-A-MPDU-LEN-EXP7] ```

(I wonder if I did other obviously stupid things here)

-- Oleksandr Natalenko (post-factum)

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Greg Kroah-Hartman
Linux regression tracking #adding (Thorsten Leemhuis)
Linux regression tracking #update (Thorsten Leemhuis)
Linux regression tracking (Thorsten Leemhuis)
Nicolas Cavallari
Oleksandr Natalenko