[PATCH 6.0] mt76: fix 5 GHz connection regression on mt76x0/mt76x2

[PATCH 6.0] mt76: fix 5 GHz connection regression on mt76x0/mt76x2

[Felix Fietkau]

Some users have reported being unable to connect to MT76x0 APs running mt76
after a commit enabling the VHT extneded NSS BW feature.
Fix this regression by ensuring that this feature only gets enabled on drivers
that support it

Cc: stable@vger.kernel.org
Fixes: d9fcfc1424aa ("mt76: enable the VHT extended NSS BW feature")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
 drivers/net/wireless/mediatek/mt76/mac80211.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mac80211.c b/drivers/net/wireless/mediatek/mt76/mac80211.c
index 253cbc1956d1..6de13d641438 100644
--- a/drivers/net/wireless/mediatek/mt76/mac80211.c
+++ b/drivers/net/wireless/mediatek/mt76/mac80211.c
@@ -267,7 +267,8 @@ static void mt76_init_stream_cap(struct mt76_phy *phy,
 	}
 	vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
 	vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
-	vht_cap->vht_mcs.tx_highest |=
+	if (ieee80211_hw_check(phy->hw, SUPPORTS_VHT_EXT_NSS_BW))
+		vht_cap->vht_mcs.tx_highest |=
 				cpu_to_le16(IEEE80211_VHT_EXT_NSS_BW_CAPABLE);
 }
 
-- 
2.36.1

Re: [PATCH 6.0] mt76: fix 5 GHz connection regression on mt76x0/mt76x2

[Kalle Valo]

Felix Fietkau <nbd@nbd.name> writes:

> Some users have reported being unable to connect to MT76x0 APs running mt76
> after a commit enabling the VHT extneded NSS BW feature.
> Fix this regression by ensuring that this feature only gets enabled on drivers
> that support it
>
> Cc: stable@vger.kernel.org
> Fixes: d9fcfc1424aa ("mt76: enable the VHT extended NSS BW feature")
> Signed-off-by: Felix Fietkau <nbd@nbd.name>

I assigned this to me on patchwork and I'll queue this to v6.0.

-- 
https://patchwork.kernel.org/project/linux-wireless/list/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

Re: [6.0] wifi: mt76: fix 5 GHz connection regression on mt76x0/mt76x2

[Kalle Valo]

Felix Fietkau <nbd@nbd.name> wrote:

> Some users have reported being unable to connect to MT76x0 APs running mt76
> after a commit enabling the VHT extneded NSS BW feature.
> Fix this regression by ensuring that this feature only gets enabled on drivers
> that support it
> 
> Cc: stable@vger.kernel.org
> Fixes: d9fcfc1424aa ("mt76: enable the VHT extended NSS BW feature")
> Signed-off-by: Felix Fietkau <nbd@nbd.name>

Patch applied to wireless.git, thanks.

781b80f452fc wifi: mt76: fix 5 GHz connection regression on mt76x0/mt76x2

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20220907095228.82072-1-nbd@nbd.name/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches