This is a note to let you know that I've just added the patch titled wifi: mt76: mt7915: fix beamforming availability check to the 6.1-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: wifi-mt76-mt7915-fix-beamforming-availability-check.patch and it can be found in the queue-6.1 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit d8386284feabc865bb15a4a050a3039375080a0f Author: MeiChia Chiu <meichia.chiu@xxxxxxxxxxxx> Date: Thu Aug 31 14:22:21 2023 +0800 wifi: mt76: mt7915: fix beamforming availability check [ Upstream commit ced1a0b8f3944e44e7f4eb3772dea1bada25d38a ] Without this patch, when ap sets the tx stream number to 2, ap won't send any beamforming packet. Fixes: f89f297aef28 ("mt76: mt7915: fix txbf starec TLV issues") Signed-off-by: MeiChia Chiu <meichia.chiu@xxxxxxxxxxxx> Signed-off-by: Shayne Chen <shayne.chen@xxxxxxxxxxxx> Signed-off-by: Felix Fietkau <nbd@xxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c index bcfc30d669c20..b2ea539f697f7 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c @@ -988,13 +988,13 @@ mt7915_is_ebf_supported(struct mt7915_phy *phy, struct ieee80211_vif *vif, struct ieee80211_sta *sta, bool bfee) { struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv; - int tx_ant = hweight8(phy->mt76->chainmask) - 1; + int sts = hweight16(phy->mt76->chainmask); if (vif->type != NL80211_IFTYPE_STATION && vif->type != NL80211_IFTYPE_AP) return false; - if (!bfee && tx_ant < 2) + if (!bfee && sts < 2) return false; if (sta->deflink.he_cap.has_he) {