[][MAC80211][mt76][Fix the beamformer issue]
[Description]
Fix the HE-4.35.1_24G and HE-4.53.1_24G bf issue.
without this patch, when ap sets the tx stream number to 2,
ap doesn't send any beamform packets.
[Release-log]
N/A
Change-Id: I4a44bbe57b3a25f49f8b4ecf7a78dfb78efd2eee
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/7362563
diff --git a/autobuild_mac80211_release/package/kernel/mt76/patches/0004-wifi-mt76-mt7915-fix-the-beamformer-issue.patch b/autobuild_mac80211_release/package/kernel/mt76/patches/0004-wifi-mt76-mt7915-fix-the-beamformer-issue.patch
new file mode 100644
index 0000000..82ca87f
--- /dev/null
+++ b/autobuild_mac80211_release/package/kernel/mt76/patches/0004-wifi-mt76-mt7915-fix-the-beamformer-issue.patch
@@ -0,0 +1,36 @@
+From 647f71719101d8b623b1a7e8d7ba05845e8649aa Mon Sep 17 00:00:00 2001
+From: MeiChia Chiu <meichia.chiu@mediatek.com>
+Date: Wed, 12 Apr 2023 15:53:42 +0800
+Subject: [PATCH] wifi: mt76: mt7915: fix the beamformer issue
+
+without this patch, when ap sets the tx stream number to 2,
+ap doesn't send any beamform packets.
+
+Signed-off-by: MeiChia Chiu <MeiChia.Chiu@mediatek.com>
+---
+ mt7915/mcu.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/mt7915/mcu.c b/mt7915/mcu.c
+index 03ae3bc..927d932 100644
+--- a/mt7915/mcu.c
++++ b/mt7915/mcu.c
+@@ -1008,13 +1008,13 @@ 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) {
+--
+2.39.0
+