linux-kernel - [PATCH AUTOSEL 6.12 285/486] wifi: rtw88: Fix rtw_init_ht

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Message-Id: <20250505223922.2682012-285-sashal@kernel.org>
Date: Mon,  5 May 2025 18:36:01 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Bitterblue Smith <rtl8821cerfe2@...il.com>,
	Ping-Ke Shih <pkshih@...ltek.com>,
	Sasha Levin <sashal@...nel.org>,
	linux-wireless@...r.kernel.org
Subject: [PATCH AUTOSEL 6.12 285/486] wifi: rtw88: Fix rtw_init_ht_cap() for RTL8814AU

From: Bitterblue Smith <rtl8821cerfe2@...il.com>

[ Upstream commit c7eea1ba05ca5b0dbf77a27cf2e1e6e2fb3c0043 ]

Set the RX mask and the highest RX rate according to the number of
spatial streams the chip can receive. For RTL8814AU that is 3.

Signed-off-by: Bitterblue Smith <rtl8821cerfe2@...il.com>
Acked-by: Ping-Ke Shih <pkshih@...ltek.com>
Signed-off-by: Ping-Ke Shih <pkshih@...ltek.com>
Link: https://patch.msgid.link/4e786f50-ed1c-4387-8b28-e6ff00e35e81@gmail.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/wireless/realtek/rtw88/main.c | 17 ++++++-----------
 1 file changed, 6 insertions(+), 11 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c
index 2c81e4cae039e..a808af2f085ec 100644
--- a/drivers/net/wireless/realtek/rtw88/main.c
+++ b/drivers/net/wireless/realtek/rtw88/main.c
@@ -1543,6 +1543,7 @@ static void rtw_init_ht_cap(struct rtw_dev *rtwdev,
 {
 	const struct rtw_chip_info *chip = rtwdev->chip;
 	struct rtw_efuse *efuse = &rtwdev->efuse;
+	int i;
 
 	ht_cap->ht_supported = true;
 	ht_cap->cap = 0;
@@ -1562,17 +1563,11 @@ static void rtw_init_ht_cap(struct rtw_dev *rtwdev,
 	ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
 	ht_cap->ampdu_density = chip->ampdu_density;
 	ht_cap->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
-	if (efuse->hw_cap.nss > 1) {
-		ht_cap->mcs.rx_mask[0] = 0xFF;
-		ht_cap->mcs.rx_mask[1] = 0xFF;
-		ht_cap->mcs.rx_mask[4] = 0x01;
-		ht_cap->mcs.rx_highest = cpu_to_le16(300);
-	} else {
-		ht_cap->mcs.rx_mask[0] = 0xFF;
-		ht_cap->mcs.rx_mask[1] = 0x00;
-		ht_cap->mcs.rx_mask[4] = 0x01;
-		ht_cap->mcs.rx_highest = cpu_to_le16(150);
-	}
+
+	for (i = 0; i < efuse->hw_cap.nss; i++)
+		ht_cap->mcs.rx_mask[i] = 0xFF;
+	ht_cap->mcs.rx_mask[4] = 0x01;
+	ht_cap->mcs.rx_highest = cpu_to_le16(150 * efuse->hw_cap.nss);
 }
 
 static void rtw_init_vht_cap(struct rtw_dev *rtwdev,
-- 
2.39.5