From: Ryder Lee <ryder.lee@mediatek.com>
To: Felix Fietkau <nbd@nbd.name>
CC: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>, Shayne Chen
 <shayne.chen@mediatek.com>, Evelyn Tsai <evelyn.tsai@mediatek.com>, Sean Wang
 <sean.wang@mediatek.com>, <linux-wireless@vger.kernel.org>,
 <linux-mediatek@lists.infradead.org>, Ryder Lee <ryder.lee@mediatek.com>
Subject: [PATCH 2/2] mt76: mt7921: send EAPOL frames at lowest rate
Date: Sat, 17 Jul 2021 13:05:49 +0800

The firmware rate control may choose the high rate for EAPOL frames,
so checking IEEE80211_TX_CTL_USE_MINRATE to use the lowest TX rate.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
---
 drivers/net/wireless/mediatek/mt76/mt7921/mac.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
index 7fe2e3a50428..eb0d98c8d5d8 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
@@ -702,7 +702,8 @@ mt7921_mac_write_txwi_80211(struct mt7921_dev *dev, __le32 *txwi,
 		txwi[3] &= ~cpu_to_le32(MT_TXD3_PROTECT_FRAME);
 	}
 
-	if (!ieee80211_is_data(fc) || multicast)
+	if (!ieee80211_is_data(fc) || multicast ||
+	    info->flags & IEEE80211_TX_CTL_USE_MINRATE)
 		val |= MT_TXD2_FIX_RATE;
 
 	txwi[2] |= cpu_to_le32(val);