linux-kernel - [PATCH 5.5 042/120] mt76: mt7615: fix max_nss in mt7615_eeprom_parse_hw

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Message-Id: <20200213151916.014391631@linuxfoundation.org>
Date:   Thu, 13 Feb 2020 07:20:38 -0800
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Lorenzo Bianconi <lorenzo@...nel.org>,
        Kalle Valo <kvalo@...eaurora.org>
Subject: [PATCH 5.5 042/120] mt76: mt7615: fix max_nss in mt7615_eeprom_parse_hw_cap

From: Lorenzo Bianconi <lorenzo@...nel.org>

commit d08f3010f4a32eec3c8aa771f03a1b342a1472fa upstream.

Fix u8 cast reading max_nss from MT_TOP_STRAP_STA register in
mt7615_eeprom_parse_hw_cap routine

Fixes: acf5457fd99db ("mt76: mt7615: read {tx,rx} mask from eeprom")
Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
Signed-off-by: Kalle Valo <kvalo@...eaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/net/wireless/mediatek/mt76/mt7615/eeprom.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/net/wireless/mediatek/mt76/mt7615/eeprom.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/eeprom.c
@@ -92,8 +92,9 @@ static int mt7615_check_eeprom(struct mt
 
 static void mt7615_eeprom_parse_hw_cap(struct mt7615_dev *dev)
 {
-	u8 val, *eeprom = dev->mt76.eeprom.data;
+	u8 *eeprom = dev->mt76.eeprom.data;
 	u8 tx_mask, rx_mask, max_nss;
+	u32 val;
 
 	val = FIELD_GET(MT_EE_NIC_WIFI_CONF_BAND_SEL,
 			eeprom[MT_EE_WIFI_CONF]);