linux-kernel - [PATCH 5.15 462/917] mt76: connac: fix mt76_connac_gtk_rekey

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Date:   Mon, 15 Nov 2021 17:59:17 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Sean Wang <sean.wang@...iatek.com>,
        Leon Yen <Leon.Yen@...iatek.com>, Felix Fietkau <nbd@....name>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.15 462/917] mt76: connac: fix mt76_connac_gtk_rekey_tlv usage

From: Leon Yen <Leon.Yen@...iatek.com>

[ Upstream commit d741abeafa47a7331cd4fe526e44db4ad3da0f62 ]

The mistaken structure is introduced since we added the GTK rekey offload
to mt7663. The patch fixes mt76_connac_gtk_rekey_tlv structure according
to the MT7663 and MT7921 firmware we have submitted into
linux-firmware.git.

Fixes: b47e21e75c80 ("mt76: mt7615: add gtk rekey offload support")
Signed-off-by: Sean Wang <sean.wang@...iatek.com>
Signed-off-by: Leon Yen <Leon.Yen@...iatek.com>
Signed-off-by: Felix Fietkau <nbd@....name>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
index 1c73beb226771..4bcd728ff97c5 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
@@ -844,14 +844,14 @@ struct mt76_connac_gtk_rekey_tlv {
 			* 2: rekey update
 			*/
 	u8 keyid;
-	u8 pad[2];
+	u8 option; /* 1: rekey data update without enabling offload */
+	u8 pad[1];
 	__le32 proto; /* WPA-RSN-WAPI-OPSN */
 	__le32 pairwise_cipher;
 	__le32 group_cipher;
 	__le32 key_mgmt; /* NONE-PSK-IEEE802.1X */
 	__le32 mgmt_group_cipher;
-	u8 option; /* 1: rekey data update without enabling offload */
-	u8 reserverd[3];
+	u8 reserverd[4];
 } __packed;
 
 #define MT76_CONNAC_WOW_MASK_MAX_LEN			16
-- 
2.33.0