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Date:   Wed, 21 Jul 2021 17:06:56 +0200
From:   Arnd Bergmann <arnd@...nel.org>
To:     Felix Fietkau <nbd@....name>,
        Lorenzo Bianconi <lorenzo.bianconi83@...il.com>,
        Kalle Valo <kvalo@...eaurora.org>
Cc:     Arnd Bergmann <arnd@...db.de>, Ryder Lee <ryder.lee@...iatek.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Shayne Chen <shayne.chen@...iatek.com>,
        Sean Wang <sean.wang@...iatek.com>,
        Soul Huang <Soul.Huang@...iatek.com>,
        Deren Wu <deren.wu@...iatek.com>,
        Xing Song <xing.song@...iatek.com>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] mt76: fix enum type mismatch

From: Arnd Bergmann <arnd@...db.de>

There is no 'NONE' version of 'enum mcu_cipher_type', and returning
'MT_CIPHER_NONE' causes a warning:

drivers/net/wireless/mediatek/mt76/mt7921/mcu.c: In function 'mt7921_mcu_get_cipher':
drivers/net/wireless/mediatek/mt76/mt7921/mcu.c:114:24: error: implicit conversion from 'enum mt76_cipher_type' to 'enum mcu_cipher_type' [-Werror=enum-conversion]
  114 |                 return MT_CIPHER_NONE;
      |                        ^~~~~~~~~~~~~~

Add the missing MCU_CIPHER_NONE defintion that fits in here with
the same value.

Fixes: c368362c36d3 ("mt76: fix iv and CCMP header insertion")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
This problem currently exists in 5.14-rc2, please ignore my patch
if a fix is already queued up elsewhere.
---
 drivers/net/wireless/mediatek/mt76/mt7915/mcu.c | 2 +-
 drivers/net/wireless/mediatek/mt76/mt7915/mcu.h | 3 ++-
 drivers/net/wireless/mediatek/mt76/mt7921/mcu.c | 2 +-
 drivers/net/wireless/mediatek/mt76/mt7921/mcu.h | 3 ++-
 4 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
index 863aa18b3024..43960770a9af 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
@@ -111,7 +111,7 @@ mt7915_mcu_get_cipher(int cipher)
 	case WLAN_CIPHER_SUITE_SMS4:
 		return MCU_CIPHER_WAPI;
 	default:
-		return MT_CIPHER_NONE;
+		return MCU_CIPHER_NONE;
 	}
 }
 
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
index edd3ba3a0c2d..e68a562cc5b4 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
@@ -1073,7 +1073,8 @@ enum {
 };
 
 enum mcu_cipher_type {
-	MCU_CIPHER_WEP40 = 1,
+	MCU_CIPHER_NONE = 0,
+	MCU_CIPHER_WEP40,
 	MCU_CIPHER_WEP104,
 	MCU_CIPHER_WEP128,
 	MCU_CIPHER_TKIP,
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
index cd690c64f65b..9fbaacc67cfa 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
@@ -111,7 +111,7 @@ mt7921_mcu_get_cipher(int cipher)
 	case WLAN_CIPHER_SUITE_SMS4:
 		return MCU_CIPHER_WAPI;
 	default:
-		return MT_CIPHER_NONE;
+		return MCU_CIPHER_NONE;
 	}
 }
 
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h
index d76cf8f8dfdf..de3c091f6736 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h
@@ -199,7 +199,8 @@ struct sta_rec_sec {
 } __packed;
 
 enum mcu_cipher_type {
-	MCU_CIPHER_WEP40 = 1,
+	MCU_CIPHER_NONE = 0,
+	MCU_CIPHER_WEP40,
 	MCU_CIPHER_WEP104,
 	MCU_CIPHER_WEP128,
 	MCU_CIPHER_TKIP,
-- 
2.29.2

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