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Message-Id: <20221009222436.1219411-7-sashal@kernel.org>
Date:   Sun,  9 Oct 2022 18:24:12 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     GUO Zihua <guozihua@...wei.com>, Jakub Kicinski <kuba@...nel.org>,
        Sasha Levin <sashal@...nel.org>, khalasa@...p.pl,
        davem@...emloft.net, edumazet@...gle.com, pabeni@...hat.com,
        netdev@...r.kernel.org
Subject: [PATCH AUTOSEL 4.19 07/25] net: xscale: Fix return type for implementation of ndo_start_xmit

From: GUO Zihua <guozihua@...wei.com>

[ Upstream commit 0dbaf0fa62329d9fe452d9041a707a33f6274f1f ]

Since Linux now supports CFI, it will be a good idea to fix mismatched
return type for implementation of hooks. Otherwise this might get
cought out by CFI and cause a panic.

eth_xmit() would return either NETDEV_TX_BUSY or NETDEV_TX_OK, so
change the return type to netdev_tx_t directly.

Signed-off-by: GUO Zihua <guozihua@...wei.com>
Link: https://lore.kernel.org/r/20220902081612.60405-1-guozihua@huawei.com
Signed-off-by: Jakub Kicinski <kuba@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/ethernet/xscale/ixp4xx_eth.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/xscale/ixp4xx_eth.c b/drivers/net/ethernet/xscale/ixp4xx_eth.c
index aee55c03def0..d2aed667c0da 100644
--- a/drivers/net/ethernet/xscale/ixp4xx_eth.c
+++ b/drivers/net/ethernet/xscale/ixp4xx_eth.c
@@ -835,7 +835,7 @@ static void eth_txdone_irq(void *unused)
 	}
 }
 
-static int eth_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t eth_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct port *port = netdev_priv(dev);
 	unsigned int txreadyq = port->plat->txreadyq;
-- 
2.35.1

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