[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20221009221453.1216158-45-sashal@kernel.org>
Date: Sun, 9 Oct 2022 18:14:23 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc: Nathan Huckleberry <nhuck@...gle.com>,
Dan Carpenter <error27@...il.com>, llvm@...ts.linux.dev,
Nathan Chancellor <nathan@...nel.org>,
Gabriel Somlo <gsomlo@...il.com>,
Jakub Kicinski <kuba@...nel.org>,
Sasha Levin <sashal@...nel.org>, davem@...emloft.net,
edumazet@...gle.com, pabeni@...hat.com, kgugala@...micro.com,
mholenko@...micro.com, joel@....id.au, ndesaulniers@...gle.com,
netdev@...r.kernel.org
Subject: [PATCH AUTOSEL 5.19 45/73] net: ethernet: litex: Fix return type of liteeth_start_xmit
From: Nathan Huckleberry <nhuck@...gle.com>
[ Upstream commit 40662333dd7c64664247a6138bc33f3974e3a331 ]
The ndo_start_xmit field in net_device_ops is expected to be of type
netdev_tx_t (*ndo_start_xmit)(struct sk_buff *skb, struct net_device *dev).
The mismatched return type breaks forward edge kCFI since the underlying
function definition does not match the function hook definition.
The return type of liteeth_start_xmit should be changed from int to
netdev_tx_t.
Reported-by: Dan Carpenter <error27@...il.com>
Link: https://github.com/ClangBuiltLinux/linux/issues/1703
Cc: llvm@...ts.linux.dev
Signed-off-by: Nathan Huckleberry <nhuck@...gle.com>
Reviewed-by: Nathan Chancellor <nathan@...nel.org>
Acked-by: Gabriel Somlo <gsomlo@...il.com>
Link: https://lore.kernel.org/r/20220912195307.812229-1-nhuck@google.com
Signed-off-by: Jakub Kicinski <kuba@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
drivers/net/ethernet/litex/litex_liteeth.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/litex/litex_liteeth.c b/drivers/net/ethernet/litex/litex_liteeth.c
index fdd99f0de424..35f24e0f0934 100644
--- a/drivers/net/ethernet/litex/litex_liteeth.c
+++ b/drivers/net/ethernet/litex/litex_liteeth.c
@@ -152,7 +152,8 @@ static int liteeth_stop(struct net_device *netdev)
return 0;
}
-static int liteeth_start_xmit(struct sk_buff *skb, struct net_device *netdev)
+static netdev_tx_t liteeth_start_xmit(struct sk_buff *skb,
+ struct net_device *netdev)
{
struct liteeth *priv = netdev_priv(netdev);
void __iomem *txbuffer;
--
2.35.1
Powered by blists - more mailing lists