Messages in this thread Patch in this message | | | From | Sasha Levin <> | Subject | [PATCH AUTOSEL 5.19 46/73] net: korina: Fix return type of korina_send_packet | Date | Sun, 9 Oct 2022 18:14:24 -0400 |
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From: Nathan Huckleberry <nhuck@google.com>
[ Upstream commit 106c67ce46f3c82dd276e983668a91d6ed631173 ]
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 korina_send_packet should be changed from int to netdev_tx_t.
Reported-by: Dan Carpenter <error27@gmail.com> Link: https://github.com/ClangBuiltLinux/linux/issues/1703 Cc: llvm@lists.linux.dev Signed-off-by: Nathan Huckleberry <nhuck@google.com> Reviewed-by: Nathan Chancellor <nathan@kernel.org> Link: https://lore.kernel.org/r/20220912214344.928925-1-nhuck@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/net/ethernet/korina.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/korina.c b/drivers/net/ethernet/korina.c index df9a8eefa007..eec6a9ec528b 100644 --- a/drivers/net/ethernet/korina.c +++ b/drivers/net/ethernet/korina.c @@ -416,7 +416,8 @@ static void korina_abort_rx(struct net_device *dev) } /* transmit packet */ -static int korina_send_packet(struct sk_buff *skb, struct net_device *dev) +static netdev_tx_t korina_send_packet(struct sk_buff *skb, + struct net_device *dev) { struct korina_private *lp = netdev_priv(dev); u32 chain_prev, chain_next; -- 2.35.1
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