From 450a580fc4b5e7f7fb8d9b1a0208bf0d1efc53a8 Mon Sep 17 00:00:00 2001 From: Nathan Huckleberry Date: Thu, 29 Sep 2022 11:27:03 -0700 Subject: net: lan966x: Fix return type of lan966x_port_xmit 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 lan966x_port_xmit should be changed from int to netdev_tx_t. Reported-by: Dan Carpenter Link: https://github.com/ClangBuiltLinux/linux/issues/1703 Cc: llvm@lists.linux.dev Signed-off-by: Nathan Huckleberry Reviewed-by: Nathan Chancellor Link: https://lore.kernel.org/r/20220929182704.64438-1-nhuck@google.com Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/microchip/lan966x/lan966x_main.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_main.c b/drivers/net/ethernet/microchip/lan966x/lan966x_main.c index b98d37c76edb..be2fd030cccb 100644 --- a/drivers/net/ethernet/microchip/lan966x/lan966x_main.c +++ b/drivers/net/ethernet/microchip/lan966x/lan966x_main.c @@ -344,7 +344,8 @@ static void lan966x_ifh_set_timestamp(void *ifh, u64 timestamp) IFH_POS_TIMESTAMP, IFH_LEN * 4, PACK, 0); } -static int lan966x_port_xmit(struct sk_buff *skb, struct net_device *dev) +static netdev_tx_t lan966x_port_xmit(struct sk_buff *skb, + struct net_device *dev) { struct lan966x_port *port = netdev_priv(dev); struct lan966x *lan966x = port->lan966x; -- cgit v1.2.3