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authorNathan Huckleberry <nhuck@google.com>2022-09-29 11:27:03 -0700
committerJakub Kicinski <kuba@kernel.org>2022-10-03 16:40:16 -0700
commit450a580fc4b5e7f7fb8d9b1a0208bf0d1efc53a8 (patch)
treeb67e7c5285b9fd3bae981b203027e9936046c07c /drivers/net/ethernet
parenta08d97a1935bee66b099b21feddad19c1fd90d0e (diff)
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 <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/20220929182704.64438-1-nhuck@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet')
-rw-r--r--drivers/net/ethernet/microchip/lan966x/lan966x_main.c3
1 files changed, 2 insertions, 1 deletions
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;