The method ndo_start_xmit() is defined as returning an 'netdev_tx_t', which is a typedef for an enum type, so make sure the implementation in this driver has returns 'netdev_tx_t' value, and change the function return type to netdev_tx_t. Found by coccinelle. Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx> --- drivers/net/plip/plip.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/plip/plip.c b/drivers/net/plip/plip.c index feb92ec..0b354e6 100644 --- a/drivers/net/plip/plip.c +++ b/drivers/net/plip/plip.c @@ -146,7 +146,7 @@ static void plip_interrupt(void *dev_id); /* Functions for DEV methods */ -static int plip_tx_packet(struct sk_buff *skb, struct net_device *dev); +static netdev_tx_t plip_tx_packet(struct sk_buff *skb, struct net_device *dev); static int plip_hard_header(struct sk_buff *skb, struct net_device *dev, unsigned short type, const void *daddr, const void *saddr, unsigned len); @@ -962,7 +962,7 @@ static __be16 plip_type_trans(struct sk_buff *skb, struct net_device *dev) spin_unlock_irqrestore(&nl->lock, flags); } -static int +static netdev_tx_t plip_tx_packet(struct sk_buff *skb, struct net_device *dev) { struct net_local *nl = netdev_priv(dev); -- 1.8.3.1