We get a few warnings when building kernel with W=1: drivers/net/usb/lan78xx.c:1182:6: warning: no previous prototype for 'lan78xx_defer_kevent' [-Wmissing-prototypes] drivers/net/usb/lan78xx.c:1409:5: warning: no previous prototype for 'lan78xx_nway_reset' [-Wmissing-prototypes] drivers/net/usb/lan78xx.c:2000:5: warning: no previous prototype for 'lan78xx_set_mac_addr' [-Wmissing-prototypes] .... In fact, these functions are only used in the file in which they are declared and don't need a declaration, but can be made static. so this patch marks these functions with 'static'. Signed-off-by: Baoyou Xie <baoyou.xie@xxxxxxxxxx> --- drivers/net/usb/lan78xx.c | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-) diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c index 6a9d474..8c467a5 100644 --- a/drivers/net/usb/lan78xx.c +++ b/drivers/net/usb/lan78xx.c @@ -1179,7 +1179,7 @@ static int lan78xx_link_reset(struct lan78xx_net *dev) * NOTE: annoying asymmetry: if it's active, schedule_work() fails, * but tasklet_schedule() doesn't. hope the failure is rare. */ -void lan78xx_defer_kevent(struct lan78xx_net *dev, int work) +static void lan78xx_defer_kevent(struct lan78xx_net *dev, int work) { set_bit(work, &dev->flags); if (!schedule_delayed_work(&dev->wq, 0)) @@ -1406,7 +1406,7 @@ static u32 lan78xx_get_link(struct net_device *net) return net->phydev->link; } -int lan78xx_nway_reset(struct net_device *net) +static int lan78xx_nway_reset(struct net_device *net) { return phy_start_aneg(net->phydev); } @@ -1997,7 +1997,7 @@ static int lan78xx_change_mtu(struct net_device *netdev, int new_mtu) return 0; } -int lan78xx_set_mac_addr(struct net_device *netdev, void *p) +static int lan78xx_set_mac_addr(struct net_device *netdev, void *p) { struct lan78xx_net *dev = netdev_priv(netdev); struct sockaddr *addr = p; @@ -2371,7 +2371,7 @@ static void lan78xx_terminate_urbs(struct lan78xx_net *dev) remove_wait_queue(&unlink_wakeup, &wait); } -int lan78xx_stop(struct net_device *net) +static int lan78xx_stop(struct net_device *net) { struct lan78xx_net *dev = netdev_priv(net); @@ -2533,7 +2533,8 @@ static void lan78xx_queue_skb(struct sk_buff_head *list, entry->state = state; } -netdev_tx_t lan78xx_start_xmit(struct sk_buff *skb, struct net_device *net) +static netdev_tx_t +lan78xx_start_xmit(struct sk_buff *skb, struct net_device *net) { struct lan78xx_net *dev = netdev_priv(net); struct sk_buff *skb2 = NULL; @@ -2562,7 +2563,8 @@ netdev_tx_t lan78xx_start_xmit(struct sk_buff *skb, struct net_device *net) return NETDEV_TX_OK; } -int lan78xx_get_endpoints(struct lan78xx_net *dev, struct usb_interface *intf) +static int +lan78xx_get_endpoints(struct lan78xx_net *dev, struct usb_interface *intf) { int tmp; struct usb_host_interface *alt = NULL; @@ -2700,7 +2702,7 @@ static void lan78xx_rx_csum_offload(struct lan78xx_net *dev, } } -void lan78xx_skb_return(struct lan78xx_net *dev, struct sk_buff *skb) +static void lan78xx_skb_return(struct lan78xx_net *dev, struct sk_buff *skb) { int status; @@ -3285,7 +3287,7 @@ static void lan78xx_disconnect(struct usb_interface *intf) usb_put_dev(udev); } -void lan78xx_tx_timeout(struct net_device *net) +static void lan78xx_tx_timeout(struct net_device *net) { struct lan78xx_net *dev = netdev_priv(net); @@ -3605,7 +3607,7 @@ static int lan78xx_set_suspend(struct lan78xx_net *dev, u32 wol) return 0; } -int lan78xx_suspend(struct usb_interface *intf, pm_message_t message) +static int lan78xx_suspend(struct usb_interface *intf, pm_message_t message) { struct lan78xx_net *dev = usb_get_intfdata(intf); struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); @@ -3701,7 +3703,7 @@ out: return ret; } -int lan78xx_resume(struct usb_interface *intf) +static int lan78xx_resume(struct usb_interface *intf) { struct lan78xx_net *dev = usb_get_intfdata(intf); struct sk_buff *skb; @@ -3768,7 +3770,7 @@ int lan78xx_resume(struct usb_interface *intf) return 0; } -int lan78xx_reset_resume(struct usb_interface *intf) +static int lan78xx_reset_resume(struct usb_interface *intf) { struct lan78xx_net *dev = usb_get_intfdata(intf); -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html