diff --git a/drivers/usb/gadget/u_ether.c b/drivers/usb/gadget/u_ether.c index 29c854bbca44..47cf48b51c9d 100644 --- a/drivers/usb/gadget/u_ether.c +++ b/drivers/usb/gadget/u_ether.c @@ -744,10 +744,11 @@ static struct device_type gadget_type = { }; /** - * gether_setup - initialize one ethernet-over-usb link + * gether_setup_name - initialize one ethernet-over-usb link * @g: gadget to associated with these links * @ethaddr: NULL, or a buffer in which the ethernet address of the * host side of the link is recorded + * @netname: name for network device (for example, "usb") * Context: may sleep * * This sets up the single network link that may be exported by a @@ -756,7 +757,8 @@ static struct device_type gadget_type = { * * Returns negative errno, or zero on success */ -int gether_setup(struct usb_gadget *g, u8 ethaddr[ETH_ALEN]) +int gether_setup_name(struct usb_gadget *g, u8 ethaddr[ETH_ALEN], + const char *netname) { struct eth_dev *dev; struct net_device *net; @@ -780,7 +782,7 @@ int gether_setup(struct usb_gadget *g, u8 ethaddr[ETH_ALEN]) /* network device setup */ dev->net = net; - strcpy(net->name, "usb%d"); + snprintf(net->name, sizeof(net->name), "%s%%d", netname); if (get_ether_addr(dev_addr, net->dev_addr)) dev_warn(&g->dev, diff --git a/drivers/usb/gadget/u_ether.h b/drivers/usb/gadget/u_ether.h index 8012357e98aa..6f128cd0d599 100644 --- a/drivers/usb/gadget/u_ether.h +++ b/drivers/usb/gadget/u_ether.h @@ -69,9 +69,28 @@ struct gether { |USB_CDC_PACKET_TYPE_PROMISCUOUS \ |USB_CDC_PACKET_TYPE_DIRECTED) +/* variant of gether_setup that allows customizing network device name */ +int gether_setup_name(struct usb_gadget *g, u8 ethaddr[ETH_ALEN], + const char *netname); /* netdev setup/teardown as directed by the gadget driver */ -int gether_setup(struct usb_gadget *g, u8 ethaddr[ETH_ALEN]); +/* gether_setup - initialize one ethernet-over-usb link + * @g: gadget to associated with these links + * @ethaddr: NULL, or a buffer in which the ethernet address of the + * host side of the link is recorded + * Context: may sleep + * + * This sets up the single network link that may be exported by a + * gadget driver using this framework. The link layer addresses are + * set up using module parameters. + * + * Returns negative errno, or zero on success + */ +static inline int gether_setup(struct usb_gadget *g, u8 ethaddr[ETH_ALEN]) +{ + return gether_setup_name(g, ethaddr, "usb"); +} + void gether_cleanup(void); /* connect/disconnect is handled by individual functions */