USB: gadget: android: Use "rndis%d" for RNDIS device name instead of "usb%d"

Signed-off-by: Mike Lockwood <lockwood@android.com>

diff --git a/drivers/usb/gadget/android.c b/drivers/usb/gadget/android.c
index ebe6766..c82b43b 100644 (file)
--- a/drivers/usb/gadget/android.c
+++ b/drivers/usb/gadget/android.c
@@ -373,7 +373,7 @@ static int rndis_function_bind_config(struct android_usb_function *f,
                rndis->ethaddr[0], rndis->ethaddr[1], rndis->ethaddr[2],
                rndis->ethaddr[3], rndis->ethaddr[4], rndis->ethaddr[5]);
 
-       ret = gether_setup(c->cdev->gadget, rndis->ethaddr);
+       ret = gether_setup_name(c->cdev->gadget, rndis->ethaddr, "rndis");
        if (ret) {
                pr_err("%s: gether_setup failed\n", __func__);
                return ret;

diff --git a/drivers/usb/gadget/u_ether.c b/drivers/usb/gadget/u_ether.c
index 6590501..b5a30fe 100644 (file)
--- a/drivers/usb/gadget/u_ether.c
+++ b/drivers/usb/gadget/u_ether.c
@@ -765,6 +765,26 @@ static struct device_type gadget_type = {
  */
 int gether_setup(struct usb_gadget *g, u8 ethaddr[ETH_ALEN])
 {
+       return gether_setup_name(g, ethaddr, "usb");
+}
+
+/**
+ * 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
+ * gadget driver using this framework.  The link layer addresses are
+ * set up using module parameters.
+ *
+ * Returns negative errno, or zero on success
+ */
+int gether_setup_name(struct usb_gadget *g, u8 ethaddr[ETH_ALEN],
+               const char *netname)
+{
        struct eth_dev          *dev;
        struct net_device       *net;
        int                     status;
@@ -787,7 +807,7 @@ 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 5bb1021..64b65f9 100644 (file)
--- a/drivers/usb/gadget/u_ether.h
+++ b/drivers/usb/gadget/u_ether.h
@@ -86,6 +86,9 @@ struct gether {
 /* netdev setup/teardown as directed by the gadget driver */
 int gether_setup(struct usb_gadget *g, u8 ethaddr[ETH_ALEN]);
 void gether_cleanup(void);
+/* 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);
 
 /* connect/disconnect is handled by individual functions */
 struct net_device *gether_connect(struct gether *);