usb: gadget: u_ether: convert into module

u_ether.c has been #include'd by all gadgets which implement
USB Ethernet functions. In order to add configfs support,
the f_ecm.c, f_eem.c, f_ncm.c, f_subset.c, f_rndis.c need to be
converted into modules and must not be #include'd. Consequently,
the u_ether.c needs to be a module too, in a manner similar
to u_serial.c. The resulting module should not take any parameters,
so they are pushed to the current users of it, that is ether.c,
g_ffs.c, multi.c, ncm.c, nokia.c.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

10 files changed, 98 insertions, 52 deletions

diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index f9bf7283e538..d5ae4dff3b90 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -499,6 +499,9 @@ config USB_F_SS_LB
 config USB_U_SERIAL
         tristate
 
+config USB_U_ETHER
+        tristate
+
 config USB_F_SERIAL
         tristate
 
@@ -595,6 +598,7 @@ config USB_ETH
         tristate "Ethernet Gadget (with CDC Ethernet support)"
         depends on NET
         select USB_LIBCOMPOSITE
+        select USB_U_ETHER
         select CRC32
         help
           This driver implements Ethernet style communication, in one of
@@ -667,6 +671,7 @@ config USB_G_NCM
         tristate "Network Control Model (NCM) support"
         depends on NET
         select USB_LIBCOMPOSITE
+        select USB_U_ETHER
         select CRC32
         help
           This driver implements USB CDC NCM subclass standard. NCM is
@@ -710,6 +715,7 @@ config USB_FUNCTIONFS
 config USB_FUNCTIONFS_ETH
         bool "Include configuration with CDC ECM (Ethernet)"
         depends on USB_FUNCTIONFS && NET
+        select USB_U_ETHER
         help
           Include a configuration with CDC ECM function (Ethernet) and the
           Function Filesystem.
@@ -717,6 +723,7 @@ config USB_FUNCTIONFS_ETH
 config USB_FUNCTIONFS_RNDIS
         bool "Include configuration with RNDIS (Ethernet)"
         depends on USB_FUNCTIONFS && NET
+        select USB_U_ETHER
         help
           Include a configuration with RNDIS function (Ethernet) and the Filesystem.
 
@@ -817,6 +824,7 @@ config USB_CDC_COMPOSITE
         depends on NET
         select USB_LIBCOMPOSITE
         select USB_U_SERIAL
+        select USB_U_ETHER
         select USB_F_ACM
         help
           This driver provides two functions in one configuration:
@@ -834,6 +842,7 @@ config USB_G_NOKIA
         depends on PHONET
         select USB_LIBCOMPOSITE
         select USB_U_SERIAL
+        select USB_U_ETHER
         select USB_F_ACM
         help
           The Nokia composite gadget provides support for acm, obex
@@ -861,6 +870,7 @@ config USB_G_MULTI
         select USB_G_MULTI_CDC if !USB_G_MULTI_RNDIS
         select USB_LIBCOMPOSITE
         select USB_U_SERIAL
+        select USB_U_ETHER
         select USB_F_ACM
         help
           The Multifunction Composite Gadget provides Ethernet (RNDIS
diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile
index 6afd16659e78..b6c2bf7a3c2d 100644
--- a/drivers/usb/gadget/Makefile
+++ b/drivers/usb/gadget/Makefile
@@ -45,6 +45,7 @@ usb_f_serial-y			:= f_serial.o
 obj-$(CONFIG_USB_F_SERIAL)      += usb_f_serial.o
 usb_f_obex-y                    := f_obex.o
 obj-$(CONFIG_USB_F_OBEX)        += usb_f_obex.o
+obj-$(CONFIG_USB_U_ETHER)       += u_ether.o
 
 #
 # USB gadget drivers
diff --git a/drivers/usb/gadget/cdc2.c b/drivers/usb/gadget/cdc2.c
index 2c5255182769..bffa997fd040 100644
--- a/drivers/usb/gadget/cdc2.c
+++ b/drivers/usb/gadget/cdc2.c
@@ -35,6 +35,8 @@
 /*-------------------------------------------------------------------------*/
 USB_GADGET_COMPOSITE_OPTIONS();
 
+USB_ETHERNET_MODULE_PARAMETERS();
+
 /*
  * Kbuild is not very cooperative with respect to linking separately
  * compiled library objects into one module.  So for now we won't use
@@ -43,7 +45,6 @@ USB_GADGET_COMPOSITE_OPTIONS();
  * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
  */
 #include "f_ecm.c"
-#include "u_ether.c"
 
 /*-------------------------------------------------------------------------*/
 
@@ -102,7 +103,7 @@ static struct usb_gadget_strings *dev_strings[] = {
         NULL,
 };
 
-static u8 hostaddr[ETH_ALEN];
+static u8 host_mac[ETH_ALEN];
 static struct eth_dev *the_dev;
 /*-------------------------------------------------------------------------*/
 static struct usb_function *f_acm;
@@ -120,7 +121,7 @@ static int __init cdc_do_config(struct usb_configuration *c)
                 c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;
         }
 
-        status = ecm_bind_config(c, hostaddr, the_dev);
+        status = ecm_bind_config(c, host_mac, the_dev);
         if (status < 0)
                 return status;
 
@@ -166,7 +167,8 @@ static int __init cdc_bind(struct usb_composite_dev *cdev)
         }
 
         /* set up network link layer */
-        the_dev = gether_setup(cdev->gadget, hostaddr);
+        the_dev = gether_setup(cdev->gadget, dev_addr, host_addr, host_mac,
+                               qmult);
         if (IS_ERR(the_dev))
                 return PTR_ERR(the_dev);
 
diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c
index 56c8ecae9bc3..75418c7050fb 100644
--- a/drivers/usb/gadget/ether.c
+++ b/drivers/usb/gadget/ether.c
@@ -107,11 +107,12 @@ static inline bool has_rndis(void)
 #include "rndis.c"
 #endif
 #include "f_eem.c"
-#include "u_ether.c"
 
 /*-------------------------------------------------------------------------*/
 USB_GADGET_COMPOSITE_OPTIONS();
 
+USB_ETHERNET_MODULE_PARAMETERS();
+
 /* DO NOT REUSE THESE IDs with a protocol-incompatible driver!!  Ever!!
  * Instead:  allocate your own, using normal USB-IF procedures.
  */
@@ -206,7 +207,7 @@ static struct usb_gadget_strings *dev_strings[] = {
         NULL,
 };
 
-static u8 hostaddr[ETH_ALEN];
+static u8 host_mac[ETH_ALEN];
 static struct eth_dev *the_dev;
 /*-------------------------------------------------------------------------*/
 
@@ -224,7 +225,7 @@ static int __init rndis_do_config(struct usb_configuration *c)
                 c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;
         }
 
-        return rndis_bind_config(c, hostaddr, the_dev);
+        return rndis_bind_config(c, host_mac, the_dev);
 }
 
 static struct usb_configuration rndis_config_driver = {
@@ -259,9 +260,9 @@ static int __init eth_do_config(struct usb_configuration *c)
         if (use_eem)
                 return eem_bind_config(c, the_dev);
         else if (can_support_ecm(c->cdev->gadget))
-                return ecm_bind_config(c, hostaddr, the_dev);
+                return ecm_bind_config(c, host_mac, the_dev);
         else
-                return geth_bind_config(c, hostaddr, the_dev);
+                return geth_bind_config(c, host_mac, the_dev);
 }
 
 static struct usb_configuration eth_config_driver = {
@@ -279,7 +280,8 @@ static int __init eth_bind(struct usb_composite_dev *cdev)
         int                     status;
 
         /* set up network link layer */
-        the_dev = gether_setup(cdev->gadget, hostaddr);
+        the_dev = gether_setup(cdev->gadget, dev_addr, host_addr, host_mac,
+                               qmult);
         if (IS_ERR(the_dev))
                 return PTR_ERR(the_dev);
 
diff --git a/drivers/usb/gadget/g_ffs.c b/drivers/usb/gadget/g_ffs.c
index 787a78e92aa2..45f26be640de 100644
--- a/drivers/usb/gadget/g_ffs.c
+++ b/drivers/usb/gadget/g_ffs.c
@@ -34,9 +34,9 @@
 #    include "f_rndis.c"
 #    include "rndis.c"
 #  endif
-#  include "u_ether.c"
+#  include "u_ether.h"
 
-static u8 gfs_hostaddr[ETH_ALEN];
+static u8 gfs_host_mac[ETH_ALEN];
 static struct eth_dev *the_dev;
 #  ifdef CONFIG_USB_FUNCTIONFS_ETH
 static int eth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN],
@@ -45,7 +45,7 @@ static int eth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN],
 #else
 #  define the_dev       NULL
 #  define gether_cleanup(dev) do { } while (0)
-#  define gfs_hostaddr NULL
+#  define gfs_host_mac NULL
 struct eth_dev;
 #endif
 
@@ -73,6 +73,8 @@ struct gfs_ffs_obj {
 
 USB_GADGET_COMPOSITE_OPTIONS();
 
+USB_ETHERNET_MODULE_PARAMETERS();
+
 static struct usb_device_descriptor gfs_dev_desc = {
         .bLength                = sizeof gfs_dev_desc,
         .bDescriptorType        = USB_DT_DEVICE,
@@ -350,7 +352,8 @@ static int gfs_bind(struct usb_composite_dev *cdev)
         if (missing_funcs)
                 return -ENODEV;
 #if defined CONFIG_USB_FUNCTIONFS_ETH || defined CONFIG_USB_FUNCTIONFS_RNDIS
-        the_dev = gether_setup(cdev->gadget, gfs_hostaddr);
+        the_dev = gether_setup(cdev->gadget, dev_addr, host_addr, gfs_host_mac,
+                               qmult);
 #endif
         if (IS_ERR(the_dev)) {
                 ret = PTR_ERR(the_dev);
@@ -446,7 +449,7 @@ static int gfs_do_config(struct usb_configuration *c)
         }
 
         if (gc->eth) {
-                ret = gc->eth(c, gfs_hostaddr, the_dev);
+                ret = gc->eth(c, gfs_host_mac, the_dev);
                 if (unlikely(ret < 0))
                         return ret;
         }
diff --git a/drivers/usb/gadget/multi.c b/drivers/usb/gadget/multi.c
index 4a45e80c6e38..cdb8dbf34c8d 100644
--- a/drivers/usb/gadget/multi.c
+++ b/drivers/usb/gadget/multi.c
@@ -49,10 +49,12 @@ MODULE_LICENSE("GPL");
 #  include "f_rndis.c"
 #  include "rndis.c"
 #endif
-#include "u_ether.c"
+#include "u_ether.h"
 
 USB_GADGET_COMPOSITE_OPTIONS();
 
+USB_ETHERNET_MODULE_PARAMETERS();
+
 /***************************** Device Descriptor ****************************/
 
 #define MULTI_VENDOR_NUM        0x1d6b  /* Linux Foundation */
@@ -133,7 +135,7 @@ FSG_MODULE_PARAMETERS(/* no prefix */, fsg_mod_data);
 
 static struct fsg_common fsg_common;
 
-static u8 hostaddr[ETH_ALEN];
+static u8 host_mac[ETH_ALEN];
 
 static struct usb_function_instance *fi_acm;
 static struct eth_dev *the_dev;
@@ -152,7 +154,7 @@ static __init int rndis_do_config(struct usb_configuration *c)
                 c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;
         }
 
-        ret = rndis_bind_config(c, hostaddr, the_dev);
+        ret = rndis_bind_config(c, host_mac, the_dev);
         if (ret < 0)
                 return ret;
 
@@ -216,7 +218,7 @@ static __init int cdc_do_config(struct usb_configuration *c)
                 c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;
         }
 
-        ret = ecm_bind_config(c, hostaddr, the_dev);
+        ret = ecm_bind_config(c, host_mac, the_dev);
         if (ret < 0)
                 return ret;
 
@@ -280,7 +282,8 @@ static int __ref multi_bind(struct usb_composite_dev *cdev)
         }
 
         /* set up network link layer */
-        the_dev = gether_setup(cdev->gadget, hostaddr);
+        the_dev = gether_setup(cdev->gadget, dev_addr, host_addr, host_mac,
+                               qmult);
         if (IS_ERR(the_dev))
                 return PTR_ERR(the_dev);
 
diff --git a/drivers/usb/gadget/ncm.c b/drivers/usb/gadget/ncm.c
index 3b02fd4649ce..e411135b21e5 100644
--- a/drivers/usb/gadget/ncm.c
+++ b/drivers/usb/gadget/ncm.c
@@ -37,7 +37,6 @@
  * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
  */
 #include "f_ncm.c"
-#include "u_ether.c"
 
 /*-------------------------------------------------------------------------*/
 
@@ -54,6 +53,8 @@
 /*-------------------------------------------------------------------------*/
 USB_GADGET_COMPOSITE_OPTIONS();
 
+USB_ETHERNET_MODULE_PARAMETERS();
+
 static struct usb_device_descriptor device_desc = {
         .bLength =              sizeof device_desc,
         .bDescriptorType =      USB_DT_DEVICE,
@@ -112,7 +113,7 @@ static struct usb_gadget_strings *dev_strings[] = {
 };
 
 struct eth_dev *the_dev;
-static u8 hostaddr[ETH_ALEN];
+static u8 host_mac[ETH_ALEN];
 
 /*-------------------------------------------------------------------------*/
 
@@ -125,7 +126,7 @@ static int __init ncm_do_config(struct usb_configuration *c)
                 c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;
         }
 
-        return ncm_bind_config(c, hostaddr, the_dev);
+        return ncm_bind_config(c, host_mac, the_dev);
 }
 
 static struct usb_configuration ncm_config_driver = {
@@ -144,7 +145,8 @@ static int __init gncm_bind(struct usb_composite_dev *cdev)
         int                     status;
 
         /* set up network link layer */
-        the_dev = gether_setup(cdev->gadget, hostaddr);
+        the_dev = gether_setup(cdev->gadget, dev_addr, host_addr, host_mac,
+                               qmult);
         if (IS_ERR(the_dev))
                 return PTR_ERR(the_dev);
 
diff --git a/drivers/usb/gadget/nokia.c b/drivers/usb/gadget/nokia.c
index 3b344b41a167..39f6cb5f984d 100644
--- a/drivers/usb/gadget/nokia.c
+++ b/drivers/usb/gadget/nokia.c
@@ -41,11 +41,13 @@
 #include "f_ecm.c"
 #include "f_obex.c"
 #include "f_phonet.c"
-#include "u_ether.c"
+#include "u_ether.h"
 
 /*-------------------------------------------------------------------------*/
 USB_GADGET_COMPOSITE_OPTIONS();
 
+USB_ETHERNET_MODULE_PARAMETERS();
+
 #define NOKIA_VENDOR_ID                 0x0421  /* Nokia */
 #define NOKIA_PRODUCT_ID                0x01c8  /* Nokia Gadget */
 
@@ -98,7 +100,7 @@ MODULE_LICENSE("GPL");
 /*-------------------------------------------------------------------------*/
 static struct usb_function *f_acm_cfg1;
 static struct usb_function *f_acm_cfg2;
-static u8 hostaddr[ETH_ALEN];
+static u8 host_mac[ETH_ALEN];
 static struct eth_dev *the_dev;
 
 enum {
@@ -152,7 +154,7 @@ static int __init nokia_bind_config(struct usb_configuration *c)
         if (status)
                 goto err_conf;
 
-        status = ecm_bind_config(c, hostaddr, the_dev);
+        status = ecm_bind_config(c, host_mac, the_dev);
         if (status) {
                 pr_debug("could not bind ecm config %d\n", status);
                 goto err_ecm;
@@ -186,7 +188,8 @@ static int __init nokia_bind(struct usb_composite_dev *cdev)
                         goto err_ether;
         }
 
-        the_dev = gether_setup(cdev->gadget, hostaddr);
+        the_dev = gether_setup(cdev->gadget, dev_addr, host_addr, host_mac,
+                               qmult);
         if (IS_ERR(the_dev)) {
                 status = PTR_ERR(the_dev);
                 goto err_ether;
diff --git a/drivers/usb/gadget/u_ether.c b/drivers/usb/gadget/u_ether.c
index 4b76124ce96b..5f9dacfe6be5 100644
--- a/drivers/usb/gadget/u_ether.c
+++ b/drivers/usb/gadget/u_ether.c
@@ -63,6 +63,8 @@ struct eth_dev {
 
         struct sk_buff_head     rx_frames;
 
+        unsigned                qmult;
+
         unsigned                header_len;
         struct sk_buff          *(*wrap)(struct gether *, struct sk_buff *skb);
         int                     (*unwrap)(struct gether *,
@@ -84,12 +86,8 @@ struct eth_dev {
 
 #define DEFAULT_QLEN    2       /* double buffering by default */
 
-static unsigned qmult = 5;
-module_param(qmult, uint, S_IRUGO|S_IWUSR);
-MODULE_PARM_DESC(qmult, "queue length multiplier at high/super speed");
-
 /* for dual-speed hardware, use deeper queues at high/super speed */
-static inline int qlen(struct usb_gadget *gadget)
+static inline int qlen(struct usb_gadget *gadget, unsigned qmult)
 {
         if (gadget_is_dualspeed(gadget) && (gadget->speed == USB_SPEED_HIGH ||
                                             gadget->speed == USB_SPEED_SUPER))
@@ -588,7 +586,7 @@ static netdev_tx_t eth_start_xmit(struct sk_buff *skb,
         if (gadget_is_dualspeed(dev->gadget))
                 req->no_interrupt = (dev->gadget->speed == USB_SPEED_HIGH ||
                                      dev->gadget->speed == USB_SPEED_SUPER)
-                        ? ((atomic_read(&dev->tx_qlen) % qmult) != 0)
+                        ? ((atomic_read(&dev->tx_qlen) % dev->qmult) != 0)
                         : 0;
 
         retval = usb_ep_queue(in, req, GFP_ATOMIC);
@@ -697,16 +695,6 @@ static int eth_stop(struct net_device *net)
 
 /*-------------------------------------------------------------------------*/
 
-/* initial value, changed by "ifconfig usb0 hw ether xx:xx:xx:xx:xx:xx" */
-static char *dev_addr;
-module_param(dev_addr, charp, S_IRUGO);
-MODULE_PARM_DESC(dev_addr, "Device Ethernet Address");
-
-/* this address is invisible to ifconfig */
-static char *host_addr;
-module_param(host_addr, charp, S_IRUGO);
-MODULE_PARM_DESC(host_addr, "Host Ethernet Address");
-
 static int get_ether_addr(const char *str, u8 *dev_addr)
 {
         if (str) {
@@ -755,8 +743,9 @@ static struct device_type gadget_type = {
  *
  * Returns negative errno, or zero on success
  */
-struct eth_dev *gether_setup_name(struct usb_gadget *g, u8 ethaddr[ETH_ALEN],
-                const char *netname)
+struct eth_dev *gether_setup_name(struct usb_gadget *g,
+                const char *dev_addr, const char *host_addr,
+                u8 ethaddr[ETH_ALEN], unsigned qmult, const char *netname)
 {
         struct eth_dev          *dev;
         struct net_device       *net;
@@ -777,6 +766,7 @@ struct eth_dev *gether_setup_name(struct usb_gadget *g, u8 ethaddr[ETH_ALEN],
 
         /* network device setup */
         dev->net = net;
+        dev->qmult = qmult;
         snprintf(net->name, sizeof(net->name), "%s%%d", netname);
 
         if (get_ether_addr(dev_addr, net->dev_addr))
@@ -815,6 +805,7 @@ struct eth_dev *gether_setup_name(struct usb_gadget *g, u8 ethaddr[ETH_ALEN],
 
         return dev;
 }
+EXPORT_SYMBOL(gether_setup_name);
 
 /**
  * gether_cleanup - remove Ethernet-over-USB device
@@ -831,6 +822,7 @@ void gether_cleanup(struct eth_dev *dev)
         flush_work(&dev->work);
         free_netdev(dev->net);
 }
+EXPORT_SYMBOL(gether_cleanup);
 
 /**
  * gether_connect - notify network layer that USB link is active
@@ -873,11 +865,12 @@ struct net_device *gether_connect(struct gether *link)
         }
 
         if (result == 0)
-                result = alloc_requests(dev, link, qlen(dev->gadget));
+                result = alloc_requests(dev, link, qlen(dev->gadget,
+                                        dev->qmult));
 
         if (result == 0) {
                 dev->zlp = link->is_zlp_ok;
-                DBG(dev, "qlen %d\n", qlen(dev->gadget));
+                DBG(dev, "qlen %d\n", qlen(dev->gadget, dev->qmult));
 
                 dev->header_len = link->header_len;
                 dev->unwrap = link->unwrap;
@@ -910,6 +903,7 @@ fail0:
                 return ERR_PTR(result);
         return dev->net;
 }
+EXPORT_SYMBOL(gether_connect);
 
 /**
  * gether_disconnect - notify network layer that USB link is inactive
@@ -980,3 +974,7 @@ void gether_disconnect(struct gether *link)
         dev->port_usb = NULL;
         spin_unlock(&dev->lock);
 }
+EXPORT_SYMBOL(gether_disconnect);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("David Brownell");
diff --git a/drivers/usb/gadget/u_ether.h b/drivers/usb/gadget/u_ether.h
index 02522338a708..02f58acdd5e9 100644
--- a/drivers/usb/gadget/u_ether.h
+++ b/drivers/usb/gadget/u_ether.h
@@ -21,6 +21,26 @@
 
 #include "gadget_chips.h"
 
+#define QMULT_DEFAULT 5
+
+/*
+ * dev_addr: initial value
+ * changed by "ifconfig usb0 hw ether xx:xx:xx:xx:xx:xx"
+ * host_addr: this address is invisible to ifconfig
+ */
+#define USB_ETHERNET_MODULE_PARAMETERS() \
+        static unsigned qmult = QMULT_DEFAULT;                          \
+        module_param(qmult, uint, S_IRUGO|S_IWUSR);                     \
+        MODULE_PARM_DESC(qmult, "queue length multiplier at high/super speed");\
+                                                                        \
+        static char *dev_addr;                                          \
+        module_param(dev_addr, charp, S_IRUGO);                         \
+        MODULE_PARM_DESC(dev_addr, "Device Ethernet Address");          \
+                                                                        \
+        static char *host_addr;                                         \
+        module_param(host_addr, charp, S_IRUGO);                        \
+        MODULE_PARM_DESC(host_addr, "Host Ethernet Address")
+
 struct eth_dev;
 
 /*
@@ -71,8 +91,9 @@ struct gether {
                         |USB_CDC_PACKET_TYPE_DIRECTED)
 
 /* variant of gether_setup that allows customizing network device name */
-struct eth_dev *gether_setup_name(struct usb_gadget *g, u8 ethaddr[ETH_ALEN],
-                const char *netname);
+struct eth_dev *gether_setup_name(struct usb_gadget *g,
+                const char *dev_addr, const char *host_addr,
+                u8 ethaddr[ETH_ALEN], unsigned qmult, const char *netname);
 
 /* netdev setup/teardown as directed by the gadget driver */
 /* gether_setup - initialize one ethernet-over-usb link
@@ -88,9 +109,10 @@ struct eth_dev *gether_setup_name(struct usb_gadget *g, u8 ethaddr[ETH_ALEN],
  * Returns negative errno, or zero on success
  */
 static inline struct eth_dev *gether_setup(struct usb_gadget *g,
-                u8 ethaddr[ETH_ALEN])
+                const char *dev_addr, const char *host_addr,
+                u8 ethaddr[ETH_ALEN], unsigned qmult)
 {
-        return gether_setup_name(g, ethaddr, "usb");
+        return gether_setup_name(g, dev_addr, host_addr, ethaddr, qmult, "usb");
 }
 
 void gether_cleanup(struct eth_dev *dev);