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>
diff --git a/drivers/usb/gadget/nokia.c b/drivers/usb/gadget/nokia.c
index 3b344b4..39f6cb5 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 @@
 /*-------------------------------------------------------------------------*/
 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 @@
 	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 @@
 			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;