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>

1 files changed, 26 insertions, 4 deletions

diff --git a/drivers/usb/gadget/u_ether.h b/drivers/usb/gadget/u_ether.h
index 02522338a70..02f58acdd5e 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);