USB: serial: remove bizarre generic_serial probe function

I can't remember why I wrote it like this many many years ago, but it's
not needed at all, let's rely on the usb-serial core for this function,
especially as it is being overridden by it anyway.

This lets us make usb_serial_probe() a static function, which it should
be.

Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/serial/generic.c

@@ -28,9 +28,6 @@ static int debug;
 
 #ifdef CONFIG_USB_SERIAL_GENERIC
 
-static int generic_probe(struct usb_interface *interface,
-			 const struct usb_device_id *id);
-
 static __u16 vendor  = 0x05f9;
 static __u16 product = 0xffff;
 
@@ -51,7 +48,6 @@ static const struct usb_device_id generic_serial_ids[] = {
 
 static struct usb_driver generic_driver = {
 	.name =		"usbserial_generic",
-	.probe =	generic_probe,
 	.id_table =	generic_serial_ids,
 };
 
@@ -74,16 +70,6 @@ static struct usb_serial_driver * const serial_drivers[] = {
 	&usb_serial_generic_device, NULL
 };
 
-static int generic_probe(struct usb_interface *interface,
-			       const struct usb_device_id *id)
-{
-	const struct usb_device_id *id_pattern;
-
-	id_pattern = usb_match_id(interface, generic_device_ids);
-	if (id_pattern != NULL)
-		return usb_serial_probe(interface, id);
-	return -ENODEV;
-}
 #endif
 
 int usb_serial_generic_register(int _debug)

drivers/usb/serial/usb-serial.c

@@ -699,7 +699,7 @@ static const struct tty_port_operations serial_port_ops = {
 	.shutdown = serial_down,
 };
 
-int usb_serial_probe(struct usb_interface *interface,
+static int usb_serial_probe(struct usb_interface *interface,
 			       const struct usb_device_id *id)
 {
 	struct usb_device *dev = interface_to_usbdev(interface);

include/linux/usb/serial.h

@@ -298,9 +298,6 @@ extern void usb_serial_deregister_drivers(struct usb_driver *udriver,
 		struct usb_serial_driver * const serial_drivers[]);
 extern void usb_serial_port_softint(struct usb_serial_port *port);
 
-extern int usb_serial_probe(struct usb_interface *iface,
-			    const struct usb_device_id *id);
-
 extern int usb_serial_suspend(struct usb_interface *intf, pm_message_t message);
 extern int usb_serial_resume(struct usb_interface *intf);