USB: refactor usb device matching and create usb_device_match

This is needed for the quirk match code.

Cc: Oliver Neukum <oliver@neukum.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index 2aded26..f9196a0 100644 (file)
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -366,19 +366,8 @@ void usb_driver_release_interface(struct usb_driver *driver,
 EXPORT_SYMBOL(usb_driver_release_interface);
 
 /* returns 0 if no match, 1 if match */
-int usb_match_one_id(struct usb_interface *interface,
-                    const struct usb_device_id *id)
+int usb_match_device(struct usb_device *dev, const struct usb_device_id *id)
 {
-       struct usb_host_interface *intf;
-       struct usb_device *dev;
-
-       /* proc_connectinfo in devio.c may call us with id == NULL. */
-       if (id == NULL)
-               return 0;
-
-       intf = interface->cur_altsetting;
-       dev = interface_to_usbdev(interface);
-
        if ((id->match_flags & USB_DEVICE_ID_MATCH_VENDOR) &&
            id->idVendor != le16_to_cpu(dev->descriptor.idVendor))
                return 0;
@@ -409,6 +398,26 @@ int usb_match_one_id(struct usb_interface *interface,
            (id->bDeviceProtocol != dev->descriptor.bDeviceProtocol))
                return 0;
 
+       return 1;
+}
+
+/* returns 0 if no match, 1 if match */
+int usb_match_one_id(struct usb_interface *interface,
+                    const struct usb_device_id *id)
+{
+       struct usb_host_interface *intf;
+       struct usb_device *dev;
+
+       /* proc_connectinfo in devio.c may call us with id == NULL. */
+       if (id == NULL)
+               return 0;
+
+       intf = interface->cur_altsetting;
+       dev = interface_to_usbdev(interface);
+
+       if (!usb_match_device(dev, id))
+               return 0;
+
        /* The interface class, subclass, and protocol should never be
         * checked for a match if the device class is Vendor Specific,
         * unless the match record specifies the Vendor ID. */

diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h
index 17830a8..86692a2 100644 (file)
--- a/drivers/usb/core/usb.h
+++ b/drivers/usb/core/usb.h
@@ -21,6 +21,8 @@ extern int usb_set_configuration(struct usb_device *dev, int configuration);
 
 extern void usb_kick_khubd(struct usb_device *dev);
 extern void usb_resume_root_hub(struct usb_device *dev);
+extern int usb_match_device(struct usb_device *dev,
+                           const struct usb_device_id *id);
 
 extern int  usb_hub_init(void);
 extern void usb_hub_cleanup(void);