usb: gadget: composite: add usb_remove_function()
This will be used to remove a single function from a given config. Right
now "ignore" that an error at ->bind() time and cleanup later during
composite_unbind() / remove_config().
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h
index 3834e33..8c7a629 100644
--- a/include/linux/usb/composite.h
+++ b/include/linux/usb/composite.h
@@ -461,6 +461,7 @@
int val);
int usb_add_config_only(struct usb_composite_dev *cdev,
struct usb_configuration *config);
+void usb_remove_function(struct usb_configuration *c, struct usb_function *f);
#define DECLARE_USB_FUNCTION(_name, _inst_alloc, _func_alloc) \
static struct usb_function_driver _name ## usb_func = { \