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Commit 782e70c6 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
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USB: mark USB drivers as being GPL only 



Over two years ago, the Linux USB developers stated that they believed
there was no way to create a USB kernel driver that was not under the
GPL.  This patch moves the USB apis to enforce that decision.

There are no known closed source USB drivers in the wild, so this patch
should cause no problems.

Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 667d691e

Documentation/feature-removal-schedule.txt

+0 −16
Original line number Diff line number Diff line
@@ -156,22 +156,6 @@ Who: Arjan van de Ven <arjan@linux.intel.com> 


---------------------------



What:	USB driver API moves to EXPORT_SYMBOL_GPL

When:	February 2008

Files:	include/linux/usb.h, drivers/usb/core/driver.c

Why:	The USB subsystem has changed a lot over time, and it has been

	possible to create userspace USB drivers using usbfs/libusb/gadgetfs

	that operate as fast as the USB bus allows.  Because of this, the USB

	subsystem will not be allowing closed source kernel drivers to

	register with it, after this grace period is over.  If anyone needs

	any help in converting their closed source drivers over to use the

	userspace filesystems, please contact the

	linux-usb-devel@lists.sourceforge.net mailing list, and the developers

	there will be glad to help you out.

Who:	Greg Kroah-Hartman <gregkh@suse.de>



---------------------------



What:	vm_ops.nopage

When:	Soon, provided in-kernel callers have been converted

Why:	This interface is replaced by vm_ops.fault, but it has been around

drivers/usb/core/driver.c

+5 −5
Original line number Diff line number Diff line
@@ -325,7 +325,7 @@ int usb_driver_claim_interface(struct usb_driver *driver, 


	return retval;

}

EXPORT_SYMBOL(usb_driver_claim_interface);

EXPORT_SYMBOL_GPL(usb_driver_claim_interface);



/**

 * usb_driver_release_interface - unbind a driver from an interface
@@ -370,7 +370,7 @@ void usb_driver_release_interface(struct usb_driver *driver, 
	iface->needs_remote_wakeup = 0;

	usb_pm_unlock(udev);

}

EXPORT_SYMBOL(usb_driver_release_interface);

EXPORT_SYMBOL_GPL(usb_driver_release_interface);



/* returns 0 if no match, 1 if match */

int usb_match_device(struct usb_device *dev, const struct usb_device_id *id)
@@ -542,7 +542,7 @@ const struct usb_device_id *usb_match_id(struct usb_interface *interface, 


	return NULL;

}

EXPORT_SYMBOL_GPL_FUTURE(usb_match_id);

EXPORT_SYMBOL_GPL(usb_match_id);



static int usb_device_match(struct device *dev, struct device_driver *drv)

{
@@ -745,7 +745,7 @@ int usb_register_driver(struct usb_driver *new_driver, struct module *owner, 


	return retval;

}

EXPORT_SYMBOL_GPL_FUTURE(usb_register_driver);

EXPORT_SYMBOL_GPL(usb_register_driver);



/**

 * usb_deregister - unregister a USB interface driver
@@ -769,7 +769,7 @@ void usb_deregister(struct usb_driver *driver) 


	usbfs_update_special();

}

EXPORT_SYMBOL_GPL_FUTURE(usb_deregister);

EXPORT_SYMBOL_GPL(usb_deregister);



#ifdef CONFIG_PM

drivers/usb/core/file.c

+2 −2
Original line number Diff line number Diff line
@@ -204,7 +204,7 @@ int usb_register_dev(struct usb_interface *intf, 
exit:

	return retval;

}

EXPORT_SYMBOL(usb_register_dev);

EXPORT_SYMBOL_GPL(usb_register_dev);



/**

 * usb_deregister_dev - deregister a USB device's dynamic minor.
@@ -245,4 +245,4 @@ void usb_deregister_dev(struct usb_interface *intf, 
	intf->minor = -1;

	destroy_usb_class();

}

EXPORT_SYMBOL(usb_deregister_dev);
 
EXPORT_SYMBOL_GPL(usb_deregister_dev);

drivers/usb/core/hcd-pci.c

+5 −5
Original line number Diff line number Diff line
@@ -144,7 +144,7 @@ int usb_hcd_pci_probe (struct pci_dev *dev, const struct pci_device_id *id) 
	dev_err (&dev->dev, "init %s fail, %d\n", pci_name(dev), retval);

	return retval;

} 

EXPORT_SYMBOL (usb_hcd_pci_probe);

EXPORT_SYMBOL_GPL(usb_hcd_pci_probe);





/* may be called without controller electrically present */
@@ -179,7 +179,7 @@ void usb_hcd_pci_remove (struct pci_dev *dev) 
	usb_put_hcd (hcd);

	pci_disable_device(dev);

}

EXPORT_SYMBOL (usb_hcd_pci_remove);

EXPORT_SYMBOL_GPL(usb_hcd_pci_remove);





#ifdef	CONFIG_PM
@@ -314,7 +314,7 @@ done: 


	return retval;

}

EXPORT_SYMBOL (usb_hcd_pci_suspend);

EXPORT_SYMBOL_GPL(usb_hcd_pci_suspend);



/**

 * usb_hcd_pci_resume - power management resume of a PCI-based HCD
@@ -416,7 +416,7 @@ int usb_hcd_pci_resume (struct pci_dev *dev) 


	return retval;

}

EXPORT_SYMBOL (usb_hcd_pci_resume);

EXPORT_SYMBOL_GPL(usb_hcd_pci_resume);



#endif	/* CONFIG_PM */
@@ -435,5 +435,5 @@ void usb_hcd_pci_shutdown (struct pci_dev *dev) 
	if (hcd->driver->shutdown)

		hcd->driver->shutdown(hcd);

}

EXPORT_SYMBOL (usb_hcd_pci_shutdown);

EXPORT_SYMBOL_GPL(usb_hcd_pci_shutdown);

drivers/usb/core/hcd.c

+9 −9
Original line number Diff line number Diff line
@@ -971,7 +971,7 @@ long usb_calc_bus_time (int speed, int is_input, int isoc, int bytecount) 
		return -1;

	}

}

EXPORT_SYMBOL (usb_calc_bus_time);

EXPORT_SYMBOL_GPL(usb_calc_bus_time);





/*-------------------------------------------------------------------------*/
@@ -1427,7 +1427,7 @@ void usb_hcd_giveback_urb(struct usb_hcd *hcd, struct urb *urb, int status) 
		wake_up (&usb_kill_urb_queue);

	usb_put_urb (urb);

}

EXPORT_SYMBOL (usb_hcd_giveback_urb);

EXPORT_SYMBOL_GPL(usb_hcd_giveback_urb);



/*-------------------------------------------------------------------------*/
@@ -1667,7 +1667,7 @@ int usb_bus_start_enum(struct usb_bus *bus, unsigned port_num) 
		mod_timer(&hcd->rh_timer, jiffies + msecs_to_jiffies(10));

	return status;

}

EXPORT_SYMBOL (usb_bus_start_enum);

EXPORT_SYMBOL_GPL(usb_bus_start_enum);



#endif
@@ -1774,7 +1774,7 @@ struct usb_hcd *usb_create_hcd (const struct hc_driver *driver, 
			"USB Host Controller";

	return hcd;

}

EXPORT_SYMBOL (usb_create_hcd);

EXPORT_SYMBOL_GPL(usb_create_hcd);



static void hcd_release (struct kref *kref)

{
@@ -1789,14 +1789,14 @@ struct usb_hcd *usb_get_hcd (struct usb_hcd *hcd) 
		kref_get (&hcd->kref);

	return hcd;

}

EXPORT_SYMBOL (usb_get_hcd);

EXPORT_SYMBOL_GPL(usb_get_hcd);



void usb_put_hcd (struct usb_hcd *hcd)

{

	if (hcd)

		kref_put (&hcd->kref, hcd_release);

}

EXPORT_SYMBOL (usb_put_hcd);

EXPORT_SYMBOL_GPL(usb_put_hcd);



/**

 * usb_add_hcd - finish generic HCD structure initialization and register
@@ -1922,7 +1922,7 @@ err_register_bus: 
	hcd_buffer_destroy(hcd);

	return retval;

} 

EXPORT_SYMBOL (usb_add_hcd);

EXPORT_SYMBOL_GPL(usb_add_hcd);



/**

 * usb_remove_hcd - shutdown processing for generic HCDs
@@ -1964,7 +1964,7 @@ void usb_remove_hcd(struct usb_hcd *hcd) 
	usb_deregister_bus(&hcd->self);

	hcd_buffer_destroy(hcd);

}

EXPORT_SYMBOL (usb_remove_hcd);

EXPORT_SYMBOL_GPL(usb_remove_hcd);



void

usb_hcd_platform_shutdown(struct platform_device* dev)
@@ -1974,7 +1974,7 @@ usb_hcd_platform_shutdown(struct platform_device* dev) 
	if (hcd->driver->shutdown)

		hcd->driver->shutdown(hcd);

}

EXPORT_SYMBOL (usb_hcd_platform_shutdown);

EXPORT_SYMBOL_GPL(usb_hcd_platform_shutdown);



/*-------------------------------------------------------------------------*/