[PATCH] add EXPORT_SYMBOL_GPL_FUTURE() to USB subsystem

The USB core symbols will be converted to GPL-only in a few years.  Mark
this as such and update the documentation explaining why, and provide a
pointer for developers to receive help if they need it.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 28a31c5..afeaf62 100644 (file)
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -196,3 +196,21 @@ Why:       Board specific code doesn't build anymore since ~2.6.0 and no
        users have complained indicating there is no more need for these
        boards.  This should really be considered a last call.
 Who:   Ralf Baechle <ralf@linux-mips.org>
+
+---------------------------
+
+What:  USB driver API moves to EXPORT_SYMBOL_GPL
+When:  Febuary 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>
+
+---------------------------

diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index dce9d98..c196f38 100644 (file)
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -378,7 +378,7 @@ const struct usb_device_id *usb_match_id(struct usb_interface *interface,
 
        return NULL;
 }
-EXPORT_SYMBOL(usb_match_id);
+EXPORT_SYMBOL_GPL_FUTURE(usb_match_id);
 
 int usb_device_match(struct device *dev, struct device_driver *drv)
 {
@@ -446,7 +446,7 @@ int usb_register_driver(struct usb_driver *new_driver, struct module *owner)
 
        return retval;
 }
-EXPORT_SYMBOL(usb_register_driver);
+EXPORT_SYMBOL_GPL_FUTURE(usb_register_driver);
 
 /**
  * usb_deregister - unregister a USB driver
@@ -469,4 +469,4 @@ void usb_deregister(struct usb_driver *driver)
 
        usbfs_update_special();
 }
-EXPORT_SYMBOL(usb_deregister);
+EXPORT_SYMBOL_GPL_FUTURE(usb_deregister);