netdev - RE: [RFC PATCH 3/3] usbnet: support runtime PM triggered by link change

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Date:	Mon, 17 Sep 2012 10:02:27 +0100
From:	"David Laight" <David.Laight@...LAB.COM>
To:	"Oliver Neukum" <oneukum@...e.de>,
	"Ming Lei" <ming.lei@...onical.com>
Cc:	"David S. Miller" <davem@...emloft.net>,
	"Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
	"Fink Dmitry" <finik@...com>, "Rafael Wysocki" <rjw@...k.pl>,
	"Alan Stern" <stern@...land.harvard.edu>, <netdev@...r.kernel.org>,
	<linux-usb@...r.kernel.org>
Subject: RE: [RFC PATCH 3/3] usbnet: support runtime PM triggered by link change

> > +void usbnet_link_updated(struct usbnet *dev)
> > +{
> > +	complete(&dev->link_update_completion);
> > +}
> > +EXPORT_SYMBOL_GPL(usbnet_link_updated);
> 
> Isn't that a bit too trivial to get the _GPL version?

Particularly if the usb infrastructure (that I presume this
is part of) might be reasonably usable by non-gpl drivers.

A few years back the function to release a reference on
the kernel 'pid' structure was added as GPL - making
it impossible for non-GPL to hold the reference.

	David
 


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