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SubjectRe: [PATCH 0/1] refcount: restore kref_get and kref_put to non-GPL status

On 03/08/2017 01:48 AM, Greg Kroah-Hartman wrote:
> On Wed, Mar 08, 2017 at 01:25:48AM -0800, wrote:
>> From: John Hubbard <>
>> Hi,
>> Say, I'm 99% sure that this was just an oversight, so
>> I'm sticking my neck out here and floating a patch to
>> Put Things Back. I'm hoping that there is not some
>> firm reason to GPL-protect the basic kref_get and
>> kref_put routines, because when designing some
>> recent new (open-source, yay!) device drivers, we relied
>> on this being available, even for MIT-licensed code.
> MIT-licensed code should be just fine with GPL symbols, just use the
> correct MODULE_LICENSE() setting and all is good.

Actually, we're still using this license string:


which I understand does *not* grant access to GPL symbols. So I guess we'd have to
switch over to "MIT/GPL", if I understand correctly, in order to be all correct here.

> As all of the previous kref functions were in a GPL-only header file,
> and included directly that way, they were already GPL-only symbols, so
> there really was no change here except now the linker checks them. If
> you have questions about using inline GPL-only functions from a .h file,
> in a non-GPL codebase, please consult your corporate lawyer to get
> clarification.

As much as I do enjoy chatting with those guys, I think I'll pass this time. :)

John Hubbard

> thanks,
> greg k-h

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