Re: [Xen-devel] [PATCH 02/11] evtchn: refactor low-level event channel port ops

[David Vrabel <david.vrabel@xxxxxxxxxx>]

On 15/09/13 14:11, Stefano Stabellini wrote:
> On Sun, 15 Sep 2013, Stefano Stabellini wrote:
>> On Fri, 13 Sep 2013, David Vrabel wrote:
>>> diff --git a/xen/common/event_2l.c b/xen/common/event_2l.c
>>> new file mode 100644
>>> index 0000000..18c0c6e
>>> --- /dev/null
>>> +++ b/xen/common/event_2l.c
>>> @@ -0,0 +1,99 @@
>>> +/*
>>> + * Event channel port operations.
>>> + *
>>> + * Copyright (c) 2003-2006, K A Fraser.
>>> + * 
>>> + * This source code is licensed under the GNU General Public License,
>>> + * Version 2 or later.  See the file COPYING for more details.
>>> + */
>>
>> Does it have to be GPLv2 only? Can it be dual-licensed BSD to make it
>> easier for other operating systems to support the new interface?
>>
> 
> I meant to quote the new Linux files:
> 
> drivers/xen/events/events_internal.h
> drivers/xen/events/n-level.c

These will have to stay as GPLv2 as the are derived from the original
events.c which does not have any license stated (so we must assume GPLv2).

> drivers/xen/events/fifo.c

I will make this one dual GPLv2 or later and 2-clause BSD.  Although, I
do think that any implementer would be better off basing their work off
the documentation rather a Linux-centric implementation.

David

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