linux-kernel - Re: [PATCH 4.2-rc5] workqueue: Make flush_workqueue() available again to non GPL modules

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Date:	Thu, 03 Sep 2015 11:20:54 +0200
From:	Hans-Peter Jansen <hpj@...la.net>
To:	Tejun Heo <tj@...nel.org>
Cc:	tim.gardner@...onical.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4.2-rc5] workqueue: Make flush_workqueue() available again to non GPL modules

On Dienstag, 4. August 2015 14:05:20 Tejun Heo wrote:
> On Tue, Aug 04, 2015 at 11:26:04AM -0600, tim.gardner@...onical.com wrote:
> > From: Tim Gardner <tim.gardner@...onical.com>
> > 
> > Commit 37b1ef31a568fc02e53587620226e5f3c66454c8 ("workqueue: move
> > flush_scheduled_work() to workqueue.h") moved the exported non GPL
> > flush_scheduled_work() from a function to an inline wrapper.
> > Unfortunately, it directly calls flush_workqueue() which is a GPL
> > function.
> > This has the effect of changing the licensing requirement for this
> > function
> > and makes it unavailable to non GPL modules.
> > 
> > See commit ad7b1f841f8a54c6d61ff181451f55b68175e15a ("workqueue: Make
> > schedule_work() available again to non GPL modules") for precedent.
> > 
> > Cc: Tejun Heo <tj@...nel.org>
> > Signed-off-by: Tim Gardner <tim.gardner@...onical.com>
> 
> Applied to wq/for-4.3.
> 
> Thanks.

Tejun, mind CCing stable in this regard? 

As things stand right now, it's activily deferring 4.2 rollout for (evil, 
sure) nvidia users like me. 

Thanks,
Pete
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