Re: linux-next: build failure after merge of the driver-core tree

From: Greg KH
Date: Wed Dec 14 2011 - 14:25:09 EST


On Wed, Dec 14, 2011 at 09:01:44AM -0800, Greg KH wrote:
> On Wed, Dec 14, 2011 at 04:13:05PM +0100, Peter Zijlstra wrote:
> > On Wed, 2011-12-14 at 07:03 -0800, Greg KH wrote:
> >
> > > I'll remove the use of kfree in the WARN_ON(), which should solve this
> > > problem.
> >
> > The alternative is that we introduce something like CONFIG_KREF_DEBUG
> > and out-of-line the functions in that case while also adding more debug
> > checks. Alexey recently proposed a refcnt.h thing that almost does what
> > kref does but has different debug checks.
>
> That might be nice to have, but the kfree check was there to catch
> people who were trying to be "tricky", and they will not be running with
> that debug option enabled.
>
> I'll just remove it, and rely on the documentation and public
> humiliation instead of kernel warnings to try to enforce this rule.
> It's worked pretty good so far with the kobject rules :)

Here's the patch I just applied to the driver-core-next tree, which
should resolve this build problem.