Re: [PATCH v4 04/18] powerpc/pseries: add of_node_put() in dlpar_detach_node()

[Rob Herring]

On Thu, Oct 18, 2018 at 2:09 PM Frank Rowand <frowand.list@xxxxxxxxx> wrote:
>
> On 10/18/18 10:09, Rob Herring wrote:
> > On Mon, Oct 15, 2018 at 07:37:24PM -0700, frowand.list@xxxxxxxxx wrote:
> >> From: Frank Rowand <frank.rowand@xxxxxxxx>
> >>
> >> "of: overlay: add missing of_node_get() in __of_attach_node_sysfs"
> >> added a missing of_node_get() to __of_attach_node_sysfs().  This
> >> results in a refcount imbalance for nodes attached with
> >> dlpar_attach_node().  The calling sequence from dlpar_attach_node()
> >> to __of_attach_node_sysfs() is:
> >>
> >>    dlpar_attach_node()
> >>       of_attach_node()
> >>          __of_attach_node_sysfs()
> >
> > IIRC, there's a long standing item in the todo (Grant's) to convert the
> > open coded dlpar code. Maybe you want to do that first?
>
> I'd like to avoid extra delays to getting the current (with necesary
> fixes) series accepted because the series is rather intrusive and
> could have conflicts with other patches.
>
> I'm also worried that I don't have access to any of the systems that
> use the dynamic overlay code, and I don't have any way to test the
> changes.

Mainly I was thinking you are asking them to test changes now, so I
was thinking better to do that once than twice.

Either way is fine though.

> Can we encourage the users of this code to convert the open coded
> dlpar code?

That would be ideal...

Rob