Re: [PATCH v3 09/12] of: property: Simplify of_link_to_phandle()

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On Tue, Feb 07, 2023 at 09:57:14PM +0100, Geert Uytterhoeven wrote:
> Hi Saravana,
> 
> On Tue, Feb 7, 2023 at 2:42 AM Saravana Kannan <saravanak@xxxxxxxxxx> wrote:
> > The driver core now:
> > - Has the parent device of a supplier pick up the consumers if the
> >   supplier never has a device created for it.
> > - Ignores a supplier if the supplier has no parent device and will never
> >   be probed by a driver
> >
> > And already prevents creating a device link with the consumer as a
> > supplier of a parent.
> >
> > So, we no longer need to find the "compatible" node of the supplier or
> > do any other checks in of_link_to_phandle(). We simply need to make sure
> > that the supplier is available in DT.
> >
> > Signed-off-by: Saravana Kannan <saravanak@xxxxxxxxxx>
> 
> Thanks for your patch!
> 
> This patch introduces a regression when dynamically loading DT overlays.
> Unfortunately this happens when using the out-of-tree OF configfs,
> which is not supported upstream.  Still, there may be (obscure)
> in-tree users.

As we can't do anything about out-of-tree code, why does this matter?

thanks,

greg k-h



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