Re: [Xen-devel] [RFC PATCH 1/2] xen/device-tree: Add dt_count_phandle_with_args helper

[Oleksandr <olekstysh@xxxxxxxxx>]

On 20.05.19 14:03, Julien Grall wrote:
> Hi,
Hi, Julien


> On 02/05/2019 15:13, Oleksandr Tyshchenko wrote:
> > From: Oleksandr Tyshchenko <oleksandr_tyshchenko@xxxxxxxx>
> >
> > Port Linux helper of_count_phandle_with_args for counting
> > number of phandles in a property.
> Linux 5.1 uses a completely different implementation for 
> of_count_phandle_with_args. So which version of Linux did you port from?
This patch is exactly the same one [1], I did more than 2 years ago in 
the context of non-shared IOMMU patch series. Likely, I was based on v4.4.
Sorry for the confusing description.


You are right, current implementation of_count_phandle_with_args is 
completely different, and I am afraid, is not easily back-portable to Xen.
If the implementation "v4.4" looks correct and fits in current Xen 
codebase, I can recollect an exact version and update the patch 
description.
What do you think?


[1] https://patchwork.kernel.org/patch/9862557/

> Cheers,
--
Regards,

Oleksandr Tyshchenko


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