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





On 20/05/2019 14:48, Oleksandr wrote:

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?

The current implementation looks correct. So the commit message needs to be 
updated.

Cheers,

--
Julien Grall

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