Re: [PATCH v4 2/2] of: Add unit tests for applying overlays

[Rob Herring]

On Tue, Apr 25, 2017 at 7:09 PM,  <frowand.list@xxxxxxxxx> wrote:
> From: Frank Rowand <frank.rowand@xxxxxxxx>
>
> Existing overlay unit tests examine individual pieces of the overlay
> code.  The new tests target the entire process of applying an overlay.
>
> Signed-off-by: Frank Rowand <frank.rowand@xxxxxxxx>
> ---

[...]

> @@ -1261,6 +1263,8 @@ void __init unflatten_device_tree(void)
>
>         /* Get pointer to "/chosen" and "/aliases" nodes for use everywhere */
>         of_alias_scan(early_init_dt_alloc_memory_arch);
> +
> +       unittest_unflatten_overlay_base();

This breaks on systems that don't boot with FDT and call
unflatten_device_tree, namely x86 and UML (UML needs a few hacks to
work) which was a feature of the unittest. Considering applying
overlays on x86 is something we'll want to support, the unittest
should support that case.

Rob