Re: [PATCH 0/4] platform/x86: wmi: Prepare for future changes

[Armin Wolf]

Am 10.11.25 um 12:00 schrieb Ilpo Järvinen:

> On Wed, 5 Nov 2025, Armin Wolf wrote:
>
> > Am 04.11.25 um 21:52 schrieb Mario Limonciello:
> >
> > > On 11/4/25 2:45 PM, Armin Wolf wrote:
> > > > After over a year of reverse engineering, i am finally ready to
> > > > introduce support for WMI-ACPI marshalling inside the WMI driver core.
> > > marshaling> Since the resulting patch series is quite large, i am planning
> > > to
> > > > submit the necessary patches as three separate patch series.
> > > >
> > > > This is supposed to be the first of the three patch series. Its main
> > > > purpose is to prepare the WMI driver core for the upcoming changes.
> > > > The first patch fixes an issue inside the nls utf16 to utf8 conversion
> > > > code, while the next two patches fix some minor issues inside the WMI
> > > > driver core itself. The last patch finally moves the code of the WMI
> > > > driver core into a separate repository to allow for future additions
> > > > without cluttering the main directory.
> > > One question I have here on the patch to move things.
> > >
> > > Since Windows on ARM (WoA) laptops are a thing - is this still actually x86
> > > specific?  I am wondering if this should be moving to a different subsystem
> > > altogether like ACPI; especially now with this impending other large patch
> > > series you have on your way.
> > I know of a few WoA laptops that contain ACPI-WMI devices, meaning this driver
> > is indeed not x86-specific.
> > However i need to make some changes to the WMI driver core (and actually tests
> > it on a AArch64 VM) first
> > before moving it out of drivers/platform/x86.
> >
> > Once i am actually ready for this i would prefer to move the whole stuff to
> > drivers/platform, as drivers/acpi
> > IMHO is better suited for core ACPI drivers.
> So no need to put it under drivers/platform/x86/wmi/ then at all. It
> can move directly to drivers/platform/wmi/ and you work there towards
> making it non-x86-specific.

OK, i will send the v2 revision of this series soon.

Thanks,
Armin Wolf