From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: "Rafael J. Wysocki (Intel)" <rafael@kernel.org>
Cc: Danilo Krummrich <dakr@kernel.org>,
Linux ACPI <linux-acpi@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Linux Driver Core Development <driver-core@lists.linux.dev>
Subject: Re: [PATCH v2] driver core/ACPI: Introduce companion_bus_register()
Date: Wed, 16 Sep 2026 19:52:54 +0100 [thread overview]
Message-ID: <2026091644-shiftless-armchair-a429@gregkh> (raw)
In-Reply-To: <CAJZ5v0geju99B56CqAQjKwZcwg7mqXPUxx_a=kQ1KpaKpQztuw@mail.gmail.com>
On Wed, Sep 16, 2026 at 08:45:50PM +0200, Rafael J. Wysocki (Intel) wrote:
> On Wed, Sep 9, 2026 at 6:41 PM Rafael J. Wysocki <rafael@kernel.org> wrote:
> >
> > From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> >
> > The ACPI bus type does not allow drivers to be registered, so the sysfs
> > attributes related to drivers created for it and its devices are
> > useless, and its drivers/ directory is always empty. All of that is
> > confusing and wasteful.
> >
> > To allow skipping the creation of those sysfs attributes, introduce a
> > "companion" bus type concept and add a special registration function for
> > registering "companion" bus types, companion_bus_register().
> >
> > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
>
> It's been a while since this was posted, so any feedback would be appreciated.
>
> In the absence thereof, I'll trust Sashiko that there are no issues
> with it and pick it up.
Looks sane:
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
next prev parent reply other threads:[~2026-09-16 18:54 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-09 16:41 [PATCH v2] driver core/ACPI: Introduce companion_bus_register() Rafael J. Wysocki
2026-09-16 18:45 ` Rafael J. Wysocki (Intel)
2026-09-16 18:52 ` Greg Kroah-Hartman [this message]
2026-09-16 18:51 ` Danilo Krummrich
2026-09-23 17:05 ` Michael Kelley
2026-09-23 17:32 ` Rafael J. Wysocki (Intel)
2026-09-23 18:31 ` Rafael J. Wysocki (Intel)
2026-09-23 18:50 ` Rafael J. Wysocki (Intel)
2026-09-23 19:11 ` Rafael J. Wysocki (Intel)
2026-09-24 18:23 ` Michael Kelley
2026-09-24 18:44 ` Rafael J. Wysocki (Intel)
2026-09-24 21:47 ` Michael Kelley
2026-09-25 9:08 ` Rafael J. Wysocki (Intel)
2026-09-29 3:51 ` Michael Kelley
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