From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: "Rafael J. Wysocki (Intel)" <rafael@kernel.org>
Cc: Jori Koolstra <jkoolstra@xs4all.nl>,
Daniel Lezcano <daniel.lezcano@kernel.org>,
Zhang Rui <rui.zhang@intel.com>,
Lukasz Luba <lukasz.luba@arm.com>,
"open list:THERMAL" <linux-pm@vger.kernel.org>,
open list <linux-kernel@vger.kernel.org>,
driver-core@lists.linux.dev
Subject: Re: [PATCH] thermal: change thermal_class to a const struct
Date: Mon, 24 Aug 2026 18:58:18 +0200 [thread overview]
Message-ID: <2026082446-lagging-ominous-0a35@gregkh> (raw)
In-Reply-To: <2026082411-flask-rewire-434f@gregkh>
On Mon, Aug 24, 2026 at 06:56:05PM +0200, Greg Kroah-Hartman wrote:
> On Mon, Aug 24, 2026 at 06:09:33PM +0200, Rafael J. Wysocki (Intel) wrote:
> > On Tue, Aug 11, 2026 at 8:17 AM Jori Koolstra <jkoolstra@xs4all.nl> wrote:
> > >
> > > The class_create() call has been deprecated in favor of class_register()
> > > as the driver core now allows for a struct class to be in read-only
> > > memory. Change thermal_class to be a const struct class and drop the
> > > class_create() call.
> >
> > This has been deliberately changed the other way around not too long
> > ago, in commit
> >
> > 34f54003643e thermal/core: Allocate the thermal class dynamically
> >
> > and it was then argued that it would be better to allocate the class
> > dynamically.
> >
> > You seem to have a differing opinion.
> >
> > Is there any plan to remove class_create() from the kernel? If there
> > isn't, I'd rather stop this back-and-forth dance and leave the code
> > as-is.
>
> Yes, class_create() is going away. I didn't notice commit 34f54003643e,
> but that's the wrong thing to do here. We should just revert that
> instead.
And we are down to only a very few callers of that function. I'll sweep
the tree again after -rc1 is out, apply any pending patches, and drop
the function entirely then.
thanks,
greg k-h
next prev parent reply other threads:[~2026-08-24 16:58 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-11 6:15 Jori Koolstra
2026-08-24 16:09 ` Rafael J. Wysocki (Intel)
2026-08-24 16:56 ` Greg Kroah-Hartman
2026-08-24 16:58 ` Greg Kroah-Hartman [this message]
2026-08-24 17:04 ` Rafael J. Wysocki (Intel)
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