linux-kernel - Re: [PATCH 06/20] hwmon/via-cputemp: Convert to hotplug state machine

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Date:   Fri, 9 Dec 2016 10:17:37 -0800
From:   Guenter Roeck <linux@...ck-us.net>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        linux-kernel@...r.kernel.org, linux-hwmon@...r.kernel.org,
        Jean Delvare <jdelvare@...e.com>, rt@...uxtronix.de,
        Sebastian Andrzej Siewior <bigeasy@...akpoint.cc>,
        rt@...utronix.de
Subject: Re: [PATCH 06/20] hwmon/via-cputemp: Convert to hotplug state machine

On Fri, Dec 09, 2016 at 12:53:30PM +0100, Thomas Gleixner wrote:
> Guenter,
> 
> On Thu, 17 Nov 2016, Sebastian Andrzej Siewior wrote:
> 
> > Install the callbacks via the state machine and let the core invoke the
> > callbacks on the already online CPUs. When the hotplug state is
> > unregistered the cleanup function is called for each cpu. So both cpu loops
> > in init() and exit() are not longer required.
> 
> Can we please get those two VIA patches merged for 4.10? They are blocking
> the final removal of the CPU hotplug notifier crap.
> 
> The first one which removes that loop is really harmless as there are no
> multisocket VIAs. Heterogenous cores in a single die would be surprising
> and the loop check would be the least of our worries in that case. IOW, it
> would never get so far...
> 
I had queued that one already.

> The one converting the notifier is not changing any of the functionality.
> 
> I cannot test on all VIA SMP variants either, but at least on the one I
> have access to it just works.
> 
I queued up the second patch as well. Hope it does not blow up on us.
Sorry, I got a bit nervous after the coretemp experience.

Thanks,
Guenter