linux-kernel - Re: [PATCH 0/5] intel_pstate updates for v3.14-rcX

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Message-ID: <1862084.mmnlZ4yS6m@vostro.rjw.lan>
Date:	Wed, 19 Feb 2014 01:43:44 +0100
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	Dirk Brandewie <dirk.brandewie@...il.com>
Cc:	"dirk.j.brandewie@...el.com" <dirk.j.brandewie@...el.com>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/5] intel_pstate updates for v3.14-rcX

On Tuesday, February 18, 2014 04:24:02 PM Dirk Brandewie wrote:
> On Tuesday, February 18, 2014, Rafael J. Wysocki <rjw@...ysocki.net> wrote:
> 
> > On Tuesday, February 18, 2014 03:53:48 PM Dirk Brandewie wrote:
> > > On 02/18/2014 02:27 PM, Rafael J. Wysocki wrote:
> > > > On Tuesday, February 18, 2014 12:29:54 PM Dirk Brandewie wrote:
> > > >> Hi Rafael,
> > > >
> > > > Hi,
> > > >
> > > >> On 02/12/2014 10:01 AM, dirk.brandewie@...il.com <javascript:;>wrote:
> > > >>> From: Dirk Brandewie <dirk.j.brandewie@...el.com <javascript:;>>
> > > >>>
> > > >>> Based on v3.14-rc2
> > > >>>
> > > >>> Patch 1 removes energy reporting the patch from Maurizio Lambardi
> > > >>>    intel_pstate: fix race condition in intel_pstate_init() can be
> > dropped.
> > > >>>
> > > >>
> > > >> Any reason why patches 2-5 did not make rc3 other than timing?
> > > >>
> > > >> Patches 2/3 can easily wait for v3.15.x
> > > >>
> > > >> Patches 4/5 fix bugs that are in the wild.
> > > >
> > > > I asked you about them, but you didn't reply:
> > > >
> > > > http://marc.info/?l=linux-pm&m=139225158531023&w=4
> > > >
> > > > Again, do patches [4-5/5] depend on [2-3/5]?
> > > >
> > > > If not, I can queue them up for -rc4.
> > >
> > > All the patches are independent of one another.
> > >
> > > Patch 2 is straight cleanup no functional change but reduces the memory
> > > footprint slightly.
> > >
> > > Patch 3 is a bug that will only be seen when the PID is reset at init
> > time
> > > or when a change is made to PID params via debugfs.  The problem will
> > only
> > > exist for one sample time since it is setting last_err in the PID.
> > >
> > > Patch 4-5 are bugs found during Baytrail-T testing
> >
> > Are there any pointers to bug reports that may be included in the
> > changelogs
> > of these?
> 
> 
> No.  I got the reports via email.  I could probably get the reporters to
> file bugzillas.

It would be good to add information about what machines are affected
and what the user-visible problems are to the changelogs for future
reference.

And do we want these two patches in -stable?  If so, what -stable series should
they go into?

Rafael

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