linux-kernel - Re: [PATCH 211/228] cpufreq: tegra: remove calls to cpufreq_notify_transition()

Open Source and information security mailing list archives

Date:	Sat, 14 Sep 2013 09:41:51 +0200
From:	Vladimir Murzin <murzin.v@...il.com>
To:	Viresh Kumar <viresh.kumar@...aro.org>
Cc:	Stephen Warren <swarren@...dotorg.org>,
	Lists linaro-kernel <linaro-kernel@...ts.linaro.org>,
	Stephen Warren <swarren@...dia.com>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	Patch Tracking <patches@...aro.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"cpufreq@...r.kernel.org" <cpufreq@...r.kernel.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 211/228] cpufreq: tegra: remove calls to
 cpufreq_notify_transition()

On Sat, Sep 14, 2013 at 09:39:31AM +0530, Viresh Kumar wrote:
> On 14 September 2013 04:22, Stephen Warren <swarren@...dotorg.org> wrote:
> > I wonder if this series is bisectable? Perhaps I should just go and read
> > the rest of the series, but I presume there's a patch somewhere else
> > that adds those two cpufreq_notify_transition() to the cpufreq core.
> > Either that happens before this patch (in which case listeners will get
> > two notifications each time; perhaps that is safe?), or after this patch
> > (in which case with just this patch applied, no notifications will be
> > sent until a later patch!
> 
> Hmm.. Good Catch..
> 
> So, yes git bisect would be compilable but not runnable.. As we are
> already serialized notifications and so two PRE notifications will
> generate a crash..
> 
> But I don't want to get all that in a single patch as that would be:
> 
>  40 files changed, 192 insertions(+), 623 deletions(-)
> 
> And that would be hard to review it..
> 
> Any suggestions?
> 

It reminds me time of removing CONFIG_HOTPLUG and following __dev* attributes.
At least stats for 48c68c4 "Drivers: video: remove __dev* attributes" is:

135 files changed, 1017 insertions(+), 1129 deletions(-)

Maybe coccinelle script, which maintainers could run it on their trees, would
help?

Vladimir

> > Aside from that, all the Tegra-specific patches in this series,
> > Acked-by: Stephen Warren <swarren@...dia.com>
> 
> Thanks..
> 
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