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Re: [PATCH V3 03/13] cpufreq: governor: New sysfs show/store callbacks for governor tunables

From "Rafael J. Wysocki" <rjw@rjwysocki.net>
Newsgroups linux.kernel
Subject Re: [PATCH V3 03/13] cpufreq: governor: New sysfs show/store callbacks for governor tunables
Date 2016-02-09 21:20 +0100
Message-ID <r0mVt-wW-23@gated-at.bofh.it> (permalink)
References <qZSul-4Ei-3@gated-at.bofh.it> <r01Hk-2vO-9@gated-at.bofh.it> <r07a1-6x5-1@gated-at.bofh.it>
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On Tuesday, February 09, 2016 08:51:26 AM Viresh Kumar wrote:
> On 08-02-16, 22:36, Rafael J. Wysocki wrote:
> > On Mon, Feb 8, 2016 at 12:39 PM, Viresh Kumar <viresh.kumar@linaro.org> wrote:
> > > +       ret = kobject_init_and_add(&dbs_data->kobj, &gov->kobj_type,
> > > +                                  get_governor_parent_kobj(policy),
> > > +                                  gov->kobj_name);
> > 
> > Besides, you forgot about the format argument for kobject_init_and_add().
> 
> What about that? Why is it required here ? We don't have to modify the
> gov->gov.name string at all, and that string can be used here without adding any
> more format arguments.

But that's because the governor name is a static string and we can safely pass
it as a format (because we know that it doesn't contain any output field specifiers
in particular).

So either there should be a comment to that effect in the code, or the format
argument should be present.

Thanks,
Rafael

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Re: [PATCH V3 03/13] cpufreq: governor: New sysfs show/store callbacks for governor tunables "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-02-09 21:20 +0100

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