linux-kernel - Re: [PATCH] cpufreq: Detect spurious invocations of update_policy

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Message-ID: <CAKohponfLQnPhpLwkOBQ--AXnmD+bvZ85iKQBts1c1wEZmBZuQ@mail.gmail.com>
Date:	Thu, 12 Sep 2013 19:03:47 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	Stephen Warren <swarren@...dotorg.org>,
	"cpufreq@...r.kernel.org" <cpufreq@...r.kernel.org>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] cpufreq: Detect spurious invocations of update_policy_cpu()

On 12 September 2013 17:29, Srivatsa S. Bhat
<srivatsa.bhat@...ux.vnet.ibm.com> wrote:
> The function update_policy_cpu() is expected to be called when the policy->cpu
> of a cpufreq policy is to be changed: ie., the new CPU nominated to become the
> policy->cpu is different from the old one.
>
> Print a warning if it is invoked with new_cpu == old_cpu, since such an
> invocation might hint at a faulty logic in the caller.
>
> Suggested-by: Viresh Kumar <viresh.kumar@...aro.org>
> Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@...ux.vnet.ibm.com>
> ---
>
>  drivers/cpufreq/cpufreq.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Acked-by: Viresh Kumar <viresh.kumar@...aro.org>
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