linux-kernel - Re: [PATCH] cpufreq: integrator: Use set_cpus_allowed

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Date:	Mon, 4 Aug 2014 12:52:07 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	Himangi Saraogi <himangi774@...il.com>
Cc:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Julia Lawall <julia.lawall@...6.fr>
Subject: Re: [PATCH] cpufreq: integrator: Use set_cpus_allowed_ptr

On 3 August 2014 15:45, Himangi Saraogi <himangi774@...il.com> wrote:
> Several years ago there was an effort to convert all uses of
> set_cpus_allowed to use set_cpus_allowed_ptr with the goal of eventually
> removing the current definition of set_cpus_allowed and renaming
> set_cpus_allowed_ptr as set_cpus_allowed
> (https://lkml.org/lkml/2010/3/26/59). This is another step in this
> direction.
>
> The Coccinelle semantic patch that makes this change is as follows:
>
> // <smpl>
> @@
> expression E1,E2;
> @@
>
> - set_cpus_allowed(E1, cpumask_of_cpu(E2))
> + set_cpus_allowed_ptr(E1, cpumask_of(E2))
>
> @@
> expression E;
> identifier I;
> @@
>
> - set_cpus_allowed(E, I)
> + set_cpus_allowed_ptr(E, &I)
> // </smpl>
>
> Signed-off-by: Himangi Saraogi <himangi774@...il.com>
> Acked-by: Julia Lawall <julia.lawall@...6.fr>
> ---
>  drivers/cpufreq/integrator-cpufreq.c | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/cpufreq/integrator-cpufreq.c b/drivers/cpufreq/integrator-cpufreq.c
> index e5122f1..c132052 100644
> --- a/drivers/cpufreq/integrator-cpufreq.c
> +++ b/drivers/cpufreq/integrator-cpufreq.c
> @@ -92,7 +92,7 @@ static int integrator_set_target(struct cpufreq_policy *policy,
>          * Bind to the specified CPU.  When this call returns,
>          * we should be running on the right CPU.
>          */
> -       set_cpus_allowed(current, cpumask_of_cpu(cpu));
> +       set_cpus_allowed_ptr(current, cpumask_of(cpu));
>         BUG_ON(cpu != smp_processor_id());
>
>         /* get current setting */
> @@ -118,7 +118,7 @@ static int integrator_set_target(struct cpufreq_policy *policy,
>         freqs.new = icst_hz(&cclk_params, vco) / 1000;
>
>         if (freqs.old == freqs.new) {
> -               set_cpus_allowed(current, cpus_allowed);
> +               set_cpus_allowed_ptr(current, &cpus_allowed);
>                 return 0;
>         }
>
> @@ -141,7 +141,7 @@ static int integrator_set_target(struct cpufreq_policy *policy,
>         /*
>          * Restore the CPUs allowed mask.
>          */
> -       set_cpus_allowed(current, cpus_allowed);
> +       set_cpus_allowed_ptr(current, &cpus_allowed);
>
>         cpufreq_freq_transition_end(policy, &freqs, 0);
>
> @@ -157,7 +157,7 @@ static unsigned int integrator_get(unsigned int cpu)
>
>         cpus_allowed = current->cpus_allowed;
>
> -       set_cpus_allowed(current, cpumask_of_cpu(cpu));
> +       set_cpus_allowed_ptr(current, cpumask_of(cpu));
>         BUG_ON(cpu != smp_processor_id());
>
>         /* detect memory etc. */
> @@ -173,7 +173,7 @@ static unsigned int integrator_get(unsigned int cpu)
>
>         current_freq = icst_hz(&cclk_params, vco) / 1000; /* current freq */
>
> -       set_cpus_allowed(current, cpus_allowed);
> +       set_cpus_allowed_ptr(current, &cpus_allowed);
>
>         return current_freq;
>  }

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