Re: [PATCH] intel_pstate: Simplify conditional in intel_pstate_set_policy()

From: Srinivas Pandruvada
Date: Thu May 12 2016 - 20:36:37 EST


On Thu, 2016-05-12 at 00:46 +0200, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
>
> One of the if () statements in intel_pstate_set_policy() causes
> another if () to be evaluated if the condition is true and it
> doesn't do anything else, so merge the two if () statements into
> one.
>
> No functional changes.
>
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
  Acked-by: Srinivas Pandruvada <srinivas.pandruvada@xxxxxxxxxxxxxxx>

> ---
> Âdrivers/cpufreq/intel_pstate.c |ÂÂÂ11 +++++------
> Â1 file changed, 5 insertions(+), 6 deletions(-)
>
> Index: linux-pm/drivers/cpufreq/intel_pstate.c
> ===================================================================
> --- linux-pm.orig/drivers/cpufreq/intel_pstate.c
> +++ linux-pm/drivers/cpufreq/intel_pstate.c
> @@ -1449,12 +1449,11 @@ static int intel_pstate_set_policy(struc
> Â intel_pstate_clear_update_util_hook(policy->cpu);
> Â
> Â cpu = all_cpu_data[0];
> - if (cpu->pstate.max_pstate_physical > cpu-
> >pstate.max_pstate) {
> - if (policy->max < policy->cpuinfo.max_freq &&
> - ÂÂÂÂpolicy->max > cpu->pstate.max_pstate * cpu-
> >pstate.scaling) {
> - pr_debug("policy->max > max non turbo
> frequency\n");
> - policy->max = policy->cpuinfo.max_freq;
> - }
> + if (cpu->pstate.max_pstate_physical > cpu->pstate.max_pstate
> &&
> + ÂÂÂÂpolicy->max < policy->cpuinfo.max_freq &&
> + ÂÂÂÂpolicy->max > cpu->pstate.max_pstate * cpu-
> >pstate.scaling) {
> + pr_debug("policy->max > max non turbo frequency\n");
> + policy->max = policy->cpuinfo.max_freq;
> Â }
> Â
> Â if (policy->policy == CPUFREQ_POLICY_PERFORMANCE) {
>
> --
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