linux-kernel - Re: [PATCH v2] cpufreq: intel_pstate: Fix compilation for !CONFIG

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Message-ID: <af0dac7535332ecedeab9f04654fbb1d5a21e1a2.camel@linux.intel.com>
Date:   Tue, 23 Oct 2018 14:52:12 -0700
From:   Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
To:     Dominik Brodowski <linux@...inikbrodowski.net>
Cc:     linux-pm@...r.kernel.org, lenb@...nel.org, rjw@...ysocki.net,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] cpufreq: intel_pstate: Fix compilation for
 !CONFIG_ACPI

On Tue, 2018-10-23 at 21:54 +0200, Dominik Brodowski wrote:
> While at it, add a few comments which config options #ifdef
> and #else statements refer to.
> 
> Fixes: 86d333a8cc7f ("cpufreq: intel_pstate: Add base_frequency
> attribute")
> Cc: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
> Cc: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> Signed-off-by: Dominik Brodowski <linux@...inikbrodowski.net>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>

> 
> diff --git a/drivers/cpufreq/intel_pstate.c
> b/drivers/cpufreq/intel_pstate.c
> index 49c0abf2d48f..9578312e43f2 100644
> --- a/drivers/cpufreq/intel_pstate.c
> +++ b/drivers/cpufreq/intel_pstate.c
> @@ -386,16 +386,11 @@ static int intel_pstate_get_cppc_guranteed(int
> cpu)
>  	return cppc_perf.guaranteed_perf;
>  }
>  
> -#else
> +#else /* CONFIG_ACPI_CPPC_LIB */
>  static void intel_pstate_set_itmt_prio(int cpu)
>  {
>  }
> -
> -static int intel_pstate_get_cppc_guranteed(int cpu)
> -{
> -	return -ENOTSUPP;
> -}
> -#endif
> +#endif /* CONFIG_ACPI_CPPC_LIB */
>  
>  static void intel_pstate_init_acpi_perf_limits(struct cpufreq_policy
> *policy)
>  {
> @@ -477,7 +472,7 @@ static void intel_pstate_exit_perf_limits(struct
> cpufreq_policy *policy)
>  
>  	acpi_processor_unregister_performance(policy->cpu);
>  }
> -#else
> +#else /* CONFIG_ACPI */
>  static inline void intel_pstate_init_acpi_perf_limits(struct
> cpufreq_policy *policy)
>  {
>  }
> @@ -490,7 +485,14 @@ static inline bool
> intel_pstate_acpi_pm_profile_server(void)
>  {
>  	return false;
>  }
> -#endif
> +#endif /* CONFIG_ACPI */
> +
> +#ifndef CONFIG_ACPI_CPPC_LIB
> +static int intel_pstate_get_cppc_guranteed(int cpu)
> +{
> +	return -ENOTSUPP;
> +}
> +#endif /* CONFIG_ACPI_CPPC_LIB */
>  
>  static inline void update_turbo_state(void)
>  {