linux-kernel - Re: [PATCH v2 04/10] arm: wire cpufreq input data for frequency-invariant accounting up to the arch

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Message-ID: <de625d21-6e2c-0a3f-85be-bff70d24ea61@arm.com>
Date:   Mon, 10 Jul 2017 16:13:50 +0100
From:   Dietmar Eggemann <dietmar.eggemann@....com>
To:     Viresh Kumar <viresh.kumar@...aro.org>
Cc:     linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        linux@....linux.org.uk,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Russell King <rmk+kernel@...linux.org.uk>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Juri Lelli <juri.lelli@....com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Morten Rasmussen <morten.rasmussen@....com>,
        "Rafael J . Wysocki" <rjw@...ysocki.net>
Subject: Re: [PATCH v2 04/10] arm: wire cpufreq input data for
 frequency-invariant accounting up to the arch

On 06/07/17 11:42, Viresh Kumar wrote:
> On 06-07-17, 10:49, Dietmar Eggemann wrote:
>> Define arch_set_freq_scale to be the arch_topology "driver" function
>> topology_set_freq_scale() to let FIE work correctly.
>>
>> Cc: Russell King <linux@....linux.org.uk>
>> Cc: Juri Lelli <juri.lelli@....com>
>> Signed-off-by: Dietmar Eggemann <dietmar.eggemann@....com>
>> ---
>>  arch/arm/include/asm/topology.h | 5 +++++
>>  arch/arm/kernel/topology.c      | 1 -
>>  2 files changed, 5 insertions(+), 1 deletion(-)
>>
>> diff --git a/arch/arm/include/asm/topology.h b/arch/arm/include/asm/topology.h
>> index 370f7a732900..ca05d1b90411 100644
>> --- a/arch/arm/include/asm/topology.h
>> +++ b/arch/arm/include/asm/topology.h
>> @@ -24,6 +24,11 @@ void init_cpu_topology(void);
>>  void store_cpu_topology(unsigned int cpuid);
>>  const struct cpumask *cpu_coregroup_mask(int cpu);
>>  
>> +#include <linux/arch_topology.h>
>> +
>> +/* Subscribe for input data for frequency-invariant load-tracking */
>> +#define arch_set_freq_scale topology_set_freq_scale
>> +
>>  #else
>>  
>>  static inline void init_cpu_topology(void) { }
>> diff --git a/arch/arm/kernel/topology.c b/arch/arm/kernel/topology.c
>> index bf949a763dbe..2c47a76c67b0 100644
>> --- a/arch/arm/kernel/topology.c
>> +++ b/arch/arm/kernel/topology.c
>> @@ -11,7 +11,6 @@
>>   * for more details.
>>   */
>>  
>> -#include <linux/arch_topology.h>
> 
> Why is this diff part of this patch ?

Since 'arch/$ARCH/include/asm/topology.h' now includes
'include/linux/arch_topology.h' and 'arch/$ARCH/kernel/topology.c'
already includes 'arch/$ARCH/include/asm/topology.h' I thought it's a
good idea to get rid of this include here.