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Reply-To: Gavin Shan <gshan@redhat.com>
Subject: Re: [PATCH v3 09/16] arch_topology: Drop LLC identifier stash from
 the CPU topology
To:     Sudeep Holla <sudeep.holla@arm.com>, linux-kernel@vger.kernel.org
Cc:     Atish Patra <atishp@atishpatra.org>,
        Atish Patra <atishp@rivosinc.com>,
        Vincent Guittot <vincent.guittot@linaro.org>,
        Morten Rasmussen <morten.rasmussen@arm.com>,
        Dietmar Eggemann <dietmar.eggemann@arm.com>,
        Qing Wang <wangqing@vivo.com>,
        linux-arm-kernel@lists.infradead.org,
        linux-riscv@lists.infradead.org, Rob Herring <robh+dt@kernel.org>
References: <20220525081416.3306043-1-sudeep.holla@arm.com>
 <20220525081416.3306043-2-sudeep.holla@arm.com>
 <20220525081416.3306043-3-sudeep.holla@arm.com>
 <20220525081416.3306043-4-sudeep.holla@arm.com>
 <20220525081416.3306043-5-sudeep.holla@arm.com>
 <20220525081416.3306043-6-sudeep.holla@arm.com>
 <20220525081416.3306043-7-sudeep.holla@arm.com>
 <20220525081416.3306043-8-sudeep.holla@arm.com>
 <20220525081416.3306043-9-sudeep.holla@arm.com>
 <20220525081416.3306043-10-sudeep.holla@arm.com>
From:   Gavin Shan <gshan@redhat.com>
Message-ID: <3860bfcc-a323-c031-0fdd-77001d338bec@redhat.com>
Date:   Wed, 1 Jun 2022 11:35:20 +0800
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Hi Sudeep,

On 5/25/22 4:14 PM, Sudeep Holla wrote:
> Since the cacheinfo LLC information is used directly in arch_topology,
> there is no need to parse and store the LLC ID information only for
> ACPI systems in the CPU topology.
> 
> Remove the redundant LLC ID from the generic CPU arch_topology information.
> 
> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
> ---
>   drivers/base/arch_topology.c  | 1 -
>   include/linux/arch_topology.h | 1 -
>   2 files changed, 2 deletions(-)
> 

How about merge the changes to PATCH[08/16]? I don't see why we need put
the changes into separate patches.

> diff --git a/drivers/base/arch_topology.c b/drivers/base/arch_topology.c
> index 4c486e4e6f2f..76c702c217c5 100644
> --- a/drivers/base/arch_topology.c
> +++ b/drivers/base/arch_topology.c
> @@ -747,7 +747,6 @@ void __init reset_cpu_topology(void)
>   		cpu_topo->core_id = -1;
>   		cpu_topo->cluster_id = -1;
>   		cpu_topo->package_id = -1;
> -		cpu_topo->llc_id = -1;
>   
>   		clear_cpu_topology(cpu);
>   	}
> diff --git a/include/linux/arch_topology.h b/include/linux/arch_topology.h
> index 58cbe18d825c..a07b510e7dc5 100644
> --- a/include/linux/arch_topology.h
> +++ b/include/linux/arch_topology.h
> @@ -68,7 +68,6 @@ struct cpu_topology {
>   	int core_id;
>   	int cluster_id;
>   	int package_id;
> -	int llc_id;
>   	cpumask_t thread_sibling;
>   	cpumask_t core_sibling;
>   	cpumask_t cluster_sibling;
> 

Thanks,
Gavin