linux-kernel - Re: [PATCH 09/10] platform/x86: intel_pmc_core: Add Package cstates residency info

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Message-ID: <38444053-cbab-ae6d-9504-18ca3cd84d15@linux.intel.com>
Date:   Tue, 12 Feb 2019 16:04:51 +0530
From:   "Bhardwaj, Rajneesh" <rajneesh.bhardwaj@...ux.intel.com>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Anshuman Gupta <anshuman.gupta@...el.com>,
        Platform Driver <platform-driver-x86@...r.kernel.org>,
        Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Arjan van de Ven <arjan@...ux.intel.com>,
        "David E. Box" <david.e.box@...el.com>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        Len Brown <len.brown@...el.com>,
        "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>
Subject: Re: [PATCH 09/10] platform/x86: intel_pmc_core: Add Package cstates
 residency info


On 12-Feb-19 3:55 PM, Andy Shevchenko wrote:
> On Mon, Feb 11, 2019 at 8:32 PM Bhardwaj, Rajneesh
> <rajneesh.bhardwaj@...ux.intel.com> wrote:
>> On 11-Feb-19 10:11 PM, Anshuman Gupta wrote:
>>> On Fri, Feb 01, 2019 at 01:02:33PM +0530, Rajneesh Bhardwaj wrote:
>>>> This patch introduces a new debugfs entry to read current Package
>>>> cstate residency counters. A similar variant of this patch was discussed
>>>> earlier "https://patchwork.kernel.org/patch/9908563/" but didn't make it
>>>> into mainline for various reasons. Current version only adds debugfs
>>>> entry which is quite useful for S0ix debug but excludes the exported API
>>>> that was there in initial version. Though there are tools like turbostat
>>>> and socwatch which can also show this info but sometimes its more
>>>> practical to have it here as it's hard to switch between various tools for
>>>> S0ix debug when pmc_core driver is the primary debug tool. Internal and
>>>> external customers have requested for this patch to be included in the
>>>> PMC driver on many occasions and Google Chrome OS team has already included
>>>> it in their builds. This becomes handy when requesting logs from external
>>>> customers who may not always have above mentioned tools in their integrated
>>>> kernel builds.
>>>     Tested-by: Anshuman Gupta <anshuman.gupta@...el.com>
>>>     Acked-by: Anshuman Gupta <anshuman.gupta@...el.com>
>> Hi Andy, Darren - Can i used Acked-and-tested-by instead of these two?
> Better to split. I didn't see in common practice acked-and-tested.
> Rather reviewed-and-tested, or reported-and-tested.


Sure Andy, I can do as you suggest but i am confused now because on 
another patch i've got "Acked-and-tested-by" only i.e. just one single 
tag. So for consistency, what should i do? I also noticed that this tag 
is used about 59 times in Linux kernel and i even found one 
"Reported-Acked-and-Tested-by" too :) though i understand these may not 
be acceptable by all Maintainers. So, please guide.

>