linux-kernel - RE: [PATCH v5 1/8] x86/resctrl: Prepare for new domain scope

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Date:   Tue, 26 Sep 2023 17:18:32 +0000
From:   "Luck, Tony" <tony.luck@...el.com>
To:     "babu.moger@....com" <babu.moger@....com>,
        "Yu, Fenghua" <fenghua.yu@...el.com>,
        "Chatre, Reinette" <reinette.chatre@...el.com>,
        Peter Newman <peternewman@...gle.com>,
        Jonathan Corbet <corbet@....net>,
        Shuah Khan <skhan@...uxfoundation.org>,
        "x86@...nel.org" <x86@...nel.org>
CC:     Shaopeng Tan <tan.shaopeng@...itsu.com>,
        James Morse <james.morse@....com>,
        Jamie Iles <quic_jiles@...cinc.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
        "patches@...ts.linux.dev" <patches@...ts.linux.dev>
Subject: RE: [PATCH v5 1/8] x86/resctrl: Prepare for new domain scope

>> +enum resctrl_scope {
>> +	RESCTRL_L3_CACHE,
>> +	RESCTRL_L2_CACHE,
>> +};
>
> How about?
>
> enum resctrl_scope {
>       RESCTRL_L2_CACHE = 2,
>       RESCTRL_L3_CACHE,
> };

Babu. Thanks for the review.

Reinette made the same observation. I'm updating the
patch to do this. With small extra defensive step to explicitly define

	RESCTRL_L3_CACHE = 3,

rather than relying on the compiler picking the next integer ... just in
case somebody adds another enum between the L2 and L3 lines.

-Tony