linux-kernel - Re: [PATCH] ACPI: processor_idle: Skip dummy wait for processors based on the Zen microarchitecture

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Message-ID: <YysNW3+Fc2zOYcCq@zn.tnic>
Date:   Wed, 21 Sep 2022 15:10:51 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     K Prateek Nayak <kprateek.nayak@....com>
Cc:     linux-kernel@...r.kernel.org, rafael@...nel.org, lenb@...nel.org,
        linux-acpi@...r.kernel.org, linux-pm@...r.kernel.org,
        dave.hansen@...ux.intel.com, tglx@...utronix.de, andi@...as.de,
        puwen@...on.cn, mario.limonciello@....com, peterz@...radead.org,
        rui.zhang@...el.com, gpiccoli@...lia.com,
        daniel.lezcano@...aro.org, ananth.narayan@....com,
        gautham.shenoy@....com, Calvin Ong <calvin.ong@....com>,
        stable@...r.kernel.org, regressions@...ts.linux.dev
Subject: Re: [PATCH] ACPI: processor_idle: Skip dummy wait for processors
 based on the Zen microarchitecture

On Wed, Sep 21, 2022 at 04:09:16PM +0530, K Prateek Nayak wrote:
> I was not aware of cpu_feature_enabled() and it makes perfect sense to
> use it here.

It is no difference what the callers use - we simply want to unify the
interfaces and not have boot_cpu* and cpu_feature_* and so on. One is
enough and we want to use cpu_feature_enabled() everywhere possible.

Thx.

-- 
Regards/Gruss,
    Boris.

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