linux-kernel - Re: [PATCH] acpi: acpica: add acpi status check prior walking through namespace

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Message-ID: <CAJZ5v0iTzJ-=8SWcS6Hu1rP4d-EeOHz2yDjTPMAq8BdW8smSPg@mail.gmail.com>
Date:   Wed, 13 Dec 2017 17:48:49 +0100
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Vadim Lomovtsev <Vadim.Lomovtsev@...iumnetworks.com>
Cc:     "Moore, Robert" <robert.moore@...el.com>,
        "Wysocki, Rafael J" <rafael.j.wysocki@...el.com>,
        "lenb@...nel.org" <lenb@...nel.org>,
        "linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
        "devel@...ica.org" <devel@...ica.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "vadim.lomovtsev@...ium.com" <vadim.lomovtsev@...ium.com>,
        "Schmauss, Erik" <erik.schmauss@...el.com>
Subject: Re: [PATCH] acpi: acpica: add acpi status check prior walking through namespace

On Wed, Dec 13, 2017 at 3:52 PM, Vadim Lomovtsev
<Vadim.Lomovtsev@...iumnetworks.com> wrote:
> On Tue, Dec 12, 2017 at 09:52:21PM +0000, Moore, Robert wrote:
>> Another way to look at this is that the kernel should not be calling ACPI interfaces if ACPI is disabled.
>
> Yes, I agree. So in this case the ltp_acpi test case has to be updated with such checking
> before calling ACPI interfaces. However, it seems that such calls was put there intentionally,
> without ACPI state check, as part of kernel testing strategy.

Not really.

Thanks,
Rafael