linux-kernel - Re: [PATCH] ACPI/APEI: Add BERT data driver

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Message-ID: <CAJZ5v0gML6bX2QW65Kv+huJtM4ZUjhw6PC=52hh8NiK-9Uqpzg@mail.gmail.com>
Date:   Thu, 17 Aug 2017 22:41:23 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     "Luck, Tony" <tony.luck@...el.com>
Cc:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Punit Agrawal <punit.agrawal@....com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>, Boris Petkov <bp@...e.de>,
        Tyler Baicar <tbaicar@...eaurora.org>,
        "linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ACPI/APEI: Add BERT data driver

On Thu, Aug 17, 2017 at 10:29 PM, Luck, Tony <tony.luck@...el.com> wrote:
> On Thu, Aug 17, 2017 at 09:28:53PM +0200, Rafael J. Wysocki wrote:
>> What about /sys/firmware/acpi/tables/data/ and then one file per table
>> under it with the same name as the table file under tables/ ?
>
> "data" works. ACPI table names are all upper-case, so it
> can't conflict. Any programs that scan the whole directory
> have to already skip "dynamic", so they likely would not
> be confused by the appearance of a second directory.
>
> For BERT there is only one blob of data. So naming it the
> same as the table is fine.  Maybe other tables might have
> more than one thing? If so, they could use the table name
> as a prefix, or make a subdirectory. We can cross that
> bridge if anyone finds additional useful things to add.

Actually, there already are multiple SSDTs on the majority of systems
and the corresponding files under tables/ are called SSDT1, SSDT2
etc., so we just need to follow the existing convention.

Thanks,
Rafael