Thread (8 messages) 8 messages, 3 authors, 2021-09-07

Re: New warning: PRMT not found

From: "Rafael J. Wysocki" <rafael@kernel.org>
Date: 2021-09-06 12:03:24
Also in: lkml

On Mon, Sep 6, 2021 at 1:51 PM Paul Menzel [off-list ref] wrote:
Dear Rafael, dear Len,


Intel’s MTA rejects Erik’s address:

     [off-list ref]: host mga17.intel.com[192.55.52.151] said:
550 #5.1.0
         Address rejected. (in reply to RCPT TO command)

So, I assume Erik left Intel.


Am 26.07.21 um 09:42 schrieb Paul Menzel:
quoted
Dear Erik,


The new code added in commit cefc7ca462 (ACPI: PRM: implement
OperationRegion handler for the PlatformRtMechanism subtype) causes
Linux to log a warning on my desktop system Asus F2A85-M PRO.

     PRMT not found

The help text for the Kconfig option `ACPI_PRMT` suggests it’s mainly
used for server systems, so the warning does not apply to a lot of
systems. Therefore, in my opinion, the option should not be selected by
default, or the warning be removed or demoted, and phrased in a way,
that users can understand the consequences.
The new warning shows up on a lot of systems, with no indication what to
do about it or why Linux actually warns about it.

Should the message be removed entirely? Or is there another indicator
for systems where absent PRMT causes problems, so should be warned about?
This should be addressed by commit 2bbfa0addd63 "ACPI: PRM: Deal with
table not present or no module found", or yet another fix is needed.

Thanks!
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