ACPI/PPTT: Add acpi_pptt_warn_missing() to consolidate logs

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For a system using ACPI-based FW without a PPTT, we may get many warnings
about the lack of a PPTT, as shown:

root@(none)$ dmesg | grep -i pptt
[    0.010125] ACPI PPTT: No PPTT table found, cpu topology may be inaccurate
[    7.138339] ACPI PPTT: No PPTT table found, cache topology may be inaccurate
[    7.145368] ACPI PPTT: No PPTT table found, cache topology may be inaccurate

These logs are generated with pr_warn_once(), so the intention was for a
single log, but the logs overlap, so consolidate them.

Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

...

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John Garry 2019-02-08 00:14:21 +08:00 • committed by Rafael J. Wysocki

parent 98a455d91e

commit 6cafe700b0

1 changed files with 9 additions and 4 deletions

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drivers/acpi/pptt.c

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