ACPI: PM: s2idle: Refine active GPEs check

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The check for any active GPEs added by commit fdde0ff859 ("ACPI:
PM: s2idle: Prevent spurious SCIs from waking up the system") turns
out to be insufficiently precise to prevent some systems from
resuming prematurely due to a spurious EC wakeup, so refine it
by first checking if any GPEs other than the EC GPE are active
and skipping all of the SCIs coming from the EC that do not produce
any genuine wakeup events after processing.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=206629
Fixes: fdde0ff859 ("ACPI: PM: s2idle: Prevent spurious SCIs from waking up the system")
Reported-by: Ondřej Caletka <ondrej@caletka.cz>
Tested-by: Ondřej Caletka <ondrej@caletka.cz>
Cc: 5.4+ <stable@vger.kernel.org> # 5.4+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

...

This commit is contained in:

Rafael J. Wysocki 2020-03-25 11:55:48 +01:00

parent 0ce792d660

commit d5406284ff

3 changed files with 16 additions and 9 deletions

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5

drivers/acpi/ec.c

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1

drivers/acpi/internal.h

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19

drivers/acpi/sleep.c

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