linux-kernel - [PATCH v1] PM: hibernate: Use kernel_can_power

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Date:   Fri, 17 Jun 2022 15:24:02 +0300
From:   Dmitry Osipenko <dmitry.osipenko@...labora.com>
To:     "Rafael J . Wysocki" <rafael@...nel.org>,
        Ken Moffat <zarniwhoop@...world.com>
Cc:     linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org
Subject: [PATCH v1] PM: hibernate: Use kernel_can_power_off()

Use new kernel_can_power_off() API instead of legacy pm_power_off global
variable to fix regressed hibernation to disk where machine no longer
powers off when it should because ACPI power driver transitioned to the
new sys-off based API and it doesn't use pm_power_off anymore.

Fixes: 98f30d0ecf79 ("ACPI: power: Switch to sys-off handler API")
Tested-by: Ken Moffat <zarniwhoop@...world.com>
Reported-by: Ken Moffat <zarniwhhop@...world.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@...labora.com>
---
 kernel/power/hibernate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
index 20a66bf9f465..89c71fce225d 100644
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -665,7 +665,7 @@ static void power_down(void)
 		hibernation_platform_enter();
 		fallthrough;
 	case HIBERNATION_SHUTDOWN:
-		if (pm_power_off)
+		if (kernel_can_power_off())
 			kernel_power_off();
 		break;
 	}
-- 
2.35.3