Merge branch 'next' into for-linus

Prepare input updates for 6.6 merge window.

1 files changed, 19 insertions, 5 deletions

diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 4ca6672512722..f32570f72b90c 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -636,11 +636,19 @@ static int acpi_suspend_enter(suspend_state_t pm_state)
 	}
 
 	/*
-	 * Disable and clear GPE status before interrupt is enabled. Some GPEs
-	 * (like wakeup GPE) haven't handler, this can avoid such GPE misfire.
-	 * acpi_leave_sleep_state will reenable specific GPEs later
+	 * Disable all GPE and clear their status bits before interrupts are
+	 * enabled. Some GPEs (like wakeup GPEs) have no handlers and this can
+	 * prevent them from producing spurious interrups.
+	 *
+	 * acpi_leave_sleep_state() will reenable specific GPEs later.
+	 *
+	 * Because this code runs on one CPU with disabled interrupts (all of
+	 * the other CPUs are offline at this time), it need not acquire any
+	 * sleeping locks which may trigger an implicit preemption point even
+	 * if there is no contention, so avoid doing that by using a low-level
+	 * library routine here.
 	 */
-	acpi_disable_all_gpes();
+	acpi_hw_disable_all_gpes();
 	/* Allow EC transactions to happen. */
 	acpi_ec_unblock_transactions();
 
@@ -714,7 +722,13 @@ int acpi_s2idle_begin(void)
 int acpi_s2idle_prepare(void)
 {
 	if (acpi_sci_irq_valid()) {
-		enable_irq_wake(acpi_sci_irq);
+		int error;
+
+		error = enable_irq_wake(acpi_sci_irq);
+		if (error)
+			pr_warn("Warning: Failed to enable wakeup from IRQ %d: %d\n",
+				acpi_sci_irq, error);
+
 		acpi_ec_set_gpe_wake_mask(ACPI_GPE_ENABLE);
 	}