[PATCH] ACPI: PM: Print debug messages when enabling GPEs for wakeup

From: Rafael J. Wysocki
Date: Wed Apr 03 2019 - 18:00:12 EST


From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>

In sufficiently complicated GPE configurations it is hard to
determine which GPE could be the source of system wakeup from a sleep
state, so make __acpi_device_wakeup_enable() print that information
to the kernel log if debugging is enabled.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
---
drivers/acpi/device_pm.c | 3 +++
1 file changed, 3 insertions(+)

Index: linux-pm/drivers/acpi/device_pm.c
===================================================================
--- linux-pm.orig/drivers/acpi/device_pm.c
+++ linux-pm/drivers/acpi/device_pm.c
@@ -728,6 +728,9 @@ static int __acpi_device_wakeup_enable(s
goto out;
}

+ acpi_handle_debug(adev->handle, "GPE%2X enabled for wakeup\n",
+ (unsigned int)wakeup->gpe_number);
+
inc:
wakeup->enable_count++;