ACPI: Add debug statements to acpi_global_event_handler()

It sometimes is useful to examine the timing of ACPI events during
certain operations only, like during system suspend/resume, so add
pr_debug() statements for that to acpi_global_event_handler().

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
index e414fabf73158d77fba356be2c10354647e81a44..32d7e43b64c4670e30c549e97a3f9f44ba5755fa 100644 (file)
--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@@ -2,6 +2,8 @@
  * sysfs.c - ACPI sysfs interface to userspace.
  */
 
+#define pr_fmt(fmt) "ACPI: " fmt
+
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/moduleparam.h>
@@ -552,11 +554,15 @@ static void fixed_event_count(u32 event_number)
 static void acpi_global_event_handler(u32 event_type, acpi_handle device,
        u32 event_number, void *context)
 {
-       if (event_type == ACPI_EVENT_TYPE_GPE)
+       if (event_type == ACPI_EVENT_TYPE_GPE) {
                gpe_count(event_number);
-
-       if (event_type == ACPI_EVENT_TYPE_FIXED)
+               pr_debug("GPE event 0x%02x\n", event_number);
+       } else if (event_type == ACPI_EVENT_TYPE_FIXED) {
                fixed_event_count(event_number);
+               pr_debug("Fixed event 0x%02x\n", event_number);
+       } else {
+               pr_debug("Other event 0x%02x\n", event_number);
+       }
 }
 
 static int get_status(u32 index, acpi_event_status *status,