From: Lv Zheng <lv.zheng@intel.com>
Subject: [DBG PATCH] ACPI: bugzilla.kernel.org 70891 debugging for initialization processes.

This is used to figure out the initialization process that caused
the 6 seconds delay.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
---
Index: linux-acpica/drivers/acpi/bus.c
===================================================================
--- linux-acpica.orig/drivers/acpi/bus.c
+++ linux-acpica/drivers/acpi/bus.c
@@ -567,6 +567,8 @@ static int __init acpi_bus_init(void)
 	status = acpi_ec_ecdt_probe();
 	/* Ignore result. Not having an ECDT is not fatal. */
 
+	printk(KERN_INFO PREFIX
+	       "acpi_initialize_objects executing...\n");
 	status = acpi_initialize_objects(ACPI_FULL_INITIALIZATION);
 	if (ACPI_FAILURE(status)) {
 		printk(KERN_ERR PREFIX "Unable to initialize ACPI objects\n");
@@ -577,20 +579,28 @@ static int __init acpi_bus_init(void)
 	 * _OSC method may exist in module level code,
 	 * so it must be run after ACPI_FULL_INITIALIZATION
 	 */
+	printk(KERN_INFO PREFIX
+	       "acpi_bus_osc_support executing...\n");
 	acpi_bus_osc_support();
 
 	/*
 	 * _PDC control method may load dynamic SSDT tables,
 	 * and we need to install the table handler before that.
 	 */
+	printk(KERN_INFO PREFIX
+	       "acpi_sysfs_init executing...\n");
 	acpi_sysfs_init();
 
+	printk(KERN_INFO PREFIX
+	       "acpi_early_processor_set_pdc executing...\n");
 	acpi_early_processor_set_pdc();
 
 	/*
 	 * Maybe EC region is required at bus_scan/acpi_get_devices. So it
 	 * is necessary to enable it as early as possible.
 	 */
+	printk(KERN_INFO PREFIX
+	       "acpi_boot_ec_enable executing...\n");
 	acpi_boot_ec_enable();
 
 	printk(KERN_INFO PREFIX "Interpreter enabled\n");