Merge intel.com:/home/lenb/src/linux-acpi-test-2.6.1

into intel.com:/home/lenb/src/linux-acpi-test-2.6.2

arch/i386/boot/setup.S

@@ -307,7 +307,7 @@ loader_ok:
 # a whole bunch of different types, and allows memory holes and
 # everything.  We scan through this memory map and build a list
 # of the first 32 memory areas, which we return at [E820MAP].
-# This is documented at http://www.teleport.com/~acpi/acpihtml/topic245.htm
+# This is documented at http://www.acpi.info/, in the ACPI 2.0 specification.
 
 #define SMAP  0x534d4150
 

drivers/acpi/ac.c

@@ -108,7 +108,7 @@ acpi_ac_get_state (
                               FS Interface (/proc)
    -------------------------------------------------------------------------- */
 
-struct proc_dir_entry		*acpi_ac_dir = NULL;
+struct proc_dir_entry		*acpi_ac_dir;
 
 int acpi_ac_seq_show(struct seq_file *seq, void *offset)
 {

drivers/acpi/asus_acpi.c

@@ -73,8 +73,8 @@ MODULE_DESCRIPTION(ACPI_HOTK_NAME);
 MODULE_LICENSE("GPL");
 
 
-static uid_t asus_uid = 0;
-static gid_t asus_gid = 0;
+static uid_t asus_uid;
+static gid_t asus_gid;
 MODULE_PARM(asus_uid, "i");
 MODULE_PARM_DESC(uid, "UID for entries in /proc/acpi/asus.\n");
 MODULE_PARM(asus_gid, "i");
@@ -192,14 +192,14 @@ static struct model_data model_conf[END_MODEL] = {
 };
 
 /* procdir we use */
-static struct proc_dir_entry *asus_proc_dir = NULL;
+static struct proc_dir_entry *asus_proc_dir;
 
 /*
  * This header is made available to allow proper configuration given model,
  * revision number , ... this info cannot go in struct asus_hotk because it is
  * available before the hotk
  */
-static struct acpi_table_header *asus_info = NULL;
+static struct acpi_table_header *asus_info;
 
 /*
  * The hotkey driver declaration

drivers/acpi/battery.c

@@ -340,7 +340,7 @@ acpi_battery_check (
                               FS Interface (/proc)
    -------------------------------------------------------------------------- */
 
-struct proc_dir_entry		*acpi_battery_dir = NULL;
+struct proc_dir_entry		*acpi_battery_dir;
 
 static int
 acpi_battery_read_info (

drivers/acpi/button.c

@@ -107,7 +107,7 @@ static struct file_operations acpi_button_state_fops = {
                               FS Interface (/proc)
    -------------------------------------------------------------------------- */
 
-static struct proc_dir_entry	*acpi_button_dir = NULL;
+static struct proc_dir_entry	*acpi_button_dir;
 
 static int acpi_button_info_seq_show(struct seq_file *seq, void *offset)
 {

drivers/acpi/ec.c

@@ -475,7 +475,7 @@ acpi_ec_space_handler (
                               FS Interface (/proc)
    -------------------------------------------------------------------------- */
 
-struct proc_dir_entry		*acpi_ec_dir = NULL;
+struct proc_dir_entry		*acpi_ec_dir;
 
 
 static int

drivers/acpi/fan.c

@@ -71,7 +71,7 @@ struct acpi_fan {
                               FS Interface (/proc)
    -------------------------------------------------------------------------- */
 
-struct proc_dir_entry		*acpi_fan_dir = NULL;
+struct proc_dir_entry		*acpi_fan_dir;
 
 
 static int

drivers/acpi/osl.c

@@ -59,13 +59,13 @@ struct acpi_os_dpc
 #ifdef ENABLE_DEBUGGER
 #include <linux/kdb.h>
 /* stuff for debugger support */
-int acpi_in_debugger = 0;
+int acpi_in_debugger;
 extern char line_buf[80];
 #endif /*ENABLE_DEBUGGER*/
 
-static int acpi_irq_irq = 0;
-static OSD_HANDLER acpi_irq_handler = NULL;
-static void *acpi_irq_context = NULL;
+static int acpi_irq_irq;
+static OSD_HANDLER acpi_irq_handler;
+static void *acpi_irq_context;
 
 acpi_status
 acpi_os_initialize(void)
@@ -257,13 +257,13 @@ acpi_os_install_interrupt_handler(u32 irq, OSD_HANDLER handler, void *context)
 		return AE_OK;
 	}
 #endif
-	acpi_irq_irq = irq;
 	acpi_irq_handler = handler;
 	acpi_irq_context = context;
 	if (request_irq(irq, acpi_irq, SA_SHIRQ, "acpi", acpi_irq)) {
 		printk(KERN_ERR PREFIX "SCI (IRQ%d) allocation failed\n", irq);
 		return AE_NOT_ACQUIRED;
 	}
+	acpi_irq_irq = irq;
 
 	return AE_OK;
 }
@@ -271,12 +271,13 @@ acpi_os_install_interrupt_handler(u32 irq, OSD_HANDLER handler, void *context)
 acpi_status
 acpi_os_remove_interrupt_handler(u32 irq, OSD_HANDLER handler)
 {
-	if (acpi_irq_handler) {
+	if (irq) {
 #ifdef CONFIG_IA64
 		irq = acpi_irq_to_vector(irq);
 #endif
 		free_irq(irq, acpi_irq);
 		acpi_irq_handler = NULL;
+		acpi_irq_irq = 0;
 	}
 
 	return AE_OK;

drivers/acpi/power.c

@@ -387,7 +387,7 @@ acpi_power_transition (
                               FS Interface (/proc)
    -------------------------------------------------------------------------- */
 
-struct proc_dir_entry		*acpi_power_dir = NULL;
+struct proc_dir_entry		*acpi_power_dir;
 
 static int acpi_power_seq_show(struct seq_file *seq, void *offset)
 {

drivers/acpi/processor.c

@@ -138,7 +138,7 @@ static struct file_operations acpi_processor_limit_fops = {
 
 static struct acpi_processor	*processors[NR_CPUS];
 static struct acpi_processor_errata errata;
-static void (*pm_idle_save)(void) = NULL;
+static void (*pm_idle_save)(void);
 
 
 /* --------------------------------------------------------------------------

drivers/acpi/scan.c

@@ -706,11 +706,11 @@ acpi_bus_add (
 	switch (type) {
 	case ACPI_BUS_TYPE_DEVICE:
 		result = acpi_bus_get_status(device);
-		if (!result)
-			break;
-		if (!device->status.present) 
+		if (ACPI_FAILURE(result) || !device->status.present) {
 			result = -ENOENT;
-		goto end;
+			goto end;
+		}
+		break;
 	default:
 		STRUCT_TO_INT(device->status) = 0x0F;
 		break;

drivers/acpi/tables.c

@@ -276,10 +276,17 @@ acpi_get_table_header_early (
 
 	/* Map the DSDT header via the pointer in the FADT */
 	if (id == ACPI_DSDT) {
-		struct acpi_table_fadt *fadt = (struct acpi_table_fadt *) *header;
+		struct fadt_descriptor_rev2 *fadt = (struct fadt_descriptor_rev2 *) *header;
+
+		if (fadt->revision == 3 && fadt->Xdsdt) {
+			*header = (void *) __acpi_map_table(fadt->Xdsdt,
+					sizeof(struct acpi_table_header));
+		} else if (fadt->V1_dsdt) {
+			*header = (void *) __acpi_map_table(fadt->V1_dsdt,
+					sizeof(struct acpi_table_header));
+		} else
+			*header = 0;
 
-		*header = (void *) __acpi_map_table(fadt->dsdt_addr,
-				sizeof(struct acpi_table_header));
 		if (!*header) {
 			printk(KERN_WARNING PREFIX "Unable to map DSDT\n");
 			return -ENODEV;

drivers/acpi/thermal.c

@@ -74,7 +74,7 @@ MODULE_AUTHOR("Paul Diefenbaugh");
 MODULE_DESCRIPTION(ACPI_THERMAL_DRIVER_NAME);
 MODULE_LICENSE("GPL");
 
-static int tzp = 0;
+static int tzp;
 MODULE_PARM(tzp, "i");
 MODULE_PARM_DESC(tzp, "Thermal zone polling frequency, in 1/10 seconds.\n");
 
@@ -766,7 +766,7 @@ acpi_thermal_check (
                               FS Interface (/proc)
    -------------------------------------------------------------------------- */
 
-struct proc_dir_entry		*acpi_thermal_dir = NULL;
+struct proc_dir_entry		*acpi_thermal_dir;
 
 static int acpi_thermal_state_seq_show(struct seq_file *seq, void *offset)
 {

drivers/acpi/toshiba_acpi.c

@@ -215,7 +215,7 @@ hci_read1(u32 reg, u32* out1, u32* result)
 	return status;
 }
 
-static struct proc_dir_entry*	toshiba_proc_dir = NULL;
+static struct proc_dir_entry*	toshiba_proc_dir;
 static int			force_fan;
 static int			last_key_event;
 static int			key_event_valid;