---

yaml
---
r: 63955
b: refs/heads/master
c: 6712a4f
h: refs/heads/master
i:
  63953: 1c76965
  63951: 8bd1c06
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 66b568218ab73be161dc109b913e6fa7dda44e16
+refs/heads/master: 6712a4fbb14a466d259e53a5314d8011ecab3d7b

trunk/Documentation/kernel-parameters.txt

@@ -163,6 +163,8 @@ and is between 256 and 4096 characters. It is defined in the file
 	acpi_irq_isa=	[HW,ACPI] If irq_balance, mark listed IRQs used by ISA
 			Format: <irq>,<irq>...
 
+	acpi_no_auto_ssdt	[HW,ACPI] Disable automatic loading of SSDT
+
 	acpi_os_name=	[HW,ACPI] Tell ACPI BIOS the name of the OS
 			Format: To spoof as Windows 98: ="Microsoft Windows"
 
@@ -1820,6 +1822,26 @@ and is between 256 and 4096 characters. It is defined in the file
 	thash_entries=	[KNL,NET]
 			Set number of hash buckets for TCP connection
 
+	thermal.act=	[HW,ACPI]
+			-1: disable all active trip points in all thermal zones
+			<degrees C>: override all lowest active trip points
+
+	thermal.nocrt=	[HW,ACPI]
+			Set to disable actions on ACPI thermal zone
+			critical and hot trip points.
+
+	thermal.off=	[HW,ACPI]
+			1: disable ACPI thermal control
+
+	thermal.psv=	[HW,ACPI]
+			-1: disable all passive trip points
+			<degrees C>: override all passive trip points to this value
+
+	thermal.tzp=	[HW,ACPI]
+			Specify global default ACPI thermal zone polling rate
+			<deci-seconds>: poll all this frequency
+			0: no polling (default)
+
 	time		Show timing data prefixed to each printk message line
 			[deprecated, see 'printk.time']
 

trunk/Documentation/thinkpad-acpi.txt

@@ -105,10 +105,10 @@ The version of thinkpad-acpi's sysfs interface is exported by the driver
 as a driver attribute (see below).
 
 Sysfs driver attributes are on the driver's sysfs attribute space,
-for 2.6.20 this is /sys/bus/platform/drivers/thinkpad-acpi/.
+for 2.6.20 this is /sys/bus/platform/drivers/thinkpad_acpi/.
 
 Sysfs device attributes are on the driver's sysfs attribute space,
-for 2.6.20 this is /sys/devices/platform/thinkpad-acpi/.
+for 2.6.20 this is /sys/devices/platform/thinkpad_acpi/.
 
 Driver version
 --------------

trunk/drivers/acpi/asus_acpi.c

@@ -1192,6 +1192,7 @@ static int asus_hotk_get_info(void)
 			break;
 		default:
 			kfree(model);
+			model = NULL;
 			break;
 		}
 	}

trunk/drivers/acpi/battery.c

@@ -113,7 +113,7 @@ struct acpi_battery_info {
 	acpi_string oem_info;
 };
 
-enum acpi_battery_files{
+enum acpi_battery_files {
 	ACPI_BATTERY_INFO = 0,
 	ACPI_BATTERY_STATE,
 	ACPI_BATTERY_ALARM,
@@ -129,13 +129,14 @@ struct acpi_battery_flags {
 };
 
 struct acpi_battery {
-	struct mutex mutex;
 	struct acpi_device *device;
 	struct acpi_battery_flags flags;
 	struct acpi_buffer bif_data;
 	struct acpi_buffer bst_data;
+	struct mutex lock;
 	unsigned long alarm;
 	unsigned long update_time[ACPI_BATTERY_NUMFILES];
+
 };
 
 inline int acpi_battery_present(struct acpi_battery *battery)
@@ -235,10 +236,10 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
 		return 0;
 
 	/* Evaluate _BIF */
-
-	status =
-	    acpi_evaluate_object(acpi_battery_handle(battery), "_BIF", NULL,
-				 &buffer);
+	mutex_lock(&battery->lock);
+	status = acpi_evaluate_object(acpi_battery_handle(battery), "_BIF",
+				      NULL, &buffer);
+	mutex_unlock(&battery->lock);
 	if (ACPI_FAILURE(status)) {
 		ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BIF"));
 		return -ENODEV;
@@ -285,10 +286,10 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
 		return 0;
 
 	/* Evaluate _BST */
-
-	status =
-	    acpi_evaluate_object(acpi_battery_handle(battery), "_BST", NULL,
-				 &buffer);
+	mutex_lock(&battery->lock);
+	status = acpi_evaluate_object(acpi_battery_handle(battery), "_BST",
+				      NULL, &buffer);
+	mutex_unlock(&battery->lock);
 	if (ACPI_FAILURE(status)) {
 		ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BST"));
 		return -ENODEV;
@@ -336,9 +337,10 @@ static int acpi_battery_set_alarm(struct acpi_battery *battery,
 
 	arg0.integer.value = alarm;
 
-	status =
-	    acpi_evaluate_object(acpi_battery_handle(battery), "_BTP",
+	mutex_lock(&battery->lock);
+	status = acpi_evaluate_object(acpi_battery_handle(battery), "_BTP",
 				 &arg_list, NULL);
+	mutex_unlock(&battery->lock);
 	if (ACPI_FAILURE(status))
 		return -ENODEV;
 
@@ -658,8 +660,6 @@ acpi_battery_write_alarm(struct file *file,
 	if (!battery || (count > sizeof(alarm_string) - 1))
 		return -EINVAL;
 
-	mutex_lock(&battery->mutex);
-
 	result = acpi_battery_update(battery, 1, &update_result);
 	if (result) {
 		result = -ENODEV;
@@ -688,9 +688,7 @@ acpi_battery_write_alarm(struct file *file,
 	acpi_battery_check_result(battery, result);
 
 	if (!result)
-		result = count;
-
-	mutex_unlock(&battery->mutex);
+		return count;
 
 	return result;
 }
@@ -714,8 +712,6 @@ static int acpi_battery_read(int fid, struct seq_file *seq)
 	int update_result = ACPI_BATTERY_NONE_UPDATE;
 	int update = 0;
 
-	mutex_lock(&battery->mutex);
-
 	update = (get_seconds() - battery->update_time[fid] >= update_time);
 	update = (update | battery->flags.update[fid]);
 
@@ -733,7 +729,6 @@ static int acpi_battery_read(int fid, struct seq_file *seq)
 	result = acpi_read_funcs[fid].print(seq, result);
 	acpi_battery_check_result(battery, result);
 	battery->flags.update[fid] = result;
-	mutex_unlock(&battery->mutex);
 	return result;
 }
 
@@ -897,10 +892,7 @@ static int acpi_battery_add(struct acpi_device *device)
 	if (!battery)
 		return -ENOMEM;
 
-	mutex_init(&battery->mutex);
-
-	mutex_lock(&battery->mutex);
-
+	mutex_init(&battery->lock);
 	battery->device = device;
 	strcpy(acpi_device_name(device), ACPI_BATTERY_DEVICE_NAME);
 	strcpy(acpi_device_class(device), ACPI_BATTERY_CLASS);
@@ -936,7 +928,6 @@ static int acpi_battery_add(struct acpi_device *device)
 		kfree(battery);
 	}
 
-	mutex_unlock(&battery->mutex);
 
 	return result;
 }
@@ -951,8 +942,6 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
 
 	battery = acpi_driver_data(device);
 
-	mutex_lock(&battery->mutex);
-
 	status = acpi_remove_notify_handler(device->handle,
 					    ACPI_ALL_NOTIFY,
 					    acpi_battery_notify);
@@ -963,9 +952,7 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
 
 	kfree(battery->bst_data.pointer);
 
-	mutex_unlock(&battery->mutex);
-
-	mutex_destroy(&battery->mutex);
+	mutex_destroy(&battery->lock);
 
 	kfree(battery);
 

trunk/drivers/acpi/tables/tbxface.c

@@ -52,6 +52,8 @@ ACPI_MODULE_NAME("tbxface")
 /* Local prototypes */
 static acpi_status acpi_tb_load_namespace(void);
 
+static int no_auto_ssdt;
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_allocate_root_table
@@ -536,6 +538,10 @@ static acpi_status acpi_tb_load_namespace(void)
 
 		ACPI_INFO((AE_INFO, "Table DSDT replaced by host OS"));
 		acpi_tb_print_table_header(0, table);
+
+		if (no_auto_ssdt == 0) {
+			printk(KERN_WARNING "ACPI: DSDT override uses original SSDTs unless \"acpi_no_auto_ssdt\"");
+		}
 	}
 
 	status =
@@ -577,6 +583,11 @@ static acpi_status acpi_tb_load_namespace(void)
 			continue;
 		}
 
+		if (no_auto_ssdt) {
+			printk(KERN_WARNING "ACPI: SSDT ignored due to \"acpi_no_auto_ssdt\"\n");
+			continue;
+		}
+
 		/* Ignore errors while loading tables, get as many as possible */
 
 		(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
@@ -622,3 +633,15 @@ acpi_status acpi_load_tables(void)
 }
 
 ACPI_EXPORT_SYMBOL(acpi_load_tables)
+
+
+static int __init acpi_no_auto_ssdt_setup(char *s) {
+
+        printk(KERN_NOTICE "ACPI: SSDT auto-load disabled\n");
+
+        no_auto_ssdt = 1;
+
+        return 1;
+}
+
+__setup("acpi_no_auto_ssdt", acpi_no_auto_ssdt_setup);