Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (30 commits)
  ACPI: work around duplicate name "VID" problem on T61
  acpiphp_ibm: add missing '\n' to error message
  ACPI: add dump_stack() to trace acpi_format_exception programming errors
  make drivers/acpi/scan.c:create_modalias() static
  ACPI: Fix a warning of discarding qualifiers from pointer target type
  ACPI: "ACPI handle has no context!" should be KERN_DEBUG
  ACPI video hotkey: export missing ACPI video hotkey events via input layer
  ACPI: Validate XSDT, use RSDT if XSDT fails
  ACPI: /proc/acpi/thermal_zone trip points are now read-only, mark them as such
  ACPI: fix ia64 allnoconfig build
  PNP: remove null pointer checks
  PNP: remove MODULE infrastructure
  ISAPNP: removed unused isapnp_detected and ISAPNP_DEBUG
  PNPACPI: remove unnecessary casts of "void *"
  PNPACPI: simplify irq_flags()
  PNP: fix up after Lindent
  ACPI: enable GPEs before calling _WAK on resume
  asus-laptop: Fix rmmod of asus_laptop
  sony-laptop: call sonypi_compat_init earlier
  sony-laptop: enable Vaio FZ events
  ...

47 files changed, 502 insertions, 336 deletions

diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index a43d2878a4ef..b9a3fdc1cc5a 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -197,6 +197,14 @@ Who:	Len Brown <len.brown@intel.com>
 
 ---------------------------
 
+What:	/proc/acpi/event
+When:	February 2008
+Why:	/proc/acpi/event has been replaced by events via the input layer
+	and netlink since 2.6.23.
+Who:	Len Brown <len.brown@intel.com>
+
+---------------------------
+
 What:	Compaq touchscreen device emulation
 When:	Oct 2007
 Files:	drivers/input/tsdev.c
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 975f029be25c..b41cde31d112 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -952,14 +952,10 @@ and is between 256 and 4096 characters. It is defined in the file
 			Format: <1-256>
 
 	maxcpus=	[SMP] Maximum number of processors that	an SMP kernel
-			should make use of.
-			Using "nosmp" or "maxcpus=0" will disable SMP
-			entirely (the MPS table probe still happens, though).
-			A command-line option of "maxcpus=<NUM>", where <NUM>
-			is an integer greater than 0, limits the maximum number
-			of CPUs activated in SMP mode to <NUM>.
-			Using "maxcpus=1" on an SMP kernel is the trivial
-			case of an SMP kernel with only one CPU.
+			should make use of.  maxcpus=n : n >= 0 limits the
+			kernel to using 'n' processors.  n=0 is a special case,
+			it is equivalent to "nosmp", which also disables
+			the IO APIC.
 
 	max_addr=[KMG]	[KNL,BOOT,ia64] All physical memory greater than or
 			equal to this physical address is ignored.
@@ -1184,7 +1180,8 @@ and is between 256 and 4096 characters. It is defined in the file
 
 	nosep		[BUGS=X86-32] Disables x86 SYSENTER/SYSEXIT support.
 
-	nosmp		[SMP] Tells an SMP kernel to act as a UP kernel.
+	nosmp		[SMP] Tells an SMP kernel to act as a UP kernel,
+			and disable the IO APIC.  legacy for "maxcpus=0".
 
 	nosoftlockup	[KNL] Disable the soft-lockup detector.
 
@@ -1826,6 +1823,10 @@ and is between 256 and 4096 characters. It is defined in the file
 			-1: disable all active trip points in all thermal zones
 			<degrees C>: override all lowest active trip points
 
+	thermal.crt=	[HW,ACPI]
+			-1: disable all critical trip points in all thermal zones
+			<degrees C>: lower all critical trip points
+
 	thermal.nocrt=	[HW,ACPI]
 			Set to disable actions on ACPI thermal zone
 			critical and hot trip points.
diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c
index 4b8a8da4b2e0..e2f4a1c68547 100644
--- a/arch/i386/kernel/io_apic.c
+++ b/arch/i386/kernel/io_apic.c
@@ -754,14 +754,6 @@ static int pirq_entries [MAX_PIRQS];
 static int pirqs_enabled;
 int skip_ioapic_setup;
 
-static int __init ioapic_setup(char *str)
-{
-	skip_ioapic_setup = 1;
-	return 1;
-}
-
-__setup("noapic", ioapic_setup);
-
 static int __init ioapic_pirq_setup(char *str)
 {
 	int i, max;
diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c
index f57f8b901912..966fa1062491 100644
--- a/arch/x86_64/kernel/io_apic.c
+++ b/arch/x86_64/kernel/io_apic.c
@@ -397,14 +397,12 @@ static void clear_IO_APIC (void)
 int skip_ioapic_setup;
 int ioapic_force;
 
-/* dummy parsing: see setup.c */
-
-static int __init disable_ioapic_setup(char *str)
+static int __init parse_noapic(char *str)
 {
-	skip_ioapic_setup = 1;
+	disable_ioapic_setup();
 	return 0;
 }
-early_param("noapic", disable_ioapic_setup);
+early_param("noapic", parse_noapic);
 
 /* Actually the next is obsolete, but keep it for paranoid reasons -AK */
 static int __init disable_timer_pin_setup(char *arg)
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index f1372de4ce79..574259476fbf 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -68,6 +68,20 @@ config ACPI_PROCFS
 
 	  Say N to delete /proc/acpi/ files that have moved to /sys/
 
+config ACPI_PROC_EVENT
+	bool "Deprecated /proc/acpi/event support"
+	depends on PROC_FS
+	---help---
+	  A user-space daemon, acpi, typically read /proc/acpi/event
+	  and handled all ACPI sub-system generated events.
+
+	  These events are now delivered to user-space via
+	  either the input layer, or as netlink events.
+
+	  This build option enables the old code for for legacy
+	  user-space implementation.  After some time, this will
+	  be moved under CONFIG_ACPI_PROCFS, and then deleted.
+
 config ACPI_AC
 	tristate "AC Adapter"
 	depends on X86
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index d8b35093527a..26d70702b313 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -204,7 +204,10 @@ static void acpi_ac_notify(acpi_handle handle, u32 event, void *data)
 	case ACPI_NOTIFY_BUS_CHECK:
 	case ACPI_NOTIFY_DEVICE_CHECK:
 		acpi_ac_get_state(ac);
-		acpi_bus_generate_event(device, event, (u32) ac->state);
+		acpi_bus_generate_proc_event(device, event, (u32) ac->state);
+		acpi_bus_generate_netlink_event(device->pnp.device_class,
+						  device->dev.bus_id, event,
+						  (u32) ac->state);
 		break;
 	default:
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
diff --git a/drivers/acpi/asus_acpi.c b/drivers/acpi/asus_acpi.c
index 86fd142f4bf3..d915fec9bf63 100644
--- a/drivers/acpi/asus_acpi.c
+++ b/drivers/acpi/asus_acpi.c
@@ -1069,7 +1069,7 @@ static void asus_hotk_notify(acpi_handle handle, u32 event, void *data)
 		hotk->brightness = (event & ~((u32) BR_DOWN));
 	}
 
-	acpi_bus_generate_event(hotk->device, event,
+	acpi_bus_generate_proc_event(hotk->device, event,
 				hotk->event_count[event % 128]++);
 
 	return;
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index d7b499fe0cd9..9b2c0f74f869 100644
--- a/drivers/acpi/battery.c
+++ b/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,
@@ -129,14 +129,13 @@ 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)
@@ -236,10 +235,10 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
 		return 0;
 
 	/* Evaluate _BIF */
-	mutex_lock(&battery->lock);
-	status = acpi_evaluate_object(acpi_battery_handle(battery), "_BIF",
-				      NULL, &buffer);
-	mutex_unlock(&battery->lock);
+
+	status =
+	    acpi_evaluate_object(acpi_battery_handle(battery), "_BIF", NULL,
+				 &buffer);
 	if (ACPI_FAILURE(status)) {
 		ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BIF"));
 		return -ENODEV;
@@ -286,10 +285,10 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
 		return 0;
 
 	/* Evaluate _BST */
-	mutex_lock(&battery->lock);
-	status = acpi_evaluate_object(acpi_battery_handle(battery), "_BST",
-				      NULL, &buffer);
-	mutex_unlock(&battery->lock);
+
+	status =
+	    acpi_evaluate_object(acpi_battery_handle(battery), "_BST", NULL,
+				 &buffer);
 	if (ACPI_FAILURE(status)) {
 		ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BST"));
 		return -ENODEV;
@@ -337,10 +336,9 @@ static int acpi_battery_set_alarm(struct acpi_battery *battery,
 
 	arg0.integer.value = alarm;
 
-	mutex_lock(&battery->lock);
-	status = acpi_evaluate_object(acpi_battery_handle(battery), "_BTP",
+	status =
+	    acpi_evaluate_object(acpi_battery_handle(battery), "_BTP",
 				 &arg_list, NULL);
-	mutex_unlock(&battery->lock);
 	if (ACPI_FAILURE(status))
 		return -ENODEV;
 
@@ -660,6 +658,8 @@ 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;
@@ -688,7 +688,9 @@ acpi_battery_write_alarm(struct file *file,
 	acpi_battery_check_result(battery, result);
 
 	if (!result)
-		return count;
+		result = count;
+
+	mutex_unlock(&battery->mutex);
 
 	return result;
 }
@@ -712,6 +714,8 @@ 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]);
 
@@ -729,6 +733,7 @@ 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;
 }
 
@@ -867,8 +872,11 @@ static void acpi_battery_notify(acpi_handle handle, u32 event, void *data)
 	case ACPI_NOTIFY_DEVICE_CHECK:
 		device = battery->device;
 		acpi_battery_notify_update(battery);
-		acpi_bus_generate_event(device, event,
+		acpi_bus_generate_proc_event(device, event,
 					acpi_battery_present(battery));
+		acpi_bus_generate_netlink_event(device->pnp.device_class,
+						  device->dev.bus_id, event,
+						  acpi_battery_present(battery));
 		break;
 	default:
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
@@ -892,7 +900,10 @@ static int acpi_battery_add(struct acpi_device *device)
 	if (!battery)
 		return -ENOMEM;
 
-	mutex_init(&battery->lock);
+	mutex_init(&battery->mutex);
+
+	mutex_lock(&battery->mutex);
+
 	battery->device = device;
 	strcpy(acpi_device_name(device), ACPI_BATTERY_DEVICE_NAME);
 	strcpy(acpi_device_class(device), ACPI_BATTERY_CLASS);
@@ -928,6 +939,7 @@ static int acpi_battery_add(struct acpi_device *device)
 		kfree(battery);
 	}
 
+	mutex_unlock(&battery->mutex);
 
 	return result;
 }
@@ -942,6 +954,8 @@ 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);
@@ -952,7 +966,9 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
 
 	kfree(battery->bst_data.pointer);
 
-	mutex_destroy(&battery->lock);
+	mutex_unlock(&battery->mutex);
+
+	mutex_destroy(&battery->mutex);
 
 	kfree(battery);
 
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 6b2658c96242..9ba778a2b484 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -276,6 +276,7 @@ EXPORT_SYMBOL(acpi_bus_set_power);
                                 Event Management
    -------------------------------------------------------------------------- */
 
+#ifdef CONFIG_ACPI_PROC_EVENT
 static DEFINE_SPINLOCK(acpi_bus_event_lock);
 
 LIST_HEAD(acpi_bus_event_list);
@@ -283,7 +284,7 @@ DECLARE_WAIT_QUEUE_HEAD(acpi_bus_event_queue);
 
 extern int event_is_open;
 
-int acpi_bus_generate_event(struct acpi_device *device, u8 type, int data)
+int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data)
 {
 	struct acpi_bus_event *event = NULL;
 	unsigned long flags = 0;
@@ -292,10 +293,6 @@ int acpi_bus_generate_event(struct acpi_device *device, u8 type, int data)
 	if (!device)
 		return -EINVAL;
 
-	if (acpi_bus_generate_genetlink_event(device, type, data))
-		printk(KERN_WARNING PREFIX
-			"Failed to generate an ACPI event via genetlink!\n");
-
 	/* drop event on the floor if no one's listening */
 	if (!event_is_open)
 		return 0;
@@ -318,7 +315,7 @@ int acpi_bus_generate_event(struct acpi_device *device, u8 type, int data)
 	return 0;
 }
 
-EXPORT_SYMBOL(acpi_bus_generate_event);
+EXPORT_SYMBOL(acpi_bus_generate_proc_event);
 
 int acpi_bus_receive_event(struct acpi_bus_event *event)
 {
@@ -364,6 +361,7 @@ int acpi_bus_receive_event(struct acpi_bus_event *event)
 }
 
 EXPORT_SYMBOL(acpi_bus_receive_event);
+#endif	/* CONFIG_ACPI_PROC_EVENT */
 
 /* --------------------------------------------------------------------------
                              Notification Handling
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index 540581338ef5..2e79a3395ecf 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -284,7 +284,7 @@ static void acpi_button_notify(acpi_handle handle, u32 event, void *data)
 		}
 		input_sync(input);
 
-		acpi_bus_generate_event(button->device, event,
+		acpi_bus_generate_proc_event(button->device, event,
 					++button->pushed);
 		break;
 	default:
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 56bee9e065cf..43749c86861f 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -696,14 +696,6 @@ ec_parse_device(acpi_handle handle, u32 Level, void *context, void **retval)
 	return AE_CTRL_TERMINATE;
 }
 
-static void ec_remove_handlers(struct acpi_ec *ec)
-{
-	acpi_remove_address_space_handler(ec->handle,
-					  ACPI_ADR_SPACE_EC,
-					  &acpi_ec_space_handler);
-	acpi_remove_gpe_handler(NULL, ec->gpe, &acpi_ec_gpe_handler);
-}
-
 static int acpi_ec_add(struct acpi_device *device)
 {
 	struct acpi_ec *ec = NULL;
@@ -727,13 +719,16 @@ static int acpi_ec_add(struct acpi_device *device)
 	/* Check if we found the boot EC */
 	if (boot_ec) {
 		if (boot_ec->gpe == ec->gpe) {
-			ec_remove_handlers(boot_ec);
-			mutex_destroy(&boot_ec->lock);
-			kfree(boot_ec);
-			first_ec = boot_ec = NULL;
+			/* We might have incorrect info for GL at boot time */
+			mutex_lock(&boot_ec->lock);
+			boot_ec->global_lock = ec->global_lock;
+			/* Copy handlers from new ec into boot ec */
+			list_splice(&ec->list, &boot_ec->list);
+			mutex_unlock(&boot_ec->lock);
+			kfree(ec);
+			ec = boot_ec;
 		}
-	}
-	if (!first_ec)
+	} else
 		first_ec = ec;
 	ec->handle = device->handle;
 	acpi_driver_data(device) = ec;
@@ -762,6 +757,9 @@ static int acpi_ec_remove(struct acpi_device *device, int type)
 	if (ec == first_ec)
 		first_ec = NULL;
 
+	/* Don't touch boot EC */
+	if (boot_ec != ec)
+		kfree(ec);
 	return 0;
 }
 
@@ -825,7 +823,9 @@ static int acpi_ec_start(struct acpi_device *device)
 	if (!ec)
 		return -EINVAL;
 
-	ret = ec_install_handlers(ec);
+	/* Boot EC is already working */
+	if (ec != boot_ec)
+		ret = ec_install_handlers(ec);
 
 	/* EC is fully operational, allow queries */
 	atomic_set(&ec->query_pending, 0);
@@ -835,6 +835,7 @@ static int acpi_ec_start(struct acpi_device *device)
 
 static int acpi_ec_stop(struct acpi_device *device, int type)
 {
+	acpi_status status;
 	struct acpi_ec *ec;
 
 	if (!device)
@@ -843,7 +844,21 @@ static int acpi_ec_stop(struct acpi_device *device, int type)
 	ec = acpi_driver_data(device);
 	if (!ec)
 		return -EINVAL;
-	ec_remove_handlers(ec);
+
+	/* Don't touch boot EC */
+	if (ec == boot_ec)
+		return 0;
+
+	status = acpi_remove_address_space_handler(ec->handle,
+						   ACPI_ADR_SPACE_EC,
+						   &acpi_ec_space_handler);
+	if (ACPI_FAILURE(status))
+		return -ENODEV;
+
+	status = acpi_remove_gpe_handler(NULL, ec->gpe, &acpi_ec_gpe_handler);
+	if (ACPI_FAILURE(status))
+		return -ENODEV;
+
 	return 0;
 }
 
diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c
index 95637a4ff782..a2b9304596ce 100644
--- a/drivers/acpi/event.c
+++ b/drivers/acpi/event.c
@@ -17,6 +17,7 @@
 #define _COMPONENT		ACPI_SYSTEM_COMPONENT
 ACPI_MODULE_NAME("event");
 
+#ifdef CONFIG_ACPI_PROC_EVENT
 /* Global vars for handling event proc entry */
 static DEFINE_SPINLOCK(acpi_system_event_lock);
 int event_is_open = 0;
@@ -106,6 +107,7 @@ static const struct file_operations acpi_system_event_ops = {
 	.release = acpi_system_close_event,
 	.poll = acpi_system_poll_event,
 };
+#endif	/* CONFIG_ACPI_PROC_EVENT */
 
 #ifdef CONFIG_NET
 static unsigned int acpi_event_seqnum;
@@ -147,7 +149,8 @@ static struct genl_multicast_group acpi_event_mcgrp = {
 	.name = ACPI_GENL_MCAST_GROUP_NAME,
 };
 
-int acpi_bus_generate_genetlink_event(struct acpi_device *device,
+int acpi_bus_generate_netlink_event(const char *device_class,
+				      const char *bus_id,
 				      u8 type, int data)
 {
 	struct sk_buff *skb;
@@ -191,8 +194,8 @@ int acpi_bus_generate_genetlink_event(struct acpi_device *device,
 
 	memset(event, 0, sizeof(struct acpi_genl_event));
 
-	strcpy(event->device_class, device->pnp.device_class);
-	strcpy(event->bus_id, device->dev.bus_id);
+	strcpy(event->device_class, device_class);
+	strcpy(event->bus_id, bus_id);
 	event->type = type;
 	event->data = data;
 
@@ -211,6 +214,8 @@ int acpi_bus_generate_genetlink_event(struct acpi_device *device,
 	return 0;
 }
 
+EXPORT_SYMBOL(acpi_bus_generate_netlink_event);
+
 static int acpi_event_genetlink_init(void)
 {
 	int result;
@@ -228,12 +233,15 @@ static int acpi_event_genetlink_init(void)
 }
 
 #else
-int acpi_bus_generate_genetlink_event(struct acpi_device *device, u8 type,
-				      int data)
+int acpi_bus_generate_netlink_event(const char *device_class,
+				      const char *bus_id,
+				      u8 type, int data)
 {
 	return 0;
 }
 
+EXPORT_SYMBOL(acpi_generate_netlink_event);
+
 static int acpi_event_genetlink_init(void)
 {
 	return -ENODEV;
@@ -242,7 +250,9 @@ static int acpi_event_genetlink_init(void)
 
 static int __init acpi_event_init(void)
 {
+#ifdef CONFIG_ACPI_PROC_EVENT
 	struct proc_dir_entry *entry;
+#endif
 	int error = 0;
 
 	if (acpi_disabled)
@@ -254,12 +264,14 @@ static int __init acpi_event_init(void)
 		printk(KERN_WARNING PREFIX
 		       "Failed to create genetlink family for ACPI event\n");
 
+#ifdef CONFIG_ACPI_PROC_EVENT
 	/* 'event' [R] */
 	entry = create_proc_entry("event", S_IRUSR, acpi_root_dir);
 	if (entry)
 		entry->proc_fops = &acpi_system_event_ops;
 	else
 		return -ENODEV;
+#endif
 
 	return 0;
 }
diff --git a/drivers/acpi/hardware/hwsleep.c b/drivers/acpi/hardware/hwsleep.c
index 76c525dc590b..cf69c0040a39 100644
--- a/drivers/acpi/hardware/hwsleep.c
+++ b/drivers/acpi/hardware/hwsleep.c
@@ -576,13 +576,10 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state)
 		ACPI_EXCEPTION((AE_INFO, status, "During Method _BFS"));
 	}
 
-	status = acpi_evaluate_object(NULL, METHOD_NAME__WAK, &arg_list, NULL);
-	if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
-		ACPI_EXCEPTION((AE_INFO, status, "During Method _WAK"));
-	}
-	/* TBD: _WAK "sometimes" returns stuff - do we want to look at it? */
-
 	/*
+	 * GPEs must be enabled before _WAK is called as GPEs
+	 * might get fired there
+	 *
 	 * Restore the GPEs:
 	 * 1) Disable/Clear all GPEs
 	 * 2) Enable all runtime GPEs
@@ -591,13 +588,19 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state)
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
 	}
-	acpi_gbl_system_awake_and_running = TRUE;
-
 	status = acpi_hw_enable_all_runtime_gpes();
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
 	}
 
+	status = acpi_evaluate_object(NULL, METHOD_NAME__WAK, &arg_list, NULL);
+	if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
+		ACPI_EXCEPTION((AE_INFO, status, "During Method _WAK"));
+	}
+	/* TBD: _WAK "sometimes" returns stuff - do we want to look at it? */
+
+	acpi_gbl_system_awake_and_running = TRUE;
+
 	/* Enable power button */
 
 	(void)
diff --git a/drivers/acpi/namespace/nsxfeval.c b/drivers/acpi/namespace/nsxfeval.c
index ab65b2c2560e..f39fbc6b9237 100644
--- a/drivers/acpi/namespace/nsxfeval.c
+++ b/drivers/acpi/namespace/nsxfeval.c
@@ -540,7 +540,7 @@ acpi_ns_get_device_callback(acpi_handle obj_handle,
  ******************************************************************************/
 
 acpi_status
-acpi_get_devices(char *HID,
+acpi_get_devices(const char *HID,
 		 acpi_walk_callback user_function,
 		 void *context, void **return_value)
 {
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index 498422343f38..e944aaee4e06 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -698,16 +698,23 @@ static void acpi_processor_notify(acpi_handle handle, u32 event, void *data)
 	switch (event) {
 	case ACPI_PROCESSOR_NOTIFY_PERFORMANCE:
 		acpi_processor_ppc_has_changed(pr);
-		acpi_bus_generate_event(device, event,
+		acpi_bus_generate_proc_event(device, event,
 					pr->performance_platform_limit);
+		acpi_bus_generate_netlink_event(device->pnp.device_class,
+						  device->dev.bus_id, event,
+						  pr->performance_platform_limit);
 		break;
 	case ACPI_PROCESSOR_NOTIFY_POWER:
 		acpi_processor_cst_has_changed(pr);
-		acpi_bus_generate_event(device, event, 0);
+		acpi_bus_generate_proc_event(device, event, 0);
+		acpi_bus_generate_netlink_event(device->pnp.device_class,
+						  device->dev.bus_id, event, 0);
 		break;
 	case ACPI_PROCESSOR_NOTIFY_THROTTLING:
 		acpi_processor_tstate_has_changed(pr);
-		acpi_bus_generate_event(device, event, 0);
+		acpi_bus_generate_proc_event(device, event, 0);
+		acpi_bus_generate_netlink_event(device->pnp.device_class,
+						  device->dev.bus_id, event, 0);
 	default:
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "Unsupported event [0x%x]\n", event));
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index 82c3a550016d..a578986e3214 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -440,11 +440,12 @@ static int acpi_sbs_generate_event(struct acpi_device *device,
 	strcpy(acpi_device_bid(device), bid);
 	strcpy(acpi_device_class(device), class);
 
-	result = acpi_bus_generate_event(device, event, state);
+	result = acpi_bus_generate_proc_event(device, event, state);
 
 	strcpy(acpi_device_bid(device), bid_saved);
 	strcpy(acpi_device_class(device), class_saved);
 
+	acpi_bus_generate_netlink_event(class, bid, event, state);
 	return result;
 }
 
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index be74347d1354..64620d668742 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -35,8 +35,9 @@ struct acpi_device_bus_id{
  * e.g. on a device with hid:IBM0001 and cid:ACPI0001 you get:
  * char *modalias: "acpi:IBM0001:ACPI0001"
 */
-int create_modalias(struct acpi_device *acpi_dev, char *modalias, int size){
-
+static int create_modalias(struct acpi_device *acpi_dev, char *modalias,
+			   int size)
+{
 	int len;
 
 	if (!acpi_dev->flags.hardware_id)
diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c
index e8cff5dd4cbc..c52ade816fb4 100644
--- a/drivers/acpi/sleep/main.c
+++ b/drivers/acpi/sleep/main.c
@@ -305,7 +305,7 @@ int acpi_pm_device_sleep_state(struct device *dev, int wake, int *d_min_p)
 	unsigned long d_min, d_max;
 
 	if (!handle || ACPI_FAILURE(acpi_bus_get_device(handle, &adev))) {
-		printk(KERN_ERR "ACPI handle has no context!\n");
+		printk(KERN_DEBUG "ACPI handle has no context!\n");
 		return -ENODEV;
 	}
 
diff --git a/drivers/acpi/tables/tbutils.c b/drivers/acpi/tables/tbutils.c
index 1da64b4518c0..8cc9492ffbf2 100644
--- a/drivers/acpi/tables/tbutils.c
+++ b/drivers/acpi/tables/tbutils.c
@@ -51,6 +51,65 @@ ACPI_MODULE_NAME("tbutils")
 static acpi_physical_address
 acpi_tb_get_root_table_entry(u8 * table_entry,
 			     acpi_native_uint table_entry_size);
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_check_xsdt
+ *
+ * PARAMETERS:  address                    - Pointer to the XSDT
+ *
+ * RETURN:      status
+ *		AE_OK - XSDT is okay
+ *		AE_NO_MEMORY - can't map XSDT
+ *		AE_INVALID_TABLE_LENGTH - invalid table length
+ *		AE_NULL_ENTRY - XSDT has NULL entry
+ *
+ * DESCRIPTION: validate XSDT
+******************************************************************************/
+
+static acpi_status
+acpi_tb_check_xsdt(acpi_physical_address address)
+{
+	struct acpi_table_header *table;
+	u32 length;
+	u64 xsdt_entry_address;
+	u8 *table_entry;
+	u32 table_count;
+	int i;
+
+	table = acpi_os_map_memory(address, sizeof(struct acpi_table_header));
+	if (!table)
+		return AE_NO_MEMORY;
+
+	length = table->length;
+	acpi_os_unmap_memory(table, sizeof(struct acpi_table_header));
+	if (length < sizeof(struct acpi_table_header))
+		return AE_INVALID_TABLE_LENGTH;
+
+	table = acpi_os_map_memory(address, length);
+	if (!table)
+		return AE_NO_MEMORY;
+
+	/* Calculate the number of tables described in XSDT */
+	table_count =
+		(u32) ((table->length -
+		sizeof(struct acpi_table_header)) / sizeof(u64));
+	table_entry =
+		ACPI_CAST_PTR(u8, table) + sizeof(struct acpi_table_header);
+	for (i = 0; i < table_count; i++) {
+		ACPI_MOVE_64_TO_64(&xsdt_entry_address, table_entry);
+		if (!xsdt_entry_address) {
+			/* XSDT has NULL entry */
+			break;
+		}
+		table_entry += sizeof(u64);
+	}
+	acpi_os_unmap_memory(table, length);
+
+	if (i < table_count)
+		return AE_NULL_ENTRY;
+	else
+		return AE_OK;
+}
 
 /*******************************************************************************
  *
@@ -341,6 +400,7 @@ acpi_tb_parse_root_table(acpi_physical_address rsdp_address, u8 flags)
 	u32 table_count;
 	struct acpi_table_header *table;
 	acpi_physical_address address;
+	acpi_physical_address rsdt_address;
 	u32 length;
 	u8 *table_entry;
 	acpi_status status;
@@ -369,6 +429,8 @@ acpi_tb_parse_root_table(acpi_physical_address rsdp_address, u8 flags)
 		 */
 		address = (acpi_physical_address) rsdp->xsdt_physical_address;
 		table_entry_size = sizeof(u64);
+		rsdt_address = (acpi_physical_address)
+					rsdp->rsdt_physical_address;
 	} else {
 		/* Root table is an RSDT (32-bit physical addresses) */
 
@@ -382,6 +444,15 @@ acpi_tb_parse_root_table(acpi_physical_address rsdp_address, u8 flags)
 	 */
 	acpi_os_unmap_memory(rsdp, sizeof(struct acpi_table_rsdp));
 
+	if (table_entry_size == sizeof(u64)) {
+		if (acpi_tb_check_xsdt(address) == AE_NULL_ENTRY) {
+			/* XSDT has NULL entry, RSDT is used */
+			address = rsdt_address;
+			table_entry_size = sizeof(u32);
+			ACPI_WARNING((AE_INFO, "BIOS XSDT has NULL entry,"
+					"using RSDT"));
+		}
+	}
 	/* Map the RSDT/XSDT table header to get the full table length */
 
 	table = acpi_os_map_memory(address, sizeof(struct acpi_table_header));
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 1e06159fd9c4..bc6d5866ef98 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -77,23 +77,27 @@ MODULE_LICENSE("GPL");
 
 static int act;
 module_param(act, int, 0644);
-MODULE_PARM_DESC(act, "Disable or override all lowest active trip points.\n");
+MODULE_PARM_DESC(act, "Disable or override all lowest active trip points.");
+
+static int crt;
+module_param(crt, int, 0644);
+MODULE_PARM_DESC(crt, "Disable or lower all critical trip points.");
 
 static int tzp;
 module_param(tzp, int, 0444);
-MODULE_PARM_DESC(tzp, "Thermal zone polling frequency, in 1/10 seconds.\n");
+MODULE_PARM_DESC(tzp, "Thermal zone polling frequency, in 1/10 seconds.");
 
 static int nocrt;
 module_param(nocrt, int, 0);
-MODULE_PARM_DESC(nocrt, "Set to disable action on ACPI thermal zone critical and hot trips.\n");
+MODULE_PARM_DESC(nocrt, "Set to take no action upon ACPI thermal zone critical trips points.");
 
 static int off;
 module_param(off, int, 0);
-MODULE_PARM_DESC(off, "Set to disable ACPI thermal support.\n");
+MODULE_PARM_DESC(off, "Set to disable ACPI thermal support.");
 
 static int psv;
 module_param(psv, int, 0644);
-MODULE_PARM_DESC(psv, "Disable or override all passive trip points.\n");
+MODULE_PARM_DESC(psv, "Disable or override all passive trip points.");
 
 static int acpi_thermal_add(struct acpi_device *device);
 static int acpi_thermal_remove(struct acpi_device *device, int type);
@@ -340,6 +344,20 @@ static int acpi_thermal_get_trip_points(struct acpi_thermal *tz)
 				  tz->trips.critical.temperature));
 	}
 
+	if (tz->trips.critical.flags.valid == 1) {
+		if (crt == -1) {
+			tz->trips.critical.flags.valid = 0;
+		} else if (crt > 0) {
+			unsigned long crt_k = CELSIUS_TO_KELVIN(crt);
+
+			/*
+			 * Allow override to lower critical threshold
+			 */
+			if (crt_k < tz->trips.critical.temperature)
+				tz->trips.critical.temperature = crt_k;
+		}
+	}
+
 	/* Critical Sleep (optional) */
 
 	status =
@@ -485,8 +503,12 @@ static int acpi_thermal_critical(struct acpi_thermal *tz)
 	printk(KERN_EMERG
 	       "Critical temperature reached (%ld C), shutting down.\n",
 	       KELVIN_TO_CELSIUS(tz->temperature));
-	acpi_bus_generate_event(tz->device, ACPI_THERMAL_NOTIFY_CRITICAL,
+	acpi_bus_generate_proc_event(tz->device, ACPI_THERMAL_NOTIFY_CRITICAL,
 				tz->trips.critical.flags.enabled);
+	acpi_bus_generate_netlink_event(tz->device->pnp.device_class,
+					  tz->device->dev.bus_id,
+					  ACPI_THERMAL_NOTIFY_CRITICAL,
+					  tz->trips.critical.flags.enabled);
 
 	orderly_poweroff(true);
 
@@ -504,8 +526,12 @@ static int acpi_thermal_hot(struct acpi_thermal *tz)
 	} else if (tz->trips.hot.flags.enabled)
 		tz->trips.hot.flags.enabled = 0;
 
-	acpi_bus_generate_event(tz->device, ACPI_THERMAL_NOTIFY_HOT,
+	acpi_bus_generate_proc_event(tz->device, ACPI_THERMAL_NOTIFY_HOT,
 				tz->trips.hot.flags.enabled);
+	acpi_bus_generate_netlink_event(tz->device->pnp.device_class,
+					  tz->device->dev.bus_id,
+					  ACPI_THERMAL_NOTIFY_HOT,
+					  tz->trips.hot.flags.enabled);
 
 	/* TBD: Call user-mode "sleep(S4)" function */
 
@@ -1067,9 +1093,9 @@ static int acpi_thermal_add_fs(struct acpi_device *device)
 		entry->owner = THIS_MODULE;
 	}
 
-	/* 'trip_points' [R/W] */
+	/* 'trip_points' [R] */
 	entry = create_proc_entry(ACPI_THERMAL_FILE_TRIP_POINTS,
-				  S_IFREG | S_IRUGO | S_IWUSR,
+				  S_IRUGO,
 				  acpi_device_dir(device));
 	if (!entry)
 		return -ENODEV;
@@ -1149,12 +1175,16 @@ static void acpi_thermal_notify(acpi_handle handle, u32 event, void *data)
 	case ACPI_THERMAL_NOTIFY_THRESHOLDS:
 		acpi_thermal_get_trip_points(tz);
 		acpi_thermal_check(tz);
-		acpi_bus_generate_event(device, event, 0);
+		acpi_bus_generate_proc_event(device, event, 0);
+		acpi_bus_generate_netlink_event(device->pnp.device_class,
+						  device->dev.bus_id, event, 0);
 		break;
 	case ACPI_THERMAL_NOTIFY_DEVICES:
 		if (tz->flags.devices)
 			acpi_thermal_get_devices(tz);
-		acpi_bus_generate_event(device, event, 0);
+		acpi_bus_generate_proc_event(device, event, 0);
+		acpi_bus_generate_netlink_event(device->pnp.device_class,
+						  device->dev.bus_id, event, 0);
 		break;
 	default:
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
@@ -1339,6 +1369,13 @@ static int thermal_act(struct dmi_system_id *d) {
 	}
 	return 0;
 }
+static int thermal_nocrt(struct dmi_system_id *d) {
+
+	printk(KERN_NOTICE "ACPI: %s detected: "
+		"disabling all critical thermal trip point actions.\n", d->ident);
+	nocrt = 1;
+	return 0;
+}
 static int thermal_tzp(struct dmi_system_id *d) {
 
 	if (tzp == 0) {
@@ -1387,6 +1424,14 @@ static struct dmi_system_id thermal_dmi_table[] __initdata = {
 		DMI_MATCH(DMI_BOARD_NAME, "i915GMm-HFS"),
 		},
 	},
+	{
+	 .callback = thermal_nocrt,
+	 .ident = "Gigabyte GA-7ZX",
+	 .matches = {
+		DMI_MATCH(DMI_BOARD_VENDOR, "Gigabyte Technology Co., Ltd."),
+		DMI_MATCH(DMI_BOARD_NAME, "7ZX"),
+		},
+	},
 	{}
 };
 #endif /* CONFIG_DMI */
diff --git a/drivers/acpi/utilities/utglobal.c b/drivers/acpi/utilities/utglobal.c
index 1621655d6e2b..93ea8290b4f7 100644
--- a/drivers/acpi/utilities/utglobal.c
+++ b/drivers/acpi/utilities/utglobal.c
@@ -126,6 +126,7 @@ const char *acpi_format_exception(acpi_status status)
 			    "Unknown exception code: 0x%8.8X", status));
 
 		exception = "UNKNOWN_STATUS_CODE";
+		dump_stack();
 	}
 
 	return (ACPI_CAST_PTR(const char, exception));
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index d98701941981..3c9bb85a6a93 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -31,7 +31,7 @@
 #include <linux/list.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
-
+#include <linux/input.h>
 #include <linux/backlight.h>
 #include <linux/video_output.h>
 #include <asm/uaccess.h>
@@ -138,6 +138,8 @@ struct acpi_video_bus {
 	struct semaphore sem;
 	struct list_head video_device_list;
 	struct proc_dir_entry *dir;
+	struct input_dev *input;
+	char phys[32];	/* for input device */
 };
 
 struct acpi_video_device_flags {
@@ -1764,6 +1766,9 @@ static void acpi_video_bus_notify(acpi_handle handle, u32 event, void *data)
 {
 	struct acpi_video_bus *video = data;
 	struct acpi_device *device = NULL;
+	struct input_dev *input;
+	int keycode;
+
 
 	printk("video bus notify\n");
 
@@ -1771,11 +1776,13 @@ static void acpi_video_bus_notify(acpi_handle handle, u32 event, void *data)
 		return;
 
 	device = video->device;
+	input = video->input;
 
 	switch (event) {
 	case ACPI_VIDEO_NOTIFY_SWITCH:	/* User requested a switch,
 					 * most likely via hotkey. */
-		acpi_bus_generate_event(device, event, 0);
+		acpi_bus_generate_proc_event(device, event, 0);
+		keycode = KEY_SWITCHVIDEOMODE;
 		break;
 
 	case ACPI_VIDEO_NOTIFY_PROBE:	/* User plugged in or removed a video
@@ -1783,22 +1790,38 @@ static void acpi_video_bus_notify(acpi_handle handle, u32 event, void *data)
 		acpi_video_device_enumerate(video);
 		acpi_video_device_rebind(video);
 		acpi_video_switch_output(video, event);
-		acpi_bus_generate_event(device, event, 0);
+		acpi_bus_generate_proc_event(device, event, 0);
+		keycode = KEY_SWITCHVIDEOMODE;
 		break;
 
 	case ACPI_VIDEO_NOTIFY_CYCLE:	/* Cycle Display output hotkey pressed. */
+		acpi_video_switch_output(video, event);
+		acpi_bus_generate_proc_event(device, event, 0);
+		keycode = KEY_SWITCHVIDEOMODE;
+		break;
 	case ACPI_VIDEO_NOTIFY_NEXT_OUTPUT:	/* Next Display output hotkey pressed. */
+		acpi_video_switch_output(video, event);
+		acpi_bus_generate_proc_event(device, event, 0);
+		keycode = KEY_VIDEO_NEXT;
+		break;
 	case ACPI_VIDEO_NOTIFY_PREV_OUTPUT:	/* previous Display output hotkey pressed. */
 		acpi_video_switch_output(video, event);
-		acpi_bus_generate_event(device, event, 0);
+		acpi_bus_generate_proc_event(device, event, 0);
+		keycode = KEY_VIDEO_PREV;
 		break;
 
 	default:
+		keycode = KEY_UNKNOWN;
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "Unsupported event [0x%x]\n", event));
 		break;
 	}
 
+	input_report_key(input, keycode, 1);
+	input_sync(input);
+	input_report_key(input, keycode, 0);
+	input_sync(input);
+
 	return;
 }
 
@@ -1806,38 +1829,65 @@ static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data)
 {
 	struct acpi_video_device *video_device = data;
 	struct acpi_device *device = NULL;
+	struct acpi_video_bus *bus;
+	struct input_dev *input;
+	int keycode;
 
 	if (!video_device)
 		return;
 
 	device = video_device->dev;
+	bus = video_device->video;
+	input = bus->input;
 
 	switch (event) {
-	case ACPI_VIDEO_NOTIFY_SWITCH:	/* change in status (cycle output device) */
-	case ACPI_VIDEO_NOTIFY_PROBE:	/* change in status (output device status) */
-		acpi_bus_generate_event(device, event, 0);
-		break;
 	case ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS:	/* Cycle brightness */
+		acpi_video_switch_brightness(video_device, event);
+		acpi_bus_generate_proc_event(device, event, 0);
+		keycode = KEY_BRIGHTNESS_CYCLE;
+		break;
 	case ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS:	/* Increase brightness */
+		acpi_video_switch_brightness(video_device, event);
+		acpi_bus_generate_proc_event(device, event, 0);
+		keycode = KEY_BRIGHTNESSUP;
+		break;
 	case ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS:	/* Decrease brightness */
+		acpi_video_switch_brightness(video_device, event);
+		acpi_bus_generate_proc_event(device, event, 0);
+		keycode = KEY_BRIGHTNESSDOWN;
+		break;
 	case ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS:	/* zero brightnesss */
+		acpi_video_switch_brightness(video_device, event);
+		acpi_bus_generate_proc_event(device, event, 0);
+		keycode = KEY_BRIGHTNESS_ZERO;
+		break;
 	case ACPI_VIDEO_NOTIFY_DISPLAY_OFF:	/* display device off */
 		acpi_video_switch_brightness(video_device, event);
-		acpi_bus_generate_event(device, event, 0);
+		acpi_bus_generate_proc_event(device, event, 0);
+		keycode = KEY_DISPLAY_OFF;
 		break;
 	default:
+		keycode = KEY_UNKNOWN;
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "Unsupported event [0x%x]\n", event));
 		break;
 	}
+
+	input_report_key(input, keycode, 1);
+	input_sync(input);
+	input_report_key(input, keycode, 0);
+	input_sync(input);
+
 	return;
 }
 
+static int instance;
 static int acpi_video_bus_add(struct acpi_device *device)
 {
 	int result = 0;
 	acpi_status status = 0;
 	struct acpi_video_bus *video = NULL;
+	struct input_dev *input;
 
 
 	if (!device)
@@ -1847,6 +1897,13 @@ static int acpi_video_bus_add(struct acpi_device *device)
 	if (!video)
 		return -ENOMEM;
 
+	/* a hack to fix the duplicate name "VID" problem on T61 */
+	if (!strcmp(device->pnp.bus_id, "VID")) {
+		if (instance)
+			device->pnp.bus_id[3] = '0' + instance;
+		instance ++;
+	}
+
 	video->device = device;
 	strcpy(acpi_device_name(device), ACPI_VIDEO_BUS_NAME);
 	strcpy(acpi_device_class(device), ACPI_VIDEO_CLASS);
@@ -1881,6 +1938,39 @@ static int acpi_video_bus_add(struct acpi_device *device)
 		goto end;
 	}
 
+
+	video->input = input = input_allocate_device();
+
+	snprintf(video->phys, sizeof(video->phys),
+		"%s/video/input0", acpi_device_hid(video->device));
+
+	input->name = acpi_device_name(video->device);
+	input->phys = video->phys;
+	input->id.bustype = BUS_HOST;
+	input->id.product = 0x06;
+	input->evbit[0] = BIT(EV_KEY);
+	set_bit(KEY_SWITCHVIDEOMODE, input->keybit);
+	set_bit(KEY_VIDEO_NEXT, input->keybit);
+	set_bit(KEY_VIDEO_PREV, input->keybit);
+	set_bit(KEY_BRIGHTNESS_CYCLE, input->keybit);
+	set_bit(KEY_BRIGHTNESSUP, input->keybit);
+	set_bit(KEY_BRIGHTNESSDOWN, input->keybit);
+	set_bit(KEY_BRIGHTNESS_ZERO, input->keybit);
+	set_bit(KEY_DISPLAY_OFF, input->keybit);
+	set_bit(KEY_UNKNOWN, input->keybit);
+	result = input_register_device(input);
+	if (result) {
+		acpi_remove_notify_handler(video->device->handle,
+						ACPI_DEVICE_NOTIFY,
+						acpi_video_bus_notify);
+		acpi_video_bus_stop_devices(video);
+		acpi_video_bus_put_devices(video);
+		kfree(video->attached_array);
+		acpi_video_bus_remove_fs(device);
+		goto end;
+        }
+
+
 	printk(KERN_INFO PREFIX "%s [%s] (multi-head: %s  rom: %s  post: %s)\n",
 	       ACPI_VIDEO_DEVICE_NAME, acpi_device_bid(device),
 	       video->flags.multihead ? "yes" : "no",
@@ -1914,6 +2004,7 @@ static int acpi_video_bus_remove(struct acpi_device *device, int type)
 	acpi_video_bus_put_devices(video);
 	acpi_video_bus_remove_fs(device);
 
+	input_unregister_device(video->input);
 	kfree(video->attached_array);
 	kfree(video);
 
diff --git a/drivers/char/sonypi.c b/drivers/char/sonypi.c
index aeec67e27264..859858561ab6 100644
--- a/drivers/char/sonypi.c
+++ b/drivers/char/sonypi.c
@@ -875,7 +875,7 @@ found:
 
 #ifdef CONFIG_ACPI
 	if (sonypi_acpi_device)
-		acpi_bus_generate_event(sonypi_acpi_device, 1, event);
+		acpi_bus_generate_proc_event(sonypi_acpi_device, 1, event);
 #endif
 
 	kfifo_put(sonypi_device.fifo, (unsigned char *)&event, sizeof(event));
diff --git a/drivers/misc/asus-laptop.c b/drivers/misc/asus-laptop.c
index d0fc4fd212e6..7dce318df1bd 100644
--- a/drivers/misc/asus-laptop.c
+++ b/drivers/misc/asus-laptop.c
@@ -732,7 +732,7 @@ static void asus_hotk_notify(acpi_handle handle, u32 event, void *data)
 		lcd_blank(FB_BLANK_POWERDOWN);
 	}
 
-	acpi_bus_generate_event(hotk->device, event,
+	acpi_bus_generate_proc_event(hotk->device, event,
 				hotk->event_count[event % 128]++);
 
 	return;
@@ -1072,7 +1072,8 @@ static void asus_backlight_exit(void)
 }
 
 #define  ASUS_LED_UNREGISTER(object)				\
-	led_classdev_unregister(&object##_led)
+	if (object##_led.dev)					\
+		led_classdev_unregister(&object##_led)
 
 static void asus_led_exit(void)
 {
diff --git a/drivers/misc/sony-laptop.c b/drivers/misc/sony-laptop.c
index 91da6880ae93..d38ddce592c0 100644
--- a/drivers/misc/sony-laptop.c
+++ b/drivers/misc/sony-laptop.c
@@ -856,6 +856,15 @@ static struct dmi_system_id sony_nc_ids[] = {
 			},
 		},
 		{
+			.ident = "Sony Vaio FZ Series",
+			.callback = sony_nc_C_enable,
+			.driver_data = sony_C_events,
+			.matches = {
+				DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+				DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ"),
+			},
+		},
+		{
 			.ident = "Sony Vaio C Series",
 			.callback = sony_nc_C_enable,
 			.driver_data = sony_C_events,
@@ -904,7 +913,7 @@ static void sony_acpi_notify(acpi_handle handle, u32 event, void *data)
 
 	dprintk("sony_acpi_notify, event: 0x%.2x\n", ev);
 	sony_laptop_report_input_event(ev);
-	acpi_bus_generate_event(sony_nc_acpi_device, 1, ev);
+	acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
 }
 
 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
@@ -2292,7 +2301,7 @@ static irqreturn_t sony_pic_irq(int irq, void *dev_id)
 
 found:
 	sony_laptop_report_input_event(device_event);
-	acpi_bus_generate_event(spic_dev.acpi_dev, 1, device_event);
+	acpi_bus_generate_proc_event(spic_dev.acpi_dev, 1, device_event);
 	sonypi_compat_report_event(device_event);
 
 	return IRQ_HANDLED;
@@ -2308,8 +2317,6 @@ static int sony_pic_remove(struct acpi_device *device, int type)
 	struct sony_pic_ioport *io, *tmp_io;
 	struct sony_pic_irq *irq, *tmp_irq;
 
-	sonypi_compat_exit();
-
 	if (sony_pic_disable(device)) {
 		printk(KERN_ERR DRV_PFX "Couldn't disable device.\n");
 		return -ENXIO;
@@ -2319,6 +2326,8 @@ static int sony_pic_remove(struct acpi_device *device, int type)
 	release_region(spic_dev.cur_ioport->io.minimum,
 			spic_dev.cur_ioport->io.address_length);
 
+	sonypi_compat_exit();
+
 	sony_laptop_remove_input();
 
 	/* pf attrs */
@@ -2384,6 +2393,9 @@ static int sony_pic_add(struct acpi_device *device)
 		goto err_free_resources;
 	}
 
+	if (sonypi_compat_init())
+		goto err_remove_input;
+
 	/* request io port */
 	list_for_each_entry(io, &spic_dev.ioports, list) {
 		if (request_region(io->io.minimum, io->io.address_length,
@@ -2398,7 +2410,7 @@ static int sony_pic_add(struct acpi_device *device)
 	if (!spic_dev.cur_ioport) {
 		printk(KERN_ERR DRV_PFX "Failed to request_region.\n");
 		result = -ENODEV;
-		goto err_remove_input;
+		goto err_remove_compat;
 	}
 
 	/* request IRQ */
@@ -2438,9 +2450,6 @@ static int sony_pic_add(struct acpi_device *device)
 	if (result)
 		goto err_remove_pf;
 
-	if (sonypi_compat_init())
-		goto err_remove_pf;
-
 	return 0;
 
 err_remove_pf:
@@ -2456,6 +2465,9 @@ err_release_region:
 	release_region(spic_dev.cur_ioport->io.minimum,
 			spic_dev.cur_ioport->io.address_length);
 
+err_remove_compat:
+	sonypi_compat_exit();
+
 err_remove_input:
 	sony_laptop_remove_input();
 
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index f6cd34a3dbac..bb8956d0c104 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -1190,10 +1190,10 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
 		}
 
 		if (sendacpi)
-			acpi_bus_generate_event(ibm->acpi->device, event, hkey);
+			acpi_bus_generate_proc_event(ibm->acpi->device, event, hkey);
 	} else {
 		printk(IBM_ERR "unknown hotkey notification event %d\n", event);
-		acpi_bus_generate_event(ibm->acpi->device, event, 0);
+		acpi_bus_generate_proc_event(ibm->acpi->device, event, 0);
 	}
 }
 
@@ -2162,22 +2162,27 @@ static void dock_notify(struct ibm_struct *ibm, u32 event)
 	int docked = dock_docked();
 	int pci = ibm->acpi->hid && ibm->acpi->device &&
 		acpi_match_device_ids(ibm->acpi->device, ibm_pci_device_ids);
+	int data;
 
 	if (event == 1 && !pci)	/* 570 */
-		acpi_bus_generate_event(ibm->acpi->device, event, 1);	/* button */
+		data = 1;	/* button */
 	else if (event == 1 && pci)	/* 570 */
-		acpi_bus_generate_event(ibm->acpi->device, event, 3);	/* dock */
+		data = 3;	/* dock */
 	else if (event == 3 && docked)
-		acpi_bus_generate_event(ibm->acpi->device, event, 1);	/* button */
+		data = 1;	/* button */
 	else if (event == 3 && !docked)
-		acpi_bus_generate_event(ibm->acpi->device, event, 2);	/* undock */
+		data = 2;	/* undock */
 	else if (event == 0 && docked)
-		acpi_bus_generate_event(ibm->acpi->device, event, 3);	/* dock */
+		data = 3;	/* dock */
 	else {
 		printk(IBM_ERR "unknown dock event %d, status %d\n",
 		       event, _sta(dock_handle));
-		acpi_bus_generate_event(ibm->acpi->device, event, 0);	/* unknown */
+		data = 0;	/* unknown */
 	}
+	acpi_bus_generate_proc_event(ibm->acpi->device, event, data);
+	acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class,
+					  ibm->acpi->device->dev.bus_id,
+					  event, data);
 }
 
 static int dock_read(char *p)
@@ -2275,7 +2280,10 @@ static int __init bay_init(struct ibm_init_struct *iibm)
 
 static void bay_notify(struct ibm_struct *ibm, u32 event)
 {
-	acpi_bus_generate_event(ibm->acpi->device, event, 0);
+	acpi_bus_generate_proc_event(ibm->acpi->device, event, 0);
+	acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class,
+					  ibm->acpi->device->dev.bus_id,
+					  event, 0);
 }
 
 #define bay_occupied(b) (_sta(b##_handle) & 1)
diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c
index 70db38c0ced9..56829f82be4a 100644
--- a/drivers/pci/hotplug/acpiphp_ibm.c
+++ b/drivers/pci/hotplug/acpiphp_ibm.c
@@ -267,7 +267,10 @@ static void ibm_handle_events(acpi_handle handle, u32 event, void *context)
 
 	if (subevent == 0x80) {
 		dbg("%s: generationg bus event\n", __FUNCTION__);
-		acpi_bus_generate_event(note->device, note->event, detail);
+		acpi_bus_generate_proc_event(note->device, note->event, detail);
+		acpi_bus_generate_netlink_event(note->device->pnp.device_class,
+						  note->device->dev.bus_id,
+						  note->event, detail);
 	} else
 		note->event = event;
 }
@@ -399,7 +402,7 @@ static acpi_status __init ibm_find_acpi_device(acpi_handle handle,
 
 	status = acpi_get_object_info(handle, &info_buffer);
 	if (ACPI_FAILURE(status)) {
-		err("%s:  Failed to get device information", __FUNCTION__);
+		err("%s:  Failed to get device information\n", __FUNCTION__);
 		return 0;
 	}
 	info.hardware_id.value[sizeof(info.hardware_id.value) - 1] = '\0';
diff --git a/drivers/pnp/card.c b/drivers/pnp/card.c
index b6a4f02b01d1..6c0440c20e31 100644
--- a/drivers/pnp/card.c
+++ b/drivers/pnp/card.c
@@ -25,13 +25,13 @@ static const struct pnp_card_device_id *match_card(struct pnp_card_driver *drv,
 				int found;
 				struct pnp_dev *dev;
 
-				if (i == PNP_MAX_DEVICES
-				    || !*drv_id->devs[i].id)
+				if (i == PNP_MAX_DEVICES ||
+				    !*drv_id->devs[i].id)
 					return drv_id;
 				found = 0;
 				card_for_each_dev(card, dev) {
-					if (compare_pnp_id
-					    (dev->id, drv_id->devs[i].id)) {
+					if (compare_pnp_id(dev->id,
+						   drv_id->devs[i].id)) {
 						found = 1;
 						break;
 					}
@@ -183,7 +183,7 @@ static int pnp_interface_attach_card(struct pnp_card *card)
 
 	return 0;
 
-      err_name:
+err_name:
 	device_remove_file(&card->dev, &dev_attr_name);
 	return rc;
 }
@@ -321,10 +321,10 @@ struct pnp_dev *pnp_request_card_device(struct pnp_card_link *clink,
 		pos = pos->next;
 	}
 
-      done:
+done:
 	return NULL;
 
-      found:
+found:
 	dev->card_link = clink;
 	dev->dev.driver = &drv->link.driver;
 	if (pnp_bus_type.probe(&dev->dev))
@@ -334,7 +334,7 @@ struct pnp_dev *pnp_request_card_device(struct pnp_card_link *clink,
 
 	return dev;
 
-      err_out:
+err_out:
 	dev->dev.driver = NULL;
 	dev->card_link = NULL;
 	return NULL;
diff --git a/drivers/pnp/core.c b/drivers/pnp/core.c
index 61066fdb9e6d..d5964feb14de 100644
--- a/drivers/pnp/core.c
+++ b/drivers/pnp/core.c
@@ -52,9 +52,6 @@ int pnp_register_protocol(struct pnp_protocol *protocol)
 	int nodenum;
 	struct list_head *pos;
 
-	if (!protocol)
-		return -EINVAL;
-
 	INIT_LIST_HEAD(&protocol->devices);
 	INIT_LIST_HEAD(&protocol->cards);
 	nodenum = 0;
@@ -94,8 +91,6 @@ static void pnp_free_ids(struct pnp_dev *dev)
 	struct pnp_id *id;
 	struct pnp_id *next;
 
-	if (!dev)
-		return;
 	id = dev->id;
 	while (id) {
 		next = id->next;
@@ -143,7 +138,7 @@ int __pnp_add_device(struct pnp_dev *dev)
  */
 int pnp_add_device(struct pnp_dev *dev)
 {
-	if (!dev || !dev->protocol || dev->card)
+	if (dev->card)
 		return -EINVAL;
 	dev->dev.parent = &dev->protocol->dev;
 	sprintf(dev->dev.bus_id, "%02x:%02x", dev->protocol->number,
diff --git a/drivers/pnp/driver.c b/drivers/pnp/driver.c
index 30b8f6f3258a..2fa64a6b25c8 100644
--- a/drivers/pnp/driver.c
+++ b/drivers/pnp/driver.c
@@ -118,7 +118,7 @@ static int pnp_device_probe(struct device *dev)
 		goto fail;
 	return error;
 
-      fail:
+fail:
 	pnp_device_detach(pnp_dev);
 	return error;
 }
@@ -232,10 +232,6 @@ int pnp_add_id(struct pnp_id *id, struct pnp_dev *dev)
 {
 	struct pnp_id *ptr;
 
-	if (!id)
-		return -EINVAL;
-	if (!dev)
-		return -EINVAL;
 	id->next = NULL;
 	ptr = dev->id;
 	while (ptr && ptr->next)
diff --git a/drivers/pnp/interface.c b/drivers/pnp/interface.c
index fe6684e13e82..a0cfb75bbb8d 100644
--- a/drivers/pnp/interface.c
+++ b/drivers/pnp/interface.c
@@ -459,7 +459,8 @@ pnp_set_current_resources(struct device *dmdev, struct device_attribute *attr,
 		up(&pnp_res_mutex);
 		goto done;
 	}
-      done:
+
+done:
 	if (retval < 0)
 		return retval;
 	return count;
@@ -499,10 +500,10 @@ int pnp_interface_attach_device(struct pnp_dev *dev)
 
 	return 0;
 
-      err_res:
+err_res:
 	device_remove_file(&dev->dev, &dev_attr_resources);
-      err_opt:
+err_opt:
 	device_remove_file(&dev->dev, &dev_attr_options);
-      err:
+err:
 	return rc;
 }
diff --git a/drivers/pnp/isapnp/core.c b/drivers/pnp/isapnp/core.c
index b4e2aa995b53..b035d60a1dcc 100644
--- a/drivers/pnp/isapnp/core.c
+++ b/drivers/pnp/isapnp/core.c
@@ -47,9 +47,6 @@
 #if 0
 #define ISAPNP_REGION_OK
 #endif
-#if 0
-#define ISAPNP_DEBUG
-#endif
 
 int isapnp_disable;		/* Disable ISA PnP */
 static int isapnp_rdp;		/* Read Data Port */
@@ -93,7 +90,6 @@ MODULE_LICENSE("GPL");
 
 static unsigned char isapnp_checksum_value;
 static DEFINE_MUTEX(isapnp_cfg_mutex);
-static int isapnp_detected;
 static int isapnp_csn_count;
 
 /* some prototypes */
@@ -335,7 +331,7 @@ static int __init isapnp_isolate(void)
 		} else if (iteration > 1) {
 			break;
 		}
-	      __next:
+__next:
 		if (csn == 255)
 			break;
 		checksum = 0x6a;
@@ -733,7 +729,7 @@ static int __init isapnp_create_device(struct pnp_card *card,
 			       "isapnp: unexpected or unknown tag type 0x%x for logical device %i (device %i), ignored\n",
 			       type, dev->number, card->number);
 		}
-	      __skip:
+__skip:
 		if (size > 0)
 			isapnp_skip_bytes(size);
 	}
@@ -788,7 +784,7 @@ static void __init isapnp_parse_resource_map(struct pnp_card *card)
 			       "isapnp: unexpected or unknown tag type 0x%x for device %i, ignored\n",
 			       type, card->number);
 		}
-	      __skip:
+__skip:
 		if (size > 0)
 			isapnp_skip_bytes(size);
 	}
@@ -940,9 +936,6 @@ EXPORT_SYMBOL(isapnp_protocol);
 EXPORT_SYMBOL(isapnp_present);
 EXPORT_SYMBOL(isapnp_cfg_begin);
 EXPORT_SYMBOL(isapnp_cfg_end);
-#if 0
-EXPORT_SYMBOL(isapnp_read_byte);
-#endif
 EXPORT_SYMBOL(isapnp_write_byte);
 
 static int isapnp_read_resources(struct pnp_dev *dev,
@@ -993,6 +986,7 @@ static int isapnp_get_resources(struct pnp_dev *dev,
 				struct pnp_resource_table *res)
 {
 	int ret;
+
 	pnp_init_resource_table(res);
 	isapnp_cfg_begin(dev->card->number, dev->number);
 	ret = isapnp_read_resources(dev, res);
@@ -1046,7 +1040,7 @@ static int isapnp_set_resources(struct pnp_dev *dev,
 
 static int isapnp_disable_resources(struct pnp_dev *dev)
 {
-	if (!dev || !dev->active)
+	if (!dev->active)
 		return -EINVAL;
 	isapnp_cfg_begin(dev->card->number, dev->number);
 	isapnp_deactivate(dev->number);
@@ -1069,7 +1063,6 @@ static int __init isapnp_init(void)
 	struct pnp_dev *dev;
 
 	if (isapnp_disable) {
-		isapnp_detected = 0;
 		printk(KERN_INFO "isapnp: ISA Plug & Play support disabled\n");
 		return 0;
 	}
@@ -1117,7 +1110,6 @@ static int __init isapnp_init(void)
 		}
 		isapnp_set_rdp();
 	}
-	isapnp_detected = 1;
 	if (isapnp_rdp < 0x203 || isapnp_rdp > 0x3ff) {
 		cards = isapnp_isolate();
 		if (cards < 0 || (isapnp_rdp < 0x203 || isapnp_rdp > 0x3ff)) {
@@ -1125,7 +1117,6 @@ static int __init isapnp_init(void)
 			release_region(_PIDXR, 1);
 #endif
 			release_region(_PNPWRP, 1);
-			isapnp_detected = 0;
 			printk(KERN_INFO
 			       "isapnp: No Plug & Play device found\n");
 			return 0;
@@ -1148,13 +1139,12 @@ static int __init isapnp_init(void)
 			}
 		}
 	}
-	if (cards) {
+	if (cards)
 		printk(KERN_INFO
 		       "isapnp: %i Plug & Play card%s detected total\n", cards,
 		       cards > 1 ? "s" : "");
-	} else {
+	else
 		printk(KERN_INFO "isapnp: No Plug & Play card found\n");
-	}
 
 	isapnp_proc_init();
 	return 0;
diff --git a/drivers/pnp/isapnp/proc.c b/drivers/pnp/isapnp/proc.c
index 3fbc0f9ffc26..560ccb640816 100644
--- a/drivers/pnp/isapnp/proc.c
+++ b/drivers/pnp/isapnp/proc.c
@@ -112,33 +112,6 @@ static int isapnp_proc_attach_device(struct pnp_dev *dev)
 	return 0;
 }
 
-#ifdef MODULE
-static int __exit isapnp_proc_detach_device(struct pnp_dev *dev)
-{
-	struct pnp_card *bus = dev->card;
-	struct proc_dir_entry *de;
-	char name[16];
-
-	if (!(de = bus->procdir))
-		return -EINVAL;
-	sprintf(name, "%02x", dev->number);
-	remove_proc_entry(name, de);
-	return 0;
-}
-
-static int __exit isapnp_proc_detach_bus(struct pnp_card *bus)
-{
-	struct proc_dir_entry *de;
-	char name[16];
-
-	if (!(de = bus->procdir))
-		return -EINVAL;
-	sprintf(name, "%02x", bus->number);
-	remove_proc_entry(name, isapnp_proc_bus_dir);
-	return 0;
-}
-#endif				/* MODULE */
-
 int __init isapnp_proc_init(void)
 {
 	struct pnp_dev *dev;
@@ -149,21 +122,3 @@ int __init isapnp_proc_init(void)
 	}
 	return 0;
 }
-
-#ifdef MODULE
-int __exit isapnp_proc_done(void)
-{
-	struct pnp_dev *dev;
-	struct pnp_bus *card;
-
-	isapnp_for_each_dev(dev) {
-		isapnp_proc_detach_device(dev);
-	}
-	isapnp_for_each_card(card) {
-		isapnp_proc_detach_bus(card);
-	}
-	if (isapnp_proc_bus_dir)
-		remove_proc_entry("isapnp", proc_bus);
-	return 0;
-}
-#endif				/* MODULE */
diff --git a/drivers/pnp/manager.c b/drivers/pnp/manager.c
index 3bda513a6bd3..0826287eef53 100644
--- a/drivers/pnp/manager.c
+++ b/drivers/pnp/manager.c
@@ -21,9 +21,6 @@ static int pnp_assign_port(struct pnp_dev *dev, struct pnp_port *rule, int idx)
 	resource_size_t *start, *end;
 	unsigned long *flags;
 
-	if (!dev || !rule)
-		return -EINVAL;
-
 	if (idx >= PNP_MAX_PORT) {
 		pnp_err
 		    ("More than 4 ports is incompatible with pnp specifications.");
@@ -66,9 +63,6 @@ static int pnp_assign_mem(struct pnp_dev *dev, struct pnp_mem *rule, int idx)
 	resource_size_t *start, *end;
 	unsigned long *flags;
 
-	if (!dev || !rule)
-		return -EINVAL;
-
 	if (idx >= PNP_MAX_MEM) {
 		pnp_err
 		    ("More than 8 mems is incompatible with pnp specifications.");
@@ -127,9 +121,6 @@ static int pnp_assign_irq(struct pnp_dev *dev, struct pnp_irq *rule, int idx)
 		5, 10, 11, 12, 9, 14, 15, 7, 3, 4, 13, 0, 1, 6, 8, 2
 	};
 
-	if (!dev || !rule)
-		return -EINVAL;
-
 	if (idx >= PNP_MAX_IRQ) {
 		pnp_err
 		    ("More than 2 irqs is incompatible with pnp specifications.");
@@ -181,9 +172,6 @@ static int pnp_assign_dma(struct pnp_dev *dev, struct pnp_dma *rule, int idx)
 		1, 3, 5, 6, 7, 0, 2, 4
 	};
 
-	if (!dev || !rule)
-		return -EINVAL;
-
 	if (idx >= PNP_MAX_DMA) {
 		pnp_err
 		    ("More than 2 dmas is incompatible with pnp specifications.");
@@ -390,7 +378,7 @@ static int pnp_assign_resources(struct pnp_dev *dev, int depnum)
 	up(&pnp_res_mutex);
 	return 1;
 
-      fail:
+fail:
 	pnp_clean_resource_table(&dev->res);
 	up(&pnp_res_mutex);
 	return 0;
@@ -410,8 +398,6 @@ int pnp_manual_config_dev(struct pnp_dev *dev, struct pnp_resource_table *res,
 	int i;
 	struct pnp_resource_table *bak;
 
-	if (!dev || !res)
-		return -EINVAL;
 	if (!pnp_can_configure(dev))
 		return -ENODEV;
 	bak = pnp_alloc(sizeof(struct pnp_resource_table));
@@ -444,7 +430,7 @@ int pnp_manual_config_dev(struct pnp_dev *dev, struct pnp_resource_table *res,
 	kfree(bak);
 	return 0;
 
-      fail:
+fail:
 	dev->res = *bak;
 	up(&pnp_res_mutex);
 	kfree(bak);
@@ -460,9 +446,6 @@ int pnp_auto_config_dev(struct pnp_dev *dev)
 	struct pnp_option *dep;
 	int i = 1;
 
-	if (!dev)
-		return -EINVAL;
-
 	if (!pnp_can_configure(dev)) {
 		pnp_dbg("Device %s does not support resource configuration.",
 			dev->dev.bus_id);
@@ -541,8 +524,6 @@ int pnp_activate_dev(struct pnp_dev *dev)
 {
 	int error;
 
-	if (!dev)
-		return -EINVAL;
 	if (dev->active)
 		return 0;	/* the device is already active */
 
@@ -568,8 +549,6 @@ int pnp_disable_dev(struct pnp_dev *dev)
 {
 	int error;
 
-	if (!dev)
-		return -EINVAL;
 	if (!dev->active)
 		return 0;	/* the device is already disabled */
 
@@ -596,8 +575,6 @@ int pnp_disable_dev(struct pnp_dev *dev)
 void pnp_resource_change(struct resource *resource, resource_size_t start,
 			 resource_size_t size)
 {
-	if (resource == NULL)
-		return;
 	resource->flags &= ~(IORESOURCE_AUTO | IORESOURCE_UNSET);
 	resource->start = start;
 	resource->end = start + size - 1;
diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c
index 616fc72190bf..a5a372222d69 100644
--- a/drivers/pnp/pnpacpi/core.c
+++ b/drivers/pnp/pnpacpi/core.c
@@ -248,9 +248,9 @@ static int __init pnpacpi_add_device(struct acpi_device *device)
 	num++;
 
 	return AE_OK;
-      err1:
+err1:
 	kfree(dev_id);
-      err:
+err:
 	kfree(dev);
 	return -EINVAL;
 }
diff --git a/drivers/pnp/pnpacpi/rsparser.c b/drivers/pnp/pnpacpi/rsparser.c
index ce5027feb3da..0e3b8d0ff06b 100644
--- a/drivers/pnp/pnpacpi/rsparser.c
+++ b/drivers/pnp/pnpacpi/rsparser.c
@@ -34,19 +34,17 @@
  */
 static int irq_flags(int triggering, int polarity)
 {
-	int flag;
 	if (triggering == ACPI_LEVEL_SENSITIVE) {
 		if (polarity == ACPI_ACTIVE_LOW)
-			flag = IORESOURCE_IRQ_LOWLEVEL;
+			return IORESOURCE_IRQ_LOWLEVEL;
 		else
-			flag = IORESOURCE_IRQ_HIGHLEVEL;
+			return IORESOURCE_IRQ_HIGHLEVEL;
 	} else {
 		if (polarity == ACPI_ACTIVE_LOW)
-			flag = IORESOURCE_IRQ_LOWEDGE;
+			return IORESOURCE_IRQ_LOWEDGE;
 		else
-			flag = IORESOURCE_IRQ_HIGHEDGE;
+			return IORESOURCE_IRQ_HIGHEDGE;
 	}
-	return flag;
 }
 
 static void decode_irq_flags(int flag, int *triggering, int *polarity)
@@ -242,8 +240,7 @@ static void pnpacpi_parse_allocated_address_space(struct pnp_resource_table *res
 static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
 					      void *data)
 {
-	struct pnp_resource_table *res_table =
-	    (struct pnp_resource_table *)data;
+	struct pnp_resource_table *res_table = data;
 	int i;
 
 	switch (res->type) {
@@ -566,8 +563,7 @@ static acpi_status pnpacpi_option_resource(struct acpi_resource *res,
 					   void *data)
 {
 	int priority = 0;
-	struct acpipnp_parse_option_s *parse_data =
-	    (struct acpipnp_parse_option_s *)data;
+	struct acpipnp_parse_option_s *parse_data = data;
 	struct pnp_dev *dev = parse_data->dev;
 	struct pnp_option *option = parse_data->option;
 
@@ -705,7 +701,7 @@ static int pnpacpi_supported_resource(struct acpi_resource *res)
 static acpi_status pnpacpi_count_resources(struct acpi_resource *res,
 					   void *data)
 {
-	int *res_cnt = (int *)data;
+	int *res_cnt = data;
 
 	if (pnpacpi_supported_resource(res))
 		(*res_cnt)++;
@@ -714,7 +710,7 @@ static acpi_status pnpacpi_count_resources(struct acpi_resource *res,
 
 static acpi_status pnpacpi_type_resources(struct acpi_resource *res, void *data)
 {
-	struct acpi_resource **resource = (struct acpi_resource **)data;
+	struct acpi_resource **resource = data;
 
 	if (pnpacpi_supported_resource(res)) {
 		(*resource)->type = res->type;
@@ -886,8 +882,7 @@ int pnpacpi_encode_resources(struct pnp_resource_table *res_table,
 	int i = 0;
 	/* pnpacpi_build_resource_template allocates extra mem */
 	int res_cnt = (buffer->length - 1) / sizeof(struct acpi_resource) - 1;
-	struct acpi_resource *resource =
-	    (struct acpi_resource *)buffer->pointer;
+	struct acpi_resource *resource = buffer->pointer;
 	int port = 0, irq = 0, dma = 0, mem = 0;
 
 	pnp_dbg("res cnt %d", res_cnt);
diff --git a/drivers/pnp/pnpbios/core.c b/drivers/pnp/pnpbios/core.c
index 3692a099b45f..0691f473e9d4 100644
--- a/drivers/pnp/pnpbios/core.c
+++ b/drivers/pnp/pnpbios/core.c
@@ -419,7 +419,6 @@ static void __init build_devlist(void)
 static int pnpbios_disabled;
 int pnpbios_dont_use_current_config;
 
-#ifndef MODULE
 static int __init pnpbios_setup(char *str)
 {
 	int invert;
@@ -443,7 +442,6 @@ static int __init pnpbios_setup(char *str)
 }
 
 __setup("pnpbios=", pnpbios_setup);
-#endif
 
 /* PnP BIOS signature: "$PnP" */
 #define PNP_SIGNATURE   (('$' << 0) + ('P' << 8) + ('n' << 16) + ('P' << 24))
@@ -591,6 +589,7 @@ subsys_initcall(pnpbios_init);
 static int __init pnpbios_thread_init(void)
 {
 	struct task_struct *task;
+
 #if defined(CONFIG_PPC_MERGE)
 	if (check_legacy_ioport(PNPBIOS_BASE))
 		return 0;
@@ -606,48 +605,7 @@ static int __init pnpbios_thread_init(void)
 	return 0;
 }
 
-#ifndef MODULE
-
-/* init/main.c calls pnpbios_init early */
-
 /* Start the kernel thread later: */
 module_init(pnpbios_thread_init);
 
-#else
-
-/*
- * N.B.: Building pnpbios as a module hasn't been fully implemented
- */
-
-MODULE_LICENSE("GPL");
-
-static int __init pnpbios_init_all(void)
-{
-	int r;
-
-	r = pnpbios_init();
-	if (r)
-		return r;
-	r = pnpbios_thread_init();
-	if (r)
-		return r;
-	return 0;
-}
-
-static void __exit pnpbios_exit(void)
-{
-#ifdef CONFIG_HOTPLUG
-	unloading = 1;
-	wait_for_completion(&unload_sem);
-#endif
-	pnpbios_proc_exit();
-	/* We ought to free resources here */
-	return;
-}
-
-module_init(pnpbios_init_all);
-module_exit(pnpbios_exit);
-
-#endif
-
 EXPORT_SYMBOL(pnpbios_protocol);
diff --git a/drivers/pnp/pnpbios/proc.c b/drivers/pnp/pnpbios/proc.c
index 9c8c07701b65..9d9841f24a85 100644
--- a/drivers/pnp/pnpbios/proc.c
+++ b/drivers/pnp/pnpbios/proc.c
@@ -212,7 +212,7 @@ static int proc_write_node(struct file *file, const char __user * buf,
 		goto out;
 	}
 	ret = count;
-      out:
+out:
 	kfree(node);
 	return ret;
 }
diff --git a/drivers/pnp/pnpbios/rsparser.c b/drivers/pnp/pnpbios/rsparser.c
index 04ecd7b67230..3fabf11b0027 100644
--- a/drivers/pnp/pnpbios/rsparser.c
+++ b/drivers/pnp/pnpbios/rsparser.c
@@ -238,7 +238,7 @@ static unsigned char *pnpbios_parse_allocated_resource_data(unsigned char *p,
 			break;
 
 		default:	/* an unkown tag */
-		      len_err:
+len_err:
 			printk(KERN_ERR
 			       "PnPBIOS: Unknown tag '0x%x', length '%d'.\n",
 			       tag, len);
@@ -298,6 +298,7 @@ static void pnpbios_parse_fixed_mem32_option(unsigned char *p, int size,
 					     struct pnp_option *option)
 {
 	struct pnp_mem *mem;
+
 	mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
 	if (!mem)
 		return;
@@ -468,7 +469,7 @@ static unsigned char *pnpbios_parse_resource_option_data(unsigned char *p,
 			return p + 2;
 
 		default:	/* an unkown tag */
-		      len_err:
+len_err:
 			printk(KERN_ERR
 			       "PnPBIOS: Unknown tag '0x%x', length '%d'.\n",
 			       tag, len);
@@ -562,7 +563,7 @@ static unsigned char *pnpbios_parse_compatible_ids(unsigned char *p,
 			break;
 
 		default:	/* an unkown tag */
-		      len_err:
+len_err:
 			printk(KERN_ERR
 			       "PnPBIOS: Unknown tag '0x%x', length '%d'.\n",
 			       tag, len);
@@ -756,7 +757,7 @@ static unsigned char *pnpbios_encode_allocated_resource_data(unsigned char *p,
 			break;
 
 		default:	/* an unkown tag */
-		      len_err:
+len_err:
 			printk(KERN_ERR
 			       "PnPBIOS: Unknown tag '0x%x', length '%d'.\n",
 			       tag, len);
diff --git a/drivers/pnp/resource.c b/drivers/pnp/resource.c
index ea6ec14a0559..ef1286900db3 100644
--- a/drivers/pnp/resource.c
+++ b/drivers/pnp/resource.c
@@ -47,9 +47,6 @@ struct pnp_option *pnp_register_independent_option(struct pnp_dev *dev)
 {
 	struct pnp_option *option;
 
-	if (!dev)
-		return NULL;
-
 	option = pnp_build_option(PNP_RES_PRIORITY_PREFERRED);
 
 	/* this should never happen but if it does we'll try to continue */
@@ -64,9 +61,6 @@ struct pnp_option *pnp_register_dependent_option(struct pnp_dev *dev,
 {
 	struct pnp_option *option;
 
-	if (!dev)
-		return NULL;
-
 	option = pnp_build_option(priority);
 
 	if (dev->dependent) {
@@ -83,11 +77,6 @@ int pnp_register_irq_resource(struct pnp_option *option, struct pnp_irq *data)
 {
 	struct pnp_irq *ptr;
 
-	if (!option)
-		return -EINVAL;
-	if (!data)
-		return -EINVAL;
-
 	ptr = option->irq;
 	while (ptr && ptr->next)
 		ptr = ptr->next;
@@ -112,11 +101,6 @@ int pnp_register_dma_resource(struct pnp_option *option, struct pnp_dma *data)
 {
 	struct pnp_dma *ptr;
 
-	if (!option)
-		return -EINVAL;
-	if (!data)
-		return -EINVAL;
-
 	ptr = option->dma;
 	while (ptr && ptr->next)
 		ptr = ptr->next;
@@ -132,11 +116,6 @@ int pnp_register_port_resource(struct pnp_option *option, struct pnp_port *data)
 {
 	struct pnp_port *ptr;
 
-	if (!option)
-		return -EINVAL;
-	if (!data)
-		return -EINVAL;
-
 	ptr = option->port;
 	while (ptr && ptr->next)
 		ptr = ptr->next;
@@ -152,11 +131,6 @@ int pnp_register_mem_resource(struct pnp_option *option, struct pnp_mem *data)
 {
 	struct pnp_mem *ptr;
 
-	if (!option)
-		return -EINVAL;
-	if (!data)
-		return -EINVAL;
-
 	ptr = option->mem;
 	while (ptr && ptr->next)
 		ptr = ptr->next;
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 3d0fea235bf3..86aea44ce6d4 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -321,8 +321,7 @@ struct acpi_bus_event {
 };
 
 extern struct kset acpi_subsys;
-extern int acpi_bus_generate_genetlink_event(struct acpi_device *device,
-						u8 type, int data);
+extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int);
 /*
  * External Functions
  */
@@ -332,8 +331,13 @@ void acpi_bus_data_handler(acpi_handle handle, u32 function, void *context);
 int acpi_bus_get_status(struct acpi_device *device);
 int acpi_bus_get_power(acpi_handle handle, int *state);
 int acpi_bus_set_power(acpi_handle handle, int state);
-int acpi_bus_generate_event(struct acpi_device *device, u8 type, int data);
+#ifdef CONFIG_ACPI_PROC_EVENT
+int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data);
 int acpi_bus_receive_event(struct acpi_bus_event *event);
+#else
+static inline int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data)
+	{ return 0; }
+#endif
 int acpi_bus_register_driver(struct acpi_driver *driver);
 void acpi_bus_unregister_driver(struct acpi_driver *driver);
 int acpi_bus_add(struct acpi_device **child, struct acpi_device *parent,
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index b5cca5daa348..3d7ab9e0c9fe 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -130,7 +130,7 @@ acpi_walk_namespace(acpi_object_type type,
 		    void *context, void **return_value);
 
 acpi_status
-acpi_get_devices(char *HID,
+acpi_get_devices(const char *HID,
 		 acpi_walk_callback user_function,
 		 void *context, void **return_value);
 
diff --git a/include/acpi/acstruct.h b/include/acpi/acstruct.h
index aeb4498e5e06..88482655407f 100644
--- a/include/acpi/acstruct.h
+++ b/include/acpi/acstruct.h
@@ -146,7 +146,7 @@ struct acpi_init_walk_info {
 struct acpi_get_devices_info {
 	acpi_walk_callback user_function;
 	void *context;
-	char *hid;
+	const char *hid;
 };
 
 union acpi_aml_operands {
diff --git a/include/asm-i386/io_apic.h b/include/asm-i386/io_apic.h
index 340764076d5f..dbe734ddf2af 100644
--- a/include/asm-i386/io_apic.h
+++ b/include/asm-i386/io_apic.h
@@ -150,7 +150,6 @@ extern int (*ioapic_renumber_irq)(int ioapic, int irq);
 
 #else  /* !CONFIG_X86_IO_APIC */
 #define io_apic_assign_pci_irqs 0
-static inline void disable_ioapic_setup(void) { }
 #endif
 
 #endif
diff --git a/include/asm-x86_64/io_apic.h b/include/asm-x86_64/io_apic.h
index 969d225a9350..d9f2e54324d5 100644
--- a/include/asm-x86_64/io_apic.h
+++ b/include/asm-x86_64/io_apic.h
@@ -109,6 +109,12 @@ extern int mpc_default_type;
 /* 1 if "noapic" boot option passed */
 extern int skip_ioapic_setup;
 
+static inline void disable_ioapic_setup(void)
+{
+	skip_ioapic_setup = 1;
+}
+
+
 /*
  * If we use the IO-APIC for IRQ routing, disable automatic
  * assignment of PCI IRQ's.
diff --git a/include/linux/input.h b/include/linux/input.h
index e02c6a66b2ba..cf2b5619aa13 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -363,6 +363,12 @@ struct input_absinfo {
 
 #define KEY_UNKNOWN		240
 
+#define KEY_VIDEO_NEXT		241	/* drive next video source */
+#define KEY_VIDEO_PREV		242	/* drive previous video source */
+#define KEY_BRIGHTNESS_CYCLE	243	/* brightness up, after max is min */
+#define KEY_BRIGHTNESS_ZERO	244	/* brightness off, use ambient */
+#define KEY_DISPLAY_OFF		245	/* display device to off state */
+
 #define BTN_MISC		0x100
 #define BTN_0			0x100
 #define BTN_1			0x101
diff --git a/init/main.c b/init/main.c
index d3bcb3b11620..cc0653ec081d 100644
--- a/init/main.c
+++ b/init/main.c
@@ -146,9 +146,14 @@ static unsigned int __initdata max_cpus = NR_CPUS;
  * greater than 0, limits the maximum number of CPUs activated in
  * SMP mode to <NUM>.
  */
+#ifndef CONFIG_X86_IO_APIC
+static inline void disable_ioapic_setup(void) {};
+#endif
+
 static int __init nosmp(char *str)
 {
 	max_cpus = 0;
+	disable_ioapic_setup();
 	return 0;
 }
 
@@ -157,10 +162,13 @@ early_param("nosmp", nosmp);
 static int __init maxcpus(char *str)
 {
 	get_option(&str, &max_cpus);
-	return 1;
+	if (max_cpus == 0)
+		disable_ioapic_setup();
+
+	return 0;
 }
 
-__setup("maxcpus=", maxcpus);
+early_param("maxcpus=", maxcpus);
 #else
 #define max_cpus NR_CPUS
 #endif