Merge branch 'linus' into x86/urgent

71 files changed, 1585 insertions, 707 deletions

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index bba867391a85..735f5ea17473 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -336,6 +336,15 @@ config ACPI_EC
 	  the battery and thermal drivers.  If you are compiling for a 
 	  mobile system, say Y.
 
+config ACPI_PCI_SLOT
+	tristate "PCI slot detection driver"
+	default n
+	help
+	  This driver will attempt to discover all PCI slots in your system,
+	  and creates entries in /sys/bus/pci/slots/. This feature can
+	  help you correlate PCI bus addresses with the physical geography
+	  of your slots. If you are unsure, say N.
+
 config ACPI_POWER
 	bool
 	default y
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index 40b0fcae4c78..52a4cd4b81d0 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -21,7 +21,7 @@ obj-$(CONFIG_X86)		+= blacklist.o
 #
 # ACPI Core Subsystem (Interpreter)
 #
-obj-y				+= osl.o utils.o \
+obj-y				+= osl.o utils.o reboot.o\
 				   dispatcher/ events/ executer/ hardware/ \
 				   namespace/ parser/ resources/ tables/ \
 				   utilities/
@@ -48,6 +48,7 @@ obj-$(CONFIG_ACPI_DOCK)		+= dock.o
 obj-$(CONFIG_ACPI_BAY)		+= bay.o
 obj-$(CONFIG_ACPI_VIDEO)	+= video.o
 obj-y				+= pci_root.o pci_link.o pci_irq.o pci_bind.o
+obj-$(CONFIG_ACPI_PCI_SLOT)	+= pci_slot.o
 obj-$(CONFIG_ACPI_POWER)	+= power.o
 obj-$(CONFIG_ACPI_PROCESSOR)	+= processor.o
 obj-$(CONFIG_ACPI_CONTAINER)	+= container.o
diff --git a/drivers/acpi/bay.c b/drivers/acpi/bay.c
index 61b6c5beb2d3..e6caf5d42e0e 100644
--- a/drivers/acpi/bay.c
+++ b/drivers/acpi/bay.c
@@ -380,6 +380,9 @@ static int __init bay_init(void)
 	if (acpi_disabled)
 		return -ENODEV;
 
+	if (acpi_disabled)
+		return -ENODEV;
+
 	/* look for dockable drive bays */
 	acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
 		ACPI_UINT32_MAX, find_bay, &bays, NULL);
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index a6dbcf4d9ef5..ccae305ee55d 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -295,6 +295,28 @@ int acpi_bus_set_power(acpi_handle handle, int state)
 
 EXPORT_SYMBOL(acpi_bus_set_power);
 
+bool acpi_bus_power_manageable(acpi_handle handle)
+{
+	struct acpi_device *device;
+	int result;
+
+	result = acpi_bus_get_device(handle, &device);
+	return result ? false : device->flags.power_manageable;
+}
+
+EXPORT_SYMBOL(acpi_bus_power_manageable);
+
+bool acpi_bus_can_wakeup(acpi_handle handle)
+{
+	struct acpi_device *device;
+	int result;
+
+	result = acpi_bus_get_device(handle, &device);
+	return result ? false : device->wakeup.flags.valid;
+}
+
+EXPORT_SYMBOL(acpi_bus_can_wakeup);
+
 /* --------------------------------------------------------------------------
                                 Event Management
    -------------------------------------------------------------------------- */
@@ -612,7 +634,7 @@ static int __init acpi_bus_init_irq(void)
 	return 0;
 }
 
-acpi_native_uint acpi_gbl_permanent_mmap;
+u8 acpi_gbl_permanent_mmap;
 
 
 void __init acpi_early_init(void)
diff --git a/drivers/acpi/dispatcher/dsinit.c b/drivers/acpi/dispatcher/dsinit.c
index 610b1ee102b0..949f7c75029e 100644
--- a/drivers/acpi/dispatcher/dsinit.c
+++ b/drivers/acpi/dispatcher/dsinit.c
@@ -151,7 +151,7 @@ acpi_ds_init_one_object(acpi_handle obj_handle,
  ******************************************************************************/
 
 acpi_status
-acpi_ds_initialize_objects(acpi_native_uint table_index,
+acpi_ds_initialize_objects(u32 table_index,
 			   struct acpi_namespace_node * start_node)
 {
 	acpi_status status;
diff --git a/drivers/acpi/dispatcher/dsmethod.c b/drivers/acpi/dispatcher/dsmethod.c
index 2509809a36cf..4613b9ca5792 100644
--- a/drivers/acpi/dispatcher/dsmethod.c
+++ b/drivers/acpi/dispatcher/dsmethod.c
@@ -377,7 +377,6 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread,
 	}
 
 	info->parameters = &this_walk_state->operands[0];
-	info->parameter_type = ACPI_PARAM_ARGS;
 
 	status = acpi_ds_init_aml_walk(next_walk_state, NULL, method_node,
 				       obj_desc->method.aml_start,
diff --git a/drivers/acpi/dispatcher/dsopcode.c b/drivers/acpi/dispatcher/dsopcode.c
index a818e0ddb996..6a81c4400edf 100644
--- a/drivers/acpi/dispatcher/dsopcode.c
+++ b/drivers/acpi/dispatcher/dsopcode.c
@@ -691,12 +691,6 @@ acpi_ds_eval_buffer_field_operands(struct acpi_walk_state *walk_state,
 
 	status = acpi_ex_resolve_operands(op->common.aml_opcode,
 					  ACPI_WALK_OPERANDS, walk_state);
-
-	ACPI_DUMP_OPERANDS(ACPI_WALK_OPERANDS, ACPI_IMODE_EXECUTE,
-			   acpi_ps_get_opcode_name(op->common.aml_opcode),
-			   walk_state->num_operands,
-			   "after AcpiExResolveOperands");
-
 	if (ACPI_FAILURE(status)) {
 		ACPI_ERROR((AE_INFO, "(%s) bad operand(s) (%X)",
 			    acpi_ps_get_opcode_name(op->common.aml_opcode),
@@ -785,10 +779,6 @@ acpi_ds_eval_region_operands(struct acpi_walk_state *walk_state,
 		return_ACPI_STATUS(status);
 	}
 
-	ACPI_DUMP_OPERANDS(ACPI_WALK_OPERANDS, ACPI_IMODE_EXECUTE,
-			   acpi_ps_get_opcode_name(op->common.aml_opcode),
-			   1, "after AcpiExResolveOperands");
-
 	obj_desc = acpi_ns_get_attached_object(node);
 	if (!obj_desc) {
 		return_ACPI_STATUS(AE_NOT_EXIST);
@@ -848,7 +838,7 @@ acpi_ds_eval_table_region_operands(struct acpi_walk_state *walk_state,
 	union acpi_operand_object **operand;
 	struct acpi_namespace_node *node;
 	union acpi_parse_object *next_op;
-	acpi_native_uint table_index;
+	u32 table_index;
 	struct acpi_table_header *table;
 
 	ACPI_FUNCTION_TRACE_PTR(ds_eval_table_region_operands, op);
@@ -882,10 +872,6 @@ acpi_ds_eval_table_region_operands(struct acpi_walk_state *walk_state,
 		return_ACPI_STATUS(status);
 	}
 
-	ACPI_DUMP_OPERANDS(ACPI_WALK_OPERANDS, ACPI_IMODE_EXECUTE,
-			   acpi_ps_get_opcode_name(op->common.aml_opcode),
-			   1, "after AcpiExResolveOperands");
-
 	operand = &walk_state->operands[0];
 
 	/* Find the ACPI table */
@@ -1091,10 +1077,8 @@ acpi_ds_eval_bank_field_operands(struct acpi_walk_state *walk_state,
 		return_ACPI_STATUS(status);
 	}
 
-	ACPI_DUMP_OPERANDS(ACPI_WALK_OPERANDS, ACPI_IMODE_EXECUTE,
-			   acpi_ps_get_opcode_name(op->common.aml_opcode),
-			   1, "after AcpiExResolveOperands");
-
+	ACPI_DUMP_OPERANDS(ACPI_WALK_OPERANDS,
+			   acpi_ps_get_opcode_name(op->common.aml_opcode), 1);
 	/*
 	 * Get the bank_value operand and save it
 	 * (at Top of stack)
diff --git a/drivers/acpi/dispatcher/dswexec.c b/drivers/acpi/dispatcher/dswexec.c
index b246b9657ead..b5072fa9c920 100644
--- a/drivers/acpi/dispatcher/dswexec.c
+++ b/drivers/acpi/dispatcher/dswexec.c
@@ -408,14 +408,6 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
 							    [walk_state->
 							     num_operands - 1]),
 							  walk_state);
-			if (ACPI_SUCCESS(status)) {
-				ACPI_DUMP_OPERANDS(ACPI_WALK_OPERANDS,
-						   ACPI_IMODE_EXECUTE,
-						   acpi_ps_get_opcode_name
-						   (walk_state->opcode),
-						   walk_state->num_operands,
-						   "after ExResolveOperands");
-			}
 		}
 
 		if (ACPI_SUCCESS(status)) {
diff --git a/drivers/acpi/dispatcher/dswstate.c b/drivers/acpi/dispatcher/dswstate.c
index 1386ced332ec..b00d4af791aa 100644
--- a/drivers/acpi/dispatcher/dswstate.c
+++ b/drivers/acpi/dispatcher/dswstate.c
@@ -70,7 +70,7 @@ acpi_status
 acpi_ds_result_pop(union acpi_operand_object **object,
 		   struct acpi_walk_state *walk_state)
 {
-	acpi_native_uint index;
+	u32 index;
 	union acpi_generic_state *state;
 	acpi_status status;
 
@@ -122,7 +122,7 @@ acpi_ds_result_pop(union acpi_operand_object **object,
 	ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
 			  "Obj=%p [%s] Index=%X State=%p Num=%X\n", *object,
 			  acpi_ut_get_object_type_name(*object),
-			  (u32) index, walk_state, walk_state->result_count));
+			  index, walk_state, walk_state->result_count));
 
 	return (AE_OK);
 }
@@ -146,7 +146,7 @@ acpi_ds_result_push(union acpi_operand_object * object,
 {
 	union acpi_generic_state *state;
 	acpi_status status;
-	acpi_native_uint index;
+	u32 index;
 
 	ACPI_FUNCTION_NAME(ds_result_push);
 
@@ -400,7 +400,7 @@ void
 acpi_ds_obj_stack_pop_and_delete(u32 pop_count,
 				 struct acpi_walk_state *walk_state)
 {
-	acpi_native_int i;
+	s32 i;
 	union acpi_operand_object *obj_desc;
 
 	ACPI_FUNCTION_NAME(ds_obj_stack_pop_and_delete);
@@ -409,7 +409,7 @@ acpi_ds_obj_stack_pop_and_delete(u32 pop_count,
 		return;
 	}
 
-	for (i = (acpi_native_int) (pop_count - 1); i >= 0; i--) {
+	for (i = (s32) pop_count - 1; i >= 0; i--) {
 		if (walk_state->num_operands == 0) {
 			return;
 		}
@@ -615,14 +615,8 @@ acpi_ds_init_aml_walk(struct acpi_walk_state *walk_state,
 	walk_state->pass_number = pass_number;
 
 	if (info) {
-		if (info->parameter_type == ACPI_PARAM_GPE) {
-			walk_state->gpe_event_info =
-			    ACPI_CAST_PTR(struct acpi_gpe_event_info,
-					  info->parameters);
-		} else {
-			walk_state->params = info->parameters;
-			walk_state->caller_return_desc = &info->return_object;
-		}
+		walk_state->params = info->parameters;
+		walk_state->caller_return_desc = &info->return_object;
 	}
 
 	status = acpi_ps_init_scope(&walk_state->parser_state, op);
diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index bb7c51f712bd..1e872e79db33 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -920,6 +920,9 @@ static int __init dock_init(void)
 	if (acpi_disabled)
 		return 0;
 
+	if (acpi_disabled)
+		return 0;
+
 	/* look for a dock station */
 	acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
 			    ACPI_UINT32_MAX, find_dock, &num, NULL);
diff --git a/drivers/acpi/events/evevent.c b/drivers/acpi/events/evevent.c
index 5d30e5be1b1c..c56c5c6ea77b 100644
--- a/drivers/acpi/events/evevent.c
+++ b/drivers/acpi/events/evevent.c
@@ -188,7 +188,7 @@ acpi_status acpi_ev_install_xrupt_handlers(void)
 
 static acpi_status acpi_ev_fixed_event_initialize(void)
 {
-	acpi_native_uint i;
+	u32 i;
 	acpi_status status;
 
 	/*
@@ -231,7 +231,7 @@ u32 acpi_ev_fixed_event_detect(void)
 	u32 int_status = ACPI_INTERRUPT_NOT_HANDLED;
 	u32 fixed_status;
 	u32 fixed_enable;
-	acpi_native_uint i;
+	u32 i;
 
 	ACPI_FUNCTION_NAME(ev_fixed_event_detect);
 
@@ -260,7 +260,7 @@ u32 acpi_ev_fixed_event_detect(void)
 
 			/* Found an active (signalled) event */
 			acpi_os_fixed_event_count(i);
-			int_status |= acpi_ev_fixed_event_dispatch((u32) i);
+			int_status |= acpi_ev_fixed_event_dispatch(i);
 		}
 	}
 
diff --git a/drivers/acpi/events/evgpe.c b/drivers/acpi/events/evgpe.c
index 5354be44f876..c5e53aae86f7 100644
--- a/drivers/acpi/events/evgpe.c
+++ b/drivers/acpi/events/evgpe.c
@@ -256,7 +256,7 @@ acpi_status acpi_ev_disable_gpe(struct acpi_gpe_event_info *gpe_event_info)
 		return_ACPI_STATUS(status);
 	}
 
-	/* Mark wake-disabled or HW disable, or both */
+	/* Clear the appropriate enabled flags for this GPE */
 
 	switch (gpe_event_info->flags & ACPI_GPE_TYPE_MASK) {
 	case ACPI_GPE_TYPE_WAKE:
@@ -273,13 +273,23 @@ acpi_status acpi_ev_disable_gpe(struct acpi_gpe_event_info *gpe_event_info)
 		/* Disable the requested runtime GPE */
 
 		ACPI_CLEAR_BIT(gpe_event_info->flags, ACPI_GPE_RUN_ENABLED);
-
-		/* fallthrough */
+		break;
 
 	default:
-		acpi_hw_write_gpe_enable_reg(gpe_event_info);
+		break;
 	}
 
+	/*
+	 * Even if we don't know the GPE type, make sure that we always
+	 * disable it. low_disable_gpe will just clear the enable bit for this
+	 * GPE and write it. It will not write out the current GPE enable mask,
+	 * since this may inadvertently enable GPEs too early, if a rogue GPE has
+	 * come in during ACPICA initialization - possibly as a result of AML or
+	 * other code that has enabled the GPE.
+	 */
+	status = acpi_hw_low_disable_gpe(gpe_event_info);
+	return_ACPI_STATUS(status);
+
 	return_ACPI_STATUS(AE_OK);
 }
 
@@ -305,7 +315,7 @@ struct acpi_gpe_event_info *acpi_ev_get_gpe_event_info(acpi_handle gpe_device,
 {
 	union acpi_operand_object *obj_desc;
 	struct acpi_gpe_block_info *gpe_block;
-	acpi_native_uint i;
+	u32 i;
 
 	ACPI_FUNCTION_ENTRY();
 
@@ -379,8 +389,8 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
 	u32 status_reg;
 	u32 enable_reg;
 	acpi_cpu_flags flags;
-	acpi_native_uint i;
-	acpi_native_uint j;
+	u32 i;
+	u32 j;
 
 	ACPI_FUNCTION_NAME(ev_gpe_detect);
 
@@ -462,13 +472,7 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
 					 */
 					int_status |=
 					    acpi_ev_gpe_dispatch(&gpe_block->
-								 event_info[(i *
-									     ACPI_GPE_REGISTER_WIDTH)
-									    +
-									    j],
-								 (u32) j +
-								 gpe_register_info->
-								 base_gpe_number);
+						event_info[((acpi_size) i * ACPI_GPE_REGISTER_WIDTH) + j], j + gpe_register_info->base_gpe_number);
 				}
 			}
 		}
@@ -555,10 +559,6 @@ static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context)
 			 */
 			info->prefix_node =
 			    local_gpe_event_info.dispatch.method_node;
-			info->parameters =
-			    ACPI_CAST_PTR(union acpi_operand_object *,
-					  gpe_event_info);
-			info->parameter_type = ACPI_PARAM_GPE;
 			info->flags = ACPI_IGNORE_RETURN_VALUE;
 
 			status = acpi_ns_evaluate(info);
diff --git a/drivers/acpi/events/evgpeblk.c b/drivers/acpi/events/evgpeblk.c
index e6c4d4c49e79..73c058e2f5c2 100644
--- a/drivers/acpi/events/evgpeblk.c
+++ b/drivers/acpi/events/evgpeblk.c
@@ -189,8 +189,8 @@ acpi_ev_delete_gpe_handlers(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
 			    struct acpi_gpe_block_info *gpe_block)
 {
 	struct acpi_gpe_event_info *gpe_event_info;
-	acpi_native_uint i;
-	acpi_native_uint j;
+	u32 i;
+	u32 j;
 
 	ACPI_FUNCTION_TRACE(ev_delete_gpe_handlers);
 
@@ -203,7 +203,8 @@ acpi_ev_delete_gpe_handlers(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
 		for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) {
 			gpe_event_info =
 			    &gpe_block->
-			    event_info[(i * ACPI_GPE_REGISTER_WIDTH) + j];
+			    event_info[((acpi_size) i *
+					ACPI_GPE_REGISTER_WIDTH) + j];
 
 			if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) ==
 			    ACPI_GPE_DISPATCH_HANDLER) {
@@ -744,8 +745,8 @@ acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block)
 	struct acpi_gpe_event_info *gpe_event_info = NULL;
 	struct acpi_gpe_event_info *this_event;
 	struct acpi_gpe_register_info *this_register;
-	acpi_native_uint i;
-	acpi_native_uint j;
+	u32 i;
+	u32 j;
 	acpi_status status;
 
 	ACPI_FUNCTION_TRACE(ev_create_gpe_info_blocks);
@@ -983,8 +984,8 @@ acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device,
 	struct acpi_gpe_walk_info gpe_info;
 	u32 wake_gpe_count;
 	u32 gpe_enabled_count;
-	acpi_native_uint i;
-	acpi_native_uint j;
+	u32 i;
+	u32 j;
 
 	ACPI_FUNCTION_TRACE(ev_initialize_gpe_block);
 
@@ -1033,7 +1034,8 @@ acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device,
 
 			gpe_event_info =
 			    &gpe_block->
-			    event_info[(i * ACPI_GPE_REGISTER_WIDTH) + j];
+			    event_info[((acpi_size) i *
+					ACPI_GPE_REGISTER_WIDTH) + j];
 
 			if (((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) ==
 			     ACPI_GPE_DISPATCH_METHOD)
diff --git a/drivers/acpi/events/evmisc.c b/drivers/acpi/events/evmisc.c
index 2113e58e2221..1d5670be729a 100644
--- a/drivers/acpi/events/evmisc.c
+++ b/drivers/acpi/events/evmisc.c
@@ -575,7 +575,7 @@ acpi_status acpi_ev_release_global_lock(void)
 
 void acpi_ev_terminate(void)
 {
-	acpi_native_uint i;
+	u32 i;
 	acpi_status status;
 
 	ACPI_FUNCTION_TRACE(ev_terminate);
@@ -589,7 +589,7 @@ void acpi_ev_terminate(void)
 		/* Disable all fixed events */
 
 		for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) {
-			status = acpi_disable_event((u32) i, 0);
+			status = acpi_disable_event(i, 0);
 			if (ACPI_FAILURE(status)) {
 				ACPI_ERROR((AE_INFO,
 					    "Could not disable fixed event %d",
diff --git a/drivers/acpi/events/evregion.c b/drivers/acpi/events/evregion.c
index 1628f5934752..236fbd1ca438 100644
--- a/drivers/acpi/events/evregion.c
+++ b/drivers/acpi/events/evregion.c
@@ -81,7 +81,7 @@ acpi_ev_install_handler(acpi_handle obj_handle,
 acpi_status acpi_ev_install_region_handlers(void)
 {
 	acpi_status status;
-	acpi_native_uint i;
+	u32 i;
 
 	ACPI_FUNCTION_TRACE(ev_install_region_handlers);
 
@@ -151,7 +151,7 @@ acpi_status acpi_ev_install_region_handlers(void)
 acpi_status acpi_ev_initialize_op_regions(void)
 {
 	acpi_status status;
-	acpi_native_uint i;
+	u32 i;
 
 	ACPI_FUNCTION_TRACE(ev_initialize_op_regions);
 
@@ -219,7 +219,6 @@ acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function)
 	info->prefix_node = region_obj2->extra.method_REG;
 	info->pathname = NULL;
 	info->parameters = args;
-	info->parameter_type = ACPI_PARAM_ARGS;
 	info->flags = ACPI_IGNORE_RETURN_VALUE;
 
 	/*
diff --git a/drivers/acpi/events/evrgnini.c b/drivers/acpi/events/evrgnini.c
index 2e3d2c5e4f4d..6b94b38df07d 100644
--- a/drivers/acpi/events/evrgnini.c
+++ b/drivers/acpi/events/evrgnini.c
@@ -380,7 +380,7 @@ static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node)
 	acpi_status status;
 	struct acpica_device_id hid;
 	struct acpi_compatible_id_list *cid;
-	acpi_native_uint i;
+	u32 i;
 
 	/*
 	 * Get the _HID and check for a PCI Root Bridge
diff --git a/drivers/acpi/events/evxfevnt.c b/drivers/acpi/events/evxfevnt.c
index 99a7502e6a87..73bfd6bf962f 100644
--- a/drivers/acpi/events/evxfevnt.c
+++ b/drivers/acpi/events/evxfevnt.c
@@ -472,7 +472,6 @@ acpi_status acpi_clear_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags)
 }
 
 ACPI_EXPORT_SYMBOL(acpi_clear_gpe)
-#ifdef ACPI_FUTURE_USAGE
 /*******************************************************************************
  *
  * FUNCTION:    acpi_get_event_status
@@ -489,6 +488,7 @@ ACPI_EXPORT_SYMBOL(acpi_clear_gpe)
 acpi_status acpi_get_event_status(u32 event, acpi_event_status * event_status)
 {
 	acpi_status status = AE_OK;
+	u32 value;
 
 	ACPI_FUNCTION_TRACE(acpi_get_event_status);
 
@@ -506,7 +506,20 @@ acpi_status acpi_get_event_status(u32 event, acpi_event_status * event_status)
 
 	status =
 	    acpi_get_register(acpi_gbl_fixed_event_info[event].
-			      status_register_id, event_status);
+			      enable_register_id, &value);
+	if (ACPI_FAILURE(status))
+		return_ACPI_STATUS(status);
+
+	*event_status = value;
+
+	status =
+	    acpi_get_register(acpi_gbl_fixed_event_info[event].
+			      status_register_id, &value);
+	if (ACPI_FAILURE(status))
+		return_ACPI_STATUS(status);
+
+	if (value)
+		*event_status |= ACPI_EVENT_FLAG_SET;
 
 	return_ACPI_STATUS(status);
 }
@@ -566,7 +579,6 @@ acpi_get_gpe_status(acpi_handle gpe_device,
 }
 
 ACPI_EXPORT_SYMBOL(acpi_get_gpe_status)
-#endif				/*  ACPI_FUTURE_USAGE  */
 /*******************************************************************************
  *
  * FUNCTION:    acpi_install_gpe_block
diff --git a/drivers/acpi/executer/exconfig.c b/drivers/acpi/executer/exconfig.c
index 39d742190584..2a32c843cb4a 100644
--- a/drivers/acpi/executer/exconfig.c
+++ b/drivers/acpi/executer/exconfig.c
@@ -53,7 +53,7 @@ ACPI_MODULE_NAME("exconfig")
 
 /* Local prototypes */
 static acpi_status
-acpi_ex_add_table(acpi_native_uint table_index,
+acpi_ex_add_table(u32 table_index,
 		  struct acpi_namespace_node *parent_node,
 		  union acpi_operand_object **ddb_handle);
 
@@ -73,7 +73,7 @@ acpi_ex_add_table(acpi_native_uint table_index,
  ******************************************************************************/
 
 static acpi_status
-acpi_ex_add_table(acpi_native_uint table_index,
+acpi_ex_add_table(u32 table_index,
 		  struct acpi_namespace_node *parent_node,
 		  union acpi_operand_object **ddb_handle)
 {
@@ -96,7 +96,8 @@ acpi_ex_add_table(acpi_native_uint table_index,
 
 	/* Install the new table into the local data structures */
 
-	obj_desc->reference.object = ACPI_CAST_PTR(void, table_index);
+	obj_desc->reference.object = ACPI_CAST_PTR(void,
+			(unsigned long)table_index);
 
 	/* Add the table to the namespace */
 
@@ -128,12 +129,12 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state,
 {
 	acpi_status status;
 	union acpi_operand_object **operand = &walk_state->operands[0];
-	acpi_native_uint table_index;
 	struct acpi_namespace_node *parent_node;
 	struct acpi_namespace_node *start_node;
 	struct acpi_namespace_node *parameter_node = NULL;
 	union acpi_operand_object *ddb_handle;
 	struct acpi_table_header *table;
+	u32 table_index;
 
 	ACPI_FUNCTION_TRACE(ex_load_table_op);
 
@@ -280,7 +281,7 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
 {
 	union acpi_operand_object *ddb_handle;
 	struct acpi_table_desc table_desc;
-	acpi_native_uint table_index;
+	u32 table_index;
 	acpi_status status;
 	u32 length;
 
@@ -437,7 +438,7 @@ acpi_status acpi_ex_unload_table(union acpi_operand_object *ddb_handle)
 {
 	acpi_status status = AE_OK;
 	union acpi_operand_object *table_desc = ddb_handle;
-	acpi_native_uint table_index;
+	u32 table_index;
 	struct acpi_table_header *table;
 
 	ACPI_FUNCTION_TRACE(ex_unload_table);
@@ -454,9 +455,9 @@ acpi_status acpi_ex_unload_table(union acpi_operand_object *ddb_handle)
 		return_ACPI_STATUS(AE_BAD_PARAMETER);
 	}
 
-	/* Get the table index from the ddb_handle */
+	/* Get the table index from the ddb_handle (acpi_size for 64-bit case) */
 
-	table_index = (acpi_native_uint) table_desc->reference.object;
+	table_index = (u32) (acpi_size) table_desc->reference.object;
 
 	/* Invoke table handler if present */
 
diff --git a/drivers/acpi/executer/exconvrt.c b/drivers/acpi/executer/exconvrt.c
index fd954b4ed83d..261d97516d9b 100644
--- a/drivers/acpi/executer/exconvrt.c
+++ b/drivers/acpi/executer/exconvrt.c
@@ -288,11 +288,11 @@ acpi_ex_convert_to_ascii(acpi_integer integer,
 			 u16 base, u8 * string, u8 data_width)
 {
 	acpi_integer digit;
-	acpi_native_uint i;
-	acpi_native_uint j;
-	acpi_native_uint k = 0;
-	acpi_native_uint hex_length;
-	acpi_native_uint decimal_length;
+	u32 i;
+	u32 j;
+	u32 k = 0;
+	u32 hex_length;
+	u32 decimal_length;
 	u32 remainder;
 	u8 supress_zeros;
 
@@ -348,7 +348,7 @@ acpi_ex_convert_to_ascii(acpi_integer integer,
 
 		/* hex_length: 2 ascii hex chars per data byte */
 
-		hex_length = (acpi_native_uint) ACPI_MUL_2(data_width);
+		hex_length = ACPI_MUL_2(data_width);
 		for (i = 0, j = (hex_length - 1); i < hex_length; i++, j--) {
 
 			/* Get one hex digit, most significant digits first */
diff --git a/drivers/acpi/executer/excreate.c b/drivers/acpi/executer/excreate.c
index 60e62c4f0577..ad09696d5069 100644
--- a/drivers/acpi/executer/excreate.c
+++ b/drivers/acpi/executer/excreate.c
@@ -45,8 +45,6 @@
 #include <acpi/acinterp.h>
 #include <acpi/amlcode.h>
 #include <acpi/acnamesp.h>
-#include <acpi/acevents.h>
-#include <acpi/actables.h>
 
 #define _COMPONENT          ACPI_EXECUTER
 ACPI_MODULE_NAME("excreate")
diff --git a/drivers/acpi/executer/exdump.c b/drivers/acpi/executer/exdump.c
index 74f1b22601b3..2be2e2bf95bf 100644
--- a/drivers/acpi/executer/exdump.c
+++ b/drivers/acpi/executer/exdump.c
@@ -580,25 +580,22 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth)
 
 	case ACPI_TYPE_BUFFER:
 
-		acpi_os_printf("Buffer len %X @ %p\n",
+		acpi_os_printf("Buffer length %.2X @ %p\n",
 			       obj_desc->buffer.length,
 			       obj_desc->buffer.pointer);
 
-		length = obj_desc->buffer.length;
-		if (length > 64) {
-			length = 64;
-		}
-
 		/* Debug only -- dump the buffer contents */
 
 		if (obj_desc->buffer.pointer) {
-			acpi_os_printf("Buffer Contents: ");
-
-			for (index = 0; index < length; index++) {
-				acpi_os_printf(" %02x",
-					       obj_desc->buffer.pointer[index]);
+			length = obj_desc->buffer.length;
+			if (length > 128) {
+				length = 128;
 			}
-			acpi_os_printf("\n");
+
+			acpi_os_printf
+			    ("Buffer Contents: (displaying length 0x%.2X)\n",
+			     length);
+			ACPI_DUMP_BUFFER(obj_desc->buffer.pointer, length);
 		}
 		break;
 
@@ -756,54 +753,42 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth)
  *
  * FUNCTION:    acpi_ex_dump_operands
  *
- * PARAMETERS:  Operands            - Operand list
- *              interpreter_mode    - Load or Exec
- *              Ident               - Identification
- *              num_levels          - # of stack entries to dump above line
- *              Note                - Output notation
- *              module_name         - Caller's module name
- *              line_number         - Caller's invocation line number
+ * PARAMETERS:	Operands	    - A list of Operand objects
+ *		opcode_name	    - AML opcode name
+ *		num_operands	    - Operand count for this opcode
  *
- * DESCRIPTION: Dump the object stack
+ * DESCRIPTION: Dump the operands associated with the opcode
  *
  ******************************************************************************/
 
 void
 acpi_ex_dump_operands(union acpi_operand_object **operands,
-		      acpi_interpreter_mode interpreter_mode,
-		      char *ident,
-		      u32 num_levels,
-		      char *note, char *module_name, u32 line_number)
+		      const char *opcode_name, u32 num_operands)
 {
-	acpi_native_uint i;
-
 	ACPI_FUNCTION_NAME(ex_dump_operands);
 
-	if (!ident) {
-		ident = "?";
-	}
-
-	if (!note) {
-		note = "?";
+	if (!opcode_name) {
+		opcode_name = "UNKNOWN";
 	}
 
 	ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-			  "************* Operand Stack Contents (Opcode [%s], %d Operands)\n",
-			  ident, num_levels));
+			  "**** Start operand dump for opcode [%s], %d operands\n",
+			  opcode_name, num_operands));
 
-	if (num_levels == 0) {
-		num_levels = 1;
+	if (num_operands == 0) {
+		num_operands = 1;
 	}
 
-	/* Dump the operand stack starting at the top */
+	/* Dump the individual operands */
 
-	for (i = 0; num_levels > 0; i--, num_levels--) {
-		acpi_ex_dump_operand(operands[i], 0);
+	while (num_operands) {
+		acpi_ex_dump_operand(*operands, 0);
+		operands++;
+		num_operands--;
 	}
 
 	ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-			  "************* Operand Stack dump from %s(%d), %s\n",
-			  module_name, line_number, note));
+			  "**** End operand dump for [%s]\n", opcode_name));
 	return;
 }
 
diff --git a/drivers/acpi/executer/exfldio.c b/drivers/acpi/executer/exfldio.c
index e336b5dc7a50..9ff9d1f4615d 100644
--- a/drivers/acpi/executer/exfldio.c
+++ b/drivers/acpi/executer/exfldio.c
@@ -153,14 +153,15 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc,
 			/*
 			 * Slack mode only:  We will go ahead and allow access to this
 			 * field if it is within the region length rounded up to the next
-			 * access width boundary.
+			 * access width boundary. acpi_size cast for 64-bit compile.
 			 */
 			if (ACPI_ROUND_UP(rgn_desc->region.length,
 					  obj_desc->common_field.
 					  access_byte_width) >=
-			    (obj_desc->common_field.base_byte_offset +
-			     (acpi_native_uint) obj_desc->common_field.
-			     access_byte_width + field_datum_byte_offset)) {
+			    ((acpi_size) obj_desc->common_field.
+			     base_byte_offset +
+			     obj_desc->common_field.access_byte_width +
+			     field_datum_byte_offset)) {
 				return_ACPI_STATUS(AE_OK);
 			}
 		}
diff --git a/drivers/acpi/executer/exmisc.c b/drivers/acpi/executer/exmisc.c
index cc956a5b5267..731414a581a6 100644
--- a/drivers/acpi/executer/exmisc.c
+++ b/drivers/acpi/executer/exmisc.c
@@ -329,8 +329,8 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0,
 
 		/* Result of two Strings is a String */
 
-		return_desc = acpi_ut_create_string_object((acpi_size)
-							   (operand0->string.
+		return_desc = acpi_ut_create_string_object(((acpi_size)
+							    operand0->string.
 							    length +
 							    local_operand1->
 							    string.length));
@@ -352,8 +352,8 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0,
 
 		/* Result of two Buffers is a Buffer */
 
-		return_desc = acpi_ut_create_buffer_object((acpi_size)
-							   (operand0->buffer.
+		return_desc = acpi_ut_create_buffer_object(((acpi_size)
+							    operand0->buffer.
 							    length +
 							    local_operand1->
 							    buffer.length));
diff --git a/drivers/acpi/executer/exprep.c b/drivers/acpi/executer/exprep.c
index 3a2f8cd4c62a..5d438c32989d 100644
--- a/drivers/acpi/executer/exprep.c
+++ b/drivers/acpi/executer/exprep.c
@@ -503,11 +503,11 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info)
 		 */
 		second_desc = obj_desc->common.next_object;
 		second_desc->extra.aml_start =
-		    ((union acpi_parse_object *)(info->data_register_node))->
-		    named.data;
+		    ACPI_CAST_PTR(union acpi_parse_object,
+				  info->data_register_node)->named.data;
 		second_desc->extra.aml_length =
-		    ((union acpi_parse_object *)(info->data_register_node))->
-		    named.length;
+		    ACPI_CAST_PTR(union acpi_parse_object,
+				  info->data_register_node)->named.length;
 
 		break;
 
diff --git a/drivers/acpi/executer/exregion.c b/drivers/acpi/executer/exregion.c
index 7cd8bb54fa01..7a41c409ae4d 100644
--- a/drivers/acpi/executer/exregion.c
+++ b/drivers/acpi/executer/exregion.c
@@ -156,7 +156,7 @@ acpi_ex_system_memory_space_handler(u32 function,
 		/* Create a new mapping starting at the address given */
 
 		mem_info->mapped_logical_address =
-		    acpi_os_map_memory((acpi_native_uint) address, window_size);
+			acpi_os_map_memory((acpi_physical_address) address, window_size);
 		if (!mem_info->mapped_logical_address) {
 			ACPI_ERROR((AE_INFO,
 				    "Could not map memory at %8.8X%8.8X, size %X",
diff --git a/drivers/acpi/executer/exresop.c b/drivers/acpi/executer/exresop.c
index 73e29e566a70..54085f16ec28 100644
--- a/drivers/acpi/executer/exresop.c
+++ b/drivers/acpi/executer/exresop.c
@@ -698,5 +698,9 @@ acpi_ex_resolve_operands(u16 opcode,
 		}
 	}
 
+	ACPI_DUMP_OPERANDS(walk_state->operands,
+			   acpi_ps_get_opcode_name(opcode),
+			   walk_state->num_operands);
+
 	return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/executer/exstore.c b/drivers/acpi/executer/exstore.c
index 76c875bc3154..38b55e352495 100644
--- a/drivers/acpi/executer/exstore.c
+++ b/drivers/acpi/executer/exstore.c
@@ -343,12 +343,6 @@ acpi_ex_store(union acpi_operand_object *source_desc,
 			    acpi_ut_get_object_type_name(dest_desc),
 			    dest_desc));
 
-		ACPI_DUMP_STACK_ENTRY(source_desc);
-		ACPI_DUMP_STACK_ENTRY(dest_desc);
-		ACPI_DUMP_OPERANDS(&dest_desc, ACPI_IMODE_EXECUTE, "ExStore",
-				   2,
-				   "Target is not a Reference or Constant object");
-
 		return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
 	}
 
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index 6cf10cbc1eee..55c17afbe669 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -148,7 +148,7 @@ acpi_fan_write_state(struct file *file, const char __user * buffer,
 	int result = 0;
 	struct seq_file *m = file->private_data;
 	struct acpi_device *device = m->private;
-	char state_string[12] = { '\0' };
+	char state_string[3] = { '\0' };
 
 	if (count > sizeof(state_string) - 1)
 		return -EINVAL;
@@ -157,6 +157,12 @@ acpi_fan_write_state(struct file *file, const char __user * buffer,
 		return -EFAULT;
 
 	state_string[count] = '\0';
+	if ((state_string[0] < '0') || (state_string[0] > '3'))
+		return -EINVAL;
+	if (state_string[1] == '\n')
+		state_string[1] = '\0';
+	if (state_string[1] != '\0')
+		return -EINVAL;
 
 	result = acpi_bus_set_power(device->handle,
 				    simple_strtoul(state_string, NULL, 0));
diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index 9b227d4dc9c9..0f2dd81736bd 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -166,6 +166,8 @@ static int acpi_bind_one(struct device *dev, acpi_handle handle)
 				"firmware_node");
 		ret = sysfs_create_link(&acpi_dev->dev.kobj, &dev->kobj,
 				"physical_node");
+		if (acpi_dev->wakeup.flags.valid)
+			device_set_wakeup_capable(dev, true);
 	}
 
 	return 0;
@@ -336,6 +338,9 @@ static int __init acpi_rtc_init(void)
 	if (acpi_disabled)
 		return 0;
 
+	if (acpi_disabled)
+		return 0;
+
 	if (dev) {
 		rtc_wake_setup();
 		rtc_info.wake_on = rtc_wake_on;
diff --git a/drivers/acpi/hardware/hwgpe.c b/drivers/acpi/hardware/hwgpe.c
index 14bc4f456ae8..0b80db9d9197 100644
--- a/drivers/acpi/hardware/hwgpe.c
+++ b/drivers/acpi/hardware/hwgpe.c
@@ -55,6 +55,54 @@ acpi_hw_enable_wakeup_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
 
 /******************************************************************************
  *
+ * FUNCTION:	acpi_hw_low_disable_gpe
+ *
+ * PARAMETERS:	gpe_event_info	    - Info block for the GPE to be disabled
+ *
+ * RETURN:	Status
+ *
+ * DESCRIPTION: Disable a single GPE in the enable register.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info)
+{
+	struct acpi_gpe_register_info *gpe_register_info;
+	acpi_status status;
+	u32 enable_mask;
+
+	/* Get the info block for the entire GPE register */
+
+	gpe_register_info = gpe_event_info->register_info;
+	if (!gpe_register_info) {
+		return (AE_NOT_EXIST);
+	}
+
+	/* Get current value of the enable register that contains this GPE */
+
+	status = acpi_hw_low_level_read(ACPI_GPE_REGISTER_WIDTH, &enable_mask,
+					&gpe_register_info->enable_address);
+	if (ACPI_FAILURE(status)) {
+		return (status);
+	}
+
+	/* Clear just the bit that corresponds to this GPE */
+
+	ACPI_CLEAR_BIT(enable_mask,
+		       ((u32) 1 <<
+			(gpe_event_info->gpe_number -
+			 gpe_register_info->base_gpe_number)));
+
+	/* Write the updated enable mask */
+
+	status = acpi_hw_low_level_write(ACPI_GPE_REGISTER_WIDTH, enable_mask,
+					 &gpe_register_info->enable_address);
+
+	return (status);
+}
+
+/******************************************************************************
+ *
  * FUNCTION:    acpi_hw_write_gpe_enable_reg
  *
  * PARAMETERS:  gpe_event_info      - Info block for the GPE to be enabled
@@ -68,7 +116,7 @@ acpi_hw_enable_wakeup_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
  ******************************************************************************/
 
 acpi_status
-acpi_hw_write_gpe_enable_reg(struct acpi_gpe_event_info *gpe_event_info)
+acpi_hw_write_gpe_enable_reg(struct acpi_gpe_event_info * gpe_event_info)
 {
 	struct acpi_gpe_register_info *gpe_register_info;
 	acpi_status status;
@@ -138,7 +186,6 @@ acpi_status acpi_hw_clear_gpe(struct acpi_gpe_event_info * gpe_event_info)
  *
  ******************************************************************************/
 
-#ifdef ACPI_FUTURE_USAGE
 acpi_status
 acpi_hw_get_gpe_status(struct acpi_gpe_event_info * gpe_event_info,
 		       acpi_event_status * event_status)
@@ -198,7 +245,6 @@ acpi_hw_get_gpe_status(struct acpi_gpe_event_info * gpe_event_info,
       unlock_and_exit:
 	return (status);
 }
-#endif				/*  ACPI_FUTURE_USAGE  */
 
 /******************************************************************************
  *
diff --git a/drivers/acpi/namespace/nsdump.c b/drivers/acpi/namespace/nsdump.c
index 5445751b8a3e..0ab22004728a 100644
--- a/drivers/acpi/namespace/nsdump.c
+++ b/drivers/acpi/namespace/nsdump.c
@@ -73,7 +73,7 @@ acpi_ns_dump_one_device(acpi_handle obj_handle,
 
 void acpi_ns_print_pathname(u32 num_segments, char *pathname)
 {
-	acpi_native_uint i;
+	u32 i;
 
 	ACPI_FUNCTION_NAME(ns_print_pathname);
 
@@ -515,12 +515,12 @@ acpi_ns_dump_one_object(acpi_handle obj_handle,
 
 			if (obj_type > ACPI_TYPE_LOCAL_MAX) {
 				acpi_os_printf
-				    ("(Ptr to ACPI Object type %X [UNKNOWN])\n",
+				    ("(Pointer to ACPI Object type %.2X [UNKNOWN])\n",
 				     obj_type);
 				bytes_to_dump = 32;
 			} else {
 				acpi_os_printf
-				    ("(Ptr to ACPI Object type %X [%s])\n",
+				    ("(Pointer to ACPI Object type %.2X [%s])\n",
 				     obj_type, acpi_ut_get_type_name(obj_type));
 				bytes_to_dump =
 				    sizeof(union acpi_operand_object);
diff --git a/drivers/acpi/namespace/nseval.c b/drivers/acpi/namespace/nseval.c
index 14bdfa92bea0..d369164e00b0 100644
--- a/drivers/acpi/namespace/nseval.c
+++ b/drivers/acpi/namespace/nseval.c
@@ -138,6 +138,41 @@ acpi_status acpi_ns_evaluate(struct acpi_evaluate_info * info)
 			return_ACPI_STATUS(AE_NULL_OBJECT);
 		}
 
+		/*
+		 * Calculate the number of arguments being passed to the method
+		 */
+
+		info->param_count = 0;
+		if (info->parameters) {
+			while (info->parameters[info->param_count])
+				info->param_count++;
+		}
+
+		/* Error if too few arguments were passed in */
+
+		if (info->param_count < info->obj_desc->method.param_count) {
+			ACPI_ERROR((AE_INFO,
+				    "Insufficient arguments - "
+				    "method [%4.4s] needs %d, found %d",
+				    acpi_ut_get_node_name(info->resolved_node),
+				    info->obj_desc->method.param_count,
+				    info->param_count));
+			return_ACPI_STATUS(AE_MISSING_ARGUMENTS);
+		}
+
+		/* Just a warning if too many arguments */
+
+		else if (info->param_count >
+				info->obj_desc->method.param_count) {
+			ACPI_WARNING((AE_INFO,
+				      "Excess arguments - "
+				      "method [%4.4s] needs %d, found %d",
+				      acpi_ut_get_node_name(info->
+							    resolved_node),
+				      info->obj_desc->method.param_count,
+				      info->param_count));
+		}
+
 		ACPI_DUMP_PATHNAME(info->resolved_node, "Execute Method:",
 				   ACPI_LV_INFO, _COMPONENT);
 
diff --git a/drivers/acpi/namespace/nsinit.c b/drivers/acpi/namespace/nsinit.c
index 6d6d930c8e18..e4c57510d798 100644
--- a/drivers/acpi/namespace/nsinit.c
+++ b/drivers/acpi/namespace/nsinit.c
@@ -542,7 +542,6 @@ acpi_ns_init_one_device(acpi_handle obj_handle,
 	info->prefix_node = device_node;
 	info->pathname = METHOD_NAME__INI;
 	info->parameters = NULL;
-	info->parameter_type = ACPI_PARAM_ARGS;
 	info->flags = ACPI_IGNORE_RETURN_VALUE;
 
 	/*
diff --git a/drivers/acpi/namespace/nsload.c b/drivers/acpi/namespace/nsload.c
index 2c92f6cf5ce1..a4a412b7c029 100644
--- a/drivers/acpi/namespace/nsload.c
+++ b/drivers/acpi/namespace/nsload.c
@@ -71,8 +71,7 @@ static acpi_status acpi_ns_delete_subtree(acpi_handle start_handle);
  ******************************************************************************/
 
 acpi_status
-acpi_ns_load_table(acpi_native_uint table_index,
-		   struct acpi_namespace_node *node)
+acpi_ns_load_table(u32 table_index, struct acpi_namespace_node *node)
 {
 	acpi_status status;
 
diff --git a/drivers/acpi/namespace/nsparse.c b/drivers/acpi/namespace/nsparse.c
index 46a79b0103b6..a82271a9dbb3 100644
--- a/drivers/acpi/namespace/nsparse.c
+++ b/drivers/acpi/namespace/nsparse.c
@@ -63,13 +63,13 @@ ACPI_MODULE_NAME("nsparse")
  *
  ******************************************************************************/
 acpi_status
-acpi_ns_one_complete_parse(acpi_native_uint pass_number,
-			   acpi_native_uint table_index,
-			   struct acpi_namespace_node * start_node)
+acpi_ns_one_complete_parse(u32 pass_number,
+			   u32 table_index,
+			   struct acpi_namespace_node *start_node)
 {
 	union acpi_parse_object *parse_root;
 	acpi_status status;
-	acpi_native_uint aml_length;
+       u32 aml_length;
 	u8 *aml_start;
 	struct acpi_walk_state *walk_state;
 	struct acpi_table_header *table;
@@ -112,8 +112,8 @@ acpi_ns_one_complete_parse(acpi_native_uint pass_number,
 		aml_start = (u8 *) table + sizeof(struct acpi_table_header);
 		aml_length = table->length - sizeof(struct acpi_table_header);
 		status = acpi_ds_init_aml_walk(walk_state, parse_root, NULL,
-					       aml_start, (u32) aml_length,
-					       NULL, (u8) pass_number);
+					       aml_start, aml_length, NULL,
+					       (u8) pass_number);
 	}
 
 	if (ACPI_FAILURE(status)) {
@@ -158,8 +158,7 @@ acpi_ns_one_complete_parse(acpi_native_uint pass_number,
  ******************************************************************************/
 
 acpi_status
-acpi_ns_parse_table(acpi_native_uint table_index,
-		    struct acpi_namespace_node *start_node)
+acpi_ns_parse_table(u32 table_index, struct acpi_namespace_node *start_node)
 {
 	acpi_status status;
 
diff --git a/drivers/acpi/namespace/nsutils.c b/drivers/acpi/namespace/nsutils.c
index 64c039843ed2..b0817e1127b1 100644
--- a/drivers/acpi/namespace/nsutils.c
+++ b/drivers/acpi/namespace/nsutils.c
@@ -73,9 +73,9 @@ acpi_name acpi_ns_find_parent_name(struct acpi_namespace_node *node_to_search);
  ******************************************************************************/
 
 void
-acpi_ns_report_error(char *module_name,
+acpi_ns_report_error(const char *module_name,
 		     u32 line_number,
-		     char *internal_name, acpi_status lookup_status)
+		     const char *internal_name, acpi_status lookup_status)
 {
 	acpi_status status;
 	u32 bad_name;
@@ -130,11 +130,11 @@ acpi_ns_report_error(char *module_name,
  ******************************************************************************/
 
 void
-acpi_ns_report_method_error(char *module_name,
+acpi_ns_report_method_error(const char *module_name,
 			    u32 line_number,
-			    char *message,
+			    const char *message,
 			    struct acpi_namespace_node *prefix_node,
-			    char *path, acpi_status method_status)
+			    const char *path, acpi_status method_status)
 {
 	acpi_status status;
 	struct acpi_namespace_node *node = prefix_node;
@@ -167,7 +167,8 @@ acpi_ns_report_method_error(char *module_name,
  ******************************************************************************/
 
 void
-acpi_ns_print_node_pathname(struct acpi_namespace_node *node, char *message)
+acpi_ns_print_node_pathname(struct acpi_namespace_node *node,
+			    const char *message)
 {
 	struct acpi_buffer buffer;
 	acpi_status status;
@@ -296,7 +297,7 @@ u32 acpi_ns_local(acpi_object_type type)
 
 void acpi_ns_get_internal_name_length(struct acpi_namestring_info *info)
 {
-	char *next_external_char;
+	const char *next_external_char;
 	u32 i;
 
 	ACPI_FUNCTION_ENTRY();
@@ -363,9 +364,9 @@ acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info)
 {
 	u32 num_segments = info->num_segments;
 	char *internal_name = info->internal_name;
-	char *external_name = info->next_external_char;
+	const char *external_name = info->next_external_char;
 	char *result = NULL;
-	acpi_native_uint i;
+	u32 i;
 
 	ACPI_FUNCTION_TRACE(ns_build_internal_name);
 
@@ -400,12 +401,11 @@ acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info)
 			result = &internal_name[i];
 		} else if (num_segments == 2) {
 			internal_name[i] = AML_DUAL_NAME_PREFIX;
-			result = &internal_name[(acpi_native_uint) (i + 1)];
+			result = &internal_name[(acpi_size) i + 1];
 		} else {
 			internal_name[i] = AML_MULTI_NAME_PREFIX_OP;
-			internal_name[(acpi_native_uint) (i + 1)] =
-			    (char)num_segments;
-			result = &internal_name[(acpi_native_uint) (i + 2)];
+			internal_name[(acpi_size) i + 1] = (char)num_segments;
+			result = &internal_name[(acpi_size) i + 2];
 		}
 	}
 
@@ -472,7 +472,8 @@ acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info)
  *
  *******************************************************************************/
 
-acpi_status acpi_ns_internalize_name(char *external_name, char **converted_name)
+acpi_status
+acpi_ns_internalize_name(const char *external_name, char **converted_name)
 {
 	char *internal_name;
 	struct acpi_namestring_info info;
@@ -528,15 +529,15 @@ acpi_status acpi_ns_internalize_name(char *external_name, char **converted_name)
 
 acpi_status
 acpi_ns_externalize_name(u32 internal_name_length,
-			 char *internal_name,
+			 const char *internal_name,
 			 u32 * converted_name_length, char **converted_name)
 {
-	acpi_native_uint names_index = 0;
-	acpi_native_uint num_segments = 0;
-	acpi_native_uint required_length;
-	acpi_native_uint prefix_length = 0;
-	acpi_native_uint i = 0;
-	acpi_native_uint j = 0;
+	u32 names_index = 0;
+	u32 num_segments = 0;
+	u32 required_length;
+	u32 prefix_length = 0;
+	u32 i = 0;
+	u32 j = 0;
 
 	ACPI_FUNCTION_TRACE(ns_externalize_name);
 
@@ -582,9 +583,8 @@ acpi_ns_externalize_name(u32 internal_name_length,
 			/* <count> 4-byte names */
 
 			names_index = prefix_length + 2;
-			num_segments = (acpi_native_uint) (u8)
-			    internal_name[(acpi_native_uint)
-					  (prefix_length + 1)];
+			num_segments = (u8)
+			    internal_name[(acpi_size) prefix_length + 1];
 			break;
 
 		case AML_DUAL_NAME_PREFIX:
@@ -823,7 +823,7 @@ u32 acpi_ns_opens_scope(acpi_object_type type)
 
 acpi_status
 acpi_ns_get_node(struct acpi_namespace_node *prefix_node,
-		 char *pathname,
+		 const char *pathname,
 		 u32 flags, struct acpi_namespace_node **return_node)
 {
 	union acpi_generic_state scope_info;
diff --git a/drivers/acpi/namespace/nsxfeval.c b/drivers/acpi/namespace/nsxfeval.c
index a8d549187c84..38be5865d95d 100644
--- a/drivers/acpi/namespace/nsxfeval.c
+++ b/drivers/acpi/namespace/nsxfeval.c
@@ -182,7 +182,6 @@ acpi_evaluate_object(acpi_handle handle,
 	}
 
 	info->pathname = pathname;
-	info->parameter_type = ACPI_PARAM_ARGS;
 
 	/* Convert and validate the device handle */
 
@@ -442,7 +441,7 @@ acpi_ns_get_device_callback(acpi_handle obj_handle,
 	u32 flags;
 	struct acpica_device_id hid;
 	struct acpi_compatible_id_list *cid;
-	acpi_native_uint i;
+	u32 i;
 	int found;
 
 	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index 658e5f3abae0..cb9864e39bae 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -120,10 +120,10 @@ acpi_table_print_srat_entry(struct acpi_subtable_header *header)
 			struct acpi_srat_mem_affinity *p =
 			    (struct acpi_srat_mem_affinity *)header;
 			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-					  "SRAT Memory (0x%lx length 0x%lx type 0x%x) in proximity domain %d %s%s\n",
+					  "SRAT Memory (0x%lx length 0x%lx) in proximity domain %d %s%s\n",
 					  (unsigned long)p->base_address,
 					  (unsigned long)p->length,
-					  p->memory_type, p->proximity_domain,
+					  p->proximity_domain,
 					  (p->flags & ACPI_SRAT_MEM_ENABLED)?
 					  "enabled" : "disabled",
 					  (p->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE)?
diff --git a/drivers/acpi/parser/psargs.c b/drivers/acpi/parser/psargs.c
index e94463778845..d830b29b85b1 100644
--- a/drivers/acpi/parser/psargs.c
+++ b/drivers/acpi/parser/psargs.c
@@ -76,7 +76,7 @@ acpi_ps_get_next_package_length(struct acpi_parse_state *parser_state)
 {
 	u8 *aml = parser_state->aml;
 	u32 package_length = 0;
-	acpi_native_uint byte_count;
+	u32 byte_count;
 	u8 byte_zero_mask = 0x3F;	/* Default [0:5] */
 
 	ACPI_FUNCTION_TRACE(ps_get_next_package_length);
@@ -86,7 +86,7 @@ acpi_ps_get_next_package_length(struct acpi_parse_state *parser_state)
 	 * used to encode the package length, either 0,1,2, or 3
 	 */
 	byte_count = (aml[0] >> 6);
-	parser_state->aml += (byte_count + 1);
+	parser_state->aml += ((acpi_size) byte_count + 1);
 
 	/* Get bytes 3, 2, 1 as needed */
 
diff --git a/drivers/acpi/parser/psxface.c b/drivers/acpi/parser/psxface.c
index 52581454c47c..270469aae842 100644
--- a/drivers/acpi/parser/psxface.c
+++ b/drivers/acpi/parser/psxface.c
@@ -333,9 +333,9 @@ acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info)
 static void
 acpi_ps_update_parameter_list(struct acpi_evaluate_info *info, u16 action)
 {
-	acpi_native_uint i;
+	u32 i;
 
-	if ((info->parameter_type == ACPI_PARAM_ARGS) && (info->parameters)) {
+	if (info->parameters) {
 
 		/* Update reference count for each parameter */
 
diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c
index 89022a74faee..11acaee14d66 100644
--- a/drivers/acpi/pci_irq.c
+++ b/drivers/acpi/pci_irq.c
@@ -162,7 +162,7 @@ do_prt_fixups(struct acpi_prt_entry *entry, struct acpi_pci_routing_table *prt)
 		    !strcmp(prt->source, quirk->source) &&
 		    strlen(prt->source) >= strlen(quirk->actual_source)) {
 			printk(KERN_WARNING PREFIX "firmware reports "
-				"%04x:%02x:%02x[%c] connected to %s; "
+				"%04x:%02x:%02x PCI INT %c connected to %s; "
 				"changing to %s\n",
 				entry->id.segment, entry->id.bus,
 				entry->id.device, 'A' + entry->pin,
@@ -429,7 +429,7 @@ acpi_pci_irq_derive(struct pci_dev *dev,
 {
 	struct pci_dev *bridge = dev;
 	int irq = -1;
-	u8 bridge_pin = 0;
+	u8 bridge_pin = 0, orig_pin = pin;
 
 
 	if (!dev)
@@ -463,8 +463,8 @@ acpi_pci_irq_derive(struct pci_dev *dev,
 	}
 
 	if (irq < 0) {
-		printk(KERN_WARNING PREFIX "Unable to derive IRQ for device %s\n",
-			      pci_name(dev));
+		dev_warn(&dev->dev, "can't derive routing for PCI INT %c\n",
+			 'A' + orig_pin);
 		return -1;
 	}
 
@@ -487,6 +487,7 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
 	int triggering = ACPI_LEVEL_SENSITIVE;
 	int polarity = ACPI_ACTIVE_LOW;
 	char *link = NULL;
+	char link_desc[16];
 	int rc;
 
 
@@ -503,7 +504,7 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
 	pin--;
 
 	if (!dev->bus) {
-		printk(KERN_ERR PREFIX "Invalid (NULL) 'bus' field\n");
+		dev_err(&dev->dev, "invalid (NULL) 'bus' field\n");
 		return -ENODEV;
 	}
 
@@ -538,8 +539,7 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
 	 * driver reported one, then use it. Exit in any case.
 	 */
 	if (irq < 0) {
-		printk(KERN_WARNING PREFIX "PCI Interrupt %s[%c]: no GSI",
-		       pci_name(dev), ('A' + pin));
+		dev_warn(&dev->dev, "PCI INT %c: no GSI", 'A' + pin);
 		/* Interrupt Line values above 0xF are forbidden */
 		if (dev->irq > 0 && (dev->irq <= 0xF)) {
 			printk(" - using IRQ %d\n", dev->irq);
@@ -554,21 +554,21 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
 
 	rc = acpi_register_gsi(irq, triggering, polarity);
 	if (rc < 0) {
-		printk(KERN_WARNING PREFIX "PCI Interrupt %s[%c]: failed "
-		       "to register GSI\n", pci_name(dev), ('A' + pin));
+		dev_warn(&dev->dev, "PCI INT %c: failed to register GSI\n",
+			 'A' + pin);
 		return rc;
 	}
 	dev->irq = rc;
 
-	printk(KERN_INFO PREFIX "PCI Interrupt %s[%c] -> ",
-	       pci_name(dev), 'A' + pin);
-
 	if (link)
-		printk("Link [%s] -> ", link);
+		snprintf(link_desc, sizeof(link_desc), " -> Link[%s]", link);
+	else
+		link_desc[0] = '\0';
 
-	printk("GSI %u (%s, %s) -> IRQ %d\n", irq,
-	       (triggering == ACPI_LEVEL_SENSITIVE) ? "level" : "edge",
-	       (polarity == ACPI_ACTIVE_LOW) ? "low" : "high", dev->irq);
+	dev_info(&dev->dev, "PCI INT %c%s -> GSI %u (%s, %s) -> IRQ %d\n",
+		 'A' + pin, link_desc, irq,
+		 (triggering == ACPI_LEVEL_SENSITIVE) ? "level" : "edge",
+		 (polarity == ACPI_ACTIVE_LOW) ? "low" : "high", dev->irq);
 
 	return 0;
 }
@@ -616,10 +616,6 @@ void acpi_pci_irq_disable(struct pci_dev *dev)
 	 * (e.g. PCI_UNDEFINED_IRQ).
 	 */
 
-	printk(KERN_INFO PREFIX "PCI interrupt for device %s disabled\n",
-	       pci_name(dev));
-
+	dev_info(&dev->dev, "PCI INT %c disabled\n", 'A' + pin);
 	acpi_unregister_gsi(gsi);
-
-	return;
 }
diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c
new file mode 100644
index 000000000000..b9ab030a52d5
--- /dev/null
+++ b/drivers/acpi/pci_slot.c
@@ -0,0 +1,368 @@
+/*
+ *  pci_slot.c - ACPI PCI Slot Driver
+ *
+ *  The code here is heavily leveraged from the acpiphp module.
+ *  Thanks to Matthew Wilcox <matthew@wil.cx> for much guidance.
+ *  Thanks to Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> for code
+ *  review and fixes.
+ *
+ *  Copyright (C) 2007 Alex Chiang <achiang@hp.com>
+ *  Copyright (C) 2007 Hewlett-Packard Development Company, L.P.
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms and conditions of the GNU General Public License,
+ *  version 2, as published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that it will be useful, but
+ *  WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/acpi.h>
+#include <acpi/acpi_bus.h>
+#include <acpi/acpi_drivers.h>
+
+static int debug;
+static int check_sta_before_sun;
+
+#define DRIVER_VERSION 	"0.1"
+#define DRIVER_AUTHOR	"Alex Chiang <achiang@hp.com>"
+#define DRIVER_DESC	"ACPI PCI Slot Detection Driver"
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+MODULE_PARM_DESC(debug, "Debugging mode enabled or not");
+module_param(debug, bool, 0644);
+
+#define _COMPONENT		ACPI_PCI_COMPONENT
+ACPI_MODULE_NAME("pci_slot");
+
+#define MY_NAME "pci_slot"
+#define err(format, arg...) printk(KERN_ERR "%s: " format , MY_NAME , ## arg)
+#define info(format, arg...) printk(KERN_INFO "%s: " format , MY_NAME , ## arg)
+#define dbg(format, arg...)					\
+	do {							\
+		if (debug)					\
+			printk(KERN_DEBUG "%s: " format,	\
+				MY_NAME , ## arg);		\
+	} while (0)
+
+#define SLOT_NAME_SIZE 20		/* Inspired by #define in acpiphp.h */
+
+struct acpi_pci_slot {
+	acpi_handle root_handle;	/* handle of the root bridge */
+	struct pci_slot *pci_slot;	/* corresponding pci_slot */
+	struct list_head list;		/* node in the list of slots */
+};
+
+static int acpi_pci_slot_add(acpi_handle handle);
+static void acpi_pci_slot_remove(acpi_handle handle);
+
+static LIST_HEAD(slot_list);
+static DEFINE_MUTEX(slot_list_lock);
+static struct acpi_pci_driver acpi_pci_slot_driver = {
+	.add = acpi_pci_slot_add,
+	.remove = acpi_pci_slot_remove,
+};
+
+static int
+check_slot(acpi_handle handle, int *device, unsigned long *sun)
+{
+	int retval = 0;
+	unsigned long adr, sta;
+	acpi_status status;
+	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+
+	acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
+	dbg("Checking slot on path: %s\n", (char *)buffer.pointer);
+
+	if (check_sta_before_sun) {
+		/* If SxFy doesn't have _STA, we just assume it's there */
+		status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);
+		if (ACPI_SUCCESS(status) && !(sta & ACPI_STA_DEVICE_PRESENT)) {
+			retval = -1;
+			goto out;
+		}
+	}
+
+	status = acpi_evaluate_integer(handle, "_ADR", NULL, &adr);
+	if (ACPI_FAILURE(status)) {
+		dbg("_ADR returned %d on %s\n", status, (char *)buffer.pointer);
+		retval = -1;
+		goto out;
+	}
+
+	*device = (adr >> 16) & 0xffff;
+
+	/* No _SUN == not a slot == bail */
+	status = acpi_evaluate_integer(handle, "_SUN", NULL, sun);
+	if (ACPI_FAILURE(status)) {
+		dbg("_SUN returned %d on %s\n", status, (char *)buffer.pointer);
+		retval = -1;
+		goto out;
+	}
+
+out:
+	kfree(buffer.pointer);
+	return retval;
+}
+
+struct callback_args {
+	acpi_walk_callback	user_function;	/* only for walk_p2p_bridge */
+	struct pci_bus		*pci_bus;
+	acpi_handle		root_handle;
+};
+
+/*
+ * register_slot
+ *
+ * Called once for each SxFy object in the namespace. Don't worry about
+ * calling pci_create_slot multiple times for the same pci_bus:device,
+ * since each subsequent call simply bumps the refcount on the pci_slot.
+ *
+ * The number of calls to pci_destroy_slot from unregister_slot is
+ * symmetrical.
+ */
+static acpi_status
+register_slot(acpi_handle handle, u32 lvl, void *context, void **rv)
+{
+	int device;
+	unsigned long sun;
+	char name[SLOT_NAME_SIZE];
+	struct acpi_pci_slot *slot;
+	struct pci_slot *pci_slot;
+	struct callback_args *parent_context = context;
+	struct pci_bus *pci_bus = parent_context->pci_bus;
+
+	if (check_slot(handle, &device, &sun))
+		return AE_OK;
+
+	slot = kmalloc(sizeof(*slot), GFP_KERNEL);
+	if (!slot) {
+		err("%s: cannot allocate memory\n", __func__);
+		return AE_OK;
+	}
+
+	snprintf(name, sizeof(name), "%u", (u32)sun);
+	pci_slot = pci_create_slot(pci_bus, device, name);
+	if (IS_ERR(pci_slot)) {
+		err("pci_create_slot returned %ld\n", PTR_ERR(pci_slot));
+		kfree(slot);
+	}
+
+	slot->root_handle = parent_context->root_handle;
+	slot->pci_slot = pci_slot;
+	INIT_LIST_HEAD(&slot->list);
+	mutex_lock(&slot_list_lock);
+	list_add(&slot->list, &slot_list);
+	mutex_unlock(&slot_list_lock);
+
+	dbg("pci_slot: %p, pci_bus: %x, device: %d, name: %s\n",
+		pci_slot, pci_bus->number, device, name);
+
+	return AE_OK;
+}
+
+/*
+ * walk_p2p_bridge - discover and walk p2p bridges
+ * @handle: points to an acpi_pci_root
+ * @context: p2p_bridge_context pointer
+ *
+ * Note that when we call ourselves recursively, we pass a different
+ * value of pci_bus in the child_context.
+ */
+static acpi_status
+walk_p2p_bridge(acpi_handle handle, u32 lvl, void *context, void **rv)
+{
+	int device, function;
+	unsigned long adr;
+	acpi_status status;
+	acpi_handle dummy_handle;
+	acpi_walk_callback user_function;
+
+	struct pci_dev *dev;
+	struct pci_bus *pci_bus;
+	struct callback_args child_context;
+	struct callback_args *parent_context = context;
+
+	pci_bus = parent_context->pci_bus;
+	user_function = parent_context->user_function;
+
+	status = acpi_get_handle(handle, "_ADR", &dummy_handle);
+	if (ACPI_FAILURE(status))
+		return AE_OK;
+
+	status = acpi_evaluate_integer(handle, "_ADR", NULL, &adr);
+	if (ACPI_FAILURE(status))
+		return AE_OK;
+
+	device = (adr >> 16) & 0xffff;
+	function = adr & 0xffff;
+
+	dev = pci_get_slot(pci_bus, PCI_DEVFN(device, function));
+	if (!dev || !dev->subordinate)
+		goto out;
+
+	child_context.pci_bus = dev->subordinate;
+	child_context.user_function = user_function;
+	child_context.root_handle = parent_context->root_handle;
+
+	dbg("p2p bridge walk, pci_bus = %x\n", dev->subordinate->number);
+	status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1,
+				     user_function, &child_context, NULL);
+	if (ACPI_FAILURE(status))
+		goto out;
+
+	status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1,
+				     walk_p2p_bridge, &child_context, NULL);
+out:
+	pci_dev_put(dev);
+	return AE_OK;
+}
+
+/*
+ * walk_root_bridge - generic root bridge walker
+ * @handle: points to an acpi_pci_root
+ * @user_function: user callback for slot objects
+ *
+ * Call user_function for all objects underneath this root bridge.
+ * Walk p2p bridges underneath us and call user_function on those too.
+ */
+static int
+walk_root_bridge(acpi_handle handle, acpi_walk_callback user_function)
+{
+	int seg, bus;
+	unsigned long tmp;
+	acpi_status status;
+	acpi_handle dummy_handle;
+	struct pci_bus *pci_bus;
+	struct callback_args context;
+
+	/* If the bridge doesn't have _STA, we assume it is always there */
+	status = acpi_get_handle(handle, "_STA", &dummy_handle);
+	if (ACPI_SUCCESS(status)) {
+		status = acpi_evaluate_integer(handle, "_STA", NULL, &tmp);
+		if (ACPI_FAILURE(status)) {
+			info("%s: _STA evaluation failure\n", __func__);
+			return 0;
+		}
+		if ((tmp & ACPI_STA_DEVICE_FUNCTIONING) == 0)
+			/* don't register this object */
+			return 0;
+	}
+
+	status = acpi_evaluate_integer(handle, "_SEG", NULL, &tmp);
+	seg = ACPI_SUCCESS(status) ? tmp : 0;
+
+	status = acpi_evaluate_integer(handle, "_BBN", NULL, &tmp);
+	bus = ACPI_SUCCESS(status) ? tmp : 0;
+
+	pci_bus = pci_find_bus(seg, bus);
+	if (!pci_bus)
+		return 0;
+
+	context.pci_bus = pci_bus;
+	context.user_function = user_function;
+	context.root_handle = handle;
+
+	dbg("root bridge walk, pci_bus = %x\n", pci_bus->number);
+	status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1,
+				     user_function, &context, NULL);
+	if (ACPI_FAILURE(status))
+		return status;
+
+	status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1,
+				     walk_p2p_bridge, &context, NULL);
+	if (ACPI_FAILURE(status))
+		err("%s: walk_p2p_bridge failure - %d\n", __func__, status);
+
+	return status;
+}
+
+/*
+ * acpi_pci_slot_add
+ * @handle: points to an acpi_pci_root
+ */
+static int
+acpi_pci_slot_add(acpi_handle handle)
+{
+	acpi_status status;
+
+	status = walk_root_bridge(handle, register_slot);
+	if (ACPI_FAILURE(status))
+		err("%s: register_slot failure - %d\n", __func__, status);
+
+	return status;
+}
+
+/*
+ * acpi_pci_slot_remove
+ * @handle: points to an acpi_pci_root
+ */
+static void
+acpi_pci_slot_remove(acpi_handle handle)
+{
+	struct acpi_pci_slot *slot, *tmp;
+
+	mutex_lock(&slot_list_lock);
+	list_for_each_entry_safe(slot, tmp, &slot_list, list) {
+		if (slot->root_handle == handle) {
+			list_del(&slot->list);
+			pci_destroy_slot(slot->pci_slot);
+			kfree(slot);
+		}
+	}
+	mutex_unlock(&slot_list_lock);
+}
+
+static int do_sta_before_sun(const struct dmi_system_id *d)
+{
+	info("%s detected: will evaluate _STA before calling _SUN\n", d->ident);
+	check_sta_before_sun = 1;
+	return 0;
+}
+
+static struct dmi_system_id acpi_pci_slot_dmi_table[] __initdata = {
+	/*
+	 * Fujitsu Primequest machines will return 1023 to indicate an
+	 * error if the _SUN method is evaluated on SxFy objects that
+	 * are not present (as indicated by _STA), so for those machines,
+	 * we want to check _STA before evaluating _SUN.
+	 */
+	{
+	 .callback = do_sta_before_sun,
+	 .ident = "Fujitsu PRIMEQUEST",
+	 .matches = {
+		DMI_MATCH(DMI_BIOS_VENDOR, "FUJITSU LIMITED"),
+		DMI_MATCH(DMI_BIOS_VERSION, "PRIMEQUEST"),
+		},
+	},
+	{}
+};
+
+static int __init
+acpi_pci_slot_init(void)
+{
+	dmi_check_system(acpi_pci_slot_dmi_table);
+	acpi_pci_register_driver(&acpi_pci_slot_driver);
+	return 0;
+}
+
+static void __exit
+acpi_pci_slot_exit(void)
+{
+	acpi_pci_unregister_driver(&acpi_pci_slot_driver);
+}
+
+module_init(acpi_pci_slot_init);
+module_exit(acpi_pci_slot_exit);
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 81e4f081a4ae..4ab21cb1c8c7 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -292,69 +292,135 @@ static int acpi_power_off_device(acpi_handle handle, struct acpi_device *dev)
 	return 0;
 }
 
+/**
+ * acpi_device_sleep_wake - execute _DSW (Device Sleep Wake) or (deprecated in
+ *                          ACPI 3.0) _PSW (Power State Wake)
+ * @dev: Device to handle.
+ * @enable: 0 - disable, 1 - enable the wake capabilities of the device.
+ * @sleep_state: Target sleep state of the system.
+ * @dev_state: Target power state of the device.
+ *
+ * Execute _DSW (Device Sleep Wake) or (deprecated in ACPI 3.0) _PSW (Power
+ * State Wake) for the device, if present.  On failure reset the device's
+ * wakeup.flags.valid flag.
+ *
+ * RETURN VALUE:
+ * 0 if either _DSW or _PSW has been successfully executed
+ * 0 if neither _DSW nor _PSW has been found
+ * -ENODEV if the execution of either _DSW or _PSW has failed
+ */
+int acpi_device_sleep_wake(struct acpi_device *dev,
+                           int enable, int sleep_state, int dev_state)
+{
+	union acpi_object in_arg[3];
+	struct acpi_object_list arg_list = { 3, in_arg };
+	acpi_status status = AE_OK;
+
+	/*
+	 * Try to execute _DSW first.
+	 *
+	 * Three agruments are needed for the _DSW object:
+	 * Argument 0: enable/disable the wake capabilities
+	 * Argument 1: target system state
+	 * Argument 2: target device state
+	 * When _DSW object is called to disable the wake capabilities, maybe
+	 * the first argument is filled. The values of the other two agruments
+	 * are meaningless.
+	 */
+	in_arg[0].type = ACPI_TYPE_INTEGER;
+	in_arg[0].integer.value = enable;
+	in_arg[1].type = ACPI_TYPE_INTEGER;
+	in_arg[1].integer.value = sleep_state;
+	in_arg[2].type = ACPI_TYPE_INTEGER;
+	in_arg[2].integer.value = dev_state;
+	status = acpi_evaluate_object(dev->handle, "_DSW", &arg_list, NULL);
+	if (ACPI_SUCCESS(status)) {
+		return 0;
+	} else if (status != AE_NOT_FOUND) {
+		printk(KERN_ERR PREFIX "_DSW execution failed\n");
+		dev->wakeup.flags.valid = 0;
+		return -ENODEV;
+	}
+
+	/* Execute _PSW */
+	arg_list.count = 1;
+	in_arg[0].integer.value = enable;
+	status = acpi_evaluate_object(dev->handle, "_PSW", &arg_list, NULL);
+	if (ACPI_FAILURE(status) && (status != AE_NOT_FOUND)) {
+		printk(KERN_ERR PREFIX "_PSW execution failed\n");
+		dev->wakeup.flags.valid = 0;
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
 /*
  * Prepare a wakeup device, two steps (Ref ACPI 2.0:P229):
  * 1. Power on the power resources required for the wakeup device 
- * 2. Enable _PSW (power state wake) for the device if present
+ * 2. Execute _DSW (Device Sleep Wake) or (deprecated in ACPI 3.0) _PSW (Power
+ *    State Wake) for the device, if present
  */
-int acpi_enable_wakeup_device_power(struct acpi_device *dev)
+int acpi_enable_wakeup_device_power(struct acpi_device *dev, int sleep_state)
 {
-	union acpi_object arg = { ACPI_TYPE_INTEGER };
-	struct acpi_object_list arg_list = { 1, &arg };
-	acpi_status status = AE_OK;
-	int i;
-	int ret = 0;
+	int i, err;
 
 	if (!dev || !dev->wakeup.flags.valid)
-		return -1;
+		return -EINVAL;
+
+	/*
+	 * Do not execute the code below twice in a row without calling
+	 * acpi_disable_wakeup_device_power() in between for the same device
+	 */
+	if (dev->wakeup.flags.prepared)
+		return 0;
 
-	arg.integer.value = 1;
 	/* Open power resource */
 	for (i = 0; i < dev->wakeup.resources.count; i++) {
-		ret = acpi_power_on(dev->wakeup.resources.handles[i], dev);
+		int ret = acpi_power_on(dev->wakeup.resources.handles[i], dev);
 		if (ret) {
 			printk(KERN_ERR PREFIX "Transition power state\n");
 			dev->wakeup.flags.valid = 0;
-			return -1;
+			return -ENODEV;
 		}
 	}
 
-	/* Execute PSW */
-	status = acpi_evaluate_object(dev->handle, "_PSW", &arg_list, NULL);
-	if (ACPI_FAILURE(status) && (status != AE_NOT_FOUND)) {
-		printk(KERN_ERR PREFIX "Evaluate _PSW\n");
-		dev->wakeup.flags.valid = 0;
-		ret = -1;
-	}
+	/*
+	 * Passing 3 as the third argument below means the device may be placed
+	 * in arbitrary power state afterwards.
+	 */
+	err = acpi_device_sleep_wake(dev, 1, sleep_state, 3);
+	if (!err)
+		dev->wakeup.flags.prepared = 1;
 
-	return ret;
+	return err;
 }
 
 /*
  * Shutdown a wakeup device, counterpart of above method
- * 1. Disable _PSW (power state wake)
+ * 1. Execute _DSW (Device Sleep Wake) or (deprecated in ACPI 3.0) _PSW (Power
+ *    State Wake) for the device, if present
  * 2. Shutdown down the power resources
  */
 int acpi_disable_wakeup_device_power(struct acpi_device *dev)
 {
-	union acpi_object arg = { ACPI_TYPE_INTEGER };
-	struct acpi_object_list arg_list = { 1, &arg };
-	acpi_status status = AE_OK;
-	int i;
-	int ret = 0;
-
+	int i, ret;
 
 	if (!dev || !dev->wakeup.flags.valid)
-		return -1;
+		return -EINVAL;
 
-	arg.integer.value = 0;
-	/* Execute PSW */
-	status = acpi_evaluate_object(dev->handle, "_PSW", &arg_list, NULL);
-	if (ACPI_FAILURE(status) && (status != AE_NOT_FOUND)) {
-		printk(KERN_ERR PREFIX "Evaluate _PSW\n");
-		dev->wakeup.flags.valid = 0;
-		return -1;
-	}
+	/*
+	 * Do not execute the code below twice in a row without calling
+	 * acpi_enable_wakeup_device_power() in between for the same device
+	 */
+	if (!dev->wakeup.flags.prepared)
+		return 0;
+
+	dev->wakeup.flags.prepared = 0;
+
+	ret = acpi_device_sleep_wake(dev, 0, 0, 0);
+	if (ret)
+		return ret;
 
 	/* Close power resource */
 	for (i = 0; i < dev->wakeup.resources.count; i++) {
@@ -362,7 +428,7 @@ int acpi_disable_wakeup_device_power(struct acpi_device *dev)
 		if (ret) {
 			printk(KERN_ERR PREFIX "Transition power state\n");
 			dev->wakeup.flags.valid = 0;
-			return -1;
+			return -ENODEV;
 		}
 	}
 
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index 9dd0fa93b9e1..ec0f2d581ece 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -118,8 +118,31 @@ static const struct file_operations acpi_processor_info_fops = {
 	.release = single_release,
 };
 
-struct acpi_processor *processors[NR_CPUS];
+DEFINE_PER_CPU(struct acpi_processor *, processors);
 struct acpi_processor_errata errata __read_mostly;
+static int set_no_mwait(const struct dmi_system_id *id)
+{
+	printk(KERN_NOTICE PREFIX "%s detected - "
+		"disable mwait for CPU C-stetes\n", id->ident);
+	idle_nomwait = 1;
+	return 0;
+}
+
+static struct dmi_system_id __cpuinitdata processor_idle_dmi_table[] = {
+	{
+	set_no_mwait, "IFL91 board", {
+	DMI_MATCH(DMI_BIOS_VENDOR, "COMPAL"),
+	DMI_MATCH(DMI_SYS_VENDOR, "ZEPTO"),
+	DMI_MATCH(DMI_PRODUCT_VERSION, "3215W"),
+	DMI_MATCH(DMI_BOARD_NAME, "IFL91") }, NULL},
+	{
+	set_no_mwait, "Extensa 5220", {
+	DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
+	DMI_MATCH(DMI_SYS_VENDOR, "ACER"),
+	DMI_MATCH(DMI_PRODUCT_VERSION, "0100"),
+	DMI_MATCH(DMI_BOARD_NAME, "Columbia") }, NULL},
+	{},
+};
 
 /* --------------------------------------------------------------------------
                                 Errata Handling
@@ -265,7 +288,20 @@ static int acpi_processor_set_pdc(struct acpi_processor *pr)
 
 	if (!pdc_in)
 		return status;
+	if (idle_nomwait) {
+		/*
+		 * If mwait is disabled for CPU C-states, the C2C3_FFH access
+		 * mode will be disabled in the parameter of _PDC object.
+		 * Of course C1_FFH access mode will also be disabled.
+		 */
+		union acpi_object *obj;
+		u32 *buffer = NULL;
 
+		obj = pdc_in->pointer;
+		buffer = (u32 *)(obj->buffer.pointer);
+		buffer[2] &= ~(ACPI_PDC_C_C2C3_FFH | ACPI_PDC_C_C1_FFH);
+
+	}
 	status = acpi_evaluate_object(pr->handle, "_PDC", pdc_in, NULL);
 
 	if (ACPI_FAILURE(status))
@@ -614,14 +650,14 @@ static int acpi_processor_get_info(struct acpi_processor *pr, unsigned has_uid)
 	return 0;
 }
 
-static void *processor_device_array[NR_CPUS];
+static DEFINE_PER_CPU(void *, processor_device_array);
 
 static int __cpuinit acpi_processor_start(struct acpi_device *device)
 {
 	int result = 0;
 	acpi_status status = AE_OK;
 	struct acpi_processor *pr;
-
+	struct sys_device *sysdev;
 
 	pr = acpi_driver_data(device);
 
@@ -638,20 +674,24 @@ static int __cpuinit acpi_processor_start(struct acpi_device *device)
 	 * ACPI id of processors can be reported wrongly by the BIOS.
 	 * Don't trust it blindly
 	 */
-	if (processor_device_array[pr->id] != NULL &&
-	    processor_device_array[pr->id] != device) {
+	if (per_cpu(processor_device_array, pr->id) != NULL &&
+	    per_cpu(processor_device_array, pr->id) != device) {
 		printk(KERN_WARNING "BIOS reported wrong ACPI id "
 			"for the processor\n");
 		return -ENODEV;
 	}
-	processor_device_array[pr->id] = device;
+	per_cpu(processor_device_array, pr->id) = device;
 
-	processors[pr->id] = pr;
+	per_cpu(processors, pr->id) = pr;
 
 	result = acpi_processor_add_fs(device);
 	if (result)
 		goto end;
 
+	sysdev = get_cpu_sysdev(pr->id);
+	if (sysfs_create_link(&device->dev.kobj, &sysdev->kobj, "sysdev"))
+		return -EFAULT;
+
 	status = acpi_install_notify_handler(pr->handle, ACPI_DEVICE_NOTIFY,
 					     acpi_processor_notify, pr);
 
@@ -749,7 +789,7 @@ static int acpi_cpu_soft_notify(struct notifier_block *nfb,
 		unsigned long action, void *hcpu)
 {
 	unsigned int cpu = (unsigned long)hcpu;
-	struct acpi_processor *pr = processors[cpu];
+	struct acpi_processor *pr = per_cpu(processors, cpu);
 
 	if (action == CPU_ONLINE && pr) {
 		acpi_processor_ppc_has_changed(pr);
@@ -810,6 +850,8 @@ static int acpi_processor_remove(struct acpi_device *device, int type)
 	status = acpi_remove_notify_handler(pr->handle, ACPI_DEVICE_NOTIFY,
 					    acpi_processor_notify);
 
+	sysfs_remove_link(&device->dev.kobj, "sysdev");
+
 	acpi_processor_remove_fs(device);
 
 	if (pr->cdev) {
@@ -819,8 +861,8 @@ static int acpi_processor_remove(struct acpi_device *device, int type)
 		pr->cdev = NULL;
 	}
 
-	processors[pr->id] = NULL;
-	processor_device_array[pr->id] = NULL;
+	per_cpu(processors, pr->id) = NULL;
+	per_cpu(processor_device_array, pr->id) = NULL;
 	kfree(pr);
 
 	return 0;
@@ -1014,9 +1056,9 @@ static acpi_status acpi_processor_hotadd_init(acpi_handle handle, int *p_cpu)
 
 static int acpi_processor_handle_eject(struct acpi_processor *pr)
 {
-	if (cpu_online(pr->id)) {
-		return (-EINVAL);
-	}
+	if (cpu_online(pr->id))
+		cpu_down(pr->id);
+
 	arch_unregister_cpu(pr->id);
 	acpi_unmap_lsapic(pr->id);
 	return (0);
@@ -1068,8 +1110,6 @@ static int __init acpi_processor_init(void)
 {
 	int result = 0;
 
-
-	memset(&processors, 0, sizeof(processors));
 	memset(&errata, 0, sizeof(errata));
 
 #ifdef CONFIG_SMP
@@ -1083,6 +1123,11 @@ static int __init acpi_processor_init(void)
 		return -ENOMEM;
 	acpi_processor_dir->owner = THIS_MODULE;
 
+	/*
+	 * Check whether the system is DMI table. If yes, OSPM
+	 * should not use mwait for CPU-states.
+	 */
+	dmi_check_system(processor_idle_dmi_table);
 	result = cpuidle_register_driver(&acpi_idle_driver);
 	if (result < 0)
 		goto out_proc;
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 4976e5db2b3f..d592dbb1d12a 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -41,6 +41,7 @@
 #include <linux/pm_qos_params.h>
 #include <linux/clockchips.h>
 #include <linux/cpuidle.h>
+#include <linux/cpuidle.h>
 
 /*
  * Include the apic definitions for x86 to have the APIC timer related defines
@@ -57,6 +58,7 @@
 
 #include <acpi/acpi_bus.h>
 #include <acpi/processor.h>
+#include <asm/processor.h>
 
 #define ACPI_PROCESSOR_COMPONENT        0x01000000
 #define ACPI_PROCESSOR_CLASS            "processor"
@@ -401,7 +403,7 @@ static void acpi_processor_idle(void)
 	 */
 	local_irq_disable();
 
-	pr = processors[smp_processor_id()];
+	pr = __get_cpu_var(processors);
 	if (!pr) {
 		local_irq_enable();
 		return;
@@ -955,6 +957,21 @@ static int acpi_processor_get_power_info_cst(struct acpi_processor *pr)
 			} else {
 				continue;
 			}
+			if (cx.type == ACPI_STATE_C1 &&
+					(idle_halt || idle_nomwait)) {
+				/*
+				 * In most cases the C1 space_id obtained from
+				 * _CST object is FIXED_HARDWARE access mode.
+				 * But when the option of idle=halt is added,
+				 * the entry_method type should be changed from
+				 * CSTATE_FFH to CSTATE_HALT.
+				 * When the option of idle=nomwait is added,
+				 * the C1 entry_method type should be
+				 * CSTATE_HALT.
+				 */
+				cx.entry_method = ACPI_CSTATE_HALT;
+				snprintf(cx.desc, ACPI_CX_DESC_LEN, "ACPI HLT");
+			}
 		} else {
 			snprintf(cx.desc, ACPI_CX_DESC_LEN, "ACPI IOPORT 0x%x",
 				 cx.address);
@@ -1431,7 +1448,7 @@ static int acpi_idle_enter_c1(struct cpuidle_device *dev,
 	struct acpi_processor *pr;
 	struct acpi_processor_cx *cx = cpuidle_get_statedata(state);
 
-	pr = processors[smp_processor_id()];
+	pr = __get_cpu_var(processors);
 
 	if (unlikely(!pr))
 		return 0;
@@ -1471,7 +1488,7 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
 	u32 t1, t2;
 	int sleep_ticks = 0;
 
-	pr = processors[smp_processor_id()];
+	pr = __get_cpu_var(processors);
 
 	if (unlikely(!pr))
 		return 0;
@@ -1549,7 +1566,7 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
 	u32 t1, t2;
 	int sleep_ticks = 0;
 
-	pr = processors[smp_processor_id()];
+	pr = __get_cpu_var(processors);
 
 	if (unlikely(!pr))
 		return 0;
@@ -1780,6 +1797,15 @@ int __cpuinit acpi_processor_power_init(struct acpi_processor *pr,
 		return 0;
 
 	if (!first_run) {
+		if (idle_halt) {
+			/*
+			 * When the boot option of "idle=halt" is added, halt
+			 * is used for CPU IDLE.
+			 * In such case C2/C3 is meaningless. So the max_cstate
+			 * is set to one.
+			 */
+			max_cstate = 1;
+		}
 		dmi_check_system(processor_power_dmi_table);
 		max_cstate = acpi_processor_cstate_check(max_cstate);
 		if (max_cstate < ACPI_C_STATES_MAX)
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index d80b2d1441af..b4749969c6b4 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -89,7 +89,7 @@ static int acpi_processor_ppc_notifier(struct notifier_block *nb,
 	if (event != CPUFREQ_INCOMPATIBLE)
 		goto out;
 
-	pr = processors[policy->cpu];
+	pr = per_cpu(processors, policy->cpu);
 	if (!pr || !pr->performance)
 		goto out;
 
@@ -572,7 +572,7 @@ int acpi_processor_preregister_performance(
 
 	/* Call _PSD for all CPUs */
 	for_each_possible_cpu(i) {
-		pr = processors[i];
+		pr = per_cpu(processors, i);
 		if (!pr) {
 			/* Look only at processors in ACPI namespace */
 			continue;
@@ -603,7 +603,7 @@ int acpi_processor_preregister_performance(
 	 * domain info.
 	 */
 	for_each_possible_cpu(i) {
-		pr = processors[i];
+		pr = per_cpu(processors, i);
 		if (!pr)
 			continue;
 
@@ -624,7 +624,7 @@ int acpi_processor_preregister_performance(
 
 	cpus_clear(covered_cpus);
 	for_each_possible_cpu(i) {
-		pr = processors[i];
+		pr = per_cpu(processors, i);
 		if (!pr)
 			continue;
 
@@ -651,7 +651,7 @@ int acpi_processor_preregister_performance(
 			if (i == j)
 				continue;
 
-			match_pr = processors[j];
+			match_pr = per_cpu(processors, j);
 			if (!match_pr)
 				continue;
 
@@ -680,7 +680,7 @@ int acpi_processor_preregister_performance(
 			if (i == j)
 				continue;
 
-			match_pr = processors[j];
+			match_pr = per_cpu(processors, j);
 			if (!match_pr)
 				continue;
 
@@ -697,7 +697,7 @@ int acpi_processor_preregister_performance(
 
 err_ret:
 	for_each_possible_cpu(i) {
-		pr = processors[i];
+		pr = per_cpu(processors, i);
 		if (!pr || !pr->performance)
 			continue;
 
@@ -728,7 +728,7 @@ acpi_processor_register_performance(struct acpi_processor_performance
 
 	mutex_lock(&performance_mutex);
 
-	pr = processors[cpu];
+	pr = per_cpu(processors, cpu);
 	if (!pr) {
 		mutex_unlock(&performance_mutex);
 		return -ENODEV;
@@ -766,7 +766,7 @@ acpi_processor_unregister_performance(struct acpi_processor_performance
 
 	mutex_lock(&performance_mutex);
 
-	pr = processors[cpu];
+	pr = per_cpu(processors, cpu);
 	if (!pr) {
 		mutex_unlock(&performance_mutex);
 		return;
diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c
index bb06738860c4..0622ace05220 100644
--- a/drivers/acpi/processor_throttling.c
+++ b/drivers/acpi/processor_throttling.c
@@ -71,7 +71,7 @@ static int acpi_processor_update_tsd_coord(void)
 	 * coordination between all CPUs.
 	 */
 	for_each_possible_cpu(i) {
-		pr = processors[i];
+		pr = per_cpu(processors, i);
 		if (!pr)
 			continue;
 
@@ -93,7 +93,7 @@ static int acpi_processor_update_tsd_coord(void)
 
 	cpus_clear(covered_cpus);
 	for_each_possible_cpu(i) {
-		pr = processors[i];
+		pr = per_cpu(processors, i);
 		if (!pr)
 			continue;
 
@@ -119,7 +119,7 @@ static int acpi_processor_update_tsd_coord(void)
 			if (i == j)
 				continue;
 
-			match_pr = processors[j];
+			match_pr = per_cpu(processors, j);
 			if (!match_pr)
 				continue;
 
@@ -152,7 +152,7 @@ static int acpi_processor_update_tsd_coord(void)
 			if (i == j)
 				continue;
 
-			match_pr = processors[j];
+			match_pr = per_cpu(processors, j);
 			if (!match_pr)
 				continue;
 
@@ -172,7 +172,7 @@ static int acpi_processor_update_tsd_coord(void)
 
 err_ret:
 	for_each_possible_cpu(i) {
-		pr = processors[i];
+		pr = per_cpu(processors, i);
 		if (!pr)
 			continue;
 
@@ -214,7 +214,7 @@ static int acpi_processor_throttling_notifier(unsigned long event, void *data)
 	struct acpi_processor_throttling *p_throttling;
 
 	cpu = p_tstate->cpu;
-	pr = processors[cpu];
+	pr = per_cpu(processors, cpu);
 	if (!pr) {
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Invalid pr pointer\n"));
 		return 0;
@@ -1035,7 +1035,7 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state)
 		 * cpus.
 		 */
 		for_each_cpu_mask(i, online_throttling_cpus) {
-			match_pr = processors[i];
+			match_pr = per_cpu(processors, i);
 			/*
 			 * If the pointer is invalid, we will report the
 			 * error message and continue.
@@ -1232,7 +1232,10 @@ static ssize_t acpi_processor_write_throttling(struct file *file,
 	int result = 0;
 	struct seq_file *m = file->private_data;
 	struct acpi_processor *pr = m->private;
-	char state_string[12] = { '\0' };
+	char state_string[5] = "";
+	char *charp = NULL;
+	size_t state_val = 0;
+	char tmpbuf[5] = "";
 
 	if (!pr || (count > sizeof(state_string) - 1))
 		return -EINVAL;
@@ -1241,10 +1244,23 @@ static ssize_t acpi_processor_write_throttling(struct file *file,
 		return -EFAULT;
 
 	state_string[count] = '\0';
+	if ((count > 0) && (state_string[count-1] == '\n'))
+		state_string[count-1] = '\0';
 
-	result = acpi_processor_set_throttling(pr,
-					       simple_strtoul(state_string,
-							      NULL, 0));
+	charp = state_string;
+	if ((state_string[0] == 't') || (state_string[0] == 'T'))
+		charp++;
+
+	state_val = simple_strtoul(charp, NULL, 0);
+	if (state_val >= pr->throttling.state_count)
+		return -EINVAL;
+
+	snprintf(tmpbuf, 5, "%zu", state_val);
+
+	if (strcmp(tmpbuf, charp) != 0)
+		return -EINVAL;
+
+	result = acpi_processor_set_throttling(pr, state_val);
 	if (result)
 		return result;
 
diff --git a/drivers/acpi/reboot.c b/drivers/acpi/reboot.c
new file mode 100644
index 000000000000..a6b662c00b67
--- /dev/null
+++ b/drivers/acpi/reboot.c
@@ -0,0 +1,50 @@
+
+#include <linux/pci.h>
+#include <linux/acpi.h>
+#include <acpi/reboot.h>
+
+void acpi_reboot(void)
+{
+	struct acpi_generic_address *rr;
+	struct pci_bus *bus0;
+	u8 reset_value;
+	unsigned int devfn;
+
+	if (acpi_disabled)
+		return;
+
+	rr = &acpi_gbl_FADT.reset_register;
+
+	/* Is the reset register supported? */
+	if (!(acpi_gbl_FADT.flags & ACPI_FADT_RESET_REGISTER) ||
+	    rr->bit_width != 8 || rr->bit_offset != 0)
+		return;
+
+	reset_value = acpi_gbl_FADT.reset_value;
+
+	/* The reset register can only exist in I/O, Memory or PCI config space
+	 * on a device on bus 0. */
+	switch (rr->space_id) {
+	case ACPI_ADR_SPACE_PCI_CONFIG:
+		/* The reset register can only live on bus 0. */
+		bus0 = pci_find_bus(0, 0);
+		if (!bus0)
+			return;
+		/* Form PCI device/function pair. */
+		devfn = PCI_DEVFN((rr->address >> 32) & 0xffff,
+				  (rr->address >> 16) & 0xffff);
+		printk(KERN_DEBUG "Resetting with ACPI PCI RESET_REG.");
+		/* Write the value that resets us. */
+		pci_bus_write_config_byte(bus0, devfn,
+				(rr->address & 0xffff), reset_value);
+		break;
+
+	case ACPI_ADR_SPACE_SYSTEM_MEMORY:
+	case ACPI_ADR_SPACE_SYSTEM_IO:
+		printk(KERN_DEBUG "ACPI MEMORY or I/O RESET_REG.\n");
+		acpi_hw_low_level_write(8, reset_value, rr);
+		break;
+	}
+	/* Wait ten seconds */
+	acpi_os_stall(10000000);
+}
diff --git a/drivers/acpi/resources/rscalc.c b/drivers/acpi/resources/rscalc.c
index 8a112d11d491..f61ebc679e66 100644
--- a/drivers/acpi/resources/rscalc.c
+++ b/drivers/acpi/resources/rscalc.c
@@ -73,7 +73,7 @@ acpi_rs_stream_option_length(u32 resource_length, u32 minimum_total_length);
 
 static u8 acpi_rs_count_set_bits(u16 bit_field)
 {
-	acpi_native_uint bits_set;
+	u8 bits_set;
 
 	ACPI_FUNCTION_ENTRY();
 
@@ -84,7 +84,7 @@ static u8 acpi_rs_count_set_bits(u16 bit_field)
 		bit_field &= (u16) (bit_field - 1);
 	}
 
-	return ((u8) bits_set);
+	return bits_set;
 }
 
 /*******************************************************************************
diff --git a/drivers/acpi/resources/rscreate.c b/drivers/acpi/resources/rscreate.c
index faddaee1bc07..7804a8c40e7a 100644
--- a/drivers/acpi/resources/rscreate.c
+++ b/drivers/acpi/resources/rscreate.c
@@ -181,9 +181,9 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
 	}
 
 	/*
-	 * Loop through the ACPI_INTERNAL_OBJECTS - Each object
-	 * should be a package that in turn contains an
-	 * acpi_integer Address, a u8 Pin, a Name and a u8 source_index.
+	 * Loop through the ACPI_INTERNAL_OBJECTS - Each object should be a
+	 * package that in turn contains an acpi_integer Address, a u8 Pin,
+	 * a Name, and a u8 source_index.
 	 */
 	top_object_list = package_object->package.elements;
 	number_of_elements = package_object->package.count;
@@ -240,9 +240,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
 		/* 1) First subobject: Dereference the PRT.Address */
 
 		obj_desc = sub_object_list[0];
-		if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
-			user_prt->address = obj_desc->integer.value;
-		} else {
+		if (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_INTEGER) {
 			ACPI_ERROR((AE_INFO,
 				    "(PRT[%X].Address) Need Integer, found %s",
 				    index,
@@ -250,12 +248,12 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
 			return_ACPI_STATUS(AE_BAD_DATA);
 		}
 
+		user_prt->address = obj_desc->integer.value;
+
 		/* 2) Second subobject: Dereference the PRT.Pin */
 
 		obj_desc = sub_object_list[1];
-		if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
-			user_prt->pin = (u32) obj_desc->integer.value;
-		} else {
+		if (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_INTEGER) {
 			ACPI_ERROR((AE_INFO,
 				    "(PRT[%X].Pin) Need Integer, found %s",
 				    index,
@@ -284,6 +282,25 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
 			}
 		}
 
+		user_prt->pin = (u32) obj_desc->integer.value;
+
+		/*
+		 * If the BIOS has erroneously reversed the _PRT source_name (index 2)
+		 * and the source_index (index 3), fix it. _PRT is important enough to
+		 * workaround this BIOS error. This also provides compatibility with
+		 * other ACPI implementations.
+		 */
+		obj_desc = sub_object_list[3];
+		if (!obj_desc
+		    || (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_INTEGER)) {
+			sub_object_list[3] = sub_object_list[2];
+			sub_object_list[2] = obj_desc;
+
+			ACPI_WARNING((AE_INFO,
+				      "(PRT[%X].Source) SourceName and SourceIndex are reversed, fixed",
+				      index));
+		}
+
 		/*
 		 * 3) Third subobject: Dereference the PRT.source_name
 		 * The name may be unresolved (slack mode), so allow a null object
@@ -364,9 +381,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
 		/* 4) Fourth subobject: Dereference the PRT.source_index */
 
 		obj_desc = sub_object_list[source_index_index];
-		if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
-			user_prt->source_index = (u32) obj_desc->integer.value;
-		} else {
+		if (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_INTEGER) {
 			ACPI_ERROR((AE_INFO,
 				    "(PRT[%X].SourceIndex) Need Integer, found %s",
 				    index,
@@ -374,6 +389,8 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
 			return_ACPI_STATUS(AE_BAD_DATA);
 		}
 
+		user_prt->source_index = (u32) obj_desc->integer.value;
+
 		/* Point to the next union acpi_operand_object in the top level package */
 
 		top_object_list++;
diff --git a/drivers/acpi/resources/rsmisc.c b/drivers/acpi/resources/rsmisc.c
index de1ac3881b22..96a6c0353255 100644
--- a/drivers/acpi/resources/rsmisc.c
+++ b/drivers/acpi/resources/rsmisc.c
@@ -82,7 +82,7 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource,
 
 	ACPI_FUNCTION_TRACE(rs_convert_aml_to_resource);
 
-	if (((acpi_native_uint) resource) & 0x3) {
+	if (((acpi_size) resource) & 0x3) {
 
 		/* Each internal resource struct is expected to be 32-bit aligned */
 
diff --git a/drivers/acpi/resources/rsutils.c b/drivers/acpi/resources/rsutils.c
index befe2302f41b..f7b3bcd59ba7 100644
--- a/drivers/acpi/resources/rsutils.c
+++ b/drivers/acpi/resources/rsutils.c
@@ -62,7 +62,7 @@ ACPI_MODULE_NAME("rsutils")
  ******************************************************************************/
 u8 acpi_rs_decode_bitmask(u16 mask, u8 * list)
 {
-	acpi_native_uint i;
+	u8 i;
 	u8 bit_count;
 
 	ACPI_FUNCTION_ENTRY();
@@ -71,7 +71,7 @@ u8 acpi_rs_decode_bitmask(u16 mask, u8 * list)
 
 	for (i = 0, bit_count = 0; mask; i++) {
 		if (mask & 0x0001) {
-			list[bit_count] = (u8) i;
+			list[bit_count] = i;
 			bit_count++;
 		}
 
@@ -96,8 +96,8 @@ u8 acpi_rs_decode_bitmask(u16 mask, u8 * list)
 
 u16 acpi_rs_encode_bitmask(u8 * list, u8 count)
 {
-	acpi_native_uint i;
-	acpi_native_uint mask;
+	u32 i;
+	u16 mask;
 
 	ACPI_FUNCTION_ENTRY();
 
@@ -107,7 +107,7 @@ u16 acpi_rs_encode_bitmask(u8 * list, u8 count)
 		mask |= (0x1 << list[i]);
 	}
 
-	return ((u16) mask);
+	return mask;
 }
 
 /*******************************************************************************
@@ -130,7 +130,7 @@ u16 acpi_rs_encode_bitmask(u8 * list, u8 count)
 void
 acpi_rs_move_data(void *destination, void *source, u16 item_count, u8 move_type)
 {
-	acpi_native_uint i;
+	u32 i;
 
 	ACPI_FUNCTION_ENTRY();
 
@@ -679,7 +679,6 @@ acpi_rs_set_srs_method_data(struct acpi_namespace_node *node,
 	info->prefix_node = node;
 	info->pathname = METHOD_NAME__SRS;
 	info->parameters = args;
-	info->parameter_type = ACPI_PARAM_ARGS;
 	info->flags = ACPI_IGNORE_RETURN_VALUE;
 
 	/*
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 6d85289f1c12..f3132aa47a69 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -6,6 +6,8 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/acpi.h>
+#include <linux/signal.h>
+#include <linux/kthread.h>
 
 #include <acpi/acpi_drivers.h>
 #include <acpi/acinterp.h>	/* for acpi_ex_eisa_id_to_string() */
@@ -92,17 +94,37 @@ acpi_device_modalias_show(struct device *dev, struct device_attribute *attr, cha
 }
 static DEVICE_ATTR(modalias, 0444, acpi_device_modalias_show, NULL);
 
-static int acpi_eject_operation(acpi_handle handle, int lockable)
+static int acpi_bus_hot_remove_device(void *context)
 {
+	struct acpi_device *device;
+	acpi_handle handle = context;
 	struct acpi_object_list arg_list;
 	union acpi_object arg;
 	acpi_status status = AE_OK;
 
-	/*
-	 * TBD: evaluate _PS3?
-	 */
+	if (acpi_bus_get_device(handle, &device))
+		return 0;
+
+	if (!device)
+		return 0;
+
+	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+		"Hot-removing device %s...\n", device->dev.bus_id));
+
 
-	if (lockable) {
+	if (acpi_bus_trim(device, 1)) {
+		ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+				"Removing device failed\n"));
+		return -1;
+	}
+
+	/* power off device */
+	status = acpi_evaluate_object(handle, "_PS3", NULL, NULL);
+	if (ACPI_FAILURE(status) && status != AE_NOT_FOUND)
+		ACPI_DEBUG_PRINT((ACPI_DB_WARN,
+				"Power-off device failed\n"));
+
+	if (device->flags.lockable) {
 		arg_list.count = 1;
 		arg_list.pointer = &arg;
 		arg.type = ACPI_TYPE_INTEGER;
@@ -118,26 +140,22 @@ static int acpi_eject_operation(acpi_handle handle, int lockable)
 	/*
 	 * TBD: _EJD support.
 	 */
-
 	status = acpi_evaluate_object(handle, "_EJ0", &arg_list, NULL);
-	if (ACPI_FAILURE(status)) {
-		return (-ENODEV);
-	}
+	if (ACPI_FAILURE(status))
+		return -ENODEV;
 
-	return (0);
+	return 0;
 }
 
 static ssize_t
 acpi_eject_store(struct device *d, struct device_attribute *attr,
 		const char *buf, size_t count)
 {
-	int result;
 	int ret = count;
-	int islockable;
 	acpi_status status;
-	acpi_handle handle;
 	acpi_object_type type = 0;
 	struct acpi_device *acpi_device = to_acpi_device(d);
+	struct task_struct *task;
 
 	if ((!count) || (buf[0] != '1')) {
 		return -EINVAL;
@@ -154,18 +172,12 @@ acpi_eject_store(struct device *d, struct device_attribute *attr,
 		goto err;
 	}
 
-	islockable = acpi_device->flags.lockable;
-	handle = acpi_device->handle;
-
-	result = acpi_bus_trim(acpi_device, 1);
-
-	if (!result)
-		result = acpi_eject_operation(handle, islockable);
-
-	if (result) {
-		ret = -EBUSY;
-	}
-      err:
+	/* remove the device in another thread to fix the deadlock issue */
+	task = kthread_run(acpi_bus_hot_remove_device,
+				acpi_device->handle, "acpi_hot_remove_device");
+	if (IS_ERR(task))
+		ret = PTR_ERR(task);
+err:
 	return ret;
 }
 
@@ -691,9 +703,7 @@ static int acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
 	acpi_status status = 0;
 	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
 	union acpi_object *package = NULL;
-	union acpi_object in_arg[3];
-	struct acpi_object_list arg_list = { 3, in_arg };
-	acpi_status psw_status = AE_OK;
+	int psw_error;
 
 	struct acpi_device_id button_device_ids[] = {
 		{"PNP0C0D", 0},
@@ -725,39 +735,11 @@ static int acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
 	 * So it is necessary to call _DSW object first. Only when it is not
 	 * present will the _PSW object used.
 	 */
-	/*
-	 * Three agruments are needed for the _DSW object.
-	 * Argument 0: enable/disable the wake capabilities
-	 * When _DSW object is called to disable the wake capabilities, maybe
-	 * the first argument is filled. The value of the other two agruments
-	 * is meaningless.
-	 */
-	in_arg[0].type = ACPI_TYPE_INTEGER;
-	in_arg[0].integer.value = 0;
-	in_arg[1].type = ACPI_TYPE_INTEGER;
-	in_arg[1].integer.value = 0;
-	in_arg[2].type = ACPI_TYPE_INTEGER;
-	in_arg[2].integer.value = 0;
-	psw_status = acpi_evaluate_object(device->handle, "_DSW",
-						&arg_list, NULL);
-	if (ACPI_FAILURE(psw_status) && (psw_status != AE_NOT_FOUND))
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "error in evaluate _DSW\n"));
-	/*
-	 * When the _DSW object is not present, OSPM will call _PSW object.
-	 */
-	if (psw_status == AE_NOT_FOUND) {
-		/*
-		 * Only one agruments is required for the _PSW object.
-		 * agrument 0: enable/disable the wake capabilities
-		 */
-		arg_list.count = 1;
-		in_arg[0].integer.value = 0;
-		psw_status = acpi_evaluate_object(device->handle, "_PSW",
-						&arg_list, NULL);
-		if (ACPI_FAILURE(psw_status) && (psw_status != AE_NOT_FOUND))
-			ACPI_DEBUG_PRINT((ACPI_DB_INFO, "error in "
-						"evaluate _PSW\n"));
-	}
+	psw_error = acpi_device_sleep_wake(device, 0, 0, 0);
+	if (psw_error)
+		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+				"error in _DSW or _PSW evaluation\n"));
+
 	/* Power button, Lid switch always enable wakeup */
 	if (!acpi_match_device_ids(device, button_device_ids))
 		device->wakeup.flags.run_wake = 1;
diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c
index 495c63a3e0af..0489a7d1d42c 100644
--- a/drivers/acpi/sleep/main.c
+++ b/drivers/acpi/sleep/main.c
@@ -24,10 +24,6 @@
 
 u8 sleep_states[ACPI_S_STATE_COUNT];
 
-#ifdef CONFIG_PM_SLEEP
-static u32 acpi_target_sleep_state = ACPI_STATE_S0;
-#endif
-
 static int acpi_sleep_prepare(u32 acpi_state)
 {
 #ifdef CONFIG_ACPI_SLEEP
@@ -49,9 +45,96 @@ static int acpi_sleep_prepare(u32 acpi_state)
 	return 0;
 }
 
-#ifdef CONFIG_SUSPEND
-static struct platform_suspend_ops acpi_suspend_ops;
+#ifdef CONFIG_PM_SLEEP
+static u32 acpi_target_sleep_state = ACPI_STATE_S0;
+
+/*
+ * ACPI 1.0 wants us to execute _PTS before suspending devices, so we allow the
+ * user to request that behavior by using the 'acpi_old_suspend_ordering'
+ * kernel command line option that causes the following variable to be set.
+ */
+static bool old_suspend_ordering;
 
+void __init acpi_old_suspend_ordering(void)
+{
+	old_suspend_ordering = true;
+}
+
+/**
+ *	acpi_pm_disable_gpes - Disable the GPEs.
+ */
+static int acpi_pm_disable_gpes(void)
+{
+	acpi_hw_disable_all_gpes();
+	return 0;
+}
+
+/**
+ *	__acpi_pm_prepare - Prepare the platform to enter the target state.
+ *
+ *	If necessary, set the firmware waking vector and do arch-specific
+ *	nastiness to get the wakeup code to the waking vector.
+ */
+static int __acpi_pm_prepare(void)
+{
+	int error = acpi_sleep_prepare(acpi_target_sleep_state);
+
+	if (error)
+		acpi_target_sleep_state = ACPI_STATE_S0;
+	return error;
+}
+
+/**
+ *	acpi_pm_prepare - Prepare the platform to enter the target sleep
+ *		state and disable the GPEs.
+ */
+static int acpi_pm_prepare(void)
+{
+	int error = __acpi_pm_prepare();
+
+	if (!error)
+		acpi_hw_disable_all_gpes();
+	return error;
+}
+
+/**
+ *	acpi_pm_finish - Instruct the platform to leave a sleep state.
+ *
+ *	This is called after we wake back up (or if entering the sleep state
+ *	failed).
+ */
+static void acpi_pm_finish(void)
+{
+	u32 acpi_state = acpi_target_sleep_state;
+
+	if (acpi_state == ACPI_STATE_S0)
+		return;
+
+	printk(KERN_INFO PREFIX "Waking up from system sleep state S%d\n",
+		acpi_state);
+	acpi_disable_wakeup_device(acpi_state);
+	acpi_leave_sleep_state(acpi_state);
+
+	/* reset firmware waking vector */
+	acpi_set_firmware_waking_vector((acpi_physical_address) 0);
+
+	acpi_target_sleep_state = ACPI_STATE_S0;
+}
+
+/**
+ *	acpi_pm_end - Finish up suspend sequence.
+ */
+static void acpi_pm_end(void)
+{
+	/*
+	 * This is necessary in case acpi_pm_finish() is not called during a
+	 * failing transition to a sleep state.
+	 */
+	acpi_target_sleep_state = ACPI_STATE_S0;
+}
+#endif /* CONFIG_PM_SLEEP */
+
+#ifdef CONFIG_SUSPEND
 extern void do_suspend_lowlevel(void);
 
 static u32 acpi_suspend_states[] = {
@@ -61,13 +144,10 @@ static u32 acpi_suspend_states[] = {
 	[PM_SUSPEND_MAX] = ACPI_STATE_S5
 };
 
-static int init_8259A_after_S1;
-
 /**
  *	acpi_suspend_begin - Set the target system sleep state to the state
  *		associated with given @pm_state, if supported.
  */
-
 static int acpi_suspend_begin(suspend_state_t pm_state)
 {
 	u32 acpi_state = acpi_suspend_states[pm_state];
@@ -84,25 +164,6 @@ static int acpi_suspend_begin(suspend_state_t pm_state)
 }
 
 /**
- *	acpi_suspend_prepare - Do preliminary suspend work.
- *
- *	If necessary, set the firmware waking vector and do arch-specific
- *	nastiness to get the wakeup code to the waking vector.
- */
-
-static int acpi_suspend_prepare(void)
-{
-	int error = acpi_sleep_prepare(acpi_target_sleep_state);
-
-	if (error) {
-		acpi_target_sleep_state = ACPI_STATE_S0;
-		return error;
-	}
-
-	return ACPI_SUCCESS(acpi_hw_disable_all_gpes()) ? 0 : -EFAULT;
-}
-
-/**
  *	acpi_suspend_enter - Actually enter a sleep state.
  *	@pm_state: ignored
  *
@@ -110,7 +171,6 @@ static int acpi_suspend_prepare(void)
  *	assembly, which in turn call acpi_enter_sleep_state().
  *	It's unfortunate, but it works. Please fix if you're feeling frisky.
  */
-
 static int acpi_suspend_enter(suspend_state_t pm_state)
 {
 	acpi_status status = AE_OK;
@@ -167,46 +227,6 @@ static int acpi_suspend_enter(suspend_state_t pm_state)
 	return ACPI_SUCCESS(status) ? 0 : -EFAULT;
 }
 
-/**
- *	acpi_suspend_finish - Instruct the platform to leave a sleep state.
- *
- *	This is called after we wake back up (or if entering the sleep state
- *	failed). 
- */
-
-static void acpi_suspend_finish(void)
-{
-	u32 acpi_state = acpi_target_sleep_state;
-
-	acpi_disable_wakeup_device(acpi_state);
-	acpi_leave_sleep_state(acpi_state);
-
-	/* reset firmware waking vector */
-	acpi_set_firmware_waking_vector((acpi_physical_address) 0);
-
-	acpi_target_sleep_state = ACPI_STATE_S0;
-
-#ifdef CONFIG_X86
-	if (init_8259A_after_S1) {
-		printk("Broken toshiba laptop -> kicking interrupts\n");
-		init_8259A(0);
-	}
-#endif
-}
-
-/**
- *	acpi_suspend_end - Finish up suspend sequence.
- */
-
-static void acpi_suspend_end(void)
-{
-	/*
-	 * This is necessary in case acpi_suspend_finish() is not called during a
-	 * failing transition to a sleep state.
-	 */
-	acpi_target_sleep_state = ACPI_STATE_S0;
-}
-
 static int acpi_suspend_state_valid(suspend_state_t pm_state)
 {
 	u32 acpi_state;
@@ -226,30 +246,39 @@ static int acpi_suspend_state_valid(suspend_state_t pm_state)
 static struct platform_suspend_ops acpi_suspend_ops = {
 	.valid = acpi_suspend_state_valid,
 	.begin = acpi_suspend_begin,
-	.prepare = acpi_suspend_prepare,
+	.prepare = acpi_pm_prepare,
 	.enter = acpi_suspend_enter,
-	.finish = acpi_suspend_finish,
-	.end = acpi_suspend_end,
+	.finish = acpi_pm_finish,
+	.end = acpi_pm_end,
 };
 
-/*
- * Toshiba fails to preserve interrupts over S1, reinitialization
- * of 8259 is needed after S1 resume.
+/**
+ *	acpi_suspend_begin_old - Set the target system sleep state to the
+ *		state associated with given @pm_state, if supported, and
+ *		execute the _PTS control method.  This function is used if the
+ *		pre-ACPI 2.0 suspend ordering has been requested.
  */
-static int __init init_ints_after_s1(const struct dmi_system_id *d)
+static int acpi_suspend_begin_old(suspend_state_t pm_state)
 {
-	printk(KERN_WARNING "%s with broken S1 detected.\n", d->ident);
-	init_8259A_after_S1 = 1;
-	return 0;
+	int error = acpi_suspend_begin(pm_state);
+
+	if (!error)
+		error = __acpi_pm_prepare();
+	return error;
 }
 
-static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
-	{
-	 .callback = init_ints_after_s1,
-	 .ident = "Toshiba Satellite 4030cdt",
-	 .matches = {DMI_MATCH(DMI_PRODUCT_NAME, "S4030CDT/4.3"),},
-	 },
-	{},
+/*
+ * The following callbacks are used if the pre-ACPI 2.0 suspend ordering has
+ * been requested.
+ */
+static struct platform_suspend_ops acpi_suspend_ops_old = {
+	.valid = acpi_suspend_state_valid,
+	.begin = acpi_suspend_begin_old,
+	.prepare = acpi_pm_disable_gpes,
+	.enter = acpi_suspend_enter,
+	.finish = acpi_pm_finish,
+	.end = acpi_pm_end,
+	.recover = acpi_pm_finish,
 };
 #endif /* CONFIG_SUSPEND */
 
@@ -257,22 +286,9 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
 static int acpi_hibernation_begin(void)
 {
 	acpi_target_sleep_state = ACPI_STATE_S4;
-
 	return 0;
 }
 
-static int acpi_hibernation_prepare(void)
-{
-	int error = acpi_sleep_prepare(ACPI_STATE_S4);
-
-	if (error) {
-		acpi_target_sleep_state = ACPI_STATE_S0;
-		return error;
-	}
-
-	return ACPI_SUCCESS(acpi_hw_disable_all_gpes()) ? 0 : -EFAULT;
-}
-
 static int acpi_hibernation_enter(void)
 {
 	acpi_status status = AE_OK;
@@ -302,52 +318,55 @@ static void acpi_hibernation_leave(void)
 	acpi_leave_sleep_state_prep(ACPI_STATE_S4);
 }
 
-static void acpi_hibernation_finish(void)
+static void acpi_pm_enable_gpes(void)
 {
-	acpi_disable_wakeup_device(ACPI_STATE_S4);
-	acpi_leave_sleep_state(ACPI_STATE_S4);
-
-	/* reset firmware waking vector */
-	acpi_set_firmware_waking_vector((acpi_physical_address) 0);
-
-	acpi_target_sleep_state = ACPI_STATE_S0;
+	acpi_hw_enable_all_runtime_gpes();
 }
 
-static void acpi_hibernation_end(void)
-{
-	/*
-	 * This is necessary in case acpi_hibernation_finish() is not called
-	 * during a failing transition to the sleep state.
-	 */
-	acpi_target_sleep_state = ACPI_STATE_S0;
-}
+static struct platform_hibernation_ops acpi_hibernation_ops = {
+	.begin = acpi_hibernation_begin,
+	.end = acpi_pm_end,
+	.pre_snapshot = acpi_pm_prepare,
+	.finish = acpi_pm_finish,
+	.prepare = acpi_pm_prepare,
+	.enter = acpi_hibernation_enter,
+	.leave = acpi_hibernation_leave,
+	.pre_restore = acpi_pm_disable_gpes,
+	.restore_cleanup = acpi_pm_enable_gpes,
+};
 
-static int acpi_hibernation_pre_restore(void)
+/**
+ *	acpi_hibernation_begin_old - Set the target system sleep state to
+ *		ACPI_STATE_S4 and execute the _PTS control method.  This
+ *		function is used if the pre-ACPI 2.0 suspend ordering has been
+ *		requested.
+ */
+static int acpi_hibernation_begin_old(void)
 {
-	acpi_status status;
-
-	status = acpi_hw_disable_all_gpes();
-
-	return ACPI_SUCCESS(status) ? 0 : -EFAULT;
-}
+	int error = acpi_sleep_prepare(ACPI_STATE_S4);
 
-static void acpi_hibernation_restore_cleanup(void)
-{
-	acpi_hw_enable_all_runtime_gpes();
+	if (!error)
+		acpi_target_sleep_state = ACPI_STATE_S4;
+	return error;
 }
 
-static struct platform_hibernation_ops acpi_hibernation_ops = {
-	.begin = acpi_hibernation_begin,
-	.end = acpi_hibernation_end,
-	.pre_snapshot = acpi_hibernation_prepare,
-	.finish = acpi_hibernation_finish,
-	.prepare = acpi_hibernation_prepare,
+/*
+ * The following callbacks are used if the pre-ACPI 2.0 suspend ordering has
+ * been requested.
+ */
+static struct platform_hibernation_ops acpi_hibernation_ops_old = {
+	.begin = acpi_hibernation_begin_old,
+	.end = acpi_pm_end,
+	.pre_snapshot = acpi_pm_disable_gpes,
+	.finish = acpi_pm_finish,
+	.prepare = acpi_pm_disable_gpes,
 	.enter = acpi_hibernation_enter,
 	.leave = acpi_hibernation_leave,
-	.pre_restore = acpi_hibernation_pre_restore,
-	.restore_cleanup = acpi_hibernation_restore_cleanup,
+	.pre_restore = acpi_pm_disable_gpes,
+	.restore_cleanup = acpi_pm_enable_gpes,
+	.recover = acpi_pm_finish,
 };
-#endif				/* CONFIG_HIBERNATION */
+#endif /* CONFIG_HIBERNATION */
 
 int acpi_suspend(u32 acpi_state)
 {
@@ -368,8 +387,8 @@ int acpi_suspend(u32 acpi_state)
 /**
  *	acpi_pm_device_sleep_state - return preferred power state of ACPI device
  *		in the system sleep state given by %acpi_target_sleep_state
- *	@dev: device to examine
- *	@wake: if set, the device should be able to wake up the system
+ *	@dev: device to examine; its driver model wakeup flags control
+ *		whether it should be able to wake up the system
  *	@d_min_p: used to store the upper limit of allowed states range
  *	Return value: preferred power state of the device on success, -ENODEV on
  *		failure (ie. if there's no 'struct acpi_device' for @dev)
@@ -387,7 +406,7 @@ int acpi_suspend(u32 acpi_state)
  *	via @wake.
  */
 
-int acpi_pm_device_sleep_state(struct device *dev, int wake, int *d_min_p)
+int acpi_pm_device_sleep_state(struct device *dev, int *d_min_p)
 {
 	acpi_handle handle = DEVICE_ACPI_HANDLE(dev);
 	struct acpi_device *adev;
@@ -426,7 +445,7 @@ int acpi_pm_device_sleep_state(struct device *dev, int wake, int *d_min_p)
 	 * can wake the system.  _S0W may be valid, too.
 	 */
 	if (acpi_target_sleep_state == ACPI_STATE_S0 ||
-	    (wake && adev->wakeup.state.enabled &&
+	    (device_may_wakeup(dev) && adev->wakeup.state.enabled &&
 	     adev->wakeup.sleep_state <= acpi_target_sleep_state)) {
 		acpi_status status;
 
@@ -448,6 +467,31 @@ int acpi_pm_device_sleep_state(struct device *dev, int wake, int *d_min_p)
 		*d_min_p = d_min;
 	return d_max;
 }
+
+/**
+ *	acpi_pm_device_sleep_wake - enable or disable the system wake-up
+ *                                  capability of given device
+ *	@dev: device to handle
+ *	@enable: 'true' - enable, 'false' - disable the wake-up capability
+ */
+int acpi_pm_device_sleep_wake(struct device *dev, bool enable)
+{
+	acpi_handle handle;
+	struct acpi_device *adev;
+
+	if (!device_may_wakeup(dev))
+		return -EINVAL;
+
+	handle = DEVICE_ACPI_HANDLE(dev);
+	if (!handle || ACPI_FAILURE(acpi_bus_get_device(handle, &adev))) {
+		printk(KERN_DEBUG "ACPI handle has no context!\n");
+		return -ENODEV;
+	}
+
+	return enable ?
+		acpi_enable_wakeup_device_power(adev, acpi_target_sleep_state) :
+		acpi_disable_wakeup_device_power(adev);
+}
 #endif
 
 static void acpi_power_off_prepare(void)
@@ -472,8 +516,6 @@ int __init acpi_sleep_init(void)
 	u8 type_a, type_b;
 #ifdef CONFIG_SUSPEND
 	int i = 0;
-
-	dmi_check_system(acpisleep_dmi_table);
 #endif
 
 	if (acpi_disabled)
@@ -491,13 +533,15 @@ int __init acpi_sleep_init(void)
 		}
 	}
 
-	suspend_set_ops(&acpi_suspend_ops);
+	suspend_set_ops(old_suspend_ordering ?
+		&acpi_suspend_ops_old : &acpi_suspend_ops);
 #endif
 
 #ifdef CONFIG_HIBERNATION
 	status = acpi_get_sleep_type_data(ACPI_STATE_S4, &type_a, &type_b);
 	if (ACPI_SUCCESS(status)) {
-		hibernation_set_ops(&acpi_hibernation_ops);
+		hibernation_set_ops(old_suspend_ordering ?
+			&acpi_hibernation_ops_old : &acpi_hibernation_ops);
 		sleep_states[ACPI_STATE_S4] = 1;
 		printk(" S4");
 	}
diff --git a/drivers/acpi/sleep/wakeup.c b/drivers/acpi/sleep/wakeup.c
index ed8e41becf0c..38655eb132dc 100644
--- a/drivers/acpi/sleep/wakeup.c
+++ b/drivers/acpi/sleep/wakeup.c
@@ -42,7 +42,7 @@ void acpi_enable_wakeup_device_prep(u8 sleep_state)
 			continue;
 
 		spin_unlock(&acpi_device_lock);
-		acpi_enable_wakeup_device_power(dev);
+		acpi_enable_wakeup_device_power(dev, sleep_state);
 		spin_lock(&acpi_device_lock);
 	}
 	spin_unlock(&acpi_device_lock);
@@ -66,13 +66,15 @@ void acpi_enable_wakeup_device(u8 sleep_state)
 	list_for_each_safe(node, next, &acpi_wakeup_device_list) {
 		struct acpi_device *dev =
 			container_of(node, struct acpi_device, wakeup_list);
+
 		if (!dev->wakeup.flags.valid)
 			continue;
+
 		/* If users want to disable run-wake GPE,
 		 * we only disable it for wake and leave it for runtime
 		 */
-		if (!dev->wakeup.state.enabled ||
-		    sleep_state > (u32) dev->wakeup.sleep_state) {
+		if ((!dev->wakeup.state.enabled && !dev->wakeup.flags.prepared)
+		    || sleep_state > (u32) dev->wakeup.sleep_state) {
 			if (dev->wakeup.flags.run_wake) {
 				spin_unlock(&acpi_device_lock);
 				/* set_gpe_type will disable GPE, leave it like that */
@@ -110,8 +112,9 @@ void acpi_disable_wakeup_device(u8 sleep_state)
 
 		if (!dev->wakeup.flags.valid)
 			continue;
-		if (!dev->wakeup.state.enabled ||
-		    sleep_state > (u32) dev->wakeup.sleep_state) {
+
+		if ((!dev->wakeup.state.enabled && !dev->wakeup.flags.prepared)
+		    || sleep_state > (u32) dev->wakeup.sleep_state) {
 			if (dev->wakeup.flags.run_wake) {
 				spin_unlock(&acpi_device_lock);
 				acpi_set_gpe_type(dev->wakeup.gpe_device,
diff --git a/drivers/acpi/system.c b/drivers/acpi/system.c
index 5bd2dec9a7ac..d8e3f153b295 100644
--- a/drivers/acpi/system.c
+++ b/drivers/acpi/system.c
@@ -167,7 +167,13 @@ static int acpi_system_sysfs_init(void)
 #define COUNT_ERROR 2	/* other */
 #define NUM_COUNTERS_EXTRA 3
 
-static u32 *all_counters;
+#define ACPI_EVENT_VALID	0x01
+struct event_counter {
+	u32 count;
+	u32 flags;
+};
+
+static struct event_counter *all_counters;
 static u32 num_gpes;
 static u32 num_counters;
 static struct attribute **all_attrs;
@@ -202,9 +208,44 @@ static int count_num_gpes(void)
 	return count;
 }
 
+static int get_gpe_device(int index, acpi_handle *handle)
+{
+	struct acpi_gpe_xrupt_info *gpe_xrupt_info;
+	struct acpi_gpe_block_info *gpe_block;
+	acpi_cpu_flags flags;
+	struct acpi_namespace_node *node;
+
+	flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
+
+	gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head;
+	while (gpe_xrupt_info) {
+		gpe_block = gpe_xrupt_info->gpe_block_list_head;
+		node = gpe_block->node;
+		while (gpe_block) {
+			index -= gpe_block->register_count *
+			    ACPI_GPE_REGISTER_WIDTH;
+			if (index < 0) {
+				acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
+				/* return NULL if it's FADT GPE */
+				if (node->type != ACPI_TYPE_DEVICE)
+					*handle = NULL;
+				else
+					*handle = node;
+				return 0;
+			}
+			node = gpe_block->node;
+			gpe_block = gpe_block->next;
+		}
+		gpe_xrupt_info = gpe_xrupt_info->next;
+	}
+	acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
+
+	return -ENODEV;
+}
+
 static void delete_gpe_attr_array(void)
 {
-	u32 *tmp = all_counters;
+	struct event_counter *tmp = all_counters;
 
 	all_counters = NULL;
 	kfree(tmp);
@@ -230,9 +271,10 @@ void acpi_os_gpe_count(u32 gpe_number)
 		return;
 
 	if (gpe_number < num_gpes)
-		all_counters[gpe_number]++;
+		all_counters[gpe_number].count++;
 	else
-		all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_ERROR]++;
+		all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_ERROR].
+					count++;
 
 	return;
 }
@@ -243,44 +285,144 @@ void acpi_os_fixed_event_count(u32 event_number)
 		return;
 
 	if (event_number < ACPI_NUM_FIXED_EVENTS)
-		all_counters[num_gpes + event_number]++;
+		all_counters[num_gpes + event_number].count++;
 	else
-		all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_ERROR]++;
+		all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_ERROR].
+				count++;
 
 	return;
 }
 
+static int get_status(u32 index, acpi_event_status *status, acpi_handle *handle)
+{
+	int result = 0;
+
+	if (index >= num_gpes + ACPI_NUM_FIXED_EVENTS)
+		goto end;
+
+	if (index < num_gpes) {
+		result = get_gpe_device(index, handle);
+		if (result) {
+			ACPI_EXCEPTION((AE_INFO, AE_NOT_FOUND,
+				"Invalid GPE 0x%x\n", index));
+			goto end;
+		}
+		result = acpi_get_gpe_status(*handle, index,
+						ACPI_NOT_ISR, status);
+	} else if (index < (num_gpes + ACPI_NUM_FIXED_EVENTS))
+		result = acpi_get_event_status(index - num_gpes, status);
+
+	/*
+	 * sleep/power button GPE/Fixed Event is enabled after acpi_system_init,
+	 * check the status at runtime and mark it as valid once it's enabled
+	 */
+	if (!result && (*status & ACPI_EVENT_FLAG_ENABLED))
+		all_counters[index].flags |= ACPI_EVENT_VALID;
+end:
+	return result;
+}
+
 static ssize_t counter_show(struct kobject *kobj,
 	struct kobj_attribute *attr, char *buf)
 {
-	all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI] =
+	int index = attr - counter_attrs;
+	int size;
+	acpi_handle handle;
+	acpi_event_status status;
+	int result = 0;
+
+	all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI].count =
 		acpi_irq_handled;
-	all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_GPE] =
+	all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_GPE].count =
 		acpi_gpe_count;
 
-	return sprintf(buf, "%d\n", all_counters[attr - counter_attrs]);
+	size = sprintf(buf, "%8d", all_counters[index].count);
+
+	/* "gpe_all" or "sci" */
+	if (index >= num_gpes + ACPI_NUM_FIXED_EVENTS)
+		goto end;
+
+	result = get_status(index, &status, &handle);
+	if (result)
+		goto end;
+
+	if (!(all_counters[index].flags & ACPI_EVENT_VALID))
+		size += sprintf(buf + size, "  invalid");
+	else if (status & ACPI_EVENT_FLAG_ENABLED)
+		size += sprintf(buf + size, "	enable");
+	else
+		size += sprintf(buf + size, "  disable");
+
+end:
+	size += sprintf(buf + size, "\n");
+	return result ? result : size;
 }
 
 /*
  * counter_set() sets the specified counter.
  * setting the total "sci" file to any value clears all counters.
+ * enable/disable/clear a gpe/fixed event in user space.
  */
 static ssize_t counter_set(struct kobject *kobj,
 	struct kobj_attribute *attr, const char *buf, size_t size)
 {
 	int index = attr - counter_attrs;
+	acpi_event_status status;
+	acpi_handle handle;
+	int result = 0;
 
 	if (index == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI) {
 		int i;
 		for (i = 0; i < num_counters; ++i)
-			all_counters[i] = 0;
+			all_counters[i].count = 0;
 		acpi_gpe_count = 0;
 		acpi_irq_handled = 0;
+		goto end;
+	}
 
+	/* show the event status for both GPEs and Fixed Events */
+	result = get_status(index, &status, &handle);
+	if (result)
+		goto end;
+
+	if (!(all_counters[index].flags & ACPI_EVENT_VALID)) {
+		ACPI_DEBUG_PRINT((ACPI_DB_WARN,
+			"Can not change Invalid GPE/Fixed Event status\n"));
+		return -EINVAL;
+	}
+
+	if (index < num_gpes) {
+		if (!strcmp(buf, "disable\n") &&
+				(status & ACPI_EVENT_FLAG_ENABLED))
+			result = acpi_disable_gpe(handle, index, ACPI_NOT_ISR);
+		else if (!strcmp(buf, "enable\n") &&
+				!(status & ACPI_EVENT_FLAG_ENABLED))
+			result = acpi_enable_gpe(handle, index, ACPI_NOT_ISR);
+		else if (!strcmp(buf, "clear\n") &&
+				(status & ACPI_EVENT_FLAG_SET))
+			result = acpi_clear_gpe(handle, index, ACPI_NOT_ISR);
+		else
+			all_counters[index].count = strtoul(buf, NULL, 0);
+	} else if (index < num_gpes + ACPI_NUM_FIXED_EVENTS) {
+		int event = index - num_gpes;
+		if (!strcmp(buf, "disable\n") &&
+				(status & ACPI_EVENT_FLAG_ENABLED))
+			result = acpi_disable_event(event, ACPI_NOT_ISR);
+		else if (!strcmp(buf, "enable\n") &&
+				!(status & ACPI_EVENT_FLAG_ENABLED))
+			result = acpi_enable_event(event, ACPI_NOT_ISR);
+		else if (!strcmp(buf, "clear\n") &&
+				(status & ACPI_EVENT_FLAG_SET))
+			result = acpi_clear_event(event);
+		else
+			all_counters[index].count = strtoul(buf, NULL, 0);
 	} else
-		all_counters[index] = strtoul(buf, NULL, 0);
+		all_counters[index].count = strtoul(buf, NULL, 0);
 
-	return size;
+	if (ACPI_FAILURE(result))
+		result = -EINVAL;
+end:
+	return result ? result : size;
 }
 
 void acpi_irq_stats_init(void)
@@ -298,7 +440,8 @@ void acpi_irq_stats_init(void)
 	if (all_attrs == NULL)
 		return;
 
-	all_counters = kzalloc(sizeof(u32) * (num_counters), GFP_KERNEL);
+	all_counters = kzalloc(sizeof(struct event_counter) * (num_counters),
+				GFP_KERNEL);
 	if (all_counters == NULL)
 		goto fail;
 
diff --git a/drivers/acpi/tables/tbfadt.c b/drivers/acpi/tables/tbfadt.c
index 949d4114eb9f..ccb5b64bbef3 100644
--- a/drivers/acpi/tables/tbfadt.c
+++ b/drivers/acpi/tables/tbfadt.c
@@ -124,7 +124,7 @@ static struct acpi_fadt_info fadt_info_table[] = {
 
 static void inline
 acpi_tb_init_generic_address(struct acpi_generic_address *generic_address,
-			     u8 bit_width, u64 address)
+			     u8 byte_width, u64 address)
 {
 
 	/*
@@ -136,7 +136,7 @@ acpi_tb_init_generic_address(struct acpi_generic_address *generic_address,
 	/* All other fields are byte-wide */
 
 	generic_address->space_id = ACPI_ADR_SPACE_SYSTEM_IO;
-	generic_address->bit_width = bit_width;
+	generic_address->bit_width = byte_width << 3;
 	generic_address->bit_offset = 0;
 	generic_address->access_width = 0;
 }
@@ -155,7 +155,7 @@ acpi_tb_init_generic_address(struct acpi_generic_address *generic_address,
  *
  ******************************************************************************/
 
-void acpi_tb_parse_fadt(acpi_native_uint table_index, u8 flags)
+void acpi_tb_parse_fadt(u32 table_index, u8 flags)
 {
 	u32 length;
 	struct acpi_table_header *table;
@@ -280,7 +280,7 @@ static void acpi_tb_convert_fadt(void)
 {
 	u8 pm1_register_length;
 	struct acpi_generic_address *target;
-	acpi_native_uint i;
+	u32 i;
 
 	/* Update the local FADT table header length */
 
@@ -343,9 +343,11 @@ static void acpi_tb_convert_fadt(void)
 	 *
 	 * The PM event blocks are split into two register blocks, first is the
 	 * PM Status Register block, followed immediately by the PM Enable Register
-	 * block. Each is of length (pm1_event_length/2)
+	 * block. Each is of length (xpm1x_event_block.bit_width/2)
 	 */
-	pm1_register_length = (u8) ACPI_DIV_2(acpi_gbl_FADT.pm1_event_length);
+	WARN_ON(ACPI_MOD_16(acpi_gbl_FADT.xpm1a_event_block.bit_width));
+	pm1_register_length = (u8) ACPI_DIV_16(acpi_gbl_FADT
+					       .xpm1a_event_block.bit_width);
 
 	/* The PM1A register block is required */
 
@@ -360,14 +362,17 @@ static void acpi_tb_convert_fadt(void)
 	/* The PM1B register block is optional, ignore if not present */
 
 	if (acpi_gbl_FADT.xpm1b_event_block.address) {
+		WARN_ON(ACPI_MOD_16(acpi_gbl_FADT.xpm1b_event_block.bit_width));
+		pm1_register_length = (u8) ACPI_DIV_16(acpi_gbl_FADT
+						       .xpm1b_event_block
+						       .bit_width);
 		acpi_tb_init_generic_address(&acpi_gbl_xpm1b_enable,
 					     pm1_register_length,
 					     (acpi_gbl_FADT.xpm1b_event_block.
 					      address + pm1_register_length));
 		/* Don't forget to copy space_id of the GAS */
 		acpi_gbl_xpm1b_enable.space_id =
-		    acpi_gbl_FADT.xpm1a_event_block.space_id;
-
+		    acpi_gbl_FADT.xpm1b_event_block.space_id;
 	}
 }
 
@@ -396,7 +401,7 @@ static void acpi_tb_validate_fadt(void)
 	u32 *address32;
 	struct acpi_generic_address *address64;
 	u8 length;
-	acpi_native_uint i;
+	u32 i;
 
 	/* Examine all of the 64-bit extended address fields (X fields) */
 
diff --git a/drivers/acpi/tables/tbfind.c b/drivers/acpi/tables/tbfind.c
index 9ca3afc98c80..531584defbb8 100644
--- a/drivers/acpi/tables/tbfind.c
+++ b/drivers/acpi/tables/tbfind.c
@@ -65,10 +65,9 @@ ACPI_MODULE_NAME("tbfind")
  ******************************************************************************/
 acpi_status
 acpi_tb_find_table(char *signature,
-		   char *oem_id,
-		   char *oem_table_id, acpi_native_uint * table_index)
+		   char *oem_id, char *oem_table_id, u32 *table_index)
 {
-	acpi_native_uint i;
+	u32 i;
 	acpi_status status;
 	struct acpi_table_header header;
 
diff --git a/drivers/acpi/tables/tbinstal.c b/drivers/acpi/tables/tbinstal.c
index 5336ce88f89f..b22185f55a16 100644
--- a/drivers/acpi/tables/tbinstal.c
+++ b/drivers/acpi/tables/tbinstal.c
@@ -107,11 +107,10 @@ acpi_status acpi_tb_verify_table(struct acpi_table_desc *table_desc)
  ******************************************************************************/
 
 acpi_status
-acpi_tb_add_table(struct acpi_table_desc *table_desc,
-		  acpi_native_uint * table_index)
+acpi_tb_add_table(struct acpi_table_desc *table_desc, u32 *table_index)
 {
-	acpi_native_uint i;
-	acpi_native_uint length;
+	u32 i;
+	u32 length;
 	acpi_status status = AE_OK;
 
 	ACPI_FUNCTION_TRACE(tb_add_table);
@@ -207,8 +206,8 @@ acpi_status acpi_tb_resize_root_table_list(void)
 
 	/* Increase the Table Array size */
 
-	tables = ACPI_ALLOCATE_ZEROED((acpi_gbl_root_table_list.size +
-				       ACPI_ROOT_TABLE_SIZE_INCREMENT)
+	tables = ACPI_ALLOCATE_ZEROED(((acpi_size) acpi_gbl_root_table_list.
+				       size + ACPI_ROOT_TABLE_SIZE_INCREMENT)
 				      * sizeof(struct acpi_table_desc));
 	if (!tables) {
 		ACPI_ERROR((AE_INFO,
@@ -220,7 +219,7 @@ acpi_status acpi_tb_resize_root_table_list(void)
 
 	if (acpi_gbl_root_table_list.tables) {
 		ACPI_MEMCPY(tables, acpi_gbl_root_table_list.tables,
-			    acpi_gbl_root_table_list.size *
+			    (acpi_size) acpi_gbl_root_table_list.size *
 			    sizeof(struct acpi_table_desc));
 
 		if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) {
@@ -253,7 +252,7 @@ acpi_status acpi_tb_resize_root_table_list(void)
 acpi_status
 acpi_tb_store_table(acpi_physical_address address,
 		    struct acpi_table_header *table,
-		    u32 length, u8 flags, acpi_native_uint * table_index)
+		    u32 length, u8 flags, u32 *table_index)
 {
 	acpi_status status = AE_OK;
 
@@ -334,7 +333,7 @@ void acpi_tb_delete_table(struct acpi_table_desc *table_desc)
 
 void acpi_tb_terminate(void)
 {
-	acpi_native_uint i;
+	u32 i;
 
 	ACPI_FUNCTION_TRACE(tb_terminate);
 
@@ -374,7 +373,7 @@ void acpi_tb_terminate(void)
  *
  ******************************************************************************/
 
-void acpi_tb_delete_namespace_by_owner(acpi_native_uint table_index)
+void acpi_tb_delete_namespace_by_owner(u32 table_index)
 {
 	acpi_owner_id owner_id;
 
@@ -403,7 +402,7 @@ void acpi_tb_delete_namespace_by_owner(acpi_native_uint table_index)
  *
  ******************************************************************************/
 
-acpi_status acpi_tb_allocate_owner_id(acpi_native_uint table_index)
+acpi_status acpi_tb_allocate_owner_id(u32 table_index)
 {
 	acpi_status status = AE_BAD_PARAMETER;
 
@@ -431,7 +430,7 @@ acpi_status acpi_tb_allocate_owner_id(acpi_native_uint table_index)
  *
  ******************************************************************************/
 
-acpi_status acpi_tb_release_owner_id(acpi_native_uint table_index)
+acpi_status acpi_tb_release_owner_id(u32 table_index)
 {
 	acpi_status status = AE_BAD_PARAMETER;
 
@@ -462,8 +461,7 @@ acpi_status acpi_tb_release_owner_id(acpi_native_uint table_index)
  *
  ******************************************************************************/
 
-acpi_status
-acpi_tb_get_owner_id(acpi_native_uint table_index, acpi_owner_id * owner_id)
+acpi_status acpi_tb_get_owner_id(u32 table_index, acpi_owner_id *owner_id)
 {
 	acpi_status status = AE_BAD_PARAMETER;
 
@@ -490,7 +488,7 @@ acpi_tb_get_owner_id(acpi_native_uint table_index, acpi_owner_id * owner_id)
  *
  ******************************************************************************/
 
-u8 acpi_tb_is_table_loaded(acpi_native_uint table_index)
+u8 acpi_tb_is_table_loaded(u32 table_index)
 {
 	u8 is_loaded = FALSE;
 
@@ -518,7 +516,7 @@ u8 acpi_tb_is_table_loaded(acpi_native_uint table_index)
  *
  ******************************************************************************/
 
-void acpi_tb_set_table_loaded_flag(acpi_native_uint table_index, u8 is_loaded)
+void acpi_tb_set_table_loaded_flag(u32 table_index, u8 is_loaded)
 {
 
 	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
diff --git a/drivers/acpi/tables/tbutils.c b/drivers/acpi/tables/tbutils.c
index bc019b9b6a68..0cc92ef5236f 100644
--- a/drivers/acpi/tables/tbutils.c
+++ b/drivers/acpi/tables/tbutils.c
@@ -49,8 +49,8 @@ ACPI_MODULE_NAME("tbutils")
 
 /* Local prototypes */
 static acpi_physical_address
-acpi_tb_get_root_table_entry(u8 * table_entry,
-			     acpi_native_uint table_entry_size);
+acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size);
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_tb_check_xsdt
@@ -238,7 +238,7 @@ acpi_status acpi_tb_verify_checksum(struct acpi_table_header *table, u32 length)
  *
  ******************************************************************************/
 
-u8 acpi_tb_checksum(u8 * buffer, acpi_native_uint length)
+u8 acpi_tb_checksum(u8 *buffer, u32 length)
 {
 	u8 sum = 0;
 	u8 *end = buffer + length;
@@ -268,7 +268,7 @@ u8 acpi_tb_checksum(u8 * buffer, acpi_native_uint length)
 
 void
 acpi_tb_install_table(acpi_physical_address address,
-		      u8 flags, char *signature, acpi_native_uint table_index)
+		      u8 flags, char *signature, u32 table_index)
 {
 	struct acpi_table_header *table;
 
@@ -336,8 +336,7 @@ acpi_tb_install_table(acpi_physical_address address,
  ******************************************************************************/
 
 static acpi_physical_address
-acpi_tb_get_root_table_entry(u8 * table_entry,
-			     acpi_native_uint table_entry_size)
+acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size)
 {
 	u64 address64;
 
@@ -395,8 +394,8 @@ acpi_status __init
 acpi_tb_parse_root_table(acpi_physical_address rsdp_address, u8 flags)
 {
 	struct acpi_table_rsdp *rsdp;
-	acpi_native_uint table_entry_size;
-	acpi_native_uint i;
+	u32 table_entry_size;
+	u32 i;
 	u32 table_count;
 	struct acpi_table_header *table;
 	acpi_physical_address address;
diff --git a/drivers/acpi/tables/tbxface.c b/drivers/acpi/tables/tbxface.c
index 0e319604d3e7..fd7770aa1061 100644
--- a/drivers/acpi/tables/tbxface.c
+++ b/drivers/acpi/tables/tbxface.c
@@ -125,7 +125,7 @@ acpi_initialize_tables(struct acpi_table_desc * initial_table_array,
 		/* Root Table Array has been statically allocated by the host */
 
 		ACPI_MEMSET(initial_table_array, 0,
-			    initial_table_count *
+			    (acpi_size) initial_table_count *
 			    sizeof(struct acpi_table_desc));
 
 		acpi_gbl_root_table_list.tables = initial_table_array;
@@ -183,9 +183,9 @@ acpi_status acpi_reallocate_root_table(void)
 		return_ACPI_STATUS(AE_SUPPORT);
 	}
 
-	new_size =
-	    (acpi_gbl_root_table_list.count +
-	     ACPI_ROOT_TABLE_SIZE_INCREMENT) * sizeof(struct acpi_table_desc);
+	new_size = ((acpi_size) acpi_gbl_root_table_list.count +
+		    ACPI_ROOT_TABLE_SIZE_INCREMENT) *
+	    sizeof(struct acpi_table_desc);
 
 	/* Create new array and copy the old array */
 
@@ -222,7 +222,7 @@ acpi_status acpi_reallocate_root_table(void)
 acpi_status acpi_load_table(struct acpi_table_header *table_ptr)
 {
 	acpi_status status;
-	acpi_native_uint table_index;
+	u32 table_index;
 	struct acpi_table_desc table_desc;
 
 	if (!table_ptr)
@@ -264,11 +264,10 @@ ACPI_EXPORT_SYMBOL(acpi_load_table)
  *****************************************************************************/
 acpi_status
 acpi_get_table_header(char *signature,
-		      acpi_native_uint instance,
-		      struct acpi_table_header * out_table_header)
+		      u32 instance, struct acpi_table_header *out_table_header)
 {
-	acpi_native_uint i;
-	acpi_native_uint j;
+       u32 i;
+       u32 j;
 	struct acpi_table_header *header;
 
 	/* Parameter validation */
@@ -378,10 +377,10 @@ ACPI_EXPORT_SYMBOL(acpi_unload_table_id)
  *****************************************************************************/
 acpi_status
 acpi_get_table(char *signature,
-	       acpi_native_uint instance, struct acpi_table_header **out_table)
+	       u32 instance, struct acpi_table_header **out_table)
 {
-	acpi_native_uint i;
-	acpi_native_uint j;
+       u32 i;
+       u32 j;
 	acpi_status status;
 
 	/* Parameter validation */
@@ -435,8 +434,7 @@ ACPI_EXPORT_SYMBOL(acpi_get_table)
  *
  ******************************************************************************/
 acpi_status
-acpi_get_table_by_index(acpi_native_uint table_index,
-			struct acpi_table_header ** table)
+acpi_get_table_by_index(u32 table_index, struct acpi_table_header **table)
 {
 	acpi_status status;
 
@@ -493,7 +491,7 @@ static acpi_status acpi_tb_load_namespace(void)
 {
 	acpi_status status;
 	struct acpi_table_header *table;
-	acpi_native_uint i;
+	u32 i;
 
 	ACPI_FUNCTION_TRACE(tb_load_namespace);
 
diff --git a/drivers/acpi/tables/tbxfroot.c b/drivers/acpi/tables/tbxfroot.c
index b8c0dfa084f6..2d157e0f98d2 100644
--- a/drivers/acpi/tables/tbxfroot.c
+++ b/drivers/acpi/tables/tbxfroot.c
@@ -118,7 +118,7 @@ static acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp)
  *
  ******************************************************************************/
 
-acpi_status acpi_find_root_pointer(acpi_native_uint * table_address)
+acpi_status acpi_find_root_pointer(acpi_size *table_address)
 {
 	u8 *table_ptr;
 	u8 *mem_rover;
@@ -153,7 +153,7 @@ acpi_status acpi_find_root_pointer(acpi_native_uint * table_address)
 		 * 1b) Search EBDA paragraphs (EBDA is required to be a
 		 *     minimum of 1_k length)
 		 */
-		table_ptr = acpi_os_map_memory((acpi_native_uint)
+		table_ptr = acpi_os_map_memory((acpi_physical_address)
 					       physical_address,
 					       ACPI_EBDA_WINDOW_SIZE);
 		if (!table_ptr) {
diff --git a/drivers/acpi/utilities/utalloc.c b/drivers/acpi/utilities/utalloc.c
index ede084829a70..3dfb8a442b26 100644
--- a/drivers/acpi/utilities/utalloc.c
+++ b/drivers/acpi/utilities/utalloc.c
@@ -309,7 +309,8 @@ acpi_ut_initialize_buffer(struct acpi_buffer * buffer,
  *
  ******************************************************************************/
 
-void *acpi_ut_allocate(acpi_size size, u32 component, char *module, u32 line)
+void *acpi_ut_allocate(acpi_size size,
+		       u32 component, const char *module, u32 line)
 {
 	void *allocation;
 
@@ -353,7 +354,7 @@ void *acpi_ut_allocate(acpi_size size, u32 component, char *module, u32 line)
  ******************************************************************************/
 
 void *acpi_ut_allocate_zeroed(acpi_size size,
-			      u32 component, char *module, u32 line)
+			      u32 component, const char *module, u32 line)
 {
 	void *allocation;
 
diff --git a/drivers/acpi/utilities/utcopy.c b/drivers/acpi/utilities/utcopy.c
index 655c290aca7b..53499ac90988 100644
--- a/drivers/acpi/utilities/utcopy.c
+++ b/drivers/acpi/utilities/utcopy.c
@@ -572,7 +572,7 @@ acpi_ut_copy_epackage_to_ipackage(union acpi_object *external_object,
 	acpi_status status = AE_OK;
 	union acpi_operand_object *package_object;
 	union acpi_operand_object **package_elements;
-	acpi_native_uint i;
+	u32 i;
 
 	ACPI_FUNCTION_TRACE(ut_copy_epackage_to_ipackage);
 
@@ -599,7 +599,7 @@ acpi_ut_copy_epackage_to_ipackage(union acpi_object *external_object,
 
 			/* Truncate package and delete it */
 
-			package_object->package.count = (u32) i;
+			package_object->package.count = i;
 			package_elements[i] = NULL;
 			acpi_ut_remove_reference(package_object);
 			return_ACPI_STATUS(status);
diff --git a/drivers/acpi/utilities/utdebug.c b/drivers/acpi/utilities/utdebug.c
index f938f465efa4..fd66ecb6741e 100644
--- a/drivers/acpi/utilities/utdebug.c
+++ b/drivers/acpi/utilities/utdebug.c
@@ -157,7 +157,8 @@ void ACPI_INTERNAL_VAR_XFACE
 acpi_ut_debug_print(u32 requested_debug_level,
 		    u32 line_number,
 		    const char *function_name,
-		    char *module_name, u32 component_id, char *format, ...)
+		    const char *module_name,
+		    u32 component_id, const char *format, ...)
 {
 	acpi_thread_id thread_id;
 	va_list args;
@@ -228,7 +229,8 @@ void ACPI_INTERNAL_VAR_XFACE
 acpi_ut_debug_print_raw(u32 requested_debug_level,
 			u32 line_number,
 			const char *function_name,
-			char *module_name, u32 component_id, char *format, ...)
+			const char *module_name,
+			u32 component_id, const char *format, ...)
 {
 	va_list args;
 
@@ -261,7 +263,8 @@ ACPI_EXPORT_SYMBOL(acpi_ut_debug_print_raw)
  ******************************************************************************/
 void
 acpi_ut_trace(u32 line_number,
-	      const char *function_name, char *module_name, u32 component_id)
+	      const char *function_name,
+	      const char *module_name, u32 component_id)
 {
 
 	acpi_gbl_nesting_level++;
@@ -293,7 +296,7 @@ ACPI_EXPORT_SYMBOL(acpi_ut_trace)
 void
 acpi_ut_trace_ptr(u32 line_number,
 		  const char *function_name,
-		  char *module_name, u32 component_id, void *pointer)
+		  const char *module_name, u32 component_id, void *pointer)
 {
 	acpi_gbl_nesting_level++;
 	acpi_ut_track_stack_ptr();
@@ -324,7 +327,7 @@ acpi_ut_trace_ptr(u32 line_number,
 void
 acpi_ut_trace_str(u32 line_number,
 		  const char *function_name,
-		  char *module_name, u32 component_id, char *string)
+		  const char *module_name, u32 component_id, char *string)
 {
 
 	acpi_gbl_nesting_level++;
@@ -356,7 +359,7 @@ acpi_ut_trace_str(u32 line_number,
 void
 acpi_ut_trace_u32(u32 line_number,
 		  const char *function_name,
-		  char *module_name, u32 component_id, u32 integer)
+		  const char *module_name, u32 component_id, u32 integer)
 {
 
 	acpi_gbl_nesting_level++;
@@ -386,7 +389,8 @@ acpi_ut_trace_u32(u32 line_number,
 
 void
 acpi_ut_exit(u32 line_number,
-	     const char *function_name, char *module_name, u32 component_id)
+	     const char *function_name,
+	     const char *module_name, u32 component_id)
 {
 
 	acpi_ut_debug_print(ACPI_LV_FUNCTIONS,
@@ -417,7 +421,8 @@ ACPI_EXPORT_SYMBOL(acpi_ut_exit)
 void
 acpi_ut_status_exit(u32 line_number,
 		    const char *function_name,
-		    char *module_name, u32 component_id, acpi_status status)
+		    const char *module_name,
+		    u32 component_id, acpi_status status)
 {
 
 	if (ACPI_SUCCESS(status)) {
@@ -458,7 +463,8 @@ ACPI_EXPORT_SYMBOL(acpi_ut_status_exit)
 void
 acpi_ut_value_exit(u32 line_number,
 		   const char *function_name,
-		   char *module_name, u32 component_id, acpi_integer value)
+		   const char *module_name,
+		   u32 component_id, acpi_integer value)
 {
 
 	acpi_ut_debug_print(ACPI_LV_FUNCTIONS,
@@ -490,7 +496,7 @@ ACPI_EXPORT_SYMBOL(acpi_ut_value_exit)
 void
 acpi_ut_ptr_exit(u32 line_number,
 		 const char *function_name,
-		 char *module_name, u32 component_id, u8 * ptr)
+		 const char *module_name, u32 component_id, u8 *ptr)
 {
 
 	acpi_ut_debug_print(ACPI_LV_FUNCTIONS,
@@ -519,8 +525,8 @@ acpi_ut_ptr_exit(u32 line_number,
 
 void acpi_ut_dump_buffer2(u8 * buffer, u32 count, u32 display)
 {
-	acpi_native_uint i = 0;
-	acpi_native_uint j;
+	u32 i = 0;
+	u32 j;
 	u32 temp32;
 	u8 buf_char;
 
@@ -539,7 +545,7 @@ void acpi_ut_dump_buffer2(u8 * buffer, u32 count, u32 display)
 
 		/* Print current offset */
 
-		acpi_os_printf("%6.4X: ", (u32) i);
+		acpi_os_printf("%6.4X: ", i);
 
 		/* Print 16 hex chars */
 
@@ -549,7 +555,7 @@ void acpi_ut_dump_buffer2(u8 * buffer, u32 count, u32 display)
 				/* Dump fill spaces */
 
 				acpi_os_printf("%*s", ((display * 2) + 1), " ");
-				j += (acpi_native_uint) display;
+				j += display;
 				continue;
 			}
 
@@ -557,32 +563,38 @@ void acpi_ut_dump_buffer2(u8 * buffer, u32 count, u32 display)
 			case DB_BYTE_DISPLAY:
 			default:	/* Default is BYTE display */
 
-				acpi_os_printf("%02X ", buffer[i + j]);
+				acpi_os_printf("%02X ",
+					       buffer[(acpi_size) i + j]);
 				break;
 
 			case DB_WORD_DISPLAY:
 
-				ACPI_MOVE_16_TO_32(&temp32, &buffer[i + j]);
+				ACPI_MOVE_16_TO_32(&temp32,
+						   &buffer[(acpi_size) i + j]);
 				acpi_os_printf("%04X ", temp32);
 				break;
 
 			case DB_DWORD_DISPLAY:
 
-				ACPI_MOVE_32_TO_32(&temp32, &buffer[i + j]);
+				ACPI_MOVE_32_TO_32(&temp32,
+						   &buffer[(acpi_size) i + j]);
 				acpi_os_printf("%08X ", temp32);
 				break;
 
 			case DB_QWORD_DISPLAY:
 
-				ACPI_MOVE_32_TO_32(&temp32, &buffer[i + j]);
+				ACPI_MOVE_32_TO_32(&temp32,
+						   &buffer[(acpi_size) i + j]);
 				acpi_os_printf("%08X", temp32);
 
-				ACPI_MOVE_32_TO_32(&temp32, &buffer[i + j + 4]);
+				ACPI_MOVE_32_TO_32(&temp32,
+						   &buffer[(acpi_size) i + j +
+							   4]);
 				acpi_os_printf("%08X ", temp32);
 				break;
 			}
 
-			j += (acpi_native_uint) display;
+			j += display;
 		}
 
 		/*
@@ -596,7 +608,7 @@ void acpi_ut_dump_buffer2(u8 * buffer, u32 count, u32 display)
 				return;
 			}
 
-			buf_char = buffer[i + j];
+			buf_char = buffer[(acpi_size) i + j];
 			if (ACPI_IS_PRINT(buf_char)) {
 				acpi_os_printf("%c", buf_char);
 			} else {
diff --git a/drivers/acpi/utilities/utdelete.c b/drivers/acpi/utilities/utdelete.c
index 1fbc35139e84..c5c791a575c9 100644
--- a/drivers/acpi/utilities/utdelete.c
+++ b/drivers/acpi/utilities/utdelete.c
@@ -442,7 +442,7 @@ acpi_ut_update_object_reference(union acpi_operand_object *object, u16 action)
 	union acpi_generic_state *state_list = NULL;
 	union acpi_operand_object *next_object = NULL;
 	union acpi_generic_state *state;
-	acpi_native_uint i;
+	u32 i;
 
 	ACPI_FUNCTION_TRACE_PTR(ut_update_object_reference, object);
 
diff --git a/drivers/acpi/utilities/uteval.c b/drivers/acpi/utilities/uteval.c
index 05e61be267d5..352747e49c7a 100644
--- a/drivers/acpi/utilities/uteval.c
+++ b/drivers/acpi/utilities/uteval.c
@@ -97,7 +97,7 @@ acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state)
 	acpi_status status;
 	union acpi_operand_object *string_desc;
 	union acpi_operand_object *return_desc;
-	acpi_native_uint i;
+	u32 i;
 
 	ACPI_FUNCTION_TRACE(ut_osi_implementation);
 
@@ -217,7 +217,6 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node,
 
 	info->prefix_node = prefix_node;
 	info->pathname = path;
-	info->parameter_type = ACPI_PARAM_ARGS;
 
 	/* Evaluate the object/method */
 
@@ -514,7 +513,7 @@ acpi_ut_execute_CID(struct acpi_namespace_node * device_node,
 	u32 count;
 	u32 size;
 	struct acpi_compatible_id_list *cid_list;
-	acpi_native_uint i;
+	u32 i;
 
 	ACPI_FUNCTION_TRACE(ut_execute_CID);
 
diff --git a/drivers/acpi/utilities/utmisc.c b/drivers/acpi/utilities/utmisc.c
index 1f057b71db1a..f34be6773556 100644
--- a/drivers/acpi/utilities/utmisc.c
+++ b/drivers/acpi/utilities/utmisc.c
@@ -64,7 +64,7 @@ ACPI_MODULE_NAME("utmisc")
  ******************************************************************************/
 const char *acpi_ut_validate_exception(acpi_status status)
 {
-	acpi_status sub_status;
+	u32 sub_status;
 	const char *exception = NULL;
 
 	ACPI_FUNCTION_ENTRY();
@@ -85,32 +85,28 @@ const char *acpi_ut_validate_exception(acpi_status status)
 	case AE_CODE_PROGRAMMER:
 
 		if (sub_status <= AE_CODE_PGM_MAX) {
-			exception =
-			    acpi_gbl_exception_names_pgm[sub_status - 1];
+			exception = acpi_gbl_exception_names_pgm[sub_status];
 		}
 		break;
 
 	case AE_CODE_ACPI_TABLES:
 
 		if (sub_status <= AE_CODE_TBL_MAX) {
-			exception =
-			    acpi_gbl_exception_names_tbl[sub_status - 1];
+			exception = acpi_gbl_exception_names_tbl[sub_status];
 		}
 		break;
 
 	case AE_CODE_AML:
 
 		if (sub_status <= AE_CODE_AML_MAX) {
-			exception =
-			    acpi_gbl_exception_names_aml[sub_status - 1];
+			exception = acpi_gbl_exception_names_aml[sub_status];
 		}
 		break;
 
 	case AE_CODE_CONTROL:
 
 		if (sub_status <= AE_CODE_CTRL_MAX) {
-			exception =
-			    acpi_gbl_exception_names_ctrl[sub_status - 1];
+			exception = acpi_gbl_exception_names_ctrl[sub_status];
 		}
 		break;
 
@@ -165,9 +161,9 @@ u8 acpi_ut_is_aml_table(struct acpi_table_header *table)
 
 acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id)
 {
-	acpi_native_uint i;
-	acpi_native_uint j;
-	acpi_native_uint k;
+	u32 i;
+	u32 j;
+	u32 k;
 	acpi_status status;
 
 	ACPI_FUNCTION_TRACE(ut_allocate_owner_id);
@@ -273,7 +269,7 @@ void acpi_ut_release_owner_id(acpi_owner_id * owner_id_ptr)
 {
 	acpi_owner_id owner_id = *owner_id_ptr;
 	acpi_status status;
-	acpi_native_uint index;
+	u32 index;
 	u32 bit;
 
 	ACPI_FUNCTION_TRACE_U32(ut_release_owner_id, owner_id);
@@ -593,7 +589,7 @@ acpi_ut_display_init_pathname(u8 type,
  *
  ******************************************************************************/
 
-u8 acpi_ut_valid_acpi_char(char character, acpi_native_uint position)
+u8 acpi_ut_valid_acpi_char(char character, u32 position)
 {
 
 	if (!((character >= 'A' && character <= 'Z') ||
@@ -628,7 +624,7 @@ u8 acpi_ut_valid_acpi_char(char character, acpi_native_uint position)
 
 u8 acpi_ut_valid_acpi_name(u32 name)
 {
-	acpi_native_uint i;
+	u32 i;
 
 	ACPI_FUNCTION_ENTRY();
 
@@ -657,7 +653,7 @@ u8 acpi_ut_valid_acpi_name(u32 name)
 
 acpi_name acpi_ut_repair_name(char *name)
 {
-	acpi_native_uint i;
+       u32 i;
 	char new_name[ACPI_NAME_SIZE];
 
 	for (i = 0; i < ACPI_NAME_SIZE; i++) {
@@ -1024,7 +1020,7 @@ acpi_ut_walk_package_tree(union acpi_operand_object * source_object,
  ******************************************************************************/
 
 void ACPI_INTERNAL_VAR_XFACE
-acpi_ut_error(char *module_name, u32 line_number, char *format, ...)
+acpi_ut_error(const char *module_name, u32 line_number, const char *format, ...)
 {
 	va_list args;
 
@@ -1037,8 +1033,8 @@ acpi_ut_error(char *module_name, u32 line_number, char *format, ...)
 }
 
 void ACPI_INTERNAL_VAR_XFACE
-acpi_ut_exception(char *module_name,
-		  u32 line_number, acpi_status status, char *format, ...)
+acpi_ut_exception(const char *module_name,
+		  u32 line_number, acpi_status status, const char *format, ...)
 {
 	va_list args;
 
@@ -1054,7 +1050,8 @@ acpi_ut_exception(char *module_name,
 EXPORT_SYMBOL(acpi_ut_exception);
 
 void ACPI_INTERNAL_VAR_XFACE
-acpi_ut_warning(char *module_name, u32 line_number, char *format, ...)
+acpi_ut_warning(const char *module_name,
+		u32 line_number, const char *format, ...)
 {
 	va_list args;
 
@@ -1067,7 +1064,7 @@ acpi_ut_warning(char *module_name, u32 line_number, char *format, ...)
 }
 
 void ACPI_INTERNAL_VAR_XFACE
-acpi_ut_info(char *module_name, u32 line_number, char *format, ...)
+acpi_ut_info(const char *module_name, u32 line_number, const char *format, ...)
 {
 	va_list args;
 
diff --git a/drivers/acpi/utilities/utmutex.c b/drivers/acpi/utilities/utmutex.c
index f7d602b1a894..7331dde9e1b3 100644
--- a/drivers/acpi/utilities/utmutex.c
+++ b/drivers/acpi/utilities/utmutex.c
@@ -218,7 +218,7 @@ acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id)
 		 * the mutex ordering rule.  This indicates a coding error somewhere in
 		 * the ACPI subsystem code.
 		 */
-		for (i = mutex_id; i < ACPI_MAX_MUTEX; i++) {
+		for (i = mutex_id; i < ACPI_NUM_MUTEX; i++) {
 			if (acpi_gbl_mutex_info[i].thread_id == this_thread_id) {
 				if (i == mutex_id) {
 					ACPI_ERROR((AE_INFO,
@@ -315,7 +315,7 @@ acpi_status acpi_ut_release_mutex(acpi_mutex_handle mutex_id)
 		 * ordering rule.  This indicates a coding error somewhere in
 		 * the ACPI subsystem code.
 		 */
-		for (i = mutex_id; i < ACPI_MAX_MUTEX; i++) {
+		for (i = mutex_id; i < ACPI_NUM_MUTEX; i++) {
 			if (acpi_gbl_mutex_info[i].thread_id == this_thread_id) {
 				if (i == mutex_id) {
 					continue;
diff --git a/drivers/acpi/utilities/utobject.c b/drivers/acpi/utilities/utobject.c
index e68466de8044..e25484495e65 100644
--- a/drivers/acpi/utilities/utobject.c
+++ b/drivers/acpi/utilities/utobject.c
@@ -83,7 +83,8 @@ acpi_ut_get_element_length(u8 object_type,
  *
  ******************************************************************************/
 
-union acpi_operand_object *acpi_ut_create_internal_object_dbg(char *module_name,
+union acpi_operand_object *acpi_ut_create_internal_object_dbg(const char
+							      *module_name,
 							      u32 line_number,
 							      u32 component_id,
 							      acpi_object_type
@@ -175,8 +176,8 @@ union acpi_operand_object *acpi_ut_create_package_object(u32 count)
 	 * Create the element array. Count+1 allows the array to be null
 	 * terminated.
 	 */
-	package_elements = ACPI_ALLOCATE_ZEROED((acpi_size)
-						(count + 1) * sizeof(void *));
+	package_elements = ACPI_ALLOCATE_ZEROED(((acpi_size) count +
+						 1) * sizeof(void *));
 	if (!package_elements) {
 		acpi_ut_remove_reference(package_desc);
 		return_PTR(NULL);
@@ -347,7 +348,7 @@ u8 acpi_ut_valid_internal_object(void *object)
  *
  ******************************************************************************/
 
-void *acpi_ut_allocate_object_desc_dbg(char *module_name,
+void *acpi_ut_allocate_object_desc_dbg(const char *module_name,
 				       u32 line_number, u32 component_id)
 {
 	union acpi_operand_object *object;
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index d089c4519d45..64c889331f3b 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -631,6 +631,76 @@ acpi_video_bus_DOS(struct acpi_video_bus *video, int bios_flag, int lcd_flag)
  *  	device	: video output device (LCD, CRT, ..)
  *
  *  Return Value:
+ *	Maximum brightness level
+ *
+ *  Allocate and initialize device->brightness.
+ */
+
+static int
+acpi_video_init_brightness(struct acpi_video_device *device)
+{
+	union acpi_object *obj = NULL;
+	int i, max_level = 0, count = 0;
+	union acpi_object *o;
+	struct acpi_video_device_brightness *br = NULL;
+
+	if (!ACPI_SUCCESS(acpi_video_device_lcd_query_levels(device, &obj))) {
+		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Could not query available "
+						"LCD brightness level\n"));
+		goto out;
+	}
+
+	if (obj->package.count < 2)
+		goto out;
+
+	br = kzalloc(sizeof(*br), GFP_KERNEL);
+	if (!br) {
+		printk(KERN_ERR "can't allocate memory\n");
+		goto out;
+	}
+
+	br->levels = kmalloc(obj->package.count * sizeof *(br->levels),
+				GFP_KERNEL);
+	if (!br->levels)
+		goto out_free;
+
+	for (i = 0; i < obj->package.count; i++) {
+		o = (union acpi_object *)&obj->package.elements[i];
+		if (o->type != ACPI_TYPE_INTEGER) {
+			printk(KERN_ERR PREFIX "Invalid data\n");
+			continue;
+		}
+		br->levels[count] = (u32) o->integer.value;
+
+		if (br->levels[count] > max_level)
+			max_level = br->levels[count];
+		count++;
+	}
+
+	if (count < 2)
+		goto out_free_levels;
+
+	br->count = count;
+	device->brightness = br;
+	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "found %d brightness levels\n", count));
+	kfree(obj);
+	return max_level;
+
+out_free_levels:
+	kfree(br->levels);
+out_free:
+	kfree(br);
+out:
+	device->brightness = NULL;
+	kfree(obj);
+	return 0;
+}
+
+/*
+ *  Arg:
+ *	device	: video output device (LCD, CRT, ..)
+ *
+ *  Return Value:
  *  	None
  *
  *  Find out all required AML methods defined under the output
@@ -640,10 +710,7 @@ acpi_video_bus_DOS(struct acpi_video_bus *video, int bios_flag, int lcd_flag)
 static void acpi_video_device_find_cap(struct acpi_video_device *device)
 {
 	acpi_handle h_dummy1;
-	int i;
 	u32 max_level = 0;
-	union acpi_object *obj = NULL;
-	struct acpi_video_device_brightness *br = NULL;
 
 
 	memset(&device->cap, 0, sizeof(device->cap));
@@ -672,53 +739,7 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
 		device->cap._DSS = 1;
 	}
 
-	if (ACPI_SUCCESS(acpi_video_device_lcd_query_levels(device, &obj))) {
-
-		if (obj->package.count >= 2) {
-			int count = 0;
-			union acpi_object *o;
-
-			br = kzalloc(sizeof(*br), GFP_KERNEL);
-			if (!br) {
-				printk(KERN_ERR "can't allocate memory\n");
-			} else {
-				br->levels = kmalloc(obj->package.count *
-						     sizeof *(br->levels), GFP_KERNEL);
-				if (!br->levels)
-					goto out;
-
-				for (i = 0; i < obj->package.count; i++) {
-					o = (union acpi_object *)&obj->package.
-					    elements[i];
-					if (o->type != ACPI_TYPE_INTEGER) {
-						printk(KERN_ERR PREFIX "Invalid data\n");
-						continue;
-					}
-					br->levels[count] = (u32) o->integer.value;
-
-					if (br->levels[count] > max_level)
-						max_level = br->levels[count];
-					count++;
-				}
-			      out:
-				if (count < 2) {
-					kfree(br->levels);
-					kfree(br);
-				} else {
-					br->count = count;
-					device->brightness = br;
-					ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-							  "found %d brightness levels\n",
-							  count));
-				}
-			}
-		}
-
-	} else {
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Could not query available LCD brightness level\n"));
-	}
-
-	kfree(obj);
+	max_level = acpi_video_init_brightness(device);
 
 	if (device->cap._BCL && device->cap._BCM && device->cap._BQC && max_level > 0){
 		int result;
@@ -1695,6 +1716,8 @@ static void
 acpi_video_switch_brightness(struct acpi_video_device *device, int event)
 {
 	unsigned long level_current, level_next;
+	if (!device->brightness)
+		return;
 	acpi_video_device_lcd_get_level_current(device, &level_current);
 	level_next = acpi_video_get_next_level(device, level_current, event);
 	acpi_video_device_lcd_set_level(device, level_next);