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

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
  acpi,msi-laptop: Fall back to EC polling mode for MSI laptop specific EC commands
  sony-laptop: rename SONY_LAPTOP_OLD to a more meaningful SONYPI_COMPAT
  asus-laptop: version bump and lindent
  asus-laptop: fix light sens init
  asus-laptop: add GPS support
  asus-laptop: notify ALL events
  ACPICA: Lindent
  ACPI: created a dedicated workqueue for notify() execution
  Revert "ACPICA: fix AML mutex re-entrancy"
  Revert "Execute AML Notify() requests on stack."
  Revert "ACPICA: revert "acpi_serialize" changes"
  ACPI: delete un-reliable concept of cooling mode
  ACPI: thermal trip points are read-only

70 files changed, 721 insertions, 727 deletions

diff --git a/drivers/acpi/dispatcher/dsmethod.c b/drivers/acpi/dispatcher/dsmethod.c
index 1683e5c5b94..1cbe6190582 100644
--- a/drivers/acpi/dispatcher/dsmethod.c
+++ b/drivers/acpi/dispatcher/dsmethod.c
@@ -231,8 +231,10 @@ acpi_ds_begin_method_execution(struct acpi_namespace_node *method_node,
 		 * Obtain the method mutex if necessary. Do not acquire mutex for a
 		 * recursive call.
 		 */
-		if (acpi_os_get_thread_id() !=
-		    obj_desc->method.mutex->mutex.owner_thread_id) {
+		if (!walk_state ||
+		    !obj_desc->method.mutex->mutex.owner_thread ||
+		    (walk_state->thread !=
+		     obj_desc->method.mutex->mutex.owner_thread)) {
 			/*
 			 * Acquire the method mutex. This releases the interpreter if we
 			 * block (and reacquires it before it returns)
@@ -246,14 +248,14 @@ acpi_ds_begin_method_execution(struct acpi_namespace_node *method_node,
 			}
 
 			/* Update the mutex and walk info and save the original sync_level */
-			obj_desc->method.mutex->mutex.owner_thread_id =
-				acpi_os_get_thread_id();
 
 			if (walk_state) {
 				obj_desc->method.mutex->mutex.
 				    original_sync_level =
 				    walk_state->thread->current_sync_level;
 
+				obj_desc->method.mutex->mutex.owner_thread =
+				    walk_state->thread;
 				walk_state->thread->current_sync_level =
 				    obj_desc->method.sync_level;
 			} else {
@@ -567,7 +569,7 @@ acpi_ds_terminate_control_method(union acpi_operand_object *method_desc,
 
 			acpi_os_release_mutex(method_desc->method.mutex->mutex.
 					      os_mutex);
-			method_desc->method.mutex->mutex.owner_thread_id = ACPI_MUTEX_NOT_ACQUIRED;
+			method_desc->method.mutex->mutex.owner_thread = NULL;
 		}
 	}
 
diff --git a/drivers/acpi/dispatcher/dsopcode.c b/drivers/acpi/dispatcher/dsopcode.c
index 6c6104a7a24..fc9da4879cb 100644
--- a/drivers/acpi/dispatcher/dsopcode.c
+++ b/drivers/acpi/dispatcher/dsopcode.c
@@ -866,8 +866,7 @@ acpi_ds_eval_data_object_operands(struct acpi_walk_state *walk_state,
 		    ((op->common.parent->common.aml_opcode != AML_PACKAGE_OP) &&
 		     (op->common.parent->common.aml_opcode !=
 		      AML_VAR_PACKAGE_OP)
-		     && (op->common.parent->common.aml_opcode !=
-			 AML_NAME_OP))) {
+		     && (op->common.parent->common.aml_opcode != AML_NAME_OP))) {
 			walk_state->result_obj = obj_desc;
 		}
 	}
diff --git a/drivers/acpi/dispatcher/dsutils.c b/drivers/acpi/dispatcher/dsutils.c
index e4073e05a75..71503c036f7 100644
--- a/drivers/acpi/dispatcher/dsutils.c
+++ b/drivers/acpi/dispatcher/dsutils.c
@@ -556,10 +556,9 @@ acpi_ds_create_operand(struct acpi_walk_state *walk_state,
 					 * indicate this to the interpreter, set the
 					 * object to the root
 					 */
-					obj_desc =
-					    ACPI_CAST_PTR(union
-							  acpi_operand_object,
-							  acpi_gbl_root_node);
+					obj_desc = ACPI_CAST_PTR(union
+								 acpi_operand_object,
+								 acpi_gbl_root_node);
 					status = AE_OK;
 				} else {
 					/*
diff --git a/drivers/acpi/dispatcher/dswstate.c b/drivers/acpi/dispatcher/dswstate.c
index 16c8e38b51e..5afcdd9c744 100644
--- a/drivers/acpi/dispatcher/dswstate.c
+++ b/drivers/acpi/dispatcher/dswstate.c
@@ -630,12 +630,9 @@ struct acpi_walk_state *acpi_ds_pop_walk_state(struct acpi_thread_state *thread)
  *
  ******************************************************************************/
 
-struct acpi_walk_state *acpi_ds_create_walk_state(acpi_owner_id owner_id,
-						  union acpi_parse_object
-						  *origin,
-						  union acpi_operand_object
-						  *method_desc,
-						  struct acpi_thread_state
+struct acpi_walk_state *acpi_ds_create_walk_state(acpi_owner_id owner_id, union acpi_parse_object
+						  *origin, union acpi_operand_object
+						  *method_desc, struct acpi_thread_state
 						  *thread)
 {
 	struct acpi_walk_state *walk_state;
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index e08cf98f504..82f496c0767 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -147,9 +147,10 @@ static inline int acpi_ec_check_status(struct acpi_ec *ec, enum ec_event event,
 	return 0;
 }
 
-static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, unsigned count)
+static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event,
+                        unsigned count, int force_poll)
 {
-	if (acpi_ec_mode == EC_POLL) {
+	if (unlikely(force_poll) || acpi_ec_mode == EC_POLL) {
 		unsigned long delay = jiffies + msecs_to_jiffies(ACPI_EC_DELAY);
 		while (time_before(jiffies, delay)) {
 			if (acpi_ec_check_status(ec, event, 0))
@@ -173,14 +174,15 @@ static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, unsigned count)
 
 static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, u8 command,
 					const u8 * wdata, unsigned wdata_len,
-					u8 * rdata, unsigned rdata_len)
+					u8 * rdata, unsigned rdata_len,
+					int force_poll)
 {
 	int result = 0;
 	unsigned count = atomic_read(&ec->event_count);
 	acpi_ec_write_cmd(ec, command);
 
 	for (; wdata_len > 0; --wdata_len) {
-		result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0, count);
+		result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0, count, force_poll);
 		if (result) {
 			printk(KERN_ERR PREFIX
 			       "write_cmd timeout, command = %d\n", command);
@@ -191,7 +193,7 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, u8 command,
 	}
 
 	if (!rdata_len) {
-		result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0, count);
+		result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0, count, force_poll);
 		if (result) {
 			printk(KERN_ERR PREFIX
 			       "finish-write timeout, command = %d\n", command);
@@ -202,7 +204,7 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, u8 command,
 	}
 
 	for (; rdata_len > 0; --rdata_len) {
-		result = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF_1, count);
+		result = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF_1, count, force_poll);
 		if (result) {
 			printk(KERN_ERR PREFIX "read timeout, command = %d\n",
 			       command);
@@ -217,7 +219,8 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, u8 command,
 
 static int acpi_ec_transaction(struct acpi_ec *ec, u8 command,
 			       const u8 * wdata, unsigned wdata_len,
-			       u8 * rdata, unsigned rdata_len)
+			       u8 * rdata, unsigned rdata_len,
+			       int force_poll)
 {
 	int status;
 	u32 glk;
@@ -240,7 +243,7 @@ static int acpi_ec_transaction(struct acpi_ec *ec, u8 command,
 	/* Make sure GPE is enabled before doing transaction */
 	acpi_enable_gpe(NULL, ec->gpe, ACPI_NOT_ISR);
 
-	status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0, 0);
+	status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0, 0, 0);
 	if (status) {
 		printk(KERN_DEBUG PREFIX
 		       "input buffer is not empty, aborting transaction\n");
@@ -249,7 +252,8 @@ static int acpi_ec_transaction(struct acpi_ec *ec, u8 command,
 
 	status = acpi_ec_transaction_unlocked(ec, command,
 					      wdata, wdata_len,
-					      rdata, rdata_len);
+					      rdata, rdata_len,
+					      force_poll);
 
       end:
 
@@ -267,12 +271,12 @@ static int acpi_ec_transaction(struct acpi_ec *ec, u8 command,
 int acpi_ec_burst_enable(struct acpi_ec *ec)
 {
 	u8 d;
-	return acpi_ec_transaction(ec, ACPI_EC_BURST_ENABLE, NULL, 0, &d, 1);
+	return acpi_ec_transaction(ec, ACPI_EC_BURST_ENABLE, NULL, 0, &d, 1, 0);
 }
 
 int acpi_ec_burst_disable(struct acpi_ec *ec)
 {
-	return acpi_ec_transaction(ec, ACPI_EC_BURST_DISABLE, NULL, 0, NULL, 0);
+	return acpi_ec_transaction(ec, ACPI_EC_BURST_DISABLE, NULL, 0, NULL, 0, 0);
 }
 
 static int acpi_ec_read(struct acpi_ec *ec, u8 address, u8 * data)
@@ -281,7 +285,7 @@ static int acpi_ec_read(struct acpi_ec *ec, u8 address, u8 * data)
 	u8 d;
 
 	result = acpi_ec_transaction(ec, ACPI_EC_COMMAND_READ,
-				     &address, 1, &d, 1);
+				     &address, 1, &d, 1, 0);
 	*data = d;
 	return result;
 }
@@ -290,7 +294,7 @@ static int acpi_ec_write(struct acpi_ec *ec, u8 address, u8 data)
 {
 	u8 wdata[2] = { address, data };
 	return acpi_ec_transaction(ec, ACPI_EC_COMMAND_WRITE,
-				   wdata, 2, NULL, 0);
+				   wdata, 2, NULL, 0, 0);
 }
 
 /*
@@ -349,13 +353,15 @@ EXPORT_SYMBOL(ec_write);
 
 int ec_transaction(u8 command,
 		   const u8 * wdata, unsigned wdata_len,
-		   u8 * rdata, unsigned rdata_len)
+		   u8 * rdata, unsigned rdata_len,
+		   int force_poll)
 {
 	if (!first_ec)
 		return -ENODEV;
 
 	return acpi_ec_transaction(first_ec, command, wdata,
-				   wdata_len, rdata, rdata_len);
+				   wdata_len, rdata, rdata_len,
+				   force_poll);
 }
 
 EXPORT_SYMBOL(ec_transaction);
@@ -374,7 +380,7 @@ static int acpi_ec_query(struct acpi_ec *ec, u8 * data)
 	 * bit to be cleared (and thus clearing the interrupt source).
 	 */
 
-	result = acpi_ec_transaction(ec, ACPI_EC_COMMAND_QUERY, NULL, 0, &d, 1);
+	result = acpi_ec_transaction(ec, ACPI_EC_COMMAND_QUERY, NULL, 0, &d, 1, 0);
 	if (result)
 		return result;
 
@@ -410,6 +416,7 @@ static u32 acpi_ec_gpe_handler(void *data)
 	acpi_status status = AE_OK;
 	u8 value;
 	struct acpi_ec *ec = data;
+
 	atomic_inc(&ec->event_count);
 
 	if (acpi_ec_mode == EC_INTR) {
diff --git a/drivers/acpi/events/evgpe.c b/drivers/acpi/events/evgpe.c
index 635ba449ebc..e22f4a973c0 100644
--- a/drivers/acpi/events/evgpe.c
+++ b/drivers/acpi/events/evgpe.c
@@ -341,9 +341,8 @@ struct acpi_gpe_event_info *acpi_ev_get_gpe_event_info(acpi_handle gpe_device,
 
 	/* A Non-NULL gpe_device means this is a GPE Block Device */
 
-	obj_desc =
-	    acpi_ns_get_attached_object((struct acpi_namespace_node *)
-					gpe_device);
+	obj_desc = acpi_ns_get_attached_object((struct acpi_namespace_node *)
+					       gpe_device);
 	if (!obj_desc || !obj_desc->device.gpe_block) {
 		return (NULL);
 	}
diff --git a/drivers/acpi/events/evgpeblk.c b/drivers/acpi/events/evgpeblk.c
index ad5bc76edf4..902c287b3a4 100644
--- a/drivers/acpi/events/evgpeblk.c
+++ b/drivers/acpi/events/evgpeblk.c
@@ -1033,8 +1033,7 @@ acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device,
 
 			if (((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) ==
 			     ACPI_GPE_DISPATCH_METHOD)
-			    && (gpe_event_info->
-				flags & ACPI_GPE_TYPE_RUNTIME)) {
+			    && (gpe_event_info->flags & ACPI_GPE_TYPE_RUNTIME)) {
 				gpe_enabled_count++;
 			}
 
diff --git a/drivers/acpi/events/evmisc.c b/drivers/acpi/events/evmisc.c
index cae786ca860..21cb749d0c7 100644
--- a/drivers/acpi/events/evmisc.c
+++ b/drivers/acpi/events/evmisc.c
@@ -196,15 +196,12 @@ acpi_ev_queue_notify_request(struct acpi_namespace_node * node,
 		notify_info->notify.value = (u16) notify_value;
 		notify_info->notify.handler_obj = handler_obj;
 
-		acpi_ex_exit_interpreter();
-
-		acpi_ev_notify_dispatch(notify_info);
-
-		status = acpi_ex_enter_interpreter();
+		status =
+		    acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_ev_notify_dispatch,
+				    notify_info);
 		if (ACPI_FAILURE(status)) {
-			return_ACPI_STATUS(status);
+			acpi_ut_delete_generic_state(notify_info);
 		}
-
 	}
 
 	if (!handler_obj) {
@@ -323,8 +320,9 @@ static u32 acpi_ev_global_lock_handler(void *context)
 		acpi_gbl_global_lock_acquired = TRUE;
 		/* Send a unit to the semaphore */
 
-		if (ACPI_FAILURE(acpi_os_signal_semaphore(
-			acpi_gbl_global_lock_semaphore, 1))) {
+		if (ACPI_FAILURE
+		    (acpi_os_signal_semaphore
+		     (acpi_gbl_global_lock_semaphore, 1))) {
 			ACPI_ERROR((AE_INFO,
 				    "Could not signal Global Lock semaphore"));
 		}
@@ -450,7 +448,9 @@ acpi_status acpi_ev_acquire_global_lock(u16 timeout)
 	}
 
 	if (ACPI_FAILURE(status)) {
-		status = acpi_ex_system_wait_mutex(acpi_gbl_global_lock_mutex, timeout);
+		status =
+		    acpi_ex_system_wait_mutex(acpi_gbl_global_lock_mutex,
+					      timeout);
 	}
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
diff --git a/drivers/acpi/events/evregion.c b/drivers/acpi/events/evregion.c
index 96b0e843174..e99f0c435a4 100644
--- a/drivers/acpi/events/evregion.c
+++ b/drivers/acpi/events/evregion.c
@@ -291,7 +291,6 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
 			       u32 bit_width, acpi_integer * value)
 {
 	acpi_status status;
-	acpi_status status2;
 	acpi_adr_space_handler handler;
 	acpi_adr_space_setup region_setup;
 	union acpi_operand_object *handler_desc;
@@ -345,7 +344,7 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
 		 * setup will potentially execute control methods
 		 * (e.g., _REG method for this region)
 		 */
-		acpi_ex_exit_interpreter();
+		acpi_ex_relinquish_interpreter();
 
 		status = region_setup(region_obj, ACPI_REGION_ACTIVATE,
 				      handler_desc->address_space.context,
@@ -353,10 +352,7 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
 
 		/* Re-enter the interpreter */
 
-		status2 = acpi_ex_enter_interpreter();
-		if (ACPI_FAILURE(status2)) {
-			return_ACPI_STATUS(status2);
-		}
+		acpi_ex_reacquire_interpreter();
 
 		/* Check for failure of the Region Setup */
 
@@ -409,7 +405,7 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
 		 * exit the interpreter because the handler *might* block -- we don't
 		 * know what it will do, so we can't hold the lock on the intepreter.
 		 */
-		acpi_ex_exit_interpreter();
+		acpi_ex_relinquish_interpreter();
 	}
 
 	/* Call the handler */
@@ -430,10 +426,7 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
 		 * We just returned from a non-default handler, we must re-enter the
 		 * interpreter
 		 */
-		status2 = acpi_ex_enter_interpreter();
-		if (ACPI_FAILURE(status2)) {
-			return_ACPI_STATUS(status2);
-		}
+		acpi_ex_reacquire_interpreter();
 	}
 
 	return_ACPI_STATUS(status);
diff --git a/drivers/acpi/events/evrgnini.c b/drivers/acpi/events/evrgnini.c
index a4fa7e6822a..400d90fca96 100644
--- a/drivers/acpi/events/evrgnini.c
+++ b/drivers/acpi/events/evrgnini.c
@@ -228,7 +228,8 @@ acpi_ev_pci_config_region_setup(acpi_handle handle,
 
 				/* Install a handler for this PCI root bridge */
 
-				status = acpi_install_address_space_handler((acpi_handle) pci_root_node, ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL);
+				status =
+				    acpi_install_address_space_handler((acpi_handle) pci_root_node, ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL);
 				if (ACPI_FAILURE(status)) {
 					if (status == AE_SAME_HANDLER) {
 						/*
diff --git a/drivers/acpi/events/evxface.c b/drivers/acpi/events/evxface.c
index a3379bafa67..6d866a01f5f 100644
--- a/drivers/acpi/events/evxface.c
+++ b/drivers/acpi/events/evxface.c
@@ -91,7 +91,6 @@ acpi_status acpi_install_exception_handler(acpi_exception_handler handler)
 
 ACPI_EXPORT_SYMBOL(acpi_install_exception_handler)
 #endif				/*  ACPI_FUTURE_USAGE  */
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_install_fixed_event_handler
@@ -768,11 +767,9 @@ acpi_status acpi_acquire_global_lock(u16 timeout, u32 * handle)
 		return (AE_BAD_PARAMETER);
 	}
 
-	status = acpi_ex_enter_interpreter();
-	if (ACPI_FAILURE(status)) {
-		return (status);
-	}
+	/* Must lock interpreter to prevent race conditions */
 
+	acpi_ex_enter_interpreter();
 	status = acpi_ev_acquire_global_lock(timeout);
 	acpi_ex_exit_interpreter();
 
diff --git a/drivers/acpi/events/evxfevnt.c b/drivers/acpi/events/evxfevnt.c
index 17065e98807..9cbd3414a57 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
 /*******************************************************************************
  *
@@ -568,7 +567,6 @@ 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/exconvrt.c b/drivers/acpi/executer/exconvrt.c
index d470e8b1f4e..79f2c0d42c0 100644
--- a/drivers/acpi/executer/exconvrt.c
+++ b/drivers/acpi/executer/exconvrt.c
@@ -512,9 +512,8 @@ acpi_ex_convert_to_string(union acpi_operand_object * obj_desc,
 		 * Create a new string object and string buffer
 		 * (-1 because of extra separator included in string_length from above)
 		 */
-		return_desc =
-		    acpi_ut_create_string_object((acpi_size)
-						 (string_length - 1));
+		return_desc = acpi_ut_create_string_object((acpi_size)
+							   (string_length - 1));
 		if (!return_desc) {
 			return_ACPI_STATUS(AE_NO_MEMORY);
 		}
diff --git a/drivers/acpi/executer/excreate.c b/drivers/acpi/executer/excreate.c
index ae97812681a..6e9a23e47fe 100644
--- a/drivers/acpi/executer/excreate.c
+++ b/