diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 95223d8..36ca365 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -84,19 +84,18 @@
 {
 	acpi_status status = AE_OK;
 
-	ACPI_FUNCTION_TRACE("acpi_ac_get_state");
 
 	if (!ac)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	status = acpi_evaluate_integer(ac->handle, "_PSR", NULL, &ac->state);
 	if (ACPI_FAILURE(status)) {
 		ACPI_EXCEPTION((AE_INFO, status, "Error reading AC Adapter state"));
 		ac->state = ACPI_AC_STATUS_UNKNOWN;
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 /* --------------------------------------------------------------------------
@@ -109,14 +108,13 @@
 {
 	struct acpi_ac *ac = (struct acpi_ac *)seq->private;
 
-	ACPI_FUNCTION_TRACE("acpi_ac_seq_show");
 
 	if (!ac)
-		return_VALUE(0);
+		return 0;
 
 	if (acpi_ac_get_state(ac)) {
 		seq_puts(seq, "ERROR: Unable to read AC Adapter state\n");
-		return_VALUE(0);
+		return 0;
 	}
 
 	seq_puts(seq, "state:                   ");
@@ -132,7 +130,7 @@
 		break;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_ac_open_fs(struct inode *inode, struct file *file)
@@ -144,13 +142,12 @@
 {
 	struct proc_dir_entry *entry = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_ac_add_fs");
 
 	if (!acpi_device_dir(device)) {
 		acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
 						     acpi_ac_dir);
 		if (!acpi_device_dir(device))
-			return_VALUE(-ENODEV);
+			return -ENODEV;
 		acpi_device_dir(device)->owner = THIS_MODULE;
 	}
 
@@ -158,19 +155,18 @@
 	entry = create_proc_entry(ACPI_AC_FILE_STATE,
 				  S_IRUGO, acpi_device_dir(device));
 	if (!entry)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	else {
 		entry->proc_fops = &acpi_ac_fops;
 		entry->data = acpi_driver_data(device);
 		entry->owner = THIS_MODULE;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_ac_remove_fs(struct acpi_device *device)
 {
-	ACPI_FUNCTION_TRACE("acpi_ac_remove_fs");
 
 	if (acpi_device_dir(device)) {
 		remove_proc_entry(ACPI_AC_FILE_STATE, acpi_device_dir(device));
@@ -179,7 +175,7 @@
 		acpi_device_dir(device) = NULL;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 /* --------------------------------------------------------------------------
@@ -191,13 +187,12 @@
 	struct acpi_ac *ac = (struct acpi_ac *)data;
 	struct acpi_device *device = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_ac_notify");
 
 	if (!ac)
-		return_VOID;
+		return;
 
 	if (acpi_bus_get_device(ac->handle, &device))
-		return_VOID;
+		return;
 
 	switch (event) {
 	case ACPI_AC_NOTIFY_STATUS:
@@ -210,7 +205,7 @@
 		break;
 	}
 
-	return_VOID;
+	return;
 }
 
 static int acpi_ac_add(struct acpi_device *device)
@@ -219,14 +214,13 @@
 	acpi_status status = AE_OK;
 	struct acpi_ac *ac = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_ac_add");
 
 	if (!device)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	ac = kmalloc(sizeof(struct acpi_ac), GFP_KERNEL);
 	if (!ac)
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 	memset(ac, 0, sizeof(struct acpi_ac));
 
 	ac->handle = device->handle;
@@ -260,7 +254,7 @@
 		kfree(ac);
 	}
 
-	return_VALUE(result);
+	return result;
 }
 
 static int acpi_ac_remove(struct acpi_device *device, int type)
@@ -268,10 +262,9 @@
 	acpi_status status = AE_OK;
 	struct acpi_ac *ac = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_ac_remove");
 
 	if (!device || !acpi_driver_data(device))
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	ac = (struct acpi_ac *)acpi_driver_data(device);
 
@@ -282,38 +275,36 @@
 
 	kfree(ac);
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int __init acpi_ac_init(void)
 {
 	int result = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_ac_init");
 
 	acpi_ac_dir = proc_mkdir(ACPI_AC_CLASS, acpi_root_dir);
 	if (!acpi_ac_dir)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	acpi_ac_dir->owner = THIS_MODULE;
 
 	result = acpi_bus_register_driver(&acpi_ac_driver);
 	if (result < 0) {
 		remove_proc_entry(ACPI_AC_CLASS, acpi_root_dir);
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 static void __exit acpi_ac_exit(void)
 {
-	ACPI_FUNCTION_TRACE("acpi_ac_exit");
 
 	acpi_bus_unregister_driver(&acpi_ac_driver);
 
 	remove_proc_entry(ACPI_AC_CLASS, acpi_root_dir);
 
-	return_VOID;
+	return;
 }
 
 module_init(acpi_ac_init);
diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index c7c8d53..b054695 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -85,12 +85,11 @@
 	struct acpi_resource *resource = NULL;
 	struct acpi_resource_address64 address64;
 
-	ACPI_FUNCTION_TRACE("acpi_memory_get_device_resources");
 
 	/* Get the range from the _CRS */
 	status = acpi_get_current_resources(mem_device->handle, &buffer);
 	if (ACPI_FAILURE(status))
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	resource = (struct acpi_resource *)buffer.pointer;
 	status = acpi_resource_to_address64(resource, &address64);
@@ -106,7 +105,7 @@
 	}
 
 	acpi_os_free(buffer.pointer);
-	return_VALUE(0);
+	return 0;
 }
 
 static int
@@ -118,7 +117,6 @@
 	struct acpi_device *device = NULL;
 	struct acpi_device *pdevice = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_memory_get_device");
 
 	if (!acpi_bus_get_device(handle, &device) && device)
 		goto end;
@@ -126,14 +124,14 @@
 	status = acpi_get_parent(handle, &phandle);
 	if (ACPI_FAILURE(status)) {
 		ACPI_EXCEPTION((AE_INFO, status, "Cannot find acpi parent"));
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 	}
 
 	/* Get the parent device */
 	status = acpi_bus_get_device(phandle, &pdevice);
 	if (ACPI_FAILURE(status)) {
 		ACPI_EXCEPTION((AE_INFO, status, "Cannot get acpi bus device"));
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 	}
 
 	/*
@@ -143,29 +141,28 @@
 	status = acpi_bus_add(&device, pdevice, handle, ACPI_BUS_TYPE_DEVICE);
 	if (ACPI_FAILURE(status)) {
 		ACPI_EXCEPTION((AE_INFO, status, "Cannot add acpi bus"));
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 	}
 
       end:
 	*mem_device = acpi_driver_data(device);
 	if (!(*mem_device)) {
 		printk(KERN_ERR "\n driver data not found");
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_memory_check_device(struct acpi_memory_device *mem_device)
 {
 	unsigned long current_status;
 
-	ACPI_FUNCTION_TRACE("acpi_memory_check_device");
 
 	/* Get device present/absent information from the _STA */
 	if (ACPI_FAILURE(acpi_evaluate_integer(mem_device->handle, "_STA",
 					       NULL, &current_status)))
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	/*
 	 * Check for device status. Device should be
 	 * present/enabled/functioning.
@@ -173,16 +170,15 @@
 	if (!((current_status & ACPI_MEMORY_STA_PRESENT)
 	      && (current_status & ACPI_MEMORY_STA_ENABLED)
 	      && (current_status & ACPI_MEMORY_STA_FUNCTIONAL)))
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_memory_enable_device(struct acpi_memory_device *mem_device)
 {
 	int result;
 
-	ACPI_FUNCTION_TRACE("acpi_memory_enable_device");
 
 	/* Get the range from the _CRS */
 	result = acpi_memory_get_device_resources(mem_device);
@@ -213,7 +209,6 @@
 	union acpi_object arg;
 	unsigned long current_status;
 
-	ACPI_FUNCTION_TRACE("acpi_memory_powerdown_device");
 
 	/* Issue the _EJ0 command */
 	arg_list.count = 1;
@@ -225,20 +220,20 @@
 	/* Return on _EJ0 failure */
 	if (ACPI_FAILURE(status)) {
 		ACPI_EXCEPTION((AE_INFO, status, "_EJ0 failed"));
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
 	/* Evalute _STA to check if the device is disabled */
 	status = acpi_evaluate_integer(mem_device->handle, "_STA",
 				       NULL, &current_status);
 	if (ACPI_FAILURE(status))
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	/* Check for device status.  Device should be disabled */
 	if (current_status & ACPI_MEMORY_STA_ENABLED)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_memory_disable_device(struct acpi_memory_device *mem_device)
@@ -247,7 +242,6 @@
 	u64 start = mem_device->start_addr;
 	u64 len = mem_device->length;
 
-	ACPI_FUNCTION_TRACE("acpi_memory_disable_device");
 
 	/*
 	 * Ask the VM to offline this memory range.
@@ -255,7 +249,7 @@
 	 */
 	result = remove_memory(start, len);
 	if (result)
-		return_VALUE(result);
+		return result;
 
 	/* Power-off and eject the device */
 	result = acpi_memory_powerdown_device(mem_device);
@@ -274,7 +268,6 @@
 	struct acpi_memory_device *mem_device;
 	struct acpi_device *device;
 
-	ACPI_FUNCTION_TRACE("acpi_memory_device_notify");
 
 	switch (event) {
 	case ACPI_NOTIFY_BUS_CHECK:
@@ -287,7 +280,7 @@
 					  "\nReceived DEVICE CHECK notification for device\n"));
 		if (acpi_memory_get_device(handle, &mem_device)) {
 			printk(KERN_ERR PREFIX "Cannot find driver data\n");
-			return_VOID;
+			return;
 		}
 
 		if (!acpi_memory_check_device(mem_device)) {
@@ -329,7 +322,7 @@
 		break;
 	}
 
-	return_VOID;
+	return;
 }
 
 static int acpi_memory_device_add(struct acpi_device *device)
@@ -337,14 +330,13 @@
 	int result;
 	struct acpi_memory_device *mem_device = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_memory_device_add");
 
 	if (!device)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	mem_device = kmalloc(sizeof(struct acpi_memory_device), GFP_KERNEL);
 	if (!mem_device)
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 	memset(mem_device, 0, sizeof(struct acpi_memory_device));
 
 	mem_device->handle = device->handle;
@@ -356,7 +348,7 @@
 	result = acpi_memory_get_device_resources(mem_device);
 	if (result) {
 		kfree(mem_device);
-		return_VALUE(result);
+		return result;
 	}
 
 	/* Set the device state */
@@ -364,22 +356,21 @@
 
 	printk(KERN_INFO "%s \n", acpi_device_name(device));
 
-	return_VALUE(result);
+	return result;
 }
 
 static int acpi_memory_device_remove(struct acpi_device *device, int type)
 {
 	struct acpi_memory_device *mem_device = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_memory_device_remove");
 
 	if (!device || !acpi_driver_data(device))
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	mem_device = (struct acpi_memory_device *)acpi_driver_data(device);
 	kfree(mem_device);
 
-	return_VALUE(0);
+	return 0;
 }
 
 /*
@@ -392,16 +383,15 @@
 	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
 	struct acpi_device_info *info;
 
-	ACPI_FUNCTION_TRACE("is_memory_device");
 
 	status = acpi_get_object_info(handle, &buffer);
 	if (ACPI_FAILURE(status))
-		return_ACPI_STATUS(status);
+		return status;
 
 	info = buffer.pointer;
 	if (!(info->valid & ACPI_VALID_HID)) {
 		acpi_os_free(buffer.pointer);
-		return_ACPI_STATUS(AE_ERROR);
+		return AE_ERROR;
 	}
 
 	hardware_id = info->hardware_id.value;
@@ -410,7 +400,7 @@
 		status = AE_ERROR;
 
 	acpi_os_free(buffer.pointer);
-	return_ACPI_STATUS(status);
+	return status;
 }
 
 static acpi_status
@@ -419,18 +409,17 @@
 {
 	acpi_status status;
 
-	ACPI_FUNCTION_TRACE("acpi_memory_register_notify_handler");
 
 	status = is_memory_device(handle);
 	if (ACPI_FAILURE(status)){
 		ACPI_EXCEPTION((AE_INFO, status, "handle is no memory device"));
-		return_ACPI_STATUS(AE_OK);	/* continue */
+		return AE_OK;	/* continue */
 	}
 
 	status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
 					     acpi_memory_device_notify, NULL);
 	/* continue */
-	return_ACPI_STATUS(AE_OK);
+	return AE_OK;
 }
 
 static acpi_status
@@ -439,19 +428,18 @@
 {
 	acpi_status status;
 
-	ACPI_FUNCTION_TRACE("acpi_memory_deregister_notify_handler");
 
 	status = is_memory_device(handle);
 	if (ACPI_FAILURE(status)){
 		ACPI_EXCEPTION((AE_INFO, status, "handle is no memory device"));
-		return_ACPI_STATUS(AE_OK);	/* continue */
+		return AE_OK;	/* continue */
 	}
 
 	status = acpi_remove_notify_handler(handle,
 					    ACPI_SYSTEM_NOTIFY,
 					    acpi_memory_device_notify);
 
-	return_ACPI_STATUS(AE_OK);	/* continue */
+	return AE_OK;	/* continue */
 }
 
 static int __init acpi_memory_device_init(void)
@@ -459,12 +447,11 @@
 	int result;
 	acpi_status status;
 
-	ACPI_FUNCTION_TRACE("acpi_memory_device_init");
 
 	result = acpi_bus_register_driver(&acpi_memory_device_driver);
 
 	if (result < 0)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
 				     ACPI_UINT32_MAX,
@@ -474,17 +461,16 @@
 	if (ACPI_FAILURE(status)) {
 		ACPI_EXCEPTION((AE_INFO, status, "walk_namespace failed"));
 		acpi_bus_unregister_driver(&acpi_memory_device_driver);
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 static void __exit acpi_memory_device_exit(void)
 {
 	acpi_status status;
 
-	ACPI_FUNCTION_TRACE("acpi_memory_device_exit");
 
 	/*
 	 * Adding this to un-install notification handlers for all the device
@@ -500,7 +486,7 @@
 
 	acpi_bus_unregister_driver(&acpi_memory_device_driver);
 
-	return_VOID;
+	return;
 }
 
 module_init(acpi_memory_device_init);
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 3b92c94..00b0728 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -132,17 +132,16 @@
 	struct acpi_buffer data = { 0, NULL };
 	union acpi_object *package = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_battery_get_info");
 
 	if (!battery || !bif)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	/* Evalute _BIF */
 
 	status = acpi_evaluate_object(battery->handle, "_BIF", NULL, &buffer);
 	if (ACPI_FAILURE(status)) {
 		ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BIF"));
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
 	package = (union acpi_object *)buffer.pointer;
@@ -177,7 +176,7 @@
 	if (!result)
 		(*bif) = (struct acpi_battery_info *)data.pointer;
 
-	return_VALUE(result);
+	return result;
 }
 
 static int
@@ -193,17 +192,16 @@
 	struct acpi_buffer data = { 0, NULL };
 	union acpi_object *package = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_battery_get_status");
 
 	if (!battery || !bst)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	/* Evalute _BST */
 
 	status = acpi_evaluate_object(battery->handle, "_BST", NULL, &buffer);
 	if (ACPI_FAILURE(status)) {
 		ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BST"));
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
 	package = (union acpi_object *)buffer.pointer;
@@ -238,7 +236,7 @@
 	if (!result)
 		(*bst) = (struct acpi_battery_status *)data.pointer;
 
-	return_VALUE(result);
+	return result;
 }
 
 static int
@@ -248,25 +246,24 @@
 	union acpi_object arg0 = { ACPI_TYPE_INTEGER };
 	struct acpi_object_list arg_list = { 1, &arg0 };
 
-	ACPI_FUNCTION_TRACE("acpi_battery_set_alarm");
 
 	if (!battery)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (!battery->flags.alarm)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	arg0.integer.value = alarm;
 
 	status = acpi_evaluate_object(battery->handle, "_BTP", &arg_list, NULL);
 	if (ACPI_FAILURE(status))
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Alarm set to %d\n", (u32) alarm));
 
 	battery->alarm = alarm;
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_battery_check(struct acpi_battery *battery)
@@ -277,18 +274,17 @@
 	struct acpi_device *device = NULL;
 	struct acpi_battery_info *bif = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_battery_check");
 
 	if (!battery)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	result = acpi_bus_get_device(battery->handle, &device);
 	if (result)
-		return_VALUE(result);
+		return result;
 
 	result = acpi_bus_get_status(device);
 	if (result)
-		return_VALUE(result);
+		return result;
 
 	/* Insertion? */
 
@@ -300,7 +296,7 @@
 
 		result = acpi_battery_get_info(battery, &bif);
 		if (result)
-			return_VALUE(result);
+			return result;
 
 		battery->flags.power_unit = bif->power_unit;
 		battery->trips.warning = bif->design_capacity_warning;
@@ -324,7 +320,7 @@
 
 	battery->flags.present = device->status.battery_present;
 
-	return_VALUE(result);
+	return result;
 }
 
 /* --------------------------------------------------------------------------
@@ -339,7 +335,6 @@
 	struct acpi_battery_info *bif = NULL;
 	char *units = "?";
 
-	ACPI_FUNCTION_TRACE("acpi_battery_read_info");
 
 	if (!battery)
 		goto end;
@@ -409,7 +404,7 @@
       end:
 	kfree(bif);
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_battery_info_open_fs(struct inode *inode, struct file *file)
@@ -424,7 +419,6 @@
 	struct acpi_battery_status *bst = NULL;
 	char *units = "?";
 
-	ACPI_FUNCTION_TRACE("acpi_battery_read_state");
 
 	if (!battery)
 		goto end;
@@ -487,7 +481,7 @@
       end:
 	kfree(bst);
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_battery_state_open_fs(struct inode *inode, struct file *file)
@@ -500,7 +494,6 @@
 	struct acpi_battery *battery = (struct acpi_battery *)seq->private;
 	char *units = "?";
 
-	ACPI_FUNCTION_TRACE("acpi_battery_read_alarm");
 
 	if (!battery)
 		goto end;
@@ -525,7 +518,7 @@
 		seq_printf(seq, "%d %sh\n", (u32) battery->alarm, units);
 
       end:
-	return_VALUE(0);
+	return 0;
 }
 
 static ssize_t
@@ -538,25 +531,24 @@
 	struct seq_file *m = (struct seq_file *)file->private_data;
 	struct acpi_battery *battery = (struct acpi_battery *)m->private;
 
-	ACPI_FUNCTION_TRACE("acpi_battery_write_alarm");
 
 	if (!battery || (count > sizeof(alarm_string) - 1))
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (!battery->flags.present)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	if (copy_from_user(alarm_string, buffer, count))
-		return_VALUE(-EFAULT);
+		return -EFAULT;
 
 	alarm_string[count] = '\0';
 
 	result = acpi_battery_set_alarm(battery,
 					simple_strtoul(alarm_string, NULL, 0));
 	if (result)
-		return_VALUE(result);
+		return result;
 
-	return_VALUE(count);
+	return count;
 }
 
 static int acpi_battery_alarm_open_fs(struct inode *inode, struct file *file)
@@ -593,13 +585,12 @@
 {
 	struct proc_dir_entry *entry = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_battery_add_fs");
 
 	if (!acpi_device_dir(device)) {
 		acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
 						     acpi_battery_dir);
 		if (!acpi_device_dir(device))
-			return_VALUE(-ENODEV);
+			return -ENODEV;
 		acpi_device_dir(device)->owner = THIS_MODULE;
 	}
 
@@ -607,7 +598,7 @@
 	entry = create_proc_entry(ACPI_BATTERY_FILE_INFO,
 				  S_IRUGO, acpi_device_dir(device));
 	if (!entry)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	else {
 		entry->proc_fops = &acpi_battery_info_ops;
 		entry->data = acpi_driver_data(device);
@@ -618,7 +609,7 @@
 	entry = create_proc_entry(ACPI_BATTERY_FILE_STATUS,
 				  S_IRUGO, acpi_device_dir(device));
 	if (!entry)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	else {
 		entry->proc_fops = &acpi_battery_state_ops;
 		entry->data = acpi_driver_data(device);
@@ -630,19 +621,18 @@
 				  S_IFREG | S_IRUGO | S_IWUSR,
 				  acpi_device_dir(device));
 	if (!entry)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	else {
 		entry->proc_fops = &acpi_battery_alarm_ops;
 		entry->data = acpi_driver_data(device);
 		entry->owner = THIS_MODULE;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_battery_remove_fs(struct acpi_device *device)
 {
-	ACPI_FUNCTION_TRACE("acpi_battery_remove_fs");
 
 	if (acpi_device_dir(device)) {
 		remove_proc_entry(ACPI_BATTERY_FILE_ALARM,
@@ -656,7 +646,7 @@
 		acpi_device_dir(device) = NULL;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 /* --------------------------------------------------------------------------
@@ -668,13 +658,12 @@
 	struct acpi_battery *battery = (struct acpi_battery *)data;
 	struct acpi_device *device = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_battery_notify");
 
 	if (!battery)
-		return_VOID;
+		return;
 
 	if (acpi_bus_get_device(handle, &device))
-		return_VOID;
+		return;
 
 	switch (event) {
 	case ACPI_BATTERY_NOTIFY_STATUS:
@@ -688,7 +677,7 @@
 		break;
 	}
 
-	return_VOID;
+	return;
 }
 
 static int acpi_battery_add(struct acpi_device *device)
@@ -697,14 +686,13 @@
 	acpi_status status = 0;
 	struct acpi_battery *battery = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_battery_add");
 
 	if (!device)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	battery = kmalloc(sizeof(struct acpi_battery), GFP_KERNEL);
 	if (!battery)
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 	memset(battery, 0, sizeof(struct acpi_battery));
 
 	battery->handle = device->handle;
@@ -738,7 +726,7 @@
 		kfree(battery);
 	}
 
-	return_VALUE(result);
+	return result;
 }
 
 static int acpi_battery_remove(struct acpi_device *device, int type)
@@ -746,10 +734,9 @@
 	acpi_status status = 0;
 	struct acpi_battery *battery = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_battery_remove");
 
 	if (!device || !acpi_driver_data(device))
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	battery = (struct acpi_battery *)acpi_driver_data(device);
 
@@ -761,38 +748,36 @@
 
 	kfree(battery);
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int __init acpi_battery_init(void)
 {
 	int result = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_battery_init");
 
 	acpi_battery_dir = proc_mkdir(ACPI_BATTERY_CLASS, acpi_root_dir);
 	if (!acpi_battery_dir)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	acpi_battery_dir->owner = THIS_MODULE;
 
 	result = acpi_bus_register_driver(&acpi_battery_driver);
 	if (result < 0) {
 		remove_proc_entry(ACPI_BATTERY_CLASS, acpi_root_dir);
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 static void __exit acpi_battery_exit(void)
 {
-	ACPI_FUNCTION_TRACE("acpi_battery_exit");
 
 	acpi_bus_unregister_driver(&acpi_battery_driver);
 
 	remove_proc_entry(ACPI_BATTERY_CLASS, acpi_root_dir);
 
-	return_VOID;
+	return;
 }
 
 module_init(acpi_battery_init);
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 6c62862..dec044c 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -60,20 +60,19 @@
 {
 	acpi_status status = AE_OK;
 
-	ACPI_FUNCTION_TRACE("acpi_bus_get_device");
 
 	if (!device)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	/* TBD: Support fixed-feature devices */
 
 	status = acpi_get_data(handle, acpi_bus_data_handler, (void **)device);
 	if (ACPI_FAILURE(status) || !*device) {
 		ACPI_EXCEPTION((AE_INFO, status, "No context for object [%p]", handle));
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 EXPORT_SYMBOL(acpi_bus_get_device);
@@ -83,10 +82,9 @@
 	acpi_status status = AE_OK;
 	unsigned long sta = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_bus_get_status");
 
 	if (!device)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	/*
 	 * Evaluate _STA if present.
@@ -95,7 +93,7 @@
 		status =
 		    acpi_evaluate_integer(device->handle, "_STA", NULL, &sta);
 		if (ACPI_FAILURE(status))
-			return_VALUE(-ENODEV);
+			return -ENODEV;
 		STRUCT_TO_INT(device->status) = (int)sta;
 	}
 
@@ -119,7 +117,7 @@
 			  device->pnp.bus_id,
 			  (u32) STRUCT_TO_INT(device->status)));
 
-	return_VALUE(0);
+	return 0;
 }
 
 EXPORT_SYMBOL(acpi_bus_get_status);
@@ -135,11 +133,10 @@
 	struct acpi_device *device = NULL;
 	unsigned long psc = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_bus_get_power");
 
 	result = acpi_bus_get_device(handle, &device);
 	if (result)
-		return_VALUE(result);
+		return result;
 
 	*state = ACPI_STATE_UNKNOWN;
 
@@ -158,12 +155,12 @@
 			status = acpi_evaluate_integer(device->handle, "_PSC",
 						       NULL, &psc);
 			if (ACPI_FAILURE(status))
-				return_VALUE(-ENODEV);
+				return -ENODEV;
 			device->power.state = (int)psc;
 		} else if (device->power.flags.power_resources) {
 			result = acpi_power_get_inferred_state(device);
 			if (result)
-				return_VALUE(result);
+				return result;
 		}
 
 		*state = device->power.state;
@@ -172,7 +169,7 @@
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] power state is D%d\n",
 			  device->pnp.bus_id, device->power.state));
 
-	return_VALUE(0);
+	return 0;
 }
 
 EXPORT_SYMBOL(acpi_bus_get_power);
@@ -184,21 +181,20 @@
 	struct acpi_device *device = NULL;
 	char object_name[5] = { '_', 'P', 'S', '0' + state, '\0' };
 
-	ACPI_FUNCTION_TRACE("acpi_bus_set_power");
 
 	result = acpi_bus_get_device(handle, &device);
 	if (result)
-		return_VALUE(result);
+		return result;
 
 	if ((state < ACPI_STATE_D0) || (state > ACPI_STATE_D3))
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	/* Make sure this is a valid target state */
 
 	if (!device->flags.power_manageable) {
 		printk(KERN_DEBUG "Device `[%s]is not power manageable",
 				device->kobj.name);
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 	/*
 	 * Get device's current power state if it's unknown
@@ -210,18 +206,18 @@
 		if (state == device->power.state) {
 			ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n",
 					  state));
-			return_VALUE(0);
+			return 0;
 		}
 	}
 	if (!device->power.states[state].flags.valid) {
 		printk(KERN_WARNING PREFIX "Device does not support D%d\n", state);
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 	if (device->parent && (state < device->parent->power.state)) {
 		printk(KERN_WARNING PREFIX
 			      "Cannot set device to a higher-powered"
 			      " state than parent\n");
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
 	/*
@@ -271,7 +267,7 @@
 				  "Device [%s] transitioned to D%d\n",
 				  device->pnp.bus_id, state));
 
-	return_VALUE(result);
+	return result;
 }
 
 EXPORT_SYMBOL(acpi_bus_set_power);
@@ -292,18 +288,17 @@
 	struct acpi_bus_event *event = NULL;
 	unsigned long flags = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_bus_generate_event");
 
 	if (!device)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	/* drop event on the floor if no one's listening */
 	if (!event_is_open)
-		return_VALUE(0);
+		return 0;
 
 	event = kmalloc(sizeof(struct acpi_bus_event), GFP_ATOMIC);
 	if (!event)
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 
 	strcpy(event->device_class, device->pnp.device_class);
 	strcpy(event->bus_id, device->pnp.bus_id);
@@ -316,7 +311,7 @@
 
 	wake_up_interruptible(&acpi_bus_event_queue);
 
-	return_VALUE(0);
+	return 0;
 }
 
 EXPORT_SYMBOL(acpi_bus_generate_event);
@@ -328,10 +323,9 @@
 
 	DECLARE_WAITQUEUE(wait, current);
 
-	ACPI_FUNCTION_TRACE("acpi_bus_receive_event");
 
 	if (!event)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (list_empty(&acpi_bus_event_list)) {
 
@@ -345,7 +339,7 @@
 		set_current_state(TASK_RUNNING);
 
 		if (signal_pending(current))
-			return_VALUE(-ERESTARTSYS);
+			return -ERESTARTSYS;
 	}
 
 	spin_lock_irqsave(&acpi_bus_event_lock, flags);
@@ -356,13 +350,13 @@
 	spin_unlock_irqrestore(&acpi_bus_event_lock, flags);
 
 	if (!entry)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	memcpy(event, entry, sizeof(struct acpi_bus_event));
 
 	kfree(entry);
 
-	return_VALUE(0);
+	return 0;
 }
 
 EXPORT_SYMBOL(acpi_bus_receive_event);
@@ -377,10 +371,9 @@
 	acpi_status status = 0;
 	struct acpi_device_status old_status;
 
-	ACPI_FUNCTION_TRACE("acpi_bus_check_device");
 
 	if (!device)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (status_changed)
 		*status_changed = 0;
@@ -397,15 +390,15 @@
 			if (status_changed)
 				*status_changed = 1;
 		}
-		return_VALUE(0);
+		return 0;
 	}
 
 	status = acpi_bus_get_status(device);
 	if (ACPI_FAILURE(status))
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	if (STRUCT_TO_INT(old_status) == STRUCT_TO_INT(device->status))
-		return_VALUE(0);
+		return 0;
 
 	if (status_changed)
 		*status_changed = 1;
@@ -421,7 +414,7 @@
 		/* TBD: Handle device removal */
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_bus_check_scope(struct acpi_device *device)
@@ -429,25 +422,24 @@
 	int result = 0;
 	int status_changed = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_bus_check_scope");
 
 	if (!device)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	/* Status Change? */
 	result = acpi_bus_check_device(device, &status_changed);
 	if (result)
-		return_VALUE(result);
+		return result;
 
 	if (!status_changed)
-		return_VALUE(0);
+		return 0;
 
 	/*
 	 * TBD: Enumerate child devices within this device's scope and
 	 *       run acpi_bus_check_device()'s on them.
 	 */
 
-	return_VALUE(0);
+	return 0;
 }
 
 /**
@@ -460,10 +452,9 @@
 	int result = 0;
 	struct acpi_device *device = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_bus_notify");
 
 	if (acpi_bus_get_device(handle, &device))
-		return_VOID;
+		return;
 
 	switch (type) {
 
@@ -538,7 +529,7 @@
 		break;
 	}
 
-	return_VOID;
+	return;
 }
 
 /* --------------------------------------------------------------------------
@@ -552,7 +543,6 @@
 	struct acpi_object_list arg_list = { 1, &arg };
 	char *message = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_bus_init_irq");
 
 	/* 
 	 * Let the system know what interrupt model we are using by
@@ -571,7 +561,7 @@
 		break;
 	default:
 		printk(KERN_WARNING PREFIX "Unknown interrupt routing model\n");
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
 	printk(KERN_INFO PREFIX "Using %s for interrupt routing\n", message);
@@ -581,10 +571,10 @@
 	status = acpi_evaluate_object(NULL, "\\_PIC", &arg_list, NULL);
 	if (ACPI_FAILURE(status) && (status != AE_NOT_FOUND)) {
 		ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PIC"));
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 void __init acpi_early_init(void)
@@ -592,10 +582,9 @@
 	acpi_status status = AE_OK;
 	struct acpi_buffer buffer = { sizeof(acpi_fadt), &acpi_fadt };
 
-	ACPI_FUNCTION_TRACE("acpi_early_init");
 
 	if (acpi_disabled)
-		return_VOID;
+		return;
 
 	printk(KERN_INFO PREFIX "Core revision %08x\n", ACPI_CA_VERSION);
 
@@ -655,11 +644,11 @@
 		goto error0;
 	}
 
-	return_VOID;
+	return;
 
       error0:
 	disable_acpi();
-	return_VOID;
+	return;
 }
 
 static int __init acpi_bus_init(void)
@@ -668,7 +657,6 @@
 	acpi_status status = AE_OK;
 	extern acpi_status acpi_os_initialize1(void);
 
-	ACPI_FUNCTION_TRACE("acpi_bus_init");
 
 	status = acpi_os_initialize1();
 
@@ -730,12 +718,12 @@
 	 */
 	acpi_root_dir = proc_mkdir(ACPI_BUS_FILE_ROOT, NULL);
 
-	return_VALUE(0);
+	return 0;
 
 	/* Mimic structured exception handling */
       error1:
 	acpi_terminate();
-	return_VALUE(-ENODEV);
+	return -ENODEV;
 }
 
 decl_subsys(acpi, NULL, NULL);
@@ -744,11 +732,10 @@
 {
 	int result = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_init");
 
 	if (acpi_disabled) {
 		printk(KERN_INFO PREFIX "Interpreter disabled.\n");
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
 	firmware_register(&acpi_subsys);
@@ -769,7 +756,7 @@
 	} else
 		disable_acpi();
 
-	return_VALUE(result);
+	return result;
 }
 
 subsys_initcall(acpi_init);
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index 63db284..0259463 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -112,15 +112,14 @@
 {
 	struct acpi_button *button = (struct acpi_button *)seq->private;
 
-	ACPI_FUNCTION_TRACE("acpi_button_info_seq_show");
 
 	if (!button || !button->device)
-		return_VALUE(0);
+		return 0;
 
 	seq_printf(seq, "type:                    %s\n",
 		   acpi_device_name(button->device));
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_button_info_open_fs(struct inode *inode, struct file *file)
@@ -134,10 +133,9 @@
 	acpi_status status;
 	unsigned long state;
 
-	ACPI_FUNCTION_TRACE("acpi_button_state_seq_show");
 
 	if (!button || !button->device)
-		return_VALUE(0);
+		return 0;
 
 	status = acpi_evaluate_integer(button->handle, "_LID", NULL, &state);
 	if (ACPI_FAILURE(status)) {
@@ -147,7 +145,7 @@
 			   (state ? "open" : "closed"));
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_button_state_open_fs(struct inode *inode, struct file *file)
@@ -164,10 +162,9 @@
 	struct proc_dir_entry *entry = NULL;
 	struct acpi_button *button = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_button_add_fs");
 
 	if (!device || !acpi_driver_data(device))
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	button = acpi_driver_data(device);
 
@@ -195,19 +192,19 @@
 	}
 
 	if (!entry)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	entry->owner = THIS_MODULE;
 
 	acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), entry);
 	if (!acpi_device_dir(device))
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	acpi_device_dir(device)->owner = THIS_MODULE;
 
 	/* 'info' [R] */
 	entry = create_proc_entry(ACPI_BUTTON_FILE_INFO,
 				  S_IRUGO, acpi_device_dir(device));
 	if (!entry)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	else {
 		entry->proc_fops = &acpi_button_info_fops;
 		entry->data = acpi_driver_data(device);
@@ -227,14 +224,13 @@
 		}
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_button_remove_fs(struct acpi_device *device)
 {
 	struct acpi_button *button = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_button_remove_fs");
 
 	button = acpi_driver_data(device);
 	if (acpi_device_dir(device)) {
@@ -249,7 +245,7 @@
 		acpi_device_dir(device) = NULL;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 /* --------------------------------------------------------------------------
@@ -260,10 +256,9 @@
 {
 	struct acpi_button *button = (struct acpi_button *)data;
 
-	ACPI_FUNCTION_TRACE("acpi_button_notify");
 
 	if (!button || !button->device)
-		return_VOID;
+		return;
 
 	switch (event) {
 	case ACPI_BUTTON_NOTIFY_STATUS:
@@ -276,21 +271,20 @@
 		break;
 	}
 
-	return_VOID;
+	return;
 }
 
 static acpi_status acpi_button_notify_fixed(void *data)
 {
 	struct acpi_button *button = (struct acpi_button *)data;
 
-	ACPI_FUNCTION_TRACE("acpi_button_notify_fixed");
 
 	if (!button)
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
+		return AE_BAD_PARAMETER;
 
 	acpi_button_notify(button->handle, ACPI_BUTTON_NOTIFY_STATUS, button);
 
-	return_ACPI_STATUS(AE_OK);
+	return AE_OK;
 }
 
 static int acpi_button_add(struct acpi_device *device)
@@ -299,14 +293,13 @@
 	acpi_status status = AE_OK;
 	struct acpi_button *button = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_button_add");
 
 	if (!device)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	button = kmalloc(sizeof(struct acpi_button), GFP_KERNEL);
 	if (!button)
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 	memset(button, 0, sizeof(struct acpi_button));
 
 	button->device = device;
@@ -400,7 +393,7 @@
 		kfree(button);
 	}
 
-	return_VALUE(result);
+	return result;
 }
 
 static int acpi_button_remove(struct acpi_device *device, int type)
@@ -408,10 +401,9 @@
 	acpi_status status = 0;
 	struct acpi_button *button = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_button_remove");
 
 	if (!device || !acpi_driver_data(device))
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	button = acpi_driver_data(device);
 
@@ -438,31 +430,29 @@
 
 	kfree(button);
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int __init acpi_button_init(void)
 {
 	int result = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_button_init");
 
 	acpi_button_dir = proc_mkdir(ACPI_BUTTON_CLASS, acpi_root_dir);
 	if (!acpi_button_dir)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	acpi_button_dir->owner = THIS_MODULE;
 	result = acpi_bus_register_driver(&acpi_button_driver);
 	if (result < 0) {
 		remove_proc_entry(ACPI_BUTTON_CLASS, acpi_root_dir);
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 static void __exit acpi_button_exit(void)
 {
-	ACPI_FUNCTION_TRACE("acpi_button_exit");
 
 	acpi_bus_unregister_driver(&acpi_button_driver);
 
@@ -474,7 +464,7 @@
 		remove_proc_entry(ACPI_BUTTON_SUBCLASS_LID, acpi_button_dir);
 	remove_proc_entry(ACPI_BUTTON_CLASS, acpi_root_dir);
 
-	return_VOID;
+	return;
 }
 
 module_init(acpi_button_init);
diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c
index e2fcef4..7f7e41d 100644
--- a/drivers/acpi/container.c
+++ b/drivers/acpi/container.c
@@ -73,17 +73,16 @@
 	acpi_status status;
 	unsigned long sta;
 
-	ACPI_FUNCTION_TRACE("is_device_present");
 
 	status = acpi_get_handle(handle, "_STA", &temp);
 	if (ACPI_FAILURE(status))
-		return_VALUE(1);	/* _STA not found, assmue device present */
+		return 1;	/* _STA not found, assmue device present */
 
 	status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);
 	if (ACPI_FAILURE(status))
-		return_VALUE(0);	/* Firmware error */
+		return 0;	/* Firmware error */
 
-	return_VALUE((sta & ACPI_STA_PRESENT) == ACPI_STA_PRESENT);
+	return ((sta & ACPI_STA_PRESENT) == ACPI_STA_PRESENT);
 }
 
 /*******************************************************************/
@@ -91,16 +90,15 @@
 {
 	struct acpi_container *container;
 
-	ACPI_FUNCTION_TRACE("acpi_container_add");
 
 	if (!device) {
 		printk(KERN_ERR PREFIX "device is NULL\n");
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 	}
 
 	container = kmalloc(sizeof(struct acpi_container), GFP_KERNEL);
 	if (!container)
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 
 	memset(container, 0, sizeof(struct acpi_container));
 	container->handle = device->handle;
@@ -111,7 +109,7 @@
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device <%s> bid <%s>\n",
 			  acpi_device_name(device), acpi_device_bid(device)));
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_container_remove(struct acpi_device *device, int type)
@@ -130,23 +128,22 @@
 	struct acpi_device *pdev;
 	int result;
 
-	ACPI_FUNCTION_TRACE("container_device_add");
 
 	if (acpi_get_parent(handle, &phandle)) {
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
 	if (acpi_bus_get_device(phandle, &pdev)) {
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
 	if (acpi_bus_add(device, pdev, handle, ACPI_BUS_TYPE_DEVICE)) {
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
 	result = acpi_bus_start(*device);
 
-	return_VALUE(result);
+	return result;
 }
 
 static void container_notify_cb(acpi_handle handle, u32 type, void *context)
@@ -156,7 +153,6 @@
 	int present;
 	acpi_status status;
 
-	ACPI_FUNCTION_TRACE("container_notify_cb");
 
 	present = is_device_present(handle);
 
@@ -192,7 +188,7 @@
 	default:
 		break;
 	}
-	return_VOID;
+	return;
 }
 
 static acpi_status
@@ -205,11 +201,10 @@
 	acpi_status status;
 	int *action = context;
 
-	ACPI_FUNCTION_TRACE("container_walk_namespace_cb");
 
 	status = acpi_get_object_info(handle, &buffer);
 	if (ACPI_FAILURE(status) || !buffer.pointer) {
-		return_ACPI_STATUS(AE_OK);
+		return AE_OK;
 	}
 
 	info = buffer.pointer;
@@ -243,7 +238,7 @@
       end:
 	acpi_os_free(buffer.pointer);
 
-	return_ACPI_STATUS(AE_OK);
+	return AE_OK;
 }
 
 static int __init acpi_container_init(void)
@@ -269,7 +264,6 @@
 {
 	int action = UNINSTALL_NOTIFY_HANDLER;
 
-	ACPI_FUNCTION_TRACE("acpi_container_exit");
 
 	acpi_walk_namespace(ACPI_TYPE_DEVICE,
 			    ACPI_ROOT_OBJECT,
@@ -278,7 +272,7 @@
 
 	acpi_bus_unregister_driver(&acpi_container_driver);
 
-	return_VOID;
+	return;
 }
 
 module_init(acpi_container_init);
diff --git a/drivers/acpi/debug.c b/drivers/acpi/debug.c
index ec7bcee..35c6af8 100644
--- a/drivers/acpi/debug.c
+++ b/drivers/acpi/debug.c
@@ -155,13 +155,12 @@
 {
 	char debug_string[12] = { '\0' };
 
-	ACPI_FUNCTION_TRACE("acpi_system_write_debug");
 
 	if (count > sizeof(debug_string) - 1)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (copy_from_user(debug_string, buffer, count))
-		return_VALUE(-EFAULT);
+		return -EFAULT;
 
 	debug_string[count] = '\0';
 
@@ -173,10 +172,10 @@
 		acpi_dbg_level = simple_strtoul(debug_string, NULL, 0);
 		break;
 	default:
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 	}
 
-	return_VALUE(count);
+	return count;
 }
 
 static int __init acpi_debug_init(void)
@@ -185,10 +184,9 @@
 	int error = 0;
 	char *name;
 
-	ACPI_FUNCTION_TRACE("acpi_debug_init");
 
 	if (acpi_disabled)
-		return_VALUE(0);
+		return 0;
 
 	/* 'debug_layer' [R/W] */
 	name = ACPI_SYSTEM_FILE_DEBUG_LAYER;
@@ -213,7 +211,7 @@
 		goto Error;
 
       Done:
-	return_VALUE(error);
+	return error;
 
       Error:
 	remove_proc_entry(ACPI_SYSTEM_FILE_DEBUG_LEVEL, acpi_root_dir);
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 0bba878..874f912 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -207,7 +207,6 @@
 {
 	int result = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_ec_wait");
 
 	ec->intr.expect_event = event;
 	smp_mb();
@@ -216,7 +215,7 @@
 	case ACPI_EC_EVENT_IBE:
 		if (~acpi_ec_read_status(ec) & event) {
 			ec->intr.expect_event = 0;
-			return_VALUE(0);
+			return 0;
 		}
 		break;
 	default:
@@ -238,16 +237,16 @@
 	switch (event) {
 	case ACPI_EC_EVENT_OBF:
 		if (acpi_ec_read_status(ec) & ACPI_EC_FLAG_OBF)
-			return_VALUE(0);
+			return 0;
 		break;
 
 	case ACPI_EC_EVENT_IBE:
 		if (~acpi_ec_read_status(ec) & ACPI_EC_FLAG_IBF)
-			return_VALUE(0);
+			return 0;
 		break;
 	}
 
-	return_VALUE(-ETIME);
+	return -ETIME;
 }
 
 #ifdef ACPI_FUTURE_USAGE
@@ -260,7 +259,6 @@
 	u32 tmp = 0;
 	int status = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_ec_enter_burst_mode");
 
 	status = acpi_ec_read_status(ec);
 	if (status != -EINVAL && !(status & ACPI_EC_FLAG_BURST)) {
@@ -272,22 +270,21 @@
 		status = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF);
 		acpi_hw_low_level_read(8, &tmp, &ec->common.data_addr);
 		if (tmp != 0x90) {	/* Burst ACK byte */
-			return_VALUE(-EINVAL);
+			return -EINVAL;
 		}
 	}
 
 	atomic_set(&ec->intr.leaving_burst, 0);
-	return_VALUE(0);
+	return 0;
       end:
 	ACPI_EXCEPTION ((AE_INFO, status, "EC wait, burst mode");
-	return_VALUE(-1);
+	return -1;
 }
 
 int acpi_ec_leave_burst_mode(union acpi_ec *ec)
 {
 	int status = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_ec_leave_burst_mode");
 
 	status = acpi_ec_read_status(ec);
 	if (status != -EINVAL && (status & ACPI_EC_FLAG_BURST)){
@@ -298,10 +295,10 @@
 		acpi_ec_wait(ec, ACPI_EC_FLAG_IBF);
 	} 
 	atomic_set(&ec->intr.leaving_burst, 1);
-	return_VALUE(0);
+	return 0;
 end:
 	ACPI_EXCEPTION((AE_INFO, status, "EC leave burst mode");
-	return_VALUE(-1);
+	return -1;
 }
 #endif /* ACPI_FUTURE_USAGE */
 
@@ -325,17 +322,16 @@
 	int result = 0;
 	u32 glk = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_ec_read");
 
 	if (!ec || !data)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	*data = 0;
 
 	if (ec->common.global_lock) {
 		status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
 		if (ACPI_FAILURE(status))
-			return_VALUE(-ENODEV);
+			return -ENODEV;
 	}
 
 	if (down_interruptible(&ec->poll.sem)) {
@@ -365,7 +361,7 @@
 	if (ec->common.global_lock)
 		acpi_release_global_lock(glk);
 
-	return_VALUE(result);
+	return result;
 }
 
 static int acpi_ec_poll_write(union acpi_ec *ec, u8 address, u8 data)
@@ -374,15 +370,14 @@
 	acpi_status status = AE_OK;
 	u32 glk = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_ec_write");
 
 	if (!ec)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (ec->common.global_lock) {
 		status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
 		if (ACPI_FAILURE(status))
-			return_VALUE(-ENODEV);
+			return -ENODEV;
 	}
 
 	if (down_interruptible(&ec->poll.sem)) {
@@ -415,7 +410,7 @@
 	if (ec->common.global_lock)
 		acpi_release_global_lock(glk);
 
-	return_VALUE(result);
+	return result;
 }
 
 static int acpi_ec_intr_read(union acpi_ec *ec, u8 address, u32 * data)
@@ -423,17 +418,16 @@
 	int status = 0;
 	u32 glk;
 
-	ACPI_FUNCTION_TRACE("acpi_ec_read");
 
 	if (!ec || !data)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	*data = 0;
 
 	if (ec->common.global_lock) {
 		status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
 		if (ACPI_FAILURE(status))
-			return_VALUE(-ENODEV);
+			return -ENODEV;
 	}
 
 	WARN_ON(in_interrupt());
@@ -467,7 +461,7 @@
 	if (ec->common.global_lock)
 		acpi_release_global_lock(glk);
 
-	return_VALUE(status);
+	return status;
 }
 
 static int acpi_ec_intr_write(union acpi_ec *ec, u8 address, u8 data)
@@ -475,15 +469,14 @@
 	int status = 0;
 	u32 glk;
 
-	ACPI_FUNCTION_TRACE("acpi_ec_write");
 
 	if (!ec)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (ec->common.global_lock) {
 		status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
 		if (ACPI_FAILURE(status))
-			return_VALUE(-ENODEV);
+			return -ENODEV;
 	}
 
 	WARN_ON(in_interrupt());
@@ -516,7 +509,7 @@
 	if (ec->common.global_lock)
 		acpi_release_global_lock(glk);
 
-	return_VALUE(status);
+	return status;
 }
 
 /*
@@ -574,17 +567,16 @@
 	acpi_status status = AE_OK;
 	u32 glk = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_ec_query");
 
 	if (!ec || !data)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	*data = 0;
 
 	if (ec->common.global_lock) {
 		status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
 		if (ACPI_FAILURE(status))
-			return_VALUE(-ENODEV);
+			return -ENODEV;
 	}
 
 	/*
@@ -613,23 +605,22 @@
 	if (ec->common.global_lock)
 		acpi_release_global_lock(glk);
 
-	return_VALUE(result);
+	return result;
 }
 static int acpi_ec_intr_query(union acpi_ec *ec, u32 * data)
 {
 	int status = 0;
 	u32 glk;
 
-	ACPI_FUNCTION_TRACE("acpi_ec_query");
 
 	if (!ec || !data)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 	*data = 0;
 
 	if (ec->common.global_lock) {
 		status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
 		if (ACPI_FAILURE(status))
-			return_VALUE(-ENODEV);
+			return -ENODEV;
 	}
 
 	down(&ec->intr.sem);
@@ -662,7 +653,7 @@
 	if (ec->common.global_lock)
 		acpi_release_global_lock(glk);
 
-	return_VALUE(status);
+	return status;
 }
 
 /* --------------------------------------------------------------------------
@@ -691,13 +682,12 @@
 		'8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
 	};
 
-	ACPI_FUNCTION_TRACE("acpi_ec_gpe_query");
 
 	if (!ec_cxt)
 		goto end;
 
 	if (down_interruptible (&ec->poll.sem)) {
-		return_VOID;
+		return;
 	}
 	acpi_hw_low_level_read(8, &value, &ec->common.command_addr);
 	up(&ec->poll.sem);
@@ -734,7 +724,6 @@
 		'8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
 	};
 
-	ACPI_FUNCTION_TRACE("acpi_ec_gpe_query");
 
 	if (acpi_ec_read_status(ec) & ACPI_EC_FLAG_SCI)
 		result = acpi_ec_query(ec, &value);
@@ -846,15 +835,14 @@
 	acpi_integer f_v = 0;
 	int i = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_ec_space_handler");
 
 	if ((address > 0xFF) || !value || !handler_context)
-		return_VALUE(AE_BAD_PARAMETER);
+		return AE_BAD_PARAMETER;
 
 	if (bit_width != 8 && acpi_strict) {
 		printk(KERN_WARNING PREFIX
 		       "acpi_ec_space_handler: bit_width should be 8\n");
-		return_VALUE(AE_BAD_PARAMETER);
+		return AE_BAD_PARAMETER;
 	}
 
 	ec = (union acpi_ec *)handler_context;
@@ -893,16 +881,16 @@
       out:
 	switch (result) {
 	case -EINVAL:
-		return_VALUE(AE_BAD_PARAMETER);
+		return AE_BAD_PARAMETER;
 		break;
 	case -ENODEV:
-		return_VALUE(AE_NOT_FOUND);
+		return AE_NOT_FOUND;
 		break;
 	case -ETIME:
-		return_VALUE(AE_TIME);
+		return AE_TIME;
 		break;
 	default:
-		return_VALUE(AE_OK);
+		return AE_OK;
 	}
 }
 
@@ -916,7 +904,6 @@
 {
 	union acpi_ec *ec = (union acpi_ec *)seq->private;
 
-	ACPI_FUNCTION_TRACE("acpi_ec_read_info");
 
 	if (!ec)
 		goto end;
@@ -931,7 +918,7 @@
 	acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
 
       end:
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_ec_info_open_fs(struct inode *inode, struct file *file)
@@ -951,31 +938,29 @@
 {
 	struct proc_dir_entry *entry = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_ec_add_fs");
 
 	if (!acpi_device_dir(device)) {
 		acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
 						     acpi_ec_dir);
 		if (!acpi_device_dir(device))
-			return_VALUE(-ENODEV);
+			return -ENODEV;
 	}
 
 	entry = create_proc_entry(ACPI_EC_FILE_INFO, S_IRUGO,
 				  acpi_device_dir(device));
 	if (!entry)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	else {
 		entry->proc_fops = &acpi_ec_info_ops;
 		entry->data = acpi_driver_data(device);
 		entry->owner = THIS_MODULE;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_ec_remove_fs(struct acpi_device *device)
 {
-	ACPI_FUNCTION_TRACE("acpi_ec_remove_fs");
 
 	if (acpi_device_dir(device)) {
 		remove_proc_entry(ACPI_EC_FILE_INFO, acpi_device_dir(device));
@@ -983,7 +968,7 @@
 		acpi_device_dir(device) = NULL;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 /* --------------------------------------------------------------------------
@@ -996,14 +981,13 @@
 	acpi_status status = AE_OK;
 	union acpi_ec *ec = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_ec_add");
 
 	if (!device)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	ec = kmalloc(sizeof(union acpi_ec), GFP_KERNEL);
 	if (!ec)
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 	memset(ec, 0, sizeof(union acpi_ec));
 
 	ec->common.handle = device->handle;
@@ -1056,7 +1040,7 @@
 	if (result)
 		kfree(ec);
 
-	return_VALUE(result);
+	return result;
 }
 static int acpi_ec_intr_add(struct acpi_device *device)
 {
@@ -1064,14 +1048,13 @@
 	acpi_status status = AE_OK;
 	union acpi_ec *ec = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_ec_add");
 
 	if (!device)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	ec = kmalloc(sizeof(union acpi_ec), GFP_KERNEL);
 	if (!ec)
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 	memset(ec, 0, sizeof(union acpi_ec));
 
 	ec->common.handle = device->handle;
@@ -1127,17 +1110,16 @@
 	if (result)
 		kfree(ec);
 
-	return_VALUE(result);
+	return result;
 }
 
 static int acpi_ec_remove(struct acpi_device *device, int type)
 {
 	union acpi_ec *ec = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_ec_remove");
 
 	if (!device)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	ec = acpi_driver_data(device);
 
@@ -1145,7 +1127,7 @@
 
 	kfree(ec);
 
-	return_VALUE(0);
+	return 0;
 }
 
 static acpi_status
@@ -1184,15 +1166,14 @@
 	acpi_status status = AE_OK;
 	union acpi_ec *ec = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_ec_start");
 
 	if (!device)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	ec = acpi_driver_data(device);
 
 	if (!ec)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	/*
 	 * Get I/O port addresses. Convert to GAS format.
@@ -1202,7 +1183,7 @@
 	if (ACPI_FAILURE(status)
 	    || ec->common.command_addr.register_bit_width == 0) {
 		printk(KERN_ERR PREFIX "Error getting I/O port addresses\n");
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
 	ec->common.status_addr = ec->common.command_addr;
@@ -1219,7 +1200,7 @@
 					  ACPI_GPE_EDGE_TRIGGERED,
 					  &acpi_ec_gpe_handler, ec);
 	if (ACPI_FAILURE(status)) {
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 	acpi_set_gpe_type(NULL, ec->common.gpe_bit, ACPI_GPE_TYPE_RUNTIME);
 	acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
@@ -1231,10 +1212,10 @@
 	if (ACPI_FAILURE(status)) {
 		acpi_remove_gpe_handler(NULL, ec->common.gpe_bit,
 					&acpi_ec_gpe_handler);
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
-	return_VALUE(AE_OK);
+	return AE_OK;
 }
 
 static int acpi_ec_stop(struct acpi_device *device, int type)
@@ -1242,10 +1223,9 @@
 	acpi_status status = AE_OK;
 	union acpi_ec *ec = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_ec_stop");
 
 	if (!device)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	ec = acpi_driver_data(device);
 
@@ -1253,15 +1233,15 @@
 						   ACPI_ADR_SPACE_EC,
 						   &acpi_ec_space_handler);
 	if (ACPI_FAILURE(status))
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	status =
 	    acpi_remove_gpe_handler(NULL, ec->common.gpe_bit,
 				    &acpi_ec_gpe_handler);
 	if (ACPI_FAILURE(status))
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
-	return_VALUE(0);
+	return 0;
 }
 
 static acpi_status __init
@@ -1531,23 +1511,22 @@
 {
 	int result = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_ec_init");
 
 	if (acpi_disabled)
-		return_VALUE(0);
+		return 0;
 
 	acpi_ec_dir = proc_mkdir(ACPI_EC_CLASS, acpi_root_dir);
 	if (!acpi_ec_dir)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	/* Now register the driver for the EC */
 	result = acpi_bus_register_driver(&acpi_ec_driver);
 	if (result < 0) {
 		remove_proc_entry(ACPI_EC_CLASS, acpi_root_dir);
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
-	return_VALUE(result);
+	return result;
 }
 
 subsys_initcall(acpi_ec_init);
@@ -1556,13 +1535,12 @@
 #if 0
 static void __exit acpi_ec_exit(void)
 {
-	ACPI_FUNCTION_TRACE("acpi_ec_exit");
 
 	acpi_bus_unregister_driver(&acpi_ec_driver);
 
 	remove_proc_entry(ACPI_EC_CLASS, acpi_root_dir);
 
-	return_VOID;
+	return;
 }
 #endif				/* 0 */
 
diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c
index dab09d3..a901b23 100644
--- a/drivers/acpi/event.c
+++ b/drivers/acpi/event.c
@@ -48,18 +48,17 @@
 	static int chars_remaining = 0;
 	static char *ptr;
 
-	ACPI_FUNCTION_TRACE("acpi_system_read_event");
 
 	if (!chars_remaining) {
 		memset(&event, 0, sizeof(struct acpi_bus_event));
 
 		if ((file->f_flags & O_NONBLOCK)
 		    && (list_empty(&acpi_bus_event_list)))
-			return_VALUE(-EAGAIN);
+			return -EAGAIN;
 
 		result = acpi_bus_receive_event(&event);
 		if (result)
-			return_VALUE(result);
+			return result;
 
 		chars_remaining = sprintf(str, "%s %s %08x %08x\n",
 					  event.device_class ? event.
@@ -75,13 +74,13 @@
 	}
 
 	if (copy_to_user(buffer, ptr, count))
-		return_VALUE(-EFAULT);
+		return -EFAULT;
 
 	*ppos += count;
 	chars_remaining -= count;
 	ptr += count;
 
-	return_VALUE(count);
+	return count;
 }
 
 static int acpi_system_close_event(struct inode *inode, struct file *file)
@@ -112,10 +111,9 @@
 	struct proc_dir_entry *entry;
 	int error = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_event_init");
 
 	if (acpi_disabled)
-		return_VALUE(0);
+		return 0;
 
 	/* 'event' [R] */
 	entry = create_proc_entry("event", S_IRUSR, acpi_root_dir);
@@ -124,7 +122,7 @@
 	else {
 		error = -ENODEV;
 	}
-	return_VALUE(error);
+	return error;
 }
 
 subsys_initcall(acpi_event_init);
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index 65bdcde..38acc69 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -78,7 +78,6 @@
 	struct acpi_fan *fan = seq->private;
 	int state = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_fan_read_state");
 
 	if (fan) {
 		if (acpi_bus_get_power(fan->handle, &state))
@@ -87,7 +86,7 @@
 			seq_printf(seq, "status:                  %s\n",
 				   !state ? "on" : "off");
 	}
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_fan_state_open_fs(struct inode *inode, struct file *file)
@@ -104,22 +103,21 @@
 	struct acpi_fan *fan = (struct acpi_fan *)m->private;
 	char state_string[12] = { '\0' };
 
-	ACPI_FUNCTION_TRACE("acpi_fan_write_state");
 
 	if (!fan || (count > sizeof(state_string) - 1))
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (copy_from_user(state_string, buffer, count))
-		return_VALUE(-EFAULT);
+		return -EFAULT;
 
 	state_string[count] = '\0';
 
 	result = acpi_bus_set_power(fan->handle,
 				    simple_strtoul(state_string, NULL, 0));
 	if (result)
-		return_VALUE(result);
+		return result;
 
-	return_VALUE(count);
+	return count;
 }
 
 static struct file_operations acpi_fan_state_ops = {
@@ -135,16 +133,15 @@
 {
 	struct proc_dir_entry *entry = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_fan_add_fs");
 
 	if (!device)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (!acpi_device_dir(device)) {
 		acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
 						     acpi_fan_dir);
 		if (!acpi_device_dir(device))
-			return_VALUE(-ENODEV);
+			return -ENODEV;
 		acpi_device_dir(device)->owner = THIS_MODULE;
 	}
 
@@ -153,19 +150,18 @@
 				  S_IFREG | S_IRUGO | S_IWUSR,
 				  acpi_device_dir(device));
 	if (!entry)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	else {
 		entry->proc_fops = &acpi_fan_state_ops;
 		entry->data = acpi_driver_data(device);
 		entry->owner = THIS_MODULE;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_fan_remove_fs(struct acpi_device *device)
 {
-	ACPI_FUNCTION_TRACE("acpi_fan_remove_fs");
 
 	if (acpi_device_dir(device)) {
 		remove_proc_entry(ACPI_FAN_FILE_STATE, acpi_device_dir(device));
@@ -173,7 +169,7 @@
 		acpi_device_dir(device) = NULL;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 /* --------------------------------------------------------------------------
@@ -186,14 +182,13 @@
 	struct acpi_fan *fan = NULL;
 	int state = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_fan_add");
 
 	if (!device)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	fan = kmalloc(sizeof(struct acpi_fan), GFP_KERNEL);
 	if (!fan)
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 	memset(fan, 0, sizeof(struct acpi_fan));
 
 	fan->handle = device->handle;
@@ -223,17 +218,16 @@
 	if (result)
 		kfree(fan);
 
-	return_VALUE(result);
+	return result;
 }
 
 static int acpi_fan_remove(struct acpi_device *device, int type)
 {
 	struct acpi_fan *fan = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_fan_remove");
 
 	if (!device || !acpi_driver_data(device))
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	fan = (struct acpi_fan *)acpi_driver_data(device);
 
@@ -241,7 +235,7 @@
 
 	kfree(fan);
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_fan_suspend(struct acpi_device *device, int state)
@@ -280,31 +274,29 @@
 {
 	int result = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_fan_init");
 
 	acpi_fan_dir = proc_mkdir(ACPI_FAN_CLASS, acpi_root_dir);
 	if (!acpi_fan_dir)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	acpi_fan_dir->owner = THIS_MODULE;
 
 	result = acpi_bus_register_driver(&acpi_fan_driver);
 	if (result < 0) {
 		remove_proc_entry(ACPI_FAN_CLASS, acpi_root_dir);
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 static void __exit acpi_fan_exit(void)
 {
-	ACPI_FUNCTION_TRACE("acpi_fan_exit");
 
 	acpi_bus_unregister_driver(&acpi_fan_driver);
 
 	remove_proc_entry(ACPI_FAN_CLASS, acpi_root_dir);
 
-	return_VOID;
+	return;
 }
 
 module_init(acpi_fan_init);
diff --git a/drivers/acpi/hotkey.c b/drivers/acpi/hotkey.c
index 393dbbc..fd81a0f 100644
--- a/drivers/acpi/hotkey.c
+++ b/drivers/acpi/hotkey.c
@@ -231,11 +231,10 @@
 
 static int hotkey_info_seq_show(struct seq_file *seq, void *offset)
 {
-	ACPI_FUNCTION_TRACE("hotkey_info_seq_show");
 
 	seq_printf(seq, "Hotkey generic driver ver: %s\n", HOTKEY_ACPI_VERSION);
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int hotkey_info_open_fs(struct inode *inode, struct file *file)
@@ -266,7 +265,6 @@
 	    (struct acpi_polling_hotkey *)seq->private;
 	char *buf;
 
-	ACPI_FUNCTION_TRACE("hotkey_polling_seq_show");
 
 	if (poll_hotkey->poll_result) {
 		buf = format_result(poll_hotkey->poll_result);
@@ -274,7 +272,7 @@
 			seq_printf(seq, "%s", buf);
 		kfree(buf);
 	}
-	return_VALUE(0);
+	return 0;
 }
 
 static int hotkey_polling_open_fs(struct inode *inode, struct file *file)
@@ -293,7 +291,6 @@
 	struct list_head *entries;
 	int val = -1;
 
-	ACPI_FUNCTION_TRACE("hotkey_get_internal_event");
 
 	list_for_each(entries, list->entries) {
 		union acpi_hotkey *key =
@@ -305,7 +302,7 @@
 		}
 	}
 
-	return_VALUE(val);
+	return val;
 }
 
 static void
@@ -314,15 +311,14 @@
 	struct acpi_device *device = NULL;
 	u32 internal_event;
 
-	ACPI_FUNCTION_TRACE("acpi_hotkey_notify_handler");
 
 	if (acpi_bus_get_device(handle, &device))
-		return_VOID;
+		return;
 
 	internal_event = hotkey_get_internal_event(event, &global_hotkey_list);
 	acpi_bus_generate_event(device, internal_event, 0);
 
-	return_VOID;
+	return;
 }
 
 /* Need to invent automatically hotkey add method */
@@ -346,7 +342,6 @@
 	char proc_name[80];
 	mode_t mode;
 
-	ACPI_FUNCTION_TRACE("create_polling_proc");
 	mode = S_IFREG | S_IRUGO | S_IWUGO;
 
 	sprintf(proc_name, "%d", device->link.hotkey_standard_num);
@@ -356,7 +351,7 @@
 	proc = create_proc_entry(proc_name, mode, hotkey_proc_dir);
 
 	if (!proc) {
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	} else {
 		proc->proc_fops = &hotkey_polling_fops;
 		proc->owner = THIS_MODULE;
@@ -365,7 +360,7 @@
 		proc->gid = 0;
 		device->poll_hotkey.proc = proc;
 	}
-	return_VALUE(0);
+	return 0;
 }
 
 static int hotkey_add(union acpi_hotkey *device)
@@ -373,7 +368,6 @@
 	int status = 0;
 	struct acpi_device *dev = NULL;
 
-	ACPI_FUNCTION_TRACE("hotkey_add");
 
 	if (device->link.hotkey_type == ACPI_HOTKEY_EVENT) {
 		acpi_bus_get_device(device->event_hotkey.bus_handle, &dev);
@@ -388,14 +382,13 @@
 
 	list_add_tail(&device->link.entries, global_hotkey_list.entries);
 
-	return_VALUE(status);
+	return status;
 }
 
 static int hotkey_remove(union acpi_hotkey *device)
 {
 	struct list_head *entries, *next;
 
-	ACPI_FUNCTION_TRACE("hotkey_remove");
 
 	list_for_each_safe(entries, next, global_hotkey_list.entries) {
 		union acpi_hotkey *key =
@@ -409,14 +402,13 @@
 		}
 	}
 	kfree(device);
-	return_VALUE(0);
+	return 0;
 }
 
 static int hotkey_update(union acpi_hotkey *key)
 {
 	struct list_head *entries;
 
-	ACPI_FUNCTION_TRACE("hotkey_update");
 
 	list_for_each(entries, global_hotkey_list.entries) {
 		union acpi_hotkey *tmp =
@@ -458,19 +450,18 @@
 				 */
 				kfree(key);
 			}
-			return_VALUE(0);
+			return 0;
 			break;
 		}
 	}
 
-	return_VALUE(-ENODEV);
+	return -ENODEV;
 }
 
 static void free_hotkey_device(union acpi_hotkey *key)
 {
 	struct acpi_device *dev;
 
-	ACPI_FUNCTION_TRACE("free_hotkey_device");
 
 	if (key->link.hotkey_type == ACPI_HOTKEY_EVENT) {
 		acpi_bus_get_device(key->event_hotkey.bus_handle, &dev);
@@ -490,7 +481,7 @@
 		free_poll_hotkey_buffer(key);
 	}
 	kfree(key);
-	return_VOID;
+	return;
 }
 
 static void free_hotkey_buffer(union acpi_hotkey *key)
@@ -511,7 +502,6 @@
 	acpi_handle tmp_handle;
 	acpi_status status = AE_OK;
 
-	ACPI_FUNCTION_TRACE("init_hotkey_device");
 
 	if (std_num < 0 || IS_POLL(std_num) || !key)
 		goto do_fail;
@@ -538,9 +528,9 @@
 				 method, &tmp_handle);
 	if (ACPI_FAILURE(status))
 		goto do_fail;
-	return_VALUE(AE_OK);
+	return AE_OK;
       do_fail:
-	return_VALUE(-ENODEV);
+	return -ENODEV;
 }
 
 static int
@@ -552,7 +542,6 @@
 	acpi_status status = AE_OK;
 	acpi_handle tmp_handle;
 
-	ACPI_FUNCTION_TRACE("init_poll_hotkey_device");
 
 	if (std_num < 0 || IS_EVENT(std_num) || !key)
 		goto do_fail;
@@ -587,22 +576,20 @@
 	    (union acpi_object *)kmalloc(sizeof(union acpi_object), GFP_KERNEL);
 	if (!key->poll_hotkey.poll_result)
 		goto do_fail;
-	return_VALUE(AE_OK);
+	return AE_OK;
       do_fail:
-	return_VALUE(-ENODEV);
+	return -ENODEV;
 }
 
 static int hotkey_open_config(struct inode *inode, struct file *file)
 {
-	ACPI_FUNCTION_TRACE("hotkey_open_config");
-	return_VALUE(single_open
+	return (single_open
 		     (file, hotkey_config_seq_show, PDE(inode)->data));
 }
 
 static int hotkey_poll_open_config(struct inode *inode, struct file *file)
 {
-	ACPI_FUNCTION_TRACE("hotkey_poll_open_config");
-	return_VALUE(single_open
+	return (single_open
 		     (file, hotkey_poll_config_seq_show, PDE(inode)->data));
 }
 
@@ -615,7 +602,6 @@
 	struct acpi_buffer bus = { ACPI_PATHNAME_MAX, bus_name };
 	struct acpi_buffer act = { ACPI_PATHNAME_MAX, action_name };
 
-	ACPI_FUNCTION_TRACE(("hotkey_config_seq_show"));
 
 	list_for_each(entries, hotkey_list->entries) {
 		union acpi_hotkey *key =
@@ -633,7 +619,7 @@
 		}
 	}
 	seq_puts(seq, "\n");
-	return_VALUE(0);
+	return 0;
 }
 
 static int hotkey_poll_config_seq_show(struct seq_file *seq, void *offset)
@@ -645,7 +631,6 @@
 	struct acpi_buffer bus = { ACPI_PATHNAME_MAX, bus_name };
 	struct acpi_buffer act = { ACPI_PATHNAME_MAX, action_name };
 
-	ACPI_FUNCTION_TRACE(("hotkey_config_seq_show"));
 
 	list_for_each(entries, hotkey_list->entries) {
 		union acpi_hotkey *key =
@@ -663,7 +648,7 @@
 		}
 	}
 	seq_puts(seq, "\n");
-	return_VALUE(0);
+	return 0;
 }
 
 static int
@@ -675,7 +660,6 @@
 	  char **method, int *internal_event_num, int *external_event_num)
 {
 	char *tmp, *tmp1, count;
-	ACPI_FUNCTION_TRACE(("get_parms"));
 
 	sscanf(config_record, "%d", cmd);
 
@@ -741,9 +725,9 @@
 	    0)
 		goto do_fail;
 
-	return_VALUE(6);
+	return 6;
       do_fail:
-	return_VALUE(-1);
+	return -1;
 }
 
 /*  count is length for one input record */
@@ -760,16 +744,15 @@
 	int ret = 0;
 	union acpi_hotkey *key = NULL;
 
-	ACPI_FUNCTION_TRACE(("hotkey_write_config"));
 
 	config_record = (char *)kmalloc(count + 1, GFP_KERNEL);
 	if (!config_record)
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 
 	if (copy_from_user(config_record, buffer, count)) {
 		kfree(config_record);
 		printk(KERN_ERR PREFIX "Invalid data\n");
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 	}
 	config_record[count] = 0;
 
@@ -790,7 +773,7 @@
 		kfree(action_handle);
 		kfree(method);
 		printk(KERN_ERR PREFIX "Invalid data format ret=%d\n", ret);
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 	}
 
 	key = kmalloc(sizeof(union acpi_hotkey), GFP_KERNEL);
@@ -825,7 +808,7 @@
 			free_poll_hotkey_buffer(key);
 		kfree(key);
 		printk(KERN_ERR PREFIX "Invalid hotkey\n");
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 	}
 
       cont_cmd:
@@ -851,7 +834,7 @@
 		goto fail_out;
 		break;
 	}
-	return_VALUE(count);
+	return count;
       fail_out:
 	if (IS_EVENT(internal_event_num))
 		free_hotkey_buffer(key);
@@ -859,7 +842,7 @@
 		free_poll_hotkey_buffer(key);
 	kfree(key);
 	printk(KERN_ERR PREFIX "invalid key\n");
-	return_VALUE(-EINVAL);
+	return -EINVAL;
 }
 
 /*
@@ -876,7 +859,6 @@
 	union acpi_object in_obj;	/* the only param we use */
 	acpi_status status;
 
-	ACPI_FUNCTION_TRACE("write_acpi_int");
 	params.count = 1;
 	params.pointer = &in_obj;
 	in_obj.type = ACPI_TYPE_INTEGER;
@@ -884,7 +866,7 @@
 
 	status = acpi_evaluate_object(handle, (char *)method, &params, output);
 
-	return_VALUE(status == AE_OK);
+	return (status == AE_OK);
 }
 
 static int read_acpi_int(acpi_handle handle, const char *method,
@@ -894,7 +876,6 @@
 	union acpi_object out_obj;
 	acpi_status status;
 
-	ACPI_FUNCTION_TRACE("read_acpi_int");
 	output.length = sizeof(out_obj);
 	output.pointer = &out_obj;
 
@@ -904,7 +885,7 @@
 		val->type = out_obj.type;
 	} else
 		printk(KERN_ERR PREFIX "null val pointer\n");
-	return_VALUE((status == AE_OK)
+	return ((status == AE_OK)
 		     && (out_obj.type == ACPI_TYPE_INTEGER));
 }
 
@@ -941,24 +922,23 @@
 	int event, method_type, type, value;
 	union acpi_hotkey *key;
 
-	ACPI_FUNCTION_TRACE("hotkey_execte_aml_method");
 
 	arg = (char *)kmalloc(count + 1, GFP_KERNEL);
 	if (!arg)
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 	arg[count] = 0;
 
 	if (copy_from_user(arg, buffer, count)) {
 		kfree(arg);
 		printk(KERN_ERR PREFIX "Invalid argument 2\n");
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 	}
 
 	if (sscanf(arg, "%d:%d:%d:%d", &event, &method_type, &type, &value) !=
 	    4) {
 		kfree(arg);
 		printk(KERN_ERR PREFIX "Invalid argument 3\n");
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 	}
 	kfree(arg);
 	if (type == ACPI_TYPE_INTEGER) {
@@ -984,11 +964,11 @@
 		}
 	} else {
 		printk(KERN_WARNING "Not supported\n");
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 	}
-	return_VALUE(count);
+	return count;
       do_fail:
-	return_VALUE(-EINVAL);
+	return -EINVAL;
 
 }
 
@@ -997,7 +977,6 @@
 	int result;
 	mode_t mode = S_IFREG | S_IRUGO | S_IWUGO;
 
-	ACPI_FUNCTION_TRACE("hotkey_init");
 
 	if (acpi_disabled)
 		return -ENODEV;
@@ -1084,7 +1063,6 @@
 {
 	struct list_head *entries, *next;
 
-	ACPI_FUNCTION_TRACE("hotkey_exit");
 
 	list_for_each_safe(entries, next, global_hotkey_list.entries) {
 		union acpi_hotkey *key =
diff --git a/drivers/acpi/motherboard.c b/drivers/acpi/motherboard.c
index d51d68f..ec6b7f9 100644
--- a/drivers/acpi/motherboard.c
+++ b/drivers/acpi/motherboard.c
@@ -52,13 +52,12 @@
 {
 	struct resource *requested_res = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_reserve_io_ranges");
 
 	if (res->type == ACPI_RESOURCE_TYPE_IO) {
 		struct acpi_resource_io *io_res = &res->data.io;
 
 		if (io_res->minimum != io_res->maximum)
-			return_VALUE(AE_OK);
+			return AE_OK;
 		if (IS_RESERVED_ADDR
 		    (io_res->minimum, io_res->address_length)) {
 			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
@@ -92,7 +91,7 @@
 
 	if (requested_res)
 		requested_res->flags &= ~IORESOURCE_BUSY;
-	return_VALUE(AE_OK);
+	return AE_OK;
 }
 
 static int acpi_motherboard_add(struct acpi_device *device)
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 7d4cc12..8e46d1b 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -587,19 +587,18 @@
 {
 	struct acpi_os_dpc *dpc = NULL;
 
-	ACPI_FUNCTION_TRACE("os_execute_deferred");
 
 	dpc = (struct acpi_os_dpc *)context;
 	if (!dpc) {
 		printk(KERN_ERR PREFIX "Invalid (NULL) context\n");
-		return_VOID;
+		return;
 	}
 
 	dpc->function(dpc->context);
 
 	kfree(dpc);
 
-	return_VOID;
+	return;
 }
 
 static int acpi_os_execute_thread(void *context)
@@ -693,7 +692,6 @@
 {
 	spinlock_t *lock_ptr;
 
-	ACPI_FUNCTION_TRACE("os_create_lock");
 
 	lock_ptr = acpi_os_allocate(sizeof(spinlock_t));
 
@@ -703,7 +701,7 @@
 
 	*out_handle = lock_ptr;
 
-	return_ACPI_STATUS(AE_OK);
+	return AE_OK;
 }
 
 /*
@@ -711,13 +709,12 @@
  */
 void acpi_os_delete_lock(acpi_handle handle)
 {
-	ACPI_FUNCTION_TRACE("os_create_lock");
 
 	ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Deleting spinlock[%p].\n", handle));
 
 	acpi_os_free(handle);
 
-	return_VOID;
+	return;
 }
 
 acpi_status
@@ -725,11 +722,10 @@
 {
 	struct semaphore *sem = NULL;
 
-	ACPI_FUNCTION_TRACE("os_create_semaphore");
 
 	sem = acpi_os_allocate(sizeof(struct semaphore));
 	if (!sem)
-		return_ACPI_STATUS(AE_NO_MEMORY);
+		return AE_NO_MEMORY;
 	memset(sem, 0, sizeof(struct semaphore));
 
 	sema_init(sem, initial_units);
@@ -739,7 +735,7 @@
 	ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Creating semaphore[%p|%d].\n",
 			  *handle, initial_units));
 
-	return_ACPI_STATUS(AE_OK);
+	return AE_OK;
 }
 
 EXPORT_SYMBOL(acpi_os_create_semaphore);
@@ -755,17 +751,16 @@
 {
 	struct semaphore *sem = (struct semaphore *)handle;
 
-	ACPI_FUNCTION_TRACE("os_delete_semaphore");
 
 	if (!sem)
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
+		return AE_BAD_PARAMETER;
 
 	ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Deleting semaphore[%p].\n", handle));
 
 	acpi_os_free(sem);
 	sem = NULL;
 
-	return_ACPI_STATUS(AE_OK);
+	return AE_OK;
 }
 
 EXPORT_SYMBOL(acpi_os_delete_semaphore);
@@ -785,13 +780,12 @@
 	struct semaphore *sem = (struct semaphore *)handle;
 	int ret = 0;
 
-	ACPI_FUNCTION_TRACE("os_wait_semaphore");
 
 	if (!sem || (units < 1))
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
+		return AE_BAD_PARAMETER;
 
 	if (units > 1)
-		return_ACPI_STATUS(AE_SUPPORT);
+		return AE_SUPPORT;
 
 	ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Waiting for semaphore[%p|%d|%d]\n",
 			  handle, units, timeout));
@@ -850,7 +844,7 @@
 				  units, timeout));
 	}
 
-	return_ACPI_STATUS(status);
+	return status;
 }
 
 EXPORT_SYMBOL(acpi_os_wait_semaphore);
@@ -862,20 +856,19 @@
 {
 	struct semaphore *sem = (struct semaphore *)handle;
 
-	ACPI_FUNCTION_TRACE("os_signal_semaphore");
 
 	if (!sem || (units < 1))
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
+		return AE_BAD_PARAMETER;
 
 	if (units > 1)
-		return_ACPI_STATUS(AE_SUPPORT);
+		return AE_SUPPORT;
 
 	ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Signaling semaphore[%p|%d]\n", handle,
 			  units));
 
 	up(sem);
 
-	return_ACPI_STATUS(AE_OK);
+	return AE_OK;
 }
 
 EXPORT_SYMBOL(acpi_os_signal_semaphore);
diff --git a/drivers/acpi/pci_bind.c b/drivers/acpi/pci_bind.c
index 3e7d019..1e2ae6e 100644
--- a/drivers/acpi/pci_bind.c
+++ b/drivers/acpi/pci_bind.c
@@ -47,11 +47,10 @@
 static void acpi_pci_data_handler(acpi_handle handle, u32 function,
 				  void *context)
 {
-	ACPI_FUNCTION_TRACE("acpi_pci_data_handler");
 
 	/* TBD: Anything we need to do here? */
 
-	return_VOID;
+	return;
 }
 
 /**
@@ -68,17 +67,16 @@
 	struct acpi_device *device = NULL;
 	struct acpi_pci_data *data = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_get_pci_id");
 
 	if (!id)
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
+		return AE_BAD_PARAMETER;
 
 	result = acpi_bus_get_device(handle, &device);
 	if (result) {
 		printk(KERN_ERR PREFIX
 			    "Invalid ACPI Bus context for device %s\n",
 			    acpi_device_bid(device));
-		return_ACPI_STATUS(AE_NOT_EXIST);
+		return AE_NOT_EXIST;
 	}
 
 	status = acpi_get_data(handle, acpi_pci_data_handler, (void **)&data);
@@ -86,7 +84,7 @@
 		ACPI_EXCEPTION((AE_INFO, status,
 				"Invalid ACPI-PCI context for device %s",
 				acpi_device_bid(device)));
-		return_ACPI_STATUS(status);
+		return status;
 	}
 
 	*id = data->id;
@@ -103,7 +101,7 @@
 			  acpi_device_bid(device), id->segment, id->bus,
 			  id->device, id->function));
 
-	return_ACPI_STATUS(AE_OK);
+	return AE_OK;
 }
 
 EXPORT_SYMBOL(acpi_get_pci_id);
@@ -120,14 +118,13 @@
 	struct pci_dev *dev;
 	struct pci_bus *bus;
 
-	ACPI_FUNCTION_TRACE("acpi_pci_bind");
 
 	if (!device || !device->parent)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	pathname = kmalloc(ACPI_PATHNAME_MAX, GFP_KERNEL);
 	if (!pathname)
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 	memset(pathname, 0, ACPI_PATHNAME_MAX);
 	buffer.length = ACPI_PATHNAME_MAX;
 	buffer.pointer = pathname;
@@ -135,7 +132,7 @@
 	data = kmalloc(sizeof(struct acpi_pci_data), GFP_KERNEL);
 	if (!data) {
 		kfree(pathname);
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 	}
 	memset(data, 0, sizeof(struct acpi_pci_data));
 
@@ -269,7 +266,7 @@
 	if (result)
 		kfree(data);
 
-	return_VALUE(result);
+	return result;
 }
 
 int acpi_pci_unbind(struct acpi_device *device)
@@ -280,14 +277,13 @@
 	char *pathname = NULL;
 	struct acpi_buffer buffer = { 0, NULL };
 
-	ACPI_FUNCTION_TRACE("acpi_pci_unbind");
 
 	if (!device || !device->parent)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	pathname = (char *)kmalloc(ACPI_PATHNAME_MAX, GFP_KERNEL);
 	if (!pathname)
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 	memset(pathname, 0, ACPI_PATHNAME_MAX);
 
 	buffer.length = ACPI_PATHNAME_MAX;
@@ -322,7 +318,7 @@
 	kfree(data);
 
       end:
-	return_VALUE(result);
+	return result;
 }
 
 int
@@ -335,11 +331,10 @@
 	char *pathname = NULL;
 	struct acpi_buffer buffer = { 0, NULL };
 
-	ACPI_FUNCTION_TRACE("acpi_pci_bind_root");
 
 	pathname = (char *)kmalloc(ACPI_PATHNAME_MAX, GFP_KERNEL);
 	if (!pathname)
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 	memset(pathname, 0, ACPI_PATHNAME_MAX);
 
 	buffer.length = ACPI_PATHNAME_MAX;
@@ -347,13 +342,13 @@
 
 	if (!device || !id || !bus) {
 		kfree(pathname);
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 	}
 
 	data = kmalloc(sizeof(struct acpi_pci_data), GFP_KERNEL);
 	if (!data) {
 		kfree(pathname);
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 	}
 	memset(data, 0, sizeof(struct acpi_pci_data));
 
@@ -381,5 +376,5 @@
 	if (result != 0)
 		kfree(data);
 
-	return_VALUE(result);
+	return result;
 }
diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c
index f24a6100..fb96e3b 100644
--- a/drivers/acpi/pci_irq.c
+++ b/drivers/acpi/pci_irq.c
@@ -55,10 +55,9 @@
 	struct list_head *node = NULL;
 	struct acpi_prt_entry *entry = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_pci_irq_find_prt_entry");
 
 	if (!acpi_prt.count)
-		return_PTR(NULL);
+		return NULL;
 
 	/*
 	 * Parse through all PRT entries looking for a match on the specified
@@ -73,12 +72,12 @@
 		    && (device == entry->id.device)
 		    && (pin == entry->pin)) {
 			spin_unlock(&acpi_prt_lock);
-			return_PTR(entry);
+			return entry;
 		}
 	}
 
 	spin_unlock(&acpi_prt_lock);
-	return_PTR(NULL);
+	return NULL;
 }
 
 static int
@@ -87,14 +86,13 @@
 {
 	struct acpi_prt_entry *entry = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_pci_irq_add_entry");
 
 	if (!prt)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	entry = kmalloc(sizeof(struct acpi_prt_entry), GFP_KERNEL);
 	if (!entry)
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 	memset(entry, 0, sizeof(struct acpi_prt_entry));
 
 	entry->id.segment = segment;
@@ -141,7 +139,7 @@
 	acpi_prt.count++;
 	spin_unlock(&acpi_prt_lock);
 
-	return_VALUE(0);
+	return 0;
 }
 
 static void
@@ -163,11 +161,10 @@
 	struct acpi_pci_routing_table *entry = NULL;
 	static int first_time = 1;
 
-	ACPI_FUNCTION_TRACE("acpi_pci_irq_add_prt");
 
 	pathname = (char *)kmalloc(ACPI_PATHNAME_MAX, GFP_KERNEL);
 	if (!pathname)
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 	memset(pathname, 0, ACPI_PATHNAME_MAX);
 
 	if (first_time) {
@@ -199,12 +196,12 @@
 	if (status != AE_BUFFER_OVERFLOW) {
 		ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PRT [%s]",
 				acpi_format_exception(status)));
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
 	prt = kmalloc(buffer.length, GFP_KERNEL);
 	if (!prt) {
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 	}
 	memset(prt, 0, buffer.length);
 	buffer.pointer = prt;
@@ -214,7 +211,7 @@
 		ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PRT [%s]",
 				acpi_format_exception(status)));
 		kfree(buffer.pointer);
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
 	entry = prt;
@@ -227,7 +224,7 @@
 
 	kfree(prt);
 
-	return_VALUE(0);
+	return 0;
 }
 
 void acpi_pci_irq_del_prt(int segment, int bus)
@@ -262,7 +259,6 @@
 {
 	int irq;
 
-	ACPI_FUNCTION_TRACE("acpi_pci_allocate_irq");
 
 	if (entry->link.handle) {
 		irq = acpi_pci_link_allocate_irq(entry->link.handle,
@@ -271,7 +267,7 @@
 		if (irq < 0) {
 			printk(KERN_WARNING PREFIX
 				      "Invalid IRQ link routing entry\n");
-			return_VALUE(-1);
+			return -1;
 		}
 	} else {
 		irq = entry->link.index;
@@ -280,7 +276,7 @@
 	}
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found IRQ %d\n", irq));
-	return_VALUE(irq);
+	return irq;
 }
 
 static int
@@ -289,13 +285,12 @@
 {
 	int irq;
 
-	ACPI_FUNCTION_TRACE("acpi_pci_free_irq");
 	if (entry->link.handle) {
 		irq = acpi_pci_link_free_irq(entry->link.handle);
 	} else {
 		irq = entry->link.index;
 	}
-	return_VALUE(irq);
+	return irq;
 }
 
 /*
@@ -315,7 +310,6 @@
 	int bus_nr = bus->number;
 	int ret;
 
-	ACPI_FUNCTION_TRACE("acpi_pci_irq_lookup");
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 			  "Searching for PRT entry for %02x:%02x:%02x[%c]\n",
@@ -324,11 +318,11 @@
 	entry = acpi_pci_irq_find_prt_entry(segment, bus_nr, device, pin);
 	if (!entry) {
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "PRT entry not found\n"));
-		return_VALUE(-1);
+		return -1;
 	}
 
 	ret = func(entry, triggering, polarity, link);
-	return_VALUE(ret);
+	return ret;
 }
 
 /*
@@ -346,10 +340,9 @@
 	int irq = -1;
 	u8 bridge_pin = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_pci_irq_derive");
 
 	if (!dev)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	/* 
 	 * Attempt to derive an IRQ for this device from a parent bridge's
@@ -366,7 +359,7 @@
 				ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 						  "No interrupt pin configured for device %s\n",
 						  pci_name(bridge)));
-				return_VALUE(-1);
+				return -1;
 			}
 			/* Pin is from 0 to 3 */
 			bridge_pin--;
@@ -381,13 +374,13 @@
 	if (irq < 0) {
 		printk(KERN_WARNING PREFIX "Unable to derive IRQ for device %s\n",
 			      pci_name(dev));
-		return_VALUE(-1);
+		return -1;
 	}
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Derive IRQ %d for device %s from %s\n",
 			  irq, pci_name(dev), pci_name(bridge)));
 
-	return_VALUE(irq);
+	return irq;
 }
 
 /*
@@ -405,23 +398,22 @@
 	char *link = NULL;
 	int rc;
 
-	ACPI_FUNCTION_TRACE("acpi_pci_irq_enable");
 
 	if (!dev)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	pin = dev->pin;
 	if (!pin) {
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "No interrupt pin configured for device %s\n",
 				  pci_name(dev)));
-		return_VALUE(0);
+		return 0;
 	}
 	pin--;
 
 	if (!dev->bus) {
 		printk(KERN_ERR PREFIX "Invalid (NULL) 'bus' field\n");
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
 	/* 
@@ -453,10 +445,10 @@
 			printk(" - using IRQ %d\n", dev->irq);
 			acpi_register_gsi(dev->irq, ACPI_LEVEL_SENSITIVE,
 					  ACPI_ACTIVE_LOW);
-			return_VALUE(0);
+			return 0;
 		} else {
 			printk("\n");
-			return_VALUE(0);
+			return 0;
 		}
 	}
 
@@ -464,7 +456,7 @@
 	if (rc < 0) {
 		printk(KERN_WARNING PREFIX "PCI Interrupt %s[%c]: failed "
 		       "to register GSI\n", pci_name(dev), ('A' + pin));
-		return_VALUE(rc);
+		return rc;
 	}
 	dev->irq = rc;
 
@@ -478,7 +470,7 @@
 	       (triggering == ACPI_LEVEL_SENSITIVE) ? "level" : "edge",
 	       (polarity == ACPI_ACTIVE_LOW) ? "low" : "high", dev->irq);
 
-	return_VALUE(0);
+	return 0;
 }
 
 EXPORT_SYMBOL(acpi_pci_irq_enable);
@@ -495,14 +487,13 @@
 	int triggering = ACPI_LEVEL_SENSITIVE;
 	int polarity = ACPI_ACTIVE_LOW;
 
-	ACPI_FUNCTION_TRACE("acpi_pci_irq_disable");
 
 	if (!dev || !dev->bus)
-		return_VOID;
+		return;
 
 	pin = dev->pin;
 	if (!pin)
-		return_VOID;
+		return;
 	pin--;
 
 	/*
@@ -520,7 +511,7 @@
 					  &triggering, &polarity, NULL,
 					  acpi_pci_free_irq);
 	if (gsi < 0)
-		return_VOID;
+		return;
 
 	/*
 	 * TBD: It might be worth clearing dev->irq by magic constant
@@ -532,5 +523,5 @@
 
 	acpi_unregister_gsi(gsi);
 
-	return_VOID;
+	return;
 }
diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index d7aa9c1..1badce2 100644
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -107,17 +107,16 @@
 	struct acpi_pci_link *link = (struct acpi_pci_link *)context;
 	u32 i = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_pci_link_check_possible");
 
 	switch (resource->type) {
 	case ACPI_RESOURCE_TYPE_START_DEPENDENT:
-		return_ACPI_STATUS(AE_OK);
+		return AE_OK;
 	case ACPI_RESOURCE_TYPE_IRQ:
 		{
 			struct acpi_resource_irq *p = &resource->data.irq;
 			if (!p || !p->interrupt_count) {
 				printk(KERN_WARNING PREFIX "Blank IRQ resource\n");
-				return_ACPI_STATUS(AE_OK);
+				return AE_OK;
 			}
 			for (i = 0;
 			     (i < p->interrupt_count
@@ -142,7 +141,7 @@
 			if (!p || !p->interrupt_count) {
 				printk(KERN_WARNING PREFIX
 					      "Blank EXT IRQ resource\n");
-				return_ACPI_STATUS(AE_OK);
+				return AE_OK;
 			}
 			for (i = 0;
 			     (i < p->interrupt_count
@@ -162,33 +161,32 @@
 		}
 	default:
 		printk(KERN_ERR PREFIX "Resource is not an IRQ entry\n");
-		return_ACPI_STATUS(AE_OK);
+		return AE_OK;
 	}
 
-	return_ACPI_STATUS(AE_CTRL_TERMINATE);
+	return AE_CTRL_TERMINATE;
 }
 
 static int acpi_pci_link_get_possible(struct acpi_pci_link *link)
 {
 	acpi_status status;
 
-	ACPI_FUNCTION_TRACE("acpi_pci_link_get_possible");
 
 	if (!link)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	status = acpi_walk_resources(link->handle, METHOD_NAME__PRS,
 				     acpi_pci_link_check_possible, link);
 	if (ACPI_FAILURE(status)) {
 		ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PRS"));
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 			  "Found %d possible IRQs\n",
 			  link->irq.possible_count));
 
-	return_VALUE(0);
+	return 0;
 }
 
 static acpi_status
@@ -196,7 +194,6 @@
 {
 	int *irq = (int *)context;
 
-	ACPI_FUNCTION_TRACE("acpi_pci_link_check_current");
 
 	switch (resource->type) {
 	case ACPI_RESOURCE_TYPE_IRQ:
@@ -209,7 +206,7 @@
 				 */
 				ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 						  "Blank IRQ resource\n"));
-				return_ACPI_STATUS(AE_OK);
+				return AE_OK;
 			}
 			*irq = p->interrupts[0];
 			break;
@@ -225,7 +222,7 @@
 				 */
 				printk(KERN_WARNING PREFIX
 					      "Blank EXT IRQ resource\n");
-				return_ACPI_STATUS(AE_OK);
+				return AE_OK;
 			}
 			*irq = p->interrupts[0];
 			break;
@@ -234,9 +231,9 @@
 	default:
 		printk(KERN_ERR PREFIX "Resource %d isn't an IRQ\n", resource->type);
 	case ACPI_RESOURCE_TYPE_END_TAG:
-		return_ACPI_STATUS(AE_OK);
+		return AE_OK;
 	}
-	return_ACPI_STATUS(AE_CTRL_TERMINATE);
+	return AE_CTRL_TERMINATE;
 }
 
 /*
@@ -252,10 +249,9 @@
 	acpi_status status = AE_OK;
 	int irq = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_pci_link_get_current");
 
 	if (!link || !link->handle)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	link->irq.active = 0;
 
@@ -270,7 +266,7 @@
 
 		if (!link->device->status.enabled) {
 			ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Link disabled\n"));
-			return_VALUE(0);
+			return 0;
 		}
 	}
 
@@ -296,7 +292,7 @@
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Link at IRQ %d \n", link->irq.active));
 
       end:
-	return_VALUE(result);
+	return result;
 }
 
 static int acpi_pci_link_set(struct acpi_pci_link *link, int irq)
@@ -309,14 +305,13 @@
 	} *resource;
 	struct acpi_buffer buffer = { 0, NULL };
 
-	ACPI_FUNCTION_TRACE("acpi_pci_link_set");
 
 	if (!link || !irq)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	resource = kmalloc(sizeof(*resource) + 1, GFP_ATOMIC);
 	if (!resource)
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 
 	memset(resource, 0, sizeof(*resource) + 1);
 	buffer.length = sizeof(*resource) + 1;
@@ -413,7 +408,7 @@
 
       end:
 	kfree(resource);
-	return_VALUE(result);
+	return result;
 }
 
 /* --------------------------------------------------------------------------
@@ -487,7 +482,6 @@
 	struct acpi_pci_link *link = NULL;
 	int i = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_irq_penalty_init");
 
 	/*
 	 * Update penalties to facilitate IRQ balancing.
@@ -524,7 +518,7 @@
 	/* Add a penalty for the SCI */
 	acpi_irq_penalty[acpi_fadt.sci_int] += PIRQ_PENALTY_PCI_USING;
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_irq_balance;	/* 0: static, 1: balance */
@@ -534,13 +528,12 @@
 	int irq;
 	int i;
 
-	ACPI_FUNCTION_TRACE("acpi_pci_link_allocate");
 
 	if (link->irq.initialized) {
 		if (link->refcnt == 0)
 			/* This means the link is disabled but initialized */
 			acpi_pci_link_set(link, link->irq.active);
-		return_VALUE(0);
+		return 0;
 	}
 
 	/*
@@ -587,7 +580,7 @@
 			    "Try pci=noacpi or acpi=off\n",
 			    acpi_device_name(link->device),
 			    acpi_device_bid(link->device));
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	} else {
 		acpi_irq_penalty[link->irq.active] += PIRQ_PENALTY_PCI_USING;
 		printk(PREFIX "%s [%s] enabled at IRQ %d\n",
@@ -597,7 +590,7 @@
 
 	link->irq.initialized = 1;
 
-	return_VALUE(0);
+	return 0;
 }
 
 /*
@@ -615,36 +608,35 @@
 	struct acpi_device *device = NULL;
 	struct acpi_pci_link *link = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_pci_link_allocate_irq");
 
 	result = acpi_bus_get_device(handle, &device);
 	if (result) {
 		printk(KERN_ERR PREFIX "Invalid link device\n");
-		return_VALUE(-1);
+		return -1;
 	}
 
 	link = (struct acpi_pci_link *)acpi_driver_data(device);
 	if (!link) {
 		printk(KERN_ERR PREFIX "Invalid link context\n");
-		return_VALUE(-1);
+		return -1;
 	}
 
 	/* TBD: Support multiple index (IRQ) entries per Link Device */
 	if (index) {
 		printk(KERN_ERR PREFIX "Invalid index %d\n", index);
-		return_VALUE(-1);
+		return -1;
 	}
 
 	mutex_lock(&acpi_link_lock);
 	if (acpi_pci_link_allocate(link)) {
 		mutex_unlock(&acpi_link_lock);
-		return_VALUE(-1);
+		return -1;
 	}
 
 	if (!link->irq.active) {
 		mutex_unlock(&acpi_link_lock);
 		printk(KERN_ERR PREFIX "Link active IRQ is 0!\n");
-		return_VALUE(-1);
+		return -1;
 	}
 	link->refcnt++;
 	mutex_unlock(&acpi_link_lock);
@@ -658,7 +650,7 @@
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 			  "Link %s is referenced\n",
 			  acpi_device_bid(link->device)));
-	return_VALUE(link->irq.active);
+	return (link->irq.active);
 }
 
 /*
@@ -671,25 +663,24 @@
 	struct acpi_pci_link *link = NULL;
 	acpi_status result;
 
-	ACPI_FUNCTION_TRACE("acpi_pci_link_free_irq");
 
 	result = acpi_bus_get_device(handle, &device);
 	if (result) {
 		printk(KERN_ERR PREFIX "Invalid link device\n");
-		return_VALUE(-1);
+		return -1;
 	}
 
 	link = (struct acpi_pci_link *)acpi_driver_data(device);
 	if (!link) {
 		printk(KERN_ERR PREFIX "Invalid link context\n");
-		return_VALUE(-1);
+		return -1;
 	}
 
 	mutex_lock(&acpi_link_lock);
 	if (!link->irq.initialized) {
 		mutex_unlock(&acpi_link_lock);
 		printk(KERN_ERR PREFIX "Link isn't initialized\n");
-		return_VALUE(-1);
+		return -1;
 	}
 #ifdef	FUTURE_USE
 	/*
@@ -711,7 +702,7 @@
 		acpi_ut_evaluate_object(link->handle, "_DIS", 0, NULL);
 	}
 	mutex_unlock(&acpi_link_lock);
-	return_VALUE(link->irq.active);
+	return (link->irq.active);
 }
 
 /* --------------------------------------------------------------------------
@@ -725,14 +716,13 @@
 	int i = 0;
 	int found = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_pci_link_add");
 
 	if (!device)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	link = kmalloc(sizeof(struct acpi_pci_link), GFP_KERNEL);
 	if (!link)
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 	memset(link, 0, sizeof(struct acpi_pci_link));
 
 	link->device = device;
@@ -781,17 +771,16 @@
 	if (result)
 		kfree(link);
 
-	return_VALUE(result);
+	return result;
 }
 
 static int acpi_pci_link_resume(struct acpi_pci_link *link)
 {
-	ACPI_FUNCTION_TRACE("acpi_pci_link_resume");
 
 	if (link->refcnt && link->irq.active && link->irq.initialized)
-		return_VALUE(acpi_pci_link_set(link, link->irq.active));
+		return (acpi_pci_link_set(link, link->irq.active));
 	else
-		return_VALUE(0);
+		return 0;
 }
 
 /*
@@ -804,7 +793,6 @@
 	struct list_head *node = NULL;
 	struct acpi_pci_link *link = NULL;
 
-	ACPI_FUNCTION_TRACE("irqrouter_resume");
 
 	/* Make sure SCI is enabled again (Apple firmware bug?) */
 	acpi_set_register(ACPI_BITREG_SCI_ENABLE, 1, ACPI_MTX_DO_NOT_LOCK);
@@ -819,17 +807,16 @@
 		acpi_pci_link_resume(link);
 	}
 	acpi_in_resume = 0;
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_pci_link_remove(struct acpi_device *device, int type)
 {
 	struct acpi_pci_link *link = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_pci_link_remove");
 
 	if (!device || !acpi_driver_data(device))
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	link = (struct acpi_pci_link *)acpi_driver_data(device);
 
@@ -839,7 +826,7 @@
 
 	kfree(link);
 
-	return_VALUE(0);
+	return 0;
 }
 
 /*
@@ -945,34 +932,32 @@
 {
 	int error;
 
-	ACPI_FUNCTION_TRACE("irqrouter_init_sysfs");
 
 	if (acpi_disabled || acpi_noirq)
-		return_VALUE(0);
+		return 0;
 
 	error = sysdev_class_register(&irqrouter_sysdev_class);
 	if (!error)
 		error = sysdev_register(&device_irqrouter);
 
-	return_VALUE(error);
+	return error;
 }
 
 device_initcall(irqrouter_init_sysfs);
 
 static int __init acpi_pci_link_init(void)
 {
-	ACPI_FUNCTION_TRACE("acpi_pci_link_init");
 
 	if (acpi_noirq)
-		return_VALUE(0);
+		return 0;
 
 	acpi_link.count = 0;
 	INIT_LIST_HEAD(&acpi_link.entries);
 
 	if (acpi_bus_register_driver(&acpi_pci_link_driver) < 0)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
-	return_VALUE(0);
+	return 0;
 }
 
 subsys_initcall(acpi_pci_link_init);
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 1930397..8f10442 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -160,14 +160,13 @@
 	unsigned long value = 0;
 	acpi_handle handle = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_pci_root_add");
 
 	if (!device)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	root = kmalloc(sizeof(struct acpi_pci_root), GFP_KERNEL);
 	if (!root)
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 	memset(root, 0, sizeof(struct acpi_pci_root));
 	INIT_LIST_HEAD(&root->node);
 
@@ -307,46 +306,43 @@
 		kfree(root);
 	}
 
-	return_VALUE(result);
+	return result;
 }
 
 static int acpi_pci_root_start(struct acpi_device *device)
 {
 	struct acpi_pci_root *root;
 
-	ACPI_FUNCTION_TRACE("acpi_pci_root_start");
 
 	list_for_each_entry(root, &acpi_pci_roots, node) {
 		if (root->handle == device->handle) {
 			pci_bus_add_devices(root->bus);
-			return_VALUE(0);
+			return 0;
 		}
 	}
-	return_VALUE(-ENODEV);
+	return -ENODEV;
 }
 
 static int acpi_pci_root_remove(struct acpi_device *device, int type)
 {
 	struct acpi_pci_root *root = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_pci_root_remove");
 
 	if (!device || !acpi_driver_data(device))
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	root = (struct acpi_pci_root *)acpi_driver_data(device);
 
 	kfree(root);
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int __init acpi_pci_root_init(void)
 {
-	ACPI_FUNCTION_TRACE("acpi_pci_root_init");
 
 	if (acpi_pci_disabled)
-		return_VALUE(0);
+		return 0;
 
 	/* DEBUG:
 	   acpi_dbg_layer = ACPI_PCI_COMPONENT;
@@ -354,9 +350,9 @@
 	 */
 
 	if (acpi_bus_register_driver(&acpi_pci_root_driver) < 0)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
-	return_VALUE(0);
+	return 0;
 }
 
 subsys_initcall(acpi_pci_root_init);
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index efc4bb7..224f729 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -98,22 +98,21 @@
 	int result = 0;
 	struct acpi_device *device = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_power_get_context");
 
 	if (!resource)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	result = acpi_bus_get_device(handle, &device);
 	if (result) {
 		printk(KERN_WARNING PREFIX "Getting context [%p]\n", handle);
-		return_VALUE(result);
+		return result;
 	}
 
 	*resource = (struct acpi_power_resource *)acpi_driver_data(device);
 	if (!resource)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_power_get_state(struct acpi_power_resource *resource)
@@ -121,14 +120,13 @@
 	acpi_status status = AE_OK;
 	unsigned long sta = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_power_get_state");
 
 	if (!resource)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	status = acpi_evaluate_integer(resource->handle, "_STA", NULL, &sta);
 	if (ACPI_FAILURE(status))
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	if (sta & 0x01)
 		resource->state = ACPI_POWER_RESOURCE_STATE_ON;
@@ -138,7 +136,7 @@
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource [%s] is %s\n",
 			  resource->name, resource->state ? "on" : "off"));
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_power_get_list_state(struct acpi_handle_list *list, int *state)
@@ -147,20 +145,19 @@
 	struct acpi_power_resource *resource = NULL;
 	u32 i = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_power_get_list_state");
 
 	if (!list || !state)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	/* The state of the list is 'on' IFF all resources are 'on'. */
 
 	for (i = 0; i < list->count; i++) {
 		result = acpi_power_get_context(list->handles[i], &resource);
 		if (result)
-			return_VALUE(result);
+			return result;
 		result = acpi_power_get_state(resource);
 		if (result)
-			return_VALUE(result);
+			return result;
 
 		*state = resource->state;
 
@@ -171,7 +168,7 @@
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource list is %s\n",
 			  *state ? "on" : "off"));
 
-	return_VALUE(result);
+	return result;
 }
 
 static int acpi_power_on(acpi_handle handle)
@@ -181,11 +178,10 @@
 	struct acpi_device *device = NULL;
 	struct acpi_power_resource *resource = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_power_on");
 
 	result = acpi_power_get_context(handle, &resource);
 	if (result)
-		return_VALUE(result);
+		return result;
 
 	resource->references++;
 
@@ -193,29 +189,29 @@
 	    || (resource->state == ACPI_POWER_RESOURCE_STATE_ON)) {
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource [%s] already on\n",
 				  resource->name));
-		return_VALUE(0);
+		return 0;
 	}
 
 	status = acpi_evaluate_object(resource->handle, "_ON", NULL, NULL);
 	if (ACPI_FAILURE(status))
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	result = acpi_power_get_state(resource);
 	if (result)
-		return_VALUE(result);
+		return result;
 	if (resource->state != ACPI_POWER_RESOURCE_STATE_ON)
-		return_VALUE(-ENOEXEC);
+		return -ENOEXEC;
 
 	/* Update the power resource's _device_ power state */
 	result = acpi_bus_get_device(resource->handle, &device);
 	if (result)
-		return_VALUE(result);
+		return result;
 	device->power.state = ACPI_STATE_D0;
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource [%s] turned on\n",
 			  resource->name));
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_power_off_device(acpi_handle handle)
@@ -225,11 +221,10 @@
 	struct acpi_device *device = NULL;
 	struct acpi_power_resource *resource = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_power_off_device");
 
 	result = acpi_power_get_context(handle, &resource);
 	if (result)
-		return_VALUE(result);
+		return result;
 
 	if (resource->references)
 		resource->references--;
@@ -238,35 +233,35 @@
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "Resource [%s] is still in use, dereferencing\n",
 				  device->pnp.bus_id));
-		return_VALUE(0);
+		return 0;
 	}
 
 	if (resource->state == ACPI_POWER_RESOURCE_STATE_OFF) {
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource [%s] already off\n",
 				  device->pnp.bus_id));
-		return_VALUE(0);
+		return 0;
 	}
 
 	status = acpi_evaluate_object(resource->handle, "_OFF", NULL, NULL);
 	if (ACPI_FAILURE(status))
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	result = acpi_power_get_state(resource);
 	if (result)
-		return_VALUE(result);
+		return result;
 	if (resource->state != ACPI_POWER_RESOURCE_STATE_OFF)
-		return_VALUE(-ENOEXEC);
+		return -ENOEXEC;
 
 	/* Update the power resource's _device_ power state */
 	result = acpi_bus_get_device(resource->handle, &device);
 	if (result)
-		return_VALUE(result);
+		return result;
 	device->power.state = ACPI_STATE_D3;
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource [%s] turned off\n",
 			  resource->name));
 
-	return_VALUE(0);
+	return 0;
 }
 
 /*
@@ -282,9 +277,8 @@
 	int i;
 	int ret = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_enable_wakeup_device_power");
 	if (!dev || !dev->wakeup.flags.valid)
-		return_VALUE(-1);
+		return -1;
 
 	arg.integer.value = 1;
 	/* Open power resource */
@@ -293,7 +287,7 @@
 		if (ret) {
 			printk(KERN_ERR PREFIX "Transition power state\n");
 			dev->wakeup.flags.valid = 0;
-			return_VALUE(-1);
+			return -1;
 		}
 	}
 
@@ -305,7 +299,7 @@
 		ret = -1;
 	}
 
-	return_VALUE(ret);
+	return ret;
 }
 
 /*
@@ -321,10 +315,9 @@
 	int i;
 	int ret = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_disable_wakeup_device_power");
 
 	if (!dev || !dev->wakeup.flags.valid)
-		return_VALUE(-1);
+		return -1;
 
 	arg.integer.value = 0;
 	/* Execute PSW */
@@ -332,7 +325,7 @@
 	if (ACPI_FAILURE(status) && (status != AE_NOT_FOUND)) {
 		printk(KERN_ERR PREFIX "Evaluate _PSW\n");
 		dev->wakeup.flags.valid = 0;
-		return_VALUE(-1);
+		return -1;
 	}
 
 	/* Close power resource */
@@ -341,11 +334,11 @@
 		if (ret) {
 			printk(KERN_ERR PREFIX "Transition power state\n");
 			dev->wakeup.flags.valid = 0;
-			return_VALUE(-1);
+			return -1;
 		}
 	}
 
-	return_VALUE(ret);
+	return ret;
 }
 
 /* --------------------------------------------------------------------------
@@ -359,10 +352,9 @@
 	int list_state = 0;
 	int i = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_power_get_inferred_state");
 
 	if (!device)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	device->power.state = ACPI_STATE_UNKNOWN;
 
@@ -377,17 +369,17 @@
 
 		result = acpi_power_get_list_state(list, &list_state);
 		if (result)
-			return_VALUE(result);
+			return result;
 
 		if (list_state == ACPI_POWER_RESOURCE_STATE_ON) {
 			device->power.state = i;
-			return_VALUE(0);
+			return 0;
 		}
 	}
 
 	device->power.state = ACPI_STATE_D3;
 
-	return_VALUE(0);
+	return 0;
 }
 
 int acpi_power_transition(struct acpi_device *device, int state)
@@ -397,14 +389,13 @@
 	struct acpi_handle_list *tl = NULL;	/* Target Resources */
 	int i = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_power_transition");
 
 	if (!device || (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3))
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if ((device->power.state < ACPI_STATE_D0)
 	    || (device->power.state > ACPI_STATE_D3))
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	cl = &device->power.states[device->power.state].resources;
 	tl = &device->power.states[state].resources;
@@ -444,7 +435,7 @@
 		printk(KERN_WARNING PREFIX "Transitioning device [%s] to D%d\n",
 			      device->pnp.bus_id, state);
 
-	return_VALUE(result);
+	return result;
 }
 
 /* --------------------------------------------------------------------------
@@ -457,7 +448,6 @@
 {
 	struct acpi_power_resource *resource = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_power_seq_show");
 
 	resource = (struct acpi_power_resource *)seq->private;
 
@@ -484,7 +474,7 @@
 		   resource->order, resource->references);
 
       end:
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_power_open_fs(struct inode *inode, struct file *file)
@@ -496,34 +486,32 @@
 {
 	struct proc_dir_entry *entry = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_power_add_fs");
 
 	if (!device)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (!acpi_device_dir(device)) {
 		acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
 						     acpi_power_dir);
 		if (!acpi_device_dir(device))
-			return_VALUE(-ENODEV);
+			return -ENODEV;
 	}
 
 	/* 'status' [R] */
 	entry = create_proc_entry(ACPI_POWER_FILE_STATUS,
 				  S_IRUGO, acpi_device_dir(device));
 	if (!entry)
-		return_VALUE(-EIO);
+		return -EIO;
 	else {
 		entry->proc_fops = &acpi_power_fops;
 		entry->data = acpi_driver_data(device);
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_power_remove_fs(struct acpi_device *device)
 {
-	ACPI_FUNCTION_TRACE("acpi_power_remove_fs");
 
 	if (acpi_device_dir(device)) {
 		remove_proc_entry(ACPI_POWER_FILE_STATUS,
@@ -532,7 +520,7 @@
 		acpi_device_dir(device) = NULL;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 /* --------------------------------------------------------------------------
@@ -547,14 +535,13 @@
 	union acpi_object acpi_object;
 	struct acpi_buffer buffer = { sizeof(acpi_object), &acpi_object };
 
-	ACPI_FUNCTION_TRACE("acpi_power_add");
 
 	if (!device)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	resource = kmalloc(sizeof(struct acpi_power_resource), GFP_KERNEL);
 	if (!resource)
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 	memset(resource, 0, sizeof(struct acpi_power_resource));
 
 	resource->handle = device->handle;
@@ -599,17 +586,16 @@
 	if (result)
 		kfree(resource);
 
-	return_VALUE(result);
+	return result;
 }
 
 static int acpi_power_remove(struct acpi_device *device, int type)
 {
 	struct acpi_power_resource *resource = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_power_remove");
 
 	if (!device || !acpi_driver_data(device))
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	resource = (struct acpi_power_resource *)acpi_driver_data(device);
 
@@ -617,31 +603,30 @@
 
 	kfree(resource);
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int __init acpi_power_init(void)
 {
 	int result = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_power_init");
 
 	if (acpi_disabled)
-		return_VALUE(0);
+		return 0;
 
 	INIT_LIST_HEAD(&acpi_power_resource_list);
 
 	acpi_power_dir = proc_mkdir(ACPI_POWER_CLASS, acpi_root_dir);
 	if (!acpi_power_dir)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	result = acpi_bus_register_driver(&acpi_power_driver);
 	if (result < 0) {
 		remove_proc_entry(ACPI_POWER_CLASS, acpi_root_dir);
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 subsys_initcall(acpi_power_init);
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index 80bbf18..5267432 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -122,10 +122,9 @@
 	u8 value1 = 0;
 	u8 value2 = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_errata_piix4");
 
 	if (!dev)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	/*
 	 * Note that 'dev' references the PIIX4 ACPI Controller.
@@ -218,7 +217,7 @@
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "Type-F DMA livelock erratum (C3 disabled)\n"));
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_processor_errata(struct acpi_processor *pr)
@@ -226,10 +225,9 @@
 	int result = 0;
 	struct pci_dev *dev = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_errata");
 
 	if (!pr)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	/*
 	 * PIIX4
@@ -242,7 +240,7 @@
 		pci_dev_put(dev);
 	}
 
-	return_VALUE(result);
+	return result;
 }
 
 /* --------------------------------------------------------------------------
@@ -258,10 +256,9 @@
 	struct acpi_object_list *pdc_in = pr->pdc;
 	acpi_status status = AE_OK;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_set_pdc");
 
 	if (!pdc_in)
-		return_VALUE(status);
+		return status;
 
 	status = acpi_evaluate_object(pr->handle, "_PDC", pdc_in, NULL);
 
@@ -269,7 +266,7 @@
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 		    "Could not evaluate _PDC, using legacy perf. control...\n"));
 
-	return_VALUE(status);
+	return status;
 }
 
 /* --------------------------------------------------------------------------
@@ -282,7 +279,6 @@
 {
 	struct acpi_processor *pr = (struct acpi_processor *)seq->private;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_info_seq_show");
 
 	if (!pr)
 		goto end;
@@ -301,7 +297,7 @@
 		   pr->flags.limit ? "yes" : "no");
 
       end:
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_processor_info_open_fs(struct inode *inode, struct file *file)
@@ -314,13 +310,12 @@
 {
 	struct proc_dir_entry *entry = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_add_fs");
 
 	if (!acpi_device_dir(device)) {
 		acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
 						     acpi_processor_dir);
 		if (!acpi_device_dir(device))
-			return_VALUE(-ENODEV);
+			return -ENODEV;
 	}
 	acpi_device_dir(device)->owner = THIS_MODULE;
 
@@ -328,7 +323,7 @@
 	entry = create_proc_entry(ACPI_PROCESSOR_FILE_INFO,
 				  S_IRUGO, acpi_device_dir(device));
 	if (!entry)
-		return_VALUE(-EIO);
+		return -EIO;
 	else {
 		entry->proc_fops = &acpi_processor_info_fops;
 		entry->data = acpi_driver_data(device);
@@ -340,7 +335,7 @@
 				  S_IFREG | S_IRUGO | S_IWUSR,
 				  acpi_device_dir(device));
 	if (!entry)
-		return_VALUE(-EIO);
+		return -EIO;
 	else {
 		entry->proc_fops = &acpi_processor_throttling_fops;
 		entry->data = acpi_driver_data(device);
@@ -352,19 +347,18 @@
 				  S_IFREG | S_IRUGO | S_IWUSR,
 				  acpi_device_dir(device));
 	if (!entry)
-		return_VALUE( -EIO);
+		return -EIO;
 	else {
 		entry->proc_fops = &acpi_processor_limit_fops;
 		entry->data = acpi_driver_data(device);
 		entry->owner = THIS_MODULE;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_processor_remove_fs(struct acpi_device *device)
 {
-	ACPI_FUNCTION_TRACE("acpi_processor_remove_fs");
 
 	if (acpi_device_dir(device)) {
 		remove_proc_entry(ACPI_PROCESSOR_FILE_INFO,
@@ -377,7 +371,7 @@
 		acpi_device_dir(device) = NULL;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 /* Use the acpiid in MADT to map cpus in case of SMP */
@@ -424,10 +418,9 @@
 	int cpu_index;
 	static int cpu0_initialized;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_get_info");
 
 	if (!pr)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (num_online_cpus() > 1)
 		errata.smp = TRUE;
@@ -454,7 +447,7 @@
 	status = acpi_evaluate_object(pr->handle, NULL, NULL, &buffer);
 	if (ACPI_FAILURE(status)) {
 		printk(KERN_ERR PREFIX "Evaluating processor object\n");
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
 	/*
@@ -486,7 +479,7 @@
 			printk(KERN_ERR PREFIX
 				    "Getting cpuindex for acpiid 0x%x\n",
 				    pr->acpi_id);
-			return_VALUE(-ENODEV);
+			return -ENODEV;
 		}
 	}
 
@@ -521,7 +514,7 @@
 	acpi_processor_get_throttling_info(pr);
 	acpi_processor_get_limit_info(pr);
 
-	return_VALUE(0);
+	return 0;
 }
 
 static void *processor_device_array[NR_CPUS];
@@ -532,14 +525,13 @@
 	acpi_status status = AE_OK;
 	struct acpi_processor *pr;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_start");
 
 	pr = acpi_driver_data(device);
 
 	result = acpi_processor_get_info(pr);
 	if (result) {
 		/* Processor is physically not present */
-		return_VALUE(0);
+		return 0;
 	}
 
 	BUG_ON((pr->id >= NR_CPUS) || (pr->id < 0));
@@ -553,7 +545,7 @@
 	    processor_device_array[pr->id] != (void *)device) {
 		printk(KERN_WARNING "BIOS reported wrong ACPI id"
 			"for the processor\n");
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 	processor_device_array[pr->id] = (void *)device;
 
@@ -581,7 +573,7 @@
 
       end:
 
-	return_VALUE(result);
+	return result;
 }
 
 static void acpi_processor_notify(acpi_handle handle, u32 event, void *data)
@@ -589,13 +581,12 @@
 	struct acpi_processor *pr = (struct acpi_processor *)data;
 	struct acpi_device *device = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_notify");
 
 	if (!pr)
-		return_VOID;
+		return;
 
 	if (acpi_bus_get_device(pr->handle, &device))
-		return_VOID;
+		return;
 
 	switch (event) {
 	case ACPI_PROCESSOR_NOTIFY_PERFORMANCE:
@@ -613,21 +604,20 @@
 		break;
 	}
 
-	return_VOID;
+	return;
 }
 
 static int acpi_processor_add(struct acpi_device *device)
 {
 	struct acpi_processor *pr = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_add");
 
 	if (!device)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	pr = kmalloc(sizeof(struct acpi_processor), GFP_KERNEL);
 	if (!pr)
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 	memset(pr, 0, sizeof(struct acpi_processor));
 
 	pr->handle = device->handle;
@@ -635,7 +625,7 @@
 	strcpy(acpi_device_class(device), ACPI_PROCESSOR_CLASS);
 	acpi_driver_data(device) = pr;
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_processor_remove(struct acpi_device *device, int type)
@@ -643,21 +633,20 @@
 	acpi_status status = AE_OK;
 	struct acpi_processor *pr = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_remove");
 
 	if (!device || !acpi_driver_data(device))
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	pr = (struct acpi_processor *)acpi_driver_data(device);
 
 	if (pr->id >= NR_CPUS) {
 		kfree(pr);
-		return_VALUE(0);
+		return 0;
 	}
 
 	if (type == ACPI_BUS_REMOVAL_EJECT) {
 		if (acpi_processor_handle_eject(pr))
-			return_VALUE(-EINVAL);
+			return -EINVAL;
 	}
 
 	acpi_processor_power_exit(pr, device);
@@ -671,7 +660,7 @@
 
 	kfree(pr);
 
-	return_VALUE(0);
+	return 0;
 }
 
 #ifdef CONFIG_ACPI_HOTPLUG_CPU
@@ -686,14 +675,13 @@
 	acpi_status status;
 	unsigned long sta = 0;
 
-	ACPI_FUNCTION_TRACE("is_processor_present");
 
 	status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);
 	if (ACPI_FAILURE(status) || !(sta & ACPI_STA_PRESENT)) {
 		ACPI_EXCEPTION((AE_INFO, status, "Processor Device is not present"));
-		return_VALUE(0);
+		return 0;
 	}
-	return_VALUE(1);
+	return 1;
 }
 
 static
@@ -703,30 +691,29 @@
 	struct acpi_device *pdev;
 	struct acpi_processor *pr;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_device_add");
 
 	if (acpi_get_parent(handle, &phandle)) {
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
 	if (acpi_bus_get_device(phandle, &pdev)) {
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
 	if (acpi_bus_add(device, pdev, handle, ACPI_BUS_TYPE_PROCESSOR)) {
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
 	acpi_bus_start(*device);
 
 	pr = acpi_driver_data(*device);
 	if (!pr)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	if ((pr->id >= 0) && (pr->id < NR_CPUS)) {
 		kobject_uevent(&(*device)->kobj, KOBJ_ONLINE);
 	}
-	return_VALUE(0);
+	return 0;
 }
 
 static void
@@ -736,7 +723,6 @@
 	struct acpi_device *device = NULL;
 	int result;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_hotplug_notify");
 
 	switch (event) {
 	case ACPI_NOTIFY_BUS_CHECK:
@@ -788,7 +774,7 @@
 		if (!pr) {
 			printk(KERN_ERR PREFIX
 				    "Driver data is NULL, dropping EJECT\n");
-			return_VOID;
+			return;
 		}
 
 		if ((pr->id < NR_CPUS) && (cpu_present(pr->id)))
@@ -800,7 +786,7 @@
 		break;
 	}
 
-	return_VOID;
+	return;
 }
 
 static acpi_status
@@ -839,21 +825,20 @@
 
 static acpi_status acpi_processor_hotadd_init(acpi_handle handle, int *p_cpu)
 {
-	ACPI_FUNCTION_TRACE("acpi_processor_hotadd_init");
 
 	if (!is_processor_present(handle)) {
-		return_VALUE(AE_ERROR);
+		return AE_ERROR;
 	}
 
 	if (acpi_map_lsapic(handle, p_cpu))
-		return_VALUE(AE_ERROR);
+		return AE_ERROR;
 
 	if (arch_register_cpu(*p_cpu)) {
 		acpi_unmap_lsapic(*p_cpu);
-		return_VALUE(AE_ERROR);
+		return AE_ERROR;
 	}
 
-	return_VALUE(AE_OK);
+	return AE_OK;
 }
 
 static int acpi_processor_handle_eject(struct acpi_processor *pr)
@@ -910,20 +895,19 @@
 {
 	int result = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_init");
 
 	memset(&processors, 0, sizeof(processors));
 	memset(&errata, 0, sizeof(errata));
 
 	acpi_processor_dir = proc_mkdir(ACPI_PROCESSOR_CLASS, acpi_root_dir);
 	if (!acpi_processor_dir)
-		return_VALUE(0);
+		return 0;
 	acpi_processor_dir->owner = THIS_MODULE;
 
 	result = acpi_bus_register_driver(&acpi_processor_driver);
 	if (result < 0) {
 		remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir);
-		return_VALUE(0);
+		return 0;
 	}
 
 	acpi_processor_install_hotplug_notify();
@@ -932,12 +916,11 @@
 
 	acpi_processor_ppc_init();
 
-	return_VALUE(0);
+	return 0;
 }
 
 static void __exit acpi_processor_exit(void)
 {
-	ACPI_FUNCTION_TRACE("acpi_processor_exit");
 
 	acpi_processor_ppc_exit();
 
@@ -949,7 +932,7 @@
 
 	remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir);
 
-	return_VOID;
+	return;
 }
 
 module_init(acpi_processor_init);
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 786851d..89d3fd4 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -517,10 +517,9 @@
 	struct acpi_processor_cx *higher = NULL;
 	struct acpi_processor_cx *cx;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_set_power_policy");
 
 	if (!pr)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	/*
 	 * This function sets the default Cx state policy (OS idle handler).
@@ -544,7 +543,7 @@
 	}
 
 	if (!state_is_set)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	/* demotion */
 	for (i = 1; i < ACPI_PROCESSOR_MAX_POWER; i++) {
@@ -583,18 +582,17 @@
 		higher = cx;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_processor_get_power_info_fadt(struct acpi_processor *pr)
 {
-	ACPI_FUNCTION_TRACE("acpi_processor_get_power_info_fadt");
 
 	if (!pr)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (!pr->pblk)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	/* if info is obtained from pblk/fadt, type equals state */
 	pr->power.states[ACPI_STATE_C2].type = ACPI_STATE_C2;
@@ -606,7 +604,7 @@
 	 * an SMP system. 
 	 */
 	if ((num_online_cpus() > 1) && !acpi_fadt.plvl2_up)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 #endif
 
 	/* determine C2 and C3 address from pblk */
@@ -622,12 +620,11 @@
 			  pr->power.states[ACPI_STATE_C2].address,
 			  pr->power.states[ACPI_STATE_C3].address));
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_processor_get_power_info_default_c1(struct acpi_processor *pr)
 {
-	ACPI_FUNCTION_TRACE("acpi_processor_get_power_info_default_c1");
 
 	/* Zero initialize all the C-states info. */
 	memset(pr->power.states, 0, sizeof(pr->power.states));
@@ -640,7 +637,7 @@
 	pr->power.states[ACPI_STATE_C0].valid = 1;
 	pr->power.states[ACPI_STATE_C1].valid = 1;
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_processor_get_power_info_cst(struct acpi_processor *pr)
@@ -652,10 +649,9 @@
 	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
 	union acpi_object *cst;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_get_power_info_cst");
 
 	if (nocst)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	current_count = 1;
 
@@ -667,7 +663,7 @@
 	status = acpi_evaluate_object(pr->handle, "_CST", NULL, &buffer);
 	if (ACPI_FAILURE(status)) {
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No _CST, giving up\n"));
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
 	cst = (union acpi_object *)buffer.pointer;
@@ -773,15 +769,14 @@
       end:
 	acpi_os_free(buffer.pointer);
 
-	return_VALUE(status);
+	return status;
 }
 
 static void acpi_processor_power_verify_c2(struct acpi_processor_cx *cx)
 {
-	ACPI_FUNCTION_TRACE("acpi_processor_get_power_verify_c2");
 
 	if (!cx->address)
-		return_VOID;
+		return;
 
 	/*
 	 * C2 latency must be less than or equal to 100
@@ -790,7 +785,7 @@
 	else if (cx->latency > ACPI_PROCESSOR_MAX_C2_LATENCY) {
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "latency too large [%d]\n", cx->latency));
-		return_VOID;
+		return;
 	}
 
 	/*
@@ -800,7 +795,7 @@
 	cx->valid = 1;
 	cx->latency_ticks = US_TO_PM_TIMER_TICKS(cx->latency);
 
-	return_VOID;
+	return;
 }
 
 static void acpi_processor_power_verify_c3(struct acpi_processor *pr,
@@ -808,10 +803,9 @@
 {
 	static int bm_check_flag;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_get_power_verify_c3");
 
 	if (!cx->address)
-		return_VOID;
+		return;
 
 	/*
 	 * C3 latency must be less than or equal to 1000
@@ -820,7 +814,7 @@
 	else if (cx->latency > ACPI_PROCESSOR_MAX_C3_LATENCY) {
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "latency too large [%d]\n", cx->latency));
-		return_VOID;
+		return;
 	}
 
 	/*
@@ -833,7 +827,7 @@
 	else if (errata.piix4.fdma) {
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "C3 not supported on PIIX4 with Type-F DMA\n"));
-		return_VOID;
+		return;
 	}
 
 	/* All the logic here assumes flags.bm_check is same across all CPUs */
@@ -850,7 +844,7 @@
 		if (!pr->flags.bm_control) {
 			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 					  "C3 support requires bus mastering control\n"));
-			return_VOID;
+			return;
 		}
 	} else {
 		/*
@@ -861,7 +855,7 @@
 			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 					  "Cache invalidation should work properly"
 					  " for C3 to be enabled on SMP systems\n"));
-			return_VOID;
+			return;
 		}
 		acpi_set_register(ACPI_BITREG_BUS_MASTER_RLD,
 				  0, ACPI_MTX_DO_NOT_LOCK);
@@ -876,7 +870,7 @@
 	cx->valid = 1;
 	cx->latency_ticks = US_TO_PM_TIMER_TICKS(cx->latency);
 
-	return_VOID;
+	return;
 }
 
 static int acpi_processor_power_verify(struct acpi_processor *pr)
@@ -935,7 +929,6 @@
 	unsigned int i;
 	int result;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_get_power_info");
 
 	/* NOTE: the idle thread may not be running while calling
 	 * this function */
@@ -958,7 +951,7 @@
 	 */
 	result = acpi_processor_set_power_policy(pr);
 	if (result)
-		return_VALUE(result);
+		return result;
 
 	/*
 	 * if one state of type C2 or C3 is available, mark this
@@ -972,24 +965,23 @@
 		}
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 int acpi_processor_cst_has_changed(struct acpi_processor *pr)
 {
 	int result = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_cst_has_changed");
 
 	if (!pr)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (nocst) {
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
 	if (!pr->flags.power_setup_done)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	/* Fall back to the default idle loop */
 	pm_idle = pm_idle_save;
@@ -1000,7 +992,7 @@
 	if ((pr->flags.power == 1) && (pr->flags.power_setup_done))
 		pm_idle = acpi_processor_idle;
 
-	return_VALUE(result);
+	return result;
 }
 
 /* proc interface */
@@ -1010,7 +1002,6 @@
 	struct acpi_processor *pr = (struct acpi_processor *)seq->private;
 	unsigned int i;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_power_seq_show");
 
 	if (!pr)
 		goto end;
@@ -1068,7 +1059,7 @@
 	}
 
       end:
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_processor_power_open_fs(struct inode *inode, struct file *file)
@@ -1092,7 +1083,6 @@
 	struct proc_dir_entry *entry = NULL;
 	unsigned int i;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_power_init");
 
 	if (!first_run) {
 		dmi_check_system(processor_power_dmi_table);
@@ -1104,7 +1094,7 @@
 	}
 
 	if (!pr)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (acpi_fadt.cst_cnt && !nocst) {
 		status =
@@ -1149,13 +1139,12 @@
 
 	pr->flags.power_setup_done = 1;
 
-	return_VALUE(0);
+	return 0;
 }
 
 int acpi_processor_power_exit(struct acpi_processor *pr,
 			      struct acpi_device *device)
 {
-	ACPI_FUNCTION_TRACE("acpi_processor_power_exit");
 
 	pr->flags.power_setup_done = 0;
 
@@ -1175,5 +1164,5 @@
 		cpu_idle_wait();
 	}
 
-	return_VALUE(0);
+	return 0;
 }
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index 5c24ac4..14a00e5 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -108,10 +108,9 @@
 	acpi_status status = 0;
 	unsigned long ppc = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_get_platform_limit");
 
 	if (!pr)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	/*
 	 * _PPC indicates the maximum state currently supported by the platform
@@ -124,12 +123,12 @@
 
 	if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
 		ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PPC"));
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
 	pr->performance_platform_limit = (int)ppc;
 
-	return_VALUE(0);
+	return 0;
 }
 
 int acpi_processor_ppc_has_changed(struct acpi_processor *pr)
@@ -168,12 +167,11 @@
 	union acpi_object *pct = NULL;
 	union acpi_object obj = { 0 };
 
-	ACPI_FUNCTION_TRACE("acpi_processor_get_performance_control");
 
 	status = acpi_evaluate_object(pr->handle, "_PCT", NULL, &buffer);
 	if (ACPI_FAILURE(status)) {
 		ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PCT"));
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
 	pct = (union acpi_object *)buffer.pointer;
@@ -220,7 +218,7 @@
       end:
 	acpi_os_free(buffer.pointer);
 
-	return_VALUE(result);
+	return result;
 }
 
 static int acpi_processor_get_performance_states(struct acpi_processor *pr)
@@ -233,12 +231,11 @@
 	union acpi_object *pss = NULL;
 	int i;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_get_performance_states");
 
 	status = acpi_evaluate_object(pr->handle, "_PSS", NULL, &buffer);
 	if (ACPI_FAILURE(status)) {
 		ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PSS"));
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
 	pss = (union acpi_object *)buffer.pointer;
@@ -299,7 +296,7 @@
       end:
 	acpi_os_free(buffer.pointer);
 
-	return_VALUE(result);
+	return result;
 }
 
 static int acpi_processor_get_performance_info(struct acpi_processor *pr)
@@ -308,31 +305,30 @@
 	acpi_status status = AE_OK;
 	acpi_handle handle = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_get_performance_info");
 
 	if (!pr || !pr->performance || !pr->handle)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	status = acpi_get_handle(pr->handle, "_PCT", &handle);
 	if (ACPI_FAILURE(status)) {
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "ACPI-based processor performance control unavailable\n"));
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
 	result = acpi_processor_get_performance_control(pr);
 	if (result)
-		return_VALUE(result);
+		return result;
 
 	result = acpi_processor_get_performance_states(pr);
 	if (result)
-		return_VALUE(result);
+		return result;
 
 	result = acpi_processor_get_platform_limit(pr);
 	if (result)
-		return_VALUE(result);
+		return result;
 
-	return_VALUE(0);
+	return 0;
 }
 
 int acpi_processor_notify_smm(struct module *calling_module)
@@ -340,13 +336,12 @@
 	acpi_status status;
 	static int is_done = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_notify_smm");
 
 	if (!(acpi_processor_ppc_status & PPC_REGISTERED))
-		return_VALUE(-EBUSY);
+		return -EBUSY;
 
 	if (!try_module_get(calling_module))
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	/* is_done is set to negative if an error occured,
 	 * and to postitive if _no_ error occured, but SMM
@@ -355,10 +350,10 @@
 	 */
 	if (is_done > 0) {
 		module_put(calling_module);
-		return_VALUE(0);
+		return 0;
 	} else if (is_done < 0) {
 		module_put(calling_module);
-		return_VALUE(is_done);
+		return is_done;
 	}
 
 	is_done = -EIO;
@@ -367,7 +362,7 @@
 	if ((!acpi_fadt.smi_cmd) || (!acpi_fadt.pstate_cnt)) {
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No SMI port or pstate_cnt\n"));
 		module_put(calling_module);
-		return_VALUE(0);
+		return 0;
 	}
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
@@ -389,7 +384,7 @@
 				"smi_cmd [0x%x]", acpi_fadt.pstate_cnt,
 				acpi_fadt.smi_cmd));
 		module_put(calling_module);
-		return_VALUE(status);
+		return status;
 	}
 
 	/* Success. If there's no _PPC, we need to fear nothing, so
@@ -399,7 +394,7 @@
 	if (!(acpi_processor_ppc_status & PPC_IN_USE))
 		module_put(calling_module);
 
-	return_VALUE(0);
+	return 0;
 }
 
 EXPORT_SYMBOL(acpi_processor_notify_smm);
@@ -420,7 +415,6 @@
 	struct acpi_processor *pr = (struct acpi_processor *)seq->private;
 	int i;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_perf_seq_show");
 
 	if (!pr)
 		goto end;
@@ -444,7 +438,7 @@
 			   (u32) pr->performance->states[i].transition_latency);
 
       end:
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_processor_perf_open_fs(struct inode *inode, struct file *file)
@@ -466,23 +460,22 @@
 	unsigned int new_state = 0;
 	struct cpufreq_policy policy;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_write_performance");
 
 	if (!pr || (count > sizeof(state_string) - 1))
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	perf = pr->performance;
 	if (!perf)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (copy_from_user(state_string, buffer, count))
-		return_VALUE(-EFAULT);
+		return -EFAULT;
 
 	state_string[count] = '\0';
 	new_state = simple_strtoul(state_string, NULL, 0);
 
 	if (new_state >= perf->state_count)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	cpufreq_get_policy(&policy, pr->id);
 
@@ -492,9 +485,9 @@
 
 	result = cpufreq_set_policy(&policy);
 	if (result)
-		return_VALUE(result);
+		return result;
 
-	return_VALUE(count);
+	return count;
 }
 
 static void acpi_cpufreq_add_file(struct acpi_processor *pr)
@@ -502,10 +495,9 @@
 	struct proc_dir_entry *entry = NULL;
 	struct acpi_device *device = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_cpufreq_addfile");
 
 	if (acpi_bus_get_device(pr->handle, &device))
-		return_VOID;
+		return;
 
 	/* add file 'performance' [R/W] */
 	entry = create_proc_entry(ACPI_PROCESSOR_FILE_PERFORMANCE,
@@ -517,23 +509,22 @@
 		entry->data = acpi_driver_data(device);
 		entry->owner = THIS_MODULE;
 	}
-	return_VOID;
+	return;
 }
 
 static void acpi_cpufreq_remove_file(struct acpi_processor *pr)
 {
 	struct acpi_device *device = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_cpufreq_addfile");
 
 	if (acpi_bus_get_device(pr->handle, &device))
-		return_VOID;
+		return;
 
 	/* remove file 'performance' */
 	remove_proc_entry(ACPI_PROCESSOR_FILE_PERFORMANCE,
 			  acpi_device_dir(device));
 
-	return_VOID;
+	return;
 }
 
 #else
@@ -777,22 +768,21 @@
 {
 	struct acpi_processor *pr;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_register_performance");
 
 	if (!(acpi_processor_ppc_status & PPC_REGISTERED))
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	mutex_lock(&performance_mutex);
 
 	pr = processors[cpu];
 	if (!pr) {
 		mutex_unlock(&performance_mutex);
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
 	if (pr->performance) {
 		mutex_unlock(&performance_mutex);
-		return_VALUE(-EBUSY);
+		return -EBUSY;
 	}
 
 	WARN_ON(!performance);
@@ -802,13 +792,13 @@
 	if (acpi_processor_get_performance_info(pr)) {
 		pr->performance = NULL;
 		mutex_unlock(&performance_mutex);
-		return_VALUE(-EIO);
+		return -EIO;
 	}
 
 	acpi_cpufreq_add_file(pr);
 
 	mutex_unlock(&performance_mutex);
-	return_VALUE(0);
+	return 0;
 }
 
 EXPORT_SYMBOL(acpi_processor_register_performance);
@@ -819,14 +809,13 @@
 {
 	struct acpi_processor *pr;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_unregister_performance");
 
 	mutex_lock(&performance_mutex);
 
 	pr = processors[cpu];
 	if (!pr) {
 		mutex_unlock(&performance_mutex);
-		return_VOID;
+		return;
 	}
 
 	if (pr->performance)
@@ -837,7 +826,7 @@
 
 	mutex_unlock(&performance_mutex);
 
-	return_VOID;
+	return;
 }
 
 EXPORT_SYMBOL(acpi_processor_unregister_performance);
diff --git a/drivers/acpi/processor_thermal.c b/drivers/acpi/processor_thermal.c
index 0f86d02..ef5e0f6 100644
--- a/drivers/acpi/processor_thermal.c
+++ b/drivers/acpi/processor_thermal.c
@@ -54,13 +54,12 @@
 	u16 px = 0;
 	u16 tx = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_apply_limit");
 
 	if (!pr)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (!pr->flags.limit)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	if (pr->flags.throttling) {
 		if (pr->limit.user.tx > tx)
@@ -84,7 +83,7 @@
 	if (result)
 		printk(KERN_ERR PREFIX "Unable to set limit\n");
 
-	return_VALUE(result);
+	return result;
 }
 
 #ifdef CONFIG_CPU_FREQ
@@ -200,19 +199,18 @@
 	struct acpi_device *device = NULL;
 	int tx = 0, max_tx_px = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_set_thermal_limit");
 
 	if ((type < ACPI_PROCESSOR_LIMIT_NONE)
 	    || (type > ACPI_PROCESSOR_LIMIT_DECREMENT))
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	result = acpi_bus_get_device(handle, &device);
 	if (result)
-		return_VALUE(result);
+		return result;
 
 	pr = (struct acpi_processor *)acpi_driver_data(device);
 	if (!pr)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	/* Thermal limits are always relative to the current Px/Tx state. */
 	if (pr->flags.throttling)
@@ -296,22 +294,21 @@
 	} else
 		result = 0;
 	if (max_tx_px)
-		return_VALUE(1);
+		return 1;
 	else
-		return_VALUE(result);
+		return result;
 }
 
 int acpi_processor_get_limit_info(struct acpi_processor *pr)
 {
-	ACPI_FUNCTION_TRACE("acpi_processor_get_limit_info");
 
 	if (!pr)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (pr->flags.throttling)
 		pr->flags.limit = 1;
 
-	return_VALUE(0);
+	return 0;
 }
 
 /* /proc interface */
@@ -320,7 +317,6 @@
 {
 	struct acpi_processor *pr = (struct acpi_processor *)seq->private;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_limit_seq_show");
 
 	if (!pr)
 		goto end;
@@ -338,7 +334,7 @@
 		   pr->limit.thermal.px, pr->limit.thermal.tx);
 
       end:
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_processor_limit_open_fs(struct inode *inode, struct file *file)
@@ -358,34 +354,33 @@
 	int px = 0;
 	int tx = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_write_limit");
 
 	if (!pr || (count > sizeof(limit_string) - 1)) {
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 	}
 
 	if (copy_from_user(limit_string, buffer, count)) {
-		return_VALUE(-EFAULT);
+		return -EFAULT;
 	}
 
 	limit_string[count] = '\0';
 
 	if (sscanf(limit_string, "%d:%d", &px, &tx) != 2) {
 		printk(KERN_ERR PREFIX "Invalid data format\n");
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 	}
 
 	if (pr->flags.throttling) {
 		if ((tx < 0) || (tx > (pr->throttling.state_count - 1))) {
 			printk(KERN_ERR PREFIX "Invalid tx\n");
-			return_VALUE(-EINVAL);
+			return -EINVAL;
 		}
 		pr->limit.user.tx = tx;
 	}
 
 	result = acpi_processor_apply_limit(pr);
 
-	return_VALUE(count);
+	return count;
 }
 
 struct file_operations acpi_processor_limit_fops = {
diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c
index 2de40bd..d044ec5 100644
--- a/drivers/acpi/processor_throttling.c
+++ b/drivers/acpi/processor_throttling.c
@@ -55,13 +55,12 @@
 	u32 duty_mask = 0;
 	u32 duty_value = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_get_throttling");
 
 	if (!pr)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (!pr->flags.throttling)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	pr->throttling.state = 0;
 
@@ -93,7 +92,7 @@
 			  "Throttling state is T%d (%d%% throttling applied)\n",
 			  state, pr->throttling.states[state].performance));
 
-	return_VALUE(0);
+	return 0;
 }
 
 int acpi_processor_set_throttling(struct acpi_processor *pr, int state)
@@ -102,19 +101,18 @@
 	u32 duty_mask = 0;
 	u32 duty_value = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_set_throttling");
 
 	if (!pr)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if ((state < 0) || (state > (pr->throttling.state_count - 1)))
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (!pr->flags.throttling)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	if (state == pr->throttling.state)
-		return_VALUE(0);
+		return 0;
 
 	/*
 	 * Calculate the duty_value and duty_mask.
@@ -165,7 +163,7 @@
 			  (pr->throttling.states[state].performance ? pr->
 			   throttling.states[state].performance / 10 : 0)));
 
-	return_VALUE(0);
+	return 0;
 }
 
 int acpi_processor_get_throttling_info(struct acpi_processor *pr)
@@ -174,7 +172,6 @@
 	int step = 0;
 	int i = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_get_throttling_info");
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 			  "pblk_address[0x%08x] duty_offset[%d] duty_width[%d]\n",
@@ -183,21 +180,21 @@
 			  pr->throttling.duty_width));
 
 	if (!pr)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	/* TBD: Support ACPI 2.0 objects */
 
 	if (!pr->throttling.address) {
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No throttling register\n"));
-		return_VALUE(0);
+		return 0;
 	} else if (!pr->throttling.duty_width) {
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No throttling states\n"));
-		return_VALUE(0);
+		return 0;
 	}
 	/* TBD: Support duty_cycle values that span bit 4. */
 	else if ((pr->throttling.duty_offset + pr->throttling.duty_width) > 4) {
 		printk(KERN_WARNING PREFIX "duty_cycle spans bit 4\n");
-		return_VALUE(0);
+		return 0;
 	}
 
 	/*
@@ -208,7 +205,7 @@
 	if (errata.piix4.throttle) {
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "Throttling not supported on PIIX4 A- or B-step\n"));
-		return_VALUE(0);
+		return 0;
 	}
 
 	pr->throttling.state_count = 1 << acpi_fadt.duty_width;
@@ -254,7 +251,7 @@
 	if (result)
 		pr->flags.throttling = 0;
 
-	return_VALUE(result);
+	return result;
 }
 
 /* proc interface */
@@ -266,7 +263,6 @@
 	int i = 0;
 	int result = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_processor_throttling_seq_show");
 
 	if (!pr)
 		goto end;
@@ -296,7 +292,7 @@
 			    throttling.states[i].performance / 10 : 0));
 
       end:
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_processor_throttling_open_fs(struct inode *inode,
@@ -315,13 +311,12 @@
 	struct acpi_processor *pr = (struct acpi_processor *)m->private;
 	char state_string[12] = { '\0' };
 
-	ACPI_FUNCTION_TRACE("acpi_processor_write_throttling");
 
 	if (!pr || (count > sizeof(state_string) - 1))
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (copy_from_user(state_string, buffer, count))
-		return_VALUE(-EFAULT);
+		return -EFAULT;
 
 	state_string[count] = '\0';
 
@@ -329,9 +324,9 @@
 					       simple_strtoul(state_string,
 							      NULL, 0));
 	if (result)
-		return_VALUE(result);
+		return result;
 
-	return_VALUE(count);
+	return count;
 }
 
 struct file_operations acpi_processor_throttling_fops = {
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 18c8e3e..a7b1fda 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -162,11 +162,10 @@
 
 void acpi_bus_data_handler(acpi_handle handle, u32 function, void *context)
 {
-	ACPI_FUNCTION_TRACE("acpi_bus_data_handler");
 
 	/* TBD */
 
-	return_VOID;
+	return;
 }
 
 static int acpi_bus_get_power_flags(struct acpi_device *device)
@@ -175,7 +174,6 @@
 	acpi_handle handle = NULL;
 	u32 i = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_bus_get_power_flags");
 
 	/*
 	 * Power Management Flags
@@ -228,7 +226,7 @@
 
 	device->power.state = ACPI_STATE_UNKNOWN;
 
-	return_VALUE(0);
+	return 0;
 }
 
 int acpi_match_ids(struct acpi_device *device, char *ids)
@@ -306,7 +304,6 @@
 	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
 	union acpi_object *package = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_bus_get_wakeup_flags");
 
 	/* _PRW */
 	status = acpi_evaluate_object(device->handle, "_PRW", NULL, &buffer);
@@ -332,7 +329,7 @@
       end:
 	if (ACPI_FAILURE(status))
 		device->flags.wake_capable = 0;
-	return_VALUE(0);
+	return 0;
 }
 
 /* --------------------------------------------------------------------------
@@ -488,19 +485,18 @@
 {
 	int result = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_bus_driver_init");
 
 	if (!device || !driver)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (!driver->ops.add)
-		return_VALUE(-ENOSYS);
+		return -ENOSYS;
 
 	result = driver->ops.add(device);
 	if (result) {
 		device->driver = NULL;
 		acpi_driver_data(device) = NULL;
-		return_VALUE(result);
+		return result;
 	}
 
 	device->driver = driver;
@@ -512,7 +508,7 @@
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 			  "Driver successfully bound to device\n"));
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_start_single_object(struct acpi_device *device)
@@ -520,10 +516,9 @@
 	int result = 0;
 	struct acpi_driver *driver;
 
-	ACPI_FUNCTION_TRACE("acpi_start_single_object");
 
 	if (!(driver = device->driver))
-		return_VALUE(0);
+		return 0;
 
 	if (driver->ops.start) {
 		result = driver->ops.start(device);
@@ -531,14 +526,13 @@
 			driver->ops.remove(device, ACPI_BUS_REMOVAL_NORMAL);
 	}
 
-	return_VALUE(result);
+	return result;
 }
 
 static void acpi_driver_attach(struct acpi_driver *drv)
 {
 	struct list_head *node, *next;
 
-	ACPI_FUNCTION_TRACE("acpi_driver_attach");
 
 	spin_lock(&acpi_device_lock);
 	list_for_each_safe(node, next, &acpi_device_list) {
@@ -567,7 +561,6 @@
 {
 	struct list_head *node, *next;
 
-	ACPI_FUNCTION_TRACE("acpi_driver_detach");
 
 	spin_lock(&acpi_device_lock);
 	list_for_each_safe(node, next, &acpi_device_list) {
@@ -597,17 +590,16 @@
  */
 int acpi_bus_register_driver(struct acpi_driver *driver)
 {
-	ACPI_FUNCTION_TRACE("acpi_bus_register_driver");
 
 	if (acpi_disabled)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	spin_lock(&acpi_device_lock);
 	list_add_tail(&driver->node, &acpi_bus_drivers);
 	spin_unlock(&acpi_device_lock);
 	acpi_driver_attach(driver);
 
-	return_VALUE(0);
+	return 0;
 }
 
 EXPORT_SYMBOL(acpi_bus_register_driver);
@@ -645,7 +637,6 @@
 	int result = 0;
 	struct list_head *node, *next;
 
-	ACPI_FUNCTION_TRACE("acpi_bus_find_driver");
 
 	spin_lock(&acpi_device_lock);
 	list_for_each_safe(node, next, &acpi_bus_drivers) {
@@ -665,7 +656,7 @@
 	spin_unlock(&acpi_device_lock);
 
       Done:
-	return_VALUE(result);
+	return result;
 }
 
 /* --------------------------------------------------------------------------
@@ -677,7 +668,6 @@
 	acpi_status status = AE_OK;
 	acpi_handle temp = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_bus_get_flags");
 
 	/* Presence of _STA indicates 'dynamic_status' */
 	status = acpi_get_handle(device->handle, "_STA", &temp);
@@ -723,7 +713,7 @@
 
 	/* TBD: Peformance management */
 
-	return_VALUE(0);
+	return 0;
 }
 
 static void acpi_device_get_busid(struct acpi_device *device,
@@ -917,10 +907,9 @@
 	int result = 0;
 	struct acpi_driver *driver;
 
-	ACPI_FUNCTION_TRACE("acpi_bus_remove");
 
 	if (!dev)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	driver = dev->driver;
 
@@ -929,12 +918,12 @@
 		if (driver->ops.stop) {
 			result = driver->ops.stop(dev, ACPI_BUS_REMOVAL_EJECT);
 			if (result)
-				return_VALUE(result);
+				return result;
 		}
 
 		result = dev->driver->ops.remove(dev, ACPI_BUS_REMOVAL_EJECT);
 		if (result) {
-			return_VALUE(result);
+			return result;
 		}
 
 		atomic_dec(&dev->driver->references);
@@ -943,7 +932,7 @@
 	}
 
 	if (!rmdevice)
-		return_VALUE(0);
+		return 0;
 
 	if (dev->flags.bus_address) {
 		if ((dev->parent) && (dev->parent->ops.unbind))
@@ -952,7 +941,7 @@
 
 	acpi_device_unregister(dev, ACPI_BUS_REMOVAL_EJECT);
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int
@@ -962,15 +951,14 @@
 	int result = 0;
 	struct acpi_device *device = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_add_single_object");
 
 	if (!child)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	device = kmalloc(sizeof(struct acpi_device), GFP_KERNEL);
 	if (!device) {
 		printk(KERN_ERR PREFIX "Memory allocation error\n");
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 	}
 	memset(device, 0, sizeof(struct acpi_device));
 
@@ -1095,7 +1083,7 @@
 		kfree(device);
 	}
 
-	return_VALUE(result);
+	return result;
 }
 
 static int acpi_bus_scan(struct acpi_device *start, struct acpi_bus_ops *ops)
@@ -1108,10 +1096,9 @@
 	acpi_object_type type = 0;
 	u32 level = 1;
 
-	ACPI_FUNCTION_TRACE("acpi_bus_scan");
 
 	if (!start)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	parent = start;
 	phandle = start->handle;
@@ -1208,7 +1195,7 @@
 		}
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 int
@@ -1218,7 +1205,6 @@
 	int result;
 	struct acpi_bus_ops ops;
 
-	ACPI_FUNCTION_TRACE("acpi_bus_add");
 
 	result = acpi_add_single_object(child, parent, handle, type);
 	if (!result) {
@@ -1226,7 +1212,7 @@
 		ops.acpi_op_add = 1;
 		result = acpi_bus_scan(*child, &ops);
 	}
-	return_VALUE(result);
+	return result;
 }
 
 EXPORT_SYMBOL(acpi_bus_add);
@@ -1236,10 +1222,9 @@
 	int result;
 	struct acpi_bus_ops ops;
 
-	ACPI_FUNCTION_TRACE("acpi_bus_start");
 
 	if (!device)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	result = acpi_start_single_object(device);
 	if (!result) {
@@ -1247,7 +1232,7 @@
 		ops.acpi_op_start = 1;
 		result = acpi_bus_scan(device, &ops);
 	}
-	return_VALUE(result);
+	return result;
 }
 
 EXPORT_SYMBOL(acpi_bus_start);
@@ -1313,10 +1298,9 @@
 	int result = 0;
 	struct acpi_device *device = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_bus_scan_fixed");
 
 	if (!root)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	/*
 	 * Enumerate all fixed-feature devices.
@@ -1337,7 +1321,7 @@
 			result = acpi_start_single_object(device);
 	}
 
-	return_VALUE(result);
+	return result;
 }
 
 
@@ -1439,10 +1423,9 @@
 	int result;
 	struct acpi_bus_ops ops;
 
-	ACPI_FUNCTION_TRACE("acpi_scan_init");
 
 	if (acpi_disabled)
-		return_VALUE(0);
+		return 0;
 
 	kset_register(&acpi_namespace_kset);
 
@@ -1487,7 +1470,7 @@
 		acpi_device_unregister(acpi_root, ACPI_BUS_REMOVAL_NORMAL);
 
       Done:
-	return_VALUE(result);
+	return result;
 }
 
 subsys_initcall(acpi_scan_init);
diff --git a/drivers/acpi/system.c b/drivers/acpi/system.c
index 56a746b..c90bd2f 100644
--- a/drivers/acpi/system.c
+++ b/drivers/acpi/system.c
@@ -47,10 +47,9 @@
 
 static int acpi_system_read_info(struct seq_file *seq, void *offset)
 {
-	ACPI_FUNCTION_TRACE("acpi_system_read_info");
 
 	seq_printf(seq, "version:                 %x\n", ACPI_CA_VERSION);
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_system_info_open_fs(struct inode *inode, struct file *file)
@@ -80,17 +79,16 @@
 	struct acpi_buffer dsdt = { ACPI_ALLOCATE_BUFFER, NULL };
 	ssize_t res;
 
-	ACPI_FUNCTION_TRACE("acpi_system_read_dsdt");
 
 	status = acpi_get_table(ACPI_TABLE_ID_DSDT, 1, &dsdt);
 	if (ACPI_FAILURE(status))
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	res = simple_read_from_buffer(buffer, count, ppos,
 				      dsdt.pointer, dsdt.length);
 	acpi_os_free(dsdt.pointer);
 
-	return_VALUE(res);
+	return res;
 }
 
 static ssize_t acpi_system_read_fadt(struct file *, char __user *, size_t,
@@ -108,17 +106,16 @@
 	struct acpi_buffer fadt = { ACPI_ALLOCATE_BUFFER, NULL };
 	ssize_t res;
 
-	ACPI_FUNCTION_TRACE("acpi_system_read_fadt");
 
 	status = acpi_get_table(ACPI_TABLE_ID_FADT, 1, &fadt);
 	if (ACPI_FAILURE(status))
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	res = simple_read_from_buffer(buffer, count, ppos,
 				      fadt.pointer, fadt.length);
 	acpi_os_free(fadt.pointer);
 
-	return_VALUE(res);
+	return res;
 }
 
 static int __init acpi_system_init(void)
@@ -127,10 +124,9 @@
 	int error = 0;
 	char *name;
 
-	ACPI_FUNCTION_TRACE("acpi_system_init");
 
 	if (acpi_disabled)
-		return_VALUE(0);
+		return 0;
 
 	/* 'info' [R] */
 	name = ACPI_SYSTEM_FILE_INFO;
@@ -158,7 +154,7 @@
 		goto Error;
 
       Done:
-	return_VALUE(error);
+	return error;
 
       Error:
 	remove_proc_entry(ACPI_SYSTEM_FILE_FADT, acpi_root_dir);
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 1b97549..c855f44 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -222,51 +222,48 @@
 {
 	acpi_status status = AE_OK;
 
-	ACPI_FUNCTION_TRACE("acpi_thermal_get_temperature");
 
 	if (!tz)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	tz->last_temperature = tz->temperature;
 
 	status =
 	    acpi_evaluate_integer(tz->handle, "_TMP", NULL, &tz->temperature);
 	if (ACPI_FAILURE(status))
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Temperature is %lu dK\n",
 			  tz->temperature));
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_thermal_get_polling_frequency(struct acpi_thermal *tz)
 {
 	acpi_status status = AE_OK;
 
-	ACPI_FUNCTION_TRACE("acpi_thermal_get_polling_frequency");
 
 	if (!tz)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	status =
 	    acpi_evaluate_integer(tz->handle, "_TZP", NULL,
 				  &tz->polling_frequency);
 	if (ACPI_FAILURE(status))
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Polling frequency is %lu dS\n",
 			  tz->polling_frequency));
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_thermal_set_polling(struct acpi_thermal *tz, int seconds)
 {
-	ACPI_FUNCTION_TRACE("acpi_thermal_set_polling");
 
 	if (!tz)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	tz->polling_frequency = seconds * 10;	/* Convert value to deci-seconds */
 
@@ -274,7 +271,7 @@
 			  "Polling frequency set to %lu seconds\n",
 			  tz->polling_frequency));
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_thermal_set_cooling_mode(struct acpi_thermal *tz, int mode)
@@ -284,29 +281,28 @@
 	struct acpi_object_list arg_list = { 1, &arg0 };
 	acpi_handle handle = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_thermal_set_cooling_mode");
 
 	if (!tz)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	status = acpi_get_handle(tz->handle, "_SCP", &handle);
 	if (ACPI_FAILURE(status)) {
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "_SCP not present\n"));
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
 	arg0.integer.value = mode;
 
 	status = acpi_evaluate_object(handle, NULL, &arg_list, NULL);
 	if (ACPI_FAILURE(status))
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	tz->cooling_mode = mode;
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Cooling mode [%s]\n",
 			  mode ? "passive" : "active"));
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_thermal_get_trip_points(struct acpi_thermal *tz)
@@ -314,10 +310,9 @@
 	acpi_status status = AE_OK;
 	int i = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_thermal_get_trip_points");
 
 	if (!tz)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	/* Critical Shutdown (required) */
 
@@ -326,7 +321,7 @@
 	if (ACPI_FAILURE(status)) {
 		tz->trips.critical.flags.valid = 0;
 		ACPI_EXCEPTION((AE_INFO, status, "No critical threshold"));
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	} else {
 		tz->trips.critical.flags.valid = 1;
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
@@ -417,24 +412,23 @@
 					"Invalid active threshold [%d]", i));
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_thermal_get_devices(struct acpi_thermal *tz)
 {
 	acpi_status status = AE_OK;
 
-	ACPI_FUNCTION_TRACE("acpi_thermal_get_devices");
 
 	if (!tz)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	status =
 	    acpi_evaluate_reference(tz->handle, "_TZD", NULL, &tz->devices);
 	if (ACPI_FAILURE(status))
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_thermal_call_usermode(char *path)
@@ -442,10 +436,9 @@
 	char *argv[2] = { NULL, NULL };
 	char *envp[3] = { NULL, NULL, NULL };
 
-	ACPI_FUNCTION_TRACE("acpi_thermal_call_usermode");
 
 	if (!path)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	argv[0] = path;
 
@@ -455,7 +448,7 @@
 
 	call_usermodehelper(argv[0], argv, envp, 0);
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_thermal_critical(struct acpi_thermal *tz)
@@ -463,10 +456,9 @@
 	int result = 0;
 	struct acpi_device *device = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_thermal_critical");
 
 	if (!tz || !tz->trips.critical.flags.valid)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (tz->temperature >= tz->trips.critical.temperature) {
 		printk(KERN_WARNING PREFIX "Critical trip point\n");
@@ -476,7 +468,7 @@
 
 	result = acpi_bus_get_device(tz->handle, &device);
 	if (result)
-		return_VALUE(result);
+		return result;
 
 	printk(KERN_EMERG
 	       "Critical temperature reached (%ld C), shutting down.\n",
@@ -486,7 +478,7 @@
 
 	acpi_thermal_call_usermode(ACPI_THERMAL_PATH_POWEROFF);
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_thermal_hot(struct acpi_thermal *tz)
@@ -494,10 +486,9 @@
 	int result = 0;
 	struct acpi_device *device = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_thermal_hot");
 
 	if (!tz || !tz->trips.hot.flags.valid)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (tz->temperature >= tz->trips.hot.temperature) {
 		printk(KERN_WARNING PREFIX "Hot trip point\n");
@@ -507,14 +498,14 @@
 
 	result = acpi_bus_get_device(tz->handle, &device);
 	if (result)
-		return_VALUE(result);
+		return result;
 
 	acpi_bus_generate_event(device, ACPI_THERMAL_NOTIFY_HOT,
 				tz->trips.hot.flags.enabled);
 
 	/* TBD: Call user-mode "sleep(S4)" function */
 
-	return_VALUE(0);
+	return 0;
 }
 
 static void acpi_thermal_passive(struct acpi_thermal *tz)
@@ -524,7 +515,6 @@
 	int trend = 0;
 	int i = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_thermal_passive");
 
 	if (!tz || !tz->trips.passive.flags.valid)
 		return;
@@ -613,7 +603,6 @@
 	int j = 0;
 	unsigned long maxtemp = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_thermal_active");
 
 	if (!tz)
 		return;
@@ -695,18 +684,17 @@
 	int i = 0;
 	struct acpi_thermal_state state;
 
-	ACPI_FUNCTION_TRACE("acpi_thermal_check");
 
 	if (!tz) {
 		printk(KERN_ERR PREFIX "Invalid (NULL) context\n");
-		return_VOID;
+		return;
 	}
 
 	state = tz->state;
 
 	result = acpi_thermal_get_temperature(tz);
 	if (result)
-		return_VOID;
+		return;
 
 	memset(&tz->state, 0, sizeof(tz->state));
 
@@ -795,7 +783,7 @@
 		}
 	}
 
-	return_VOID;
+	return;
 }
 
 /* --------------------------------------------------------------------------
@@ -808,7 +796,6 @@
 {
 	struct acpi_thermal *tz = (struct acpi_thermal *)seq->private;
 
-	ACPI_FUNCTION_TRACE("acpi_thermal_state_seq_show");
 
 	if (!tz)
 		goto end;
@@ -831,7 +818,7 @@
 	}
 
       end:
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_thermal_state_open_fs(struct inode *inode, struct file *file)
@@ -844,7 +831,6 @@
 	int result = 0;
 	struct acpi_thermal *tz = (struct acpi_thermal *)seq->private;
 
-	ACPI_FUNCTION_TRACE("acpi_thermal_temp_seq_show");
 
 	if (!tz)
 		goto end;
@@ -857,7 +843,7 @@
 		   KELVIN_TO_CELSIUS(tz->temperature));
 
       end:
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_thermal_temp_open_fs(struct inode *inode, struct file *file)
@@ -871,7 +857,6 @@
 	int i = 0;
 	int j = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_thermal_trip_seq_show");
 
 	if (!tz)
 		goto end;
@@ -911,7 +896,7 @@
 	}
 
       end:
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_thermal_trip_open_fs(struct inode *inode, struct file *file)
@@ -932,18 +917,17 @@
 	int *active;
 	int i = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_thermal_write_trip_points");
 
 	limit_string = kmalloc(ACPI_THERMAL_MAX_LIMIT_STR_LEN, GFP_KERNEL);
 	if (!limit_string)
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 
 	memset(limit_string, 0, ACPI_THERMAL_MAX_LIMIT_STR_LEN);
 
 	active = kmalloc(ACPI_THERMAL_MAX_ACTIVE * sizeof(int), GFP_KERNEL);
 	if (!active) {
 		kfree(limit_string);
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 	}
 
 	if (!tz || (count > ACPI_THERMAL_MAX_LIMIT_STR_LEN - 1)) {
@@ -980,14 +964,13 @@
       end:
 	kfree(active);
 	kfree(limit_string);
-	return_VALUE(count);
+	return count;
 }
 
 static int acpi_thermal_cooling_seq_show(struct seq_file *seq, void *offset)
 {
 	struct acpi_thermal *tz = (struct acpi_thermal *)seq->private;
 
-	ACPI_FUNCTION_TRACE("acpi_thermal_cooling_seq_show");
 
 	if (!tz)
 		goto end;
@@ -1003,7 +986,7 @@
 			   tz->cooling_mode ? "passive" : "active");
 
       end:
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_thermal_cooling_open_fs(struct inode *inode, struct file *file)
@@ -1022,16 +1005,15 @@
 	int result = 0;
 	char mode_string[12] = { '\0' };
 
-	ACPI_FUNCTION_TRACE("acpi_thermal_write_cooling_mode");
 
 	if (!tz || (count > sizeof(mode_string) - 1))
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (!tz->flags.cooling_mode)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	if (copy_from_user(mode_string, buffer, count))
-		return_VALUE(-EFAULT);
+		return -EFAULT;
 
 	mode_string[count] = '\0';
 
@@ -1039,18 +1021,17 @@
 					       simple_strtoul(mode_string, NULL,
 							      0));
 	if (result)
-		return_VALUE(result);
+		return result;
 
 	acpi_thermal_check(tz);
 
-	return_VALUE(count);
+	return count;
 }
 
 static int acpi_thermal_polling_seq_show(struct seq_file *seq, void *offset)
 {
 	struct acpi_thermal *tz = (struct acpi_thermal *)seq->private;
 
-	ACPI_FUNCTION_TRACE("acpi_thermal_polling_seq_show");
 
 	if (!tz)
 		goto end;
@@ -1064,7 +1045,7 @@
 		   (tz->polling_frequency / 10));
 
       end:
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_thermal_polling_open_fs(struct inode *inode, struct file *file)
@@ -1084,13 +1065,12 @@
 	char polling_string[12] = { '\0' };
 	int seconds = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_thermal_write_polling");
 
 	if (!tz || (count > sizeof(polling_string) - 1))
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (copy_from_user(polling_string, buffer, count))
-		return_VALUE(-EFAULT);
+		return -EFAULT;
 
 	polling_string[count] = '\0';
 
@@ -1098,24 +1078,23 @@
 
 	result = acpi_thermal_set_polling(tz, seconds);
 	if (result)
-		return_VALUE(result);
+		return result;
 
 	acpi_thermal_check(tz);
 
-	return_VALUE(count);
+	return count;
 }
 
 static int acpi_thermal_add_fs(struct acpi_device *device)
 {
 	struct proc_dir_entry *entry = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_thermal_add_fs");
 
 	if (!acpi_device_dir(device)) {
 		acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
 						     acpi_thermal_dir);
 		if (!acpi_device_dir(device))
-			return_VALUE(-ENODEV);
+			return -ENODEV;
 		acpi_device_dir(device)->owner = THIS_MODULE;
 	}
 
@@ -1123,7 +1102,7 @@
 	entry = create_proc_entry(ACPI_THERMAL_FILE_STATE,
 				  S_IRUGO, acpi_device_dir(device));
 	if (!entry)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	else {
 		entry->proc_fops = &acpi_thermal_state_fops;
 		entry->data = acpi_driver_data(device);
@@ -1134,7 +1113,7 @@
 	entry = create_proc_entry(ACPI_THERMAL_FILE_TEMPERATURE,
 				  S_IRUGO, acpi_device_dir(device));
 	if (!entry)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	else {
 		entry->proc_fops = &acpi_thermal_temp_fops;
 		entry->data = acpi_driver_data(device);
@@ -1146,7 +1125,7 @@
 				  S_IFREG | S_IRUGO | S_IWUSR,
 				  acpi_device_dir(device));
 	if (!entry)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	else {
 		entry->proc_fops = &acpi_thermal_trip_fops;
 		entry->data = acpi_driver_data(device);
@@ -1158,7 +1137,7 @@
 				  S_IFREG | S_IRUGO | S_IWUSR,
 				  acpi_device_dir(device));
 	if (!entry)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	else {
 		entry->proc_fops = &acpi_thermal_cooling_fops;
 		entry->data = acpi_driver_data(device);
@@ -1170,19 +1149,18 @@
 				  S_IFREG | S_IRUGO | S_IWUSR,
 				  acpi_device_dir(device));
 	if (!entry)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	else {
 		entry->proc_fops = &acpi_thermal_polling_fops;
 		entry->data = acpi_driver_data(device);
 		entry->owner = THIS_MODULE;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_thermal_remove_fs(struct acpi_device *device)
 {
-	ACPI_FUNCTION_TRACE("acpi_thermal_remove_fs");
 
 	if (acpi_device_dir(device)) {
 		remove_proc_entry(ACPI_THERMAL_FILE_POLLING_FREQ,
@@ -1199,7 +1177,7 @@
 		acpi_device_dir(device) = NULL;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 /* --------------------------------------------------------------------------
@@ -1211,13 +1189,12 @@
 	struct acpi_thermal *tz = (struct acpi_thermal *)data;
 	struct acpi_device *device = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_thermal_notify");
 
 	if (!tz)
-		return_VOID;
+		return;
 
 	if (acpi_bus_get_device(tz->handle, &device))
-		return_VOID;
+		return;
 
 	switch (event) {
 	case ACPI_THERMAL_NOTIFY_TEMPERATURE:
@@ -1239,27 +1216,26 @@
 		break;
 	}
 
-	return_VOID;
+	return;
 }
 
 static int acpi_thermal_get_info(struct acpi_thermal *tz)
 {
 	int result = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_thermal_get_info");
 
 	if (!tz)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	/* Get temperature [_TMP] (required) */
 	result = acpi_thermal_get_temperature(tz);
 	if (result)
-		return_VALUE(result);
+		return result;
 
 	/* Get trip points [_CRT, _PSV, etc.] (required) */
 	result = acpi_thermal_get_trip_points(tz);
 	if (result)
-		return_VALUE(result);
+		return result;
 
 	/* Set the cooling mode [_SCP] to active cooling (default) */
 	result = acpi_thermal_set_cooling_mode(tz, ACPI_THERMAL_MODE_ACTIVE);
@@ -1299,7 +1275,7 @@
 	if (!result)
 		tz->flags.devices = 1;
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_thermal_add(struct acpi_device *device)
@@ -1308,14 +1284,13 @@
 	acpi_status status = AE_OK;
 	struct acpi_thermal *tz = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_thermal_add");
 
 	if (!device)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	tz = kmalloc(sizeof(struct acpi_thermal), GFP_KERNEL);
 	if (!tz)
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 	memset(tz, 0, sizeof(struct acpi_thermal));
 
 	tz->handle = device->handle;
@@ -1354,7 +1329,7 @@
 		kfree(tz);
 	}
 
-	return_VALUE(result);
+	return result;
 }
 
 static int acpi_thermal_remove(struct acpi_device *device, int type)
@@ -1362,10 +1337,9 @@
 	acpi_status status = AE_OK;
 	struct acpi_thermal *tz = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_thermal_remove");
 
 	if (!device || !acpi_driver_data(device))
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	tz = (struct acpi_thermal *)acpi_driver_data(device);
 
@@ -1396,7 +1370,7 @@
 	acpi_thermal_remove_fs(device);
 
 	kfree(tz);
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_thermal_resume(struct acpi_device *device, int state)
@@ -1404,7 +1378,7 @@
 	struct acpi_thermal *tz = NULL;
 
 	if (!device || !acpi_driver_data(device))
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	tz = (struct acpi_thermal *)acpi_driver_data(device);
 
@@ -1417,31 +1391,29 @@
 {
 	int result = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_thermal_init");
 
 	acpi_thermal_dir = proc_mkdir(ACPI_THERMAL_CLASS, acpi_root_dir);
 	if (!acpi_thermal_dir)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	acpi_thermal_dir->owner = THIS_MODULE;
 
 	result = acpi_bus_register_driver(&acpi_thermal_driver);
 	if (result < 0) {
 		remove_proc_entry(ACPI_THERMAL_CLASS, acpi_root_dir);
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 static void __exit acpi_thermal_exit(void)
 {
-	ACPI_FUNCTION_TRACE("acpi_thermal_exit");
 
 	acpi_bus_unregister_driver(&acpi_thermal_driver);
 
 	remove_proc_entry(ACPI_THERMAL_CLASS, acpi_root_dir);
 
-	return_VOID;
+	return;
 }
 
 module_init(acpi_thermal_init);
diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
index a5da4ef..1930e1a 100644
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c
@@ -58,22 +58,21 @@
 	u8 *head = NULL;
 	u8 *tail = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_extract_package");
 
 	if (!package || (package->type != ACPI_TYPE_PACKAGE)
 	    || (package->package.count < 1)) {
 		printk(KERN_WARNING PREFIX "Invalid package argument\n");
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
+		return AE_BAD_PARAMETER;
 	}
 
 	if (!format || !format->pointer || (format->length < 1)) {
 		printk(KERN_WARNING PREFIX "Invalid format argument\n");
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
+		return AE_BAD_PARAMETER;
 	}
 
 	if (!buffer) {
 		printk(KERN_WARNING PREFIX "Invalid buffer argument\n");
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
+		return AE_BAD_PARAMETER;
 	}
 
 	format_count = (format->length / sizeof(char)) - 1;
@@ -81,7 +80,7 @@
 		printk(KERN_WARNING PREFIX "Format specifies more objects [%d]"
 			      " than exist in package [%d].\n",
 			      format_count, package->package.count);
-		return_ACPI_STATUS(AE_BAD_DATA);
+		return AE_BAD_DATA;
 	}
 
 	format_string = (char *)format->pointer;
@@ -94,7 +93,7 @@
 		union acpi_object *element = &(package->package.elements[i]);
 
 		if (!element) {
-			return_ACPI_STATUS(AE_BAD_DATA);
+			return AE_BAD_DATA;
 		}
 
 		switch (element->type) {
@@ -116,7 +115,7 @@
 					      " [%d]: got number, expecing"
 					      " [%c]\n",
 					      i, format_string[i]);
-				return_ACPI_STATUS(AE_BAD_DATA);
+				return AE_BAD_DATA;
 				break;
 			}
 			break;
@@ -142,7 +141,7 @@
 					      " [%d] got string/buffer,"
 					      " expecing [%c]\n",
 					      i, format_string[i]);
-				return_ACPI_STATUS(AE_BAD_DATA);
+				return AE_BAD_DATA;
 				break;
 			}
 			break;
@@ -153,7 +152,7 @@
 					  "Found unsupported element at index=%d\n",
 					  i));
 			/* TBD: handle nested packages... */
-			return_ACPI_STATUS(AE_SUPPORT);
+			return AE_SUPPORT;
 			break;
 		}
 	}
@@ -163,9 +162,9 @@
 	 */
 	if (buffer->length < size_required) {
 		buffer->length = size_required;
-		return_ACPI_STATUS(AE_BUFFER_OVERFLOW);
+		return AE_BUFFER_OVERFLOW;
 	} else if (buffer->length != size_required || !buffer->pointer) {
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
+		return AE_BAD_PARAMETER;
 	}
 
 	head = buffer->pointer;
@@ -180,7 +179,7 @@
 		union acpi_object *element = &(package->package.elements[i]);
 
 		if (!element) {
-			return_ACPI_STATUS(AE_BAD_DATA);
+			return AE_BAD_DATA;
 		}
 
 		switch (element->type) {
@@ -245,7 +244,7 @@
 		}
 	}
 
-	return_ACPI_STATUS(AE_OK);
+	return AE_OK;
 }
 
 EXPORT_SYMBOL(acpi_extract_package);
@@ -259,14 +258,13 @@
 	union acpi_object *element;
 	struct acpi_buffer buffer = { 0, NULL };
 
-	ACPI_FUNCTION_TRACE("acpi_evaluate_integer");
 
 	if (!data)
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
+		return AE_BAD_PARAMETER;
 
 	element = kmalloc(sizeof(union acpi_object), GFP_KERNEL);
 	if (!element)
-		return_ACPI_STATUS(AE_NO_MEMORY);
+		return AE_NO_MEMORY;
 
 	memset(element, 0, sizeof(union acpi_object));
 	buffer.length = sizeof(union acpi_object);
@@ -275,13 +273,13 @@
 	if (ACPI_FAILURE(status)) {
 		acpi_util_eval_error(handle, pathname, status);
 		kfree(element);
-		return_ACPI_STATUS(status);
+		return status;
 	}
 
 	if (element->type != ACPI_TYPE_INTEGER) {
 		acpi_util_eval_error(handle, pathname, AE_BAD_DATA);
 		kfree(element);
-		return_ACPI_STATUS(AE_BAD_DATA);
+		return AE_BAD_DATA;
 	}
 
 	*data = element->integer.value;
@@ -289,7 +287,7 @@
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Return value [%lu]\n", *data));
 
-	return_ACPI_STATUS(AE_OK);
+	return AE_OK;
 }
 
 EXPORT_SYMBOL(acpi_evaluate_integer);
@@ -304,15 +302,14 @@
 	acpi_object *element = NULL;
 	acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
 
-	ACPI_FUNCTION_TRACE("acpi_evaluate_string");
 
 	if (!data)
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
+		return AE_BAD_PARAMETER;
 
 	status = acpi_evaluate_object(handle, pathname, arguments, &buffer);
 	if (ACPI_FAILURE(status)) {
 		acpi_util_eval_error(handle, pathname, status);
-		return_ACPI_STATUS(status);
+		return status;
 	}
 
 	element = (acpi_object *) buffer.pointer;
@@ -321,13 +318,13 @@
 	    || (element->type != ACPI_TYPE_BUFFER)
 	    || !element->string.length) {
 		acpi_util_eval_error(handle, pathname, AE_BAD_DATA);
-		return_ACPI_STATUS(AE_BAD_DATA);
+		return AE_BAD_DATA;
 	}
 
 	*data = kmalloc(element->string.length + 1, GFP_KERNEL);
 	if (!data) {
 		printk(KERN_ERR PREFIX "Memory allocation\n");
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 	}
 	memset(*data, 0, element->string.length + 1);
 
@@ -337,7 +334,7 @@
 
 	acpi_os_free(buffer.pointer);
 
-	return_ACPI_STATUS(AE_OK);
+	return AE_OK;
 }
 #endif
 
@@ -353,10 +350,9 @@
 	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
 	u32 i = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_evaluate_reference");
 
 	if (!list) {
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
+		return AE_BAD_PARAMETER;
 	}
 
 	/* Evaluate object. */
@@ -390,7 +386,7 @@
 	}
 
 	if (package->package.count > ACPI_MAX_HANDLES) {
-		return_ACPI_STATUS(AE_NO_MEMORY);
+		return AE_NO_MEMORY;
 	}
 	list->count = package->package.count;
 
@@ -424,7 +420,7 @@
 
 	acpi_os_free(buffer.pointer);
 
-	return_ACPI_STATUS(status);
+	return status;
 }
 
 EXPORT_SYMBOL(acpi_evaluate_reference);
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index ca37da5..9feb633 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -272,10 +272,9 @@
 acpi_video_device_query(struct acpi_video_device *device, unsigned long *state)
 {
 	int status;
-	ACPI_FUNCTION_TRACE("acpi_video_device_query");
 	status = acpi_evaluate_integer(device->handle, "_DGS", NULL, state);
 
-	return_VALUE(status);
+	return status;
 }
 
 static int
@@ -284,11 +283,10 @@
 {
 	int status;
 
-	ACPI_FUNCTION_TRACE("acpi_video_device_get_state");
 
 	status = acpi_evaluate_integer(device->handle, "_DCS", NULL, state);
 
-	return_VALUE(status);
+	return status;
 }
 
 static int
@@ -299,12 +297,11 @@
 	struct acpi_object_list args = { 1, &arg0 };
 	unsigned long ret;
 
-	ACPI_FUNCTION_TRACE("acpi_video_device_set_state");
 
 	arg0.integer.value = state;
 	status = acpi_evaluate_integer(device->handle, "_DSS", &args, &ret);
 
-	return_VALUE(status);
+	return status;
 }
 
 static int
@@ -315,13 +312,12 @@
 	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
 	union acpi_object *obj;
 
-	ACPI_FUNCTION_TRACE("acpi_video_device_lcd_query_levels");
 
 	*levels = NULL;
 
 	status = acpi_evaluate_object(device->handle, "_BCL", NULL, &buffer);
 	if (!ACPI_SUCCESS(status))
-		return_VALUE(status);
+		return status;
 	obj = (union acpi_object *)buffer.pointer;
 	if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) {
 		printk(KERN_ERR PREFIX "Invalid _BCL data\n");
@@ -331,12 +327,12 @@
 
 	*levels = obj;
 
-	return_VALUE(0);
+	return 0;
 
       err:
 	kfree(buffer.pointer);
 
-	return_VALUE(status);
+	return status;
 }
 
 static int
@@ -346,13 +342,12 @@
 	union acpi_object arg0 = { ACPI_TYPE_INTEGER };
 	struct acpi_object_list args = { 1, &arg0 };
 
-	ACPI_FUNCTION_TRACE("acpi_video_device_lcd_set_level");
 
 	arg0.integer.value = level;
 	status = acpi_evaluate_object(device->handle, "_BCM", &args, NULL);
 
 	printk(KERN_DEBUG "set_level status: %x\n", status);
-	return_VALUE(status);
+	return status;
 }
 
 static int
@@ -360,11 +355,10 @@
 					unsigned long *level)
 {
 	int status;
-	ACPI_FUNCTION_TRACE("acpi_video_device_lcd_get_level_current");
 
 	status = acpi_evaluate_integer(device->handle, "_BQC", NULL, level);
 
-	return_VALUE(status);
+	return status;
 }
 
 static int
@@ -377,22 +371,21 @@
 	union acpi_object arg0 = { ACPI_TYPE_INTEGER };
 	struct acpi_object_list args = { 1, &arg0 };
 
-	ACPI_FUNCTION_TRACE("acpi_video_device_get_EDID");
 
 	*edid = NULL;
 
 	if (!device)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	if (length == 128)
 		arg0.integer.value = 1;
 	else if (length == 256)
 		arg0.integer.value = 2;
 	else
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	status = acpi_evaluate_object(device->handle, "_DDC", &args, &buffer);
 	if (ACPI_FAILURE(status))
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	obj = (union acpi_object *)buffer.pointer;
 
@@ -404,7 +397,7 @@
 		kfree(obj);
 	}
 
-	return_VALUE(status);
+	return status;
 }
 
 /* bus */
@@ -417,7 +410,6 @@
 	union acpi_object arg0 = { ACPI_TYPE_INTEGER };
 	struct acpi_object_list args = { 1, &arg0 };
 
-	ACPI_FUNCTION_TRACE("acpi_video_bus_set_POST");
 
 	arg0.integer.value = option;
 
@@ -425,7 +417,7 @@
 	if (ACPI_SUCCESS(status))
 		status = tmp ? (-EINVAL) : (AE_OK);
 
-	return_VALUE(status);
+	return status;
 }
 
 static int
@@ -433,11 +425,10 @@
 {
 	int status;
 
-	ACPI_FUNCTION_TRACE("acpi_video_bus_get_POST");
 
 	status = acpi_evaluate_integer(video->handle, "_GPD", NULL, id);
 
-	return_VALUE(status);
+	return status;
 }
 
 static int
@@ -445,12 +436,11 @@
 			    unsigned long *options)
 {
 	int status;
-	ACPI_FUNCTION_TRACE("acpi_video_bus_POST_options");
 
 	status = acpi_evaluate_integer(video->handle, "_VPO", NULL, options);
 	*options &= 3;
 
-	return_VALUE(status);
+	return status;
 }
 
 /*
@@ -481,7 +471,6 @@
 	union acpi_object arg0 = { ACPI_TYPE_INTEGER };
 	struct acpi_object_list args = { 1, &arg0 };
 
-	ACPI_FUNCTION_TRACE("acpi_video_bus_DOS");
 
 	if (bios_flag < 0 || bios_flag > 3 || lcd_flag < 0 || lcd_flag > 1) {
 		status = -1;
@@ -492,7 +481,7 @@
 	acpi_evaluate_object(video->handle, "_DOS", &args, NULL);
 
       Failed:
-	return_VALUE(status);
+	return status;
 }
 
 /*
@@ -514,7 +503,6 @@
 	union acpi_object *obj = NULL;
 	struct acpi_video_device_brightness *br = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_video_device_find_cap");
 
 	memset(&device->cap, 0, 4);
 
@@ -582,7 +570,7 @@
 
 	kfree(obj);
 
-	return_VOID;
+	return;
 }
 
 /*
@@ -629,10 +617,9 @@
 {
 	acpi_status status = -ENOENT;
 
-	ACPI_FUNCTION_TRACE("acpi_video_bus_check");
 
 	if (!video)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	/* Since there is no HID, CID and so on for VGA driver, we have
 	 * to check well known required nodes.
@@ -656,7 +643,7 @@
 		status = 0;
 	}
 
-	return_VALUE(status);
+	return status;
 }
 
 /* --------------------------------------------------------------------------
@@ -672,7 +659,6 @@
 	struct acpi_video_device *dev =
 	    (struct acpi_video_device *)seq->private;
 
-	ACPI_FUNCTION_TRACE("acpi_video_device_info_seq_show");
 
 	if (!dev)
 		goto end;
@@ -691,7 +677,7 @@
 	seq_printf(seq, "known by bios: %s\n", dev->flags.bios ? "yes" : "no");
 
       end:
-	return_VALUE(0);
+	return 0;
 }
 
 static int
@@ -708,7 +694,6 @@
 	    (struct acpi_video_device *)seq->private;
 	unsigned long state;
 
-	ACPI_FUNCTION_TRACE("acpi_video_device_state_seq_show");
 
 	if (!dev)
 		goto end;
@@ -728,7 +713,7 @@
 		seq_printf(seq, "<not supported>\n");
 
       end:
-	return_VALUE(0);
+	return 0;
 }
 
 static int
@@ -749,13 +734,12 @@
 	char str[12] = { 0 };
 	u32 state = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_video_device_write_state");
 
 	if (!dev || count + 1 > sizeof str)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (copy_from_user(str, buffer, count))
-		return_VALUE(-EFAULT);
+		return -EFAULT;
 
 	str[count] = 0;
 	state = simple_strtoul(str, NULL, 0);
@@ -764,9 +748,9 @@
 	status = acpi_video_device_set_state(dev, state);
 
 	if (status)
-		return_VALUE(-EFAULT);
+		return -EFAULT;
 
-	return_VALUE(count);
+	return count;
 }
 
 static int
@@ -776,11 +760,10 @@
 	    (struct acpi_video_device *)seq->private;
 	int i;
 
-	ACPI_FUNCTION_TRACE("acpi_video_device_brightness_seq_show");
 
 	if (!dev || !dev->brightness) {
 		seq_printf(seq, "<not supported>\n");
-		return_VALUE(0);
+		return 0;
 	}
 
 	seq_printf(seq, "levels: ");
@@ -788,7 +771,7 @@
 		seq_printf(seq, " %d", dev->brightness->levels[i]);
 	seq_printf(seq, "\ncurrent: %d\n", dev->brightness->curr);
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int
@@ -809,19 +792,18 @@
 	unsigned int level = 0;
 	int i;
 
-	ACPI_FUNCTION_TRACE("acpi_video_device_write_brightness");
 
 	if (!dev || !dev->brightness || count + 1 > sizeof str)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (copy_from_user(str, buffer, count))
-		return_VALUE(-EFAULT);
+		return -EFAULT;
 
 	str[count] = 0;
 	level = simple_strtoul(str, NULL, 0);
 
 	if (level > 100)
-		return_VALUE(-EFAULT);
+		return -EFAULT;
 
 	/* validate though the list of available levels */
 	for (i = 0; i < dev->brightness->count; i++)
@@ -832,7 +814,7 @@
 			break;
 		}
 
-	return_VALUE(count);
+	return count;
 }
 
 static int acpi_video_device_EDID_seq_show(struct seq_file *seq, void *offset)
@@ -843,7 +825,6 @@
 	int i;
 	union acpi_object *edid = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_video_device_EDID_seq_show");
 
 	if (!dev)
 		goto out;
@@ -868,7 +849,7 @@
 	else
 		kfree(edid);
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int
@@ -883,27 +864,26 @@
 	struct proc_dir_entry *entry = NULL;
 	struct acpi_video_device *vid_dev;
 
-	ACPI_FUNCTION_TRACE("acpi_video_device_add_fs");
 
 	if (!device)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	vid_dev = (struct acpi_video_device *)acpi_driver_data(device);
 	if (!vid_dev)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	if (!acpi_device_dir(device)) {
 		acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
 						     vid_dev->video->dir);
 		if (!acpi_device_dir(device))
-			return_VALUE(-ENODEV);
+			return -ENODEV;
 		acpi_device_dir(device)->owner = THIS_MODULE;
 	}
 
 	/* 'info' [R] */
 	entry = create_proc_entry("info", S_IRUGO, acpi_device_dir(device));
 	if (!entry)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	else {
 		entry->proc_fops = &acpi_video_device_info_fops;
 		entry->data = acpi_driver_data(device);
@@ -915,7 +895,7 @@
 	    create_proc_entry("state", S_IFREG | S_IRUGO | S_IWUSR,
 			      acpi_device_dir(device));
 	if (!entry)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	else {
 		acpi_video_device_state_fops.write = acpi_video_device_write_state;
 		entry->proc_fops = &acpi_video_device_state_fops;
@@ -928,7 +908,7 @@
 	    create_proc_entry("brightness", S_IFREG | S_IRUGO | S_IWUSR,
 			      acpi_device_dir(device));
 	if (!entry)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	else {
 		acpi_video_device_brightness_fops.write = acpi_video_device_write_brightness;
 		entry->proc_fops = &acpi_video_device_brightness_fops;
@@ -939,24 +919,23 @@
 	/* 'EDID' [R] */
 	entry = create_proc_entry("EDID", S_IRUGO, acpi_device_dir(device));
 	if (!entry)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	else {
 		entry->proc_fops = &acpi_video_device_EDID_fops;
 		entry->data = acpi_driver_data(device);
 		entry->owner = THIS_MODULE;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_video_device_remove_fs(struct acpi_device *device)
 {
 	struct acpi_video_device *vid_dev;
-	ACPI_FUNCTION_TRACE("acpi_video_device_remove_fs");
 
 	vid_dev = (struct acpi_video_device *)acpi_driver_data(device);
 	if (!vid_dev || !vid_dev->video || !vid_dev->video->dir)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 
 	if (acpi_device_dir(device)) {
 		remove_proc_entry("info", acpi_device_dir(device));
@@ -967,7 +946,7 @@
 		acpi_device_dir(device) = NULL;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 /* video bus */
@@ -975,7 +954,6 @@
 {
 	struct acpi_video_bus *video = (struct acpi_video_bus *)seq->private;
 
-	ACPI_FUNCTION_TRACE("acpi_video_bus_info_seq_show");
 
 	if (!video)
 		goto end;
@@ -988,7 +966,7 @@
 		   video->flags.post ? "yes" : "no");
 
       end:
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_video_bus_info_open_fs(struct inode *inode, struct file *file)
@@ -1001,7 +979,6 @@
 {
 	struct acpi_video_bus *video = (struct acpi_video_bus *)seq->private;
 
-	ACPI_FUNCTION_TRACE("acpi_video_bus_ROM_seq_show");
 
 	if (!video)
 		goto end;
@@ -1010,7 +987,7 @@
 	seq_printf(seq, "<TODO>\n");
 
       end:
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_video_bus_ROM_open_fs(struct inode *inode, struct file *file)
@@ -1024,7 +1001,6 @@
 	unsigned long options;
 	int status;
 
-	ACPI_FUNCTION_TRACE("acpi_video_bus_POST_info_seq_show");
 
 	if (!video)
 		goto end;
@@ -1047,7 +1023,7 @@
 	} else
 		seq_printf(seq, "<not supported>\n");
       end:
-	return_VALUE(0);
+	return 0;
 }
 
 static int
@@ -1063,7 +1039,6 @@
 	int status;
 	unsigned long id;
 
-	ACPI_FUNCTION_TRACE("acpi_video_bus_POST_seq_show");
 
 	if (!video)
 		goto end;
@@ -1076,18 +1051,17 @@
 	seq_printf(seq, "device posted is <%s>\n", device_decode[id & 3]);
 
       end:
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_video_bus_DOS_seq_show(struct seq_file *seq, void *offset)
 {
 	struct acpi_video_bus *video = (struct acpi_video_bus *)seq->private;
 
-	ACPI_FUNCTION_TRACE("acpi_video_bus_DOS_seq_show");
 
 	seq_printf(seq, "DOS setting: <%d>\n", video->dos_setting);
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_video_bus_POST_open_fs(struct inode *inode, struct file *file)
@@ -1112,22 +1086,21 @@
 	char str[12] = { 0 };
 	unsigned long opt, options;
 
-	ACPI_FUNCTION_TRACE("acpi_video_bus_write_POST");
 
 	if (!video || count + 1 > sizeof str)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	status = acpi_video_bus_POST_options(video, &options);
 	if (!ACPI_SUCCESS(status))
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (copy_from_user(str, buffer, count))
-		return_VALUE(-EFAULT);
+		return -EFAULT;
 
 	str[count] = 0;
 	opt = strtoul(str, NULL, 0);
 	if (opt > 3)
-		return_VALUE(-EFAULT);
+		return -EFAULT;
 
 	/* just in case an OEM 'forget' the motherboard... */
 	options |= 1;
@@ -1135,11 +1108,11 @@
 	if (options & (1ul << opt)) {
 		status = acpi_video_bus_set_POST(video, opt);
 		if (!ACPI_SUCCESS(status))
-			return_VALUE(-EFAULT);
+			return -EFAULT;
 
 	}
 
-	return_VALUE(count);
+	return count;
 }
 
 static ssize_t
@@ -1153,25 +1126,24 @@
 	char str[12] = { 0 };
 	unsigned long opt;
 
-	ACPI_FUNCTION_TRACE("acpi_video_bus_write_DOS");
 
 	if (!video || count + 1 > sizeof str)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	if (copy_from_user(str, buffer, count))
-		return_VALUE(-EFAULT);
+		return -EFAULT;
 
 	str[count] = 0;
 	opt = strtoul(str, NULL, 0);
 	if (opt > 7)
-		return_VALUE(-EFAULT);
+		return -EFAULT;
 
 	status = acpi_video_bus_DOS(video, opt & 0x3, (opt & 0x4) >> 2);
 
 	if (!ACPI_SUCCESS(status))
-		return_VALUE(-EFAULT);
+		return -EFAULT;
 
-	return_VALUE(count);
+	return count;
 }
 
 static int acpi_video_bus_add_fs(struct acpi_device *device)
@@ -1179,7 +1151,6 @@
 	struct proc_dir_entry *entry = NULL;
 	struct acpi_video_bus *video;
 
-	ACPI_FUNCTION_TRACE("acpi_video_bus_add_fs");
 
 	video = (struct acpi_video_bus *)acpi_driver_data(device);
 
@@ -1187,7 +1158,7 @@
 		acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
 						     acpi_video_dir);
 		if (!acpi_device_dir(device))
-			return_VALUE(-ENODEV);
+			return -ENODEV;
 		video->dir = acpi_device_dir(device);
 		acpi_device_dir(device)->owner = THIS_MODULE;
 	}
@@ -1195,7 +1166,7 @@
 	/* 'info' [R] */
 	entry = create_proc_entry("info", S_IRUGO, acpi_device_dir(device));
 	if (!entry)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	else {
 		entry->proc_fops = &acpi_video_bus_info_fops;
 		entry->data = acpi_driver_data(device);
@@ -1205,7 +1176,7 @@
 	/* 'ROM' [R] */
 	entry = create_proc_entry("ROM", S_IRUGO, acpi_device_dir(device));
 	if (!entry)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	else {
 		entry->proc_fops = &acpi_video_bus_ROM_fops;
 		entry->data = acpi_driver_data(device);
@@ -1216,7 +1187,7 @@
 	entry =
 	    create_proc_entry("POST_info", S_IRUGO, acpi_device_dir(device));
 	if (!entry)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	else {
 		entry->proc_fops = &acpi_video_bus_POST_info_fops;
 		entry->data = acpi_driver_data(device);
@@ -1228,7 +1199,7 @@
 	    create_proc_entry("POST", S_IFREG | S_IRUGO | S_IRUSR,
 			      acpi_device_dir(device));
 	if (!entry)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	else {
 		acpi_video_bus_POST_fops.write = acpi_video_bus_write_POST;
 		entry->proc_fops = &acpi_video_bus_POST_fops;
@@ -1241,7 +1212,7 @@
 	    create_proc_entry("DOS", S_IFREG | S_IRUGO | S_IRUSR,
 			      acpi_device_dir(device));
 	if (!entry)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	else {
 		acpi_video_bus_DOS_fops.write = acpi_video_bus_write_DOS;
 		entry->proc_fops = &acpi_video_bus_DOS_fops;
@@ -1249,14 +1220,13 @@
 		entry->owner = THIS_MODULE;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_video_bus_remove_fs(struct acpi_device *device)
 {
 	struct acpi_video_bus *video;
 
-	ACPI_FUNCTION_TRACE("acpi_video_bus_remove_fs");
 
 	video = (struct acpi_video_bus *)acpi_driver_data(device);
 
@@ -1270,7 +1240,7 @@
 		acpi_device_dir(device) = NULL;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 /* --------------------------------------------------------------------------
@@ -1287,10 +1257,9 @@
 	int status;
 	struct acpi_video_device *data;
 
-	ACPI_FUNCTION_TRACE("acpi_video_bus_get_one_device");
 
 	if (!device || !video)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	status =
 	    acpi_evaluate_integer(device->handle, "_ADR", NULL, &device_id);
@@ -1298,7 +1267,7 @@
 
 		data = kmalloc(sizeof(struct acpi_video_device), GFP_KERNEL);
 		if (!data)
-			return_VALUE(-ENOMEM);
+			return -ENOMEM;
 
 		memset(data, 0, sizeof(struct acpi_video_device));
 
@@ -1349,10 +1318,10 @@
 
 		acpi_video_device_add_fs(device);
 
-		return_VALUE(0);
+		return 0;
 	}
 
-	return_VALUE(-ENOENT);
+	return -ENOENT;
 }
 
 /*
@@ -1395,7 +1364,6 @@
 		       struct acpi_video_device *device)
 {
 	int i;
-	ACPI_FUNCTION_TRACE("acpi_video_device_bind");
 
 #define IDS_VAL(i) video->attached_array[i].value.int_val
 #define IDS_BIND(i) video->attached_array[i].bind_info
@@ -1432,12 +1400,11 @@
 	union acpi_object *dod = NULL;
 	union acpi_object *obj;
 
-	ACPI_FUNCTION_TRACE("acpi_video_device_enumerate");
 
 	status = acpi_evaluate_object(video->handle, "_DOD", NULL, &buffer);
 	if (!ACPI_SUCCESS(status)) {
 		ACPI_EXCEPTION((AE_INFO, status, "Evaluating _DOD"));
-		return_VALUE(status);
+		return status;
 	}
 
 	dod = (union acpi_object *)buffer.pointer;
@@ -1484,7 +1451,7 @@
 	video->attached_count = count;
       out:
 	acpi_os_free(buffer.pointer);
-	return_VALUE(status);
+	return status;
 }
 
 /*
@@ -1509,7 +1476,6 @@
 	unsigned long state;
 	int status = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_video_switch_output");
 
 	list_for_each_safe(node, next, &video->video_device_list) {
 		dev = container_of(node, struct acpi_video_device, entry);
@@ -1540,7 +1506,7 @@
 		break;
 	}
 
-	return_VALUE(status);
+	return status;
 }
 
 static int
@@ -1567,7 +1533,6 @@
 	int status = 0;
 	struct list_head *node, *next;
 
-	ACPI_FUNCTION_TRACE("acpi_video_get_devices");
 
 	acpi_video_device_enumerate(video);
 
@@ -1585,7 +1550,7 @@
 		}
 
 	}
-	return_VALUE(status);
+	return status;
 }
 
 static int acpi_video_bus_put_one_device(struct acpi_video_device *device)
@@ -1593,10 +1558,9 @@
 	acpi_status status;
 	struct acpi_video_bus *video;
 
-	ACPI_FUNCTION_TRACE("acpi_video_bus_put_one_device");
 
 	if (!device || !device->video)
-		return_VALUE(-ENOENT);
+		return -ENOENT;
 
 	video = device->video;
 
@@ -1609,7 +1573,7 @@
 					    ACPI_DEVICE_NOTIFY,
 					    acpi_video_device_notify);
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int acpi_video_bus_put_devices(struct acpi_video_bus *video)
@@ -1617,7 +1581,6 @@
 	int status;
 	struct list_head *node, *next;
 
-	ACPI_FUNCTION_TRACE("acpi_video_bus_put_devices");
 
 	list_for_each_safe(node, next, &video->video_device_list) {
 		struct acpi_video_device *data =
@@ -1636,7 +1599,7 @@
 		kfree(data);
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 /* acpi_video interface */
@@ -1656,14 +1619,13 @@
 	struct acpi_video_bus *video = (struct acpi_video_bus *)data;
 	struct acpi_device *device = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_video_bus_notify");
 	printk("video bus notify\n");
 
 	if (!video)
-		return_VOID;
+		return;
 
 	if (acpi_bus_get_device(handle, &device))
-		return_VOID;
+		return;
 
 	switch (event) {
 	case ACPI_VIDEO_NOTIFY_SWITCH:	/* User request that a switch occur,
@@ -1692,7 +1654,7 @@
 		break;
 	}
 
-	return_VOID;
+	return;
 }
 
 static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data)
@@ -1701,14 +1663,13 @@
 	    (struct acpi_video_device *)data;
 	struct acpi_device *device = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_video_device_notify");
 
 	printk("video device notify\n");
 	if (!video_device)
-		return_VOID;
+		return;
 
 	if (acpi_bus_get_device(handle, &device))
-		return_VOID;
+		return;
 
 	switch (event) {
 	case ACPI_VIDEO_NOTIFY_SWITCH:	/* change in status (cycle output device) */
@@ -1728,7 +1689,7 @@
 				  "Unsupported event [0x%x]\n", event));
 		break;
 	}
-	return_VOID;
+	return;
 }
 
 static int acpi_video_bus_add(struct acpi_device *device)
@@ -1737,14 +1698,13 @@
 	acpi_status status = 0;
 	struct acpi_video_bus *video = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_video_bus_add");
 
 	if (!device)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	video = kmalloc(sizeof(struct acpi_video_bus), GFP_KERNEL);
 	if (!video)
-		return_VALUE(-ENOMEM);
+		return -ENOMEM;
 	memset(video, 0, sizeof(struct acpi_video_bus));
 
 	video->handle = device->handle;
@@ -1791,7 +1751,7 @@
 	if (result)
 		kfree(video);
 
-	return_VALUE(result);
+	return result;
 }
 
 static int acpi_video_bus_remove(struct acpi_device *device, int type)
@@ -1799,10 +1759,9 @@
 	acpi_status status = 0;
 	struct acpi_video_bus *video = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_video_bus_remove");
 
 	if (!device || !acpi_driver_data(device))
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	video = (struct acpi_video_bus *)acpi_driver_data(device);
 
@@ -1818,7 +1777,7 @@
 	kfree(video->attached_array);
 	kfree(video);
 
-	return_VALUE(0);
+	return 0;
 }
 
 static int
@@ -1828,10 +1787,9 @@
 	acpi_handle h_dummy2;
 	acpi_handle h_dummy3;
 
-	ACPI_FUNCTION_TRACE("acpi_video_bus_match");
 
 	if (!device || !driver)
-		return_VALUE(-EINVAL);
+		return -EINVAL;
 
 	/* Since there is no HID, CID for ACPI Video drivers, we have
 	 * to check well known required nodes for each feature we support.
@@ -1840,26 +1798,25 @@
 	/* Does this device able to support video switching ? */
 	if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_DOD", &h_dummy1)) &&
 	    ACPI_SUCCESS(acpi_get_handle(device->handle, "_DOS", &h_dummy2)))
-		return_VALUE(0);
+		return 0;
 
 	/* Does this device able to retrieve a video ROM ? */
 	if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_ROM", &h_dummy1)))
-		return_VALUE(0);
+		return 0;
 
 	/* Does this device able to configure which video head to be POSTed ? */
 	if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_VPO", &h_dummy1)) &&
 	    ACPI_SUCCESS(acpi_get_handle(device->handle, "_GPD", &h_dummy2)) &&
 	    ACPI_SUCCESS(acpi_get_handle(device->handle, "_SPD", &h_dummy3)))
-		return_VALUE(0);
+		return 0;
 
-	return_VALUE(-ENODEV);
+	return -ENODEV;
 }
 
 static int __init acpi_video_init(void)
 {
 	int result = 0;
 
-	ACPI_FUNCTION_TRACE("acpi_video_init");
 
 	/*
 	   acpi_dbg_level = 0xFFFFFFFF;
@@ -1868,27 +1825,26 @@
 
 	acpi_video_dir = proc_mkdir(ACPI_VIDEO_CLASS, acpi_root_dir);
 	if (!acpi_video_dir)
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	acpi_video_dir->owner = THIS_MODULE;
 
 	result = acpi_bus_register_driver(&acpi_video_bus);
 	if (result < 0) {
 		remove_proc_entry(ACPI_VIDEO_CLASS, acpi_root_dir);
-		return_VALUE(-ENODEV);
+		return -ENODEV;
 	}
 
-	return_VALUE(0);
+	return 0;
 }
 
 static void __exit acpi_video_exit(void)
 {
-	ACPI_FUNCTION_TRACE("acpi_video_exit");
 
 	acpi_bus_unregister_driver(&acpi_video_bus);
 
 	remove_proc_entry(ACPI_VIDEO_CLASS, acpi_root_dir);
 
-	return_VOID;
+	return;
 }
 
 module_init(acpi_video_init);