u8 val;
        int err;
 
-       ACPI_FUNCTION_TRACE("acpi_ec_smb_read");
-
        err = ec_read(smbus->base + address, &val);
        if (!err) {
                *data = val;
 {
        int err;
 
-       ACPI_FUNCTION_TRACE("acpi_ec_smb_write");
-
        err = ec_write(smbus->base + address, data);
        return (err);
 }
        unsigned char protocol, len = 0, pec, temp[2] = { 0, 0 };
        int i;
 
-       ACPI_FUNCTION_TRACE("acpi_ec_smb_access");
-
        if (read_write == I2C_SMBUS_READ) {
                protocol = ACPI_EC_SMB_PRTCL_READ;
        } else {
 
 static u32 acpi_ec_smb_func(struct i2c_adapter *adapter)
 {
-       ACPI_FUNCTION_TRACE("acpi_ec_smb_func");
 
        return (I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE |
                I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA |
        struct acpi_ec_hc *ec_hc;
        struct acpi_ec_smbus *smbus;
 
-       ACPI_FUNCTION_TRACE("acpi_ec_hc_add");
-
        if (!device) {
-               return_VALUE(-EINVAL);
+               return -EINVAL;
        }
 
        ec_hc = kmalloc(sizeof(struct acpi_ec_hc), GFP_KERNEL);
        if (!ec_hc) {
-               return_VALUE(-ENOMEM);
+               return -ENOMEM;
        }
        memset(ec_hc, 0, sizeof(struct acpi_ec_hc));
 
        smbus = kmalloc(sizeof(struct acpi_ec_smbus), GFP_KERNEL);
        if (!smbus) {
                kfree(ec_hc);
-               return_VALUE(-ENOMEM);
+               return -ENOMEM;
        }
        memset(smbus, 0, sizeof(struct acpi_ec_smbus));
 
                ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Error obtaining _EC\n"));
                kfree(ec_hc->smbus);
                kfree(smbus);
-               return_VALUE(-EIO);
+               return -EIO;
        }
 
        smbus->ec = acpi_driver_data(device->parent);
                                  "EC SMBus adapter: Failed to register adapter\n"));
                kfree(smbus);
                kfree(ec_hc);
-               return_VALUE(-EIO);
+               return -EIO;
        }
 
        ec_hc->smbus = smbus;
        printk(KERN_INFO PREFIX "%s [%s]\n",
               acpi_device_name(device), acpi_device_bid(device));
 
-       return_VALUE(AE_OK);
+       return AE_OK;
 }
 
 static int acpi_ec_hc_remove(struct acpi_device *device, int type)
 {
        struct acpi_ec_hc *ec_hc;
 
-       ACPI_FUNCTION_TRACE("acpi_ec_hc_remove");
-
        if (!device) {
-               return_VALUE(-EINVAL);
+               return -EINVAL;
        }
        ec_hc = acpi_driver_data(device);
 
        kfree(ec_hc->smbus);
        kfree(ec_hc);
 
-       return_VALUE(AE_OK);
+       return AE_OK;
 }
 
 static int __init acpi_ec_hc_init(void)
 {
        int result;
 
-       ACPI_FUNCTION_TRACE("acpi_ec_hc_init");
        result = acpi_bus_register_driver(&acpi_ec_hc_driver);
        if (result < 0) {
-               return_VALUE(-ENODEV);
+               return -ENODEV;
        }
-       return_VALUE(0);
+       return 0;
 }
 
 static void __exit acpi_ec_hc_exit(void)
 {
-       ACPI_FUNCTION_TRACE("acpi_ec_hc_exit");
        acpi_bus_unregister_driver(&acpi_ec_hc_driver);
 }
 
 struct acpi_ec_hc *acpi_get_ec_hc(struct acpi_device *device)
 {
-       ACPI_FUNCTION_TRACE("acpi_get_ec_hc");
        return ((struct acpi_ec_hc *)acpi_driver_data(device->parent));
 }
 
 
        char *err_str;
        int err_number;
 
-       ACPI_FUNCTION_TRACE("acpi_battery_smbus_err_handler");
-
        data.word = 0;
 
        result = smbus->adapter.algo->
        int result = 0;
        int i;
 
-       ACPI_FUNCTION_TRACE("acpi_sbs_smbus_read_word");
-
        if (err_handler == NULL) {
                err_handler = acpi_battery_smbus_err_handler;
        }
                }
        }
 
-       return_VALUE(result);
+       return result;
 }
 
 static int
        int result = 0;
        int i;
 
-       ACPI_FUNCTION_TRACE("acpi_sbs_smbus_read_str");
-
        if (err_handler == NULL) {
                err_handler = acpi_battery_smbus_err_handler;
        }
                }
        }
 
-       return_VALUE(result);
+       return result;
 }
 
 static int
        int result = 0;
        int i;
 
-       ACPI_FUNCTION_TRACE("acpi_sbs_smbus_write_word");
-
        if (err_handler == NULL) {
                err_handler = acpi_battery_smbus_err_handler;
        }
                }
        }
 
-       return_VALUE(result);
+       return result;
 }
 
 /* --------------------------------------------------------------------------
        char class_saved[20];
        int result = 0;
 
-       ACPI_FUNCTION_TRACE("acpi_sbs_generate_event");
-
        strcpy(bid_saved, acpi_device_bid(device));
        strcpy(class_saved, acpi_device_class(device));
 
        strcpy(acpi_device_bid(device), bid_saved);
        strcpy(acpi_device_class(device), class_saved);
 
-       return_VALUE(result);
+       return result;
 }
 
 static int acpi_battery_get_present(struct acpi_battery *battery)
        int result = 0;
        int is_present = 0;
 
-       ACPI_FUNCTION_TRACE("acpi_battery_get_present");
-
        result = acpi_sbs_smbus_read_word(battery->sbs->smbus,
                                          ACPI_SBSM_SMBUS_ADDR, 0x01,
                                          &state, NULL);
        }
        battery->battery_present = is_present;
 
-       return_VALUE(result);
+       return result;
 }
 
 static int acpi_battery_is_present(struct acpi_battery *battery)
        s16 state;
        int foo;
 
-       ACPI_FUNCTION_TRACE("acpi_battery_select");
-
        if (battery->sbs->sbsm_present) {
 
                /* Take special care not to knobble other nibbles of
        }
 
       end:
-       return_VALUE(result);
+       return result;
 }
 
 static int acpi_sbsm_get_info(struct acpi_sbs *sbs)
        int result = 0;
        s16 battery_system_info;
 
-       ACPI_FUNCTION_TRACE("acpi_sbsm_get_info");
-
        result = acpi_sbs_smbus_read_word(smbus, ACPI_SBSM_SMBUS_ADDR, 0x04,
                                          &battery_system_info, NULL);
        if (result) {
 
       end:
 
-       return_VALUE(result);
+       return result;
 }
 
 static int acpi_battery_get_info(struct acpi_battery *battery)
        s16 battery_mode;
        s16 specification_info;
 
-       ACPI_FUNCTION_TRACE("acpi_battery_get_info");
-
        result = acpi_sbs_smbus_read_word(smbus, ACPI_SB_SMBUS_ADDR, 0x03,
                                          &battery_mode,
                                          &acpi_battery_smbus_err_handler);
        }
 
       end:
-       return_VALUE(result);
+       return result;
 }
 
 static void acpi_update_delay(struct acpi_sbs *sbs)
 {
-       ACPI_FUNCTION_TRACE("acpi_update_delay");
        if (sbs->zombie) {
                return;
        }
        struct acpi_ec_smbus *smbus = battery->sbs->smbus;
        int result = 0;
 
-       ACPI_FUNCTION_TRACE("acpi_battery_get_state");
-
        acpi_update_delay(battery->sbs);
        result = acpi_sbs_smbus_read_word(smbus, ACPI_SB_SMBUS_ADDR, 0x09,
                                          &battery->state.voltage,
        acpi_update_delay(battery->sbs);
 
       end:
-       return_VALUE(result);
+       return result;
 }
 
 static int acpi_battery_get_alarm(struct acpi_battery *battery)
        struct acpi_ec_smbus *smbus = battery->sbs->smbus;
        int result = 0;
 
-       ACPI_FUNCTION_TRACE("acpi_battery_get_alarm");
-
        result = acpi_sbs_smbus_read_word(smbus, ACPI_SB_SMBUS_ADDR, 0x01,
                                          &battery->alarm.remaining_capacity,
                                          &acpi_battery_smbus_err_handler);
 
       end:
 
-       return_VALUE(result);
+       return result;
 }
 
 static int acpi_battery_set_alarm(struct acpi_battery *battery,
        s16 battery_mode;
        int foo;
 
-       ACPI_FUNCTION_TRACE("acpi_battery_set_alarm");
-
        result = acpi_battery_select(battery);
        if (result) {
                ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
 
       end:
 
-       return_VALUE(result);
+       return result;
 }
 
 static int acpi_battery_set_mode(struct acpi_battery *battery)
        int result = 0;
        s16 battery_mode;
 
-       ACPI_FUNCTION_TRACE("acpi_battery_set_mode");
-
        if (capacity_mode == DEF_CAPACITY_UNIT) {
                goto end;
        }
        }
 
       end:
-       return_VALUE(result);
+       return result;
 }
 
 static int acpi_battery_init(struct acpi_battery *battery)
 {
        int result = 0;
 
-       ACPI_FUNCTION_TRACE("acpi_battery_init");
-
        result = acpi_battery_select(battery);
        if (result) {
                ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
        }
 
       end:
-       return_VALUE(result);
+       return result;
 }
 
 static int acpi_ac_get_present(struct acpi_sbs *sbs)
        int result = 0;
        s16 charger_status;
 
-       ACPI_FUNCTION_TRACE("acpi_ac_get_present");
-
        result = acpi_sbs_smbus_read_word(smbus, ACPI_SBC_SMBUS_ADDR, 0x13,
                                          &charger_status, NULL);
 
 
       end:
 
-       return_VALUE(result);
+       return result;
 }
 
 /* --------------------------------------------------------------------------
 {
        struct proc_dir_entry *entry = NULL;
 
-       ACPI_FUNCTION_TRACE("acpi_sbs_generic_add_fs");
-
        if (!*dir) {
                *dir = proc_mkdir(dir_name, parent_dir);
                if (!*dir) {
                        ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
                                          "proc_mkdir() failed\n"));
-                       return_VALUE(-ENODEV);
+                       return -ENODEV;
                }
                (*dir)->owner = THIS_MODULE;
        }
                }
        }
 
-       return_VALUE(0);
+       return 0;
 }
 
 static void
 acpi_sbs_generic_remove_fs(struct proc_dir_entry **dir,
                           struct proc_dir_entry *parent_dir)
 {
-       ACPI_FUNCTION_TRACE("acpi_sbs_generic_remove_fs");
 
        if (*dir) {
                remove_proc_entry(ACPI_SBS_FILE_INFO, *dir);
        int cscale;
        int result = 0;
 
-       ACPI_FUNCTION_TRACE("acpi_battery_read_info");
-
        if (battery->sbs->zombie) {
-               return_VALUE(-ENODEV);
+               return -ENODEV;
        }
 
        down(&sbs_sem);
 
        up(&sbs_sem);
 
-       return_VALUE(result);
+       return result;
 }
 
 static int acpi_battery_info_open_fs(struct inode *inode, struct file *file)
        int cscale;
        int foo;
 
-       ACPI_FUNCTION_TRACE("acpi_battery_read_state");
-
        if (battery->sbs->zombie) {
-               return_VALUE(-ENODEV);
+               return -ENODEV;
        }
 
        down(&sbs_sem);
 
        up(&sbs_sem);
 
-       return_VALUE(result);
+       return result;
 }
 
 static int acpi_battery_state_open_fs(struct inode *inode, struct file *file)
        int result = 0;
        int cscale;
 
-       ACPI_FUNCTION_TRACE("acpi_battery_read_alarm");
-
        if (battery->sbs->zombie) {
-               return_VALUE(-ENODEV);
+               return -ENODEV;
        }
 
        down(&sbs_sem);
 
        up(&sbs_sem);
 
-       return_VALUE(result);
+       return result;
 }
 
 static ssize_t
        char alarm_string[12] = { '\0' };
        int result, old_alarm, new_alarm;
 
-       ACPI_FUNCTION_TRACE("acpi_battery_write_alarm");
-
        if (battery->sbs->zombie) {
-               return_VALUE(-ENODEV);
+               return -ENODEV;
        }
 
        down(&sbs_sem);
        up(&sbs_sem);
 
        if (result) {
-               return_VALUE(result);
+               return result;
        } else {
-               return_VALUE(count);
+               return count;
        }
 }
 
        struct acpi_sbs *sbs = (struct acpi_sbs *)seq->private;
        int result;
 
-       ACPI_FUNCTION_TRACE("acpi_ac_read_state");
-
        if (sbs->zombie) {
-               return_VALUE(-ENODEV);
+               return -ENODEV;
        }
 
        down(&sbs_sem);
 
        up(&sbs_sem);
 
-       return_VALUE(0);
+       return 0;
 }
 
 static int acpi_ac_state_open_fs(struct inode *inode, struct file *file)
        char dir_name[32];
        struct acpi_battery *battery;
 
-       ACPI_FUNCTION_TRACE("acpi_battery_add");
-
        battery = &sbs->battery[id];
 
        battery->alive = 0;
        battery->alive = 1;
 
       end:
-       return_VALUE(result);
+       return result;
 }
 
 static void acpi_battery_remove(struct acpi_sbs *sbs, int id)
 {
-       ACPI_FUNCTION_TRACE("acpi_battery_remove");
 
        if (sbs->battery[id].battery_entry) {
                acpi_sbs_generic_remove_fs(&(sbs->battery[id].battery_entry),
 {
        int result;
 
-       ACPI_FUNCTION_TRACE("acpi_ac_add");
-
        result = acpi_ac_get_present(sbs);
        if (result) {
                ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
 
       end:
 
-       return_VALUE(result);
+       return result;
 }
 
 static void acpi_ac_remove(struct acpi_sbs *sbs)
 {
-       ACPI_FUNCTION_TRACE("acpi_ac_remove");
 
        if (sbs->ac_entry) {
                acpi_sbs_generic_remove_fs(&sbs->ac_entry, acpi_ac_dir);
 
 static void acpi_sbs_update_queue_run(unsigned long data)
 {
-       ACPI_FUNCTION_TRACE("acpi_sbs_update_queue_run");
        acpi_os_execute(OSL_GPE_HANDLER, acpi_sbs_update_queue, (void *)data);
 }
 
        int do_battery_init, do_ac_init;
        s16 old_remaining_capacity;
 
-       ACPI_FUNCTION_TRACE("acpi_sbs_update_run");
-
        if (sbs->zombie) {
                goto end;
        }
        }
 
       end:
-       return_VALUE(result);
+       return result;
 }
 
 static void acpi_sbs_update_queue(void *data)
        unsigned long delay = -1;
        int result;
 
-       ACPI_FUNCTION_TRACE("acpi_sbs_update_queue");
-
        if (sbs->zombie) {
                goto end;
        }
        int id, cnt;
        acpi_status status = AE_OK;
 
-       ACPI_FUNCTION_TRACE("acpi_sbs_add");
-
        sbs = kmalloc(sizeof(struct acpi_sbs), GFP_KERNEL);
        if (!sbs) {
                ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "kmalloc() failed\n"));
-               return_VALUE(-ENOMEM);
+               return -ENOMEM;
        }
        memset(sbs, 0, sizeof(struct acpi_sbs));
 
                }
        }
 
-       return_VALUE(result);
+       return result;
 }
 
 int acpi_sbs_remove(struct acpi_device *device, int type)
        struct acpi_sbs *sbs = (struct acpi_sbs *)acpi_driver_data(device);
        int id;
 
-       ACPI_FUNCTION_TRACE("acpi_sbs_remove");
-
        if (!device || !sbs) {
-               return_VALUE(-EINVAL);
+               return -EINVAL;
        }
 
        sbs->zombie = 1;
 
        kfree(sbs);
 
-       return_VALUE(0);
+       return 0;
 }
 
 static int __init acpi_sbs_init(void)
 {
        int result = 0;
 
-       ACPI_FUNCTION_TRACE("acpi_sbs_init");
-
        init_MUTEX(&sbs_sem);
 
        if (capacity_mode != DEF_CAPACITY_UNIT
                ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "acpi_sbs_init: "
                                  "invalid capacity_mode = %d\n",
                                  capacity_mode));
-               return_VALUE(-EINVAL);
+               return -EINVAL;
        }
 
        acpi_ac_dir = acpi_lock_ac_dir();
        if (!acpi_ac_dir) {
                ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
                                  "acpi_lock_ac_dir() failed\n"));
-               return_VALUE(-ENODEV);
+               return -ENODEV;
        }
 
        acpi_battery_dir = acpi_lock_battery_dir();
        if (!acpi_battery_dir) {
                ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
                                  "acpi_lock_battery_dir() failed\n"));
-               return_VALUE(-ENODEV);
+               return -ENODEV;
        }
 
        result = acpi_bus_register_driver(&acpi_sbs_driver);
        if (result < 0) {
                ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
                                  "acpi_bus_register_driver() failed\n"));
-               return_VALUE(-ENODEV);
+               return -ENODEV;
        }
 
-       return_VALUE(0);
+       return 0;
 }
 
 static void __exit acpi_sbs_exit(void)
 {
-       ACPI_FUNCTION_TRACE("acpi_sbs_exit");
 
        acpi_bus_unregister_driver(&acpi_sbs_driver);
 
        acpi_unlock_battery_dir(acpi_battery_dir);
        acpi_battery_dir = NULL;
 
-       return_VOID;
+       return;
 }
 
 module_init(acpi_sbs_init);