[PATCH] I2O: remove i2o_device_class

I2O: cleanup - remove i2o_device_class

I2O devices reside on their own bus so there should be no reason
to also have i2c_device class that mirros i2o bus.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

4 files changed, 17 insertions, 70 deletions

diff --git a/drivers/message/i2o/core.h b/drivers/message/i2o/core.h
index c5bcfd70f711..9eefedb16211 100644
--- a/drivers/message/i2o/core.h
+++ b/drivers/message/i2o/core.h
@@ -36,9 +36,6 @@ extern void __exit i2o_pci_exit(void);
 extern void i2o_device_remove(struct i2o_device *);
 extern int i2o_device_parse_lct(struct i2o_controller *);
 
-extern int i2o_device_init(void);
-extern void i2o_device_exit(void);
-
 /* IOP */
 extern struct i2o_controller *i2o_iop_alloc(void);
 extern void i2o_iop_free(struct i2o_controller *);
diff --git a/drivers/message/i2o/device.c b/drivers/message/i2o/device.c
index 551d582e2887..d9879965eb50 100644
--- a/drivers/message/i2o/device.c
+++ b/drivers/message/i2o/device.c
@@ -138,17 +138,6 @@ static void i2o_device_release(struct device *dev)
         kfree(i2o_dev);
 }
 
-/**
- *      i2o_device_class_release - I2O class device release function
- *      @cd: I2O class device which is added to the I2O device class
- *
- *      The function is just a stub - memory will be freed when
- *      associated I2O device is released.
- */
-static void i2o_device_class_release(struct class_device *cd)
-{
-        /* empty */
-}
 
 /**
  *      i2o_device_class_show_class_id - Displays class id of I2O device
@@ -157,12 +146,13 @@ static void i2o_device_class_release(struct class_device *cd)
  *
  *      Returns the number of bytes which are printed into the buffer.
  */
-static ssize_t i2o_device_class_show_class_id(struct class_device *cd,
-                                              char *buf)
+static ssize_t i2o_device_show_class_id(struct device *dev,
+                                        struct device_attribute *attr,
+                                        char *buf)
 {
-        struct i2o_device *dev = to_i2o_device(cd->dev);
+        struct i2o_device *i2o_dev = to_i2o_device(dev);
 
-        sprintf(buf, "0x%03x\n", dev->lct_data.class_id);
+        sprintf(buf, "0x%03x\n", i2o_dev->lct_data.class_id);
         return strlen(buf) + 1;
 }
 
@@ -173,27 +163,22 @@ static ssize_t i2o_device_class_show_class_id(struct class_device *cd,
  *
  *      Returns the number of bytes which are printed into the buffer.
  */
-static ssize_t i2o_device_class_show_tid(struct class_device *cd, char *buf)
+static ssize_t i2o_device_show_tid(struct device *dev,
+                                   struct device_attribute *attr,
+                                   char *buf)
 {
-        struct i2o_device *dev = to_i2o_device(cd->dev);
+        struct i2o_device *i2o_dev = to_i2o_device(dev);
 
-        sprintf(buf, "0x%03x\n", dev->lct_data.tid);
+        sprintf(buf, "0x%03x\n", i2o_dev->lct_data.tid);
         return strlen(buf) + 1;
 }
 
-static struct class_device_attribute i2o_device_class_attrs[] = {
-        __ATTR(class_id, S_IRUGO, i2o_device_class_show_class_id, NULL),
-        __ATTR(tid, S_IRUGO, i2o_device_class_show_tid, NULL),
+struct device_attribute i2o_device_attrs[] = {
+        __ATTR(class_id, S_IRUGO, i2o_device_show_class_id, NULL),
+        __ATTR(tid, S_IRUGO, i2o_device_show_tid, NULL),
         __ATTR_NULL
 };
 
-/* I2O device class */
-static struct class i2o_device_class = {
-        .name                   = "i2o_device",
-        .release                = i2o_device_class_release,
-        .class_dev_attrs        = i2o_device_class_attrs,
-};
-
 /**
  *      i2o_device_alloc - Allocate a I2O device and initialize it
  *
@@ -217,8 +202,6 @@ static struct i2o_device *i2o_device_alloc(void)
 
         dev->device.bus = &i2o_bus_type;
         dev->device.release = &i2o_device_release;
-        dev->classdev.class = &i2o_device_class;
-        dev->classdev.dev = &dev->device;
 
         return dev;
 }
@@ -311,17 +294,12 @@ static struct i2o_device *i2o_device_add(struct i2o_controller *c,
         snprintf(dev->device.bus_id, BUS_ID_SIZE, "%d:%03x", c->unit,
                  dev->lct_data.tid);
 
-        snprintf(dev->classdev.class_id, BUS_ID_SIZE, "%d:%03x", c->unit,
-                 dev->lct_data.tid);
-
         dev->device.parent = &c->device;
 
         device_register(&dev->device);
 
         list_add_tail(&dev->list, &c->devices);
 
-        class_device_register(&dev->classdev);
-
         i2o_setup_sysfs_links(dev);
 
         i2o_driver_notify_device_add_all(dev);
@@ -343,7 +321,6 @@ void i2o_device_remove(struct i2o_device *i2o_dev)
 {
         i2o_driver_notify_device_remove_all(i2o_dev);
         i2o_remove_sysfs_links(i2o_dev);
-        class_device_unregister(&i2o_dev->classdev);
         list_del(&i2o_dev->list);
         device_unregister(&i2o_dev->device);
 }
@@ -598,28 +575,6 @@ int i2o_parm_table_get(struct i2o_device *dev, int oper, int group,
         return size;
 }
 
-/**
- *      i2o_device_init - Initialize I2O devices
- *
- *      Registers the I2O device class.
- *
- *      Returns 0 on success or negative error code on failure.
- */
-int i2o_device_init(void)
-{
-        return class_register(&i2o_device_class);
-}
-
-/**
- *      i2o_device_exit - I2O devices exit function
- *
- *      Unregisters the I2O device class.
- */
-void i2o_device_exit(void)
-{
-        class_unregister(&i2o_device_class);
-}
-
 EXPORT_SYMBOL(i2o_device_claim);
 EXPORT_SYMBOL(i2o_device_claim_release);
 EXPORT_SYMBOL(i2o_parm_field_get);
diff --git a/drivers/message/i2o/driver.c b/drivers/message/i2o/driver.c
index 739bfdef0c6d..0079a4be0af2 100644
--- a/drivers/message/i2o/driver.c
+++ b/drivers/message/i2o/driver.c
@@ -58,9 +58,12 @@ static int i2o_bus_match(struct device *dev, struct device_driver *drv)
 };
 
 /* I2O bus type */
+extern struct device_attribute i2o_device_attrs[];
+
 struct bus_type i2o_bus_type = {
         .name = "i2o",
         .match = i2o_bus_match,
+        .dev_attrs = i2o_device_attrs,
 };
 
 /**
diff --git a/drivers/message/i2o/iop.c b/drivers/message/i2o/iop.c
index 15deb45ce995..176fb573ea26 100644
--- a/drivers/message/i2o/iop.c
+++ b/drivers/message/i2o/iop.c
@@ -1243,14 +1243,10 @@ static int __init i2o_iop_init(void)
 
         printk(KERN_INFO OSM_DESCRIPTION " v" OSM_VERSION "\n");
 
-        rc = i2o_device_init();
-        if (rc)
-                goto exit;
-
         i2o_controller_class = class_create(THIS_MODULE, "i2o_controller");
         if (IS_ERR(i2o_controller_class)) {
                 osm_err("can't register class i2o_controller\n");
-                goto device_exit;
+                goto exit;
         }
 
         if ((rc = i2o_driver_init()))
@@ -1273,9 +1269,6 @@ static int __init i2o_iop_init(void)
       class_exit:
         class_destroy(i2o_controller_class);
 
-      device_exit:
-        i2o_device_exit();
-
       exit:
         return rc;
 }
@@ -1291,7 +1284,6 @@ static void __exit i2o_iop_exit(void)
         i2o_exec_exit();
         i2o_driver_exit();
         class_destroy(i2o_controller_class);
-        i2o_device_exit();
 };
 
 module_init(i2o_iop_init);