Re: [PATCH 1/2] I2O: remove i2o_device_class

Dmitry Torokhov
2005-09-13T04:35:38Z

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>
---

drivers/message/i2o/core.h | 3 -
drivers/message/i2o/device.c | 71 +++++++------------------------------------
drivers/message/i2o/driver.c | 3 +
drivers/message/i2o/iop.c | 10 ------
include/linux/i2o.h | 2 -
5 files changed, 17 insertions(+), 72 deletions(-)

Index: work/drivers/message/i2o/device.c
===================================================================
--- work.orig/drivers/message/i2o/device.c
+++ work/drivers/message/i2o/device.c
@@ -138,17 +138,6 @@ static void i2o_device_release(struct de
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(str
*
* 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_cla
*
* 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_all

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
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_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
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);
Index: work/drivers/message/i2o/driver.c
===================================================================
--- work.orig/drivers/message/i2o/driver.c
+++ work/drivers/message/i2o/driver.c
@@ -58,9 +58,12 @@ static int i2o_bus_match(struct device *
};

/* 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,
};

/**
Index: work/include/linux/i2o.h
===================================================================
--- work.orig/include/linux/i2o.h
+++ work/include/linux/i2o.h
@@ -66,8 +66,6 @@ struct i2o_device {
struct device device;

struct semaphore lock; /* device lock */
-
- struct class_device classdev; /* i2o device class */
};

/*
Index: work/drivers/message/i2o/core.h
===================================================================
--- work.orig/drivers/message/i2o/core.h
+++ work/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 *);
Index: work/drivers/message/i2o/iop.c
===================================================================
--- work.orig/drivers/message/i2o/iop.c
+++ work/drivers/message/i2o/iop.c
@@ -1246,13 +1246,9 @@ static int __init i2o_iop_init(void)

printk(KERN_INFO OSM_DESCRIPTION " v" OSM_VERSION "\n");

- rc = i2o_device_init();
- if (rc)
- goto exit;
-
if ((rc = class_register(&i2o_controller_class))) {
osm_err("can't register class i2o_controller\n");
- goto device_exit;
+ goto exit;
}

if ((rc = i2o_driver_init()))
@@ -1275,9 +1271,6 @@ static int __init i2o_iop_init(void)
class_exit:
class_unregister(&i2o_controller_class);

- device_exit:
- i2o_device_exit();
-
exit:
return rc;
}
@@ -1293,7 +1286,6 @@ static void __exit i2o_iop_exit(void)
i2o_exec_exit();
i2o_driver_exit();
class_unregister(&i2o_controller_class);
- i2o_device_exit();
};

module_init(i2o_iop_init);