mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-17 06:17:35 +00:00
[PATCH] I2O: remove class interface
I2O: remove i2o_device_class_interface misuse The intent of class interfaces was to provide different 'views' at the same object, not just run some code every time a new class device is registered. Kill interface structure, make class core register default attributes and set up sysfs links right when registering class devices. Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Dmitry Torokhov
Greg Kroah-Hartman
parent
dbe9035d4f
commit
4f5ca09e0b
@ -45,7 +45,7 @@ static inline int i2o_device_issue_claim(struct i2o_device *dev, u32 cmd,
|
||||
writel(type, &msg->body[0]);
|
||||
|
||||
return i2o_msg_post_wait(dev->iop, m, 60);
|
||||
};
|
||||
}
|
||||
|
||||
/**
|
||||
* i2o_device_claim - claim a device for use by an OSM
|
||||
@ -73,7 +73,7 @@ int i2o_device_claim(struct i2o_device *dev)
|
||||
up(&dev->lock);
|
||||
|
||||
return rc;
|
||||
};
|
||||
}
|
||||
|
||||
/**
|
||||
* i2o_device_claim_release - release a device that the OSM is using
|
||||
@ -119,7 +119,8 @@ int i2o_device_claim_release(struct i2o_device *dev)
|
||||
up(&dev->lock);
|
||||
|
||||
return rc;
|
||||
};
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* i2o_device_release - release the memory for a I2O device
|
||||
@ -135,39 +136,62 @@ static void i2o_device_release(struct device *dev)
|
||||
pr_debug("i2o: device %s released\n", dev->bus_id);
|
||||
|
||||
kfree(i2o_dev);
|
||||
};
|
||||
}
|
||||
|
||||
/**
|
||||
* i2o_device_class_release - Remove I2O device attributes
|
||||
* i2o_device_class_release - I2O class device release function
|
||||
* @cd: I2O class device which is added to the I2O device class
|
||||
*
|
||||
* Removes attributes from the I2O device again. Also search each device
|
||||
* on the controller for I2O devices which refert to this device as parent
|
||||
* or user and remove this links also.
|
||||
* 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)
|
||||
{
|
||||
struct i2o_device *i2o_dev, *tmp;
|
||||
struct i2o_controller *c;
|
||||
/* empty */
|
||||
}
|
||||
|
||||
i2o_dev = to_i2o_device(cd->dev);
|
||||
c = i2o_dev->iop;
|
||||
/**
|
||||
* i2o_device_class_show_class_id - Displays class id of I2O device
|
||||
* @cd: class device of which the class id should be displayed
|
||||
* @buf: buffer into which the class id should be printed
|
||||
*
|
||||
* 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)
|
||||
{
|
||||
struct i2o_device *dev = to_i2o_device(cd->dev);
|
||||
|
||||
sysfs_remove_link(&i2o_dev->device.kobj, "parent");
|
||||
sysfs_remove_link(&i2o_dev->device.kobj, "user");
|
||||
sprintf(buf, "0x%03x\n", dev->lct_data.class_id);
|
||||
return strlen(buf) + 1;
|
||||
}
|
||||
|
||||
list_for_each_entry(tmp, &c->devices, list) {
|
||||
if (tmp->lct_data.parent_tid == i2o_dev->lct_data.tid)
|
||||
sysfs_remove_link(&tmp->device.kobj, "parent");
|
||||
if (tmp->lct_data.user_tid == i2o_dev->lct_data.tid)
|
||||
sysfs_remove_link(&tmp->device.kobj, "user");
|
||||
}
|
||||
/**
|
||||
* i2o_device_class_show_tid - Displays TID of I2O device
|
||||
* @cd: class device of which the TID should be displayed
|
||||
* @buf: buffer into which the class id should be printed
|
||||
*
|
||||
* 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)
|
||||
{
|
||||
struct i2o_device *dev = to_i2o_device(cd->dev);
|
||||
|
||||
sprintf(buf, "0x%03x\n", 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),
|
||||
__ATTR_NULL
|
||||
};
|
||||
|
||||
/* I2O device class */
|
||||
static struct class i2o_device_class = {
|
||||
.name = "i2o_device",
|
||||
.release = i2o_device_class_release
|
||||
.release = i2o_device_class_release,
|
||||
.class_dev_attrs = i2o_device_class_attrs,
|
||||
};
|
||||
|
||||
/**
|
||||
@ -197,7 +221,67 @@ static struct i2o_device *i2o_device_alloc(void)
|
||||
dev->classdev.dev = &dev->device;
|
||||
|
||||
return dev;
|
||||
};
|
||||
}
|
||||
|
||||
/**
|
||||
* i2o_setup_sysfs_links - Adds attributes to the I2O device
|
||||
* @cd: I2O class device which is added to the I2O device class
|
||||
*
|
||||
* This function get called when a I2O device is added to the class. It
|
||||
* creates the attributes for each device and creates user/parent symlink
|
||||
* if necessary.
|
||||
*
|
||||
* Returns 0 on success or negative error code on failure.
|
||||
*/
|
||||
static void i2o_setup_sysfs_links(struct i2o_device *i2o_dev)
|
||||
{
|
||||
struct i2o_controller *c = i2o_dev->iop;
|
||||
struct i2o_device *tmp;
|
||||
|
||||
/* create user entries for this device */
|
||||
tmp = i2o_iop_find_device(i2o_dev->iop, i2o_dev->lct_data.user_tid);
|
||||
if (tmp && tmp != i2o_dev)
|
||||
sysfs_create_link(&i2o_dev->device.kobj,
|
||||
&tmp->device.kobj, "user");
|
||||
|
||||
/* create user entries refering to this device */
|
||||
list_for_each_entry(tmp, &c->devices, list)
|
||||
if (tmp->lct_data.user_tid == i2o_dev->lct_data.tid &&
|
||||
tmp != i2o_dev)
|
||||
sysfs_create_link(&tmp->device.kobj,
|
||||
&i2o_dev->device.kobj, "user");
|
||||
|
||||
/* create parent entries for this device */
|
||||
tmp = i2o_iop_find_device(i2o_dev->iop, i2o_dev->lct_data.parent_tid);
|
||||
if (tmp && tmp != i2o_dev)
|
||||
sysfs_create_link(&i2o_dev->device.kobj,
|
||||
&tmp->device.kobj, "parent");
|
||||
|
||||
/* create parent entries refering to this device */
|
||||
list_for_each_entry(tmp, &c->devices, list)
|
||||
if (tmp->lct_data.parent_tid == i2o_dev->lct_data.tid &&
|
||||
tmp != i2o_dev)
|
||||
sysfs_create_link(&tmp->device.kobj,
|
||||
&i2o_dev->device.kobj, "parent");
|
||||
}
|
||||
|
||||
static void i2o_remove_sysfs_links(struct i2o_device *i2o_dev)
|
||||
{
|
||||
struct i2o_controller *c = i2o_dev->iop;
|
||||
struct i2o_device *tmp;
|
||||
|
||||
sysfs_remove_link(&i2o_dev->device.kobj, "parent");
|
||||
sysfs_remove_link(&i2o_dev->device.kobj, "user");
|
||||
|
||||
list_for_each_entry(tmp, &c->devices, list) {
|
||||
if (tmp->lct_data.parent_tid == i2o_dev->lct_data.tid)
|
||||
sysfs_remove_link(&tmp->device.kobj, "parent");
|
||||
if (tmp->lct_data.user_tid == i2o_dev->lct_data.tid)
|
||||
sysfs_remove_link(&tmp->device.kobj, "user");
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
/**
|
||||
* i2o_device_add - allocate a new I2O device and add it to the IOP
|
||||
@ -222,6 +306,7 @@ static struct i2o_device *i2o_device_add(struct i2o_controller *c,
|
||||
}
|
||||
|
||||
dev->lct_data = *entry;
|
||||
dev->iop = c;
|
||||
|
||||
snprintf(dev->device.bus_id, BUS_ID_SIZE, "%d:%03x", c->unit,
|
||||
dev->lct_data.tid);
|
||||
@ -229,7 +314,6 @@ static struct i2o_device *i2o_device_add(struct i2o_controller *c,
|
||||
snprintf(dev->classdev.class_id, BUS_ID_SIZE, "%d:%03x", c->unit,
|
||||
dev->lct_data.tid);
|
||||
|
||||
dev->iop = c;
|
||||
dev->device.parent = &c->device;
|
||||
|
||||
device_register(&dev->device);
|
||||
@ -238,12 +322,14 @@ static struct i2o_device *i2o_device_add(struct i2o_controller *c,
|
||||
|
||||
class_device_register(&dev->classdev);
|
||||
|
||||
i2o_setup_sysfs_links(dev);
|
||||
|
||||
i2o_driver_notify_device_add_all(dev);
|
||||
|
||||
pr_debug("i2o: device %s added\n", dev->device.bus_id);
|
||||
|
||||
return dev;
|
||||
};
|
||||
}
|
||||
|
||||
/**
|
||||
* i2o_device_remove - remove an I2O device from the I2O core
|
||||
@ -256,10 +342,11 @@ static struct i2o_device *i2o_device_add(struct i2o_controller *c,
|
||||
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);
|
||||
};
|
||||
}
|
||||
|
||||
/**
|
||||
* i2o_device_parse_lct - Parse a previously fetched LCT and create devices
|
||||
@ -337,99 +424,8 @@ int i2o_device_parse_lct(struct i2o_controller *c)
|
||||
up(&c->lct_lock);
|
||||
|
||||
return 0;
|
||||
};
|
||||
}
|
||||
|
||||
/**
|
||||
* i2o_device_class_show_class_id - Displays class id of I2O device
|
||||
* @cd: class device of which the class id should be displayed
|
||||
* @buf: buffer into which the class id should be printed
|
||||
*
|
||||
* 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)
|
||||
{
|
||||
struct i2o_device *dev = to_i2o_device(cd->dev);
|
||||
|
||||
sprintf(buf, "0x%03x\n", dev->lct_data.class_id);
|
||||
return strlen(buf) + 1;
|
||||
};
|
||||
|
||||
/**
|
||||
* i2o_device_class_show_tid - Displays TID of I2O device
|
||||
* @cd: class device of which the TID should be displayed
|
||||
* @buf: buffer into which the class id should be printed
|
||||
*
|
||||
* 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)
|
||||
{
|
||||
struct i2o_device *dev = to_i2o_device(cd->dev);
|
||||
|
||||
sprintf(buf, "0x%03x\n", dev->lct_data.tid);
|
||||
return strlen(buf) + 1;
|
||||
};
|
||||
|
||||
/* I2O device class attributes */
|
||||
static CLASS_DEVICE_ATTR(class_id, S_IRUGO, i2o_device_class_show_class_id,
|
||||
NULL);
|
||||
static CLASS_DEVICE_ATTR(tid, S_IRUGO, i2o_device_class_show_tid, NULL);
|
||||
|
||||
/**
|
||||
* i2o_device_class_add - Adds attributes to the I2O device
|
||||
* @cd: I2O class device which is added to the I2O device class
|
||||
*
|
||||
* This function get called when a I2O device is added to the class. It
|
||||
* creates the attributes for each device and creates user/parent symlink
|
||||
* if necessary.
|
||||
*
|
||||
* Returns 0 on success or negative error code on failure.
|
||||
*/
|
||||
static int i2o_device_class_add(struct class_device *cd)
|
||||
{
|
||||
struct i2o_device *i2o_dev, *tmp;
|
||||
struct i2o_controller *c;
|
||||
|
||||
i2o_dev = to_i2o_device(cd->dev);
|
||||
c = i2o_dev->iop;
|
||||
|
||||
class_device_create_file(cd, &class_device_attr_class_id);
|
||||
class_device_create_file(cd, &class_device_attr_tid);
|
||||
|
||||
/* create user entries for this device */
|
||||
tmp = i2o_iop_find_device(i2o_dev->iop, i2o_dev->lct_data.user_tid);
|
||||
if (tmp && (tmp != i2o_dev))
|
||||
sysfs_create_link(&i2o_dev->device.kobj, &tmp->device.kobj,
|
||||
"user");
|
||||
|
||||
/* create user entries refering to this device */
|
||||
list_for_each_entry(tmp, &c->devices, list)
|
||||
if ((tmp->lct_data.user_tid == i2o_dev->lct_data.tid)
|
||||
&& (tmp != i2o_dev))
|
||||
sysfs_create_link(&tmp->device.kobj,
|
||||
&i2o_dev->device.kobj, "user");
|
||||
|
||||
/* create parent entries for this device */
|
||||
tmp = i2o_iop_find_device(i2o_dev->iop, i2o_dev->lct_data.parent_tid);
|
||||
if (tmp && (tmp != i2o_dev))
|
||||
sysfs_create_link(&i2o_dev->device.kobj, &tmp->device.kobj,
|
||||
"parent");
|
||||
|
||||
/* create parent entries refering to this device */
|
||||
list_for_each_entry(tmp, &c->devices, list)
|
||||
if ((tmp->lct_data.parent_tid == i2o_dev->lct_data.tid)
|
||||
&& (tmp != i2o_dev))
|
||||
sysfs_create_link(&tmp->device.kobj,
|
||||
&i2o_dev->device.kobj, "parent");
|
||||
|
||||
return 0;
|
||||
};
|
||||
|
||||
/* I2O device class interface */
|
||||
static struct class_interface i2o_device_class_interface = {
|
||||
.class = &i2o_device_class,
|
||||
.add = i2o_device_class_add
|
||||
};
|
||||
|
||||
/*
|
||||
* Run time support routines
|
||||
@ -611,14 +607,8 @@ int i2o_parm_table_get(struct i2o_device *dev, int oper, int group,
|
||||
*/
|
||||
int i2o_device_init(void)
|
||||
{
|
||||
int rc;
|
||||
|
||||
rc = class_register(&i2o_device_class);
|
||||
if (rc)
|
||||
return rc;
|
||||
|
||||
return class_interface_register(&i2o_device_class_interface);
|
||||
};
|
||||
return class_register(&i2o_device_class);
|
||||
}
|
||||
|
||||
/**
|
||||
* i2o_device_exit - I2O devices exit function
|
||||
@ -627,9 +617,8 @@ int i2o_device_init(void)
|
||||
*/
|
||||
void i2o_device_exit(void)
|
||||
{
|
||||
class_interface_register(&i2o_device_class_interface);
|
||||
class_unregister(&i2o_device_class);
|
||||
};
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(i2o_device_claim);
|
||||
EXPORT_SYMBOL(i2o_device_claim_release);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user