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driver core: bus_type: add drv_groups 

attribute groups are much more flexible than just a list of attributes,
due to their support for visibility of the attributes, and binary
attributes. Add drv_groups to struct bus_type which should be used
instead of drv_attrs.

drv_attrs will be removed from the structure soon.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2013-08-08 15:22:56 -07:00
parent fa6fdb33b4
commit ed0617b5c0
4 changed files with 17 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/base/base.h
View File

@ -119,6 +119,11 @@ static inline int driver_match_device(struct device_driver *drv,
return drv->bus->match ? drv->bus->match(dev, drv) : 1;
}
extern int driver_add_groups(struct device_driver *drv,
const struct attribute_group **groups);
extern void driver_remove_groups(struct device_driver *drv,
const struct attribute_group **groups);
extern int device_add_groups(struct device *dev,
const struct attribute_group **groups);
extern void device_remove_groups(struct device *dev,

5
drivers/base/bus.c
View File

@ -725,6 +725,10 @@ int bus_add_driver(struct device_driver *drv)
printk(KERN_ERR "%s: driver_add_attrs(%s) failed\n",
__func__, drv->name);
}
error = driver_add_groups(drv, bus->drv_groups);
if (error)
printk(KERN_ERR "%s: driver_create_groups(%s) failed\n",
__func__, drv->name);
if (!drv->suppress_bind_attrs) {
error = add_bind_files(drv);
@ -762,6 +766,7 @@ void bus_remove_driver(struct device_driver *drv)
if (!drv->suppress_bind_attrs)
remove_bind_files(drv);
driver_remove_attrs(drv->bus, drv);
driver_remove_groups(drv, drv->bus->drv_groups);
driver_remove_file(drv, &driver_attr_uevent);
klist_remove(&drv->p->knode_bus);
pr_debug("bus: '%s': remove driver %s\n", drv->bus->name, drv->name);

4
drivers/base/driver.c
View File

@ -123,7 +123,7 @@ void driver_remove_file(struct device_driver *drv,
}
EXPORT_SYMBOL_GPL(driver_remove_file);
static int driver_add_groups(struct device_driver *drv,
int driver_add_groups(struct device_driver *drv,
const struct attribute_group **groups)
{
int error = 0;
@ -143,7 +143,7 @@ static int driver_add_groups(struct device_driver *drv,
return error;
}
static void driver_remove_groups(struct device_driver *drv,
void driver_remove_groups(struct device_driver *drv,
const struct attribute_group **groups)
{
int i;

4
include/linux/device.h
View File

@ -67,6 +67,7 @@ extern void bus_remove_file(struct bus_type *, struct bus_attribute *);
* @dev_attrs: Default attributes of the devices on the bus.
* @drv_attrs: Default attributes of the device drivers on the bus.
* @dev_groups: Default attributes of the devices on the bus.
* @drv_groups: Default attributes of the device drivers on the bus.
* @match: Called, perhaps multiple times, whenever a new device or driver
* is added for this bus. It should return a nonzero value if the
* given device can be handled by the given driver.
@ -106,8 +107,9 @@ struct bus_type {
struct device *dev_root;
struct bus_attribute *bus_attrs;
struct device_attribute *dev_attrs; /* use dev_groups instead */
struct driver_attribute *drv_attrs;
struct driver_attribute *drv_attrs; /* use drv_groups instead */
const struct attribute_group **dev_groups;
const struct attribute_group **drv_groups;
int (*match)(struct device *dev, struct device_driver *drv);
int (*uevent)(struct device *dev, struct kobj_uevent_env *env);