[PATCH 16/16] driver-core: remove struct bus_type.dev_attrs

[Greg Kroah-Hartman]

Now that all in-kernel users of bus_type.dev_attrs have been converted
to use dev_groups instead, the dev_attrs field, and logic surrounding
it, can be removed.

Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/base/bus.c     | 37 +------------------------------------
 include/linux/device.h |  2 --
 2 files changed, 1 insertion(+), 38 deletions(-)

diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 6470eb8088f4..66efc4b806c2 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -466,35 +466,6 @@ int bus_for_each_drv(struct bus_type *bus, struct 
device_driver *start,
 }
 EXPORT_SYMBOL_GPL(bus_for_each_drv);
 
-static int device_add_attrs(struct bus_type *bus, struct device *dev)
-{
-       int error = 0;
-       int i;
-
-       if (!bus->dev_attrs)
-               return 0;
-
-       for (i = 0; bus->dev_attrs[i].attr.name; i++) {
-               error = device_create_file(dev, &bus->dev_attrs[i]);
-               if (error) {
-                       while (--i >= 0)
-                               device_remove_file(dev, &bus->dev_attrs[i]);
-                       break;
-               }
-       }
-       return error;
-}
-
-static void device_remove_attrs(struct bus_type *bus, struct device *dev)
-{
-       int i;
-
-       if (bus->dev_attrs) {
-               for (i = 0; bus->dev_attrs[i].attr.name; i++)
-                       device_remove_file(dev, &bus->dev_attrs[i]);
-       }
-}
-
 /**
  * bus_add_device - add device to bus
  * @dev: device being added
@@ -510,12 +481,9 @@ int bus_add_device(struct device *dev)
 
        if (bus) {
                pr_debug("bus: '%s': add device %s\n", bus->name, 
dev_name(dev));
-               error = device_add_attrs(bus, dev);
-               if (error)
-                       goto out_put;
                error = device_add_groups(dev, bus->dev_groups);
                if (error)
-                       goto out_id;
+                       goto out_put;
                error = sysfs_create_link(&bus->p->devices_kset->kobj,
                                                &dev->kobj, dev_name(dev));
                if (error)
@@ -532,8 +500,6 @@ int bus_add_device(struct device *dev)
        sysfs_remove_link(&bus->p->devices_kset->kobj, dev_name(dev));
 out_groups:
        device_remove_groups(dev, bus->dev_groups);
-out_id:
-       device_remove_attrs(bus, dev);
 out_put:
        bus_put(dev->bus);
        return error;
@@ -590,7 +556,6 @@ void bus_remove_device(struct device *dev)
        sysfs_remove_link(&dev->kobj, "subsystem");
        sysfs_remove_link(&dev->bus->p->devices_kset->kobj,
                          dev_name(dev));
-       device_remove_attrs(dev->bus, dev);
        device_remove_groups(dev, dev->bus->dev_groups);
        if (klist_node_attached(&dev->p->knode_bus))
                klist_del(&dev->p->knode_bus);
diff --git a/include/linux/device.h b/include/linux/device.h
index 9ef518af5515..a04860932ceb 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -66,7 +66,6 @@ extern void bus_remove_file(struct bus_type *, struct 
bus_attribute *);
  * @name:      The name of the bus.
  * @dev_name:  Used for subsystems to enumerate devices like ("foo%u", 
dev->id).
  * @dev_root:  Default device to use as the parent.
- * @dev_attrs: Default attributes of the devices on the bus.
  * @bus_groups:        Default attributes of the bus.
  * @dev_groups:        Default attributes of the devices on the bus.
  * @drv_groups: Default attributes of the device drivers on the bus.
@@ -112,7 +111,6 @@ struct bus_type {
        const char              *name;
        const char              *dev_name;
        struct device           *dev_root;
-       struct device_attribute *dev_attrs;     /* use dev_groups instead */
        const struct attribute_group **bus_groups;
        const struct attribute_group **dev_groups;
        const struct attribute_group **drv_groups;
-- 
2.13.0