diff options
| -rw-r--r-- | drivers/base/base.h | 4 | ||||
| -rw-r--r-- | drivers/base/bus.c | 40 | ||||
| -rw-r--r-- | include/linux/device.h | 1 |
3 files changed, 14 insertions, 31 deletions
diff --git a/drivers/base/base.h b/drivers/base/base.h index b676f8f801f8..8af0bb2c0aa8 100644 --- a/drivers/base/base.h +++ b/drivers/base/base.h @@ -69,7 +69,6 @@ struct class_private { * @klist_children - klist containing all children of this device * @knode_parent - node in sibling list * @knode_driver - node in driver list - * @knode_bus - node in bus list * @device - pointer back to the struct class that this structure is * associated with. * @@ -79,15 +78,12 @@ struct device_private { struct klist klist_children; struct klist_node knode_parent; struct klist_node knode_driver; - struct klist_node knode_bus; struct device *device; }; #define to_device_private_parent(obj) \ container_of(obj, struct device_private, knode_parent) #define to_device_private_driver(obj) \ container_of(obj, struct device_private, knode_driver) -#define to_device_private_bus(obj) \ - container_of(obj, struct device_private, knode_bus) /* initialisation functions */ extern int devices_init(void); diff --git a/drivers/base/bus.c b/drivers/base/bus.c index 0f0a50444672..83f32b891fa9 100644 --- a/drivers/base/bus.c +++ b/drivers/base/bus.c @@ -253,14 +253,7 @@ static ssize_t store_drivers_probe(struct bus_type *bus, static struct device *next_device(struct klist_iter *i) { struct klist_node *n = klist_next(i); - struct device *dev = NULL; - struct device_private *dev_prv; - - if (n) { - dev_prv = to_device_private_bus(n); - dev = dev_prv->device; - } - return dev; + return n ? container_of(n, struct device, knode_bus) : NULL; } /** @@ -293,7 +286,7 @@ int bus_for_each_dev(struct bus_type *bus, struct device *start, return -EINVAL; klist_iter_init_node(&bus->p->klist_devices, &i, - (start ? &start->p->knode_bus : NULL)); + (start ? &start->knode_bus : NULL)); while ((dev = next_device(&i)) && !error) error = fn(dev, data); klist_iter_exit(&i); @@ -327,7 +320,7 @@ struct device *bus_find_device(struct bus_type *bus, return NULL; klist_iter_init_node(&bus->p->klist_devices, &i, - (start ? &start->p->knode_bus : NULL)); + (start ? &start->knode_bus : NULL)); while ((dev = next_device(&i))) if (match(dev, data) && get_device(dev)) break; @@ -514,8 +507,7 @@ void bus_attach_device(struct device *dev) ret = device_attach(dev); WARN_ON(ret < 0); if (ret >= 0) - klist_add_tail(&dev->p->knode_bus, - &bus->p->klist_devices); + klist_add_tail(&dev->knode_bus, &bus->p->klist_devices); } } @@ -536,8 +528,8 @@ void bus_remove_device(struct device *dev) sysfs_remove_link(&dev->bus->p->devices_kset->kobj, dev_name(dev)); device_remove_attrs(dev->bus, dev); - if (klist_node_attached(&dev->p->knode_bus)) - klist_del(&dev->p->knode_bus); + if (klist_node_attached(&dev->knode_bus)) + klist_del(&dev->knode_bus); pr_debug("bus: '%s': remove device %s\n", dev->bus->name, dev_name(dev)); @@ -839,16 +831,14 @@ static void bus_remove_attrs(struct bus_type *bus) static void klist_devices_get(struct klist_node *n) { - struct device_private *dev_prv = to_device_private_bus(n); - struct device *dev = dev_prv->device; + struct device *dev = container_of(n, struct device, knode_bus); get_device(dev); } static void klist_devices_put(struct klist_node *n) { - struct device_private *dev_prv = to_device_private_bus(n); - struct device *dev = dev_prv->device; + struct device *dev = container_of(n, struct device, knode_bus); put_device(dev); } @@ -1003,20 +993,18 @@ static void device_insertion_sort_klist(struct device *a, struct list_head *list { struct list_head *pos; struct klist_node *n; - struct device_private *dev_prv; struct device *b; list_for_each(pos, list) { n = container_of(pos, struct klist_node, n_node); - dev_prv = to_device_private_bus(n); - b = dev_prv->device; + b = container_of(n, struct device, knode_bus); if (compare(a, b) <= 0) { - list_move_tail(&a->p->knode_bus.n_node, - &b->p->knode_bus.n_node); + list_move_tail(&a->knode_bus.n_node, + &b->knode_bus.n_node); return; } } - list_move_tail(&a->p->knode_bus.n_node, list); + list_move_tail(&a->knode_bus.n_node, list); } void bus_sort_breadthfirst(struct bus_type *bus, @@ -1026,7 +1014,6 @@ void bus_sort_breadthfirst(struct bus_type *bus, LIST_HEAD(sorted_devices); struct list_head *pos, *tmp; struct klist_node *n; - struct device_private *dev_prv; struct device *dev; struct klist *device_klist; @@ -1035,8 +1022,7 @@ void bus_sort_breadthfirst(struct bus_type *bus, spin_lock(&device_klist->k_lock); list_for_each_safe(pos, tmp, &device_klist->k_list) { n = container_of(pos, struct klist_node, n_node); - dev_prv = to_device_private_bus(n); - dev = dev_prv->device; + dev = container_of(n, struct device, knode_bus); device_insertion_sort_klist(dev, &sorted_devices, compare); } list_splice(&sorted_devices, &device_klist->k_list); diff --git a/include/linux/device.h b/include/linux/device.h index 7d9da4b4993f..8987f4776064 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -366,6 +366,7 @@ struct device_dma_parameters { }; struct device { + struct klist_node knode_bus; struct device *parent; struct device_private *p; |