Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757596AbZAFWTA (ORCPT ); Tue, 6 Jan 2009 17:19:00 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755864AbZAFWNf (ORCPT ); Tue, 6 Jan 2009 17:13:35 -0500 Received: from kroah.org ([198.145.64.141]:51212 "EHLO coco.kroah.org" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755481AbZAFWNd (ORCPT ); Tue, 6 Jan 2009 17:13:33 -0500 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , Kay Sievers Subject: [PATCH 16/60] driver core: move knode_bus into private structure Date: Tue, 6 Jan 2009 14:11:35 -0800 Message-Id: <1231279939-32728-16-git-send-email-gregkh@suse.de> X-Mailer: git-send-email 1.6.0.4 In-Reply-To: <20090106221123.GA32689@kroah.com> References: <20090106221123.GA32689@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5916 Lines: 180 Nothing outside of the driver core should ever touch knode_bus, so move it out of the public eye. Cc: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/base/base.h | 4 ++++ drivers/base/bus.c | 40 +++++++++++++++++++++++++++------------- include/linux/device.h | 1 - 3 files changed, 31 insertions(+), 14 deletions(-) diff --git a/drivers/base/base.h b/drivers/base/base.h index 8af0bb2..b676f8f 100644 --- a/drivers/base/base.h +++ b/drivers/base/base.h @@ -69,6 +69,7 @@ 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. * @@ -78,12 +79,15 @@ 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 83f32b8..0f0a504 100644 --- a/drivers/base/bus.c +++ b/drivers/base/bus.c @@ -253,7 +253,14 @@ 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); - return n ? container_of(n, struct device, knode_bus) : NULL; + struct device *dev = NULL; + struct device_private *dev_prv; + + if (n) { + dev_prv = to_device_private_bus(n); + dev = dev_prv->device; + } + return dev; } /** @@ -286,7 +293,7 @@ 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->knode_bus : NULL)); + (start ? &start->p->knode_bus : NULL)); while ((dev = next_device(&i)) && !error) error = fn(dev, data); klist_iter_exit(&i); @@ -320,7 +327,7 @@ struct device *bus_find_device(struct bus_type *bus, return NULL; klist_iter_init_node(&bus->p->klist_devices, &i, - (start ? &start->knode_bus : NULL)); + (start ? &start->p->knode_bus : NULL)); while ((dev = next_device(&i))) if (match(dev, data) && get_device(dev)) break; @@ -507,7 +514,8 @@ void bus_attach_device(struct device *dev) ret = device_attach(dev); WARN_ON(ret < 0); if (ret >= 0) - klist_add_tail(&dev->knode_bus, &bus->p->klist_devices); + klist_add_tail(&dev->p->knode_bus, + &bus->p->klist_devices); } } @@ -528,8 +536,8 @@ 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->knode_bus)) - klist_del(&dev->knode_bus); + if (klist_node_attached(&dev->p->knode_bus)) + klist_del(&dev->p->knode_bus); pr_debug("bus: '%s': remove device %s\n", dev->bus->name, dev_name(dev)); @@ -831,14 +839,16 @@ static void bus_remove_attrs(struct bus_type *bus) static void klist_devices_get(struct klist_node *n) { - struct device *dev = container_of(n, struct device, knode_bus); + struct device_private *dev_prv = to_device_private_bus(n); + struct device *dev = dev_prv->device; get_device(dev); } static void klist_devices_put(struct klist_node *n) { - struct device *dev = container_of(n, struct device, knode_bus); + struct device_private *dev_prv = to_device_private_bus(n); + struct device *dev = dev_prv->device; put_device(dev); } @@ -993,18 +1003,20 @@ 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); - b = container_of(n, struct device, knode_bus); + dev_prv = to_device_private_bus(n); + b = dev_prv->device; if (compare(a, b) <= 0) { - list_move_tail(&a->knode_bus.n_node, - &b->knode_bus.n_node); + list_move_tail(&a->p->knode_bus.n_node, + &b->p->knode_bus.n_node); return; } } - list_move_tail(&a->knode_bus.n_node, list); + list_move_tail(&a->p->knode_bus.n_node, list); } void bus_sort_breadthfirst(struct bus_type *bus, @@ -1014,6 +1026,7 @@ 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; @@ -1022,7 +1035,8 @@ 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 = container_of(n, struct device, knode_bus); + dev_prv = to_device_private_bus(n); + dev = dev_prv->device; 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 e363022..e21b5d6 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -366,7 +366,6 @@ struct device_dma_parameters { }; struct device { - struct klist_node knode_bus; struct device *parent; struct device_private *p; -- 1.6.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/