21 	struct pci_slot *slot = to_pci_slot(kobj);  in pci_slot_attr_show()  local
23 	return attribute->show ? attribute->show(slot, buf) : -EIO;  in pci_slot_attr_show()
29 	struct pci_slot *slot = to_pci_slot(kobj);  in pci_slot_attr_store()  local
31 	return attribute->store ? attribute->store(slot, buf, len) : -EIO;  in pci_slot_attr_store()
39 static ssize_t address_read_file(struct pci_slot *slot, char *buf)  in address_read_file()  argument
41 	if (slot->number == 0xff)  in address_read_file()
43 				pci_domain_nr(slot->bus),  in address_read_file()
44 				slot->bus->number);  in address_read_file()
47 				pci_domain_nr(slot->bus),  in address_read_file()
48 				slot->bus->number,  in address_read_file()
49 				slot->number);  in address_read_file()
93 static ssize_t max_speed_read_file(struct pci_slot *slot, char *buf)  in max_speed_read_file()  argument
95 	return bus_speed_read(slot->bus->max_bus_speed, buf);  in max_speed_read_file()
98 static ssize_t cur_speed_read_file(struct pci_slot *slot, char *buf)  in cur_speed_read_file()  argument
100 	return bus_speed_read(slot->bus->cur_bus_speed, buf);  in cur_speed_read_file()
106 	struct pci_slot *slot = to_pci_slot(kobj);  in pci_slot_release()  local
108 	dev_dbg(&slot->bus->dev, "dev %02x, released physical slot %s\n",  in pci_slot_release()
109 		slot->number, pci_slot_name(slot));  in pci_slot_release()
112 	list_for_each_entry(dev, &slot->bus->devices, bus_list)  in pci_slot_release()
113 		if (PCI_SLOT(dev->devfn) == slot->number)  in pci_slot_release()
114 			dev->slot = NULL;  in pci_slot_release()
117 	list_del(&slot->list);  in pci_slot_release()
119 	kfree(slot);  in pci_slot_release()
180 static int rename_slot(struct pci_slot *slot, const char *name)  in rename_slot()  argument
185 	if (strcmp(pci_slot_name(slot), name) == 0)  in rename_slot()
192 	result = kobject_rename(&slot->kobj, slot_name);  in rename_slot()
200 	struct pci_slot *slot;  in pci_dev_assign_slot()  local
203 	list_for_each_entry(slot, &dev->bus->slots, list)  in pci_dev_assign_slot()
204 		if (PCI_SLOT(dev->devfn) == slot->number)  in pci_dev_assign_slot()
205 			dev->slot = slot;  in pci_dev_assign_slot()
211 	struct pci_slot *slot;  in get_slot()  local
214 	list_for_each_entry(slot, &parent->slots, list)  in get_slot()
215 		if (slot->number == slot_nr) {  in get_slot()
216 			kobject_get(&slot->kobj);  in get_slot()
217 			return slot;  in get_slot()
224  * pci_create_slot - create or increment refcount for physical PCI slot
242  * The first slot is assigned N
243  * The second slot is assigned N-1
244  * The third slot is assigned N-2
249  * a slot. There is one notable exception - pSeries (rpaphp), where the
251  * the slot. In this scenario, the caller may pass -1 for @slot_nr.
259  * the 'placeholder' slot will not be displayed.
266 	struct pci_slot *slot;  in pci_create_slot()  local
276 	 * Hotplug drivers are allowed to rename an existing slot,  in pci_create_slot()
279 	slot = get_slot(parent, slot_nr);  in pci_create_slot()
280 	if (slot) {  in pci_create_slot()
282 			if ((err = slot->hotplug ? -EBUSY : 0)  in pci_create_slot()
283 			     || (err = rename_slot(slot, name))) {  in pci_create_slot()
284 				kobject_put(&slot->kobj);  in pci_create_slot()
285 				slot = NULL;  in pci_create_slot()
293 	slot = kzalloc(sizeof(*slot), GFP_KERNEL);  in pci_create_slot()
294 	if (!slot) {  in pci_create_slot()
299 	slot->bus = parent;  in pci_create_slot()
300 	slot->number = slot_nr;  in pci_create_slot()
302 	slot->kobj.kset = pci_slots_kset;  in pci_create_slot()
310 	err = kobject_init_and_add(&slot->kobj, &pci_slot_ktype, NULL,  in pci_create_slot()
315 	INIT_LIST_HEAD(&slot->list);  in pci_create_slot()
316 	list_add(&slot->list, &parent->slots);  in pci_create_slot()
321 			dev->slot = slot;  in pci_create_slot()
324 	dev_dbg(&parent->dev, "dev %02x, created physical slot %s\n",  in pci_create_slot()
325 		slot_nr, pci_slot_name(slot));  in pci_create_slot()
330 	return slot;  in pci_create_slot()
332 	kfree(slot);  in pci_create_slot()
333 	slot = ERR_PTR(err);  in pci_create_slot()
339  * pci_destroy_slot - decrement refcount for physical PCI slot
340  * @slot: struct pci_slot to decrement
346 void pci_destroy_slot(struct pci_slot *slot)  in pci_destroy_slot()  argument
348 	dev_dbg(&slot->bus->dev, "dev %02x, dec refcount to %d\n",  in pci_destroy_slot()
349 		slot->number, kref_read(&slot->kobj.kref) - 1);  in pci_destroy_slot()
352 	kobject_put(&slot->kobj);  in pci_destroy_slot()
368 	struct hotplug_slot *slot = pci_slot->hotplug;  in pci_hp_create_module_link()  local
372 	if (!slot || !slot->ops)  in pci_hp_create_module_link()
374 	kobj = kset_find_obj(module_kset, slot->mod_name);  in pci_hp_create_module_link()
407 		pr_err("PCI: Slot initialization failure\n");  in pci_slot_init()