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PCI: remove global list of PCI devices

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This patch finally removes the global list of PCI devices.  We are
relying entirely on the list held in the driver core now, and do not
need a separate "shadow" list as no one uses it.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Greg Kroah-Hartman
2008-02-14 14:56:56 -08:00
parent c71c68a04b
commit 5ff580c10e
4 changed files with 1 additions and 49 deletions
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39
drivers/pci/probe.c
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@@ -20,8 +20,6 @@
LIST_HEAD(pci_root_buses);
EXPORT_SYMBOL(pci_root_buses);
LIST_HEAD(pci_devices);
static int find_anything(struct device *dev, void *data)
{
@@ -860,7 +858,6 @@ struct pci_dev *alloc_pci_dev(void)
if (!dev)
return NULL;
INIT_LIST_HEAD(&dev->global_list);
INIT_LIST_HEAD(&dev->bus_list);
pci_msi_init_pci_dev(dev);
@@ -957,7 +954,6 @@ void pci_device_add(struct pci_dev *dev, struct pci_bus *bus)
* Add the device to our list of discovered devices
* and the bus list for fixup functions, etc.
*/
INIT_LIST_HEAD(&dev->global_list);
down_write(&pci_bus_sem);
list_add_tail(&dev->bus_list, &bus->devices);
up_write(&pci_bus_sem);
@@ -1186,7 +1182,7 @@ static void __init pci_insertion_sort_klist(struct pci_dev *a, struct list_head
list_move_tail(&a->dev.knode_bus.n_node, list);
}
static void __init pci_sort_breadthfirst_klist(void)
void __init pci_sort_breadthfirst(void)
{
LIST_HEAD(sorted_devices);
struct list_head *pos, *tmp;
@@ -1207,36 +1203,3 @@ static void __init pci_sort_breadthfirst_klist(void)
list_splice(&sorted_devices, &device_klist->k_list);
spin_unlock(&device_klist->k_lock);
}
static void __init pci_insertion_sort_devices(struct pci_dev *a, struct list_head *list)
{
struct pci_dev *b;
list_for_each_entry(b, list, global_list) {
if (pci_sort_bf_cmp(a, b) <= 0) {
list_move_tail(&a->global_list, &b->global_list);
return;
}
}
list_move_tail(&a->global_list, list);
}
static void __init pci_sort_breadthfirst_devices(void)
{
LIST_HEAD(sorted_devices);
struct pci_dev *dev, *tmp;
down_write(&pci_bus_sem);
list_for_each_entry_safe(dev, tmp, &pci_devices, global_list) {
pci_insertion_sort_devices(dev, &sorted_devices);
}
list_splice(&sorted_devices, &pci_devices);
up_write(&pci_bus_sem);
}
void __init pci_sort_breadthfirst(void)
{
pci_sort_breadthfirst_devices();
pci_sort_breadthfirst_klist();
}