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Commit c57ca65a authored by Yinghai Lu's avatar Yinghai Lu Committed by Bjorn Helgaas
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x86/PCI: merge pcibios_scan_root() and pci_scan_bus_on_node() 



pcibios_scan_root() and pci_scan_bus_on_node() were almost identical,
so this patch merges them.

Signed-off-by: default avatarYinghai Lu <yinghai@kernel.org>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
parent d28e5ac2

arch/x86/pci/common.c

+4 −23
Original line number Diff line number Diff line
@@ -430,9 +430,7 @@ void __init dmi_check_pciprobe(void) 


struct pci_bus * __devinit pcibios_scan_root(int busnum)

{

	LIST_HEAD(resources);

	struct pci_bus *bus = NULL;

	struct pci_sysdata *sd;



	while ((bus = pci_find_next_bus(bus)) != NULL) {

		if (bus->number == busnum) {
@@ -441,28 +439,10 @@ struct pci_bus * __devinit pcibios_scan_root(int busnum) 
		}

	}



	/* Allocate per-root-bus (not per bus) arch-specific data.

	 * TODO: leak; this memory is never freed.

	 * It's arguable whether it's worth the trouble to care.

	 */

	sd = kzalloc(sizeof(*sd), GFP_KERNEL);

	if (!sd) {

		printk(KERN_ERR "PCI: OOM, not probing PCI bus %02x\n", busnum);

		return NULL;

	}



	sd->node = get_mp_bus_to_node(busnum);



	printk(KERN_DEBUG "PCI: Probing PCI hardware (bus %02x)\n", busnum);

	x86_pci_root_bus_resources(busnum, &resources);

	bus = pci_scan_root_bus(NULL, busnum, &pci_root_ops, sd, &resources);

	if (!bus) {

		pci_free_resource_list(&resources);

		kfree(sd);

	return pci_scan_bus_on_node(busnum, &pci_root_ops,

					get_mp_bus_to_node(busnum));

}



	return bus;

}

void __init pcibios_set_cache_line_size(void)

{

	struct cpuinfo_x86 *c = &boot_cpu_data;
@@ -656,6 +636,7 @@ struct pci_bus * __devinit pci_scan_bus_on_node(int busno, struct pci_ops *ops, 
	}

	sd->node = node;

	x86_pci_root_bus_resources(busno, &resources);

	printk(KERN_DEBUG "PCI: Probing PCI hardware (bus %02x)\n", busno);

	bus = pci_scan_root_bus(NULL, busno, ops, sd, &resources);

	if (!bus) {

		pci_free_resource_list(&resources);