<commit_before>/*
 * legacy.c - traditional, old school PCI bus probing
 */
#include <linux/init.h>
#include <linux/pci.h>
#include "pci.h"

/*
 * Discover remaining PCI buses in case there are peer host bridges.
 * We use the number of last PCI bus provided by the PCI BIOS.
 */
static void __devinit pcibios_fixup_peer_bridges(void)
{
	int n, devfn;
	long node;

	if (pcibios_last_bus <= 0 || pcibios_last_bus >= 0xff)
		return;
	DBG("PCI: Peer bridge fixup\n");

	for (n=0; n <= pcibios_last_bus; n++) {
		u32 l;
		if (pci_find_bus(0, n))
			continue;
		node = get_mp_bus_to_node(n);
		for (devfn = 0; devfn < 256; devfn += 8) {
			if (!raw_pci_read(0, n, devfn, PCI_VENDOR_ID, 2, &l) &&
			    l != 0x0000 && l != 0xffff) {<commit_msg>x86/PCI: allow scanning of 255 PCI busses<commit_after>/*
 * legacy.c - traditional, old school PCI bus probing
 */
#include <linux/init.h>
#include <linux/pci.h>
#include "pci.h"

/*
 * Discover remaining PCI buses in case there are peer host bridges.
 * We use the number of last PCI bus provided by the PCI BIOS.
 */
static void __devinit pcibios_fixup_peer_bridges(void)
{
	int n, devfn;
	long node;

	if (pcibios_last_bus <= 0 || pcibios_last_bus > 0xff)
		return;
	DBG("PCI: Peer bridge fixup\n");

	for (n=0; n <= pcibios_last_bus; n++) {
		u32 l;
		if (pci_find_bus(0, n))
			continue;
		node = get_mp_bus_to_node(n);
		for (devfn = 0; devfn < 256; devfn += 8) {
			if (!raw_pci_read(0, n, devfn, PCI_VENDOR_ID, 2, &l) &&
			    l != 0x0000 && l != 0xffff) {
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