[PATCH] mmconfig: fix unreachable_devices()

Currently, unreachable_devices() compares value of mmconfig and value
of conf1. But it doesn't check the device is reachable or not.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andi Kleen <ak@suse.de>

1 files changed, 6 insertions, 0 deletions

diff --git a/arch/i386/pci/mmconfig.c b/arch/i386/pci/mmconfig.c
index 11be089efd7d..bb1afd9e589d 100644
--- a/arch/i386/pci/mmconfig.c
+++ b/arch/i386/pci/mmconfig.c
@@ -136,6 +136,12 @@ static struct pci_raw_ops pci_mmcfg = {
         .write =        pci_mmcfg_write,
 };
 
+int __init pci_mmcfg_arch_reachable(unsigned int seg, unsigned int bus,
+                                    unsigned int devfn)
+{
+        return get_base_addr(seg, bus, devfn) != 0;
+}
+
 int __init pci_mmcfg_arch_init(void)
 {
         printk(KERN_INFO "PCI: Using MMCONFIG\n");