x86/PCI: MMCONFIG: manage pci_mmcfg_region as a list, not a table

This changes pci_mmcfg_region from a table to a list, to make it easier
to add and remove MMCONFIG regions for PCI host bridge hotplug.

Reviewed-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/x86/include/asm/pci_x86.h b/arch/x86/include/asm/pci_x86.h
index 7aa2ed8f25ab..0b7c316a70c3 100644
--- a/arch/x86/include/asm/pci_x86.h
+++ b/arch/x86/include/asm/pci_x86.h
@@ -122,6 +122,7 @@ extern int __init pcibios_init(void);
 #define PCI_MMCFG_RESOURCE_NAME_LEN (22 + 4 + 2 + 2)
 
 struct pci_mmcfg_region {
+        struct list_head list;
         struct resource res;
         u64 address;
         char __iomem *virt;
@@ -134,8 +135,7 @@ struct pci_mmcfg_region {
 extern int __init pci_mmcfg_arch_init(void);
 extern void __init pci_mmcfg_arch_free(void);
 
-extern struct pci_mmcfg_region *pci_mmcfg_config;
-extern int pci_mmcfg_config_num;
+extern struct list_head pci_mmcfg_list;
 
 #define PCI_MMCFG_BUS_OFFSET(bus)      ((bus) << 20)