x86/PCI: MMCONFIG: step through MCFG table, not pci_mmcfg_config[]

Step through the ACPI MCFG table, not pci_mmcfg_config[].  No functional
change, but simplifies future patches that encapsulate pci_mmcfg_config[].

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

diff --git a/arch/x86/pci/mmconfig-shared.c b/arch/x86/pci/mmconfig-shared.c
index fbadb89..7a7b6ba 100644 (file)
--- a/arch/x86/pci/mmconfig-shared.c
+++ b/arch/x86/pci/mmconfig-shared.c
@@ -554,6 +554,7 @@ static int __init acpi_mcfg_check_entry(struct acpi_table_mcfg *mcfg,
 static int __init pci_parse_mcfg(struct acpi_table_header *header)
 {
        struct acpi_table_mcfg *mcfg;
+       struct acpi_mcfg_allocation *cfg_table, *cfg;
        unsigned long i;
        int entries, config_size;
 
@@ -586,8 +587,10 @@ static int __init pci_parse_mcfg(struct acpi_table_header *header)
        memcpy(pci_mmcfg_config, &mcfg[1], config_size);
        pci_mmcfg_config_num = entries;
 
+       cfg_table = (struct acpi_mcfg_allocation *) &mcfg[1];
        for (i = 0; i < entries; i++) {
-               if (acpi_mcfg_check_entry(mcfg, &pci_mmcfg_config[i])) {
+               cfg = &cfg_table[i];
+               if (acpi_mcfg_check_entry(mcfg, cfg)) {
                        kfree(pci_mmcfg_config);
                        pci_mmcfg_config_num = 0;
                        return -ENODEV;