[PATCH] mmconfig: minor cleanup in mmconfig code

[linux-2.6-omap-h63xx.git] / arch / x86_64 / pci / mmconfig.c

diff --git a/arch/x86_64/pci/mmconfig.c b/arch/x86_64/pci/mmconfig.c
index 50512a8fc9e8b75891de66cfab2612e7cd24540c..918fc5b95a06fb656ee878d8d786796eeb6743e9 100644 (file)
--- a/arch/x86_64/pci/mmconfig.c
+++ b/arch/x86_64/pci/mmconfig.c
@@ -13,10 +13,6 @@
 
 #include "pci.h"
 
-/* Verify the first 16 busses. We assume that systems with more busses
-   get MCFG right. */
-#define PCI_MMCFG_MAX_CHECK_BUS 16
-
 /* Static virtual mapping of the MMCONFIG aperture */
 struct mmcfg_virt {
        struct acpi_mcfg_allocation *cfg;
@@ -26,17 +22,13 @@ static struct mmcfg_virt *pci_mmcfg_virt;
 
 static char __iomem *get_virt(unsigned int seg, unsigned bus)
 {
-       int cfg_num = -1;
        struct acpi_mcfg_allocation *cfg;
+       int cfg_num;
 
-       while (1) {
-               ++cfg_num;
-               if (cfg_num >= pci_mmcfg_config_num)
-                       break;
+       for (cfg_num = 0; cfg_num < pci_mmcfg_config_num; cfg_num++) {
                cfg = pci_mmcfg_virt[cfg_num].cfg;
-               if (cfg->pci_segment != seg)
-                       continue;
-               if ((cfg->start_bus_number <= bus) &&
+               if (cfg->pci_segment == seg &&
+                   (cfg->start_bus_number <= bus) &&
                    (cfg->end_bus_number >= bus))
                        return pci_mmcfg_virt[cfg_num].virt;
        }