diff --git a/arch/x86/pci/mmconfig-shared.c b/arch/x86/pci/mmconfig-shared.c
index 937bcec..3f3c460 100644
--- a/arch/x86/pci/mmconfig-shared.c
+++ b/arch/x86/pci/mmconfig-shared.c
@@ -616,16 +616,6 @@ static void __init __pci_mmcfg_init(int early)
        if (list_empty(&pci_mmcfg_list))
                return;

-       if (pcibios_last_bus < 0) {
-               const struct pci_mmcfg_region *cfg;
-
-               list_for_each_entry(cfg, &pci_mmcfg_list, list) {
-                       if (cfg->segment)
-                               break;
-                       pcibios_last_bus = cfg->end_bus;
-               }
-       }
-
        if (pci_mmcfg_arch_init())
                pci_probe = (pci_probe & ~PCI_PROBE_MASK) | PCI_PROBE_MMCONF;
        else {