diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 680b7300a48966dc0162adc05577541d8cc47854..2cdc9de9371dd0d941406c11af288a8582c4e475 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -72,7 +72,8 @@ static inline int acpi_madt_oem_check(char *oem_id, char *oem_table_id) { return
 #define PREFIX			"ACPI: "
 
 int acpi_noirq;				/* skip ACPI IRQ initialization */
-int acpi_pci_disabled __initdata;	/* skip ACPI PCI scan and IRQ initialization */
+int acpi_pci_disabled;		/* skip ACPI PCI scan and IRQ initialization */
+EXPORT_SYMBOL(acpi_pci_disabled);
 int acpi_ht __initdata = 1;	/* enable HT */
 
 int acpi_lapic;
diff --git a/drivers/pci/hotplug/acpiphp_core.c b/drivers/pci/hotplug/acpiphp_core.c
index c8c263875c2179572812709eed979b5b47067931..9279d5ba62e6aa675a792c09c5bc52574a126ed4 100644
--- a/drivers/pci/hotplug/acpiphp_core.c
+++ b/drivers/pci/hotplug/acpiphp_core.c
@@ -392,6 +392,9 @@ static int __init acpiphp_init(void)
 {
 	info(DRIVER_DESC " version: " DRIVER_VERSION "\n");
 
+	if (acpi_pci_disabled)
+		return 0;
+
 	acpiphp_debug = debug;
 
 	/* read all the ACPI info from the system */
@@ -401,6 +404,9 @@ static int __init acpiphp_init(void)
 
 static void __exit acpiphp_exit(void)
 {
+	if (acpi_pci_disabled)
+		return;
+
 	/* deallocate internal data structures etc. */
 	acpiphp_glue_exit();
 }