diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index 60532ab..de1474f 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -15,6 +15,7 @@
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/pci.h>
+#include <linux/pci-acpi.h>
 #include <linux/init.h>
 #include <linux/ioport.h>
 #include <linux/slab.h>
@@ -458,6 +459,16 @@
 	platform_pci_fixup_bus(b);
 }
 
+void pcibios_add_bus(struct pci_bus *bus)
+{
+	acpi_pci_add_bus(bus);
+}
+
+void pcibios_remove_bus(struct pci_bus *bus)
+{
+	acpi_pci_remove_bus(bus);
+}
+
 void pcibios_set_master (struct pci_dev *dev)
 {
 	/* No special bus mastering setup handling */
diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c
index 0872f12..594e60d 100644
--- a/arch/mips/pci/pci.c
+++ b/arch/mips/pci/pci.c
@@ -115,7 +115,6 @@
 			pci_bus_assign_resources(bus);
 			pci_enable_bridges(bus);
 		}
-		bus->dev.of_node = hose->of_node;
 	}
 }
 
@@ -169,6 +168,13 @@
 		}
 	}
 }
+
+struct device_node *pcibios_get_phb_of_node(struct pci_bus *bus)
+{
+	struct pci_controller *hose = bus->sysdata;
+
+	return of_node_get(hose->of_node);
+}
 #endif
 
 static DEFINE_MUTEX(pci_scan_mutex);
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 901177d..305c68b 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -6,6 +6,7 @@
 
 #include <linux/sched.h>
 #include <linux/pci.h>
+#include <linux/pci-acpi.h>
 #include <linux/ioport.h>
 #include <linux/init.h>
 #include <linux/dmi.h>
@@ -170,6 +171,16 @@
 		pcibios_fixup_device_resources(dev);
 }
 
+void pcibios_add_bus(struct pci_bus *bus)
+{
+	acpi_pci_add_bus(bus);
+}
+
+void pcibios_remove_bus(struct pci_bus *bus)
+{
+	acpi_pci_remove_bus(bus);
+}
+
 /*
  * Only use DMI information to set this if nothing was passed
  * on the kernel command line (which was parsed earlier).
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 0ac546d..b80e06e 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -65,44 +65,12 @@
 	.detach = acpi_pci_root_remove,
 };
 
-/* Lock to protect both acpi_pci_roots and acpi_pci_drivers lists */
+/* Lock to protect both acpi_pci_roots lists */
 static DEFINE_MUTEX(acpi_pci_root_lock);
 static LIST_HEAD(acpi_pci_roots);
-static LIST_HEAD(acpi_pci_drivers);
 
 static DEFINE_MUTEX(osc_lock);
 
-int acpi_pci_register_driver(struct acpi_pci_driver *driver)
-{
-	int n = 0;
-	struct acpi_pci_root *root;
-
-	mutex_lock(&acpi_pci_root_lock);
-	list_add_tail(&driver->node, &acpi_pci_drivers);
-	if (driver->add)
-		list_for_each_entry(root, &acpi_pci_roots, node) {
-			driver->add(root);
-			n++;
-		}
-	mutex_unlock(&acpi_pci_root_lock);
-
-	return n;
-}
-EXPORT_SYMBOL(acpi_pci_register_driver);
-
-void acpi_pci_unregister_driver(struct acpi_pci_driver *driver)
-{
-	struct acpi_pci_root *root;
-
-	mutex_lock(&acpi_pci_root_lock);
-	list_del(&driver->node);
-	if (driver->remove)
-		list_for_each_entry(root, &acpi_pci_roots, node)
-			driver->remove(root);
-	mutex_unlock(&acpi_pci_root_lock);
-}
-EXPORT_SYMBOL(acpi_pci_unregister_driver);
-
 /**
  * acpi_is_root_bridge - determine whether an ACPI CA node is a PCI root bridge
  * @handle - the ACPI CA node in question.
@@ -413,7 +381,6 @@
 	acpi_status status;
 	int result;
 	struct acpi_pci_root *root;
-	struct acpi_pci_driver *driver;
 	u32 flags, base_flags;
 	bool is_osc_granted = false;
 
@@ -573,12 +540,6 @@
 		pci_assign_unassigned_bus_resources(root->bus);
 	}
 
-	mutex_lock(&acpi_pci_root_lock);
-	list_for_each_entry(driver, &acpi_pci_drivers, node)
-		if (driver->add)
-			driver->add(root);
-	mutex_unlock(&acpi_pci_root_lock);
-
 	/* need to after hot-added ioapic is registered */
 	if (system_state != SYSTEM_BOOTING)
 		pci_enable_bridges(root->bus);
@@ -599,16 +560,9 @@
 static void acpi_pci_root_remove(struct acpi_device *device)
 {
 	struct acpi_pci_root *root = acpi_driver_data(device);
-	struct acpi_pci_driver *driver;
 
 	pci_stop_root_bus(root->bus);
 
-	mutex_lock(&acpi_pci_root_lock);
-	list_for_each_entry_reverse(driver, &acpi_pci_drivers, node)
-		if (driver->remove)
-			driver->remove(root);
-	mutex_unlock(&acpi_pci_root_lock);
-
 	device_set_run_wake(root->bus->bridge, false);
 	pci_acpi_remove_bus_pm_notifier(device);
 
diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c
index cd1434e..033d117 100644
--- a/drivers/acpi/pci_slot.c
+++ b/drivers/acpi/pci_slot.c
@@ -9,6 +9,9 @@
  *  Copyright (C) 2007-2008 Hewlett-Packard Development Company, L.P.
  *  	Alex Chiang <achiang@hp.com>
  *
+ *  Copyright (C) 2013 Huawei Tech. Co., Ltd.
+ *	Jiang Liu <jiang.liu@huawei.com>
+ *
  *  This program is free software; you can redistribute it and/or modify it
  *  under the terms and conditions of the GNU General Public License,
  *  version 2, as published by the Free Software Foundation.
@@ -28,10 +31,9 @@
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/types.h>
+#include <linux/list.h>
 #include <linux/pci.h>
 #include <linux/acpi.h>
-#include <acpi/acpi_bus.h>
-#include <acpi/acpi_drivers.h>
 #include <linux/dmi.h>
 
 static bool debug;
@@ -61,20 +63,12 @@
 #define SLOT_NAME_SIZE 21		/* Inspired by #define in acpiphp.h */
 
 struct acpi_pci_slot {
-	acpi_handle root_handle;	/* handle of the root bridge */
 	struct pci_slot *pci_slot;	/* corresponding pci_slot */
 	struct list_head list;		/* node in the list of slots */
 };
 
-static int acpi_pci_slot_add(struct acpi_pci_root *root);
-static void acpi_pci_slot_remove(struct acpi_pci_root *root);
-
 static LIST_HEAD(slot_list);
 static DEFINE_MUTEX(slot_list_lock);
-static struct acpi_pci_driver acpi_pci_slot_driver = {
-	.add = acpi_pci_slot_add,
-	.remove = acpi_pci_slot_remove,
-};
 
 static int
 check_slot(acpi_handle handle, unsigned long long *sun)
@@ -113,21 +107,8 @@
 	return device;
 }
 
-struct callback_args {
-	acpi_walk_callback	user_function;	/* only for walk_p2p_bridge */
-	struct pci_bus		*pci_bus;
-	acpi_handle		root_handle;
-};
-
 /*
- * register_slot
- *
- * Called once for each SxFy object in the namespace. Don't worry about
- * calling pci_create_slot multiple times for the same pci_bus:device,
- * since each subsequent call simply bumps the refcount on the pci_slot.
- *
- * The number of calls to pci_destroy_slot from unregister_slot is
- * symmetrical.
+ * Check whether handle has an associated slot and create PCI slot if it has.
  */
 static acpi_status
 register_slot(acpi_handle handle, u32 lvl, void *context, void **rv)
@@ -137,13 +118,22 @@
 	char name[SLOT_NAME_SIZE];
 	struct acpi_pci_slot *slot;
 	struct pci_slot *pci_slot;
-	struct callback_args *parent_context = context;
-	struct pci_bus *pci_bus = parent_context->pci_bus;
+	struct pci_bus *pci_bus = context;
 
 	device = check_slot(handle, &sun);
 	if (device < 0)
 		return AE_OK;
 
+	/*
+	 * There may be multiple PCI functions associated with the same slot.
+	 * Check whether PCI slot has already been created for this PCI device.
+	 */
+	list_for_each_entry(slot, &slot_list, list) {
+		pci_slot = slot->pci_slot;
+		if (pci_slot->bus == pci_bus && pci_slot->number == device)
+			return AE_OK;
+	}
+
 	slot = kmalloc(sizeof(*slot), GFP_KERNEL);
 	if (!slot) {
 		err("%s: cannot allocate memory\n", __func__);
@@ -158,12 +148,8 @@
 		return AE_OK;
 	}
 
-	slot->root_handle = parent_context->root_handle;
 	slot->pci_slot = pci_slot;
-	INIT_LIST_HEAD(&slot->list);
-	mutex_lock(&slot_list_lock);
 	list_add(&slot->list, &slot_list);
-	mutex_unlock(&slot_list_lock);
 
 	get_device(&pci_bus->dev);
 
@@ -173,131 +159,24 @@
 	return AE_OK;
 }
 
-/*
- * walk_p2p_bridge - discover and walk p2p bridges
- * @handle: points to an acpi_pci_root
- * @context: p2p_bridge_context pointer
- *
- * Note that when we call ourselves recursively, we pass a different
- * value of pci_bus in the child_context.
- */
-static acpi_status
-walk_p2p_bridge(acpi_handle handle, u32 lvl, void *context, void **rv)
+void acpi_pci_slot_enumerate(struct pci_bus *bus, acpi_handle handle)
 {
-	int device, function;
-	unsigned long long adr;
-	acpi_status status;
-	acpi_handle dummy_handle;
-	acpi_walk_callback user_function;
-
-	struct pci_dev *dev;
-	struct pci_bus *pci_bus;
-	struct callback_args child_context;
-	struct callback_args *parent_context = context;
-
-	pci_bus = parent_context->pci_bus;
-	user_function = parent_context->user_function;
-
-	status = acpi_get_handle(handle, "_ADR", &dummy_handle);
-	if (ACPI_FAILURE(status))
-		return AE_OK;
-
-	status = acpi_evaluate_integer(handle, "_ADR", NULL, &adr);
-	if (ACPI_FAILURE(status))
-		return AE_OK;
-
-	device = (adr >> 16) & 0xffff;
-	function = adr & 0xffff;
-
-	dev = pci_get_slot(pci_bus, PCI_DEVFN(device, function));
-	if (!dev || !dev->subordinate)
-		goto out;
-
-	child_context.pci_bus = dev->subordinate;
-	child_context.user_function = user_function;
-	child_context.root_handle = parent_context->root_handle;
-
-	dbg("p2p bridge walk, pci_bus = %x\n", dev->subordinate->number);
-	status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1,
-				     user_function, NULL, &child_context, NULL);
-	if (ACPI_FAILURE(status))
-		goto out;
-
-	status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1,
-				     walk_p2p_bridge, NULL, &child_context, NULL);
-out:
-	pci_dev_put(dev);
-	return AE_OK;
+	mutex_lock(&slot_list_lock);
+	acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, 1,
+			    register_slot, NULL, bus, NULL);
+	mutex_unlock(&slot_list_lock);
 }
 
-/*
- * walk_root_bridge - generic root bridge walker
- * @root: poiner of an acpi_pci_root
- * @user_function: user callback for slot objects
- *
- * Call user_function for all objects underneath this root bridge.
- * Walk p2p bridges underneath us and call user_function on those too.
- */
-static int
-walk_root_bridge(struct acpi_pci_root *root, acpi_walk_callback user_function)
-{
-	acpi_status status;
-	acpi_handle handle = root->device->handle;
-	struct pci_bus *pci_bus = root->bus;
-	struct callback_args context;
-
-	context.pci_bus = pci_bus;
-	context.user_function = user_function;
-	context.root_handle = handle;
-
-	dbg("root bridge walk, pci_bus = %x\n", pci_bus->number);
-	status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1,
-				     user_function, NULL, &context, NULL);
-	if (ACPI_FAILURE(status))
-		return status;
-
-	status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1,
-				     walk_p2p_bridge, NULL, &context, NULL);
-	if (ACPI_FAILURE(status))
-		err("%s: walk_p2p_bridge failure - %d\n", __func__, status);
-
-	return status;
-}
-
-/*
- * acpi_pci_slot_add
- * @handle: points to an acpi_pci_root
- */
-static int
-acpi_pci_slot_add(struct acpi_pci_root *root)
-{
-	acpi_status status;
-
-	status = walk_root_bridge(root, register_slot);
-	if (ACPI_FAILURE(status))
-		err("%s: register_slot failure - %d\n", __func__, status);
-
-	return status;
-}
-
-/*
- * acpi_pci_slot_remove
- * @handle: points to an acpi_pci_root
- */
-static void
-acpi_pci_slot_remove(struct acpi_pci_root *root)
+void acpi_pci_slot_remove(struct pci_bus *bus)
 {
 	struct acpi_pci_slot *slot, *tmp;
-	struct pci_bus *pbus;
-	acpi_handle handle = root->device->handle;
 
 	mutex_lock(&slot_list_lock);
 	list_for_each_entry_safe(slot, tmp, &slot_list, list) {
-		if (slot->root_handle == handle) {
+		if (slot->pci_slot->bus == bus) {
 			list_del(&slot->list);
-			pbus = slot->pci_slot->bus;
 			pci_destroy_slot(slot->pci_slot);
-			put_device(&pbus->dev);
+			put_device(&bus->dev);
 			kfree(slot);
 		}
 	}
@@ -332,5 +211,4 @@
 void __init acpi_pci_slot_init(void)
 {
 	dmi_check_system(acpi_pci_slot_dmi_table);
-	acpi_pci_register_driver(&acpi_pci_slot_driver);
 }
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 5e7e991..f54d198 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1790,7 +1790,6 @@
 	acpi_platform_init();
 	acpi_csrt_init();
 	acpi_container_init();
-	acpi_pci_slot_init();
 
 	mutex_lock(&acpi_scan_lock);
 	/*
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index a99112c..616952f 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -413,17 +413,17 @@
 	/* Marvell */
 	{ PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv },	/* 6145 */
 	{ PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv },	/* 6121 */
-	{ PCI_DEVICE(0x1b4b, 0x9123),
+	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9123),
 	  .class = PCI_CLASS_STORAGE_SATA_AHCI,
 	  .class_mask = 0xffffff,
 	  .driver_data = board_ahci_yes_fbs },			/* 88se9128 */
-	{ PCI_DEVICE(0x1b4b, 0x9125),
+	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9125),
 	  .driver_data = board_ahci_yes_fbs },			/* 88se9125 */
-	{ PCI_DEVICE(0x1b4b, 0x917a),
+	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x917a),
 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 */
-	{ PCI_DEVICE(0x1b4b, 0x9192),
+	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9192),
 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 on some Gigabyte */
-	{ PCI_DEVICE(0x1b4b, 0x91a3),
+	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a3),
 	  .driver_data = board_ahci_yes_fbs },
 
 	/* Promise */
diff --git a/drivers/eisa/eisa-bus.c b/drivers/eisa/eisa-bus.c
index 806c77b..272a3ec 100644
--- a/drivers/eisa/eisa-bus.c
+++ b/drivers/eisa/eisa-bus.c
@@ -275,19 +275,18 @@
 		}
 		
 		if (slot) {
-			edev->res[i].name  = NULL;
 			edev->res[i].start = SLOT_ADDRESS(root, slot)
 					     + (i * 0x400);
 			edev->res[i].end   = edev->res[i].start + 0xff;
 			edev->res[i].flags = IORESOURCE_IO;
 		} else {
-			edev->res[i].name  = NULL;
 			edev->res[i].start = SLOT_ADDRESS(root, slot)
 					     + EISA_VENDOR_ID_OFFSET;
 			edev->res[i].end   = edev->res[i].start + 3;
-			edev->res[i].flags = IORESOURCE_BUSY;
+			edev->res[i].flags = IORESOURCE_IO | IORESOURCE_BUSY;
 		}
 
+		dev_printk(KERN_DEBUG, &edev->dev, "%pR\n", &edev->res[i]);
 		if (request_resource(root->res, &edev->res[i]))
 			goto failed;
 	}
@@ -314,41 +313,40 @@
 {
         int i, c;
 	struct eisa_device *edev;
+	char *enabled_str;
 
-	printk(KERN_INFO "EISA: Probing bus %d at %s\n",
-	       root->bus_nr, dev_name(root->dev));
+	dev_info(root->dev, "Probing EISA bus %d\n", root->bus_nr);
 
 	/* First try to get hold of slot 0. If there is no device
 	 * here, simply fail, unless root->force_probe is set. */
 	
 	edev = kzalloc(sizeof(*edev), GFP_KERNEL);
 	if (!edev) {
-		printk(KERN_ERR "EISA: Couldn't allocate mainboard slot\n");
+		dev_err(root->dev, "EISA: Couldn't allocate mainboard slot\n");
 		return -ENOMEM;
 	}
 		
-	if (eisa_request_resources(root, edev, 0)) {
-		printk(KERN_WARNING \
-		       "EISA: Cannot allocate resource for mainboard\n");
-		kfree(edev);
-		if (!root->force_probe)
-			return -EBUSY;
-		goto force_probe;
-	}
-
 	if (eisa_init_device(root, edev, 0)) {
-		eisa_release_resources(edev);
 		kfree(edev);
 		if (!root->force_probe)
 			return -ENODEV;
 		goto force_probe;
 	}
 
-	printk(KERN_INFO "EISA: Mainboard %s detected.\n", edev->id.sig);
+	if (eisa_request_resources(root, edev, 0)) {
+		dev_warn(root->dev,
+		         "EISA: Cannot allocate resource for mainboard\n");
+		kfree(edev);
+		if (!root->force_probe)
+			return -EBUSY;
+		goto force_probe;
+	}
+
+	dev_info(&edev->dev, "EISA: Mainboard %s detected\n", edev->id.sig);
 
 	if (eisa_register_device(edev)) {
-		printk(KERN_ERR "EISA: Failed to register %s\n",
-		       edev->id.sig);
+		dev_err(&edev->dev, "EISA: Failed to register %s\n",
+		        edev->id.sig);
 		eisa_release_resources(edev);
 		kfree(edev);
 	}
@@ -358,55 +356,47 @@
         for (c = 0, i = 1; i <= root->slots; i++) {
 		edev = kzalloc(sizeof(*edev), GFP_KERNEL);
 		if (!edev) {
-			printk(KERN_ERR "EISA: Out of memory for slot %d\n", i);
-			continue;
-		}
-
-		if (eisa_request_resources(root, edev, i)) {
-			printk(KERN_WARNING \
-			       "Cannot allocate resource for EISA slot %d\n",
-			       i);
-			kfree(edev);
+			dev_err(root->dev, "EISA: Out of memory for slot %d\n",
+				i);
 			continue;
 		}
 
 		if (eisa_init_device(root, edev, i)) {
-			eisa_release_resources(edev);
 			kfree(edev);
 			continue;
 		}
-		
-		printk(KERN_INFO "EISA: slot %d : %s detected",
-		       i, edev->id.sig);
-			
-		switch (edev->state) {
-		case EISA_CONFIG_ENABLED | EISA_CONFIG_FORCED:
-			printk(" (forced enabled)");
-			break;
 
-		case EISA_CONFIG_FORCED:
-			printk(" (forced disabled)");
-			break;
-
-		case 0:
-			printk(" (disabled)");
-			break;
+		if (eisa_request_resources(root, edev, i)) {
+			dev_warn(root->dev,
+			         "Cannot allocate resource for EISA slot %d\n",
+			         i);
+			kfree(edev);
+			continue;
 		}
-			
-		printk (".\n");
+
+		if (edev->state == (EISA_CONFIG_ENABLED | EISA_CONFIG_FORCED))
+			enabled_str = " (forced enabled)";
+		else if (edev->state == EISA_CONFIG_FORCED)
+			enabled_str = " (forced disabled)";
+		else if (edev->state == 0)
+			enabled_str = " (disabled)";
+		else
+			enabled_str = "";
+
+		dev_info(&edev->dev, "EISA: slot %d: %s detected%s\n", i,
+			 edev->id.sig, enabled_str);
 
 		c++;
 
 		if (eisa_register_device(edev)) {
-			printk(KERN_ERR "EISA: Failed to register %s\n",
-			       edev->id.sig);
+			dev_err(&edev->dev, "EISA: Failed to register %s\n",
+			        edev->id.sig);
 			eisa_release_resources(edev);
 			kfree(edev);
 		}
         }
 
-	printk(KERN_INFO "EISA: Detected %d card%s.\n", c, c == 1 ? "" : "s");
-
+	dev_info(root->dev, "EISA: Detected %d card%s\n", c, c == 1 ? "" : "s");
 	return 0;
 }
 
diff --git a/drivers/eisa/pci_eisa.c b/drivers/eisa/pci_eisa.c
index cdae207..0d42ea7 100644
--- a/drivers/eisa/pci_eisa.c
+++ b/drivers/eisa/pci_eisa.c
@@ -25,8 +25,7 @@
 	int rc;
 
 	if ((rc = pci_enable_device (pdev))) {
-		printk (KERN_ERR "pci_eisa : Could not enable device %s\n",
-			pci_name(pdev));
+		dev_err(&pdev->dev, "Could not enable device\n");
 		return rc;
 	}
 
@@ -38,7 +37,7 @@
 	dev_set_drvdata(pci_eisa_root.dev, &pci_eisa_root);
 
 	if (eisa_root_register (&pci_eisa_root)) {
-		printk (KERN_ERR "pci_eisa : Could not register EISA root\n");
+		dev_err(&pdev->dev, "Could not register EISA root\n");
 		return -1;
 	}
 
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 98f555d..e046d7a 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -173,7 +173,7 @@
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
 
-	return calc_devid(pdev->bus->number, pdev->devfn);
+	return PCI_DEVID(pdev->bus->number, pdev->devfn);
 }
 
 static struct iommu_dev_data *get_dev_data(struct device *dev)
@@ -649,26 +649,26 @@
 	case EVENT_TYPE_ILL_DEV:
 		printk("ILLEGAL_DEV_TABLE_ENTRY device=%02x:%02x.%x "
 		       "address=0x%016llx flags=0x%04x]\n",
-		       PCI_BUS(devid), PCI_SLOT(devid), PCI_FUNC(devid),
+		       PCI_BUS_NUM(devid), PCI_SLOT(devid), PCI_FUNC(devid),
 		       address, flags);
 		dump_dte_entry(devid);
 		break;
 	case EVENT_TYPE_IO_FAULT:
 		printk("IO_PAGE_FAULT device=%02x:%02x.%x "
 		       "domain=0x%04x address=0x%016llx flags=0x%04x]\n",
-		       PCI_BUS(devid), PCI_SLOT(devid), PCI_FUNC(devid),
+		       PCI_BUS_NUM(devid), PCI_SLOT(devid), PCI_FUNC(devid),
 		       domid, address, flags);
 		break;
 	case EVENT_TYPE_DEV_TAB_ERR:
 		printk("DEV_TAB_HARDWARE_ERROR device=%02x:%02x.%x "
 		       "address=0x%016llx flags=0x%04x]\n",
-		       PCI_BUS(devid), PCI_SLOT(devid), PCI_FUNC(devid),
+		       PCI_BUS_NUM(devid), PCI_SLOT(devid), PCI_FUNC(devid),
 		       address, flags);
 		break;
 	case EVENT_TYPE_PAGE_TAB_ERR:
 		printk("PAGE_TAB_HARDWARE_ERROR device=%02x:%02x.%x "
 		       "domain=0x%04x address=0x%016llx flags=0x%04x]\n",
-		       PCI_BUS(devid), PCI_SLOT(devid), PCI_FUNC(devid),
+		       PCI_BUS_NUM(devid), PCI_SLOT(devid), PCI_FUNC(devid),
 		       domid, address, flags);
 		break;
 	case EVENT_TYPE_ILL_CMD:
@@ -682,13 +682,13 @@
 	case EVENT_TYPE_IOTLB_INV_TO:
 		printk("IOTLB_INV_TIMEOUT device=%02x:%02x.%x "
 		       "address=0x%016llx]\n",
-		       PCI_BUS(devid), PCI_SLOT(devid), PCI_FUNC(devid),
+		       PCI_BUS_NUM(devid), PCI_SLOT(devid), PCI_FUNC(devid),
 		       address);
 		break;
 	case EVENT_TYPE_INV_DEV_REQ:
 		printk("INVALID_DEVICE_REQUEST device=%02x:%02x.%x "
 		       "address=0x%016llx flags=0x%04x]\n",
-		       PCI_BUS(devid), PCI_SLOT(devid), PCI_FUNC(devid),
+		       PCI_BUS_NUM(devid), PCI_SLOT(devid), PCI_FUNC(devid),
 		       address, flags);
 		break;
 	default:
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index b6ecddb..551768a 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -406,7 +406,7 @@
 	u32 cap;
 
 	cap = read_pci_config(bus, dev, fn, cap_ptr+MMIO_RANGE_OFFSET);
-	update_last_devid(calc_devid(MMIO_GET_BUS(cap), MMIO_GET_LD(cap)));
+	update_last_devid(PCI_DEVID(MMIO_GET_BUS(cap), MMIO_GET_LD(cap)));
 
 	return 0;
 }
@@ -423,7 +423,7 @@
 	p += sizeof(*h);
 	end += h->length;
 
-	find_last_devid_on_pci(PCI_BUS(h->devid),
+	find_last_devid_on_pci(PCI_BUS_NUM(h->devid),
 			PCI_SLOT(h->devid),
 			PCI_FUNC(h->devid),
 			h->cap_ptr);
@@ -784,10 +784,10 @@
 
 			DUMP_printk("  DEV_ALL\t\t\t first devid: %02x:%02x.%x"
 				    " last device %02x:%02x.%x flags: %02x\n",
-				    PCI_BUS(iommu->first_device),
+				    PCI_BUS_NUM(iommu->first_device),
 				    PCI_SLOT(iommu->first_device),
 				    PCI_FUNC(iommu->first_device),
-				    PCI_BUS(iommu->last_device),
+				    PCI_BUS_NUM(iommu->last_device),
 				    PCI_SLOT(iommu->last_device),
 				    PCI_FUNC(iommu->last_device),
 				    e->flags);
@@ -801,7 +801,7 @@
 
 			DUMP_printk("  DEV_SELECT\t\t\t devid: %02x:%02x.%x "
 				    "flags: %02x\n",
-				    PCI_BUS(e->devid),
+				    PCI_BUS_NUM(e->devid),
 				    PCI_SLOT(e->devid),
 				    PCI_FUNC(e->devid),
 				    e->flags);
@@ -813,7 +813,7 @@
 
 			DUMP_printk("  DEV_SELECT_RANGE_START\t "
 				    "devid: %02x:%02x.%x flags: %02x\n",
-				    PCI_BUS(e->devid),
+				    PCI_BUS_NUM(e->devid),
 				    PCI_SLOT(e->devid),
 				    PCI_FUNC(e->devid),
 				    e->flags);
@@ -827,11 +827,11 @@
 
 			DUMP_printk("  DEV_ALIAS\t\t\t devid: %02x:%02x.%x "
 				    "flags: %02x devid_to: %02x:%02x.%x\n",
-				    PCI_BUS(e->devid),
+				    PCI_BUS_NUM(e->devid),
 				    PCI_SLOT(e->devid),
 				    PCI_FUNC(e->devid),
 				    e->flags,
-				    PCI_BUS(e->ext >> 8),
+				    PCI_BUS_NUM(e->ext >> 8),
 				    PCI_SLOT(e->ext >> 8),
 				    PCI_FUNC(e->ext >> 8));
 
@@ -846,11 +846,11 @@
 			DUMP_printk("  DEV_ALIAS_RANGE\t\t "
 				    "devid: %02x:%02x.%x flags: %02x "
 				    "devid_to: %02x:%02x.%x\n",
-				    PCI_BUS(e->devid),
+				    PCI_BUS_NUM(e->devid),
 				    PCI_SLOT(e->devid),
 				    PCI_FUNC(e->devid),
 				    e->flags,
-				    PCI_BUS(e->ext >> 8),
+				    PCI_BUS_NUM(e->ext >> 8),
 				    PCI_SLOT(e->ext >> 8),
 				    PCI_FUNC(e->ext >> 8));
 
@@ -864,7 +864,7 @@
 
 			DUMP_printk("  DEV_EXT_SELECT\t\t devid: %02x:%02x.%x "
 				    "flags: %02x ext: %08x\n",
-				    PCI_BUS(e->devid),
+				    PCI_BUS_NUM(e->devid),
 				    PCI_SLOT(e->devid),
 				    PCI_FUNC(e->devid),
 				    e->flags, e->ext);
@@ -877,7 +877,7 @@
 
 			DUMP_printk("  DEV_EXT_SELECT_RANGE\t devid: "
 				    "%02x:%02x.%x flags: %02x ext: %08x\n",
-				    PCI_BUS(e->devid),
+				    PCI_BUS_NUM(e->devid),
 				    PCI_SLOT(e->devid),
 				    PCI_FUNC(e->devid),
 				    e->flags, e->ext);
@@ -890,7 +890,7 @@
 		case IVHD_DEV_RANGE_END:
 
 			DUMP_printk("  DEV_RANGE_END\t\t devid: %02x:%02x.%x\n",
-				    PCI_BUS(e->devid),
+				    PCI_BUS_NUM(e->devid),
 				    PCI_SLOT(e->devid),
 				    PCI_FUNC(e->devid));
 
@@ -924,7 +924,7 @@
 
 			DUMP_printk("  DEV_SPECIAL(%s[%d])\t\tdevid: %02x:%02x.%x\n",
 				    var, (int)handle,
-				    PCI_BUS(devid),
+				    PCI_BUS_NUM(devid),
 				    PCI_SLOT(devid),
 				    PCI_FUNC(devid));
 
@@ -1086,7 +1086,7 @@
 
 			DUMP_printk("device: %02x:%02x.%01x cap: %04x "
 				    "seg: %d flags: %01x info %04x\n",
-				    PCI_BUS(h->devid), PCI_SLOT(h->devid),
+				    PCI_BUS_NUM(h->devid), PCI_SLOT(h->devid),
 				    PCI_FUNC(h->devid), h->cap_ptr,
 				    h->pci_seg, h->flags, h->info);
 			DUMP_printk("       mmio-addr: %016llx\n",
@@ -1116,7 +1116,7 @@
 	int cap_ptr = iommu->cap_ptr;
 	u32 range, misc, low, high;
 
-	iommu->dev = pci_get_bus_and_slot(PCI_BUS(iommu->devid),
+	iommu->dev = pci_get_bus_and_slot(PCI_BUS_NUM(iommu->devid),
 					  iommu->devid & 0xff);
 	if (!iommu->dev)
 		return -ENODEV;
@@ -1128,9 +1128,9 @@
 	pci_read_config_dword(iommu->dev, cap_ptr + MMIO_MISC_OFFSET,
 			      &misc);
 
-	iommu->first_device = calc_devid(MMIO_GET_BUS(range),
+	iommu->first_device = PCI_DEVID(MMIO_GET_BUS(range),
 					 MMIO_GET_FD(range));
-	iommu->last_device = calc_devid(MMIO_GET_BUS(range),
+	iommu->last_device = PCI_DEVID(MMIO_GET_BUS(range),
 					MMIO_GET_LD(range));
 
 	if (!(iommu->cap & (1 << IOMMU_CAP_IOTLB)))
@@ -1388,8 +1388,8 @@
 
 	DUMP_printk("%s devid_start: %02x:%02x.%x devid_end: %02x:%02x.%x"
 		    " range_start: %016llx range_end: %016llx flags: %x\n", s,
-		    PCI_BUS(e->devid_start), PCI_SLOT(e->devid_start),
-		    PCI_FUNC(e->devid_start), PCI_BUS(e->devid_end),
+		    PCI_BUS_NUM(e->devid_start), PCI_SLOT(e->devid_start),
+		    PCI_FUNC(e->devid_start), PCI_BUS_NUM(e->devid_end),
 		    PCI_SLOT(e->devid_end), PCI_FUNC(e->devid_end),
 		    e->address_start, e->address_end, m->flags);
 
diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
index e38ab43..ec36cf6 100644
--- a/drivers/iommu/amd_iommu_types.h
+++ b/drivers/iommu/amd_iommu_types.h
@@ -24,6 +24,7 @@
 #include <linux/mutex.h>
 #include <linux/list.h>
 #include <linux/spinlock.h>
+#include <linux/pci.h>
 
 /*
  * Maximum number of IOMMUs supported
@@ -315,9 +316,6 @@
 
 #define MAX_DOMAIN_ID 65536
 
-/* FIXME: move this macro to <linux/pci.h> */
-#define PCI_BUS(x) (((x) >> 8) & 0xff)
-
 /* Protection domain flags */
 #define PD_DMA_OPS_MASK		(1UL << 0) /* domain used for dma_ops */
 #define PD_DEFAULT_MASK		(1UL << 1) /* domain is a default dma_ops
@@ -703,13 +701,6 @@
  */
 extern void iommu_flush_all_caches(struct amd_iommu *iommu);
 
-/* takes bus and device/function and returns the device id
- * FIXME: should that be in generic PCI code? */
-static inline u16 calc_devid(u8 bus, u8 devfn)
-{
-	return (((u16)bus) << 8) | devfn;
-}
-
 static inline int get_ioapic_devid(int id)
 {
 	struct devid_map *entry;
diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
index 8647dc6..748f8f3 100644
--- a/drivers/pci/bus.c
+++ b/drivers/pci/bus.c
@@ -202,20 +202,16 @@
 		if (dev->is_added)
 			continue;
 		retval = pci_bus_add_device(dev);
+		if (retval)
+			dev_err(&dev->dev, "Error adding device (%d)\n",
+				retval);
 	}
 
 	list_for_each_entry(dev, &bus->devices, bus_list) {
 		BUG_ON(!dev->is_added);
-
 		child = dev->subordinate;
-
-		if (!child)
-			continue;
-		pci_bus_add_devices(child);
-
-		if (child->is_added)
-			continue;
-		child->is_added = 1;
+		if (child)
+			pci_bus_add_devices(child);
 	}
 }
 
diff --git a/drivers/pci/hotplug/Kconfig b/drivers/pci/hotplug/Kconfig
index 13e9e63..9fcb87f 100644
--- a/drivers/pci/hotplug/Kconfig
+++ b/drivers/pci/hotplug/Kconfig
@@ -52,15 +52,12 @@
 	  When in doubt, say N.
 
 config HOTPLUG_PCI_ACPI
-	tristate "ACPI PCI Hotplug driver"
-	depends on (!ACPI_DOCK && ACPI) || (ACPI_DOCK)
+	bool "ACPI PCI Hotplug driver"
+	depends on HOTPLUG_PCI=y && ((!ACPI_DOCK && ACPI) || (ACPI_DOCK))
 	help
 	  Say Y here if you have a system that supports PCI Hotplug using
 	  ACPI.
 
-	  To compile this driver as a module, choose M here: the
-	  module will be called acpiphp.
-
 	  When in doubt, say N.
 
 config HOTPLUG_PCI_ACPI_IBM
diff --git a/drivers/pci/hotplug/acpiphp.h b/drivers/pci/hotplug/acpiphp.h
index b70ac00..6fdd49c 100644
--- a/drivers/pci/hotplug/acpiphp.h
+++ b/drivers/pci/hotplug/acpiphp.h
@@ -73,8 +73,9 @@
  */
 struct acpiphp_bridge {
 	struct list_head list;
+	struct list_head slots;
+	struct kref ref;
 	acpi_handle handle;
-	struct acpiphp_slot *slots;
 
 	/* Ejectable PCI-to-PCI bridge (PCI bridge and PCI function) */
 	struct acpiphp_func *func;
@@ -97,7 +98,7 @@
  * PCI slot information for each *physical* PCI slot
  */
 struct acpiphp_slot {
-	struct acpiphp_slot *next;
+	struct list_head node;
 	struct acpiphp_bridge *bridge;	/* parent */
 	struct list_head funcs;		/* one slot may have different
 					   objects (i.e. for each function) */
@@ -119,7 +120,6 @@
  */
 struct acpiphp_func {
 	struct acpiphp_slot *slot;	/* parent */
-	struct acpiphp_bridge *bridge;	/* Ejectable PCI-to-PCI bridge */
 
 	struct list_head sibling;
 	struct notifier_block nb;
@@ -146,10 +146,6 @@
 #define ACPI_PCI_HOST_HID		"PNP0A03"
 
 /* ACPI _STA method value (ignore bit 4; battery present) */
-#define ACPI_STA_PRESENT		(0x00000001)
-#define ACPI_STA_ENABLED		(0x00000002)
-#define ACPI_STA_SHOW_IN_UI		(0x00000004)
-#define ACPI_STA_FUNCTIONING		(0x00000008)
 #define ACPI_STA_ALL			(0x0000000f)
 
 /* bridge flags */
@@ -174,25 +170,24 @@
 /* function prototypes */
 
 /* acpiphp_core.c */
-extern int acpiphp_register_attention(struct acpiphp_attention_info*info);
-extern int acpiphp_unregister_attention(struct acpiphp_attention_info *info);
-extern int acpiphp_register_hotplug_slot(struct acpiphp_slot *slot);
-extern void acpiphp_unregister_hotplug_slot(struct acpiphp_slot *slot);
+int acpiphp_register_attention(struct acpiphp_attention_info*info);
+int acpiphp_unregister_attention(struct acpiphp_attention_info *info);
+int acpiphp_register_hotplug_slot(struct acpiphp_slot *slot);
+void acpiphp_unregister_hotplug_slot(struct acpiphp_slot *slot);
 
 /* acpiphp_glue.c */
-extern int acpiphp_glue_init (void);
-extern void acpiphp_glue_exit (void);
 typedef int (*acpiphp_callback)(struct acpiphp_slot *slot, void *data);
 
-extern int acpiphp_enable_slot (struct acpiphp_slot *slot);
-extern int acpiphp_disable_slot (struct acpiphp_slot *slot);
-extern int acpiphp_eject_slot (struct acpiphp_slot *slot);
-extern u8 acpiphp_get_power_status (struct acpiphp_slot *slot);
-extern u8 acpiphp_get_attention_status (struct acpiphp_slot *slot);
-extern u8 acpiphp_get_latch_status (struct acpiphp_slot *slot);
-extern u8 acpiphp_get_adapter_status (struct acpiphp_slot *slot);
+int acpiphp_enable_slot(struct acpiphp_slot *slot);
+int acpiphp_disable_slot(struct acpiphp_slot *slot);
+int acpiphp_eject_slot(struct acpiphp_slot *slot);
+u8 acpiphp_get_power_status(struct acpiphp_slot *slot);
+u8 acpiphp_get_attention_status(struct acpiphp_slot *slot);
+u8 acpiphp_get_latch_status(struct acpiphp_slot *slot);
+u8 acpiphp_get_adapter_status(struct acpiphp_slot *slot);
 
 /* variables */
 extern bool acpiphp_debug;
+extern bool acpiphp_disabled;
 
 #endif /* _ACPIPHP_H */
diff --git a/drivers/pci/hotplug/acpiphp_core.c b/drivers/pci/hotplug/acpiphp_core.c
index c2fd309..ca81279 100644
--- a/drivers/pci/hotplug/acpiphp_core.c
+++ b/drivers/pci/hotplug/acpiphp_core.c
@@ -37,6 +37,7 @@
 
 #include <linux/kernel.h>
 #include <linux/pci.h>
+#include <linux/pci-acpi.h>
 #include <linux/pci_hotplug.h>
 #include <linux/slab.h>
 #include <linux/smp.h>
@@ -48,6 +49,7 @@
 #define SLOT_NAME_SIZE  21              /* {_SUN} */
 
 bool acpiphp_debug;
+bool acpiphp_disabled;
 
 /* local variables */
 static struct acpiphp_attention_info *attention_info;
@@ -60,7 +62,9 @@
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
 MODULE_PARM_DESC(debug, "Debugging mode enabled or not");
+MODULE_PARM_DESC(disable, "disable acpiphp driver");
 module_param_named(debug, acpiphp_debug, bool, 0644);
+module_param_named(disable, acpiphp_disabled, bool, 0444);
 
 /* export the attention callback registration methods */
 EXPORT_SYMBOL_GPL(acpiphp_register_attention);
@@ -351,27 +355,9 @@
 }
 
 
-static int __init acpiphp_init(void)
+void __init acpiphp_init(void)
 {
-	info(DRIVER_DESC " version: " DRIVER_VERSION "\n");
-
-	if (acpi_pci_disabled)
-		return 0;
-
-	/* read all the ACPI info from the system */
-	/* initialize internal data structure etc. */
-	return acpiphp_glue_init();
+	info(DRIVER_DESC " version: " DRIVER_VERSION "%s\n",
+		acpiphp_disabled ? ", disabled by user; please report a bug"
+				 : "");
 }
-
-
-static void __exit acpiphp_exit(void)
-{
-	if (acpi_pci_disabled)
-		return;
-
-	/* deallocate internal data structures etc. */
-	acpiphp_glue_exit();
-}
-
-module_init(acpiphp_init);
-module_exit(acpiphp_exit);
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index 270fdba..96fed19 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -54,6 +54,7 @@
 #include "acpiphp.h"
 
 static LIST_HEAD(bridge_list);
+static DEFINE_MUTEX(bridge_mutex);
 
 #define MY_NAME "acpiphp_glue"
 
@@ -61,6 +62,7 @@
 static void acpiphp_sanitize_bus(struct pci_bus *bus);
 static void acpiphp_set_hpp_values(struct pci_bus *bus);
 static void handle_hotplug_event_func(acpi_handle handle, u32 type, void *context);
+static void free_bridge(struct kref *kref);
 
 /* callback routine to check for the existence of a pci dock device */
 static acpi_status
@@ -76,6 +78,39 @@
 	}
 }
 
+static inline void get_bridge(struct acpiphp_bridge *bridge)
+{
+	kref_get(&bridge->ref);
+}
+
+static inline void put_bridge(struct acpiphp_bridge *bridge)
+{
+	kref_put(&bridge->ref, free_bridge);
+}
+
+static void free_bridge(struct kref *kref)
+{
+	struct acpiphp_bridge *bridge;
+	struct acpiphp_slot *slot, *next;
+	struct acpiphp_func *func, *tmp;
+
+	bridge = container_of(kref, struct acpiphp_bridge, ref);
+
+	list_for_each_entry_safe(slot, next, &bridge->slots, node) {
+		list_for_each_entry_safe(func, tmp, &slot->funcs, sibling) {
+			kfree(func);
+		}
+		kfree(slot);
+	}
+
+	/* Release reference acquired by acpiphp_bridge_handle_to_function() */
+	if ((bridge->flags & BRIDGE_HAS_EJ0) && bridge->func)
+		put_bridge(bridge->func->slot->bridge);
+	put_device(&bridge->pci_bus->dev);
+	pci_dev_put(bridge->pci_dev);
+	kfree(bridge);
+}
+
 /*
  * the _DCK method can do funny things... and sometimes not
  * hah-hah funny.
@@ -154,9 +189,10 @@
 	acpi_handle tmp;
 	acpi_status status = AE_OK;
 	unsigned long long adr, sun;
-	int device, function, retval;
+	int device, function, retval, found = 0;
 	struct pci_bus *pbus = bridge->pci_bus;
 	struct pci_dev *pdev;
+	u32 val;
 
 	if (!acpi_pci_check_ejectable(pbus, handle) && !is_dock_device(handle))
 		return AE_OK;
@@ -170,7 +206,7 @@
 	device = (adr >> 16) & 0xffff;
 	function = adr & 0xffff;
 
-	pdev = pbus->self;
+	pdev = bridge->pci_dev;
 	if (pdev && device_is_managed_by_native_pciehp(pdev))
 		return AE_OK;
 
@@ -178,7 +214,6 @@
 	if (!newfunc)
 		return AE_NO_MEMORY;
 
-	INIT_LIST_HEAD(&newfunc->sibling);
 	newfunc->handle = handle;
 	newfunc->function = function;
 
@@ -207,14 +242,15 @@
 	}
 
 	/* search for objects that share the same slot */
-	for (slot = bridge->slots; slot; slot = slot->next)
+	list_for_each_entry(slot, &bridge->slots, node)
 		if (slot->device == device) {
 			if (slot->sun != sun)
 				warn("sibling found, but _SUN doesn't match!\n");
+			found = 1;
 			break;
 		}
 
-	if (!slot) {
+	if (!found) {
 		slot = kzalloc(sizeof(struct acpiphp_slot), GFP_KERNEL);
 		if (!slot) {
 			kfree(newfunc);
@@ -227,9 +263,9 @@
 		INIT_LIST_HEAD(&slot->funcs);
 		mutex_init(&slot->crit_sect);
 
-		slot->next = bridge->slots;
-		bridge->slots = slot;
-
+		mutex_lock(&bridge_mutex);
+		list_add_tail(&slot->node, &bridge->slots);
+		mutex_unlock(&bridge_mutex);
 		bridge->nr_slots++;
 
 		dbg("found ACPI PCI Hotplug slot %llu at PCI %04x:%02x:%02x\n",
@@ -247,13 +283,13 @@
 	}
 
 	newfunc->slot = slot;
+	mutex_lock(&bridge_mutex);
 	list_add_tail(&newfunc->sibling, &slot->funcs);
+	mutex_unlock(&bridge_mutex);
 
-	pdev = pci_get_slot(pbus, PCI_DEVFN(device, function));
-	if (pdev) {
+	if (pci_bus_read_dev_vendor_id(pbus, PCI_DEVFN(device, function),
+				       &val, 60*1000))
 		slot->flags |= (SLOT_ENABLED | SLOT_POWEREDON);
-		pci_dev_put(pdev);
-	}
 
 	if (is_dock_device(handle)) {
 		/* we don't want to call this device's _EJ0
@@ -290,7 +326,9 @@
 
  err_exit:
 	bridge->nr_slots--;
-	bridge->slots = slot->next;
+	mutex_lock(&bridge_mutex);
+	list_del(&slot->node);
+	mutex_unlock(&bridge_mutex);
 	kfree(slot);
 	kfree(newfunc);
 
@@ -315,13 +353,17 @@
 	acpi_status status;
 
 	/* must be added to the list prior to calling register_slot */
+	mutex_lock(&bridge_mutex);
 	list_add(&bridge->list, &bridge_list);
+	mutex_unlock(&bridge_mutex);
 
 	/* register all slot objects under this bridge */
 	status = acpi_walk_namespace(ACPI_TYPE_DEVICE, bridge->handle, (u32)1,
 				     register_slot, NULL, bridge, NULL);
 	if (ACPI_FAILURE(status)) {
+		mutex_lock(&bridge_mutex);
 		list_del(&bridge->list);
+		mutex_unlock(&bridge_mutex);
 		return;
 	}
 
@@ -351,178 +393,46 @@
 {
 	struct acpiphp_bridge *bridge;
 	struct acpiphp_slot *slot;
-	struct acpiphp_func *func;
+	struct acpiphp_func *func = NULL;
 
+	mutex_lock(&bridge_mutex);
 	list_for_each_entry(bridge, &bridge_list, list) {
-		for (slot = bridge->slots; slot; slot = slot->next) {
+		list_for_each_entry(slot, &bridge->slots, node) {
 			list_for_each_entry(func, &slot->funcs, sibling) {
-				if (func->handle == handle)
+				if (func->handle == handle) {
+					get_bridge(func->slot->bridge);
+					mutex_unlock(&bridge_mutex);
 					return func;
+				}
 			}
 		}
 	}
+	mutex_unlock(&bridge_mutex);
 
 	return NULL;
 }
 
 
-static inline void config_p2p_bridge_flags(struct acpiphp_bridge *bridge)
-{
-	acpi_handle dummy_handle;
-	struct acpiphp_func *func;
-
-	if (ACPI_SUCCESS(acpi_get_handle(bridge->handle,
-					"_EJ0", &dummy_handle))) {
-		bridge->flags |= BRIDGE_HAS_EJ0;
-
-		dbg("found ejectable p2p bridge\n");
-
-		/* make link between PCI bridge and PCI function */
-		func = acpiphp_bridge_handle_to_function(bridge->handle);
-		if (!func)
-			return;
-		bridge->func = func;
-		func->bridge = bridge;
-	}
-}
-
-
-/* allocate and initialize host bridge data structure */
-static void add_host_bridge(struct acpi_pci_root *root)
-{
-	struct acpiphp_bridge *bridge;
-	acpi_handle handle = root->device->handle;
-
-	bridge = kzalloc(sizeof(struct acpiphp_bridge), GFP_KERNEL);
-	if (bridge == NULL)
-		return;
-
-	bridge->handle = handle;
-
-	bridge->pci_bus = root->bus;
-
-	init_bridge_misc(bridge);
-}
-
-
-/* allocate and initialize PCI-to-PCI bridge data structure */
-static void add_p2p_bridge(acpi_handle *handle)
-{
-	struct acpiphp_bridge *bridge;
-
-	bridge = kzalloc(sizeof(struct acpiphp_bridge), GFP_KERNEL);
-	if (bridge == NULL) {
-		err("out of memory\n");
-		return;
-	}
-
-	bridge->handle = handle;
-	config_p2p_bridge_flags(bridge);
-
-	bridge->pci_dev = acpi_get_pci_dev(handle);
-	bridge->pci_bus = bridge->pci_dev->subordinate;
-	if (!bridge->pci_bus) {
-		err("This is not a PCI-to-PCI bridge!\n");
-		goto err;
-	}
-
-	/*
-	 * Grab a ref to the subordinate PCI bus in case the bus is
-	 * removed via PCI core logical hotplug. The ref pins the bus
-	 * (which we access during module unload).
-	 */
-	get_device(&bridge->pci_bus->dev);
-
-	init_bridge_misc(bridge);
-	return;
- err:
-	pci_dev_put(bridge->pci_dev);
-	kfree(bridge);
-	return;
-}
-
-
-/* callback routine to find P2P bridges */
-static acpi_status
-find_p2p_bridge(acpi_handle handle, u32 lvl, void *context, void **rv)
-{
-	acpi_status status;
-	struct pci_dev *dev;
-
-	dev = acpi_get_pci_dev(handle);
-	if (!dev || !dev->subordinate)
-		goto out;
-
-	/* check if this bridge has ejectable slots */
-	if ((detect_ejectable_slots(handle) > 0)) {
-		dbg("found PCI-to-PCI bridge at PCI %s\n", pci_name(dev));
-		add_p2p_bridge(handle);
-	}
-
-	/* search P2P bridges under this p2p bridge */
-	status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1,
-				     find_p2p_bridge, NULL, NULL, NULL);
-	if (ACPI_FAILURE(status))
-		warn("find_p2p_bridge failed (error code = 0x%x)\n", status);
-
- out:
-	pci_dev_put(dev);
-	return AE_OK;
-}
-
-
-/* find hot-pluggable slots, and then find P2P bridge */
-static int add_bridge(struct acpi_pci_root *root)
-{
-	acpi_status status;
-	unsigned long long tmp;
-	acpi_handle dummy_handle;
-	acpi_handle handle = root->device->handle;
-
-	/* if the bridge doesn't have _STA, we assume it is always there */
-	status = acpi_get_handle(handle, "_STA", &dummy_handle);
-	if (ACPI_SUCCESS(status)) {
-		status = acpi_evaluate_integer(handle, "_STA", NULL, &tmp);
-		if (ACPI_FAILURE(status)) {
-			dbg("%s: _STA evaluation failure\n", __func__);
-			return 0;
-		}
-		if ((tmp & ACPI_STA_FUNCTIONING) == 0)
-			/* don't register this object */
-			return 0;
-	}
-
-	/* check if this bridge has ejectable slots */
-	if (detect_ejectable_slots(handle) > 0) {
-		dbg("found PCI host-bus bridge with hot-pluggable slots\n");
-		add_host_bridge(root);
-	}
-
-	/* search P2P bridges under this host bridge */
-	status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1,
-				     find_p2p_bridge, NULL, NULL, NULL);
-
-	if (ACPI_FAILURE(status))
-		warn("find_p2p_bridge failed (error code = 0x%x)\n", status);
-
-	return 0;
-}
-
 static struct acpiphp_bridge *acpiphp_handle_to_bridge(acpi_handle handle)
 {
 	struct acpiphp_bridge *bridge;
 
+	mutex_lock(&bridge_mutex);
 	list_for_each_entry(bridge, &bridge_list, list)
-		if (bridge->handle == handle)
+		if (bridge->handle == handle) {
+			get_bridge(bridge);
+			mutex_unlock(&bridge_mutex);
 			return bridge;
+		}
+	mutex_unlock(&bridge_mutex);
 
 	return NULL;
 }
 
 static void cleanup_bridge(struct acpiphp_bridge *bridge)
 {
-	struct acpiphp_slot *slot, *next;
-	struct acpiphp_func *func, *tmp;
+	struct acpiphp_slot *slot;
+	struct acpiphp_func *func;
 	acpi_status status;
 	acpi_handle handle = bridge->handle;
 
@@ -543,10 +453,8 @@
 			err("failed to install interrupt notify handler\n");
 	}
 
-	slot = bridge->slots;
-	while (slot) {
-		next = slot->next;
-		list_for_each_entry_safe(func, tmp, &slot->funcs, sibling) {
+	list_for_each_entry(slot, &bridge->slots, node) {
+		list_for_each_entry(func, &slot->funcs, sibling) {
 			if (is_dock_device(func->handle)) {
 				unregister_hotplug_dock_device(func->handle);
 				unregister_dock_notifier(&func->nb);
@@ -558,63 +466,13 @@
 				if (ACPI_FAILURE(status))
 					err("failed to remove notify handler\n");
 			}
-			list_del(&func->sibling);
-			kfree(func);
 		}
 		acpiphp_unregister_hotplug_slot(slot);
-		list_del(&slot->funcs);
-		kfree(slot);
-		slot = next;
 	}
 
-	/*
-	 * Only P2P bridges have a pci_dev
-	 */
-	if (bridge->pci_dev)
-		put_device(&bridge->pci_bus->dev);
-
-	pci_dev_put(bridge->pci_dev);
+	mutex_lock(&bridge_mutex);
 	list_del(&bridge->list);
-	kfree(bridge);
-}
-
-static acpi_status
-cleanup_p2p_bridge(acpi_handle handle, u32 lvl, void *context, void **rv)
-{
-	struct acpiphp_bridge *bridge;
-
-	/* cleanup p2p bridges under this P2P bridge
-	   in a depth-first manner */
-	acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1,
-				cleanup_p2p_bridge, NULL, NULL, NULL);
-
-	bridge = acpiphp_handle_to_bridge(handle);
-	if (bridge)
-		cleanup_bridge(bridge);
-
-	return AE_OK;
-}
-
-static void remove_bridge(struct acpi_pci_root *root)
-{
-	struct acpiphp_bridge *bridge;
-	acpi_handle handle = root->device->handle;
-
-	/* cleanup p2p bridges under this host bridge
-	   in a depth-first manner */
-	acpi_walk_namespace(ACPI_TYPE_DEVICE, handle,
-				(u32)1, cleanup_p2p_bridge, NULL, NULL, NULL);
-
-	/*
-	 * On root bridges with hotplug slots directly underneath (ie,
-	 * no p2p bridge between), we call cleanup_bridge(). 
-	 *
-	 * The else clause cleans up root bridges that either had no
-	 * hotplug slots at all, or had a p2p bridge underneath.
-	 */
-	bridge = acpiphp_handle_to_bridge(handle);
-	if (bridge)
-		cleanup_bridge(bridge);
+	mutex_unlock(&bridge_mutex);
 }
 
 static int power_on_slot(struct acpiphp_slot *slot)
@@ -798,6 +656,7 @@
 		}
 	}
 }
+
 /**
  * enable_device - enable, configure a slot
  * @slot: slot to be enabled
@@ -810,9 +669,7 @@
 	struct pci_dev *dev;
 	struct pci_bus *bus = slot->bridge->pci_bus;
 	struct acpiphp_func *func;
-	int retval = 0;
 	int num, max, pass;
-	acpi_status status;
 
 	if (slot->flags & SLOT_ENABLED)
 		goto err_exit;
@@ -867,23 +724,11 @@
 			slot->flags &= (~SLOT_ENABLED);
 			continue;
 		}
-
-		if (dev->hdr_type != PCI_HEADER_TYPE_BRIDGE &&
-		    dev->hdr_type != PCI_HEADER_TYPE_CARDBUS) {
-			pci_dev_put(dev);
-			continue;
-		}
-
-		status = find_p2p_bridge(func->handle, (u32)1, bus, NULL);
-		if (ACPI_FAILURE(status))
-			warn("find_p2p_bridge failed (error code = 0x%x)\n",
-				status);
-		pci_dev_put(dev);
 	}
 
 
  err_exit:
-	return retval;
+	return 0;
 }
 
 /* return first device in slot, acquiring a reference on it */
@@ -912,23 +757,6 @@
 {
 	struct acpiphp_func *func;
 	struct pci_dev *pdev;
-	struct pci_bus *bus = slot->bridge->pci_bus;
-
-	/* The slot will be enabled when func 0 is added, so check
-	   func 0 before disable the slot. */
-	pdev = pci_get_slot(bus, PCI_DEVFN(slot->device, 0));
-	if (!pdev)
-		goto err_exit;
-	pci_dev_put(pdev);
-
-	list_for_each_entry(func, &slot->funcs, sibling) {
-		if (func->bridge) {
-			/* cleanup p2p bridges under this P2P bridge */
-			cleanup_p2p_bridge(func->bridge->handle,
-						(u32)1, NULL, NULL);
-			func->bridge = NULL;
-		}
-	}
 
 	/*
 	 * enable_device() enumerates all functions in this device via
@@ -947,7 +775,6 @@
 
 	slot->flags &= (~SLOT_ENABLED);
 
-err_exit:
 	return 0;
 }
 
@@ -1037,7 +864,7 @@
 
 	enabled = disabled = 0;
 
-	for (slot = bridge->slots; slot; slot = slot->next) {
+	list_for_each_entry(slot, &bridge->slots, node) {
 		unsigned int status = get_slot_status(slot);
 		if (slot->flags & SLOT_ENABLED) {
 			if (status == ACPI_STA_ALL)
@@ -1082,11 +909,11 @@
  */
 static void acpiphp_sanitize_bus(struct pci_bus *bus)
 {
-	struct pci_dev *dev;
+	struct pci_dev *dev, *tmp;
 	int i;
 	unsigned long type_mask = IORESOURCE_IO | IORESOURCE_MEM;
 
-	list_for_each_entry(dev, &bus->devices, bus_list) {
+	list_for_each_entry_safe(dev, tmp, &bus->devices, bus_list) {
 		for (i=0; i<PCI_BRIDGE_RESOURCES; i++) {
 			struct resource *res = &dev->resource[i];
 			if ((res->flags & type_mask) && !res->start &&
@@ -1118,6 +945,7 @@
 		dbg("%s: re-enumerating slots under %s\n",
 			__func__, objname);
 		acpiphp_check_bridge(bridge);
+		put_bridge(bridge);
 	}
 	return AE_OK ;
 }
@@ -1195,6 +1023,7 @@
 
 	acpi_scan_lock_release();
 	kfree(hp_work); /* allocated in handle_hotplug_event_bridge */
+	put_bridge(bridge);
 }
 
 /**
@@ -1208,6 +1037,8 @@
 static void handle_hotplug_event_bridge(acpi_handle handle, u32 type,
 					void *context)
 {
+	struct acpiphp_bridge *bridge = context;
+
 	/*
 	 * Currently the code adds all hotplug events to the kacpid_wq
 	 * queue when it should add hotplug events to the kacpi_hotplug_wq.
@@ -1216,6 +1047,7 @@
 	 * For now just re-add this work to the kacpi_hotplug_wq so we
 	 * don't deadlock on hotplug actions.
 	 */
+	get_bridge(bridge);
 	alloc_acpi_hp_work(handle, type, context, _handle_hotplug_event_bridge);
 }
 
@@ -1270,6 +1102,7 @@
 
 	acpi_scan_lock_release();
 	kfree(hp_work); /* allocated in handle_hotplug_event_func */
+	put_bridge(func->slot->bridge);
 }
 
 /**
@@ -1283,6 +1116,8 @@
 static void handle_hotplug_event_func(acpi_handle handle, u32 type,
 				      void *context)
 {
+	struct acpiphp_func *func = context;
+
 	/*
 	 * Currently the code adds all hotplug events to the kacpid_wq
 	 * queue when it should add hotplug events to the kacpi_hotplug_wq.
@@ -1291,33 +1126,69 @@
 	 * For now just re-add this work to the kacpi_hotplug_wq so we
 	 * don't deadlock on hotplug actions.
 	 */
+	get_bridge(func->slot->bridge);
 	alloc_acpi_hp_work(handle, type, context, _handle_hotplug_event_func);
 }
 
-static struct acpi_pci_driver acpi_pci_hp_driver = {
-	.add =		add_bridge,
-	.remove =	remove_bridge,
-};
-
-/**
- * acpiphp_glue_init - initializes all PCI hotplug - ACPI glue data structures
+/*
+ * Create hotplug slots for the PCI bus.
+ * It should always return 0 to avoid skipping following notifiers.
  */
-int __init acpiphp_glue_init(void)
+void acpiphp_enumerate_slots(struct pci_bus *bus, acpi_handle handle)
 {
-	acpi_pci_register_driver(&acpi_pci_hp_driver);
+	acpi_handle dummy_handle;
+	struct acpiphp_bridge *bridge;
 
-	return 0;
+	if (acpiphp_disabled)
+		return;
+
+	if (detect_ejectable_slots(handle) <= 0)
+		return;
+
+	bridge = kzalloc(sizeof(struct acpiphp_bridge), GFP_KERNEL);
+	if (bridge == NULL) {
+		err("out of memory\n");
+		return;
+	}
+
+	INIT_LIST_HEAD(&bridge->slots);
+	kref_init(&bridge->ref);
+	bridge->handle = handle;
+	bridge->pci_dev = pci_dev_get(bus->self);
+	bridge->pci_bus = bus;
+
+	/*
+	 * Grab a ref to the subordinate PCI bus in case the bus is
+	 * removed via PCI core logical hotplug. The ref pins the bus
+	 * (which we access during module unload).
+	 */
+	get_device(&bus->dev);
+
+	if (!pci_is_root_bus(bridge->pci_bus) &&
+	    ACPI_SUCCESS(acpi_get_handle(bridge->handle,
+					"_EJ0", &dummy_handle))) {
+		dbg("found ejectable p2p bridge\n");
+		bridge->flags |= BRIDGE_HAS_EJ0;
+		bridge->func = acpiphp_bridge_handle_to_function(handle);
+	}
+
+	init_bridge_misc(bridge);
 }
 
-
-/**
- * acpiphp_glue_exit - terminates all PCI hotplug - ACPI glue data structures
- *
- * This function frees all data allocated in acpiphp_glue_init().
- */
-void  acpiphp_glue_exit(void)
+/* Destroy hotplug slots associated with the PCI bus */
+void acpiphp_remove_slots(struct pci_bus *bus)
 {
-	acpi_pci_unregister_driver(&acpi_pci_hp_driver);
+	struct acpiphp_bridge *bridge, *tmp;
+
+	if (acpiphp_disabled)
+		return;
+
+	list_for_each_entry_safe(bridge, tmp, &bridge_list, list)
+		if (bridge->pci_bus == bus) {
+			cleanup_bridge(bridge);
+			put_bridge(bridge);
+			break;
+		}
 }
 
 /**
@@ -1396,7 +1267,7 @@
 
 	sta = get_slot_status(slot);
 
-	return (sta & ACPI_STA_SHOW_IN_UI) ? 0 : 1;
+	return (sta & ACPI_STA_DEVICE_UI) ? 0 : 1;
 }
 
 
diff --git a/drivers/pci/hotplug/cpci_hotplug.h b/drivers/pci/hotplug/cpci_hotplug.h
index 9fff878..1356211 100644
--- a/drivers/pci/hotplug/cpci_hotplug.h
+++ b/drivers/pci/hotplug/cpci_hotplug.h
@@ -75,28 +75,36 @@
 	return hotplug_slot_name(slot->hotplug_slot);
 }
 
-extern int cpci_hp_register_controller(struct cpci_hp_controller *controller);
-extern int cpci_hp_unregister_controller(struct cpci_hp_controller *controller);
-extern int cpci_hp_register_bus(struct pci_bus *bus, u8 first, u8 last);
-extern int cpci_hp_unregister_bus(struct pci_bus *bus);
-extern int cpci_hp_start(void);
-extern int cpci_hp_stop(void);
+int cpci_hp_register_controller(struct cpci_hp_controller *controller);
+int cpci_hp_unregister_controller(struct cpci_hp_controller *controller);
+int cpci_hp_register_bus(struct pci_bus *bus, u8 first, u8 last);
+int cpci_hp_unregister_bus(struct pci_bus *bus);
+int cpci_hp_start(void);
+int cpci_hp_stop(void);
 
 /*
  * Internal function prototypes, these functions should not be used by
  * board/chassis drivers.
  */
-extern u8 cpci_get_attention_status(struct slot *slot);
-extern u8 cpci_get_latch_status(struct slot *slot);
-extern u8 cpci_get_adapter_status(struct slot *slot);
-extern u16 cpci_get_hs_csr(struct slot * slot);
-extern int cpci_set_attention_status(struct slot *slot, int status);
-extern int cpci_check_and_clear_ins(struct slot * slot);
-extern int cpci_check_ext(struct slot * slot);
-extern int cpci_clear_ext(struct slot * slot);
-extern int cpci_led_on(struct slot * slot);
-extern int cpci_led_off(struct slot * slot);
-extern int cpci_configure_slot(struct slot *slot);
-extern int cpci_unconfigure_slot(struct slot *slot);
+u8 cpci_get_attention_status(struct slot *slot);
+u8 cpci_get_latch_status(struct slot *slot);
+u8 cpci_get_adapter_status(struct slot *slot);
+u16 cpci_get_hs_csr(struct slot * slot);
+int cpci_set_attention_status(struct slot *slot, int status);
+int cpci_check_and_clear_ins(struct slot * slot);
+int cpci_check_ext(struct slot * slot);
+int cpci_clear_ext(struct slot * slot);
+int cpci_led_on(struct slot * slot);
+int cpci_led_off(struct slot * slot);
+int cpci_configure_slot(struct slot *slot);
+int cpci_unconfigure_slot(struct slot *slot);
+
+#ifdef CONFIG_HOTPLUG_PCI_CPCI
+int cpci_hotplug_init(int debug);
+void cpci_hotplug_exit(void);
+#else
+static inline int cpci_hotplug_init(int debug) { return 0; }
+static inline void cpci_hotplug_exit(void) { }
+#endif
 
 #endif	/* _CPCI_HOTPLUG_H */
diff --git a/drivers/pci/hotplug/cpqphp.h b/drivers/pci/hotplug/cpqphp.h
index d8ffc73..516b877 100644
--- a/drivers/pci/hotplug/cpqphp.h
+++ b/drivers/pci/hotplug/cpqphp.h
@@ -404,50 +404,44 @@
 
 
 /* debugfs functions for the hotplug controller info */
-extern void cpqhp_initialize_debugfs(void);
-extern void cpqhp_shutdown_debugfs(void);
-extern void cpqhp_create_debugfs_files(struct controller *ctrl);
-extern void cpqhp_remove_debugfs_files(struct controller *ctrl);
+void cpqhp_initialize_debugfs(void);
+void cpqhp_shutdown_debugfs(void);
+void cpqhp_create_debugfs_files(struct controller *ctrl);
+void cpqhp_remove_debugfs_files(struct controller *ctrl);
 
 /* controller functions */
-extern void cpqhp_pushbutton_thread(unsigned long event_pointer);
-extern irqreturn_t cpqhp_ctrl_intr(int IRQ, void *data);
-extern int cpqhp_find_available_resources(struct controller *ctrl,
-					  void __iomem *rom_start);
-extern int cpqhp_event_start_thread(void);
-extern void cpqhp_event_stop_thread(void);
-extern struct pci_func *cpqhp_slot_create(unsigned char busnumber);
-extern struct pci_func *cpqhp_slot_find(unsigned char bus, unsigned char device,
-					unsigned char index);
-extern int cpqhp_process_SI(struct controller *ctrl, struct pci_func *func);
-extern int cpqhp_process_SS(struct controller *ctrl, struct pci_func *func);
-extern int cpqhp_hardware_test(struct controller *ctrl, int test_num);
+void cpqhp_pushbutton_thread(unsigned long event_pointer);
+irqreturn_t cpqhp_ctrl_intr(int IRQ, void *data);
+int cpqhp_find_available_resources(struct controller *ctrl,
+				   void __iomem *rom_start);
+int cpqhp_event_start_thread(void);
+void cpqhp_event_stop_thread(void);
+struct pci_func *cpqhp_slot_create(unsigned char busnumber);
+struct pci_func *cpqhp_slot_find(unsigned char bus, unsigned char device,
+				 unsigned char index);
+int cpqhp_process_SI(struct controller *ctrl, struct pci_func *func);
+int cpqhp_process_SS(struct controller *ctrl, struct pci_func *func);
+int cpqhp_hardware_test(struct controller *ctrl, int test_num);
 
 /* resource functions */
-extern int	cpqhp_resource_sort_and_combine	(struct pci_resource **head);
+int	cpqhp_resource_sort_and_combine	(struct pci_resource **head);
 
 /* pci functions */
-extern int cpqhp_set_irq(u8 bus_num, u8 dev_num, u8 int_pin, u8 irq_num);
-extern int cpqhp_get_bus_dev(struct controller *ctrl, u8 *bus_num, u8 *dev_num,
-			     u8 slot);
-extern int cpqhp_save_config(struct controller *ctrl, int busnumber,
-			     int is_hot_plug);
-extern int cpqhp_save_base_addr_length(struct controller *ctrl,
-				       struct pci_func *func);
-extern int cpqhp_save_used_resources(struct controller *ctrl,
-				     struct pci_func *func);
-extern int cpqhp_configure_board(struct controller *ctrl,
-				 struct pci_func *func);
-extern int cpqhp_save_slot_config(struct controller *ctrl,
-				  struct pci_func *new_slot);
-extern int cpqhp_valid_replace(struct controller *ctrl, struct pci_func *func);
-extern void cpqhp_destroy_board_resources(struct pci_func *func);
-extern int cpqhp_return_board_resources	(struct pci_func *func,
-					 struct resource_lists *resources);
-extern void cpqhp_destroy_resource_list(struct resource_lists *resources);
-extern int cpqhp_configure_device(struct controller *ctrl,
-				  struct pci_func *func);
-extern int cpqhp_unconfigure_device(struct pci_func *func);
+int cpqhp_set_irq(u8 bus_num, u8 dev_num, u8 int_pin, u8 irq_num);
+int cpqhp_get_bus_dev(struct controller *ctrl, u8 *bus_num, u8 *dev_num,
+		      u8 slot);
+int cpqhp_save_config(struct controller *ctrl, int busnumber, int is_hot_plug);
+int cpqhp_save_base_addr_length(struct controller *ctrl, struct pci_func *func);
+int cpqhp_save_used_resources(struct controller *ctrl, struct pci_func *func);
+int cpqhp_configure_board(struct controller *ctrl, struct pci_func *func);
+int cpqhp_save_slot_config(struct controller *ctrl, struct pci_func *new_slot);
+int cpqhp_valid_replace(struct controller *ctrl, struct pci_func *func);
+void cpqhp_destroy_board_resources(struct pci_func *func);
+int cpqhp_return_board_resources(struct pci_func *func,
+				 struct resource_lists *resources);
+void cpqhp_destroy_resource_list(struct resource_lists *resources);
+int cpqhp_configure_device(struct controller *ctrl, struct pci_func *func);
+int cpqhp_unconfigure_device(struct pci_func *func);
 
 /* Global variables */
 extern int cpqhp_debug;
diff --git a/drivers/pci/hotplug/cpqphp_nvram.h b/drivers/pci/hotplug/cpqphp_nvram.h
index e89c070..34e4e54 100644
--- a/drivers/pci/hotplug/cpqphp_nvram.h
+++ b/drivers/pci/hotplug/cpqphp_nvram.h
@@ -30,26 +30,26 @@
 
 #ifndef CONFIG_HOTPLUG_PCI_COMPAQ_NVRAM
 
-static inline void compaq_nvram_init (void __iomem *rom_start)
+static inline void compaq_nvram_init(void __iomem *rom_start)
 {
 	return;
 }
 
-static inline int compaq_nvram_load (void __iomem *rom_start, struct controller *ctrl)
+static inline int compaq_nvram_load(void __iomem *rom_start, struct controller *ctrl)
 {
 	return 0;
 }
 
-static inline int compaq_nvram_store (void __iomem *rom_start)
+static inline int compaq_nvram_store(void __iomem *rom_start)
 {
 	return 0;
 }
 
 #else
 
-extern void compaq_nvram_init	(void __iomem *rom_start);
-extern int compaq_nvram_load	(void __iomem *rom_start, struct controller *ctrl);
-extern int compaq_nvram_store	(void __iomem *rom_start);
+void compaq_nvram_init(void __iomem *rom_start);
+int compaq_nvram_load(void __iomem *rom_start, struct controller *ctrl);
+int compaq_nvram_store(void __iomem *rom_start);
 
 #endif
 
diff --git a/drivers/pci/hotplug/ibmphp.h b/drivers/pci/hotplug/ibmphp.h
index a8d391a..8c5b258 100644
--- a/drivers/pci/hotplug/ibmphp.h
+++ b/drivers/pci/hotplug/ibmphp.h
@@ -275,17 +275,17 @@
 * FUNCTION PROTOTYPES                                      *
 ***********************************************************/
 
-extern void ibmphp_free_ebda_hpc_queue (void);
-extern int ibmphp_access_ebda (void);
-extern struct slot *ibmphp_get_slot_from_physical_num (u8);
-extern int ibmphp_get_total_hp_slots (void);
-extern void ibmphp_free_ibm_slot (struct slot *);
-extern void ibmphp_free_bus_info_queue (void);
-extern void ibmphp_free_ebda_pci_rsrc_queue (void);
-extern struct bus_info *ibmphp_find_same_bus_num (u32);
-extern int ibmphp_get_bus_index (u8);
-extern u16 ibmphp_get_total_controllers (void);
-extern int ibmphp_register_pci (void);
+void ibmphp_free_ebda_hpc_queue(void);
+int ibmphp_access_ebda(void);
+struct slot *ibmphp_get_slot_from_physical_num(u8);
+int ibmphp_get_total_hp_slots(void);
+void ibmphp_free_ibm_slot(struct slot *);
+void ibmphp_free_bus_info_queue(void);
+void ibmphp_free_ebda_pci_rsrc_queue(void);
+struct bus_info *ibmphp_find_same_bus_num(u32);
+int ibmphp_get_bus_index(u8);
+u16 ibmphp_get_total_controllers(void);
+int ibmphp_register_pci(void);
 
 /* passed parameters */
 #define MEM		0
@@ -381,24 +381,24 @@
 
 /* functions */
 
-extern int ibmphp_rsrc_init (void);
-extern int ibmphp_add_resource (struct resource_node *);
-extern int ibmphp_remove_resource (struct resource_node *);
-extern int ibmphp_find_resource (struct bus_node *, u32, struct resource_node **, int);
-extern int ibmphp_check_resource (struct resource_node *, u8);
-extern int ibmphp_remove_bus (struct bus_node *, u8);
-extern void ibmphp_free_resources (void);
-extern int ibmphp_add_pfmem_from_mem (struct resource_node *);
-extern struct bus_node *ibmphp_find_res_bus (u8);
-extern void ibmphp_print_test (void);	/* for debugging purposes */
+int ibmphp_rsrc_init(void);
+int ibmphp_add_resource(struct resource_node *);
+int ibmphp_remove_resource(struct resource_node *);
+int ibmphp_find_resource(struct bus_node *, u32, struct resource_node **, int);
+int ibmphp_check_resource(struct resource_node *, u8);
+int ibmphp_remove_bus(struct bus_node *, u8);
+void ibmphp_free_resources(void);
+int ibmphp_add_pfmem_from_mem(struct resource_node *);
+struct bus_node *ibmphp_find_res_bus(u8);
+void ibmphp_print_test(void);	/* for debugging purposes */
 
-extern void ibmphp_hpc_initvars (void);
-extern int ibmphp_hpc_readslot (struct slot *, u8, u8 *);
-extern int ibmphp_hpc_writeslot (struct slot *, u8);
-extern void ibmphp_lock_operations (void);
-extern void ibmphp_unlock_operations (void);
-extern int ibmphp_hpc_start_poll_thread (void);
-extern void ibmphp_hpc_stop_poll_thread (void);
+void ibmphp_hpc_initvars(void);
+int ibmphp_hpc_readslot(struct slot *, u8, u8 *);
+int ibmphp_hpc_writeslot(struct slot *, u8);
+void ibmphp_lock_operations(void);
+void ibmphp_unlock_operations(void);
+int ibmphp_hpc_start_poll_thread(void);
+void ibmphp_hpc_stop_poll_thread(void);
 
 //----------------------------------------------------------------------------
 
@@ -749,11 +749,11 @@
 
 /* Functions */
 
-extern int ibmphp_init_devno (struct slot **);	/* This function is called from EBDA, so we need it not be static */
-extern int ibmphp_do_disable_slot (struct slot *slot_cur);
-extern int ibmphp_update_slot_info (struct slot *);	/* This function is called from HPC, so we need it to not be be static */
-extern int ibmphp_configure_card (struct pci_func *, u8);
-extern int ibmphp_unconfigure_card (struct slot **, int);
+int ibmphp_init_devno(struct slot **);	/* This function is called from EBDA, so we need it not be static */
+int ibmphp_do_disable_slot(struct slot *slot_cur);
+int ibmphp_update_slot_info(struct slot *);	/* This function is called from HPC, so we need it to not be be static */
+int ibmphp_configure_card(struct pci_func *, u8);
+int ibmphp_unconfigure_card(struct slot **, int);
 extern struct hotplug_slot_ops ibmphp_hotplug_slot_ops;
 
 #endif				//__IBMPHP_H
diff --git a/drivers/pci/hotplug/pci_hotplug_core.c b/drivers/pci/hotplug/pci_hotplug_core.c
index 202f4a9..ec20f74 100644
--- a/drivers/pci/hotplug/pci_hotplug_core.c
+++ b/drivers/pci/hotplug/pci_hotplug_core.c
@@ -41,6 +41,7 @@
 #include <linux/pci_hotplug.h>
 #include <asm/uaccess.h>
 #include "../pci.h"
+#include "cpci_hotplug.h"
 
 #define MY_NAME	"pci_hotplug"
 
@@ -63,14 +64,6 @@
 static LIST_HEAD(pci_hotplug_slot_list);
 static DEFINE_MUTEX(pci_hp_mutex);
 
-#ifdef CONFIG_HOTPLUG_PCI_CPCI
-extern int cpci_hotplug_init(int debug);
-extern void cpci_hotplug_exit(void);
-#else
-static inline int cpci_hotplug_init(int debug) { return 0; }
-static inline void cpci_hotplug_exit(void) { }
-#endif
-
 /* Weee, fun with macros... */
 #define GET_STATUS(name,type)	\
 static int get_##name (struct hotplug_slot *slot, type *value)		\
@@ -524,13 +517,11 @@
  *
  * Returns 0 if successful, anything else for an error.
  */
-int __must_check pci_hp_change_slot_info(struct hotplug_slot *hotplug,
-					 struct hotplug_slot_info *info)
+int pci_hp_change_slot_info(struct hotplug_slot *hotplug,
+			    struct hotplug_slot_info *info)
 {
-	struct pci_slot *slot;
 	if (!hotplug || !info)
 		return -ENODEV;
-	slot = hotplug->pci_slot;
 
 	memcpy(hotplug->info, info, sizeof(struct hotplug_slot_info));
 
diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h
index 2c113de..7fb3269 100644
--- a/drivers/pci/hotplug/pciehp.h
+++ b/drivers/pci/hotplug/pciehp.h
@@ -127,15 +127,15 @@
 #define NO_CMD_CMPL(ctrl)	((ctrl)->slot_cap & PCI_EXP_SLTCAP_NCCS)
 #define PSN(ctrl)		((ctrl)->slot_cap >> 19)
 
-extern int pciehp_sysfs_enable_slot(struct slot *slot);
-extern int pciehp_sysfs_disable_slot(struct slot *slot);
-extern u8 pciehp_handle_attention_button(struct slot *p_slot);
-extern u8 pciehp_handle_switch_change(struct slot *p_slot);
-extern u8 pciehp_handle_presence_change(struct slot *p_slot);
-extern u8 pciehp_handle_power_fault(struct slot *p_slot);
-extern int pciehp_configure_device(struct slot *p_slot);
-extern int pciehp_unconfigure_device(struct slot *p_slot);
-extern void pciehp_queue_pushbutton_work(struct work_struct *work);
+int pciehp_sysfs_enable_slot(struct slot *slot);
+int pciehp_sysfs_disable_slot(struct slot *slot);
+u8 pciehp_handle_attention_button(struct slot *p_slot);
+u8 pciehp_handle_switch_change(struct slot *p_slot);
+u8 pciehp_handle_presence_change(struct slot *p_slot);
+u8 pciehp_handle_power_fault(struct slot *p_slot);
+int pciehp_configure_device(struct slot *p_slot);
+int pciehp_unconfigure_device(struct slot *p_slot);
+void pciehp_queue_pushbutton_work(struct work_struct *work);
 struct controller *pcie_init(struct pcie_device *dev);
 int pcie_init_notification(struct controller *ctrl);
 int pciehp_enable_slot(struct slot *p_slot);
@@ -166,8 +166,8 @@
 #include <acpi/acpi_bus.h>
 #include <linux/pci-acpi.h>
 
-extern void __init pciehp_acpi_slot_detection_init(void);
-extern int pciehp_acpi_slot_detection_check(struct pci_dev *dev);
+void __init pciehp_acpi_slot_detection_init(void);
+int pciehp_acpi_slot_detection_check(struct pci_dev *dev);
 
 static inline void pciehp_firmware_init(void)
 {
diff --git a/drivers/pci/hotplug/pciehp_acpi.c b/drivers/pci/hotplug/pciehp_acpi.c
index 24d709b..ead7c53 100644
--- a/drivers/pci/hotplug/pciehp_acpi.c
+++ b/drivers/pci/hotplug/pciehp_acpi.c
@@ -90,7 +90,7 @@
 	slot = kzalloc(sizeof(*slot), GFP_KERNEL);
 	if (!slot)
 		return -ENOMEM;
-	slot->number = slot_cap >> 19;
+	slot->number = (slot_cap & PCI_EXP_SLTCAP_PSN) >> 19;
 	list_for_each_entry(tmp, &dummy_slots, list) {
 		if (tmp->number == slot->number)
 			dup_slot_id++;
diff --git a/drivers/pci/hotplug/rpadlpar.h b/drivers/pci/hotplug/rpadlpar.h
index 4a0a59b..81df939 100644
--- a/drivers/pci/hotplug/rpadlpar.h
+++ b/drivers/pci/hotplug/rpadlpar.h
@@ -15,10 +15,10 @@
 #ifndef _RPADLPAR_IO_H_
 #define _RPADLPAR_IO_H_
 
-extern int dlpar_sysfs_init(void);
-extern void dlpar_sysfs_exit(void);
+int dlpar_sysfs_init(void);
+void dlpar_sysfs_exit(void);
 
-extern int dlpar_add_slot(char *drc_name);
-extern int dlpar_remove_slot(char *drc_name);
+int dlpar_add_slot(char *drc_name);
+int dlpar_remove_slot(char *drc_name);
 
 #endif
diff --git a/drivers/pci/hotplug/rpaphp.h b/drivers/pci/hotplug/rpaphp.h
index df56774..3135856 100644
--- a/drivers/pci/hotplug/rpaphp.h
+++ b/drivers/pci/hotplug/rpaphp.h
@@ -86,18 +86,18 @@
 /* function prototypes */
 
 /* rpaphp_pci.c */
-extern int rpaphp_enable_slot(struct slot *slot);
-extern int rpaphp_get_sensor_state(struct slot *slot, int *state);
+int rpaphp_enable_slot(struct slot *slot);
+int rpaphp_get_sensor_state(struct slot *slot, int *state);
 
 /* rpaphp_core.c */
-extern int rpaphp_add_slot(struct device_node *dn);
-extern int rpaphp_get_drc_props(struct device_node *dn, int *drc_index,
+int rpaphp_add_slot(struct device_node *dn);
+int rpaphp_get_drc_props(struct device_node *dn, int *drc_index,
 		char **drc_name, char **drc_type, int *drc_power_domain);
 
 /* rpaphp_slot.c */
-extern void dealloc_slot_struct(struct slot *slot);
-extern struct slot *alloc_slot_struct(struct device_node *dn, int drc_index, char *drc_name, int power_domain);
-extern int rpaphp_register_slot(struct slot *slot);
-extern int rpaphp_deregister_slot(struct slot *slot);
+void dealloc_slot_struct(struct slot *slot);
+struct slot *alloc_slot_struct(struct device_node *dn, int drc_index, char *drc_name, int power_domain);
+int rpaphp_register_slot(struct slot *slot);
+int rpaphp_deregister_slot(struct slot *slot);
 	
 #endif				/* _PPC64PHP_H */
diff --git a/drivers/pci/hotplug/shpchp.h b/drivers/pci/hotplug/shpchp.h
index b849f995..e260f20 100644
--- a/drivers/pci/hotplug/shpchp.h
+++ b/drivers/pci/hotplug/shpchp.h
@@ -168,19 +168,19 @@
 #define WRONG_BUS_FREQUENCY		0x0000000D
 #define POWER_FAILURE			0x0000000E
 
-extern int __must_check shpchp_create_ctrl_files(struct controller *ctrl);
-extern void shpchp_remove_ctrl_files(struct controller *ctrl);
-extern int shpchp_sysfs_enable_slot(struct slot *slot);
-extern int shpchp_sysfs_disable_slot(struct slot *slot);
-extern u8 shpchp_handle_attention_button(u8 hp_slot, struct controller *ctrl);
-extern u8 shpchp_handle_switch_change(u8 hp_slot, struct controller *ctrl);
-extern u8 shpchp_handle_presence_change(u8 hp_slot, struct controller *ctrl);
-extern u8 shpchp_handle_power_fault(u8 hp_slot, struct controller *ctrl);
-extern int shpchp_configure_device(struct slot *p_slot);
-extern int shpchp_unconfigure_device(struct slot *p_slot);
-extern void cleanup_slots(struct controller *ctrl);
-extern void shpchp_queue_pushbutton_work(struct work_struct *work);
-extern int shpc_init( struct controller *ctrl, struct pci_dev *pdev);
+int __must_check shpchp_create_ctrl_files(struct controller *ctrl);
+void shpchp_remove_ctrl_files(struct controller *ctrl);
+int shpchp_sysfs_enable_slot(struct slot *slot);
+int shpchp_sysfs_disable_slot(struct slot *slot);
+u8 shpchp_handle_attention_button(u8 hp_slot, struct controller *ctrl);
+u8 shpchp_handle_switch_change(u8 hp_slot, struct controller *ctrl);
+u8 shpchp_handle_presence_change(u8 hp_slot, struct controller *ctrl);
+u8 shpchp_handle_power_fault(u8 hp_slot, struct controller *ctrl);
+int shpchp_configure_device(struct slot *p_slot);
+int shpchp_unconfigure_device(struct slot *p_slot);
+void cleanup_slots(struct controller *ctrl);
+void shpchp_queue_pushbutton_work(struct work_struct *work);
+int shpc_init( struct controller *ctrl, struct pci_dev *pdev);
 
 static inline const char *slot_name(struct slot *slot)
 {
diff --git a/drivers/pci/hotplug/shpchp_sysfs.c b/drivers/pci/hotplug/shpchp_sysfs.c
index eeb23ce..e8c31fe 100644
--- a/drivers/pci/hotplug/shpchp_sysfs.c
+++ b/drivers/pci/hotplug/shpchp_sysfs.c
@@ -85,7 +85,7 @@
 }
 static DEVICE_ATTR (ctrl, S_IRUGO, show_ctrl, NULL);
 
-int __must_check shpchp_create_ctrl_files (struct controller *ctrl)
+int shpchp_create_ctrl_files (struct controller *ctrl)
 {
 	return device_create_file (&ctrl->pci_dev->dev, &dev_attr_ctrl);
 }
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 00cc78c7..bbff7d5 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -484,12 +484,12 @@
 	__ATTR(mode, S_IRUGO, show_msi_mode, NULL);
 
 
-struct attribute *msi_irq_default_attrs[] = {
+static struct attribute *msi_irq_default_attrs[] = {
 	&mode_attribute.attr,
 	NULL
 };
 
-void msi_kobj_release(struct kobject *kobj)
+static void msi_kobj_release(struct kobject *kobj)
 {
 	struct msi_desc *entry = to_msi_desc(kobj);
 
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
index dee5ddd..d927933 100644
--- a/drivers/pci/pci-acpi.c
+++ b/drivers/pci/pci-acpi.c
@@ -287,6 +287,32 @@
 	.run_wake = acpi_pci_run_wake,
 };
 
+void acpi_pci_add_bus(struct pci_bus *bus)
+{
+	acpi_handle handle = NULL;
+
+	if (bus->bridge)
+		handle = ACPI_HANDLE(bus->bridge);
+	if (acpi_pci_disabled || handle == NULL)
+		return;
+
+	acpi_pci_slot_enumerate(bus, handle);
+	acpiphp_enumerate_slots(bus, handle);
+}
+
+void acpi_pci_remove_bus(struct pci_bus *bus)
+{
+	/*
+	 * bus->bridge->acpi_node.handle has already been reset to NULL
+	 * when acpi_pci_remove_bus() is called, so don't check ACPI handle.
+	 */
+	if (acpi_pci_disabled)
+		return;
+
+	acpiphp_remove_slots(bus);
+	acpi_pci_slot_remove(bus);
+}
+
 /* ACPI bus type */
 static int acpi_pci_find_device(struct device *dev, acpi_handle *handle)
 {
@@ -361,7 +387,11 @@
 	ret = register_acpi_bus_type(&acpi_pci_bus);
 	if (ret)
 		return 0;
+
 	pci_set_platform_pm(&acpi_pci_platform_pm);
+	acpi_pci_slot_init();
+	acpiphp_init();
+
 	return 0;
 }
 arch_initcall(acpi_pci_init);
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 9c6e9bb..5b4a9d9 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -897,7 +897,7 @@
 
 	if (pci_resource_len(pdev, resno) == 0)
 		return 0;
-	nr = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
+	nr = vma_pages(vma);
 	start = vma->vm_pgoff;
 	size = ((pci_resource_len(pdev, resno) - 1) >> PAGE_SHIFT) + 1;
 	pci_start = (mmap_api == PCI_MMAP_PROCFS) ?
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index a5e0e5f..a899d8b 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -2614,7 +2614,7 @@
 			pci_release_region(pdev, i);
 }
 
-int __pci_request_selected_regions(struct pci_dev *pdev, int bars,
+static int __pci_request_selected_regions(struct pci_dev *pdev, int bars,
 				 const char *res_name, int excl)
 {
 	int i;
@@ -3694,7 +3694,7 @@
  * RETURNS: Resource alignment if it is specified.
  *          Zero if it is not specified.
  */
-resource_size_t pci_specified_resource_alignment(struct pci_dev *dev)
+static resource_size_t pci_specified_resource_alignment(struct pci_dev *dev)
 {
 	int seg, bus, slot, func, align_order, count;
 	resource_size_t align = 0;
@@ -3807,7 +3807,7 @@
 	}
 }
 
-ssize_t pci_set_resource_alignment_param(const char *buf, size_t count)
+static ssize_t pci_set_resource_alignment_param(const char *buf, size_t count)
 {
 	if (count > RESOURCE_ALIGNMENT_PARAM_SIZE - 1)
 		count = RESOURCE_ALIGNMENT_PARAM_SIZE - 1;
@@ -3818,7 +3818,7 @@
 	return count;
 }
 
-ssize_t pci_get_resource_alignment_param(char *buf, size_t size)
+static ssize_t pci_get_resource_alignment_param(char *buf, size_t size)
 {
 	size_t count;
 	spin_lock(&resource_alignment_lock);
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 7346ee6..68678ed 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -8,26 +8,25 @@
 
 /* Functions internal to the PCI core code */
 
-extern int pci_create_sysfs_dev_files(struct pci_dev *pdev);
-extern void pci_remove_sysfs_dev_files(struct pci_dev *pdev);
+int pci_create_sysfs_dev_files(struct pci_dev *pdev);
+void pci_remove_sysfs_dev_files(struct pci_dev *pdev);
 #if !defined(CONFIG_DMI) && !defined(CONFIG_ACPI)
 static inline void pci_create_firmware_label_files(struct pci_dev *pdev)
 { return; }
 static inline void pci_remove_firmware_label_files(struct pci_dev *pdev)
 { return; }
 #else
-extern void pci_create_firmware_label_files(struct pci_dev *pdev);
-extern void pci_remove_firmware_label_files(struct pci_dev *pdev);
+void pci_create_firmware_label_files(struct pci_dev *pdev);
+void pci_remove_firmware_label_files(struct pci_dev *pdev);
 #endif
-extern void pci_cleanup_rom(struct pci_dev *dev);
+void pci_cleanup_rom(struct pci_dev *dev);
 #ifdef HAVE_PCI_MMAP
 enum pci_mmap_api {
 	PCI_MMAP_SYSFS,	/* mmap on /sys/bus/pci/devices/<BDF>/resource<N> */
 	PCI_MMAP_PROCFS	/* mmap on /proc/bus/pci/<BDF> */
 };
-extern int pci_mmap_fits(struct pci_dev *pdev, int resno,
-			 struct vm_area_struct *vmai,
-			 enum pci_mmap_api mmap_api);
+int pci_mmap_fits(struct pci_dev *pdev, int resno, struct vm_area_struct *vmai,
+		  enum pci_mmap_api mmap_api);
 #endif
 int pci_probe_reset_function(struct pci_dev *dev);
 
@@ -60,17 +59,17 @@
 	int (*run_wake)(struct pci_dev *dev, bool enable);
 };
 
-extern int pci_set_platform_pm(struct pci_platform_pm_ops *ops);
-extern void pci_update_current_state(struct pci_dev *dev, pci_power_t state);
-extern void pci_power_up(struct pci_dev *dev);
-extern void pci_disable_enabled_device(struct pci_dev *dev);
-extern int pci_finish_runtime_suspend(struct pci_dev *dev);
-extern int __pci_pme_wakeup(struct pci_dev *dev, void *ign);
-extern void pci_wakeup_bus(struct pci_bus *bus);
-extern void pci_config_pm_runtime_get(struct pci_dev *dev);
-extern void pci_config_pm_runtime_put(struct pci_dev *dev);
-extern void pci_pm_init(struct pci_dev *dev);
-extern void pci_allocate_cap_save_buffers(struct pci_dev *dev);
+int pci_set_platform_pm(struct pci_platform_pm_ops *ops);
+void pci_update_current_state(struct pci_dev *dev, pci_power_t state);
+void pci_power_up(struct pci_dev *dev);
+void pci_disable_enabled_device(struct pci_dev *dev);
+int pci_finish_runtime_suspend(struct pci_dev *dev);
+int __pci_pme_wakeup(struct pci_dev *dev, void *ign);
+void pci_wakeup_bus(struct pci_bus *bus);
+void pci_config_pm_runtime_get(struct pci_dev *dev);
+void pci_config_pm_runtime_put(struct pci_dev *dev);
+void pci_pm_init(struct pci_dev *dev);
+void pci_allocate_cap_save_buffers(struct pci_dev *dev);
 void pci_free_cap_save_buffers(struct pci_dev *dev);
 
 static inline void pci_wakeup_event(struct pci_dev *dev)
@@ -96,7 +95,7 @@
 	struct bin_attribute *attr; /* descriptor for sysfs VPD entry */
 };
 
-extern int pci_vpd_pci22_init(struct pci_dev *dev);
+int pci_vpd_pci22_init(struct pci_dev *dev);
 static inline void pci_vpd_release(struct pci_dev *dev)
 {
 	if (dev->vpd)
@@ -105,9 +104,9 @@
 
 /* PCI /proc functions */
 #ifdef CONFIG_PROC_FS
-extern int pci_proc_attach_device(struct pci_dev *dev);
-extern int pci_proc_detach_device(struct pci_dev *dev);
-extern int pci_proc_detach_bus(struct pci_bus *bus);
+int pci_proc_attach_device(struct pci_dev *dev);
+int pci_proc_detach_device(struct pci_dev *dev);
+int pci_proc_detach_bus(struct pci_bus *bus);
 #else
 static inline int pci_proc_attach_device(struct pci_dev *dev) { return 0; }
 static inline int pci_proc_detach_device(struct pci_dev *dev) { return 0; }
@@ -118,8 +117,8 @@
 int pci_hp_add_bridge(struct pci_dev *dev);
 
 #ifdef HAVE_PCI_LEGACY
-extern void pci_create_legacy_files(struct pci_bus *bus);
-extern void pci_remove_legacy_files(struct pci_bus *bus);
+void pci_create_legacy_files(struct pci_bus *bus);
+void pci_remove_legacy_files(struct pci_bus *bus);
 #else
 static inline void pci_create_legacy_files(struct pci_bus *bus) { return; }
 static inline void pci_remove_legacy_files(struct pci_bus *bus) { return; }
@@ -134,7 +133,7 @@
 
 #ifdef CONFIG_PCI_MSI
 void pci_no_msi(void);
-extern void pci_msi_init_pci_dev(struct pci_dev *dev);
+void pci_msi_init_pci_dev(struct pci_dev *dev);
 #else
 static inline void pci_no_msi(void) { }
 static inline void pci_msi_init_pci_dev(struct pci_dev *dev) { }
@@ -198,12 +197,11 @@
 
 bool pci_bus_read_dev_vendor_id(struct pci_bus *bus, int devfn, u32 *pl,
 				int crs_timeout);
-extern int pci_setup_device(struct pci_dev *dev);
-extern int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
-				struct resource *res, unsigned int reg);
-extern int pci_resource_bar(struct pci_dev *dev, int resno,
-			    enum pci_bar_type *type);
-extern void pci_configure_ari(struct pci_dev *dev);
+int pci_setup_device(struct pci_dev *dev);
+int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
+		    struct resource *res, unsigned int reg);
+int pci_resource_bar(struct pci_dev *dev, int resno, enum pci_bar_type *type);
+void pci_configure_ari(struct pci_dev *dev);
 
 /**
  * pci_ari_enabled - query ARI forwarding status
@@ -217,7 +215,7 @@
 }
 
 void pci_reassigndev_resource_alignment(struct pci_dev *dev);
-extern void pci_disable_bridge_window(struct pci_dev *dev);
+void pci_disable_bridge_window(struct pci_dev *dev);
 
 /* Single Root I/O Virtualization */
 struct pci_sriov {
@@ -241,7 +239,7 @@
 };
 
 #ifdef CONFIG_PCI_ATS
-extern void pci_restore_ats_state(struct pci_dev *dev);
+void pci_restore_ats_state(struct pci_dev *dev);
 #else
 static inline void pci_restore_ats_state(struct pci_dev *dev)
 {
@@ -249,14 +247,13 @@
 #endif /* CONFIG_PCI_ATS */
 
 #ifdef CONFIG_PCI_IOV
-extern int pci_iov_init(struct pci_dev *dev);
-extern void pci_iov_release(struct pci_dev *dev);
-extern int pci_iov_resource_bar(struct pci_dev *dev, int resno,
-				enum pci_bar_type *type);
-extern resource_size_t pci_sriov_resource_alignment(struct pci_dev *dev,
-						    int resno);
-extern void pci_restore_iov_state(struct pci_dev *dev);
-extern int pci_iov_bus_range(struct pci_bus *bus);
+int pci_iov_init(struct pci_dev *dev);
+void pci_iov_release(struct pci_dev *dev);
+int pci_iov_resource_bar(struct pci_dev *dev, int resno,
+			 enum pci_bar_type *type);
+resource_size_t pci_sriov_resource_alignment(struct pci_dev *dev, int resno);
+void pci_restore_iov_state(struct pci_dev *dev);
+int pci_iov_bus_range(struct pci_bus *bus);
 
 #else
 static inline int pci_iov_init(struct pci_dev *dev)
@@ -282,10 +279,10 @@
 
 #endif /* CONFIG_PCI_IOV */
 
-extern unsigned long pci_cardbus_resource_alignment(struct resource *);
+unsigned long pci_cardbus_resource_alignment(struct resource *);
 
 static inline resource_size_t pci_resource_alignment(struct pci_dev *dev,
-					 struct resource *res)
+						     struct resource *res)
 {
 #ifdef CONFIG_PCI_IOV
 	int resno = res - dev->resource;
@@ -298,7 +295,7 @@
 	return resource_alignment(res);
 }
 
-extern void pci_enable_acs(struct pci_dev *dev);
+void pci_enable_acs(struct pci_dev *dev);
 
 struct pci_dev_reset_methods {
 	u16 vendor;
@@ -307,7 +304,7 @@
 };
 
 #ifdef CONFIG_PCI_QUIRKS
-extern int pci_dev_specific_reset(struct pci_dev *dev, int probe);
+int pci_dev_specific_reset(struct pci_dev *dev, int probe);
 #else
 static inline int pci_dev_specific_reset(struct pci_dev *dev, int probe)
 {
diff --git a/drivers/pci/pcie/Kconfig b/drivers/pci/pcie/Kconfig
index fde4a32..569f82f 100644
--- a/drivers/pci/pcie/Kconfig
+++ b/drivers/pci/pcie/Kconfig
@@ -82,4 +82,4 @@
 
 config PCIE_PME
 	def_bool y
-	depends on PCIEPORTBUS && PM_RUNTIME && ACPI
+	depends on PCIEPORTBUS && PM_RUNTIME
diff --git a/drivers/pci/pcie/aer/aer_inject.c b/drivers/pci/pcie/aer/aer_inject.c
index 4e24cb8..587e7e8 100644
--- a/drivers/pci/pcie/aer/aer_inject.c
+++ b/drivers/pci/pcie/aer/aer_inject.c
@@ -212,8 +212,8 @@
 	return ops->read(bus, devfn, where, size, val);
 }
 
-int pci_write_aer(struct pci_bus *bus, unsigned int devfn, int where, int size,
-		  u32 val)
+static int pci_write_aer(struct pci_bus *bus, unsigned int devfn, int where,
+			 int size, u32 val)
 {
 	u32 *sim;
 	struct aer_error *err;
@@ -334,13 +334,13 @@
 		return -ENODEV;
 	rpdev = pcie_find_root_port(dev);
 	if (!rpdev) {
-		ret = -ENOTTY;
+		ret = -ENODEV;
 		goto out_put;
 	}
 
 	pos_cap_err = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
 	if (!pos_cap_err) {
-		ret = -ENOTTY;
+		ret = -EPERM;
 		goto out_put;
 	}
 	pci_read_config_dword(dev, pos_cap_err + PCI_ERR_UNCOR_SEVER, &sever);
@@ -350,7 +350,7 @@
 
 	rp_pos_cap_err = pci_find_ext_capability(rpdev, PCI_EXT_CAP_ID_ERR);
 	if (!rp_pos_cap_err) {
-		ret = -ENOTTY;
+		ret = -EPERM;
 		goto out_put;
 	}
 
diff --git a/drivers/pci/pcie/aer/aerdrv.h b/drivers/pci/pcie/aer/aerdrv.h
index 22f840f..d12c77c 100644
--- a/drivers/pci/pcie/aer/aerdrv.h
+++ b/drivers/pci/pcie/aer/aerdrv.h
@@ -110,15 +110,15 @@
 }
 
 extern struct bus_type pcie_port_bus_type;
-extern void aer_do_secondary_bus_reset(struct pci_dev *dev);
-extern int aer_init(struct pcie_device *dev);
-extern void aer_isr(struct work_struct *work);
-extern void aer_print_error(struct pci_dev *dev, struct aer_err_info *info);
-extern void aer_print_port_info(struct pci_dev *dev, struct aer_err_info *info);
-extern irqreturn_t aer_irq(int irq, void *context);
+void aer_do_secondary_bus_reset(struct pci_dev *dev);
+int aer_init(struct pcie_device *dev);
+void aer_isr(struct work_struct *work);
+void aer_print_error(struct pci_dev *dev, struct aer_err_info *info);
+void aer_print_port_info(struct pci_dev *dev, struct aer_err_info *info);
+irqreturn_t aer_irq(int irq, void *context);
 
 #ifdef CONFIG_ACPI_APEI
-extern int pcie_aer_get_firmware_first(struct pci_dev *pci_dev);
+int pcie_aer_get_firmware_first(struct pci_dev *pci_dev);
 #else
 static inline int pcie_aer_get_firmware_first(struct pci_dev *pci_dev)
 {
diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c
index 564d97f..8ec8b4f 100644
--- a/drivers/pci/pcie/aer/aerdrv_core.c
+++ b/drivers/pci/pcie/aer/aerdrv_core.c
@@ -89,8 +89,6 @@
 	return -ENOSPC;
 }
 
-#define	PCI_BUS(x)	(((x) >> 8) & 0xff)
-
 /**
  * is_error_source - check whether the device is source of reported error
  * @dev: pointer to pci_dev to be checked
@@ -106,7 +104,7 @@
 	 * When bus id is equal to 0, it might be a bad id
 	 * reported by root port.
 	 */
-	if (!nosourceid && (PCI_BUS(e_info->id) != 0)) {
+	if (!nosourceid && (PCI_BUS_NUM(e_info->id) != 0)) {
 		/* Device ID match? */
 		if (e_info->id == ((dev->bus->number << 8) | dev->devfn))
 			return true;
diff --git a/drivers/pci/pcie/pme.c b/drivers/pci/pcie/pme.c
index 9ca0dc9..795db1f 100644
--- a/drivers/pci/pcie/pme.c
+++ b/drivers/pci/pcie/pme.c
@@ -19,8 +19,6 @@
 #include <linux/interrupt.h>
 #include <linux/device.h>
 #include <linux/pcieport_if.h>
-#include <linux/acpi.h>
-#include <linux/pci-acpi.h>
 #include <linux/pm_runtime.h>
 
 #include "../pci.h"
diff --git a/drivers/pci/pcie/portdrv.h b/drivers/pci/pcie/portdrv.h
index eea2ca2..d2eb80a 100644
--- a/drivers/pci/pcie/portdrv.h
+++ b/drivers/pci/pcie/portdrv.h
@@ -21,18 +21,18 @@
 #define get_descriptor_id(type, service) (((type - 4) << 4) | service)
 
 extern struct bus_type pcie_port_bus_type;
-extern int pcie_port_device_register(struct pci_dev *dev);
+int pcie_port_device_register(struct pci_dev *dev);
 #ifdef CONFIG_PM
-extern int pcie_port_device_suspend(struct device *dev);
-extern int pcie_port_device_resume(struct device *dev);
+int pcie_port_device_suspend(struct device *dev);
+int pcie_port_device_resume(struct device *dev);
 #endif
-extern void pcie_port_device_remove(struct pci_dev *dev);
-extern int __must_check pcie_port_bus_register(void);
-extern void pcie_port_bus_unregister(void);
+void pcie_port_device_remove(struct pci_dev *dev);
+int __must_check pcie_port_bus_register(void);
+void pcie_port_bus_unregister(void);
 
 struct pci_dev;
 
-extern void pcie_clear_root_pme_status(struct pci_dev *dev);
+void pcie_clear_root_pme_status(struct pci_dev *dev);
 
 #ifdef CONFIG_HOTPLUG_PCI_PCIE
 extern bool pciehp_msi_disabled;
@@ -59,7 +59,7 @@
 	return pcie_pme_msi_disabled;
 }
 
-extern void pcie_pme_interrupt_enable(struct pci_dev *dev, bool enable);
+void pcie_pme_interrupt_enable(struct pci_dev *dev, bool enable);
 #else /* !CONFIG_PCIE_PME */
 static inline void pcie_pme_disable_msi(void) {}
 static inline bool pcie_pme_no_msi(void) { return false; }
@@ -67,7 +67,7 @@
 #endif /* !CONFIG_PCIE_PME */
 
 #ifdef CONFIG_ACPI
-extern int pcie_port_acpi_setup(struct pci_dev *port, int *mask);
+int pcie_port_acpi_setup(struct pci_dev *port, int *mask);
 
 static inline int pcie_port_platform_notify(struct pci_dev *port, int *mask)
 {
diff --git a/drivers/pci/pcie/portdrv_acpi.c b/drivers/pci/pcie/portdrv_acpi.c
index a86b56e..b4d2894 100644
--- a/drivers/pci/pcie/portdrv_acpi.c
+++ b/drivers/pci/pcie/portdrv_acpi.c
@@ -17,6 +17,7 @@
 
 #include "aer/aerdrv.h"
 #include "../pci.h"
+#include "portdrv.h"
 
 /**
  * pcie_port_acpi_setup - Request the BIOS to release control of PCIe services.
diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
index 08c243a..0efba05 100644
--- a/drivers/pci/pcie/portdrv_pci.c
+++ b/drivers/pci/pcie/portdrv_pci.c
@@ -272,11 +272,9 @@
 					enum pci_channel_state error)
 {
 	struct aer_broadcast_data data = {error, PCI_ERS_RESULT_CAN_RECOVER};
-	int ret;
 
-	/* can not fail */
-	ret = device_for_each_child(&dev->dev, &data, error_detected_iter);
-
+	/* get true return value from &data */
+	device_for_each_child(&dev->dev, &data, error_detected_iter);
 	return data.result;
 }
 
@@ -308,10 +306,9 @@
 static pci_ers_result_t pcie_portdrv_mmio_enabled(struct pci_dev *dev)
 {
 	pci_ers_result_t status = PCI_ERS_RESULT_RECOVERED;
-	int retval;
 
 	/* get true return value from &status */
-	retval = device_for_each_child(&dev->dev, &status, mmio_enabled_iter);
+	device_for_each_child(&dev->dev, &status, mmio_enabled_iter);
 	return status;
 }
 
@@ -343,7 +340,6 @@
 static pci_ers_result_t pcie_portdrv_slot_reset(struct pci_dev *dev)
 {
 	pci_ers_result_t status = PCI_ERS_RESULT_RECOVERED;
-	int retval;
 
 	/* If fatal, restore cfg space for possible link reset at upstream */
 	if (dev->error_state == pci_channel_io_frozen) {
@@ -354,8 +350,7 @@
 	}
 
 	/* get true return value from &status */
-	retval = device_for_each_child(&dev->dev, &status, slot_reset_iter);
-
+	device_for_each_child(&dev->dev, &status, slot_reset_iter);
 	return status;
 }
 
@@ -381,9 +376,7 @@
 
 static void pcie_portdrv_err_resume(struct pci_dev *dev)
 {
-	int retval;
-	/* nothing to do with error value, if it ever happens */
-	retval = device_for_each_child(&dev->dev, NULL, resume_iter);
+	device_for_each_child(&dev->dev, NULL, resume_iter);
 }
 
 /*
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index b494066..43ece5d 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -673,6 +673,8 @@
 	ret = device_register(&child->dev);
 	WARN_ON(ret < 0);
 
+	pcibios_add_bus(child);
+
 	/* Create legacy_io and legacy_mem files for this bus */
 	pci_create_legacy_files(child);
 
@@ -1627,8 +1629,7 @@
 	if (!bus->is_added) {
 		dev_dbg(&bus->dev, "fixups for bus\n");
 		pcibios_fixup_bus(bus);
-		if (pci_is_root_bus(bus))
-			bus->is_added = 1;
+		bus->is_added = 1;
 	}
 
 	for (pass=0; pass < 2; pass++)
@@ -1661,6 +1662,14 @@
 	return 0;
 }
 
+void __weak pcibios_add_bus(struct pci_bus *bus)
+{
+}
+
+void __weak pcibios_remove_bus(struct pci_bus *bus)
+{
+}
+
 struct pci_bus *pci_create_root_bus(struct device *parent, int bus,
 		struct pci_ops *ops, void *sysdata, struct list_head *resources)
 {
@@ -1715,6 +1724,8 @@
 	if (error)
 		goto class_dev_reg_err;
 
+	pcibios_add_bus(b);
+
 	/* Create legacy_io and legacy_mem files for this bus */
 	pci_create_legacy_files(b);
 
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 0369fb6..7d68aee 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -324,29 +324,30 @@
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_ISA, quirk_cs5536_vsa);
 
-static void quirk_io_region(struct pci_dev *dev, unsigned region,
-	unsigned size, int nr, const char *name)
+static void quirk_io_region(struct pci_dev *dev, int port,
+				unsigned size, int nr, const char *name)
 {
-	region &= ~(size-1);
-	if (region) {
-		struct pci_bus_region bus_region;
-		struct resource *res = dev->resource + nr;
+	u16 region;
+	struct pci_bus_region bus_region;
+	struct resource *res = dev->resource + nr;
 
-		res->name = pci_name(dev);
-		res->start = region;
-		res->end = region + size - 1;
-		res->flags = IORESOURCE_IO;
+	pci_read_config_word(dev, port, &region);
+	region &= ~(size - 1);
 
-		/* Convert from PCI bus to resource space.  */
-		bus_region.start = res->start;
-		bus_region.end = res->end;
-		pcibios_bus_to_resource(dev, res, &bus_region);
+	if (!region)
+		return;
 
-		if (pci_claim_resource(dev, nr) == 0)
-			dev_info(&dev->dev, "quirk: %pR claimed by %s\n",
-				 res, name);
-	}
-}	
+	res->name = pci_name(dev);
+	res->flags = IORESOURCE_IO;
+
+	/* Convert from PCI bus to resource space */
+	bus_region.start = region;
+	bus_region.end = region + size - 1;
+	pcibios_bus_to_resource(dev, res, &bus_region);
+
+	if (!pci_claim_resource(dev, nr))
+		dev_info(&dev->dev, "quirk: %pR claimed by %s\n", res, name);
+}
 
 /*
  *	ATI Northbridge setups MCE the processor if you even
@@ -374,12 +375,8 @@
  */
 static void quirk_ali7101_acpi(struct pci_dev *dev)
 {
-	u16 region;
-
-	pci_read_config_word(dev, 0xE0, &region);
-	quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "ali7101 ACPI");
-	pci_read_config_word(dev, 0xE2, &region);
-	quirk_io_region(dev, region, 32, PCI_BRIDGE_RESOURCES+1, "ali7101 SMB");
+	quirk_io_region(dev, 0xE0, 64, PCI_BRIDGE_RESOURCES, "ali7101 ACPI");
+	quirk_io_region(dev, 0xE2, 32, PCI_BRIDGE_RESOURCES+1, "ali7101 SMB");
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL,	PCI_DEVICE_ID_AL_M7101,		quirk_ali7101_acpi);
 
@@ -442,12 +439,10 @@
  */
 static void quirk_piix4_acpi(struct pci_dev *dev)
 {
-	u32 region, res_a;
+	u32 res_a;
 
-	pci_read_config_dword(dev, 0x40, &region);
-	quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "PIIX4 ACPI");
-	pci_read_config_dword(dev, 0x90, &region);
-	quirk_io_region(dev, region, 16, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB");
+	quirk_io_region(dev, 0x40, 64, PCI_BRIDGE_RESOURCES, "PIIX4 ACPI");
+	quirk_io_region(dev, 0x90, 16, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB");
 
 	/* Device resource A has enables for some of the other ones */
 	pci_read_config_dword(dev, 0x5c, &res_a);
@@ -491,7 +486,6 @@
  */
 static void quirk_ich4_lpc_acpi(struct pci_dev *dev)
 {
-	u32 region;
 	u8 enable;
 
 	/*
@@ -503,22 +497,14 @@
 	*/
 
 	pci_read_config_byte(dev, ICH_ACPI_CNTL, &enable);
-	if (enable & ICH4_ACPI_EN) {
-		pci_read_config_dword(dev, ICH_PMBASE, &region);
-		region &= PCI_BASE_ADDRESS_IO_MASK;
-		if (region >= PCIBIOS_MIN_IO)
-			quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES,
-					"ICH4 ACPI/GPIO/TCO");
-	}
+	if (enable & ICH4_ACPI_EN)
+		quirk_io_region(dev, ICH_PMBASE, 128, PCI_BRIDGE_RESOURCES,
+				 "ICH4 ACPI/GPIO/TCO");
 
 	pci_read_config_byte(dev, ICH4_GPIO_CNTL, &enable);
-	if (enable & ICH4_GPIO_EN) {
-		pci_read_config_dword(dev, ICH4_GPIOBASE, &region);
-		region &= PCI_BASE_ADDRESS_IO_MASK;
-		if (region >= PCIBIOS_MIN_IO)
-			quirk_io_region(dev, region, 64,
-					PCI_BRIDGE_RESOURCES + 1, "ICH4 GPIO");
-	}
+	if (enable & ICH4_GPIO_EN)
+		quirk_io_region(dev, ICH4_GPIOBASE, 64, PCI_BRIDGE_RESOURCES+1,
+				"ICH4 GPIO");
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,    PCI_DEVICE_ID_INTEL_82801AA_0,		quirk_ich4_lpc_acpi);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,    PCI_DEVICE_ID_INTEL_82801AB_0,		quirk_ich4_lpc_acpi);
@@ -533,26 +519,17 @@
 
 static void ich6_lpc_acpi_gpio(struct pci_dev *dev)
 {
-	u32 region;
 	u8 enable;
 
 	pci_read_config_byte(dev, ICH_ACPI_CNTL, &enable);
-	if (enable & ICH6_ACPI_EN) {
-		pci_read_config_dword(dev, ICH_PMBASE, &region);
-		region &= PCI_BASE_ADDRESS_IO_MASK;
-		if (region >= PCIBIOS_MIN_IO)
-			quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES,
-					"ICH6 ACPI/GPIO/TCO");
-	}
+	if (enable & ICH6_ACPI_EN)
+		quirk_io_region(dev, ICH_PMBASE, 128, PCI_BRIDGE_RESOURCES,
+				 "ICH6 ACPI/GPIO/TCO");
 
 	pci_read_config_byte(dev, ICH6_GPIO_CNTL, &enable);
-	if (enable & ICH6_GPIO_EN) {
-		pci_read_config_dword(dev, ICH6_GPIOBASE, &region);
-		region &= PCI_BASE_ADDRESS_IO_MASK;
-		if (region >= PCIBIOS_MIN_IO)
-			quirk_io_region(dev, region, 64,
-					PCI_BRIDGE_RESOURCES + 1, "ICH6 GPIO");
-	}
+	if (enable & ICH6_GPIO_EN)
+		quirk_io_region(dev, ICH6_GPIOBASE, 64, PCI_BRIDGE_RESOURCES+1,
+				"ICH6 GPIO");
 }
 
 static void ich6_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name, int dynsize)
@@ -650,13 +627,9 @@
  */
 static void quirk_vt82c586_acpi(struct pci_dev *dev)
 {
-	u32 region;
-
-	if (dev->revision & 0x10) {
-		pci_read_config_dword(dev, 0x48, &region);
-		region &= PCI_BASE_ADDRESS_IO_MASK;
-		quirk_io_region(dev, region, 256, PCI_BRIDGE_RESOURCES, "vt82c586 ACPI");
-	}
+	if (dev->revision & 0x10)
+		quirk_io_region(dev, 0x48, 256, PCI_BRIDGE_RESOURCES,
+				"vt82c586 ACPI");
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_82C586_3,	quirk_vt82c586_acpi);
 
@@ -668,18 +641,12 @@
  */
 static void quirk_vt82c686_acpi(struct pci_dev *dev)
 {
-	u16 hm;
-	u32 smb;
-
 	quirk_vt82c586_acpi(dev);
 
-	pci_read_config_word(dev, 0x70, &hm);
-	hm &= PCI_BASE_ADDRESS_IO_MASK;
-	quirk_io_region(dev, hm, 128, PCI_BRIDGE_RESOURCES + 1, "vt82c686 HW-mon");
+	quirk_io_region(dev, 0x70, 128, PCI_BRIDGE_RESOURCES+1,
+				 "vt82c686 HW-mon");
 
-	pci_read_config_dword(dev, 0x90, &smb);
-	smb &= PCI_BASE_ADDRESS_IO_MASK;
-	quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 2, "vt82c686 SMB");
+	quirk_io_region(dev, 0x90, 16, PCI_BRIDGE_RESOURCES+2, "vt82c686 SMB");
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_82C686_4,	quirk_vt82c686_acpi);
 
@@ -690,15 +657,8 @@
  */
 static void quirk_vt8235_acpi(struct pci_dev *dev)
 {
-	u16 pm, smb;
-
-	pci_read_config_word(dev, 0x88, &pm);
-	pm &= PCI_BASE_ADDRESS_IO_MASK;
-	quirk_io_region(dev, pm, 128, PCI_BRIDGE_RESOURCES, "vt8235 PM");
-
-	pci_read_config_word(dev, 0xd0, &smb);
-	smb &= PCI_BASE_ADDRESS_IO_MASK;
-	quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 1, "vt8235 SMB");
+	quirk_io_region(dev, 0x88, 128, PCI_BRIDGE_RESOURCES, "vt8235 PM");
+	quirk_io_region(dev, 0xd0, 16, PCI_BRIDGE_RESOURCES+1, "vt8235 SMB");
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_8235,	quirk_vt8235_acpi);
 
@@ -2594,6 +2554,14 @@
 		dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
 	pci_dev_put(p);
 }
+static void quirk_msi_intx_disable_qca_bug(struct pci_dev *dev)
+{
+	/* AR816X/AR817X/E210X MSI is fixed at HW level from revision 0x18 */
+	if (dev->revision < 0x18) {
+		dev_info(&dev->dev, "set MSI_INTX_DISABLE_BUG flag\n");
+		dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
+	}
+}
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
 			PCI_DEVICE_ID_TIGON3_5780,
 			quirk_msi_intx_disable_bug);
@@ -2643,6 +2611,16 @@
 			quirk_msi_intx_disable_bug);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1083,
 			quirk_msi_intx_disable_bug);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1090,
+			quirk_msi_intx_disable_qca_bug);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1091,
+			quirk_msi_intx_disable_qca_bug);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x10a0,
+			quirk_msi_intx_disable_qca_bug);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x10a1,
+			quirk_msi_intx_disable_qca_bug);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0xe091,
+			quirk_msi_intx_disable_qca_bug);
 #endif /* CONFIG_PCI_MSI */
 
 /* Allow manual resource allocation for PCI hotplug bridges
diff --git a/drivers/pci/remove.c b/drivers/pci/remove.c
index cc875e6..8fc54b7 100644
--- a/drivers/pci/remove.c
+++ b/drivers/pci/remove.c
@@ -50,10 +50,8 @@
 	list_del(&bus->node);
 	pci_bus_release_busn_res(bus);
 	up_write(&pci_bus_sem);
-	if (!bus->is_added)
-		return;
-
 	pci_remove_legacy_files(bus);
+	pcibios_remove_bus(bus);
 	device_unregister(&bus->dev);
 }
 EXPORT_SYMBOL(pci_remove_bus);
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 7e8739e..16abaaa 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -1044,7 +1044,7 @@
 	;
 }
 
-void __ref __pci_bus_size_bridges(struct pci_bus *bus,
+static void __ref __pci_bus_size_bridges(struct pci_bus *bus,
 			struct list_head *realloc_head)
 {
 	struct pci_dev *dev;
@@ -1545,6 +1545,8 @@
 
 enable_all:
 	retval = pci_reenable_device(bridge);
+	if (retval)
+		dev_err(&bridge->dev, "Error reenabling bridge (%d)\n", retval);
 	pci_set_master(bridge);
 	pci_enable_bridges(parent);
 }
diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c
index 81b88bd..07f2edd 100644
--- a/drivers/pci/setup-res.c
+++ b/drivers/pci/setup-res.c
@@ -261,7 +261,6 @@
 {
 	struct resource *res = dev->resource + resno;
 	resource_size_t align, size;
-	struct pci_bus *bus;
 	int ret;
 
 	align = pci_resource_alignment(dev, res);
@@ -271,7 +270,6 @@
 		return -EINVAL;
 	}
 
-	bus = dev->bus;
 	size = resource_size(res);
 	ret = _pci_assign_resource(dev, resno, size, align);
 
diff --git a/drivers/pci/slot.c b/drivers/pci/slot.c
index ac6412f..c1e9284 100644
--- a/drivers/pci/slot.c
+++ b/drivers/pci/slot.c
@@ -377,14 +377,17 @@
 {
 	struct hotplug_slot *slot = pci_slot->hotplug;
 	struct kobject *kobj = NULL;
-	int no_warn;
+	int ret;
 
 	if (!slot || !slot->ops)
 		return;
 	kobj = kset_find_obj(module_kset, slot->ops->mod_name);
 	if (!kobj)
 		return;
-	no_warn = sysfs_create_link(&pci_slot->kobj, kobj, "module");
+	ret = sysfs_create_link(&pci_slot->kobj, kobj, "module");
+	if (ret)
+		dev_err(&pci_slot->bus->dev, "Error creating sysfs link (%d)\n",
+			ret);
 	kobject_put(kobj);
 }
 EXPORT_SYMBOL_GPL(pci_hp_create_module_link);
diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c
index ce90d05..7455092 100644
--- a/drivers/scsi/mvsas/mv_init.c
+++ b/drivers/scsi/mvsas/mv_init.c
@@ -703,7 +703,7 @@
 	{ PCI_VDEVICE(TTI, 0x2744), chip_9480 },
 	{ PCI_VDEVICE(TTI, 0x2760), chip_9480 },
 	{
-		.vendor		= 0x1b4b,
+		.vendor		= PCI_VENDOR_ID_MARVELL_EXT,
 		.device		= 0x9480,
 		.subvendor	= PCI_ANY_ID,
 		.subdevice	= 0x9480,
@@ -712,7 +712,7 @@
 		.driver_data	= chip_9480,
 	},
 	{
-		.vendor		= 0x1b4b,
+		.vendor		= PCI_VENDOR_ID_MARVELL_EXT,
 		.device		= 0x9445,
 		.subvendor	= PCI_ANY_ID,
 		.subdevice	= 0x9480,
@@ -721,7 +721,7 @@
 		.driver_data	= chip_9445,
 	},
 	{
-		.vendor		= 0x1b4b,
+		.vendor		= PCI_VENDOR_ID_MARVELL_EXT,
 		.device		= 0x9485,
 		.subvendor	= PCI_ANY_ID,
 		.subdevice	= 0x9480,
diff --git a/drivers/scsi/mvumi.c b/drivers/scsi/mvumi.c
index 4594cca..c3601b5 100644
--- a/drivers/scsi/mvumi.c
+++ b/drivers/scsi/mvumi.c
@@ -49,8 +49,8 @@
 MODULE_DESCRIPTION("Marvell UMI Driver");
 
 static DEFINE_PCI_DEVICE_TABLE(mvumi_pci_table) = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_2, PCI_DEVICE_ID_MARVELL_MV9143) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_2, PCI_DEVICE_ID_MARVELL_MV9580) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, PCI_DEVICE_ID_MARVELL_MV9143) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, PCI_DEVICE_ID_MARVELL_MV9580) },
 	{ 0 }
 };
 
diff --git a/drivers/scsi/mvumi.h b/drivers/scsi/mvumi.h
index e360135..41f1687 100644
--- a/drivers/scsi/mvumi.h
+++ b/drivers/scsi/mvumi.h
@@ -32,7 +32,6 @@
 #define VER_BUILD		1500
 
 #define MV_DRIVER_NAME			"mvumi"
-#define PCI_VENDOR_ID_MARVELL_2		0x1b4b
 #define PCI_DEVICE_ID_MARVELL_MV9143	0x9143
 #define PCI_DEVICE_ID_MARVELL_MV9580	0x9580
 
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index bcbdd74..03053ac 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -152,15 +152,6 @@
 
 void acpi_pci_irq_disable (struct pci_dev *dev);
 
-struct acpi_pci_driver {
-	struct list_head node;
-	int (*add)(struct acpi_pci_root *root);
-	void (*remove)(struct acpi_pci_root *root);
-};
-
-int acpi_pci_register_driver(struct acpi_pci_driver *driver);
-void acpi_pci_unregister_driver(struct acpi_pci_driver *driver);
-
 extern int ec_read(u8 addr, u8 *val);
 extern int ec_write(u8 addr, u8 val);
 extern int ec_transaction(u8 command,
diff --git a/include/linux/pci-acpi.h b/include/linux/pci-acpi.h
index 9a22b5e..81b3161 100644
--- a/include/linux/pci-acpi.h
+++ b/include/linux/pci-acpi.h
@@ -41,8 +41,37 @@
 
 	return DEVICE_ACPI_HANDLE(dev);
 }
+
+void acpi_pci_add_bus(struct pci_bus *bus);
+void acpi_pci_remove_bus(struct pci_bus *bus);
+
+#ifdef	CONFIG_ACPI_PCI_SLOT
+void acpi_pci_slot_init(void);
+void acpi_pci_slot_enumerate(struct pci_bus *bus, acpi_handle handle);
+void acpi_pci_slot_remove(struct pci_bus *bus);
+#else
+static inline void acpi_pci_slot_init(void) { }
+static inline void acpi_pci_slot_enumerate(struct pci_bus *bus,
+					   acpi_handle handle) { }
+static inline void acpi_pci_slot_remove(struct pci_bus *bus) { }
 #endif
 
+#ifdef	CONFIG_HOTPLUG_PCI_ACPI
+void acpiphp_init(void);
+void acpiphp_enumerate_slots(struct pci_bus *bus, acpi_handle handle);
+void acpiphp_remove_slots(struct pci_bus *bus);
+#else
+static inline void acpiphp_init(void) { }
+static inline void acpiphp_enumerate_slots(struct pci_bus *bus,
+					   acpi_handle handle) { }
+static inline void acpiphp_remove_slots(struct pci_bus *bus) { }
+#endif
+
+#else	/* CONFIG_ACPI */
+static inline void acpi_pci_add_bus(struct pci_bus *bus) { }
+static inline void acpi_pci_remove_bus(struct pci_bus *bus) { }
+#endif	/* CONFIG_ACPI */
+
 #ifdef CONFIG_ACPI_APEI
 extern bool aer_acpi_firmware_first(void);
 #else
diff --git a/include/linux/pci-aspm.h b/include/linux/pci-aspm.h
index c832014..8af4610 100644
--- a/include/linux/pci-aspm.h
+++ b/include/linux/pci-aspm.h
@@ -23,14 +23,14 @@
 #define PCIE_LINK_STATE_CLKPM	4
 
 #ifdef CONFIG_PCIEASPM
-extern void pcie_aspm_init_link_state(struct pci_dev *pdev);
-extern void pcie_aspm_exit_link_state(struct pci_dev *pdev);
-extern void pcie_aspm_pm_state_change(struct pci_dev *pdev);
-extern void pcie_aspm_powersave_config_link(struct pci_dev *pdev);
-extern void pci_disable_link_state(struct pci_dev *pdev, int state);
-extern void pci_disable_link_state_locked(struct pci_dev *pdev, int state);
-extern void pcie_clear_aspm(struct pci_bus *bus);
-extern void pcie_no_aspm(void);
+void pcie_aspm_init_link_state(struct pci_dev *pdev);
+void pcie_aspm_exit_link_state(struct pci_dev *pdev);
+void pcie_aspm_pm_state_change(struct pci_dev *pdev);
+void pcie_aspm_powersave_config_link(struct pci_dev *pdev);
+void pci_disable_link_state(struct pci_dev *pdev, int state);
+void pci_disable_link_state_locked(struct pci_dev *pdev, int state);
+void pcie_clear_aspm(struct pci_bus *bus);
+void pcie_no_aspm(void);
 #else
 static inline void pcie_aspm_init_link_state(struct pci_dev *pdev)
 {
@@ -56,8 +56,8 @@
 #endif
 
 #ifdef CONFIG_PCIEASPM_DEBUG /* this depends on CONFIG_PCIEASPM */
-extern void pcie_aspm_create_sysfs_dev_files(struct pci_dev *pdev);
-extern void pcie_aspm_remove_sysfs_dev_files(struct pci_dev *pdev);
+void pcie_aspm_create_sysfs_dev_files(struct pci_dev *pdev);
+void pcie_aspm_remove_sysfs_dev_files(struct pci_dev *pdev);
 #else
 static inline void pcie_aspm_create_sysfs_dev_files(struct pci_dev *pdev)
 {
diff --git a/include/linux/pci-ats.h b/include/linux/pci-ats.h
index 7ef6872..68bcefd 100644
--- a/include/linux/pci-ats.h
+++ b/include/linux/pci-ats.h
@@ -14,9 +14,9 @@
 
 #ifdef CONFIG_PCI_ATS
 
-extern int pci_enable_ats(struct pci_dev *dev, int ps);
-extern void pci_disable_ats(struct pci_dev *dev);
-extern int pci_ats_queue_depth(struct pci_dev *dev);
+int pci_enable_ats(struct pci_dev *dev, int ps);
+void pci_disable_ats(struct pci_dev *dev);
+int pci_ats_queue_depth(struct pci_dev *dev);
 
 /**
  * pci_ats_enabled - query the ATS status
@@ -54,12 +54,12 @@
 
 #ifdef CONFIG_PCI_PRI
 
-extern int  pci_enable_pri(struct pci_dev *pdev, u32 reqs);
-extern void pci_disable_pri(struct pci_dev *pdev);
-extern bool pci_pri_enabled(struct pci_dev *pdev);
-extern int  pci_reset_pri(struct pci_dev *pdev);
-extern bool pci_pri_stopped(struct pci_dev *pdev);
-extern int  pci_pri_status(struct pci_dev *pdev);
+int pci_enable_pri(struct pci_dev *pdev, u32 reqs);
+void pci_disable_pri(struct pci_dev *pdev);
+bool pci_pri_enabled(struct pci_dev *pdev);
+int pci_reset_pri(struct pci_dev *pdev);
+bool pci_pri_stopped(struct pci_dev *pdev);
+int pci_pri_status(struct pci_dev *pdev);
 
 #else /* CONFIG_PCI_PRI */
 
@@ -95,10 +95,10 @@
 
 #ifdef CONFIG_PCI_PASID
 
-extern int pci_enable_pasid(struct pci_dev *pdev, int features);
-extern void pci_disable_pasid(struct pci_dev *pdev);
-extern int pci_pasid_features(struct pci_dev *pdev);
-extern int pci_max_pasids(struct pci_dev *pdev);
+int pci_enable_pasid(struct pci_dev *pdev, int features);
+void pci_disable_pasid(struct pci_dev *pdev);
+int pci_pasid_features(struct pci_dev *pdev);
+int pci_max_pasids(struct pci_dev *pdev);
 
 #else  /* CONFIG_PCI_PASID */
 
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 2461033a..8aaca26 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -35,6 +35,21 @@
 /* Include the ID list */
 #include <linux/pci_ids.h>
 
+/*
+ * The PCI interface treats multi-function devices as independent
+ * devices.  The slot/function address of each device is encoded
+ * in a single byte as follows:
+ *
+ *	7:3 = slot
+ *	2:0 = function
+ * PCI_DEVFN(), PCI_SLOT(), and PCI_FUNC() are defined uapi/linux/pci.h
+ * In the interest of not exposing interfaces to user-space unnecessarily,
+ * the following kernel only defines are being added here.
+ */
+#define PCI_DEVID(bus, devfn)  ((((u16)bus) << 8) | devfn)
+/* return bus from PCI devid = ((u16)bus_number) << 8) | devfn */
+#define PCI_BUS_NUM(x) (((x) >> 8) & 0xff)
+
 /* pci_slot represents a physical slot */
 struct pci_slot {
 	struct pci_bus *bus;		/* The bus this slot is on */
@@ -348,7 +363,7 @@
 	return dev;
 }
 
-extern struct pci_dev *alloc_pci_dev(void);
+struct pci_dev *alloc_pci_dev(void);
 
 #define	to_pci_dev(n) container_of(n, struct pci_dev, dev)
 #define for_each_pci_dev(d) while ((d = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, d)) != NULL)
@@ -504,10 +519,10 @@
  * ACPI needs to be able to access PCI config space before we've done a
  * PCI bus scan and created pci_bus structures.
  */
-extern int raw_pci_read(unsigned int domain, unsigned int bus,
-			unsigned int devfn, int reg, int len, u32 *val);
-extern int raw_pci_write(unsigned int domain, unsigned int bus,
-			unsigned int devfn, int reg, int len, u32 val);
+int raw_pci_read(unsigned int domain, unsigned int bus, unsigned int devfn,
+		 int reg, int len, u32 *val);
+int raw_pci_write(unsigned int domain, unsigned int bus, unsigned int devfn,
+		  int reg, int len, u32 val);
 
 struct pci_bus_region {
 	resource_size_t start;
@@ -658,7 +673,7 @@
 /* these external functions are only available when PCI support is enabled */
 #ifdef CONFIG_PCI
 
-extern void pcie_bus_configure_settings(struct pci_bus *bus, u8 smpss);
+void pcie_bus_configure_settings(struct pci_bus *bus, u8 smpss);
 
 enum pcie_bus_config_types {
 	PCIE_BUS_TUNE_OFF,
@@ -675,9 +690,11 @@
  * code, or pci core code. */
 extern struct list_head pci_root_buses;	/* list of all known PCI buses */
 /* Some device drivers need know if pci is initiated */
-extern int no_pci_devices(void);
+int no_pci_devices(void);
 
 void pcibios_resource_survey_bus(struct pci_bus *bus);
+void pcibios_add_bus(struct pci_bus *bus);
+void pcibios_remove_bus(struct pci_bus *bus);
 void pcibios_fixup_bus(struct pci_bus *);
 int __must_check pcibios_enable_device(struct pci_dev *, int mask);
 /* Architecture specific versions may override this (weak) */
@@ -699,7 +716,7 @@
 void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
 			     struct pci_bus_region *region);
 void pcibios_scan_specific_bus(int busn);
-extern struct pci_bus *pci_find_bus(int domain, int busnr);
+struct pci_bus *pci_find_bus(int domain, int busnr);
 void pci_bus_add_devices(const struct pci_bus *bus);
 struct pci_bus *pci_scan_bus_parented(struct device *parent, int bus,
 				      struct pci_ops *ops, void *sysdata);
@@ -732,14 +749,14 @@
 u8 pci_swizzle_interrupt_pin(const struct pci_dev *dev, u8 pin);
 int pci_get_interrupt_pin(struct pci_dev *dev, struct pci_dev **bridge);
 u8 pci_common_swizzle(struct pci_dev *dev, u8 *pinp);
-extern struct pci_dev *pci_dev_get(struct pci_dev *dev);
-extern void pci_dev_put(struct pci_dev *dev);
-extern void pci_remove_bus(struct pci_bus *b);
-extern void pci_stop_and_remove_bus_device(struct pci_dev *dev);
+struct pci_dev *pci_dev_get(struct pci_dev *dev);
+void pci_dev_put(struct pci_dev *dev);
+void pci_remove_bus(struct pci_bus *b);
+void pci_stop_and_remove_bus_device(struct pci_dev *dev);
 void pci_stop_root_bus(struct pci_bus *bus);
 void pci_remove_root_bus(struct pci_bus *bus);
 void pci_setup_cardbus(struct pci_bus *bus);
-extern void pci_sort_breadthfirst(void);
+void pci_sort_breadthfirst(void);
 #define dev_is_pci(d) ((d)->bus == &pci_bus_type)
 #define dev_is_pf(d) ((dev_is_pci(d) ? to_pci_dev(d)->is_physfn : false))
 #define dev_num_vf(d) ((dev_is_pci(d) ? pci_num_vf(to_pci_dev(d)) : 0))
@@ -1141,18 +1158,17 @@
 	return 0;
 }
 #else
-extern int pci_enable_msi_block(struct pci_dev *dev, unsigned int nvec);
-extern int pci_enable_msi_block_auto(struct pci_dev *dev, unsigned int *maxvec);
-extern void pci_msi_shutdown(struct pci_dev *dev);
-extern void pci_disable_msi(struct pci_dev *dev);
-extern int pci_msix_table_size(struct pci_dev *dev);
-extern int pci_enable_msix(struct pci_dev *dev,
-	struct msix_entry *entries, int nvec);
-extern void pci_msix_shutdown(struct pci_dev *dev);
-extern void pci_disable_msix(struct pci_dev *dev);
-extern void msi_remove_pci_irq_vectors(struct pci_dev *dev);
-extern void pci_restore_msi_state(struct pci_dev *dev);
-extern int pci_msi_enabled(void);
+int pci_enable_msi_block(struct pci_dev *dev, unsigned int nvec);
+int pci_enable_msi_block_auto(struct pci_dev *dev, unsigned int *maxvec);
+void pci_msi_shutdown(struct pci_dev *dev);
+void pci_disable_msi(struct pci_dev *dev);
+int pci_msix_table_size(struct pci_dev *dev);
+int pci_enable_msix(struct pci_dev *dev, struct msix_entry *entries, int nvec);
+void pci_msix_shutdown(struct pci_dev *dev);
+void pci_disable_msix(struct pci_dev *dev);
+void msi_remove_pci_irq_vectors(struct pci_dev *dev);
+void pci_restore_msi_state(struct pci_dev *dev);
+int pci_msi_enabled(void);
 #endif
 
 #ifdef CONFIG_PCIEPORTBUS
@@ -1167,8 +1183,8 @@
 static inline int pcie_aspm_enabled(void) { return 0; }
 static inline bool pcie_aspm_support_enabled(void) { return false; }
 #else
-extern int pcie_aspm_enabled(void);
-extern bool pcie_aspm_support_enabled(void);
+int pcie_aspm_enabled(void);
+bool pcie_aspm_support_enabled(void);
 #endif
 
 #ifdef CONFIG_PCIEAER
@@ -1186,8 +1202,8 @@
 }
 static inline void pcie_ecrc_get_policy(char *str) {};
 #else
-extern void pcie_set_ecrc_checking(struct pci_dev *dev);
-extern void pcie_ecrc_get_policy(char *str);
+void pcie_set_ecrc_checking(struct pci_dev *dev);
+void pcie_ecrc_get_policy(char *str);
 #endif
 
 #define pci_enable_msi(pdev)	pci_enable_msi_block(pdev, 1)
@@ -1198,9 +1214,9 @@
 void ht_destroy_irq(unsigned int irq);
 #endif /* CONFIG_HT_IRQ */
 
-extern void pci_cfg_access_lock(struct pci_dev *dev);
-extern bool pci_cfg_access_trylock(struct pci_dev *dev);
-extern void pci_cfg_access_unlock(struct pci_dev *dev);
+void pci_cfg_access_lock(struct pci_dev *dev);
+bool pci_cfg_access_trylock(struct pci_dev *dev);
+void pci_cfg_access_unlock(struct pci_dev *dev);
 
 /*
  * PCI domain support.  Sometimes called PCI segment (eg by ACPI),
@@ -1225,7 +1241,7 @@
 /* some architectures require additional setup to direct VGA traffic */
 typedef int (*arch_set_vga_state_t)(struct pci_dev *pdev, bool decode,
 		      unsigned int command_bits, u32 flags);
-extern void pci_register_set_vga_state(arch_set_vga_state_t func);
+void pci_register_set_vga_state(arch_set_vga_state_t func);
 
 #else /* CONFIG_PCI is not enabled */
 
@@ -1627,8 +1643,8 @@
 int pcibios_add_device(struct pci_dev *dev);
 
 #ifdef CONFIG_PCI_MMCONFIG
-extern void __init pci_mmcfg_early_init(void);
-extern void __init pci_mmcfg_late_init(void);
+void __init pci_mmcfg_early_init(void);
+void __init pci_mmcfg_late_init(void);
 #else
 static inline void pci_mmcfg_early_init(void) { }
 static inline void pci_mmcfg_late_init(void) { }
@@ -1639,12 +1655,12 @@
 void __iomem *pci_ioremap_bar(struct pci_dev *pdev, int bar);
 
 #ifdef CONFIG_PCI_IOV
-extern int pci_enable_sriov(struct pci_dev *dev, int nr_virtfn);
-extern void pci_disable_sriov(struct pci_dev *dev);
-extern irqreturn_t pci_sriov_migration(struct pci_dev *dev);
-extern int pci_num_vf(struct pci_dev *dev);
-extern int pci_sriov_set_totalvfs(struct pci_dev *dev, u16 numvfs);
-extern int pci_sriov_get_totalvfs(struct pci_dev *dev);
+int pci_enable_sriov(struct pci_dev *dev, int nr_virtfn);
+void pci_disable_sriov(struct pci_dev *dev);
+irqreturn_t pci_sriov_migration(struct pci_dev *dev);
+int pci_num_vf(struct pci_dev *dev);
+int pci_sriov_set_totalvfs(struct pci_dev *dev, u16 numvfs);
+int pci_sriov_get_totalvfs(struct pci_dev *dev);
 #else
 static inline int pci_enable_sriov(struct pci_dev *dev, int nr_virtfn)
 {
@@ -1672,8 +1688,8 @@
 #endif
 
 #if defined(CONFIG_HOTPLUG_PCI) || defined(CONFIG_HOTPLUG_PCI_MODULE)
-extern void pci_hp_create_module_link(struct pci_slot *pci_slot);
-extern void pci_hp_remove_module_link(struct pci_slot *pci_slot);
+void pci_hp_create_module_link(struct pci_slot *pci_slot);
+void pci_hp_remove_module_link(struct pci_slot *pci_slot);
 #endif
 
 /**
@@ -1817,13 +1833,13 @@
 /* PCI <-> OF binding helpers */
 #ifdef CONFIG_OF
 struct device_node;
-extern void pci_set_of_node(struct pci_dev *dev);
-extern void pci_release_of_node(struct pci_dev *dev);
-extern void pci_set_bus_of_node(struct pci_bus *bus);
-extern void pci_release_bus_of_node(struct pci_bus *bus);
+void pci_set_of_node(struct pci_dev *dev);
+void pci_release_of_node(struct pci_dev *dev);
+void pci_set_bus_of_node(struct pci_bus *bus);
+void pci_release_bus_of_node(struct pci_bus *bus);
 
 /* Arch may override this (weak) */
-extern struct device_node * __weak pcibios_get_phb_of_node(struct pci_bus *bus);
+struct device_node *pcibios_get_phb_of_node(struct pci_bus *bus);
 
 static inline struct device_node *
 pci_device_to_OF_node(const struct pci_dev *pdev)
diff --git a/include/linux/pci_hotplug.h b/include/linux/pci_hotplug.h
index 45fc162..8db71dc 100644
--- a/include/linux/pci_hotplug.h
+++ b/include/linux/pci_hotplug.h
@@ -125,12 +125,12 @@
 	return pci_slot_name(slot->pci_slot);
 }
 
-extern int __pci_hp_register(struct hotplug_slot *slot, struct pci_bus *pbus,
-			     int nr, const char *name,
-			     struct module *owner, const char *mod_name);
-extern int pci_hp_deregister(struct hotplug_slot *slot);
-extern int __must_check pci_hp_change_slot_info	(struct hotplug_slot *slot,
-						 struct hotplug_slot_info *info);
+int __pci_hp_register(struct hotplug_slot *slot, struct pci_bus *pbus, int nr,
+		      const char *name, struct module *owner,
+		      const char *mod_name);
+int pci_hp_deregister(struct hotplug_slot *slot);
+int __must_check pci_hp_change_slot_info(struct hotplug_slot *slot,
+					 struct hotplug_slot_info *info);
 
 /* use a define to avoid include chaining to get THIS_MODULE & friends */
 #define pci_hp_register(slot, pbus, devnr, name) \
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index f11c1c2..a80f9e6 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -1604,6 +1604,7 @@
 #define PCI_SUBDEVICE_ID_KEYSPAN_SX2	0x5334
 
 #define PCI_VENDOR_ID_MARVELL		0x11ab
+#define PCI_VENDOR_ID_MARVELL_EXT	0x1b4b
 #define PCI_DEVICE_ID_MARVELL_GT64111	0x4146
 #define PCI_DEVICE_ID_MARVELL_GT64260	0x6430
 #define PCI_DEVICE_ID_MARVELL_MV64360	0x6460
diff --git a/include/linux/pcieport_if.h b/include/linux/pcieport_if.h
index e6f91b1..9572669 100644
--- a/include/linux/pcieport_if.h
+++ b/include/linux/pcieport_if.h
@@ -62,7 +62,7 @@
 #define to_service_driver(d) \
 	container_of(d, struct pcie_port_service_driver, driver)
 
-extern int pcie_port_service_register(struct pcie_port_service_driver *new);
-extern void pcie_port_service_unregister(struct pcie_port_service_driver *new);
+int pcie_port_service_register(struct pcie_port_service_driver *new);
+void pcie_port_service_unregister(struct pcie_port_service_driver *new);
 
 #endif /* _PCIEPORT_IF_H_ */