5 files changed, 19 insertions, 7 deletions

diff --git a/drivers/pci/hotplug/rpadlpar_core.c b/drivers/pci/hotplug/rpadlpar_core.c
index bb3c101c2c5a..deb6b5e35feb 100644
--- a/drivers/pci/hotplug/rpadlpar_core.c
+++ b/drivers/pci/hotplug/rpadlpar_core.c
@@ -159,8 +159,8 @@ static void dlpar_pci_add_bus(struct device_node *dn)
         /* Claim new bus resources */
         pcibios_claim_one_bus(dev->bus);
 
-        /* ioremap() for child bus, which may or may not succeed */
-        remap_bus_range(dev->subordinate);
+        /* Map IO space for child bus, which may or may not succeed */
+        pcibios_map_io_space(dev->subordinate);
 
         /* Add new devices to global lists.  Register in proc, sysfs. */
         pci_bus_add_devices(phb->bus);
@@ -390,7 +390,7 @@ int dlpar_remove_pci_slot(char *drc_name, struct device_node *dn)
         } else
                 pcibios_remove_pci_devices(bus);
 
-        if (unmap_bus_range(bus)) {
+        if (pcibios_unmap_io_space(bus)) {
                 printk(KERN_ERR "%s: failed to unmap bus range\n",
                         __FUNCTION__);
                 return -ERANGE;
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 10dbdec80416..1b7b2812bf2d 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -20,7 +20,7 @@
 #include <linux/stat.h>
 #include <linux/topology.h>
 #include <linux/mm.h>
-
+#include <linux/capability.h>
 #include "pci.h"
 
 static int sysfs_initialized;   /* = 0 */
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index a7bce75c6732..34b8dae0d90f 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -22,6 +22,18 @@ EXPORT_SYMBOL(pci_root_buses);
 
 LIST_HEAD(pci_devices);
 
+/*
+ * Some device drivers need know if pci is initiated.
+ * Basically, we think pci is not initiated when there
+ * is no device in list of pci_devices.
+ */
+int no_pci_devices(void)
+{
+        return list_empty(&pci_devices);
+}
+
+EXPORT_SYMBOL(no_pci_devices);
+
 #ifdef HAVE_PCI_LEGACY
 /**
  * pci_create_legacy_files - create legacy I/O port and memory files
diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
index cfa0dfe61b1a..90adc62d07ff 100644
--- a/drivers/pci/proc.c
+++ b/drivers/pci/proc.c
@@ -11,7 +11,7 @@
 #include <linux/module.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
-
+#include <linux/capability.h>
 #include <asm/uaccess.h>
 #include <asm/byteorder.h>
 #include "pci.h"
diff --git a/drivers/pci/search.c b/drivers/pci/search.c
index 9f7090fa8771..c6e79d01ce3d 100644
--- a/drivers/pci/search.c
+++ b/drivers/pci/search.c
@@ -202,7 +202,7 @@ static struct pci_dev * pci_find_subsys(unsigned int vendor,
          * can cause some machines to crash.  So here we detect and flag that
          * situation and bail out early.
          */
-        if (unlikely(list_empty(&pci_devices)))
+        if (unlikely(no_pci_devices()))
                 return NULL;
         down_read(&pci_bus_sem);
         n = from ? from->global_list.next : pci_devices.next;
@@ -277,7 +277,7 @@ pci_get_subsys(unsigned int vendor, unsigned int device,
          * can cause some machines to crash.  So here we detect and flag that
          * situation and bail out early.
          */
-        if (unlikely(list_empty(&pci_devices)))
+        if (unlikely(no_pci_devices()))
                 return NULL;
         down_read(&pci_bus_sem);
         n = from ? from->global_list.next : pci_devices.next;