1 files changed, 5 insertions, 50 deletions

diff --git a/drivers/pci/hotplug/pciehp_acpi.c b/drivers/pci/hotplug/pciehp_acpi.c
index 88a5c57f2e5b..438d795f9fe3 100644
--- a/drivers/pci/hotplug/pciehp_acpi.c
+++ b/drivers/pci/hotplug/pciehp_acpi.c
@@ -24,6 +24,8 @@
  */
 
 #include <linux/acpi.h>
+#include <linux/pci.h>
+#include <linux/pci_hotplug.h>
 #include "pciehp.h"
 
 #define PCIEHP_DETECT_PCIE      (0)
@@ -41,59 +43,11 @@ MODULE_PARM_DESC(pciehp_detect_mode,
          "  auto(default) - Auto select mode. Use acpi option if duplicate\n"
          "                  slot ids are found. Otherwise, use pcie option\n");
 
-static int is_ejectable(acpi_handle handle)
-{
-        acpi_status status;
-        acpi_handle tmp;
-        unsigned long long removable;
-        status = acpi_get_handle(handle, "_ADR", &tmp);
-        if (ACPI_FAILURE(status))
-                return 0;
-        status = acpi_get_handle(handle, "_EJ0", &tmp);
-        if (ACPI_SUCCESS(status))
-                return 1;
-        status = acpi_evaluate_integer(handle, "_RMV", NULL, &removable);
-        if (ACPI_SUCCESS(status) && removable)
-                return 1;
-        return 0;
-}
-
-static acpi_status
-check_hotplug(acpi_handle handle, u32 lvl, void *context, void **rv)
-{
-        int *found = (int *)context;
-        if (is_ejectable(handle)) {
-                *found = 1;
-                return AE_CTRL_TERMINATE;
-        }
-        return AE_OK;
-}
-
-static int pciehp_detect_acpi_slot(struct pci_bus *pbus)
-{
-        acpi_handle handle;
-        struct pci_dev *pdev = pbus->self;
-        int found = 0;
-
-        if (!pdev){
-                int seg = pci_domain_nr(pbus), busnr = pbus->number;
-                handle = acpi_get_pci_rootbridge_handle(seg, busnr);
-        } else
-                handle = DEVICE_ACPI_HANDLE(&(pdev->dev));
-
-        if (!handle)
-                return 0;
-
-        acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1,
-                            check_hotplug, (void *)&found, NULL);
-        return found;
-}
-
 int pciehp_acpi_slot_detection_check(struct pci_dev *dev)
 {
         if (slot_detection_mode != PCIEHP_DETECT_ACPI)
                 return 0;
-        if (pciehp_detect_acpi_slot(dev->subordinate))
+        if (acpi_pci_detect_ejectable(dev->subordinate))
                 return 0;
         return -ENODEV;
 }
@@ -135,6 +89,7 @@ static int __init dummy_probe(struct pcie_device *dev,
         u32 slot_cap;
         struct slot *slot, *tmp;
         struct pci_dev *pdev = dev->port;
+        struct pci_bus *pbus = pdev->subordinate;
         if (!(slot = kzalloc(sizeof(*slot), GFP_KERNEL)))
                 return -ENOMEM;
         /* Note: pciehp_detect_mode != PCIEHP_DETECT_ACPI here */
@@ -149,7 +104,7 @@ static int __init dummy_probe(struct pcie_device *dev,
                         dup_slot_id++;
         }
         list_add_tail(&slot->slot_list, &dummy_slots);
-        if (!acpi_slot_detected && pciehp_detect_acpi_slot(pdev->subordinate))
+        if (!acpi_slot_detected && acpi_pci_detect_ejectable(pbus))
                 acpi_slot_detected = 1;
         return -ENODEV;         /* dummy driver always returns error */
 }