1 files changed, 39 insertions, 0 deletions

diff --git a/drivers/pci/slot.c b/drivers/pci/slot.c
index fe95ce20bcbd..eddb0748b0ea 100644
--- a/drivers/pci/slot.c
+++ b/drivers/pci/slot.c
@@ -307,6 +307,45 @@ void pci_destroy_slot(struct pci_slot *slot)
 }
 EXPORT_SYMBOL_GPL(pci_destroy_slot);
 
+#if defined(CONFIG_HOTPLUG_PCI) || defined(CONFIG_HOTPLUG_PCI_MODULE)
+#include <linux/pci_hotplug.h>
+/**
+ * pci_hp_create_link - create symbolic link to the hotplug driver module.
+ * @slot: struct pci_slot
+ *
+ * Helper function for pci_hotplug_core.c to create symbolic link to
+ * the hotplug driver module.
+ */
+void pci_hp_create_module_link(struct pci_slot *pci_slot)
+{
+        struct hotplug_slot *slot = pci_slot->hotplug;
+        struct kobject *kobj = NULL;
+        int no_warn;
+
+        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");
+        kobject_put(kobj);
+}
+EXPORT_SYMBOL_GPL(pci_hp_create_module_link);
+
+/**
+ * pci_hp_remove_link - remove symbolic link to the hotplug driver module.
+ * @slot: struct pci_slot
+ *
+ * Helper function for pci_hotplug_core.c to remove symbolic link to
+ * the hotplug driver module.
+ */
+void pci_hp_remove_module_link(struct pci_slot *pci_slot)
+{
+        sysfs_remove_link(&pci_slot->kobj, "module");
+}
+EXPORT_SYMBOL_GPL(pci_hp_remove_module_link);
+#endif
+
 static int pci_slot_init(void)
 {
         struct kset *pci_bus_kset;