1 files changed, 22 insertions, 2 deletions

diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 8080588f88cb..586e7e993d3d 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -84,8 +84,7 @@ static acpi_osd_handler acpi_irq_handler;
 static void *acpi_irq_context;
 static struct workqueue_struct *kacpid_wq;
 static struct workqueue_struct *kacpi_notify_wq;
-struct workqueue_struct *kacpi_hotplug_wq;
-EXPORT_SYMBOL(kacpi_hotplug_wq);
+static struct workqueue_struct *kacpi_hotplug_wq;
 
 /*
  * This list of permanent mappings is for memory that may be accessed from
@@ -1778,3 +1777,24 @@ void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
 {
         __acpi_os_prepare_sleep = func;
 }
+
+void alloc_acpi_hp_work(acpi_handle handle, u32 type, void *context,
+                        void (*func)(struct work_struct *work))
+{
+        struct acpi_hp_work *hp_work;
+        int ret;
+
+        hp_work = kmalloc(sizeof(*hp_work), GFP_KERNEL);
+        if (!hp_work)
+                return;
+
+        hp_work->handle = handle;
+        hp_work->type = type;
+        hp_work->context = context;
+
+        INIT_WORK(&hp_work->work, func);
+        ret = queue_work(kacpi_hotplug_wq, &hp_work->work);
+        if (!ret)
+                kfree(hp_work);
+}
+EXPORT_SYMBOL_GPL(alloc_acpi_hp_work);