mem: make nvdimm_device_list global

nvdimm_device_list is required for parsing the list for devices
in subsequent patches. Move it to common area.

Signed-off-by: Shivaprasad G Bhat <sbhat@linux.ibm.com>
Reviewed-By: Igor Mammedov <imammedo@redhat.com>
---
This looks to break the mips-softmmu build.
The mips depends on CONFIG_NVDIMM_ACPI, adding CONFIG_NVDIMM looks wrong.
Is there some CONFIG tweak I need to do here? OR

Should I move these functions to utilities like I have
done here -(1b8eaea)?

hw/acpi/nvdimm.c

@@ -33,33 +33,6 @@
 #include "hw/nvram/fw_cfg.h"
 #include "hw/mem/nvdimm.h"
 
-static int nvdimm_device_list(Object *obj, void *opaque)
-{
-    GSList **list = opaque;
-
-    if (object_dynamic_cast(obj, TYPE_NVDIMM)) {
-        *list = g_slist_append(*list, DEVICE(obj));
-    }
-
-    object_child_foreach(obj, nvdimm_device_list, opaque);
-    return 0;
-}
-
-/*
- * inquire NVDIMM devices and link them into the list which is
- * returned to the caller.
- *
- * Note: it is the caller's responsibility to free the list to avoid
- * memory leak.
- */
-static GSList *nvdimm_get_device_list(void)
-{
-    GSList *list = NULL;
-
-    object_child_foreach(qdev_get_machine(), nvdimm_device_list, &list);
-    return list;
-}
-
 #define NVDIMM_UUID_LE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)             \
    { (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
      (b) & 0xff, ((b) >> 8) & 0xff, (c) & 0xff, ((c) >> 8) & 0xff,          \

hw/mem/nvdimm.c

@@ -29,6 +29,33 @@
 #include "hw/mem/nvdimm.h"
 #include "hw/mem/memory-device.h"
 
+static int nvdimm_device_list(Object *obj, void *opaque)
+{
+    GSList **list = opaque;
+
+    if (object_dynamic_cast(obj, TYPE_NVDIMM)) {
+        *list = g_slist_append(*list, DEVICE(obj));
+    }
+
+    object_child_foreach(obj, nvdimm_device_list, opaque);
+    return 0;
+}
+
+/*
+ * inquire NVDIMM devices and link them into the list which is
+ * returned to the caller.
+ *
+ * Note: it is the caller's responsibility to free the list to avoid
+ * memory leak.
+ */
+GSList *nvdimm_get_device_list(void)
+{
+    GSList *list = NULL;
+
+    object_child_foreach(qdev_get_machine(), nvdimm_device_list, &list);
+    return list;
+}
+
 static void nvdimm_get_label_size(Object *obj, Visitor *v, const char *name,
                                   void *opaque, Error **errp)
 {

include/hw/mem/nvdimm.h

@@ -150,4 +150,6 @@ void nvdimm_build_acpi(GArray *table_offsets, GArray *table_data,
                        uint32_t ram_slots);
 void nvdimm_plug(NVDIMMState *state);
 void nvdimm_acpi_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev);
+GSList *nvdimm_get_device_list(void);
+
 #endif