[Qemu-devel] [PATCH 2/4] move qdev hotplug code to qdev-hotplug.c

[Eduardo Habkost <ehabkost@redhat.com>]

The qdev hotplug code is used only in softmmu mode, so move it to
a separate file so we can eventually avoid compiling it in
user-only mode.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
 hw/core/bus.c          | 11 -------
 hw/core/qdev-hotplug.c | 69 ++++++++++++++++++++++++++++++++++++++++++
 hw/core/qdev.c         | 35 ---------------------
 hw/core/Makefile.objs  |  2 +-
 4 files changed, 70 insertions(+), 47 deletions(-)
 create mode 100644 hw/core/qdev-hotplug.c

diff --git a/hw/core/bus.c b/hw/core/bus.c
index e09843f6ab..35e042416c 100644
--- a/hw/core/bus.c
+++ b/hw/core/bus.c
@@ -22,17 +22,6 @@
 #include "hw/qdev.h"
 #include "qapi/error.h"
 
-void qbus_set_hotplug_handler(BusState *bus, Object *handler, Error **errp)
-{
-    object_property_set_link(OBJECT(bus), OBJECT(handler),
-                             QDEV_HOTPLUG_HANDLER_PROPERTY, errp);
-}
-
-void qbus_set_bus_hotplug_handler(BusState *bus, Error **errp)
-{
-    qbus_set_hotplug_handler(bus, OBJECT(bus), errp);
-}
-
 int qbus_walk_children(BusState *bus,
                        qdev_walkerfn *pre_devfn, qbus_walkerfn *pre_busfn,
                        qdev_walkerfn *post_devfn, qbus_walkerfn *post_busfn,
diff --git a/hw/core/qdev-hotplug.c b/hw/core/qdev-hotplug.c
new file mode 100644
index 0000000000..8ab31043a7
--- /dev/null
+++ b/hw/core/qdev-hotplug.c
@@ -0,0 +1,69 @@
+/*
+ * qdev and qbus hotplug helpers
+ *
+ *  Copyright (c) 2009 CodeSourcery
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu/osdep.h"
+#include "hw/qdev.h"
+#include "sysemu/sysemu.h"
+#include "hw/boards.h"
+
+void qbus_set_hotplug_handler(BusState *bus, Object *handler, Error **errp)
+{
+    object_property_set_link(OBJECT(bus), OBJECT(handler),
+                             QDEV_HOTPLUG_HANDLER_PROPERTY, errp);
+}
+
+void qbus_set_bus_hotplug_handler(BusState *bus, Error **errp)
+{
+    qbus_set_hotplug_handler(bus, OBJECT(bus), errp);
+}
+
+HotplugHandler *qdev_get_machine_hotplug_handler(DeviceState *dev)
+{
+    MachineState *machine;
+    MachineClass *mc;
+    Object *m_obj = qdev_get_machine();
+
+    if (object_dynamic_cast(m_obj, TYPE_MACHINE)) {
+        machine = MACHINE(m_obj);
+        mc = MACHINE_GET_CLASS(machine);
+        if (mc->get_hotplug_handler) {
+            return mc->get_hotplug_handler(machine, dev);
+        }
+    }
+
+    return NULL;
+}
+
+HotplugHandler *qdev_get_bus_hotplug_handler(DeviceState *dev)
+{
+    if (dev->parent_bus) {
+        return dev->parent_bus->hotplug_handler;
+    }
+    return NULL;
+}
+
+HotplugHandler *qdev_get_hotplug_handler(DeviceState *dev)
+{
+    HotplugHandler *hotplug_ctrl = qdev_get_machine_hotplug_handler(dev);
+
+    if (hotplug_ctrl == NULL && dev->parent_bus) {
+        hotplug_ctrl = qdev_get_bus_hotplug_handler(dev);
+    }
+    return hotplug_ctrl;
+}
diff --git a/hw/core/qdev.c b/hw/core/qdev.c
index f73e7ded1a..3015da0ac9 100644
--- a/hw/core/qdev.c
+++ b/hw/core/qdev.c
@@ -219,41 +219,6 @@ void qdev_set_legacy_instance_id(DeviceState *dev, int alias_id,
     dev->alias_required_for_version = required_for_version;
 }
 
-HotplugHandler *qdev_get_machine_hotplug_handler(DeviceState *dev)
-{
-    MachineState *machine;
-    MachineClass *mc;
-    Object *m_obj = qdev_get_machine();
-
-    if (object_dynamic_cast(m_obj, TYPE_MACHINE)) {
-        machine = MACHINE(m_obj);
-        mc = MACHINE_GET_CLASS(machine);
-        if (mc->get_hotplug_handler) {
-            return mc->get_hotplug_handler(machine, dev);
-        }
-    }
-
-    return NULL;
-}
-
-HotplugHandler *qdev_get_bus_hotplug_handler(DeviceState *dev)
-{
-    if (dev->parent_bus) {
-        return dev->parent_bus->hotplug_handler;
-    }
-    return NULL;
-}
-
-HotplugHandler *qdev_get_hotplug_handler(DeviceState *dev)
-{
-    HotplugHandler *hotplug_ctrl = qdev_get_machine_hotplug_handler(dev);
-
-    if (hotplug_ctrl == NULL && dev->parent_bus) {
-        hotplug_ctrl = qdev_get_bus_hotplug_handler(dev);
-    }
-    return hotplug_ctrl;
-}
-
 static int qdev_reset_one(DeviceState *dev, void *opaque)
 {
     device_reset(dev);
diff --git a/hw/core/Makefile.objs b/hw/core/Makefile.objs
index 6789154807..9c4f953716 100644
--- a/hw/core/Makefile.objs
+++ b/hw/core/Makefile.objs
@@ -1,6 +1,6 @@
 # core qdev-related obj files, also used by *-user:
 common-obj-y += qdev.o qdev-properties.o
-common-obj-y += bus.o reset.o
+common-obj-y += bus.o reset.o qdev-hotplug.o
 common-obj-$(CONFIG_SOFTMMU) += qdev-fw.o
 common-obj-$(CONFIG_SOFTMMU) += fw-path-provider.o
 # irq.o needed for qdev GPIO handling:
-- 
2.18.0.rc1.1.g3f1ff2140