hw/qdev: Pass bus argument to qdev_hotplug_allowed()

In preparation of checking the parent bus is hot(un)pluggable
in a few commits, pass a 'bus' argument to qdev_hotplug_allowed().

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
[PMD: Split from bigger patch, part 1/6]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20250110091908.64454-2-philmd@linaro.org>

hw/core/qdev-hotplug.c

@@ -30,7 +30,7 @@ HotplugHandler *qdev_get_machine_hotplug_handler(DeviceState *dev)
     return NULL;
 }
 
-bool qdev_hotplug_allowed(DeviceState *dev, Error **errp)
+bool qdev_hotplug_allowed(DeviceState *dev, BusState *bus, Error **errp)
 {
     MachineState *machine;
     MachineClass *mc;

include/hw/qdev-core.h

@@ -540,7 +540,7 @@ void qdev_set_legacy_instance_id(DeviceState *dev, int alias_id,
                                  int required_for_version);
 HotplugHandler *qdev_get_bus_hotplug_handler(DeviceState *dev);
 HotplugHandler *qdev_get_machine_hotplug_handler(DeviceState *dev);
-bool qdev_hotplug_allowed(DeviceState *dev, Error **errp);
+bool qdev_hotplug_allowed(DeviceState *dev, BusState *bus, Error **errp);
 
 /**
  * qdev_get_hotplug_handler() - Get handler responsible for device wiring

system/qdev-monitor.c

@@ -691,7 +691,7 @@ DeviceState *qdev_device_add_from_qdict(const QDict *opts,
 
     /* Check whether the hotplug is allowed by the machine */
     if (phase_check(PHASE_MACHINE_READY)) {
-        if (!qdev_hotplug_allowed(dev, errp)) {
+        if (!qdev_hotplug_allowed(dev, bus, errp)) {
             goto err_del_dev;
         }