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qdev: Provide qdev_get_bus_hotplug_handler() 

Let's use a wrapper instead of looking it up manually. This function can
than be reused when we explicitly want to have the bus hotplug handler
(e.g. when the bus hotplug handler was overwritten by the machine
hotplug handler).

Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190228122849.4296-4-david@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This commit is contained in:
David Hildenbrand 2019-02-28 13:28:49 +01:00 committed by Eduardo Habkost
parent 17cc0128da
commit 14405c274e
2 changed files with 10 additions and 1 deletions
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10
hw/core/qdev.c
View File

@ -236,12 +236,20 @@ HotplugHandler *qdev_get_machine_hotplug_handler(DeviceState *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 = dev->parent_bus->hotplug_handler;
hotplug_ctrl = qdev_get_bus_hotplug_handler(dev);
}
return hotplug_ctrl;
}

1
include/hw/qdev-core.h
View File

@ -281,6 +281,7 @@ DeviceState *qdev_try_create(BusState *bus, const char *name);
void qdev_init_nofail(DeviceState *dev);
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);
/**
* qdev_get_hotplug_handler: Get handler responsible for device wiring