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qdev: Remove DeviceClass::init() and ::exit() 

Since no devices use it, we can safely remove it.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20180419212727.26095-5-f4bug@amsat.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Removal of DeviceClass::init() moved from previous patch, missing
documentation updates supplied]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180528144509.15812-5-armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Philippe Mathieu-Daudé 2018-05-28 16:45:09 +02:00 committed by Paolo Bonzini
parent dbfe00130e
commit ff46d9d4d6
2 changed files with 4 additions and 44 deletions
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28
hw/core/qdev.c
View File

@ -208,32 +208,6 @@ void device_listener_unregister(DeviceListener *listener)
QTAILQ_REMOVE(&device_listeners, listener, link);
}
static void device_realize(DeviceState *dev, Error **errp)
{
DeviceClass *dc = DEVICE_GET_CLASS(dev);
if (dc->init) {
int rc = dc->init(dev);
if (rc < 0) {
error_setg(errp, "Device initialization failed.");
return;
}
}
}
static void device_unrealize(DeviceState *dev, Error **errp)
{
DeviceClass *dc = DEVICE_GET_CLASS(dev);
if (dc->exit) {
int rc = dc->exit(dev);
if (rc < 0) {
error_setg(errp, "Device exit failed.");
return;
}
}
}
void qdev_set_legacy_instance_id(DeviceState *dev, int alias_id,
int required_for_version)
{
@ -1065,8 +1039,6 @@ static void device_class_init(ObjectClass *class, void *data)
DeviceClass *dc = DEVICE_CLASS(class);
class->unparent = device_unparent;
dc->realize = device_realize;
dc->unrealize = device_unrealize;
/* by default all devices were considered as hotpluggable,
* so with intent to check it in generic qdev_unplug() /

20
include/hw/qdev-core.h
View File

@ -29,8 +29,6 @@ typedef enum DeviceCategory {
DEVICE_CATEGORY_MAX
} DeviceCategory;
typedef int (*qdev_initfn)(DeviceState *dev);
typedef int (*qdev_event)(DeviceState *dev);
typedef void (*DeviceRealize)(DeviceState *dev, Error **errp);
typedef void (*DeviceUnrealize)(DeviceState *dev, Error **errp);
typedef void (*DeviceReset)(DeviceState *dev);
@ -43,13 +41,9 @@ struct VMStateDescription;
* DeviceClass:
* @props: Properties accessing state fields.
* @realize: Callback function invoked when the #DeviceState:realized
* property is changed to %true. The default invokes @init if not %NULL.
* property is changed to %true.
* @unrealize: Callback function invoked when the #DeviceState:realized
* property is changed to %false.
* @init: Callback function invoked when the #DeviceState::realized property
* is changed to %true. Deprecated, new types inheriting directly from
* TYPE_DEVICE should use @realize instead, new leaf types should consult
* their respective parent type.
* @hotpluggable: indicates if #DeviceClass is hotpluggable, available
* as readonly "hotpluggable" property of #DeviceState instance
*
@ -73,19 +67,15 @@ struct VMStateDescription;
* object_initialize() in their own #TypeInfo.instance_init and forward the
* realization events appropriately.
*
* The @init callback is considered private to a particular bus implementation
* (immediate abstract child types of TYPE_DEVICE). Derived leaf types set an
* "init" callback on their parent class instead.
*
* Any type may override the @realize and/or @unrealize callbacks but needs
* to call the parent type's implementation if keeping their functionality
* is desired. Refer to QOM documentation for further discussion and examples.
*
* <note>
* <para>
* If a type derived directly from TYPE_DEVICE implements @realize, it does
* not need to implement @init and therefore does not need to store and call
* #DeviceClass' default @realize callback.
* Since TYPE_DEVICE doesn't implement @realize and @unrealize, types
* derived directly from it need not call their parent's @realize and
* @unrealize.
* For other types consult the documentation and implementation of the
* respective parent types.
* </para>
@ -124,8 +114,6 @@ typedef struct DeviceClass {
const struct VMStateDescription *vmsd;
/* Private to qdev / bus. */
qdev_initfn init; /* TODO remove, once users are converted to realize */
qdev_event exit; /* TODO remove, once users are converted to unrealize */
const char *bus_type;
} DeviceClass;