diff options
| author | Eduardo Habkost <ehabkost@redhat.com> | 2019-01-10 16:04:57 -0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2019-01-17 21:10:57 -0500 |
| commit | d7741743f4f3d2683d1bb6938f88dc0167c21afa (patch) | |
| tree | 26d7b5126284169d4cd3a4b9d467927af47cb6ef /qom | |
| parent | ecd3b89b0549d6b82bed5e25a0a2fb153d5df4d4 (diff) | |
globals: Allow global properties to be optional
Making some global properties optional will let us simplify
compat code when a given property works on most (but not all)
subclasses of a given type.
Device types will be able to opt out from optional compat
properties by simply not registering those properties.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'qom')
| -rw-r--r-- | qom/object.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/qom/object.c b/qom/object.c index 4e5226ca12..b8c732063b 100644 --- a/qom/object.c +++ b/qom/object.c @@ -385,6 +385,9 @@ void object_apply_global_props(Object *obj, const GPtrArray *props, Error **errp if (object_dynamic_cast(obj, p->driver) == NULL) { continue; } + if (p->optional && !object_property_find(obj, p->property, NULL)) { + continue; + } p->used = true; object_property_parse(obj, p->value, p->property, &err); if (err != NULL) { |