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virtio-net: use aliases instead of duplicate qdev properties

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virtio-net-pci, virtio-net-s390, and virtio-net-ccw all duplicate the
qdev properties of their VirtIONet child. This approach does not work
well with string or pointer properties since we must be careful about
leaking or double-freeing them.

Use the QOM alias property to forward property accesses to the
VirtIONet child.  This way no duplication is necessary.

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Gonglei 2014-09-30 14:10:27 +08:00 • committed by Paolo Bonzini
parent 20e6dca1df
commit 7779edfeb1
3 changed files with 3 additions and 6 deletions
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3
hw/virtio/virtio-pci.c
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@ -1425,8 +1425,6 @@ static Property virtio_net_properties[] = {
VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, false),
DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 3),
DEFINE_VIRTIO_NET_FEATURES(VirtIOPCIProxy, host_features),
DEFINE_NIC_PROPERTIES(VirtIONetPCI, vdev.nic_conf),
DEFINE_VIRTIO_NET_PROPERTIES(VirtIONetPCI, vdev.net_conf),
DEFINE_PROP_END_OF_LIST(),
};
@ -1467,6 +1465,7 @@ static void virtio_net_pci_instance_init(Object *obj)
VirtIONetPCI *dev = VIRTIO_NET_PCI(obj);
object_initialize(&dev->vdev, sizeof(dev->vdev), TYPE_VIRTIO_NET);
object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
qdev_alias_all_properties(DEVICE(&dev->vdev), obj);
}
static const TypeInfo virtio_net_pci_info = {