Re: [Qemu-devel] [PATCH 4/7] qdev: Introduce DEFINE_PROP_LINK

[Paolo Bonzini]

On 28/06/2017 14:48, Fam Zheng wrote:
> 
> It's implemented by creating a wrapper property that basically forwards
> operations to a QOM "link-FOO" property, which handles the check
> callback and flags. The feature that is missing from QOM is the dynamic
> child pointer which is done in the added code with the usual "offset"
> approach.

Would it be possible to add a ".create" field to PropertyInfo?  Then
there's no need to introduce the wrapper.

Also, I think _check and _flags can be always
qdev_prop_allow_set_link_before_realize and
OBJ_PROP_LINK_UNREF_ON_RELEASE for DEFINE_PROP_LINK.

Paolo