Re: [Qemu-devel] [PATCH 2/3] qobject: assume base of a qobject is at offset 0

[Paolo Bonzini]

On 21/03/2018 15:01, Eric Blake wrote:
>>
> 
> Interesting.  If we do this, we should also simplify qobject_to() from
> its current:
> 
> #define qobject_to(type, obj) ({ \
>     QObject *_tmp = qobject_check_type(obj, glue(QTYPE_CAST_TO_, type)); \
>     _tmp ? container_of(_tmp, type, base) : (type *)NULL; })
> 
> to the simpler:
> 
> #define qobject_to(type, obj) \
>     ((type *)qobject_check_type(obj, glue(QTYPE_CAST_TO_, type)))

Yes, indeed!

Paolo