On Wed, 25 Sep 2019 08:55:50 +0200
Cédric Le Goater <c...@kaod.org> wrote:

> On 25/09/2019 08:45, David Gibson wrote:
> > Interface instances should never be directly dereferenced.  So, the common
> > practice is to make them incomplete types to make sure no-one does that.
> > XICSFrabric, however, had a dummy type which is less safe.
> > 
> > Signed-off-by: David Gibson <da...@gibson.dropbear.id.au>
> > ---
> >  include/hw/ppc/xics.h | 4 +---
> >  1 file changed, 1 insertion(+), 3 deletions(-)
> > 
> > diff --git a/include/hw/ppc/xics.h b/include/hw/ppc/xics.h
> > index 64a2c8862a..1ae34ce9cd 100644
> > --- a/include/hw/ppc/xics.h
> > +++ b/include/hw/ppc/xics.h
> > @@ -147,9 +147,7 @@ struct ICSIRQState {
> >      uint8_t flags;
> >  };
> >  
> > -struct XICSFabric {
> > -    Object parent;
> > -};
> > +typedef struct XICSFabric XICSFabric;
> >  
> >  #define TYPE_XICS_FABRIC "xics-fabric"
> >  #define XICS_FABRIC(obj)                                     \
> > 
> 
> you should also change :
> 
> #define XICS_FABRIC(obj)                                     \
>     OBJECT_CHECK(XICSFabric, (obj), TYPE_XICS_FABRIC)
> 
> 
> and use INTERFACE_CHECK()
> 

Yes but I think this deserves a separate patch.

> C.


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