[PATCH v2] ppc/pnv: Make PnvXScomInterface an incomplete type

[Greg Kurz]

PnvXScomInterface is an interface instance. It should never be
dereferenced. Drop the dummy type definition for extra safety,
which is the common practice with QOM interfaces.

While here also convert the bogus OBJECT_CHECK() to INTERFACE_CHECK().

Signed-off-by: Greg Kurz <address@hidden>
---
v2: convert OBJECT_CHECK() to INTERFACE_CHECK()
---
 include/hw/ppc/pnv_xscom.h |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/include/hw/ppc/pnv_xscom.h b/include/hw/ppc/pnv_xscom.h
index 1c1d76bf9be5..306c22461587 100644
--- a/include/hw/ppc/pnv_xscom.h
+++ b/include/hw/ppc/pnv_xscom.h
@@ -22,13 +22,11 @@
 
 #include "qom/object.h"
 
-typedef struct PnvXScomInterface {
-    Object parent;
-} PnvXScomInterface;
+typedef struct PnvXScomInterface PnvXScomInterface;
 
 #define TYPE_PNV_XSCOM_INTERFACE "pnv-xscom-interface"
 #define PNV_XSCOM_INTERFACE(obj) \
-     OBJECT_CHECK(PnvXScomInterface, (obj), TYPE_PNV_XSCOM_INTERFACE)
+    INTERFACE_CHECK(PnvXScomInterface, (obj), TYPE_PNV_XSCOM_INTERFACE)
 #define PNV_XSCOM_INTERFACE_CLASS(klass)                \
     OBJECT_CLASS_CHECK(PnvXScomInterfaceClass, (klass), \
                        TYPE_PNV_XSCOM_INTERFACE)