[Qemu-devel] [PATCH v4 09/18] prep_pci: QOM'ify Raven PCI host bridge

["Andreas Färber" <afaerber@suse.de>]

Introduce type constant and cast macro. Avoid accessing parent fields
directly.

Also add missing space and braces.

Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 hw/prep_pci.c |   17 ++++++++++++-----
 1 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/hw/prep_pci.c b/hw/prep_pci.c
index a8cdc21..69c19df 100644
--- a/hw/prep_pci.c
+++ b/hw/prep_pci.c
@@ -28,8 +28,14 @@
 #include "pc.h"
 #include "exec-memory.h"
 
+#define TYPE_RAVEN_PCI_HOST_BRIDGE "raven-pcihost"
+
+#define RAVEN_PCI_HOST_BRIDGE(obj) \
+    OBJECT_CHECK(PREPPCIState, (obj), TYPE_RAVEN_PCI_HOST_BRIDGE)
+
 typedef struct PRePPCIState {
     PCIHostState host_state;
+
     MemoryRegion intack;
     qemu_irq irq[4];
 } PREPPCIState;
@@ -42,9 +48,10 @@ static inline uint32_t PPC_PCIIO_config(target_phys_addr_t addr)
 {
     int i;
 
-    for(i = 0; i < 11; i++) {
-        if ((addr & (1 << (11 + i))) != 0)
+    for (i = 0; i < 11; i++) {
+        if ((addr & (1 << (11 + i))) != 0) {
             break;
+        }
     }
     return (addr & 0x7ff) |  (i << 11);
 }
@@ -97,7 +104,7 @@ static void prep_set_irq(void *opaque, int irq_num, int level)
 static int raven_pcihost_init(SysBusDevice *dev)
 {
     PCIHostState *h = FROM_SYSBUS(PCIHostState, dev);
-    PREPPCIState *s = DO_UPCAST(PREPPCIState, host_state, h);
+    PREPPCIState *s = RAVEN_PCI_HOST_BRIDGE(dev);
     MemoryRegion *address_space_mem = get_system_memory();
     MemoryRegion *address_space_io = get_system_io();
     PCIBus *bus;
@@ -107,7 +114,7 @@ static int raven_pcihost_init(SysBusDevice *dev)
         sysbus_init_irq(dev, &s->irq[i]);
     }
 
-    bus = pci_register_bus(&h->busdev.qdev, NULL,
+    bus = pci_register_bus(DEVICE(dev), NULL,
                            prep_set_irq, prep_map_irq, s->irq,
                            address_space_mem, address_space_io, 0, 4);
     h->bus = bus;
@@ -184,7 +191,7 @@ static void raven_pcihost_class_init(ObjectClass *klass, void *data)
 }
 
 static const TypeInfo raven_pcihost_info = {
-    .name = "raven-pcihost",
+    .name = TYPE_RAVEN_PCI_HOST_BRIDGE,
     .parent = TYPE_SYS_BUS_DEVICE,
     .instance_size = sizeof(PREPPCIState),
     .class_init = raven_pcihost_class_init,
-- 
1.7.7