[Qemu-devel] [PATCH RESEND] RCU implementation for Qemu. Fixup some dynamic casts in the Qemu device tree to correspond to the QOM type-checking system.

[Mike Day <ncmike@ncultra.org>]

These patches change from using Linux kernel style upcasts to typesafe
object oriented casts with runtime checking semantics.

These patches apply to Paolo Bonzini's rcu tree:

https://github.com/bonzini/qemu/tree/rcu
commit 781e47bf1693a80b84eec298a6a1c7b29ab2c135

Signed-off-by: Mike Day <ncmike@ncultra.org>
---
 hw/misc/ivshmem.c              | 2 +-
 hw/pci-bridge/pci_bridge_dev.c | 6 +++---
 hw/pci/pci_bridge.c            | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/hw/misc/ivshmem.c b/hw/misc/ivshmem.c
index ebcb52a..46d8c27 100644
--- a/hw/misc/ivshmem.c
+++ b/hw/misc/ivshmem.c
@@ -789,7 +789,7 @@ static void pci_ivshmem_uninit(PCIDevice *dev)
 
 static void pci_ivshmem_instance_finalize(Object *obj)
 {
-    IVShmemState *s = IVSHMEM(dev);
+    IVShmemState *s = IVSHMEM(obj);
 
     if (s->migration_blocker) {
         migrate_del_blocker(s->migration_blocker);
diff --git a/hw/pci-bridge/pci_bridge_dev.c b/hw/pci-bridge/pci_bridge_dev.c
index c995d5d..22caf14 100644
--- a/hw/pci-bridge/pci_bridge_dev.c
+++ b/hw/pci-bridge/pci_bridge_dev.c
@@ -87,7 +87,6 @@ shpc_error:
 bridge_error:
     return err;
 }
-
 static void pci_bridge_dev_exitfn(PCIDevice *dev)
 {
     PCIBridgeDev *bridge_dev = PCI_BRIDGE_DEV(dev);
@@ -102,8 +101,9 @@ static void pci_bridge_dev_exitfn(PCIDevice *dev)
 static void pci_bridge_dev_instance_finalize(Object *obj)
 {
     PCIDevice *dev = PCI_DEVICE(obj);
-    PCIBridge *br = DO_UPCAST(PCIBridge, dev, dev);
-    PCIBridgeDev *bridge_dev = DO_UPCAST(PCIBridgeDev, bridge, br);
+    PCIBridge *br = PCI_BRIDGE(dev);
+    PCIBridgeDev *bridge_dev = PCI_BRIDGE_DEV(br);
+    
     shpc_free(dev);
     memory_region_destroy(&bridge_dev->bar);
     pci_bridge_free(dev);
diff --git a/hw/pci/pci_bridge.c b/hw/pci/pci_bridge.c
index 63f9912..307e076 100644
--- a/hw/pci/pci_bridge.c
+++ b/hw/pci/pci_bridge.c
@@ -391,7 +391,7 @@ void pci_bridge_exitfn(PCIDevice *pci_dev)
 
 void pci_bridge_free(PCIDevice *pci_dev)
 {
-    PCIBridge *s = DO_UPCAST(PCIBridge, dev, pci_dev);
+    PCIBridge *s = PCI_BRIDGE(pci_dev);
     pci_bridge_region_cleanup(s, s->windows);
     memory_region_destroy(&s->address_space_mem);
     memory_region_destroy(&s->address_space_io);
-- 
1.8.3.1