[Qemu-devel] [PATCH v2 02/12] qdev: use object_new, not g_malloc to create buses

[Paolo Bonzini <pbonzini@redhat.com>]

After the previous patch, creation of heap-allocated buses can
use qbus_init and does not need to hack the "free" callback.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 hw/pci/pci.c | 11 +++++------
 hw/pci/pci.h |  5 -----
 hw/sysbus.c  |  6 ++----
 3 files changed, 7 insertions(+), 15 deletions(-)

diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index 5fd1bcf..2dd57e2 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -274,13 +274,13 @@ int pci_find_domain(const PCIBus *bus)
     return -1;
 }
 
-void pci_bus_new_inplace(PCIBus *bus, DeviceState *parent,
+static void pci_bus_init(PCIBus *bus, DeviceState *parent,
                          const char *name,
                          MemoryRegion *address_space_mem,
                          MemoryRegion *address_space_io,
                          uint8_t devfn_min)
 {
-    qbus_create_inplace(&bus->qbus, TYPE_PCI_BUS, parent, name);
+    qbus_init(&bus->qbus, parent, name);
     assert(PCI_FUNC(devfn_min) == 0);
     bus->devfn_min = devfn_min;
     bus->address_space_mem = address_space_mem;
@@ -300,10 +300,9 @@ PCIBus *pci_bus_new(DeviceState *parent, const char *name,
 {
     PCIBus *bus;
 
-    bus = g_malloc0(sizeof(*bus));
-    pci_bus_new_inplace(bus, parent, name, address_space_mem,
-                        address_space_io, devfn_min);
-    OBJECT(bus)->free = g_free;
+    bus = PCI_BUS(object_new(TYPE_PCI_BUS));
+    pci_bus_init(bus, parent, name, address_space_mem,
+                 address_space_io, devfn_min);
     return bus;
 }
 
diff --git a/hw/pci/pci.h b/hw/pci/pci.h
index f340fe5..a435106 100644
--- a/hw/pci/pci.h
+++ b/hw/pci/pci.h
@@ -318,11 +318,6 @@ typedef enum {
 
 typedef int (*pci_hotplug_fn)(DeviceState *qdev, PCIDevice *pci_dev,
                               PCIHotplugState state);
-void pci_bus_new_inplace(PCIBus *bus, DeviceState *parent,
-                         const char *name,
-                         MemoryRegion *address_space_mem,
-                         MemoryRegion *address_space_io,
-                         uint8_t devfn_min);
 PCIBus *pci_bus_new(DeviceState *parent, const char *name,
                     MemoryRegion *address_space_mem,
                     MemoryRegion *address_space_io,
diff --git a/hw/sysbus.c b/hw/sysbus.c
index f0ab8a8..43875bd 100644
--- a/hw/sysbus.c
+++ b/hw/sysbus.c
@@ -271,10 +271,8 @@ static void main_system_bus_create(void)
 {
     /* assign main_system_bus before qbus_create_inplace()
      * in order to make "if (bus != sysbus_get_default())" work */
-    main_system_bus = g_malloc0(system_bus_info.instance_size);
-    qbus_create_inplace(main_system_bus, TYPE_SYSTEM_BUS, NULL,
-                        "main-system-bus");
-    OBJECT(main_system_bus)->free = g_free;
+    main_system_bus = BUS(object_new(TYPE_SYSTEM_BUS));
+    qbus_init(main_system_bus, NULL, "main-system-bus");
     object_property_add_child(container_get(qdev_get_machine(),
                                             "/unattached"),
                               "sysbus", OBJECT(main_system_bus), NULL);
-- 
1.8.1