Use OBJECT_DECLARE_SIMPLE_TYPE when possible

This converts existing DECLARE_INSTANCE_CHECKER usage to
OBJECT_DECLARE_SIMPLE_TYPE when possible.

$ ./scripts/codeconverter/converter.py -i \
  --pattern=AddObjectDeclareSimpleType $(git grep -l '' -- '*.[ch]')

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Acked-by: Paul Durrant <paul@xen.org>
Message-Id: <20200916182519.415636-6-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>

backends/cryptodev-builtin.c

@@ -35,10 +35,7 @@
  */
 #define TYPE_CRYPTODEV_BACKEND_BUILTIN "cryptodev-backend-builtin"
 
-typedef struct CryptoDevBackendBuiltin
-                         CryptoDevBackendBuiltin;
-DECLARE_INSTANCE_CHECKER(CryptoDevBackendBuiltin, CRYPTODEV_BACKEND_BUILTIN,
-                         TYPE_CRYPTODEV_BACKEND_BUILTIN)
+OBJECT_DECLARE_SIMPLE_TYPE(CryptoDevBackendBuiltin, CRYPTODEV_BACKEND_BUILTIN)
 
 
 typedef struct CryptoDevBackendBuiltinSession {

backends/cryptodev-vhost-user.c

@@ -39,9 +39,7 @@
  */
 #define TYPE_CRYPTODEV_BACKEND_VHOST_USER "cryptodev-vhost-user"
 
-typedef struct CryptoDevBackendVhostUser CryptoDevBackendVhostUser;
-DECLARE_INSTANCE_CHECKER(CryptoDevBackendVhostUser, CRYPTODEV_BACKEND_VHOST_USER,
-                         TYPE_CRYPTODEV_BACKEND_VHOST_USER)
+OBJECT_DECLARE_SIMPLE_TYPE(CryptoDevBackendVhostUser, CRYPTODEV_BACKEND_VHOST_USER)
 
 
 struct CryptoDevBackendVhostUser {

backends/hostmem-file.c

@@ -19,9 +19,7 @@
 #include "qom/object_interfaces.h"
 #include "qom/object.h"
 
-typedef struct HostMemoryBackendFile HostMemoryBackendFile;
-DECLARE_INSTANCE_CHECKER(HostMemoryBackendFile, MEMORY_BACKEND_FILE,
-                         TYPE_MEMORY_BACKEND_FILE)
+OBJECT_DECLARE_SIMPLE_TYPE(HostMemoryBackendFile, MEMORY_BACKEND_FILE)
 
 
 struct HostMemoryBackendFile {

backends/hostmem-memfd.c

@@ -21,9 +21,7 @@
 
 #define TYPE_MEMORY_BACKEND_MEMFD "memory-backend-memfd"
 
-typedef struct HostMemoryBackendMemfd HostMemoryBackendMemfd;
-DECLARE_INSTANCE_CHECKER(HostMemoryBackendMemfd, MEMORY_BACKEND_MEMFD,
-                         TYPE_MEMORY_BACKEND_MEMFD)
+OBJECT_DECLARE_SIMPLE_TYPE(HostMemoryBackendMemfd, MEMORY_BACKEND_MEMFD)
 
 
 struct HostMemoryBackendMemfd {

backends/rng-builtin.c

@@ -11,9 +11,7 @@
 #include "qemu/guest-random.h"
 #include "qom/object.h"
 
-typedef struct RngBuiltin RngBuiltin;
-DECLARE_INSTANCE_CHECKER(RngBuiltin, RNG_BUILTIN,
-                         TYPE_RNG_BUILTIN)
+OBJECT_DECLARE_SIMPLE_TYPE(RngBuiltin, RNG_BUILTIN)
 
 struct RngBuiltin {
     RngBackend parent;

backends/rng-egd.c

@@ -19,9 +19,7 @@
 #include "qom/object.h"
 
 #define TYPE_RNG_EGD "rng-egd"
-typedef struct RngEgd RngEgd;
-DECLARE_INSTANCE_CHECKER(RngEgd, RNG_EGD,
-                         TYPE_RNG_EGD)
+OBJECT_DECLARE_SIMPLE_TYPE(RngEgd, RNG_EGD)
 
 struct RngEgd {
     RngBackend parent;

backends/tpm/tpm_emulator.c

@@ -45,9 +45,7 @@
 #include "qom/object.h"
 
 #define TYPE_TPM_EMULATOR "tpm-emulator"
-typedef struct TPMEmulator TPMEmulator;
-DECLARE_INSTANCE_CHECKER(TPMEmulator, TPM_EMULATOR,
-                         TYPE_TPM_EMULATOR)
+OBJECT_DECLARE_SIMPLE_TYPE(TPMEmulator, TPM_EMULATOR)
 
 #define TPM_EMULATOR_IMPLEMENTS_ALL_CAPS(S, cap) (((S)->caps & (cap)) == (cap))
 

backends/tpm/tpm_passthrough.c

@@ -36,9 +36,7 @@
 #include "qom/object.h"
 
 #define TYPE_TPM_PASSTHROUGH "tpm-passthrough"
-typedef struct TPMPassthruState TPMPassthruState;
-DECLARE_INSTANCE_CHECKER(TPMPassthruState, TPM_PASSTHROUGH,
-                         TYPE_TPM_PASSTHROUGH)
+OBJECT_DECLARE_SIMPLE_TYPE(TPMPassthruState, TPM_PASSTHROUGH)
 
 /* data structures */
 struct TPMPassthruState {

hw/9pfs/virtio-9p.h

@@ -13,10 +13,8 @@ struct V9fsVirtioState {
     VirtQueueElement *elems[MAX_REQ];
     V9fsState state;
 };
-typedef struct V9fsVirtioState V9fsVirtioState;
 
 #define TYPE_VIRTIO_9P "virtio-9p-device"
-DECLARE_INSTANCE_CHECKER(V9fsVirtioState, VIRTIO_9P,
-                         TYPE_VIRTIO_9P)
+OBJECT_DECLARE_SIMPLE_TYPE(V9fsVirtioState, VIRTIO_9P)
 
 #endif

hw/acpi/piix4.c

@@ -91,10 +91,8 @@ struct PIIX4PMState {
 
     MemHotplugState acpi_memory_hotplug;
 };
-typedef struct PIIX4PMState PIIX4PMState;
 
-DECLARE_INSTANCE_CHECKER(PIIX4PMState, PIIX4_PM,
-                         TYPE_PIIX4_PM)
+OBJECT_DECLARE_SIMPLE_TYPE(PIIX4PMState, PIIX4_PM)
 
 static void piix4_acpi_system_hot_add_init(MemoryRegion *parent,
                                            PCIBus *bus, PIIX4PMState *s);

hw/alpha/typhoon.c

@@ -50,9 +50,7 @@ typedef struct TyphoonPchip {
     TyphoonWindow win[4];
 } TyphoonPchip;
 
-typedef struct TyphoonState TyphoonState;
-DECLARE_INSTANCE_CHECKER(TyphoonState, TYPHOON_PCI_HOST_BRIDGE,
-                         TYPE_TYPHOON_PCI_HOST_BRIDGE)
+OBJECT_DECLARE_SIMPLE_TYPE(TyphoonState, TYPHOON_PCI_HOST_BRIDGE)
 
 struct TyphoonState {
     PCIHostState parent_obj;

hw/arm/collie.c

@@ -25,11 +25,9 @@ struct CollieMachineState {
 
     StrongARMState *sa1110;
 };
-typedef struct CollieMachineState CollieMachineState;
 
 #define TYPE_COLLIE_MACHINE MACHINE_TYPE_NAME("collie")
-DECLARE_INSTANCE_CHECKER(CollieMachineState, COLLIE_MACHINE,
-                         TYPE_COLLIE_MACHINE)
+OBJECT_DECLARE_SIMPLE_TYPE(CollieMachineState, COLLIE_MACHINE)
 
 static struct arm_boot_info collie_binfo = {
     .loader_start = SA_SDCS0,

hw/arm/highbank.c

@@ -156,9 +156,7 @@ static const MemoryRegionOps hb_mem_ops = {
 };
 
 #define TYPE_HIGHBANK_REGISTERS "highbank-regs"
-typedef struct HighbankRegsState HighbankRegsState;
-DECLARE_INSTANCE_CHECKER(HighbankRegsState, HIGHBANK_REGISTERS,
-                         TYPE_HIGHBANK_REGISTERS)
+OBJECT_DECLARE_SIMPLE_TYPE(HighbankRegsState, HIGHBANK_REGISTERS)
 
 struct HighbankRegsState {
     /*< private >*/

hw/arm/integratorcp.c

@@ -29,9 +29,7 @@
 #include "qom/object.h"
 
 #define TYPE_INTEGRATOR_CM "integrator_core"
-typedef struct IntegratorCMState IntegratorCMState;
-DECLARE_INSTANCE_CHECKER(IntegratorCMState, INTEGRATOR_CM,
-                         TYPE_INTEGRATOR_CM)
+OBJECT_DECLARE_SIMPLE_TYPE(IntegratorCMState, INTEGRATOR_CM)
 
 struct IntegratorCMState {
     /*< private >*/
@@ -328,9 +326,7 @@ static void integratorcm_realize(DeviceState *d, Error **errp)
 /* Primary interrupt controller.  */
 
 #define TYPE_INTEGRATOR_PIC "integrator_pic"
-typedef struct icp_pic_state icp_pic_state;
-DECLARE_INSTANCE_CHECKER(icp_pic_state, INTEGRATOR_PIC,
-                         TYPE_INTEGRATOR_PIC)
+OBJECT_DECLARE_SIMPLE_TYPE(icp_pic_state, INTEGRATOR_PIC)
 
 struct icp_pic_state {
     /*< private >*/
@@ -468,9 +464,7 @@ static void icp_pic_init(Object *obj)
 /* CP control registers.  */
 
 #define TYPE_ICP_CONTROL_REGS "icp-ctrl-regs"
-typedef struct ICPCtrlRegsState ICPCtrlRegsState;
-DECLARE_INSTANCE_CHECKER(ICPCtrlRegsState, ICP_CONTROL_REGS,
-                         TYPE_ICP_CONTROL_REGS)
+OBJECT_DECLARE_SIMPLE_TYPE(ICPCtrlRegsState, ICP_CONTROL_REGS)
 
 struct ICPCtrlRegsState {
     /*< private >*/

hw/arm/microbit.c

@@ -26,12 +26,10 @@ struct MicrobitMachineState {
     NRF51State nrf51;
     MicrobitI2CState i2c;
 };
-typedef struct MicrobitMachineState MicrobitMachineState;
 
 #define TYPE_MICROBIT_MACHINE MACHINE_TYPE_NAME("microbit")
 
-DECLARE_INSTANCE_CHECKER(MicrobitMachineState, MICROBIT_MACHINE,
-                         TYPE_MICROBIT_MACHINE)
+OBJECT_DECLARE_SIMPLE_TYPE(MicrobitMachineState, MICROBIT_MACHINE)
 
 static void microbit_init(MachineState *machine)
 {

hw/arm/musicpal.c

@@ -155,9 +155,7 @@ typedef struct mv88w8618_rx_desc {
 } mv88w8618_rx_desc;
 
 #define TYPE_MV88W8618_ETH "mv88w8618_eth"
-typedef struct mv88w8618_eth_state mv88w8618_eth_state;
-DECLARE_INSTANCE_CHECKER(mv88w8618_eth_state, MV88W8618_ETH,
-                         TYPE_MV88W8618_ETH)
+OBJECT_DECLARE_SIMPLE_TYPE(mv88w8618_eth_state, MV88W8618_ETH)
 
 struct mv88w8618_eth_state {
     /*< private >*/
@@ -485,9 +483,7 @@ static const TypeInfo mv88w8618_eth_info = {
 #define MP_LCD_TEXTCOLOR        0xe0e0ff /* RRGGBB */
 
 #define TYPE_MUSICPAL_LCD "musicpal_lcd"
-typedef struct musicpal_lcd_state musicpal_lcd_state;
-DECLARE_INSTANCE_CHECKER(musicpal_lcd_state, MUSICPAL_LCD,
-                         TYPE_MUSICPAL_LCD)
+OBJECT_DECLARE_SIMPLE_TYPE(musicpal_lcd_state, MUSICPAL_LCD)
 
 struct musicpal_lcd_state {
     /*< private >*/
@@ -703,9 +699,7 @@ static const TypeInfo musicpal_lcd_info = {
 #define MP_PIC_ENABLE_CLR       0x0C
 
 #define TYPE_MV88W8618_PIC "mv88w8618_pic"
-typedef struct mv88w8618_pic_state mv88w8618_pic_state;
-DECLARE_INSTANCE_CHECKER(mv88w8618_pic_state, MV88W8618_PIC,
-                         TYPE_MV88W8618_PIC)
+OBJECT_DECLARE_SIMPLE_TYPE(mv88w8618_pic_state, MV88W8618_PIC)
 
 struct mv88w8618_pic_state {
     /*< private >*/
@@ -841,9 +835,7 @@ typedef struct mv88w8618_timer_state {
 } mv88w8618_timer_state;
 
 #define TYPE_MV88W8618_PIT "mv88w8618_pit"
-typedef struct mv88w8618_pit_state mv88w8618_pit_state;
-DECLARE_INSTANCE_CHECKER(mv88w8618_pit_state, MV88W8618_PIT,
-                         TYPE_MV88W8618_PIT)
+OBJECT_DECLARE_SIMPLE_TYPE(mv88w8618_pit_state, MV88W8618_PIT)
 
 struct mv88w8618_pit_state {
     /*< private >*/
@@ -1009,9 +1001,7 @@ static const TypeInfo mv88w8618_pit_info = {
 #define MP_FLASHCFG_CFGR0    0x04
 
 #define TYPE_MV88W8618_FLASHCFG "mv88w8618_flashcfg"
-typedef struct mv88w8618_flashcfg_state mv88w8618_flashcfg_state;
-DECLARE_INSTANCE_CHECKER(mv88w8618_flashcfg_state, MV88W8618_FLASHCFG,
-                         TYPE_MV88W8618_FLASHCFG)
+OBJECT_DECLARE_SIMPLE_TYPE(mv88w8618_flashcfg_state, MV88W8618_FLASHCFG)
 
 struct mv88w8618_flashcfg_state {
     /*< private >*/
@@ -1100,11 +1090,9 @@ struct MusicPalMiscState {
     SysBusDevice parent_obj;
     MemoryRegion iomem;
 };
-typedef struct MusicPalMiscState MusicPalMiscState;
 
 #define TYPE_MUSICPAL_MISC "musicpal-misc"
-DECLARE_INSTANCE_CHECKER(MusicPalMiscState, MUSICPAL_MISC,
-                         TYPE_MUSICPAL_MISC)
+OBJECT_DECLARE_SIMPLE_TYPE(MusicPalMiscState, MUSICPAL_MISC)
 
 static uint64_t musicpal_misc_read(void *opaque, hwaddr offset,
                                    unsigned size)
@@ -1209,9 +1197,7 @@ static void mv88w8618_wlan_realize(DeviceState *dev, Error **errp)
 #define MP_OE_LCD_BRIGHTNESS    0x0007
 
 #define TYPE_MUSICPAL_GPIO "musicpal_gpio"
-typedef struct musicpal_gpio_state musicpal_gpio_state;
-DECLARE_INSTANCE_CHECKER(musicpal_gpio_state, MUSICPAL_GPIO,
-                         TYPE_MUSICPAL_GPIO)
+OBJECT_DECLARE_SIMPLE_TYPE(musicpal_gpio_state, MUSICPAL_GPIO)
 
 struct musicpal_gpio_state {
     /*< private >*/
@@ -1460,9 +1446,7 @@ static const TypeInfo musicpal_gpio_info = {
 #define MP_KEY_BTN_NAVIGATION  (1 << 7)
 
 #define TYPE_MUSICPAL_KEY "musicpal_key"
-typedef struct musicpal_key_state musicpal_key_state;
-DECLARE_INSTANCE_CHECKER(musicpal_key_state, MUSICPAL_KEY,
-                         TYPE_MUSICPAL_KEY)
+OBJECT_DECLARE_SIMPLE_TYPE(musicpal_key_state, MUSICPAL_KEY)
 
 struct musicpal_key_state {
     /*< private >*/

hw/arm/palm.c

@@ -133,9 +133,7 @@ static void palmte_button_event(void *opaque, int keycode)
  */
 
 #define TYPE_PALM_MISC_GPIO "palm-misc-gpio"
-typedef struct PalmMiscGPIOState PalmMiscGPIOState;
-DECLARE_INSTANCE_CHECKER(PalmMiscGPIOState, PALM_MISC_GPIO,
-                         TYPE_PALM_MISC_GPIO)
+OBJECT_DECLARE_SIMPLE_TYPE(PalmMiscGPIOState, PALM_MISC_GPIO)
 
 struct PalmMiscGPIOState {
     SysBusDevice parent_obj;

hw/arm/pxa2xx.c

@@ -470,9 +470,7 @@ static const VMStateDescription vmstate_pxa2xx_mm = {
 };
 
 #define TYPE_PXA2XX_SSP "pxa2xx-ssp"
-typedef struct PXA2xxSSPState PXA2xxSSPState;
-DECLARE_INSTANCE_CHECKER(PXA2xxSSPState, PXA2XX_SSP,
-                         TYPE_PXA2XX_SSP)
+OBJECT_DECLARE_SIMPLE_TYPE(PXA2xxSSPState, PXA2XX_SSP)
 
 /* Synchronous Serial Ports */
 struct PXA2xxSSPState {
@@ -811,9 +809,7 @@ static void pxa2xx_ssp_init(Object *obj)
 #define PIAR		0x38	/* RTC Periodic Interrupt Alarm register */
 
 #define TYPE_PXA2XX_RTC "pxa2xx_rtc"
-typedef struct PXA2xxRTCState PXA2xxRTCState;
-DECLARE_INSTANCE_CHECKER(PXA2xxRTCState, PXA2XX_RTC,
-                         TYPE_PXA2XX_RTC)
+OBJECT_DECLARE_SIMPLE_TYPE(PXA2xxRTCState, PXA2XX_RTC)
 
 struct PXA2xxRTCState {
     /*< private >*/
@@ -1245,9 +1241,7 @@ static const TypeInfo pxa2xx_rtc_sysbus_info = {
 /* I2C Interface */
 
 #define TYPE_PXA2XX_I2C_SLAVE "pxa2xx-i2c-slave"
-typedef struct PXA2xxI2CSlaveState PXA2xxI2CSlaveState;
-DECLARE_INSTANCE_CHECKER(PXA2xxI2CSlaveState, PXA2XX_I2C_SLAVE,
-                         TYPE_PXA2XX_I2C_SLAVE)
+OBJECT_DECLARE_SIMPLE_TYPE(PXA2xxI2CSlaveState, PXA2XX_I2C_SLAVE)
 
 struct PXA2xxI2CSlaveState {
     I2CSlave parent_obj;

hw/arm/pxa2xx_gpio.c

@@ -22,9 +22,7 @@
 #define PXA2XX_GPIO_BANKS	4
 
 #define TYPE_PXA2XX_GPIO "pxa2xx-gpio"
-typedef struct PXA2xxGPIOInfo PXA2xxGPIOInfo;
-DECLARE_INSTANCE_CHECKER(PXA2xxGPIOInfo, PXA2XX_GPIO,
-                         TYPE_PXA2XX_GPIO)
+OBJECT_DECLARE_SIMPLE_TYPE(PXA2xxGPIOInfo, PXA2XX_GPIO)
 
 struct PXA2xxGPIOInfo {
     /*< private >*/

hw/arm/pxa2xx_pic.c

@@ -38,9 +38,7 @@
 #define PXA2XX_PIC_SRCS	40
 
 #define TYPE_PXA2XX_PIC "pxa2xx_pic"
-typedef struct PXA2xxPICState PXA2xxPICState;
-DECLARE_INSTANCE_CHECKER(PXA2xxPICState, PXA2XX_PIC,
-                         TYPE_PXA2XX_PIC)
+OBJECT_DECLARE_SIMPLE_TYPE(PXA2xxPICState, PXA2XX_PIC)
 
 struct PXA2xxPICState {
     /*< private >*/

hw/arm/sbsa-ref.c

@@ -95,11 +95,9 @@ struct SBSAMachineState {
     DeviceState *gic;
     PFlashCFI01 *flash[2];
 };
-typedef struct SBSAMachineState SBSAMachineState;
 
 #define TYPE_SBSA_MACHINE   MACHINE_TYPE_NAME("sbsa-ref")
-DECLARE_INSTANCE_CHECKER(SBSAMachineState, SBSA_MACHINE,
-                         TYPE_SBSA_MACHINE)
+OBJECT_DECLARE_SIMPLE_TYPE(SBSAMachineState, SBSA_MACHINE)
 
 static const MemMapEntry sbsa_ref_memmap[] = {
     /* 512M boot ROM */

hw/arm/spitz.c

@@ -81,9 +81,7 @@ OBJECT_DECLARE_TYPE(SpitzMachineState, SpitzMachineClass, SPITZ_MACHINE)
 #define FLASHCTL_NCE            (FLASHCTL_CE0 | FLASHCTL_CE1)
 
 #define TYPE_SL_NAND "sl-nand"
-typedef struct SLNANDState SLNANDState;
-DECLARE_INSTANCE_CHECKER(SLNANDState, SL_NAND,
-                         TYPE_SL_NAND)
+OBJECT_DECLARE_SIMPLE_TYPE(SLNANDState, SL_NAND)
 
 struct SLNANDState {
     SysBusDevice parent_obj;
@@ -259,9 +257,7 @@ static const int spitz_gpiomap[5] = {
 };
 
 #define TYPE_SPITZ_KEYBOARD "spitz-keyboard"
-typedef struct SpitzKeyboardState SpitzKeyboardState;
-DECLARE_INSTANCE_CHECKER(SpitzKeyboardState, SPITZ_KEYBOARD,
-                         TYPE_SPITZ_KEYBOARD)
+OBJECT_DECLARE_SIMPLE_TYPE(SpitzKeyboardState, SPITZ_KEYBOARD)
 
 struct SpitzKeyboardState {
     SysBusDevice parent_obj;
@@ -579,9 +575,7 @@ static void spitz_keyboard_realize(DeviceState *dev, Error **errp)
 #define LCDTG_POLCTRL   0x07
 
 #define TYPE_SPITZ_LCDTG "spitz-lcdtg"
-typedef struct SpitzLCDTG SpitzLCDTG;
-DECLARE_INSTANCE_CHECKER(SpitzLCDTG, SPITZ_LCDTG,
-                         TYPE_SPITZ_LCDTG)
+OBJECT_DECLARE_SIMPLE_TYPE(SpitzLCDTG, SPITZ_LCDTG)
 
 struct SpitzLCDTG {
     SSISlave ssidev;
@@ -669,9 +663,7 @@ static void spitz_lcdtg_realize(SSISlave *ssi, Error **errp)
 #define SPITZ_GPIO_TP_INT       11
 
 #define TYPE_CORGI_SSP "corgi-ssp"
-typedef struct CorgiSSPState CorgiSSPState;
-DECLARE_INSTANCE_CHECKER(CorgiSSPState, CORGI_SSP,
-                         TYPE_CORGI_SSP)
+OBJECT_DECLARE_SIMPLE_TYPE(CorgiSSPState, CORGI_SSP)
 
 /* "Demux" the signal based on current chipselect */
 struct CorgiSSPState {
@@ -822,9 +814,7 @@ static void spitz_akita_i2c_setup(PXA2xxState *cpu)
  *  + named GPIO output "adc-temp": the ADC value, to be wired up to the max111x
  */
 #define TYPE_SPITZ_MISC_GPIO "spitz-misc-gpio"
-typedef struct SpitzMiscGPIOState SpitzMiscGPIOState;
-DECLARE_INSTANCE_CHECKER(SpitzMiscGPIOState, SPITZ_MISC_GPIO,
-                         TYPE_SPITZ_MISC_GPIO)
+OBJECT_DECLARE_SIMPLE_TYPE(SpitzMiscGPIOState, SPITZ_MISC_GPIO)
 
 struct SpitzMiscGPIOState {
     SysBusDevice parent_obj;

hw/arm/stellaris.c

@@ -58,9 +58,7 @@ typedef const struct {
 /* General purpose timer module.  */
 
 #define TYPE_STELLARIS_GPTM "stellaris-gptm"
-typedef struct gptm_state gptm_state;
-DECLARE_INSTANCE_CHECKER(gptm_state, STELLARIS_GPTM,
-                         TYPE_STELLARIS_GPTM)
+OBJECT_DECLARE_SIMPLE_TYPE(gptm_state, STELLARIS_GPTM)
 
 struct gptm_state {
     SysBusDevice parent_obj;
@@ -721,9 +719,7 @@ static int stellaris_sys_init(uint32_t base, qemu_irq irq,
 /* I2C controller.  */
 
 #define TYPE_STELLARIS_I2C "stellaris-i2c"
-typedef struct stellaris_i2c_state stellaris_i2c_state;
-DECLARE_INSTANCE_CHECKER(stellaris_i2c_state, STELLARIS_I2C,
-                         TYPE_STELLARIS_I2C)
+OBJECT_DECLARE_SIMPLE_TYPE(stellaris_i2c_state, STELLARIS_I2C)
 
 struct stellaris_i2c_state {
     SysBusDevice parent_obj;

hw/arm/strongarm.c

@@ -85,9 +85,7 @@ static struct {
 /* Interrupt Controller */
 
 #define TYPE_STRONGARM_PIC "strongarm_pic"
-typedef struct StrongARMPICState StrongARMPICState;
-DECLARE_INSTANCE_CHECKER(StrongARMPICState, STRONGARM_PIC,
-                         TYPE_STRONGARM_PIC)
+OBJECT_DECLARE_SIMPLE_TYPE(StrongARMPICState, STRONGARM_PIC)
 
 struct StrongARMPICState {
     SysBusDevice parent_obj;
@@ -254,9 +252,7 @@ static const TypeInfo strongarm_pic_info = {
  * f = 32 768 / (RTTR_trim + 1) */
 
 #define TYPE_STRONGARM_RTC "strongarm-rtc"
-typedef struct StrongARMRTCState StrongARMRTCState;
-DECLARE_INSTANCE_CHECKER(StrongARMRTCState, STRONGARM_RTC,
-                         TYPE_STRONGARM_RTC)
+OBJECT_DECLARE_SIMPLE_TYPE(StrongARMRTCState, STRONGARM_RTC)
 
 struct StrongARMRTCState {
     SysBusDevice parent_obj;
@@ -481,9 +477,7 @@ static const TypeInfo strongarm_rtc_sysbus_info = {
 #define GAFR 0x1c
 
 #define TYPE_STRONGARM_GPIO "strongarm-gpio"
-typedef struct StrongARMGPIOInfo StrongARMGPIOInfo;
-DECLARE_INSTANCE_CHECKER(StrongARMGPIOInfo, STRONGARM_GPIO,
-                         TYPE_STRONGARM_GPIO)
+OBJECT_DECLARE_SIMPLE_TYPE(StrongARMGPIOInfo, STRONGARM_GPIO)
 
 struct StrongARMGPIOInfo {
     SysBusDevice busdev;
@@ -720,9 +714,7 @@ static const TypeInfo strongarm_gpio_info = {
 #define PPFR 0x10
 
 #define TYPE_STRONGARM_PPC "strongarm-ppc"
-typedef struct StrongARMPPCInfo StrongARMPPCInfo;
-DECLARE_INSTANCE_CHECKER(StrongARMPPCInfo, STRONGARM_PPC,
-                         TYPE_STRONGARM_PPC)
+OBJECT_DECLARE_SIMPLE_TYPE(StrongARMPPCInfo, STRONGARM_PPC)
 
 struct StrongARMPPCInfo {
     SysBusDevice parent_obj;
@@ -921,9 +913,7 @@ static const TypeInfo strongarm_ppc_info = {
 #define RX_FIFO_ROR (1 << 10)
 
 #define TYPE_STRONGARM_UART "strongarm-uart"
-typedef struct StrongARMUARTState StrongARMUARTState;
-DECLARE_INSTANCE_CHECKER(StrongARMUARTState, STRONGARM_UART,
-                         TYPE_STRONGARM_UART)
+OBJECT_DECLARE_SIMPLE_TYPE(StrongARMUARTState, STRONGARM_UART)
 
 struct StrongARMUARTState {
     SysBusDevice parent_obj;
@@ -1353,9 +1343,7 @@ static const TypeInfo strongarm_uart_info = {
 /* Synchronous Serial Ports */
 
 #define TYPE_STRONGARM_SSP "strongarm-ssp"
-typedef struct StrongARMSSPState StrongARMSSPState;
-DECLARE_INSTANCE_CHECKER(StrongARMSSPState, STRONGARM_SSP,
-                         TYPE_STRONGARM_SSP)
+OBJECT_DECLARE_SIMPLE_TYPE(StrongARMSSPState, STRONGARM_SSP)
 
 struct StrongARMSSPState {
     SysBusDevice parent_obj;

hw/arm/tosa.c

@@ -75,9 +75,7 @@ static void tosa_microdrive_attach(PXA2xxState *cpu)
  */
 
 #define TYPE_TOSA_MISC_GPIO "tosa-misc-gpio"
-typedef struct TosaMiscGPIOState TosaMiscGPIOState;
-DECLARE_INSTANCE_CHECKER(TosaMiscGPIOState, TOSA_MISC_GPIO,
-                         TYPE_TOSA_MISC_GPIO)
+OBJECT_DECLARE_SIMPLE_TYPE(TosaMiscGPIOState, TOSA_MISC_GPIO)
 
 struct TosaMiscGPIOState {
     SysBusDevice parent_obj;
@@ -172,9 +170,7 @@ static void tosa_ssp_realize(SSISlave *dev, Error **errp)
 }
 
 #define TYPE_TOSA_DAC "tosa_dac"
-typedef struct TosaDACState TosaDACState;
-DECLARE_INSTANCE_CHECKER(TosaDACState, TOSA_DAC,
-                         TYPE_TOSA_DAC)
+OBJECT_DECLARE_SIMPLE_TYPE(TosaDACState, TOSA_DAC)
 
 struct TosaDACState {
     I2CSlave parent_obj;

hw/arm/versatilepb.c

@@ -35,9 +35,7 @@
 /* Primary interrupt controller.  */
 
 #define TYPE_VERSATILE_PB_SIC "versatilepb_sic"
-typedef struct vpb_sic_state vpb_sic_state;
-DECLARE_INSTANCE_CHECKER(vpb_sic_state, VERSATILE_PB_SIC,
-                         TYPE_VERSATILE_PB_SIC)
+OBJECT_DECLARE_SIMPLE_TYPE(vpb_sic_state, VERSATILE_PB_SIC)
 
 struct vpb_sic_state {
     SysBusDevice parent_obj;

hw/arm/xilinx_zynq.c

@@ -40,9 +40,7 @@
 #include "qom/object.h"
 
 #define TYPE_ZYNQ_MACHINE MACHINE_TYPE_NAME("xilinx-zynq-a9")
-typedef struct ZynqMachineState ZynqMachineState;
-DECLARE_INSTANCE_CHECKER(ZynqMachineState, ZYNQ_MACHINE,
-                         TYPE_ZYNQ_MACHINE)
+OBJECT_DECLARE_SIMPLE_TYPE(ZynqMachineState, ZYNQ_MACHINE)
 
 /* board base frequency: 33.333333 MHz */
 #define PS_CLK_FREQUENCY (100 * 1000 * 1000 / 3)

hw/arm/xlnx-versal-virt.c

@@ -25,9 +25,7 @@
 #include "qom/object.h"
 
 #define TYPE_XLNX_VERSAL_VIRT_MACHINE MACHINE_TYPE_NAME("xlnx-versal-virt")
-typedef struct VersalVirt VersalVirt;
-DECLARE_INSTANCE_CHECKER(VersalVirt, XLNX_VERSAL_VIRT_MACHINE,
-                         TYPE_XLNX_VERSAL_VIRT_MACHINE)
+OBJECT_DECLARE_SIMPLE_TYPE(VersalVirt, XLNX_VERSAL_VIRT_MACHINE)
 
 struct VersalVirt {
     MachineState parent_obj;

hw/arm/xlnx-zcu102.c

@@ -36,11 +36,9 @@ struct XlnxZCU102 {
 
     struct arm_boot_info binfo;
 };
-typedef struct XlnxZCU102 XlnxZCU102;
 
 #define TYPE_ZCU102_MACHINE   MACHINE_TYPE_NAME("xlnx-zcu102")
-DECLARE_INSTANCE_CHECKER(XlnxZCU102, ZCU102_MACHINE,
-                         TYPE_ZCU102_MACHINE)
+OBJECT_DECLARE_SIMPLE_TYPE(XlnxZCU102, ZCU102_MACHINE)
 
 
 static bool zcu102_get_secure(Object *obj, Error **errp)

hw/arm/z2.c

@@ -111,11 +111,9 @@ struct ZipitLCD {
     uint32_t cur_reg;
     int pos;
 };
-typedef struct ZipitLCD ZipitLCD;
 
 #define TYPE_ZIPIT_LCD "zipit-lcd"
-DECLARE_INSTANCE_CHECKER(ZipitLCD, ZIPIT_LCD,
-                         TYPE_ZIPIT_LCD)
+OBJECT_DECLARE_SIMPLE_TYPE(ZipitLCD, ZIPIT_LCD)
 
 static uint32_t zipit_lcd_transfer(SSISlave *dev, uint32_t value)
 {
@@ -198,9 +196,7 @@ static const TypeInfo zipit_lcd_info = {
 };
 
 #define TYPE_AER915 "aer915"
-typedef struct AER915State AER915State;
-DECLARE_INSTANCE_CHECKER(AER915State, AER915,
-                         TYPE_AER915)
+OBJECT_DECLARE_SIMPLE_TYPE(AER915State, AER915)
 
 struct AER915State {
     I2CSlave parent_obj;

hw/audio/ac97.c

@@ -127,9 +127,7 @@ enum {
 #define MUTE_SHIFT 15
 
 #define TYPE_AC97 "AC97"
-typedef struct AC97LinkState AC97LinkState;
-DECLARE_INSTANCE_CHECKER(AC97LinkState, AC97,
-                         TYPE_AC97)
+OBJECT_DECLARE_SIMPLE_TYPE(AC97LinkState, AC97)
 
 #define REC_MASK 7
 enum {

hw/audio/adlib.c

@@ -52,9 +52,7 @@
 #define SHIFT 1
 
 #define TYPE_ADLIB "adlib"
-typedef struct AdlibState AdlibState;
-DECLARE_INSTANCE_CHECKER(AdlibState, ADLIB,
-                         TYPE_ADLIB)
+OBJECT_DECLARE_SIMPLE_TYPE(AdlibState, ADLIB)
 
 struct AdlibState {
     ISADevice parent_obj;

hw/audio/es1370.c

@@ -293,8 +293,7 @@ struct chan_bits {
 };
 
 #define TYPE_ES1370 "ES1370"
-DECLARE_INSTANCE_CHECKER(ES1370State, ES1370,
-                         TYPE_ES1370)
+OBJECT_DECLARE_SIMPLE_TYPE(ES1370State, ES1370)
 
 static void es1370_dac1_calc_freq (ES1370State *s, uint32_t ctl,
                                    uint32_t *old_freq, uint32_t *new_freq);

hw/audio/gus.c

@@ -43,9 +43,7 @@
 #endif
 
 #define TYPE_GUS "gus"
-typedef struct GUSState GUSState;
-DECLARE_INSTANCE_CHECKER(GUSState, GUS,
-                         TYPE_GUS)
+OBJECT_DECLARE_SIMPLE_TYPE(GUSState, GUS)
 
 struct GUSState {
     ISADevice dev;

hw/audio/hda-codec.c

@@ -172,8 +172,7 @@ struct HDAAudioStream {
 };
 
 #define TYPE_HDA_AUDIO "hda-audio"
-DECLARE_INSTANCE_CHECKER(HDAAudioState, HDA_AUDIO,
-                         TYPE_HDA_AUDIO)
+OBJECT_DECLARE_SIMPLE_TYPE(HDAAudioState, HDA_AUDIO)
 
 struct HDAAudioState {
     HDACodecDevice hda;

hw/audio/intel-hda.h

@@ -12,9 +12,7 @@ OBJECT_DECLARE_TYPE(HDACodecDevice, HDACodecDeviceClass,
                     HDA_CODEC_DEVICE)
 
 #define TYPE_HDA_BUS "HDA"
-typedef struct HDACodecBus HDACodecBus;
-DECLARE_INSTANCE_CHECKER(HDACodecBus, HDA_BUS,
-                         TYPE_HDA_BUS)
+OBJECT_DECLARE_SIMPLE_TYPE(HDACodecBus, HDA_BUS)
 
 
 typedef void (*hda_codec_response_func)(HDACodecDevice *dev,

hw/audio/marvell_88w8618.c

@@ -43,9 +43,7 @@
 #define MP_AUDIO_CLOCK_24MHZ    (1 << 9)
 #define MP_AUDIO_MONO           (1 << 14)
 
-typedef struct mv88w8618_audio_state mv88w8618_audio_state;
-DECLARE_INSTANCE_CHECKER(mv88w8618_audio_state, MV88W8618_AUDIO,
-                         TYPE_MV88W8618_AUDIO)
+OBJECT_DECLARE_SIMPLE_TYPE(mv88w8618_audio_state, MV88W8618_AUDIO)
 
 struct mv88w8618_audio_state {
     SysBusDevice parent_obj;

hw/audio/milkymist-ac97.c

@@ -56,9 +56,7 @@ enum {
 };
 
 #define TYPE_MILKYMIST_AC97 "milkymist-ac97"
-typedef struct MilkymistAC97State MilkymistAC97State;
-DECLARE_INSTANCE_CHECKER(MilkymistAC97State, MILKYMIST_AC97,
-                         TYPE_MILKYMIST_AC97)
+OBJECT_DECLARE_SIMPLE_TYPE(MilkymistAC97State, MILKYMIST_AC97)
 
 struct MilkymistAC97State {
     SysBusDevice parent_obj;

hw/audio/pcspk.c

@@ -40,9 +40,7 @@
 #define PCSPK_MAX_FREQ (PCSPK_SAMPLE_RATE >> 1)
 #define PCSPK_MIN_COUNT DIV_ROUND_UP(PIT_FREQ, PCSPK_MAX_FREQ)
 
-typedef struct PCSpkState PCSpkState;
-DECLARE_INSTANCE_CHECKER(PCSpkState, PC_SPEAKER,
-                         TYPE_PC_SPEAKER)
+OBJECT_DECLARE_SIMPLE_TYPE(PCSpkState, PC_SPEAKER)
 
 struct PCSpkState {
     ISADevice parent_obj;

hw/audio/pl041.c

@@ -78,9 +78,7 @@ typedef struct {
 } pl041_channel;
 
 #define TYPE_PL041 "pl041"
-typedef struct PL041State PL041State;
-DECLARE_INSTANCE_CHECKER(PL041State, PL041,
-                         TYPE_PL041)
+OBJECT_DECLARE_SIMPLE_TYPE(PL041State, PL041)
 
 struct PL041State {
     SysBusDevice parent_obj;

hw/audio/sb16.c

@@ -50,9 +50,7 @@
 static const char e3[] = "COPYRIGHT (C) CREATIVE TECHNOLOGY LTD, 1992.";
 
 #define TYPE_SB16 "sb16"
-typedef struct SB16State SB16State;
-DECLARE_INSTANCE_CHECKER(SB16State, SB16,
-                         TYPE_SB16)
+OBJECT_DECLARE_SIMPLE_TYPE(SB16State, SB16)
 
 struct SB16State {
     ISADevice parent_obj;

hw/audio/wm8750.c

@@ -27,9 +27,7 @@ typedef struct {
     int dac_hz;
 } WMRate;
 
-typedef struct WM8750State WM8750State;
-DECLARE_INSTANCE_CHECKER(WM8750State, WM8750,
-                         TYPE_WM8750)
+OBJECT_DECLARE_SIMPLE_TYPE(WM8750State, WM8750)
 
 struct WM8750State {
     I2CSlave parent_obj;

hw/block/fdc.c

@@ -65,9 +65,7 @@
 /* qdev floppy bus                                      */
 
 #define TYPE_FLOPPY_BUS "floppy-bus"
-typedef struct FloppyBus FloppyBus;
-DECLARE_INSTANCE_CHECKER(FloppyBus, FLOPPY_BUS,
-                         TYPE_FLOPPY_BUS)
+OBJECT_DECLARE_SIMPLE_TYPE(FloppyBus, FLOPPY_BUS)
 
 typedef struct FDCtrl FDCtrl;
 typedef struct FDrive FDrive;
@@ -497,9 +495,7 @@ static const BlockDevOps fd_block_ops = {
 
 
 #define TYPE_FLOPPY_DRIVE "floppy"
-typedef struct FloppyDrive FloppyDrive;
-DECLARE_INSTANCE_CHECKER(FloppyDrive, FLOPPY_DRIVE,
-                         TYPE_FLOPPY_DRIVE)
+OBJECT_DECLARE_SIMPLE_TYPE(FloppyDrive, FLOPPY_DRIVE)
 
 struct FloppyDrive {
     DeviceState     qdev;
@@ -890,9 +886,7 @@ static FloppyDriveType get_fallback_drive_type(FDrive *drv)
 }
 
 #define TYPE_SYSBUS_FDC "base-sysbus-fdc"
-typedef struct FDCtrlSysBus FDCtrlSysBus;
-DECLARE_INSTANCE_CHECKER(FDCtrlSysBus, SYSBUS_FDC,
-                         TYPE_SYSBUS_FDC)
+OBJECT_DECLARE_SIMPLE_TYPE(FDCtrlSysBus, SYSBUS_FDC)
 
 struct FDCtrlSysBus {
     /*< private >*/
@@ -902,9 +896,7 @@ struct FDCtrlSysBus {
     struct FDCtrl state;
 };
 
-typedef struct FDCtrlISABus FDCtrlISABus;
-DECLARE_INSTANCE_CHECKER(FDCtrlISABus, ISA_FDC,
-                         TYPE_ISA_FDC)
+OBJECT_DECLARE_SIMPLE_TYPE(FDCtrlISABus, ISA_FDC)
 
 struct FDCtrlISABus {
     ISADevice parent_obj;

hw/block/nand.c

@@ -90,8 +90,7 @@ struct NANDFlashState {
 
 #define TYPE_NAND "nand"
 
-DECLARE_INSTANCE_CHECKER(NANDFlashState, NAND,
-                         TYPE_NAND)
+OBJECT_DECLARE_SIMPLE_TYPE(NANDFlashState, NAND)
 
 static void mem_and(uint8_t *dest, const uint8_t *src, size_t n)
 {

hw/block/onenand.c

@@ -40,9 +40,7 @@
 #define BLOCK_SHIFT	(PAGE_SHIFT + 6)
 
 #define TYPE_ONE_NAND "onenand"
-typedef struct OneNANDState OneNANDState;
-DECLARE_INSTANCE_CHECKER(OneNANDState, ONE_NAND,
-                         TYPE_ONE_NAND)
+OBJECT_DECLARE_SIMPLE_TYPE(OneNANDState, ONE_NAND)
 
 struct OneNANDState {
     SysBusDevice parent_obj;

hw/char/debugcon.c

@@ -33,9 +33,7 @@
 #include "qom/object.h"
 
 #define TYPE_ISA_DEBUGCON_DEVICE "isa-debugcon"
-typedef struct ISADebugconState ISADebugconState;
-DECLARE_INSTANCE_CHECKER(ISADebugconState, ISA_DEBUGCON_DEVICE,
-                         TYPE_ISA_DEBUGCON_DEVICE)
+OBJECT_DECLARE_SIMPLE_TYPE(ISADebugconState, ISA_DEBUGCON_DEVICE)
 
 //#define DEBUG_DEBUGCON
 

hw/char/exynos4210_uart.c

@@ -139,9 +139,7 @@ typedef struct {
 } Exynos4210UartFIFO;
 
 #define TYPE_EXYNOS4210_UART "exynos4210.uart"
-typedef struct Exynos4210UartState Exynos4210UartState;
-DECLARE_INSTANCE_CHECKER(Exynos4210UartState, EXYNOS4210_UART,
-                         TYPE_EXYNOS4210_UART)
+OBJECT_DECLARE_SIMPLE_TYPE(Exynos4210UartState, EXYNOS4210_UART)
 
 struct Exynos4210UartState {
     SysBusDevice parent_obj;

hw/char/grlib_apbuart.c

@@ -73,9 +73,7 @@
 
 #define FIFO_LENGTH 1024
 
-typedef struct UART UART;
-DECLARE_INSTANCE_CHECKER(UART, GRLIB_APB_UART,
-                         TYPE_GRLIB_APB_UART)
+OBJECT_DECLARE_SIMPLE_TYPE(UART, GRLIB_APB_UART)
 
 struct UART {
     SysBusDevice parent_obj;

hw/char/ipoctal232.c

@@ -123,8 +123,7 @@ struct IPOctalState {
 
 #define TYPE_IPOCTAL "ipoctal232"
 
-DECLARE_INSTANCE_CHECKER(IPOctalState, IPOCTAL,
-                         TYPE_IPOCTAL)
+OBJECT_DECLARE_SIMPLE_TYPE(IPOctalState, IPOCTAL)
 
 static const VMStateDescription vmstate_scc2698_channel = {
     .name = "scc2698_channel",

hw/char/lm32_juart.c

@@ -42,9 +42,7 @@ enum {
     JRX_FULL = (1<<8),
 };
 
-typedef struct LM32JuartState LM32JuartState;
-DECLARE_INSTANCE_CHECKER(LM32JuartState, LM32_JUART,
-                         TYPE_LM32_JUART)
+OBJECT_DECLARE_SIMPLE_TYPE(LM32JuartState, LM32_JUART)
 
 struct LM32JuartState {
     SysBusDevice parent_obj;

hw/char/lm32_uart.c

@@ -95,9 +95,7 @@ enum {
 };
 
 #define TYPE_LM32_UART "lm32-uart"
-typedef struct LM32UartState LM32UartState;
-DECLARE_INSTANCE_CHECKER(LM32UartState, LM32_UART,
-                         TYPE_LM32_UART)
+OBJECT_DECLARE_SIMPLE_TYPE(LM32UartState, LM32_UART)
 
 struct LM32UartState {
     SysBusDevice parent_obj;

hw/char/mcf_uart.c

@@ -35,11 +35,9 @@ struct mcf_uart_state {
     qemu_irq irq;
     CharBackend chr;
 };
-typedef struct mcf_uart_state mcf_uart_state;
 
 #define TYPE_MCF_UART "mcf-uart"
-DECLARE_INSTANCE_CHECKER(mcf_uart_state, MCF_UART,
-                         TYPE_MCF_UART)
+OBJECT_DECLARE_SIMPLE_TYPE(mcf_uart_state, MCF_UART)
 
 /* UART Status Register bits.  */
 #define MCF_UART_RxRDY  0x01

hw/char/milkymist-uart.c

@@ -58,9 +58,7 @@ enum {
 };
 
 #define TYPE_MILKYMIST_UART "milkymist-uart"
-typedef struct MilkymistUartState MilkymistUartState;
-DECLARE_INSTANCE_CHECKER(MilkymistUartState, MILKYMIST_UART,
-                         TYPE_MILKYMIST_UART)
+OBJECT_DECLARE_SIMPLE_TYPE(MilkymistUartState, MILKYMIST_UART)
 
 struct MilkymistUartState {
     SysBusDevice parent_obj;

hw/char/parallel.c

@@ -93,9 +93,7 @@ typedef struct ParallelState {
 } ParallelState;
 
 #define TYPE_ISA_PARALLEL "isa-parallel"
-typedef struct ISAParallelState ISAParallelState;
-DECLARE_INSTANCE_CHECKER(ISAParallelState, ISA_PARALLEL,
-                         TYPE_ISA_PARALLEL)
+OBJECT_DECLARE_SIMPLE_TYPE(ISAParallelState, ISA_PARALLEL)
 
 struct ISAParallelState {
     ISADevice parent_obj;

hw/char/serial-isa.c

@@ -34,9 +34,7 @@
 #include "migration/vmstate.h"
 #include "qom/object.h"
 
-typedef struct ISASerialState ISASerialState;
-DECLARE_INSTANCE_CHECKER(ISASerialState, ISA_SERIAL,
-                         TYPE_ISA_SERIAL)
+OBJECT_DECLARE_SIMPLE_TYPE(ISASerialState, ISA_SERIAL)
 
 struct ISASerialState {
     ISADevice parent_obj;

hw/char/serial-pci.c

@@ -40,11 +40,9 @@ struct PCISerialState {
     SerialState state;
     uint8_t prog_if;
 };
-typedef struct PCISerialState PCISerialState;
 
 #define TYPE_PCI_SERIAL "pci-serial"
-DECLARE_INSTANCE_CHECKER(PCISerialState, PCI_SERIAL,
-                         TYPE_PCI_SERIAL)
+OBJECT_DECLARE_SIMPLE_TYPE(PCISerialState, PCI_SERIAL)
 
 static void serial_pci_realize(PCIDevice *dev, Error **errp)
 {

hw/char/spapr_vty.c

@@ -18,11 +18,9 @@ struct SpaprVioVty {
     uint32_t in, out;
     uint8_t buf[VTERM_BUFSIZE];
 };
-typedef struct SpaprVioVty SpaprVioVty;
 
 #define TYPE_VIO_SPAPR_VTY_DEVICE "spapr-vty"
-DECLARE_INSTANCE_CHECKER(SpaprVioVty, VIO_SPAPR_VTY_DEVICE,
-                         TYPE_VIO_SPAPR_VTY_DEVICE)
+OBJECT_DECLARE_SIMPLE_TYPE(SpaprVioVty, VIO_SPAPR_VTY_DEVICE)
 
 static int vty_can_receive(void *opaque)
 {

hw/char/xilinx_uartlite.c

@@ -53,9 +53,7 @@
 #define CONTROL_IE        0x10
 
 #define TYPE_XILINX_UARTLITE "xlnx.xps-uartlite"
-typedef struct XilinxUARTLite XilinxUARTLite;
-DECLARE_INSTANCE_CHECKER(XilinxUARTLite, XILINX_UARTLITE,
-                         TYPE_XILINX_UARTLITE)
+OBJECT_DECLARE_SIMPLE_TYPE(XilinxUARTLite, XILINX_UARTLITE)
 
 struct XilinxUARTLite {
     SysBusDevice parent_obj;

hw/cpu/realview_mpcore.c

@@ -18,9 +18,7 @@
 #include "qom/object.h"
 
 #define TYPE_REALVIEW_MPCORE_RIRQ "realview_mpcore"
-typedef struct mpcore_rirq_state mpcore_rirq_state;
-DECLARE_INSTANCE_CHECKER(mpcore_rirq_state, REALVIEW_MPCORE_RIRQ,
-                         TYPE_REALVIEW_MPCORE_RIRQ)
+OBJECT_DECLARE_SIMPLE_TYPE(mpcore_rirq_state, REALVIEW_MPCORE_RIRQ)
 
 /* Dummy PIC to route IRQ lines.  The baseboard has 4 independent IRQ
    controllers.  The output of these, plus some of the raw input lines

hw/display/ads7846.c

@@ -29,11 +29,9 @@ struct ADS7846State {
     int cycle;
     int output;
 };
-typedef struct ADS7846State ADS7846State;
 
 #define TYPE_ADS7846 "ads7846"
-DECLARE_INSTANCE_CHECKER(ADS7846State, ADS7846,
-                         TYPE_ADS7846)
+OBJECT_DECLARE_SIMPLE_TYPE(ADS7846State, ADS7846)
 
 /* Control-byte bitfields */
 #define CB_PD0		(1 << 0)

hw/display/artist.c

@@ -25,9 +25,7 @@
 #include "qom/object.h"
 
 #define TYPE_ARTIST "artist"
-typedef struct ARTISTState ARTISTState;
-DECLARE_INSTANCE_CHECKER(ARTISTState, ARTIST,
-                         TYPE_ARTIST)
+OBJECT_DECLARE_SIMPLE_TYPE(ARTISTState, ARTIST)
 
 #ifdef HOST_WORDS_BIGENDIAN
 #define ROP8OFF(_i) (3 - (_i))

hw/display/ati_int.h

@@ -30,9 +30,7 @@
 #define PCI_DEVICE_ID_ATI_RADEON_QY 0x5159
 
 #define TYPE_ATI_VGA "ati-vga"
-typedef struct ATIVGAState ATIVGAState;
-DECLARE_INSTANCE_CHECKER(ATIVGAState, ATI_VGA,
-                         TYPE_ATI_VGA)
+OBJECT_DECLARE_SIMPLE_TYPE(ATIVGAState, ATI_VGA)
 
 typedef struct ATIVGARegs {
     uint32_t mm_index;

hw/display/bochs-display.c

@@ -55,11 +55,9 @@ struct BochsDisplayState {
     /* device state */
     BochsDisplayMode mode;
 };
-typedef struct BochsDisplayState BochsDisplayState;
 
 #define TYPE_BOCHS_DISPLAY "bochs-display"
-DECLARE_INSTANCE_CHECKER(BochsDisplayState, BOCHS_DISPLAY,
-                         TYPE_BOCHS_DISPLAY)
+OBJECT_DECLARE_SIMPLE_TYPE(BochsDisplayState, BOCHS_DISPLAY)
 
 static const VMStateDescription vmstate_bochs_display = {
     .name = "bochs-display",

hw/display/cg3.c

@@ -66,9 +66,7 @@
 #define CG3_VRAM_OFFSET 0x800000
 
 #define TYPE_CG3 "cgthree"
-typedef struct CG3State CG3State;
-DECLARE_INSTANCE_CHECKER(CG3State, CG3,
-                         TYPE_CG3)
+OBJECT_DECLARE_SIMPLE_TYPE(CG3State, CG3)
 
 struct CG3State {
     SysBusDevice parent_obj;

hw/display/cirrus_vga.c

@@ -183,11 +183,9 @@ struct PCICirrusVGAState {
     PCIDevice dev;
     CirrusVGAState cirrus_vga;
 };
-typedef struct PCICirrusVGAState PCICirrusVGAState;
 
 #define TYPE_PCI_CIRRUS_VGA "cirrus-vga"
-DECLARE_INSTANCE_CHECKER(PCICirrusVGAState, PCI_CIRRUS_VGA,
-                         TYPE_PCI_CIRRUS_VGA)
+OBJECT_DECLARE_SIMPLE_TYPE(PCICirrusVGAState, PCI_CIRRUS_VGA)
 
 static uint8_t rop_to_index[256];
 

hw/display/cirrus_vga_isa.c

@@ -33,9 +33,7 @@
 #include "qom/object.h"
 
 #define TYPE_ISA_CIRRUS_VGA "isa-cirrus-vga"
-typedef struct ISACirrusVGAState ISACirrusVGAState;
-DECLARE_INSTANCE_CHECKER(ISACirrusVGAState, ISA_CIRRUS_VGA,
-                         TYPE_ISA_CIRRUS_VGA)
+OBJECT_DECLARE_SIMPLE_TYPE(ISACirrusVGAState, ISA_CIRRUS_VGA)
 
 struct ISACirrusVGAState {
     ISADevice parent_obj;

hw/display/exynos4210_fimd.c

@@ -294,9 +294,7 @@ struct Exynos4210fimdWindow {
 };
 
 #define TYPE_EXYNOS4210_FIMD "exynos4210.fimd"
-typedef struct Exynos4210fimdState Exynos4210fimdState;
-DECLARE_INSTANCE_CHECKER(Exynos4210fimdState, EXYNOS4210_FIMD,
-                         TYPE_EXYNOS4210_FIMD)
+OBJECT_DECLARE_SIMPLE_TYPE(Exynos4210fimdState, EXYNOS4210_FIMD)
 
 struct Exynos4210fimdState {
     SysBusDevice parent_obj;

hw/display/g364fb.c

@@ -487,9 +487,7 @@ static void g364fb_init(DeviceState *dev, G364State *s)
 }
 
 #define TYPE_G364 "sysbus-g364"
-typedef struct G364SysBusState G364SysBusState;
-DECLARE_INSTANCE_CHECKER(G364SysBusState, G364,
-                         TYPE_G364)
+OBJECT_DECLARE_SIMPLE_TYPE(G364SysBusState, G364)
 
 struct G364SysBusState {
     SysBusDevice parent_obj;

hw/display/jazz_led.c

@@ -36,9 +36,7 @@ typedef enum {
 } screen_state_t;
 
 #define TYPE_JAZZ_LED "jazz-led"
-typedef struct LedState LedState;
-DECLARE_INSTANCE_CHECKER(LedState, JAZZ_LED,
-                         TYPE_JAZZ_LED)
+OBJECT_DECLARE_SIMPLE_TYPE(LedState, JAZZ_LED)
 
 struct LedState {
     SysBusDevice parent_obj;

hw/display/milkymist-tmu2.c

@@ -83,9 +83,7 @@ struct vertex {
 } QEMU_PACKED;
 
 #define TYPE_MILKYMIST_TMU2 "milkymist-tmu2"
-typedef struct MilkymistTMU2State MilkymistTMU2State;
-DECLARE_INSTANCE_CHECKER(MilkymistTMU2State, MILKYMIST_TMU2,
-                         TYPE_MILKYMIST_TMU2)
+OBJECT_DECLARE_SIMPLE_TYPE(MilkymistTMU2State, MILKYMIST_TMU2)
 
 struct MilkymistTMU2State {
     SysBusDevice parent_obj;

hw/display/milkymist-vgafb.c

@@ -69,9 +69,7 @@ enum {
 };
 
 #define TYPE_MILKYMIST_VGAFB "milkymist-vgafb"
-typedef struct MilkymistVgafbState MilkymistVgafbState;
-DECLARE_INSTANCE_CHECKER(MilkymistVgafbState, MILKYMIST_VGAFB,
-                         TYPE_MILKYMIST_VGAFB)
+OBJECT_DECLARE_SIMPLE_TYPE(MilkymistVgafbState, MILKYMIST_VGAFB)
 
 struct MilkymistVgafbState {
     SysBusDevice parent_obj;

hw/display/next-fb.c

@@ -32,9 +32,7 @@
 #include "hw/m68k/next-cube.h"
 #include "qom/object.h"
 
-typedef struct NeXTFbState NeXTFbState;
-DECLARE_INSTANCE_CHECKER(NeXTFbState, NEXTFB,
-                         TYPE_NEXTFB)
+OBJECT_DECLARE_SIMPLE_TYPE(NeXTFbState, NEXTFB)
 
 struct NeXTFbState {
     SysBusDevice parent_obj;

hw/display/pl110.c

@@ -49,9 +49,7 @@ enum pl110_version
 };
 
 #define TYPE_PL110 "pl110"
-typedef struct PL110State PL110State;
-DECLARE_INSTANCE_CHECKER(PL110State, PL110,
-                         TYPE_PL110)
+OBJECT_DECLARE_SIMPLE_TYPE(PL110State, PL110)
 
 struct PL110State {
     SysBusDevice parent_obj;

hw/display/qxl.h

@@ -128,11 +128,9 @@ struct PCIQXLDevice {
     QXLRect            dirty[QXL_NUM_DIRTY_RECTS];
     QEMUBH            *update_area_bh;
 };
-typedef struct PCIQXLDevice PCIQXLDevice;
 
 #define TYPE_PCI_QXL "pci-qxl"
-DECLARE_INSTANCE_CHECKER(PCIQXLDevice, PCI_QXL,
-                         TYPE_PCI_QXL)
+OBJECT_DECLARE_SIMPLE_TYPE(PCIQXLDevice, PCI_QXL)
 
 #define PANIC_ON(x) if ((x)) {                         \
     printf("%s: PANIC %s failed\n", __func__, #x); \

hw/display/sii9022.c

@@ -36,9 +36,7 @@
 #define SII9022_INT_STATUS_PLUGGED 0x04;
 
 #define TYPE_SII9022 "sii9022"
-typedef struct sii9022_state sii9022_state;
-DECLARE_INSTANCE_CHECKER(sii9022_state, SII9022,
-                         TYPE_SII9022)
+OBJECT_DECLARE_SIMPLE_TYPE(sii9022_state, SII9022)
 
 struct sii9022_state {
     I2CSlave parent_obj;

hw/display/sm501.c

@@ -1932,9 +1932,7 @@ static const VMStateDescription vmstate_sm501_state = {
 };
 
 #define TYPE_SYSBUS_SM501 "sysbus-sm501"
-typedef struct SM501SysBusState SM501SysBusState;
-DECLARE_INSTANCE_CHECKER(SM501SysBusState, SYSBUS_SM501,
-                         TYPE_SYSBUS_SM501)
+OBJECT_DECLARE_SIMPLE_TYPE(SM501SysBusState, SYSBUS_SM501)
 
 struct SM501SysBusState {
     /*< private >*/
@@ -2036,9 +2034,7 @@ static const TypeInfo sm501_sysbus_info = {
 };
 
 #define TYPE_PCI_SM501 "sm501"
-typedef struct SM501PCIState SM501PCIState;
-DECLARE_INSTANCE_CHECKER(SM501PCIState, PCI_SM501,
-                         TYPE_PCI_SM501)
+OBJECT_DECLARE_SIMPLE_TYPE(SM501PCIState, PCI_SM501)
 
 struct SM501PCIState {
     /*< private >*/

hw/display/ssd0303.c

@@ -47,9 +47,7 @@ enum ssd0303_cmd {
 };
 
 #define TYPE_SSD0303 "ssd0303"
-typedef struct ssd0303_state ssd0303_state;
-DECLARE_INSTANCE_CHECKER(ssd0303_state, SSD0303,
-                         TYPE_SSD0303)
+OBJECT_DECLARE_SIMPLE_TYPE(ssd0303_state, SSD0303)
 
 struct ssd0303_state {
     I2CSlave parent_obj;

hw/display/ssd0323.c

@@ -66,11 +66,9 @@ struct ssd0323_state {
     uint32_t mode;
     uint8_t framebuffer[128 * 80 / 2];
 };
-typedef struct ssd0323_state ssd0323_state;
 
 #define TYPE_SSD0323 "ssd0323"
-DECLARE_INSTANCE_CHECKER(ssd0323_state, SSD0323,
-                         TYPE_SSD0323)
+OBJECT_DECLARE_SIMPLE_TYPE(ssd0323_state, SSD0323)
 
 
 static uint32_t ssd0323_transfer(SSISlave *dev, uint32_t data)

hw/display/tcx.c

@@ -56,9 +56,7 @@
 #define TCX_THC_CURSBITS 0x980
 
 #define TYPE_TCX "SUNW,tcx"
-typedef struct TCXState TCXState;
-DECLARE_INSTANCE_CHECKER(TCXState, TCX,
-                         TYPE_TCX)
+OBJECT_DECLARE_SIMPLE_TYPE(TCXState, TCX)
 
 struct TCXState {
     SysBusDevice parent_obj;

hw/display/vga-isa.c

@@ -35,9 +35,7 @@
 #include "qom/object.h"
 
 #define TYPE_ISA_VGA "isa-vga"
-typedef struct ISAVGAState ISAVGAState;
-DECLARE_INSTANCE_CHECKER(ISAVGAState, ISA_VGA,
-                         TYPE_ISA_VGA)
+OBJECT_DECLARE_SIMPLE_TYPE(ISAVGAState, ISA_VGA)
 
 struct ISAVGAState {
     ISADevice parent_obj;

hw/display/vga-pci.c

@@ -51,11 +51,9 @@ struct PCIVGAState {
     MemoryRegion mrs[4];
     uint8_t edid[256];
 };
-typedef struct PCIVGAState PCIVGAState;
 
 #define TYPE_PCI_VGA "pci-vga"
-DECLARE_INSTANCE_CHECKER(PCIVGAState, PCI_VGA,
-                         TYPE_PCI_VGA)
+OBJECT_DECLARE_SIMPLE_TYPE(PCIVGAState, PCI_VGA)
 
 static const VMStateDescription vmstate_vga_pci = {
     .name = "vga",

hw/dma/i82374.c

@@ -32,9 +32,7 @@
 #include "qom/object.h"
 
 #define TYPE_I82374 "i82374"
-typedef struct I82374State I82374State;
-DECLARE_INSTANCE_CHECKER(I82374State, I82374,
-                         TYPE_I82374)
+OBJECT_DECLARE_SIMPLE_TYPE(I82374State, I82374)
 
 //#define DEBUG_I82374
 

hw/dma/pl330.c

@@ -272,8 +272,7 @@ struct PL330State {
 };
 
 #define TYPE_PL330 "pl330"
-DECLARE_INSTANCE_CHECKER(PL330State, PL330,
-                         TYPE_PL330)
+OBJECT_DECLARE_SIMPLE_TYPE(PL330State, PL330)
 
 static const VMStateDescription vmstate_pl330 = {
     .name = "pl330",

hw/dma/puv3_dma.c

@@ -23,9 +23,7 @@
 #define PUV3_DMA_CH(offset)     ((offset) >> 8)
 
 #define TYPE_PUV3_DMA "puv3_dma"
-typedef struct PUV3DMAState PUV3DMAState;
-DECLARE_INSTANCE_CHECKER(PUV3DMAState, PUV3_DMA,
-                         TYPE_PUV3_DMA)
+OBJECT_DECLARE_SIMPLE_TYPE(PUV3DMAState, PUV3_DMA)
 
 struct PUV3DMAState {
     SysBusDevice parent_obj;

hw/dma/pxa2xx_dma.c

@@ -35,9 +35,7 @@ typedef struct {
 } PXA2xxDMAChannel;
 
 #define TYPE_PXA2XX_DMA "pxa2xx-dma"
-typedef struct PXA2xxDMAState PXA2xxDMAState;
-DECLARE_INSTANCE_CHECKER(PXA2xxDMAState, PXA2XX_DMA,
-                         TYPE_PXA2XX_DMA)
+OBJECT_DECLARE_SIMPLE_TYPE(PXA2xxDMAState, PXA2XX_DMA)
 
 struct PXA2xxDMAState {
     SysBusDevice parent_obj;

hw/dma/rc4030.c

@@ -56,9 +56,7 @@ typedef struct dma_pagetable_entry {
 #define DMA_FLAG_ADDR_INTR  0x0400
 
 #define TYPE_RC4030 "rc4030"
-typedef struct rc4030State rc4030State;
-DECLARE_INSTANCE_CHECKER(rc4030State, RC4030,
-                         TYPE_RC4030)
+OBJECT_DECLARE_SIMPLE_TYPE(rc4030State, RC4030)
 
 #define TYPE_RC4030_IOMMU_MEMORY_REGION "rc4030-iommu-memory-region"
 

hw/dma/xilinx_axidma.c

@@ -43,9 +43,7 @@
 #define TYPE_XILINX_AXI_DMA_DATA_STREAM "xilinx-axi-dma-data-stream"
 #define TYPE_XILINX_AXI_DMA_CONTROL_STREAM "xilinx-axi-dma-control-stream"
 
-typedef struct XilinxAXIDMA XilinxAXIDMA;
-DECLARE_INSTANCE_CHECKER(XilinxAXIDMA, XILINX_AXI_DMA,
-                         TYPE_XILINX_AXI_DMA)
+OBJECT_DECLARE_SIMPLE_TYPE(XilinxAXIDMA, XILINX_AXI_DMA)
 
 typedef struct XilinxAXIDMAStreamSlave XilinxAXIDMAStreamSlave;
 DECLARE_INSTANCE_CHECKER(XilinxAXIDMAStreamSlave, XILINX_AXI_DMA_DATA_STREAM,

hw/gpio/gpio_key.c

@@ -31,9 +31,7 @@
 #include "qom/object.h"
 
 #define TYPE_GPIOKEY "gpio-key"
-typedef struct GPIOKEYState GPIOKEYState;
-DECLARE_INSTANCE_CHECKER(GPIOKEYState, GPIOKEY,
-                         TYPE_GPIOKEY)
+OBJECT_DECLARE_SIMPLE_TYPE(GPIOKEYState, GPIOKEY)
 #define GPIO_KEY_LATENCY 100 /* 100ms */
 
 struct GPIOKEYState {

hw/gpio/max7310.c

@@ -18,9 +18,7 @@
 #include "qom/object.h"
 
 #define TYPE_MAX7310 "max7310"
-typedef struct MAX7310State MAX7310State;
-DECLARE_INSTANCE_CHECKER(MAX7310State, MAX7310,
-                         TYPE_MAX7310)
+OBJECT_DECLARE_SIMPLE_TYPE(MAX7310State, MAX7310)
 
 struct MAX7310State {
     I2CSlave parent_obj;

hw/gpio/mpc8xxx.c

@@ -27,9 +27,7 @@
 #include "qom/object.h"
 
 #define TYPE_MPC8XXX_GPIO "mpc8xxx_gpio"
-typedef struct MPC8XXXGPIOState MPC8XXXGPIOState;
-DECLARE_INSTANCE_CHECKER(MPC8XXXGPIOState, MPC8XXX_GPIO,
-                         TYPE_MPC8XXX_GPIO)
+OBJECT_DECLARE_SIMPLE_TYPE(MPC8XXXGPIOState, MPC8XXX_GPIO)
 
 struct MPC8XXXGPIOState {
     SysBusDevice parent_obj;

hw/gpio/pl061.c

@@ -35,9 +35,7 @@ static const uint8_t pl061_id_luminary[12] =
   { 0x00, 0x00, 0x00, 0x00, 0x61, 0x00, 0x18, 0x01, 0x0d, 0xf0, 0x05, 0xb1 };
 
 #define TYPE_PL061 "pl061"
-typedef struct PL061State PL061State;
-DECLARE_INSTANCE_CHECKER(PL061State, PL061,
-                         TYPE_PL061)
+OBJECT_DECLARE_SIMPLE_TYPE(PL061State, PL061)
 
 #define N_GPIOS 8
 

hw/gpio/puv3_gpio.c

@@ -19,9 +19,7 @@
 #include "qemu/log.h"
 
 #define TYPE_PUV3_GPIO "puv3_gpio"
-typedef struct PUV3GPIOState PUV3GPIOState;
-DECLARE_INSTANCE_CHECKER(PUV3GPIOState, PUV3_GPIO,
-                         TYPE_PUV3_GPIO)
+OBJECT_DECLARE_SIMPLE_TYPE(PUV3GPIOState, PUV3_GPIO)
 
 struct PUV3GPIOState {
     SysBusDevice parent_obj;

hw/gpio/zaurus.c

@@ -28,9 +28,7 @@
 /* SCOOP devices */
 
 #define TYPE_SCOOP "scoop"
-typedef struct ScoopInfo ScoopInfo;
-DECLARE_INSTANCE_CHECKER(ScoopInfo, SCOOP,
-                         TYPE_SCOOP)
+OBJECT_DECLARE_SIMPLE_TYPE(ScoopInfo, SCOOP)
 
 struct ScoopInfo {
     SysBusDevice parent_obj;

hw/hppa/dino.c

@@ -81,9 +81,7 @@
 
 #define DINO_MEM_CHUNK_SIZE (8 * MiB)
 
-typedef struct DinoState DinoState;
-DECLARE_INSTANCE_CHECKER(DinoState, DINO_PCI_HOST_BRIDGE,
-                         TYPE_DINO_PCI_HOST_BRIDGE)
+OBJECT_DECLARE_SIMPLE_TYPE(DinoState, DINO_PCI_HOST_BRIDGE)
 
 #define DINO800_REGS (1 + (DINO_TLTIM - DINO_GMASK) / 4)
 static const uint32_t reg800_keep_bits[DINO800_REGS] = {

hw/hppa/lasi.c

@@ -53,9 +53,7 @@
 #define ICR_BUS_ERROR_BIT  LASI_BIT(8)  /* bit 8 in ICR */
 #define ICR_TOC_BIT        LASI_BIT(1)  /* bit 1 in ICR */
 
-typedef struct LasiState LasiState;
-DECLARE_INSTANCE_CHECKER(LasiState, LASI_CHIP,
-                         TYPE_LASI_CHIP)
+OBJECT_DECLARE_SIMPLE_TYPE(LasiState, LASI_CHIP)
 
 struct LasiState {
     PCIHostState parent_obj;

hw/hyperv/hyperv.c

@@ -35,11 +35,9 @@ struct SynICState {
     struct hyperv_message_page *msg_page;
     struct hyperv_event_flags_page *event_page;
 };
-typedef struct SynICState SynICState;
 
 #define TYPE_SYNIC "hyperv-synic"
-DECLARE_INSTANCE_CHECKER(SynICState, SYNIC,
-                         TYPE_SYNIC)
+OBJECT_DECLARE_SIMPLE_TYPE(SynICState, SYNIC)
 
 static bool synic_enabled;
 

hw/hyperv/hyperv_testdev.c

@@ -47,11 +47,9 @@ struct HypervTestDev {
     QLIST_HEAD(, TestMsgConn) msg_conns;
     QLIST_HEAD(, TestEvtConn) evt_conns;
 };
-typedef struct HypervTestDev HypervTestDev;
 
 #define TYPE_HYPERV_TEST_DEV "hyperv-testdev"
-DECLARE_INSTANCE_CHECKER(HypervTestDev, HYPERV_TEST_DEV,
-                         TYPE_HYPERV_TEST_DEV)
+OBJECT_DECLARE_SIMPLE_TYPE(HypervTestDev, HYPERV_TEST_DEV)
 
 enum {
     HV_TEST_DEV_SINT_ROUTE_CREATE = 1,

hw/i2c/bitbang_i2c.c

@@ -163,9 +163,7 @@ void bitbang_i2c_init(bitbang_i2c_interface *s, I2CBus *bus)
 /* GPIO interface.  */
 
 #define TYPE_GPIO_I2C "gpio_i2c"
-typedef struct GPIOI2CState GPIOI2CState;
-DECLARE_INSTANCE_CHECKER(GPIOI2CState, GPIO_I2C,
-                         TYPE_GPIO_I2C)
+OBJECT_DECLARE_SIMPLE_TYPE(GPIOI2CState, GPIO_I2C)
 
 struct GPIOI2CState {
     SysBusDevice parent_obj;

hw/i2c/exynos4210_i2c.c

@@ -34,9 +34,7 @@
 #endif
 
 #define TYPE_EXYNOS4_I2C                  "exynos4210.i2c"
-typedef struct Exynos4210I2CState Exynos4210I2CState;
-DECLARE_INSTANCE_CHECKER(Exynos4210I2CState, EXYNOS4_I2C,
-                         TYPE_EXYNOS4_I2C)
+OBJECT_DECLARE_SIMPLE_TYPE(Exynos4210I2CState, EXYNOS4_I2C)
 
 /* Exynos4210 I2C memory map */
 #define EXYNOS4_I2C_MEM_SIZE              0x14

hw/i2c/mpc_i2c.c

@@ -37,9 +37,7 @@
 #endif
 
 #define TYPE_MPC_I2C "mpc-i2c"
-typedef struct MPCI2CState MPCI2CState;
-DECLARE_INSTANCE_CHECKER(MPCI2CState, MPC_I2C,
-                         TYPE_MPC_I2C)
+OBJECT_DECLARE_SIMPLE_TYPE(MPCI2CState, MPC_I2C)
 
 #define MPC_I2C_ADR   0x00
 #define MPC_I2C_FDR   0x04