sysbus: Convert qdev_set_parent_bus() use with Coccinelle, part 1

I'm converting from qdev_set_parent_bus()/realize to qdev_realize();
recent commit "qdev: Convert uses of qdev_set_parent_bus() with
Coccinelle" explains why.

sysbus_init_child_obj() is a wrapper around
object_initialize_child_with_props() and qdev_set_parent_bus().  It
passes no properties.

Convert sysbus_init_child_obj()/realize to object_initialize_child()/
qdev_realize().

Coccinelle script:

    @@
    expression parent, name, size, type, errp;
    expression child;
    symbol true;
    @@
    -    sysbus_init_child_obj(parent, name, &child, size, type);
    +    sysbus_init_child_XXX(parent, name, &child, size, type);
         ...
    -    object_property_set_bool(OBJECT(&child), true, "realized", errp);
    +    sysbus_realize(SYS_BUS_DEVICE(&child), errp);

    @@
    expression parent, name, size, type, errp;
    expression child;
    symbol true;
    @@
    -    sysbus_init_child_obj(parent, name, child, size, type);
    +    sysbus_init_child_XXX(parent, name, child, size, type);
         ...
    -    object_property_set_bool(OBJECT(child), true, "realized", errp);
    +    sysbus_realize(SYS_BUS_DEVICE(child), errp);

    @@
    expression parent, name, size, type;
    expression child;
    expression dev;
    expression expr;
    @@
    -    sysbus_init_child_obj(parent, name, child, size, type);
    +    sysbus_init_child_XXX(parent, name, child, size, type);
         ...
         dev = DEVICE(child);
         ... when != dev = expr;
    -    qdev_init_nofail(dev);
    +    sysbus_realize(SYS_BUS_DEVICE(dev), &error_fatal);

    @@
    expression parent, propname, type;
    expression child;
    @@
    -    sysbus_init_child_XXX(parent, propname, child, sizeof(*child), type)
    +    object_initialize_child(parent, propname, child, type)

    @@
    expression parent, propname, type;
    expression child;
    @@
    -    sysbus_init_child_XXX(parent, propname, &child, sizeof(child), type)
    +    object_initialize_child(parent, propname, &child, type)

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200610053247.1583243-48-armbru@redhat.com>

hw/arm/bcm2835_peripherals.c

@@ -27,11 +27,10 @@ static void create_unimp(BCM2835PeripheralState *ps,
                          UnimplementedDeviceState *uds,
                          const char *name, hwaddr ofs, hwaddr size)
 {
-    sysbus_init_child_obj(OBJECT(ps), name, uds, sizeof(*uds),
-                          TYPE_UNIMPLEMENTED_DEVICE);
+    object_initialize_child(OBJECT(ps), name, uds, TYPE_UNIMPLEMENTED_DEVICE);
     qdev_prop_set_string(DEVICE(uds), "name", name);
     qdev_prop_set_uint64(DEVICE(uds), "size", size);
-    object_property_set_bool(OBJECT(uds), true, "realized", &error_fatal);
+    sysbus_realize(SYS_BUS_DEVICE(uds), &error_fatal);
     memory_region_add_subregion_overlap(&ps->peri_mr, ofs,
                     sysbus_mmio_get_region(SYS_BUS_DEVICE(uds), 0), -1000);
 }

hw/arm/exynos4_boards.c

@@ -128,10 +128,9 @@ exynos4_boards_init_common(MachineState *machine,
     exynos4_boards_init_ram(s, get_system_memory(),
                             exynos4_board_ram_size[board_type]);
 
-    sysbus_init_child_obj(OBJECT(machine), "soc",
-                          &s->soc, sizeof(s->soc), TYPE_EXYNOS4210_SOC);
-    object_property_set_bool(OBJECT(&s->soc), true, "realized",
-                             &error_fatal);
+    object_initialize_child(OBJECT(machine), "soc", &s->soc,
+                            TYPE_EXYNOS4210_SOC);
+    sysbus_realize(SYS_BUS_DEVICE(&s->soc), &error_fatal);
 
     return s;
 }

hw/arm/mps2-tz.c

@@ -174,11 +174,10 @@ static MemoryRegion *make_unimp_dev(MPS2TZMachineState *mms,
      */
     UnimplementedDeviceState *uds = opaque;
 
-    sysbus_init_child_obj(OBJECT(mms), name, uds, sizeof(*uds),
-                          TYPE_UNIMPLEMENTED_DEVICE);
+    object_initialize_child(OBJECT(mms), name, uds, TYPE_UNIMPLEMENTED_DEVICE);
     qdev_prop_set_string(DEVICE(uds), "name", name);
     qdev_prop_set_uint64(DEVICE(uds), "size", size);
-    object_property_set_bool(OBJECT(uds), true, "realized", &error_fatal);
+    sysbus_realize(SYS_BUS_DEVICE(uds), &error_fatal);
     return sysbus_mmio_get_region(SYS_BUS_DEVICE(uds), 0);
 }
 
@@ -193,11 +192,10 @@ static MemoryRegion *make_uart(MPS2TZMachineState *mms, void *opaque,
     SysBusDevice *s;
     DeviceState *orgate_dev = DEVICE(&mms->uart_irq_orgate);
 
-    sysbus_init_child_obj(OBJECT(mms), name, uart, sizeof(*uart),
-                          TYPE_CMSDK_APB_UART);
+    object_initialize_child(OBJECT(mms), name, uart, TYPE_CMSDK_APB_UART);
     qdev_prop_set_chr(DEVICE(uart), "chardev", serial_hd(i));
     qdev_prop_set_uint32(DEVICE(uart), "pclk-frq", SYSCLK_FRQ);
-    object_property_set_bool(OBJECT(uart), true, "realized", &error_fatal);
+    sysbus_realize(SYS_BUS_DEVICE(uart), &error_fatal);
     s = SYS_BUS_DEVICE(uart);
     sysbus_connect_irq(s, 0, get_sse_irq_in(mms, txirqno));
     sysbus_connect_irq(s, 1, get_sse_irq_in(mms, rxirqno));
@@ -214,13 +212,12 @@ static MemoryRegion *make_scc(MPS2TZMachineState *mms, void *opaque,
     DeviceState *sccdev;
     MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_GET_CLASS(mms);
 
-    sysbus_init_child_obj(OBJECT(mms), "scc", scc, sizeof(*scc),
-                          TYPE_MPS2_SCC);
+    object_initialize_child(OBJECT(mms), "scc", scc, TYPE_MPS2_SCC);
     sccdev = DEVICE(scc);
     qdev_prop_set_uint32(sccdev, "scc-cfg4", 0x2);
     qdev_prop_set_uint32(sccdev, "scc-aid", 0x00200008);
     qdev_prop_set_uint32(sccdev, "scc-id", mmc->scc_id);
-    object_property_set_bool(OBJECT(scc), true, "realized", &error_fatal);
+    sysbus_realize(SYS_BUS_DEVICE(scc), &error_fatal);
     return sysbus_mmio_get_region(SYS_BUS_DEVICE(sccdev), 0);
 }
 
@@ -229,9 +226,8 @@ static MemoryRegion *make_fpgaio(MPS2TZMachineState *mms, void *opaque,
 {
     MPS2FPGAIO *fpgaio = opaque;
 
-    sysbus_init_child_obj(OBJECT(mms), "fpgaio", fpgaio, sizeof(*fpgaio),
-                          TYPE_MPS2_FPGAIO);
-    object_property_set_bool(OBJECT(fpgaio), true, "realized", &error_fatal);
+    object_initialize_child(OBJECT(mms), "fpgaio", fpgaio, TYPE_MPS2_FPGAIO);
+    sysbus_realize(SYS_BUS_DEVICE(fpgaio), &error_fatal);
     return sysbus_mmio_get_region(SYS_BUS_DEVICE(fpgaio), 0);
 }
 
@@ -267,11 +263,10 @@ static MemoryRegion *make_mpc(MPS2TZMachineState *mms, void *opaque,
 
     memory_region_init_ram(ssram, NULL, name, ramsize[i], &error_fatal);
 
-    sysbus_init_child_obj(OBJECT(mms), mpcname, mpc, sizeof(*mpc),
-                          TYPE_TZ_MPC);
+    object_initialize_child(OBJECT(mms), mpcname, mpc, TYPE_TZ_MPC);
     object_property_set_link(OBJECT(mpc), OBJECT(ssram),
                              "downstream", &error_fatal);
-    object_property_set_bool(OBJECT(mpc), true, "realized", &error_fatal);
+    sysbus_realize(SYS_BUS_DEVICE(mpc), &error_fatal);
     /* Map the upstream end of the MPC into system memory */
     upstream = sysbus_mmio_get_region(SYS_BUS_DEVICE(mpc), 1);
     memory_region_add_subregion(get_system_memory(), rambase[i], upstream);
@@ -310,13 +305,13 @@ static MemoryRegion *make_dma(MPS2TZMachineState *mms, void *opaque,
      * the MSC connects to the IoTKit AHB Slave Expansion port, so the
      * DMA devices can see all devices and memory that the CPU does.
      */
-    sysbus_init_child_obj(OBJECT(mms), mscname, msc, sizeof(*msc), TYPE_TZ_MSC);
+    object_initialize_child(OBJECT(mms), mscname, msc, TYPE_TZ_MSC);
     msc_downstream = sysbus_mmio_get_region(SYS_BUS_DEVICE(&mms->iotkit), 0);
     object_property_set_link(OBJECT(msc), OBJECT(msc_downstream),
                              "downstream", &error_fatal);
     object_property_set_link(OBJECT(msc), OBJECT(mms),
                              "idau", &error_fatal);
-    object_property_set_bool(OBJECT(msc), true, "realized", &error_fatal);
+    sysbus_realize(SYS_BUS_DEVICE(msc), &error_fatal);
 
     qdev_connect_gpio_out_named(DEVICE(msc), "irq", 0,
                                 qdev_get_gpio_in_named(iotkitdev,
@@ -333,10 +328,10 @@ static MemoryRegion *make_dma(MPS2TZMachineState *mms, void *opaque,
                                                  "cfg_sec_resp", 0));
     msc_upstream = sysbus_mmio_get_region(SYS_BUS_DEVICE(msc), 0);
 
-    sysbus_init_child_obj(OBJECT(mms), name, dma, sizeof(*dma), TYPE_PL081);
+    object_initialize_child(OBJECT(mms), name, dma, TYPE_PL081);
     object_property_set_link(OBJECT(dma), OBJECT(msc_upstream),
                              "downstream", &error_fatal);
-    object_property_set_bool(OBJECT(dma), true, "realized", &error_fatal);
+    sysbus_realize(SYS_BUS_DEVICE(dma), &error_fatal);
 
     s = SYS_BUS_DEVICE(dma);
     /* Wire up DMACINTR, DMACINTERR, DMACINTTC */
@@ -363,8 +358,8 @@ static MemoryRegion *make_spi(MPS2TZMachineState *mms, void *opaque,
     int i = spi - &mms->spi[0];
     SysBusDevice *s;
 
-    sysbus_init_child_obj(OBJECT(mms), name, spi, sizeof(*spi), TYPE_PL022);
-    object_property_set_bool(OBJECT(spi), true, "realized", &error_fatal);
+    object_initialize_child(OBJECT(mms), name, spi, TYPE_PL022);
+    sysbus_realize(SYS_BUS_DEVICE(spi), &error_fatal);
     s = SYS_BUS_DEVICE(spi);
     sysbus_connect_irq(s, 0, get_sse_irq_in(mms, 51 + i));
     return sysbus_mmio_get_region(s, 0);
@@ -393,15 +388,14 @@ static void mps2tz_common_init(MachineState *machine)
         exit(EXIT_FAILURE);
     }
 
-    sysbus_init_child_obj(OBJECT(machine), TYPE_IOTKIT, &mms->iotkit,
-                          sizeof(mms->iotkit), mmc->armsse_type);
+    object_initialize_child(OBJECT(machine), TYPE_IOTKIT, &mms->iotkit,
+                            mmc->armsse_type);
     iotkitdev = DEVICE(&mms->iotkit);
     object_property_set_link(OBJECT(&mms->iotkit), OBJECT(system_memory),
                              "memory", &error_abort);
     qdev_prop_set_uint32(iotkitdev, "EXP_NUMIRQ", MPS2TZ_NUMIRQ);
     qdev_prop_set_uint32(iotkitdev, "MAINCLK", SYSCLK_FRQ);
-    object_property_set_bool(OBJECT(&mms->iotkit), true, "realized",
-                             &error_fatal);
+    sysbus_realize(SYS_BUS_DEVICE(&mms->iotkit), &error_fatal);
 
     /*
      * The AN521 needs us to create splitters to feed the IRQ inputs
@@ -549,8 +543,8 @@ static void mps2tz_common_init(MachineState *machine)
         int port;
         char *gpioname;
 
-        sysbus_init_child_obj(OBJECT(machine), ppcinfo->name, ppc,
-                              sizeof(*ppc), TYPE_TZ_PPC);
+        object_initialize_child(OBJECT(machine), ppcinfo->name, ppc,
+                                TYPE_TZ_PPC);
         ppcdev = DEVICE(ppc);
 
         for (port = 0; port < TZ_NUM_PORTS; port++) {
@@ -569,7 +563,7 @@ static void mps2tz_common_init(MachineState *machine)
             g_free(portname);
         }
 
-        object_property_set_bool(OBJECT(ppc), true, "realized", &error_fatal);
+        sysbus_realize(SYS_BUS_DEVICE(ppc), &error_fatal);
 
         for (port = 0; port < TZ_NUM_PORTS; port++) {
             const PPCPortInfo *pinfo = &ppcinfo->ports[port];

hw/arm/mps2.c

@@ -180,8 +180,7 @@ static void mps2_common_init(MachineState *machine)
         g_assert_not_reached();
     }
 
-    sysbus_init_child_obj(OBJECT(mms), "armv7m", &mms->armv7m,
-                          sizeof(mms->armv7m), TYPE_ARMV7M);
+    object_initialize_child(OBJECT(mms), "armv7m", &mms->armv7m, TYPE_ARMV7M);
     armv7m = DEVICE(&mms->armv7m);
     switch (mmc->fpga_type) {
     case FPGA_AN385:
@@ -197,8 +196,7 @@ static void mps2_common_init(MachineState *machine)
     qdev_prop_set_bit(armv7m, "enable-bitband", true);
     object_property_set_link(OBJECT(&mms->armv7m), OBJECT(system_memory),
                              "memory", &error_abort);
-    object_property_set_bool(OBJECT(&mms->armv7m), true, "realized",
-                             &error_fatal);
+    sysbus_realize(SYS_BUS_DEVICE(&mms->armv7m), &error_fatal);
 
     create_unimplemented_device("zbtsmram mirror", 0x00400000, 0x00400000);
     create_unimplemented_device("RESERVED 1", 0x00800000, 0x00800000);
@@ -305,23 +303,20 @@ static void mps2_common_init(MachineState *machine)
     cmsdk_apb_timer_create(0x40000000, qdev_get_gpio_in(armv7m, 8), SYSCLK_FRQ);
     cmsdk_apb_timer_create(0x40001000, qdev_get_gpio_in(armv7m, 9), SYSCLK_FRQ);
 
-    sysbus_init_child_obj(OBJECT(mms), "dualtimer", &mms->dualtimer,
-                          sizeof(mms->dualtimer), TYPE_CMSDK_APB_DUALTIMER);
+    object_initialize_child(OBJECT(mms), "dualtimer", &mms->dualtimer,
+                            TYPE_CMSDK_APB_DUALTIMER);
     qdev_prop_set_uint32(DEVICE(&mms->dualtimer), "pclk-frq", SYSCLK_FRQ);
-    object_property_set_bool(OBJECT(&mms->dualtimer), true, "realized",
-                             &error_fatal);
+    sysbus_realize(SYS_BUS_DEVICE(&mms->dualtimer), &error_fatal);
     sysbus_connect_irq(SYS_BUS_DEVICE(&mms->dualtimer), 0,
                        qdev_get_gpio_in(armv7m, 10));
     sysbus_mmio_map(SYS_BUS_DEVICE(&mms->dualtimer), 0, 0x40002000);
 
-    sysbus_init_child_obj(OBJECT(mms), "scc", &mms->scc,
-                          sizeof(mms->scc), TYPE_MPS2_SCC);
+    object_initialize_child(OBJECT(mms), "scc", &mms->scc, TYPE_MPS2_SCC);
     sccdev = DEVICE(&mms->scc);
     qdev_prop_set_uint32(sccdev, "scc-cfg4", 0x2);
     qdev_prop_set_uint32(sccdev, "scc-aid", 0x00200008);
     qdev_prop_set_uint32(sccdev, "scc-id", mmc->scc_id);
-    object_property_set_bool(OBJECT(&mms->scc), true, "realized",
-                             &error_fatal);
+    sysbus_realize(SYS_BUS_DEVICE(&mms->scc), &error_fatal);
     sysbus_mmio_map(SYS_BUS_DEVICE(sccdev), 0, 0x4002f000);
 
     /* In hardware this is a LAN9220; the LAN9118 is software compatible

hw/arm/musca.c

@@ -142,11 +142,10 @@ static MemoryRegion *make_unimp_dev(MuscaMachineState *mms,
      */
     UnimplementedDeviceState *uds = opaque;
 
-    sysbus_init_child_obj(OBJECT(mms), name, uds, sizeof(*uds),
-                          TYPE_UNIMPLEMENTED_DEVICE);
+    object_initialize_child(OBJECT(mms), name, uds, TYPE_UNIMPLEMENTED_DEVICE);
     qdev_prop_set_string(DEVICE(uds), "name", name);
     qdev_prop_set_uint64(DEVICE(uds), "size", size);
-    object_property_set_bool(OBJECT(uds), true, "realized", &error_fatal);
+    sysbus_realize(SYS_BUS_DEVICE(uds), &error_fatal);
     return sysbus_mmio_get_region(SYS_BUS_DEVICE(uds), 0);
 }
 
@@ -245,22 +244,21 @@ static MemoryRegion *make_mpc(MuscaMachineState *mms, void *opaque,
     case MPC_CRYPTOISLAND:
         /* We don't implement the CryptoIsland yet */
         uds = &mms->cryptoisland;
-        sysbus_init_child_obj(OBJECT(mms), name, uds, sizeof(*uds),
-                              TYPE_UNIMPLEMENTED_DEVICE);
+        object_initialize_child(OBJECT(mms), name, uds,
+                                TYPE_UNIMPLEMENTED_DEVICE);
         qdev_prop_set_string(DEVICE(uds), "name", mpcinfo[i].name);
         qdev_prop_set_uint64(DEVICE(uds), "size", mpcinfo[i].size);
-        object_property_set_bool(OBJECT(uds), true, "realized", &error_fatal);
+        sysbus_realize(SYS_BUS_DEVICE(uds), &error_fatal);
         downstream = sysbus_mmio_get_region(SYS_BUS_DEVICE(uds), 0);
         break;
     default:
         g_assert_not_reached();
     }
 
-    sysbus_init_child_obj(OBJECT(mms), mpcname, mpc, sizeof(*mpc),
-                          TYPE_TZ_MPC);
+    object_initialize_child(OBJECT(mms), mpcname, mpc, TYPE_TZ_MPC);
     object_property_set_link(OBJECT(mpc), OBJECT(downstream),
                              "downstream", &error_fatal);
-    object_property_set_bool(OBJECT(mpc), true, "realized", &error_fatal);
+    sysbus_realize(SYS_BUS_DEVICE(mpc), &error_fatal);
     /* Map the upstream end of the MPC into system memory */
     upstream = sysbus_mmio_get_region(SYS_BUS_DEVICE(mpc), 1);
     memory_region_add_subregion(get_system_memory(), mpcinfo[i].addr, upstream);
@@ -279,8 +277,8 @@ static MemoryRegion *make_rtc(MuscaMachineState *mms, void *opaque,
 {
     PL031State *rtc = opaque;
 
-    sysbus_init_child_obj(OBJECT(mms), name, rtc, sizeof(*rtc), TYPE_PL031);
-    object_property_set_bool(OBJECT(rtc), true, "realized", &error_fatal);
+    object_initialize_child(OBJECT(mms), name, rtc, TYPE_PL031);
+    sysbus_realize(SYS_BUS_DEVICE(rtc), &error_fatal);
     sysbus_connect_irq(SYS_BUS_DEVICE(rtc), 0, get_sse_irq_in(mms, 39));
     return sysbus_mmio_get_region(SYS_BUS_DEVICE(rtc), 0);
 }
@@ -293,9 +291,9 @@ static MemoryRegion *make_uart(MuscaMachineState *mms, void *opaque,
     int irqbase = 7 + i * 6;
     SysBusDevice *s;
 
-    sysbus_init_child_obj(OBJECT(mms), name, uart, sizeof(*uart), TYPE_PL011);
+    object_initialize_child(OBJECT(mms), name, uart, TYPE_PL011);
     qdev_prop_set_chr(DEVICE(uart), "chardev", serial_hd(i));
-    object_property_set_bool(OBJECT(uart), true, "realized", &error_fatal);
+    sysbus_realize(SYS_BUS_DEVICE(uart), &error_fatal);
     s = SYS_BUS_DEVICE(uart);
     sysbus_connect_irq(s, 0, get_sse_irq_in(mms, irqbase + 5)); /* combined */
     sysbus_connect_irq(s, 1, get_sse_irq_in(mms, irqbase + 0)); /* RX */
@@ -373,8 +371,8 @@ static void musca_init(MachineState *machine)
         exit(1);
     }
 
-    sysbus_init_child_obj(OBJECT(machine), "sse-200", &mms->sse,
-                          sizeof(mms->sse), TYPE_SSE200);
+    object_initialize_child(OBJECT(machine), "sse-200", &mms->sse,
+                            TYPE_SSE200);
     ssedev = DEVICE(&mms->sse);
     object_property_set_link(OBJECT(&mms->sse), OBJECT(system_memory),
                              "memory", &error_fatal);
@@ -390,8 +388,7 @@ static void musca_init(MachineState *machine)
         qdev_prop_set_bit(ssedev, "CPU0_FPU", true);
         qdev_prop_set_bit(ssedev, "CPU0_DSP", true);
     }
-    object_property_set_bool(OBJECT(&mms->sse), true, "realized",
-                             &error_fatal);
+    sysbus_realize(SYS_BUS_DEVICE(&mms->sse), &error_fatal);
 
     /*
      * We need to create splitters to feed the IRQ inputs
@@ -531,8 +528,8 @@ static void musca_init(MachineState *machine)
         int port;
         char *gpioname;
 
-        sysbus_init_child_obj(OBJECT(machine), ppcinfo->name, ppc,
-                              sizeof(*ppc), TYPE_TZ_PPC);
+        object_initialize_child(OBJECT(machine), ppcinfo->name, ppc,
+                                TYPE_TZ_PPC);
         ppcdev = DEVICE(ppc);
 
         for (port = 0; port < TZ_NUM_PORTS; port++) {
@@ -551,7 +548,7 @@ static void musca_init(MachineState *machine)
             g_free(portname);
         }
 
-        object_property_set_bool(OBJECT(ppc), true, "realized", &error_fatal);
+        sysbus_realize(SYS_BUS_DEVICE(ppc), &error_fatal);
 
         for (port = 0; port < TZ_NUM_PORTS; port++) {
             const PPCPortInfo *pinfo = &ppcinfo->ports[port];

hw/arm/xlnx-versal-virt.c

@@ -500,13 +500,13 @@ static void versal_virt_init(MachineState *machine)
         psci_conduit = QEMU_PSCI_CONDUIT_SMC;
     }
 
-    sysbus_init_child_obj(OBJECT(machine), "xlnx-versal", &s->soc,
-                          sizeof(s->soc), TYPE_XLNX_VERSAL);
+    object_initialize_child(OBJECT(machine), "xlnx-versal", &s->soc,
+                            TYPE_XLNX_VERSAL);
     object_property_set_link(OBJECT(&s->soc), OBJECT(machine->ram),
                              "ddr", &error_abort);
     object_property_set_int(OBJECT(&s->soc), psci_conduit,
                             "psci-conduit", &error_abort);
-    object_property_set_bool(OBJECT(&s->soc), true, "realized", &error_fatal);
+    sysbus_realize(SYS_BUS_DEVICE(&s->soc), &error_fatal);
 
     fdt_create(s);
     create_virtio_regions(s);