[v2,43/58] sysbus: Tidy up sysbus_init_child_obj()'s @childsize arg, part 2

Commit Message

Markus Armbruster May 29, 2020, 1:45 p.m. UTC

The callers of sysbus_init_child_obj() commonly pass either &child,
sizeof(child), or pchild, sizeof(*pchild).  Tidy up the few that use
something else instead, mostly to keep future commits simpler.

Coccinelle script:

    @@
    expression parent, propname, type;
    expression child;
    type T;
    T proxy;
    @@
    (
         sysbus_init_child_obj(parent, propname, &child, sizeof(child), type)
    |
         sysbus_init_child_obj(parent, propname, child, sizeof(*child), type)
    |
    -    sysbus_init_child_obj(parent, propname, child, sizeof(proxy), type)
    +    sysbus_init_child_obj(parent, propname, child, sizeof(*child), type)
    )

This script is *unsound*: for each change we need to verify the
@childsize argument stays the same.  I did.

Signed-off-by: Markus Armbruster <[e-mail]>
---
 hw/arm/mps2-tz.c | 15 +++++++--------
 hw/arm/musca.c   |  7 +++----
 2 files changed, 10 insertions(+), 12 deletions(-)

Patch

diff --git a/hw/arm/mps2-tz.c b/hw/arm/mps2-tz.c
index ad0bc9365a..90f4449b9d 100644
--- a/hw/arm/mps2-tz.c
+++ b/hw/arm/mps2-tz.c
@@ -193,7 +193,7 @@  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(mms->uart[0]),
+    sysbus_init_child_obj(OBJECT(mms), name, uart, sizeof(*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);
@@ -214,8 +214,8 @@  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(mms->scc), TYPE_MPS2_SCC);
+    sysbus_init_child_obj(OBJECT(mms), "scc", scc, sizeof(*scc),
+                          TYPE_MPS2_SCC);
     sccdev = DEVICE(scc);
     qdev_prop_set_uint32(sccdev, "scc-cfg4", 0x2);
     qdev_prop_set_uint32(sccdev, "scc-aid", 0x00200008);
@@ -229,8 +229,8 @@  static MemoryRegion *make_fpgaio(MPS2TZMachineState *mms, void *opaque,
 {
     MPS2FPGAIO *fpgaio = opaque;
 
-    sysbus_init_child_obj(OBJECT(mms), "fpgaio", fpgaio,
-                          sizeof(mms->fpgaio), TYPE_MPS2_FPGAIO);
+    sysbus_init_child_obj(OBJECT(mms), "fpgaio", fpgaio, sizeof(*fpgaio),
+                          TYPE_MPS2_FPGAIO);
     object_property_set_bool(OBJECT(fpgaio), true, "realized", &error_fatal);
     return sysbus_mmio_get_region(SYS_BUS_DEVICE(fpgaio), 0);
 }
@@ -267,7 +267,7 @@  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(mms->ssram_mpc[0]),
+    sysbus_init_child_obj(OBJECT(mms), mpcname, mpc, sizeof(*mpc),
                           TYPE_TZ_MPC);
     object_property_set_link(OBJECT(mpc), OBJECT(ssram),
                              "downstream", &error_fatal);
@@ -363,8 +363,7 @@  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(mms->spi[0]),
-                          TYPE_PL022);
+    sysbus_init_child_obj(OBJECT(mms), name, spi, sizeof(*spi), TYPE_PL022);
     object_property_set_bool(OBJECT(spi), true, "realized", &error_fatal);
     s = SYS_BUS_DEVICE(spi);
     sysbus_connect_irq(s, 0, get_sse_irq_in(mms, 51 + i));
diff --git a/hw/arm/musca.c b/hw/arm/musca.c
index b7f1c4e128..a1a6e887ed 100644
--- a/hw/arm/musca.c
+++ b/hw/arm/musca.c
@@ -256,7 +256,7 @@  static MemoryRegion *make_mpc(MuscaMachineState *mms, void *opaque,
         g_assert_not_reached();
     }
 
-    sysbus_init_child_obj(OBJECT(mms), mpcname, mpc, sizeof(mms->mpc[0]),
+    sysbus_init_child_obj(OBJECT(mms), mpcname, mpc, sizeof(*mpc),
                           TYPE_TZ_MPC);
     object_property_set_link(OBJECT(mpc), OBJECT(downstream),
                              "downstream", &error_fatal);
@@ -279,7 +279,7 @@  static MemoryRegion *make_rtc(MuscaMachineState *mms, void *opaque,
 {
     PL031State *rtc = opaque;
 
-    sysbus_init_child_obj(OBJECT(mms), name, rtc, sizeof(mms->rtc), TYPE_PL031);
+    sysbus_init_child_obj(OBJECT(mms), name, rtc, sizeof(*rtc), TYPE_PL031);
     object_property_set_bool(OBJECT(rtc), true, "realized", &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);
@@ -293,8 +293,7 @@  static MemoryRegion *make_uart(MuscaMachineState *mms, void *opaque,
     int irqbase = 7 + i * 6;
     SysBusDevice *s;
 
-    sysbus_init_child_obj(OBJECT(mms), name, uart, sizeof(mms->uart[0]),
-                          TYPE_PL011);
+    sysbus_init_child_obj(OBJECT(mms), name, uart, sizeof(*uart), TYPE_PL011);
     qdev_prop_set_chr(DEVICE(uart), "chardev", serial_hd(i));
     object_property_set_bool(OBJECT(uart), true, "realized", &error_fatal);
     s = SYS_BUS_DEVICE(uart);