sysbus: Tidy up sysbus_init_child_obj()'s @childsize arg, part 2

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 <armbru@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200610053247.1583243-44-armbru@redhat.com>

1 files changed, 3 insertions, 4 deletions

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);