On Mon, 23 Sep 2024, Bernhard Beschow wrote:
Am 23. September 2024 10:49:53 UTC schrieb BALATON Zoltan <bala...@eik.bme.hu>:
On Mon, 23 Sep 2024, Bernhard Beschow wrote:
Signed-off-by: Bernhard Beschow <shen...@gmail.com>
---
hw/i2c/mpc_i2c.c | 20 ++++++++------------
1 file changed, 8 insertions(+), 12 deletions(-)

diff --git a/hw/i2c/mpc_i2c.c b/hw/i2c/mpc_i2c.c
index 3d79c15653..16f4309ea9 100644
--- a/hw/i2c/mpc_i2c.c
+++ b/hw/i2c/mpc_i2c.c
@@ -20,7 +20,6 @@
#include "qemu/osdep.h"
#include "hw/i2c/i2c.h"
#include "hw/irq.h"
-#include "qemu/module.h"
#include "hw/sysbus.h"
#include "migration/vmstate.h"
#include "qom/object.h"
@@ -345,16 +344,13 @@ static void mpc_i2c_class_init(ObjectClass *klass, void 
*data)
    dc->desc = "MPC I2C Controller";
}

-static const TypeInfo mpc_i2c_type_info = {
-    .name          = TYPE_MPC_I2C,
-    .parent        = TYPE_SYS_BUS_DEVICE,
-    .instance_size = sizeof(MPCI2CState),
-    .class_init    = mpc_i2c_class_init,
+static const TypeInfo types[] = {
+    {
+        .name          = TYPE_MPC_I2C,
+        .parent        = TYPE_SYS_BUS_DEVICE,
+        .instance_size = sizeof(MPCI2CState),
+        .class_init    = mpc_i2c_class_init,
+    },
};

-static void mpc_i2c_register_types(void)
-{
-    type_register_static(&mpc_i2c_type_info);
-}
-
-type_init(mpc_i2c_register_types)
+DEFINE_TYPES(types)

What's the advantage of this when we have a single device? For these devices 
this looks like just code churn to me.

It is still shorter and also more modern style. As a nice side effect it also 
helps in my experimental branch (which may never ship).

I don't mind changing this but I see no real advantage either. It removes a one line function but adds a one element array instead which is about the same level of boilerplate and not less confusing for new people so it does not seem to help much.

Regards,
BALATON Zoltan

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