Re: [Qemu-devel] [PATCH 1/3] ide: add drive-id property

["Andreas Färber" <afaerber@suse.de>]

Am 26.04.2013 21:43, schrieb Anthony Liguori:
> This returns a string similar to what the guest would display in
> something like Linux's /dev/disk/by-id/ path.
> 
> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
> ---
>  hw/ide/qdev.c | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
> 
> diff --git a/hw/ide/qdev.c b/hw/ide/qdev.c
> index 8a9a891..94b1664 100644
> --- a/hw/ide/qdev.c
> +++ b/hw/ide/qdev.c
> @@ -270,6 +270,20 @@ static const TypeInfo ide_drive_info = {
>      .class_init    = ide_drive_class_init,
>  };
>  
> +static char *ide_device_get_model(Object *obj, Error **errp)
> +{
> +    IDEDevice *dev = IDE_DEVICE(obj);
> +    IDEBus *bus = DO_UPCAST(IDEBus, qbus, dev->qdev.parent_bus);

IDEBus *bus = IDE_BUS(qdev_get_parent_bus(DEVICE(obj)));

You're breaking your own rules. :)

> +    IDEState *s = bus->ifs + dev->unit;
> +
> +    return g_strdup_printf("%s %s", s->drive_model_str, s->drive_serial_str);
> +}
> +
> +static void ide_device_initfn(Object *obj)
> +{
> +    object_property_add_str(obj, "drive-id", ide_device_get_model, NULL, NULL);
> +}
> +
>  static void ide_device_class_init(ObjectClass *klass, void *data)
>  {
>      DeviceClass *k = DEVICE_CLASS(klass);
> @@ -285,6 +299,7 @@ static const TypeInfo ide_device_type_info = {
>      .abstract = true,
>      .class_size = sizeof(IDEDeviceClass),
>      .class_init = ide_device_class_init,
> +    .instance_init = ide_device_initfn,

You recently said ..._initfn was only a workaround for avoiding ..._init
vs. ..._initfn name conflicts. I've therefore started changing new code
to that pattern. There is no conflicting ide_device_init here.

I don't really care which suffix we choose, but consistency is good.

>  };
>  
>  static void ide_register_types(void)

Regards,
Andreas

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