Re: [Qemu-devel] [PATCH] spapr/vio: remove the "irq" property"

[Greg Kurz <groug@kaod.org>]

On Wed,  9 Jan 2019 11:30:28 +0100
Cédric Le Goater <clg@kaod.org> wrote:

> commit efe2add7cb7f ("spapr/vio: deprecate the "irq" property") was
> merged in QEMU version 3.0. The "irq" property" can be removed for
> QEMU version 4.0, 2 version later.
> 
> Signed-off-by: Cédric Le Goater <clg@kaod.org>
> ---
> 

The change in the code looks good but...

>  The machine uselessly allocates an IRQ number for the sPAPR NVRAM.
>  This is harmless but still a little ugly.
> 
>  hw/ppc/spapr_vio.c | 47 ++++++----------------------------------------

... but qemu-deprecated.texi still contains this subsection:

@subsection vio-spapr-device device options

@subsubsection "irq": "" (since 3.0.0)

The ``irq'' property is obsoleted.

It should be removed in this patch as well.

Another file that usually needs patching is qemu-options.hx, but we don't
need it as it doesn't contain any sPAPR related documentation.

With the subsection removed from qemu-deprecated.texi,

Reviewed-by: Greg Kurz <groug@kaod.org>

>  1 file changed, 6 insertions(+), 41 deletions(-)
> 
> diff --git a/hw/ppc/spapr_vio.c b/hw/ppc/spapr_vio.c
> index 7e8a9ad09337..414673d31341 100644
> --- a/hw/ppc/spapr_vio.c
> +++ b/hw/ppc/spapr_vio.c
> @@ -44,38 +44,6 @@
>  
>  #define SPAPR_VIO_REG_BASE 0x71000000
>  
> -static void spapr_vio_get_irq(Object *obj, Visitor *v, const char *name,
> -                              void *opaque, Error **errp)
> -{
> -    Property *prop = opaque;
> -    uint32_t *ptr = qdev_get_prop_ptr(DEVICE(obj), prop);
> -
> -    visit_type_uint32(v, name, ptr, errp);
> -}
> -
> -static void spapr_vio_set_irq(Object *obj, Visitor *v, const char *name,
> -                              void *opaque, Error **errp)
> -{
> -    Property *prop = opaque;
> -    uint32_t *ptr = qdev_get_prop_ptr(DEVICE(obj), prop);
> -
> -    if (!qtest_enabled()) {
> -        warn_report(TYPE_VIO_SPAPR_DEVICE " '%s' property is deprecated", name);
> -    }
> -    visit_type_uint32(v, name, ptr, errp);
> -}
> -
> -static const PropertyInfo spapr_vio_irq_propinfo = {
> -    .name = "irq",
> -    .get = spapr_vio_get_irq,
> -    .set = spapr_vio_set_irq,
> -};
> -
> -static Property spapr_vio_props[] = {
> -    DEFINE_PROP("irq", VIOsPAPRDevice, irq, spapr_vio_irq_propinfo, uint32_t),
> -    DEFINE_PROP_END_OF_LIST(),
> -};
> -
>  static char *spapr_vio_get_dev_name(DeviceState *qdev)
>  {
>      VIOsPAPRDevice *dev = VIO_SPAPR_DEVICE(qdev);
> @@ -534,15 +502,13 @@ static void spapr_vio_busdev_realize(DeviceState *qdev, Error **errp)
>          dev->qdev.id = id;
>      }
>  
> -    if (!dev->irq) {
> -        dev->irq = spapr_vio_reg_to_irq(dev->reg);
> +    dev->irq = spapr_vio_reg_to_irq(dev->reg);
>  
> -        if (SPAPR_MACHINE_GET_CLASS(spapr)->legacy_irq_allocation) {
> -            dev->irq = spapr_irq_findone(spapr, &local_err);
> -            if (local_err) {
> -                error_propagate(errp, local_err);
> -                return;
> -            }
> +    if (SPAPR_MACHINE_GET_CLASS(spapr)->legacy_irq_allocation) {
> +        dev->irq = spapr_irq_findone(spapr, &local_err);
> +        if (local_err) {
> +            error_propagate(errp, local_err);
> +            return;
>          }
>      }
>  
> @@ -668,7 +634,6 @@ static void vio_spapr_device_class_init(ObjectClass *klass, void *data)
>      k->realize = spapr_vio_busdev_realize;
>      k->reset = spapr_vio_busdev_reset;
>      k->bus_type = TYPE_SPAPR_VIO_BUS;
> -    k->props = spapr_vio_props;
>  }
>  
>  static const TypeInfo spapr_vio_type_info = {