Re: [PATCH 01/11] qdev: Add qdev_prop_set_array()

[Kevin Wolf <kwolf@redhat.com>]

Am 27.10.2023 um 20:06 hat Peter Maydell geschrieben:
> On Fri, 8 Sept 2023 at 15:37, Kevin Wolf <kwolf@redhat.com> wrote:
> >
> > Instead of exposing the ugly hack of how we represent arrays in qdev (a
> > static "foo-len" property and after it is set, dynamically created
> > "foo[i]" properties) to boards, add an interface that allows setting the
> > whole array at once.
> >
> > Once all internal users of devices with array properties have been
> > converted to use this function, we can change the implementation to move
> > away from this hack.
> >
> > Signed-off-by: Kevin Wolf <kwolf@redhat.com>
> > ---
> >  include/hw/qdev-properties.h |  3 +++
> >  hw/core/qdev-properties.c    | 21 +++++++++++++++++++++
> >  2 files changed, 24 insertions(+)
> >
> > diff --git a/include/hw/qdev-properties.h b/include/hw/qdev-properties.h
> > index e1df08876c..7fa2fdb7c9 100644
> > --- a/include/hw/qdev-properties.h
> > +++ b/include/hw/qdev-properties.h
> > @@ -206,6 +206,9 @@ void qdev_prop_set_macaddr(DeviceState *dev, const char *name,
> >                             const uint8_t *value);
> >  void qdev_prop_set_enum(DeviceState *dev, const char *name, int value);
> >
> > +/* Takes ownership of @values */
> > +void qdev_prop_set_array(DeviceState *dev, const char *name, QList *values);
> > +
> >  void *object_field_prop_ptr(Object *obj, Property *prop);
> 
> Are we happy enough with this interface that I can take this single
> patch in a series that I'm doing (v2 of
> https://patchew.org/QEMU/20231017122302.1692902-1-peter.maydell@linaro.org/
> "arm/stellaris: convert gamepad input device to qdev"), or should
> I stick to the old style "set length and element properties by hand"
> code until this whole series has passed patch review (thus giving
> you another item to add to the conversion list) ? I went for "include
> this patch" in v1, but this series has spent longer in code review
> than I was anticipating at that point.

As far as I am concerned, feel free to include it in your series.

I'm also planning to send v2 of this series soon, I think I'm only
missing the build time assertion to check the correct alignment that
Markus wants to see.

Kevin