Re: [PATCH] qom/object_interfaces: Handle `len-` property first

["Daniel P. Berrangé" <berrange@redhat.com>]

On Tue, Oct 24, 2023 at 08:53:31AM +0000, Lu Gao wrote:
> ping
> 
> https://patchew.org/QEMU/20230921141634.26233-1-lu.gao@verisilicon.com/
> 
> Could you please help review the patch?
> 
> Thanks.
> B.R.
> 
> -----Original Message-----
> From: Lu Gao 
> Sent: Thursday, September 21, 2023 10:17 PM
> To: qemu-devel@nongnu.org
> Cc: Lu Gao; Jianxian Wen; Paolo Bonzini; Daniel P. Berrangé; Eduardo Habkost
> Subject: [PATCH] qom/object_interfaces: Handle `len-` property first
> 
> From: "Gao, Lu" <lu.gao@verisilicon.com>
> 
> Array property needs corresponding `len-` property set first to add
> actual array properties. Then we need to make sure `len-` property is
> set first before array property.
> 
> But when the model is used with like
> `-device driver[,prop[=value][,...]]`
> in QEMU command line options, this is not guaranteed in current
> property set from qdict. Array property might be
> handled before 'len-' property, then leads to an error.
> 
> Signed-off-by: Lu Gao <lu.gao@verisilicon.com>
> Signed-off-by: Jianxian Wen <jianxian.wen@verisilicon.com>
> ---
>  qom/object_interfaces.c | 19 +++++++++++++++++--
>  1 file changed, 17 insertions(+), 2 deletions(-)

This approach has already been rejected in favour of a new impl
strategy for array properties shown in this series:

https://lists.nongnu.org/archive/html/qemu-devel/2023-09/msg01832.html

NB the syntax will change on the CLI


With regards,
Daniel
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