netdev - Re: Netlink specs, help dealing with nested array

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Date: Fri, 21 Jun 2024 16:27:57 +0100
From: Donald Hunter <donald.hunter@...il.com>
To: Jakub Kicinski <kuba@...nel.org>
Cc: Kory Maincent <kory.maincent@...tlin.com>, netdev@...r.kernel.org
Subject: Re: Netlink specs, help dealing with nested array

On Fri, 21 Jun 2024 at 16:19, Jakub Kicinski <kuba@...nel.org> wrote:
>
> On Fri, 21 Jun 2024 16:15:43 +0200 Kory Maincent wrote:
> > Hello Jakub, Donald or other ynl experts,
> >
> > I have an issue dealing with a nested array.
> >
> > Here is my current netlink spec and ethtool patches:
> > https://termbin.com/gbyx
> > https://termbin.com/b325
> >
> > Here is the error I got:
> > https://termbin.com/c7b1
> >
> > I am trying to investigate what goes wrong with ynl but I still don't know.
> > If someone have an idea of what is going wrong with ynl or my specs it would be
> > lovely!
>
> You're (correctly) formatting your data as a basic multi-attr.
> Instead of:
>
> +        name: c33-pse-pw-limit-ranges
> +        name-prefix: ethtool-a-
> +        type: indexed-array
> +        sub-type: nest
> +        nested-attributes: c33-pse-pw-limit
>
> use:
>
> +        name: c33-pse-pw-limit-ranges
> +        name-prefix: ethtool-a-
> +        type: nest
> +        multi-attr: true
> +        nested-attributes: c33-pse-pw-limit

Ah yes, I was "fixing" things in the wrong direction. Sorry for the confusion.