linux-kernel - Re: [PATCH net-next 09/16] dt-bindings: net: dwmac: Prohibit additional props in AXI-config

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Date:   Thu, 23 Mar 2023 14:37:48 +0300
From:   Serge Semin <fancer.lancer@...il.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Serge Semin <Sergey.Semin@...kalelectronics.ru>,
        Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Jose Abreu <joabreu@...opsys.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>,
        Pavel Parkhomenko <Pavel.Parkhomenko@...kalelectronics.ru>,
        Christian Marangi <ansuelsmth@...il.com>,
        Richard Cochran <richardcochran@...il.com>,
        Biao Huang <biao.huang@...iatek.com>,
        Yang Yingliang <yangyingliang@...wei.com>,
        devicetree@...r.kernel.org, netdev@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next 09/16] dt-bindings: net: dwmac: Prohibit
 additional props in AXI-config

On Thu, Mar 16, 2023 at 09:06:04AM +0100, Krzysztof Kozlowski wrote:
> On 13/03/2023 23:50, Serge Semin wrote:
> > Currently DT-schema of the AXI-bus config sub-node prohibits to have
> > unknown properties by using the unevaluatedProperties property. It's
> > overkill for the sub-node which doesn't use any combining schemas
> > keywords (allOf, anyOf, etc). Instead more natural is to use
> > additionalProperties to prohibit for that.
> > 
> > Signed-off-by: Serge Semin <Sergey.Semin@...kalelectronics.ru>
> > ---
> >  Documentation/devicetree/bindings/net/snps,dwmac.yaml | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> > 
> > diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
> > index 89be67e55c3e..d1b2910b799b 100644
> > --- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
> > +++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
> > @@ -466,7 +466,6 @@ properties:
> >  
> >    stmmac-axi-config:
> >      type: object
> > -    unevaluatedProperties: false
> >      description:
> >        AXI BUS Mode parameters.
> >  
> > @@ -518,6 +517,8 @@ properties:
> >          description:
> >            rebuild INCRx Burst
> >  
> > +    additionalProperties: false
> 
> But why moving it? Keep the same placement.

No firm justification except that vast majority of DT bindings have
that keyword placed at the tail of the schema body. Anyway I'll get
the it back to the original line.

-Serge(y)

> 
> Best regards,
> Krzysztof
>