linux-kernel - Re: [PATCH net-next v4 1/7] dt-bindings: net: dsa: Require ports or ethernet-ports

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Message-ID: <ZTEg62nZtYXW2Uid@shell.armlinux.org.uk>
Date:   Thu, 19 Oct 2023 13:28:27 +0100
From:   "Russell King (Oracle)" <linux@...linux.org.uk>
To:     Conor Dooley <conor@...nel.org>
Cc:     Rob Herring <robh@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Christian Marangi <ansuelsmth@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        linux-arm-kernel@...ts.infradead.org,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        devicetree@...r.kernel.org, Conor Dooley <conor+dt@...nel.org>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Eric Dumazet <edumazet@...gle.com>,
        Vladimir Oltean <olteanv@...il.com>,
        Rob Herring <robh+dt@...nel.org>, netdev@...r.kernel.org,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        "David S. Miller" <davem@...emloft.net>,
        linux-kernel@...r.kernel.org,
        Gregory Clement <gregory.clement@...tlin.com>
Subject: Re: [PATCH net-next v4 1/7] dt-bindings: net: dsa: Require ports or
 ethernet-ports

On Thu, Oct 19, 2023 at 01:03:41PM +0100, Conor Dooley wrote:
> On Wed, Oct 18, 2023 at 05:32:48AM -0500, Rob Herring wrote:
> > 
> > On Wed, 18 Oct 2023 11:03:40 +0200, Linus Walleij wrote:
> > > Bindings using dsa.yaml#/$defs/ethernet-ports specify that
> > > a DSA switch node need to have a ports or ethernet-ports
> > > subnode, and that is actually required, so add requirements
> > > using oneOf.
> > > 
> > > Suggested-by: Rob Herring <robh@...nel.org>
> > > Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
> > > ---
> > >  Documentation/devicetree/bindings/net/dsa/dsa.yaml | 6 ++++++
> > >  1 file changed, 6 insertions(+)
> > > 
> > 
> > My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
> > on your patch (DT_CHECKER_FLAGS is new in v5.13):
> > 
> > yamllint warnings/errors:
> > ./Documentation/devicetree/bindings/net/dsa/dsa.yaml:60:7: [warning] wrong indentation: expected 8 but found 6 (indentation)
> > ./Documentation/devicetree/bindings/net/dsa/dsa.yaml:62:7: [warning] wrong indentation: expected 8 but found 6 (indentation)
> > 
> > dtschema/dtc warnings/errors:
> > Traceback (most recent call last):
> >   File "/usr/local/bin/dt-doc-validate", line 64, in <module>
> >     ret |= check_doc(f)
> >            ^^^^^^^^^^^^
> >   File "/usr/local/bin/dt-doc-validate", line 32, in check_doc
> >     for error in sorted(dtsch.iter_errors(), key=lambda e: e.linecol):
> >                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> >   File "/usr/local/lib/python3.11/dist-packages/dtschema/schema.py", line 125, in iter_errors
> >     self.annotate_error(scherr, meta_schema, scherr.schema_path)
> >   File "/usr/local/lib/python3.11/dist-packages/dtschema/schema.py", line 104, in annotate_error
> >     schema = schema[p]
> >              ~~~~~~^^^
> > KeyError: 'type'
> 
> Locally, on an older version of dt-schema, I see
> /stuff/linux-dt/Documentation/devicetree/bindings/net/dsa/dsa.yaml: $defs: 'oneOf' should not be valid under {'$ref': '#/definitions/json-schema-prop-names'}
> 	hint: A json-schema keyword was found in $defs key.
> 	from schema $id: http://devicetree.org/meta-schemas/core.yaml#
> /stuff/linux-dt/Documentation/devicetree/bindings/net/dsa/dsa.yaml: $defs:oneOf: [{'required': ['ports']}, {'required': ['ethernet-ports']}] is not of type 'object'
> 	hint: $defs entries must contain schemas
> 	from schema $id: http://devicetree.org/meta-schemas/core.yaml#
>   SCHEMA  Documentation/devicetree/bindings/processed-schema.json
> 
> On the latest version I see the error from the bot.
> 
> Doing 
> diff --git a/Documentation/devicetree/bindings/net/dsa/dsa.yaml b/Documentation/devicetree/bindings/net/dsa/dsa.yaml
> index bd6948e4fd9e..25e5950d51ae 100644
> --- a/Documentation/devicetree/bindings/net/dsa/dsa.yaml
> +++ b/Documentation/devicetree/bindings/net/dsa/dsa.yaml
> @@ -55,10 +55,10 @@ $defs:
>              $ref: dsa-port.yaml#
>              unevaluatedProperties: false
>  
> -  oneOf:
> -    - required:
> -      - ports
> -    - required:
> -      - ethernet-ports
> +oneOf:
> +  - required:
> +    - ports
> +  - required:
> +    - ethernet-ports
>  
>  ...
> 
> resolves both issues, but the older version of dt-schema definitely had
> better error reporting in this case!

And now I'm even more confused... your example in your other reply had
six spaces before "- ports" and "- ethernet-ports" but here you're
using four spaces.

-- 
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