tools: ynl-gen: lift type requirement for attribute subsets

In case an attribute is used in a subset, the type has to be currently
specified. As the attribute is already defined in the original set, this
is a redundant information in yaml file, moreover, may lead to
inconsistencies.

Example:
attribute-sets:
    ...
    name: pin
    enum-name: dpll_a_pin
    attributes:
      ...
      -
        name: parent-id
        type: u32
      ...
  -
    name: pin-parent-device
    subset-of: pin
    attributes:
      -
        name: parent-id
        type: u32             <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

Remove the requirement from schema files to specify the "type" for
attribute subsets.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20231006114436.1725425-2-jiri@resnulli.usSigned-off-by: Jakub Kicinski <kuba@kernel.org>

Documentation/netlink/genetlink-c.yaml

@@ -142,7 +142,7 @@ properties:
           type: array
           items:
             type: object
-            required: [ name, type ]
+            required: [ name ]
             additionalProperties: False
             properties:
               name:
@@ -215,6 +215,18 @@ properties:
           not:
             required: [ name-prefix ]
 
+      # type property is only required if not in subset definition
+      if:
+        properties:
+          subset-of:
+            not:
+              type: string
+      then:
+        properties:
+          attributes:
+            items:
+              required: [ type ]
+
   operations:
     description: Operations supported by the protocol.
     type: object

Documentation/netlink/genetlink-legacy.yaml

@@ -180,7 +180,7 @@ properties:
           type: array
           items:
             type: object
-            required: [ name, type ]
+            required: [ name ]
             additionalProperties: False
             properties:
               name:
@@ -254,6 +254,18 @@ properties:
           not:
             required: [ name-prefix ]
 
+      # type property is only required if not in subset definition
+      if:
+        properties:
+          subset-of:
+            not:
+              type: string
+      then:
+        properties:
+          attributes:
+            items:
+              required: [ type ]
+
   operations:
     description: Operations supported by the protocol.
     type: object

Documentation/netlink/genetlink.yaml

@@ -115,7 +115,7 @@ properties:
           type: array
           items:
             type: object
-            required: [ name, type ]
+            required: [ name ]
             additionalProperties: False
             properties:
               name:
@@ -184,6 +184,18 @@ properties:
           not:
             required: [ name-prefix ]
 
+      # type property is only required if not in subset definition
+      if:
+        properties:
+          subset-of:
+            not:
+              type: string
+      then:
+        properties:
+          attributes:
+            items:
+              required: [ type ]
+
   operations:
     description: Operations supported by the protocol.
     type: object

Documentation/netlink/netlink-raw.yaml

@@ -187,7 +187,7 @@ properties:
           type: array
           items:
             type: object
-            required: [ name, type ]
+            required: [ name ]
             additionalProperties: False
             properties:
               name:
@@ -261,6 +261,18 @@ properties:
           not:
             required: [ name-prefix ]
 
+      # type property is only required if not in subset definition
+      if:
+        properties:
+          subset-of:
+            not:
+              type: string
+      then:
+        properties:
+          attributes:
+            items:
+              required: [ type ]
+
   operations:
     description: Operations supported by the protocol.
     type: object