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Message-Id: <20230527133107.68161-4-donald.hunter@gmail.com>
Date: Sat, 27 May 2023 14:31:06 +0100
From: Donald Hunter <donald.hunter@...il.com>
To: netdev@...r.kernel.org,
	Jakub Kicinski <kuba@...nel.org>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Paolo Abeni <pabeni@...hat.com>
Cc: donald.hunter@...hat.com,
	Donald Hunter <donald.hunter@...il.com>
Subject: [PATCH net-next v2 3/4] tools: ynl: Support enums in struct members in genetlink-legacy

Support decoding scalars as enums in struct members for genetlink-legacy
specs.

Signed-off-by: Donald Hunter <donald.hunter@...il.com>
---
 Documentation/netlink/genetlink-legacy.yaml | 3 +++
 tools/net/ynl/lib/nlspec.py                 | 2 ++
 tools/net/ynl/lib/ynl.py                    | 6 +++++-
 3 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/Documentation/netlink/genetlink-legacy.yaml b/Documentation/netlink/genetlink-legacy.yaml
index d8f132114308..ac4350498f5e 100644
--- a/Documentation/netlink/genetlink-legacy.yaml
+++ b/Documentation/netlink/genetlink-legacy.yaml
@@ -127,6 +127,9 @@ properties:
               doc:
                 description: Documentation for the struct member attribute.
                 type: string
+              enum:
+                description: Name of the enum type used for the attribute.
+                type: string
         # End genetlink-legacy
 
   attribute-sets:
diff --git a/tools/net/ynl/lib/nlspec.py b/tools/net/ynl/lib/nlspec.py
index c624cdfde223..ada22b073aa2 100644
--- a/tools/net/ynl/lib/nlspec.py
+++ b/tools/net/ynl/lib/nlspec.py
@@ -228,11 +228,13 @@ class SpecStructMember(SpecElement):
     Attributes:
         type        string, type of the member attribute
         byte_order  string or None for native byte order
+        enum        string, name of the enum definition
     """
     def __init__(self, family, yaml):
         super().__init__(family, yaml)
         self.type = yaml['type']
         self.byte_order = yaml.get('byte-order')
+        self.enum = yaml.get('enum')
 
 
 class SpecStruct(SpecElement):
diff --git a/tools/net/ynl/lib/ynl.py b/tools/net/ynl/lib/ynl.py
index 85ee6a4bee72..0692293447ad 100644
--- a/tools/net/ynl/lib/ynl.py
+++ b/tools/net/ynl/lib/ynl.py
@@ -412,7 +412,11 @@ class YnlFamily(SpecFamily):
 
     def _decode_binary(self, attr, attr_spec):
         if attr_spec.struct_name:
-            decoded = attr.as_struct(self.consts[attr_spec.struct_name])
+            members = self.consts[attr_spec.struct_name]
+            decoded = attr.as_struct(members)
+            for m in members:
+                if m.enum:
+                    self._decode_enum(decoded, m)
         elif attr_spec.sub_type:
             decoded = attr.as_c_array(attr_spec.sub_type)
         else:
-- 
2.39.0


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