Merge branch 'tools-ynl-gen-fix-parse-multi-attr-enum-attribute'

Arkadiusz Kubalewski says:

====================
tools: ynl-gen: fix parse multi-attr enum attribute

Fix the issues with parsing enums in ynl.py script.
====================

Link: https://lore.kernel.org/r/20230725101642.267248-1-arkadiusz.kubalewski@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

tools/net/ynl/lib/ynl.py

@@ -417,28 +417,27 @@ def _add_attr(self, space, name, value):
         pad = b'\x00' * ((4 - len(attr_payload) % 4) % 4)
         return struct.pack('HH', len(attr_payload) + 4, nl_type) + attr_payload + pad
 
-    def _decode_enum(self, rsp, attr_spec):
-        raw = rsp[attr_spec['name']]
+    def _decode_enum(self, raw, attr_spec):
         enum = self.consts[attr_spec['enum']]
-        i = attr_spec.get('value-start', 0)
         if 'enum-as-flags' in attr_spec and attr_spec['enum-as-flags']:
+            i = 0
             value = set()
             while raw:
                 if raw & 1:
                     value.add(enum.entries_by_val[i].name)
                 raw >>= 1
                 i += 1
         else:
-            value = enum.entries_by_val[raw - i].name
-        rsp[attr_spec['name']] = value
+            value = enum.entries_by_val[raw].name
+        return value
 
     def _decode_binary(self, attr, attr_spec):
         if 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)
+                    decoded[m.name] = self._decode_enum(decoded[m.name], m)
         elif attr_spec.sub_type:
             decoded = attr.as_c_array(attr_spec.sub_type)
         else:
@@ -466,15 +465,16 @@ def _decode(self, attrs, space):
             else:
                 raise Exception(f'Unknown {attr_spec["type"]} with name {attr_spec["name"]}')
 
+            if 'enum' in attr_spec:
+                decoded = self._decode_enum(decoded, attr_spec)
+
             if not attr_spec.is_multi:
                 rsp[attr_spec['name']] = decoded
             elif attr_spec.name in rsp:
                 rsp[attr_spec.name].append(decoded)
             else:
                 rsp[attr_spec.name] = [decoded]
 
-            if 'enum' in attr_spec:
-                self._decode_enum(rsp, attr_spec)
         return rsp
 
     def _decode_extack_path(self, attrs, attr_set, offset, target):