Fix pylint warnings for:

- unused-argument
- consider-using-in
- consider-using-get
- consider-using-f-string
- protected-access
- unidiomatic-typecheck
- no-else-return

Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
---
 tools/net/ynl/pyynl/lib/doc_generator.py |  3 +--
 tools/net/ynl/pyynl/lib/nlspec.py        |  5 ++---
 tools/net/ynl/pyynl/lib/ynl.py           | 16 ++++++++--------
 3 files changed, 11 insertions(+), 13 deletions(-)

diff --git a/tools/net/ynl/pyynl/lib/doc_generator.py b/tools/net/ynl/pyynl/lib/doc_generator.py
index 3a16b8eb01ca..d1afff9d9956 100644
--- a/tools/net/ynl/pyynl/lib/doc_generator.py
+++ b/tools/net/ynl/pyynl/lib/doc_generator.py
@@ -109,8 +109,7 @@ class RstFormatters:
                     'fixed-header': 'definition',
                     'nested-attributes': 'attribute-set',
                     'struct': 'definition'}
-        if prefix in mappings:
-            prefix = mappings[prefix]
+        prefix = mappings.get(prefix, prefix)
         return f":ref:`{namespace}-{prefix}-{name}`"
 
     def rst_header(self) -> str:
diff --git a/tools/net/ynl/pyynl/lib/nlspec.py b/tools/net/ynl/pyynl/lib/nlspec.py
index fcd4106d0cfa..f3173146b64b 100644
--- a/tools/net/ynl/pyynl/lib/nlspec.py
+++ b/tools/net/ynl/pyynl/lib/nlspec.py
@@ -105,8 +105,7 @@ class SpecEnumEntry(SpecElement):
     def user_value(self, as_flags=None):
         if self.enum_set['type'] == 'flags' or as_flags:
             return 1 << self.value
-        else:
-            return self.value
+        return self.value
 
 
 class SpecEnumSet(SpecElement):
@@ -194,7 +193,7 @@ class SpecAttr(SpecElement):
         self.sub_message = yaml.get('sub-message')
         self.selector = yaml.get('selector')
 
-        self.is_auto_scalar = self.type == "sint" or self.type == "uint"
+        self.is_auto_scalar = self.type in ("sint", "uint")
 
 
 class SpecAttrSet(SpecElement):
diff --git a/tools/net/ynl/pyynl/lib/ynl.py b/tools/net/ynl/pyynl/lib/ynl.py
index 49c35568ceba..2ad954f885f3 100644
--- a/tools/net/ynl/pyynl/lib/ynl.py
+++ b/tools/net/ynl/pyynl/lib/ynl.py
@@ -415,7 +415,7 @@ class NetlinkProtocol:
         nlmsg = struct.pack("HHII", nl_type, nl_flags, seq, 0)
         return nlmsg
 
-    def message(self, flags, command, version, seq=None):
+    def message(self, flags, command, _version, seq=None):
         return self._message(command, flags, seq)
 
     def _decode(self, nl_msg):
@@ -425,7 +425,7 @@ class NetlinkProtocol:
         msg = self._decode(nl_msg)
         if op is None:
             op = ynl.rsp_by_value[msg.cmd()]
-        fixed_header_size = ynl._struct_size(op.fixed_header)
+        fixed_header_size = ynl.struct_size(op.fixed_header)
         msg.raw_attrs = NlAttrs(msg.raw, fixed_header_size)
         return msg
 
@@ -755,7 +755,7 @@ class YnlFamily(SpecFamily):
 
     def _rsp_add(self, rsp, name, is_multi, decoded):
         if is_multi is None:
-            if name in rsp and type(rsp[name]) is not list:
+            if name in rsp and not isinstance(rsp[name], list):
                 rsp[name] = [rsp[name]]
                 is_multi = True
             else:
@@ -788,7 +788,7 @@ class YnlFamily(SpecFamily):
         offset = 0
         if msg_format.fixed_header:
             decoded.update(self._decode_struct(attr.raw, msg_format.fixed_header))
-            offset = self._struct_size(msg_format.fixed_header)
+            offset = self.struct_size(msg_format.fixed_header)
         if msg_format.attr_set:
             if msg_format.attr_set in self.attr_sets:
                 subdict = self._decode(NlAttrs(attr.raw, offset), msg_format.attr_set)
@@ -908,7 +908,7 @@ class YnlFamily(SpecFamily):
             return
 
         msg = self.nlproto.decode(self, NlMsg(request, 0, op.attr_set), op)
-        offset = self.nlproto.msghdr_size() + self._struct_size(op.fixed_header)
+        offset = self.nlproto.msghdr_size() + self.struct_size(op.fixed_header)
         search_attrs = SpaceAttrs(op.attr_set, vals)
         path = self._decode_extack_path(msg.raw_attrs, op.attr_set, offset,
                                         extack['bad-attr-offs'], search_attrs)
@@ -916,14 +916,14 @@ class YnlFamily(SpecFamily):
             del extack['bad-attr-offs']
             extack['bad-attr'] = path
 
-    def _struct_size(self, name):
+    def struct_size(self, name):
         if name:
             members = self.consts[name].members
             size = 0
             for m in members:
                 if m.type in ['pad', 'binary']:
                     if m.struct:
-                        size += self._struct_size(m.struct)
+                        size += self.struct_size(m.struct)
                     else:
                         size += m.len
                 else:
@@ -987,7 +987,7 @@ class YnlFamily(SpecFamily):
 
     def _formatted_string(self, raw, display_hint):
         if display_hint == 'mac':
-            formatted = ':'.join('%02x' % b for b in raw)
+            formatted = ':'.join(f'{b:x}' for b in raw)
         elif display_hint == 'hex':
             if isinstance(raw, int):
                 formatted = hex(raw)
-- 
2.52.0