[PATCH net-next v1 04/13] tools: ynl: fix pylint dict, indentation, long lines, uninitialised

[Donald Hunter <donald.hunter@gmail.com>]

Fix pylint warnings for:

- use-dict-literal
- bad-indentation
- line-too-long
- possibly-used-before-assignment

Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
---
 tools/net/ynl/pyynl/lib/nlspec.py | 19 ++++++++--------
 tools/net/ynl/pyynl/lib/ynl.py    | 37 ++++++++++++++++---------------
 2 files changed, 29 insertions(+), 27 deletions(-)

diff --git a/tools/net/ynl/pyynl/lib/nlspec.py b/tools/net/ynl/pyynl/lib/nlspec.py
index a35f827f09e3..fcd4106d0cfa 100644
--- a/tools/net/ynl/pyynl/lib/nlspec.py
+++ b/tools/net/ynl/pyynl/lib/nlspec.py
@@ -129,8 +129,8 @@ class SpecEnumSet(SpecElement):
 
         prev_entry = None
         value_start = self.yaml.get('value-start', 0)
-        self.entries = dict()
-        self.entries_by_val = dict()
+        self.entries = {}
+        self.entries_by_val = {}
         for entry in self.yaml['entries']:
             e = self.new_entry(entry, prev_entry, value_start)
             self.entries[e.name] = e
@@ -451,6 +451,7 @@ class SpecFamily(SpecElement):
             stream.seek(0)
             spec = pyyaml.safe_load(stream)
 
+        self.fixed_header = None
         self._resolution_list = []
 
         super().__init__(self, spec)
@@ -579,13 +580,13 @@ class SpecFamily(SpecElement):
             self.msgs[op.name] = op
 
     def find_operation(self, name):
-      """
-      For a given operation name, find and return operation spec.
-      """
-      for op in self.yaml['operations']['list']:
-        if name == op['name']:
-          return op
-      return None
+        """
+        For a given operation name, find and return operation spec.
+        """
+        for op in self.yaml['operations']['list']:
+            if name == op['name']:
+                return op
+        return None
 
     def resolve(self):
         self.resolve_up(super())
diff --git a/tools/net/ynl/pyynl/lib/ynl.py b/tools/net/ynl/pyynl/lib/ynl.py
index 97229330c6c9..49c35568ceba 100644
--- a/tools/net/ynl/pyynl/lib/ynl.py
+++ b/tools/net/ynl/pyynl/lib/ynl.py
@@ -235,7 +235,7 @@ class NlMsg:
 
         self.extack = None
         if self.nl_flags & Netlink.NLM_F_ACK_TLVS and extack_off:
-            self.extack = dict()
+            self.extack = {}
             extack_attrs = NlAttrs(self.raw[extack_off:])
             for extack in extack_attrs:
                 if extack.type == Netlink.NLMSGERR_ATTR_MSG:
@@ -296,7 +296,8 @@ class NlMsg:
         return self.nl_type
 
     def __repr__(self):
-        msg = f"nl_len = {self.nl_len} ({len(self.raw)}) nl_flags = 0x{self.nl_flags:x} nl_type = {self.nl_type}"
+        msg = (f"nl_len = {self.nl_len} ({len(self.raw)}) "
+               f"nl_flags = 0x{self.nl_flags:x} nl_type = {self.nl_type}")
         if self.error:
             msg += '\n\terror: ' + str(self.error)
         if self.extack:
@@ -361,7 +362,7 @@ def _genl_load_families():
                     return
 
                 gm = GenlMsg(nl_msg)
-                fam = dict()
+                fam = {}
                 for attr in NlAttrs(gm.raw):
                     if attr.type == Netlink.CTRL_ATTR_FAMILY_ID:
                         fam['id'] = attr.as_scalar('u16')
@@ -370,7 +371,7 @@ def _genl_load_families():
                     elif attr.type == Netlink.CTRL_ATTR_MAXATTR:
                         fam['maxattr'] = attr.as_scalar('u32')
                     elif attr.type == Netlink.CTRL_ATTR_MCAST_GROUPS:
-                        fam['mcast'] = dict()
+                        fam['mcast'] = {}
                         for entry in NlAttrs(attr.raw):
                             mcast_name = None
                             mcast_id = None
@@ -390,6 +391,7 @@ class GenlMsg:
         self.nl = nl_msg
         self.genl_cmd, self.genl_version, _ = struct.unpack_from("BBH", nl_msg.raw, 0)
         self.raw = nl_msg.raw[4:]
+        self.raw_attrs = []
 
     def cmd(self):
         return self.genl_cmd
@@ -560,8 +562,7 @@ class YnlFamily(SpecFamily):
             for single_value in value:
                 scalar += enum.entries[single_value].user_value(as_flags = True)
             return scalar
-        else:
-            return enum.entries[value].user_value()
+        return enum.entries[value].user_value()
 
     def _get_scalar(self, attr_spec, value):
         try:
@@ -750,8 +751,7 @@ class YnlFamily(SpecFamily):
     def _decode_unknown(self, attr):
         if attr.is_nest:
             return self._decode(NlAttrs(attr.raw), None)
-        else:
-            return attr.as_bin()
+        return attr.as_bin()
 
     def _rsp_add(self, rsp, name, is_multi, decoded):
         if is_multi is None:
@@ -800,7 +800,8 @@ class YnlFamily(SpecFamily):
 
     # pylint: disable=too-many-statements
     def _decode(self, attrs, space, outer_attrs = None):
-        rsp = dict()
+        rsp = {}
+        search_attrs = {}
         if space:
             attr_space = self.attr_sets[space]
             search_attrs = SpaceAttrs(attr_space, rsp, outer_attrs)
@@ -818,7 +819,9 @@ class YnlFamily(SpecFamily):
 
             try:
                 if attr_spec["type"] == 'nest':
-                    subdict = self._decode(NlAttrs(attr.raw), attr_spec['nested-attributes'], search_attrs)
+                    subdict = self._decode(NlAttrs(attr.raw),
+                                           attr_spec['nested-attributes'],
+                                           search_attrs)
                     decoded = subdict
                 elif attr_spec["type"] == 'string':
                     decoded = attr.as_strz()
@@ -927,12 +930,11 @@ class YnlFamily(SpecFamily):
                     format_ = NlAttr.get_format(m.type, m.byte_order)
                     size += format_.size
             return size
-        else:
-            return 0
+        return 0
 
     def _decode_struct(self, data, name):
         members = self.consts[name].members
-        attrs = dict()
+        attrs = {}
         offset = 0
         for m in members:
             value = None
@@ -969,7 +971,7 @@ class YnlFamily(SpecFamily):
             elif m.type == 'binary':
                 if m.struct:
                     if value is None:
-                        value = dict()
+                        value = {}
                     attr_payload += self._encode_struct(m.struct, value)
                 else:
                     if value is None:
@@ -1026,7 +1028,7 @@ class YnlFamily(SpecFamily):
         return raw
 
     def handle_ntf(self, decoded):
-        msg = dict()
+        msg = {}
         if self.include_raw:
             msg['raw'] = decoded
         op = self.rsp_by_value[decoded.cmd()]
@@ -1166,9 +1168,8 @@ class YnlFamily(SpecFamily):
                     if decoded.cmd() in self.async_msg_ids:
                         self.handle_ntf(decoded)
                         continue
-                    else:
-                        print('Unexpected message: ' + repr(decoded))
-                        continue
+                    print('Unexpected message: ' + repr(decoded))
+                    continue
 
                 rsp_msg = self._decode(decoded.raw_attrs, op.attr_set.name)
                 if op.fixed_header:
-- 
2.52.0