tools: ynl-gen: consider dump ops without a do "type-consistent"

If the type for the response to do and dump are the same we don't
generate it twice. This is called "type_consistent" in the generator.
Consider operations which only have dump to also be consistent.
This removes unnecessary "_dump" from the names. There's a number
of GET ops in classic Netlink which only have dump handlers.

Make sure we output the "onesided" types, normally if the type
is consistent we only output it when we render the do structures.

Reviewed-by: Jacob Keller <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

Author: kuba-moo

tools/net/ynl/pyynl/ynl_gen_c.py

@@ -1212,14 +1212,16 @@ def __init__(self, cw, family, ku_space, op, op_mode, attr_set=None):
 
         # 'do' and 'dump' response parsing is identical
         self.type_consistent = True
+        self.type_oneside = False
         if op_mode != 'do' and 'dump' in op:
             if 'do' in op:
                 if ('reply' in op['do']) != ('reply' in op["dump"]):
                     self.type_consistent = False
                 elif 'reply' in op['do'] and op["do"]["reply"] != op["dump"]["reply"]:
                     self.type_consistent = False
             else:
-                self.type_consistent = False
+                self.type_consistent = True
+                self.type_oneside = True
 
         self.attr_set = attr_set
         if not self.attr_set:
@@ -1516,7 +1518,9 @@ def op_prefix(ri, direction, deref=False):
         suffix += f"{direction_to_suffix[direction]}"
     else:
         if direction == 'request':
-            suffix += '_req_dump'
+            suffix += '_req'
+            if not ri.type_oneside:
+                suffix += '_dump'
         else:
             if ri.type_consistent:
                 if deref:
@@ -1995,7 +1999,7 @@ def _print_type(ri, direction, struct):
     if not direction and ri.type_name_conflict:
         suffix += '_'
 
-    if ri.op_mode == 'dump':
+    if ri.op_mode == 'dump' and not ri.type_oneside:
         suffix += '_dump'
 
     ri.cw.block_start(line=f"struct {ri.family.c_name}{suffix}")
@@ -2979,7 +2983,7 @@ def main():
                     ri = RenderInfo(cw, parsed, args.mode, op, 'dump')
                     print_req_type(ri)
                     print_req_type_helpers(ri)
-                    if not ri.type_consistent:
+                    if not ri.type_consistent or ri.type_oneside:
                         print_rsp_type(ri)
                     print_wrapped_type(ri)
                     print_dump_prototype(ri)
@@ -3057,7 +3061,7 @@ def main():
                 if 'dump' in op:
                     cw.p(f"/* {op.enum_name} - dump */")
                     ri = RenderInfo(cw, parsed, args.mode, op, "dump")
-                    if not ri.type_consistent:
+                    if not ri.type_consistent or ri.type_oneside:
                         parse_rsp_msg(ri, deref=True)
                     print_req_free(ri)
                     print_dump_type_free(ri)