Move the initial split of the prototype into its own function in the
ongoing effort to cut dump_struct() down to size.
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
Signed-off-by: Jonathan Corbet <corbet@xxxxxxx>
---
scripts/lib/kdoc/kdoc_parser.py | 43 +++++++++++++++------------------
1 file changed, 20 insertions(+), 23 deletions(-)
diff --git a/scripts/lib/kdoc/kdoc_parser.py b/scripts/lib/kdoc/kdoc_parser.py
index 3d007d200da6..ab896dcd9572 100644
--- a/scripts/lib/kdoc/kdoc_parser.py
+++ b/scripts/lib/kdoc/kdoc_parser.py
@@ -624,13 +624,11 @@ class KernelDoc:
self.emit_msg(ln,
f"No description found for return value of '{declaration_name}'")
- def dump_struct(self, ln, proto):
- """
- Store an entry for an struct or union
- """
-
+ #
+ # Split apart a structure prototype; returns (struct|union, name, members) or None
+ #
+ def split_struct_proto(self, proto):
type_pattern = r'(struct|union)'
-
qualifiers = [
"__attribute__",
"__packed",
@@ -638,34 +636,33 @@ class KernelDoc:
"____cacheline_aligned_in_smp",
"____cacheline_aligned",
]
-
definition_body = r'\{(.*)\}\s*' + "(?:" + '|'.join(qualifiers) + ")?"
- # Extract struct/union definition
- members = None
- declaration_name = None
- decl_type = None
-
r = KernRe(type_pattern + r'\s+(\w+)\s*' + definition_body)
if r.search(proto):
- decl_type = r.group(1)
- declaration_name = r.group(2)
- members = r.group(3)
+ return (r.group(1), r.group(2), r.group(3))
else:
r = KernRe(r'typedef\s+' + type_pattern + r'\s*' + definition_body + r'\s*(\w+)\s*;')
-
if r.search(proto):
- decl_type = r.group(1)
- declaration_name = r.group(3)
- members = r.group(2)
+ return (r.group(1), r.group(3), r.group(2))
+ return None
- if not members:
+ def dump_struct(self, ln, proto):
+ """
+ Store an entry for an struct or union
+ """
+ #
+ # Do the basic parse to get the pieces of the declaration.
+ #
+ struct_parts = self.split_struct_proto(proto)
+ if not struct_parts:
self.emit_msg(ln, f"{proto} error: Cannot parse struct or union!")
return
+ decl_type, declaration_name, members = struct_parts
if self.entry.identifier != declaration_name:
- self.emit_msg(ln,
- f"expecting prototype for {decl_type} {self.entry.identifier}. Prototype was for {decl_type} {declaration_name} instead\n")
+ self.emit_msg(ln, f"expecting prototype for {decl_type} {self.entry.identifier}. "
+ f"Prototype was for {decl_type} {declaration_name} instead\n")
return
#
# Go through the list of members applying all of our transformations.
@@ -695,7 +692,7 @@ class KernelDoc:
# So, we need to have an extra loop on Python to override such
# re limitation.
- struct_members = KernRe(type_pattern + r'([^\{\};]+)(\{)([^\{\}]*)(\})([^\{\};]*)(;)')
+ struct_members = KernRe(r'(struct|union)([^\{\};]+)(\{)([^\{\}]*)(\})([^\{\};]*)(;)')
while True:
tuples = struct_members.findall(members)
if not tuples:
--
2.50.1
