Coding style says: "Put a space between the ``()`` used in a cast and the expression whose type is cast: ``(void *) 0``.". This style rule is frequently overlooked. Let's check for it.
Signed-off-by: Ilya Maximets <i.maxim...@ovn.org> --- tests/checkpatch.at | 17 +++++++++++++++++ utilities/checkpatch.py | 13 +++++++++++++ 2 files changed, 30 insertions(+) diff --git a/tests/checkpatch.at b/tests/checkpatch.at index 6c7394772..a51e46e7a 100755 --- a/tests/checkpatch.at +++ b/tests/checkpatch.at @@ -326,3 +326,20 @@ try_checkpatch \ " AT_CLEANUP + +AT_SETUP([checkpatch - whitespace around cast]) +try_checkpatch \ + "COMMON_PATCH_HEADER + + (int) a; + " + +try_checkpatch \ + "COMMON_PATCH_HEADER + + (int)a; + " \ + "ERROR: Inappropriate spacing around cast + #8 FILE: A.c:1: + (int)a; +" + +AT_CLEANUP diff --git a/utilities/checkpatch.py b/utilities/checkpatch.py index ed231fa6f..681de12ce 100755 --- a/utilities/checkpatch.py +++ b/utilities/checkpatch.py @@ -167,6 +167,7 @@ __regex_is_for_if_single_line_bracket = \ __regex_ends_with_bracket = \ re.compile(r'[^\s]\) {(\s+/\*[\s\Sa-zA-Z0-9\.,\?\*/+-]*)?$') __regex_ptr_declaration_missing_whitespace = re.compile(r'[a-zA-Z0-9]\*[^*]') +__regex_cast_missing_whitespace = re.compile(r'\)[a-zA-Z0-9]') __regex_is_comment_line = re.compile(r'^\s*(/\*|\*\s)') __regex_has_comment = re.compile(r'.*(/\*|\*\s)') __regex_has_c99_comment = re.compile(r'.*//.*$') @@ -286,6 +287,12 @@ def pointer_whitespace_check(line): return __regex_ptr_declaration_missing_whitespace.search(line) is not None +def cast_whitespace_check(line): + """Return TRUE if there is no space between the '()' used in a cast and + the expression whose type is cast, i.e.: '(void *)foo'""" + return __regex_cast_missing_whitespace.search(line) is not None + + def line_length_check(line): """Return TRUE if the line length is too long""" if len(line) > 79: @@ -551,6 +558,12 @@ checks = [ 'print': lambda: print_error("Inappropriate spacing in pointer declaration")}, + {'regex': r'(\.c|\.h)(\.in)?$', 'match_name': None, + 'prereq': lambda x: not is_comment_line(x), + 'check': lambda x: cast_whitespace_check(x), + 'print': + lambda: print_error("Inappropriate spacing around cast")}, + {'regex': r'(\.c|\.h)(\.in)?$', 'match_name': None, 'prereq': lambda x: not is_comment_line(x), 'check': lambda x: trailing_operator(x), -- 2.25.4 _______________________________________________ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev