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docs: kdoc: tighten up the pointer-to-function case

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Tighten up the code and remove an unneeded regex operation.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250814154035.328769-7-corbet@lwn.net
This commit is contained in:
Jonathan Corbet
2025-08-14 09:40:34 -06:00
parent bf6b310d1b
commit e5d91662fc
1 changed files with 8 additions and 9 deletions
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17
scripts/lib/kdoc/kdoc_parser.py
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@@ -511,22 +511,21 @@ class KernelDoc:
# Treat preprocessor directive as a typeless variable
self.push_parameter(ln, decl_type, arg, "",
"", declaration_name)
#
# The pointer-to-function case.
#
elif KernRe(r'\(.+\)\s*\(').search(arg):
# Pointer-to-function
arg = arg.replace('#', ',')
r = KernRe(r'[^\(]+\(\*?\s*([\w\[\].]*)\s*\)')
r = KernRe(r'[^\(]+\(\*?\s*' # Everything up to "(*"
r'([\w\[\].]*)' # Capture the name and possible [array]
r'\s*\)') # Make sure the trailing ")" is there
if r.match(arg):
param = r.group(1)
else:
self.emit_msg(ln, f"Invalid param: {arg}")
param = arg
dtype = KernRe(r'([^\(]+\(\*?)\s*' + re.escape(param)).sub(r'\1', arg)
self.push_parameter(ln, decl_type, param, dtype,
arg, declaration_name)
dtype = arg.replace(param, '')
self.push_parameter(ln, decl_type, param, dtype, arg, declaration_name)
#
# The array-of-pointers case. Dig the parameter name out from the middle
# of the declaration.