Some annotations macros may have nested parenthesis, causing normal
regex parsing to fail. The __attribute__ regex is currently very
complex to try to avoid that, but it doesn't catch all cases.

Ensure that the parenthesis will be properly handled by using
the NestedMatch() logic.

Signed-off-by: Mauro Carvalho Chehab <[email protected]>
Acked-by: Randy Dunlap <[email protected]>
Tested-by: Randy Dunlap <[email protected]>
---
 tools/lib/python/kdoc/kdoc_parser.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/lib/python/kdoc/kdoc_parser.py 
b/tools/lib/python/kdoc/kdoc_parser.py
index ae5b2ef80f75..64165d8df84e 100644
--- a/tools/lib/python/kdoc/kdoc_parser.py
+++ b/tools/lib/python/kdoc/kdoc_parser.py
@@ -165,6 +165,7 @@ struct_nested_prefixes = [
 # the start delimiter.
 #
 function_nested_prefixes = [
+    (re.compile(r"__attribute__\s*\("), ""),
 ]
 
 #
@@ -195,7 +196,6 @@ function_xforms = [
     (KernRe(r"__diagnose_as\s*\(\s*\S+\s*(?:,\s*\d+\s*)*\) +"), ""),
     (KernRe(r"DECL_BUCKET_PARAMS\s*\(\s*(\S+)\s*,\s*(\S+)\s*\)"), r"\1, \2"),
     (KernRe(r"__attribute_const__ +"), ""),
-    (KernRe(r"__attribute__\s*\(\((?:[\w\s]+(?:\([^)]*\))?\s*,?)+\)\)\s+"), 
""),
 ]
 
 #
-- 
2.52.0


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