From aa710cee0d677043f49a447c4665df51a553a2ba Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Tue, 14 Jan 2025 00:00:46 +0900 Subject: [PATCH] genksyms: restrict direct-declarator to take one parameter-type-list Similar to the previous commit, this change makes the parser logic a little more accurate. Currently, genksyms accepts the following invalid code: struct foo { int (*callback)(int)(int)(int); }; A direct-declarator should not recursively absorb multiple ( parameter-type-list ) constructs. In the example above, (*callback) should be followed by at most one (int). Signed-off-by: Masahiro Yamada Acked-by: Nicolas Schier --- scripts/genksyms/parse.y | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/scripts/genksyms/parse.y b/scripts/genksyms/parse.y index 03cdd8d53c13..33a6aab53b69 100644 --- a/scripts/genksyms/parse.y +++ b/scripts/genksyms/parse.y @@ -331,12 +331,16 @@ nested_declarator: ; direct_nested_declarator: - IDENT { $$ = $1; dont_want_type_specifier = false; } - | direct_nested_declarator '(' parameter_declaration_clause ')' + direct_nested_declarator1 + | direct_nested_declarator1 '(' parameter_declaration_clause ')' { $$ = $4; } - | direct_nested_declarator '(' error ')' + ; + +direct_nested_declarator1: + IDENT { $$ = $1; dont_want_type_specifier = false; } + | direct_nested_declarator1 '(' error ')' { $$ = $4; } - | direct_nested_declarator BRACKET_PHRASE + | direct_nested_declarator1 BRACKET_PHRASE { $$ = $2; } | '(' nested_declarator ')' { $$ = $3; } -- 2.50.1