Re: [RFC v3] scripts: kernel-doc: fix typedef support for struct/union parsing

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On Thu, Feb 25, 2021 at 08:20:33PM +0530, Aditya Srivastava wrote:
> +++ b/scripts/kernel-doc
> @@ -1201,12 +1201,23 @@ sub dump_union($$) {
>  sub dump_struct($$) {
>      my $x = shift;
>      my $file = shift;
> +    my $decl_type;
> +    my $members;
> +    my $type = qr{struct|union};
> +    # For capturing struct/union definition body, i.e. "{members*}qualifiers*"
> +    my $definition_body = qr{\{(.*)\}(?:\s*(?:__packed|__aligned|____cacheline_aligned_in_smp|____cacheline_aligned|__attribute__\s*\(\([a-z0-9,_\s\(\)]*\)\)))*};
> -    if ($x =~ /(struct|union)\s+(\w+)\s*\{(.*)\}(\s*(__packed|__aligned|____cacheline_aligned_in_smp|____cacheline_aligned|__attribute__\s*\(\([a-z0-9,_\s\(\)]*\)\)))*/) {
> -	my $decl_type = $1;
> +    if ($x =~ /($type)\s+(\w+)\s*$definition_body/) {
> +	$decl_type = $1;
>  	$declaration_name = $2;
> -	my $members = $3;
> +	$members = $3;
> +    } elsif ($x =~ /typedef\s+($type)\s*$definition_body\s*(\w+)\s*;/) {
> +	$decl_type = $1;
> +	$declaration_name = $3;
> +	$members = $2;
> +    }

In the same spirit as dump_function, would something like this work?

-    if ($x =~ /(struct|union)\s+(\w+)\s*\{(.*)\}(\s*(__packed|__aligned|____cacheline_aligned_in_smp|____cacheline_aligned|__attribute__\s*\(\([a-z0-9,_\s\(\)]*\)\)))*/) {
+    $x =~ s/__packed +//;
+    $x =~ s/__aligned +//;
+    $x =~ s/____cacheline_aligned_in_smp +//;
+    $x =~ s/____cacheline_aligned +//;
+    $x =~ s/__attribute__\s*\(\([a-z0-9,_\s\(\)]*\)\)//;
+
+    if ($x =~ /(struct|union)\s+(\w+)\s*\{(.*)\}(\s*)*/) {




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