linux-hardening - Re: [PATCH] scripts: kernel-doc: Bug fixed for erroneous warning

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Date: Wed, 20 Dec 2023 08:30:03 -0700
From: Jonathan Corbet <corbet@....net>
To: Muhammad Muzammil <m.muzzammilashraf@...il.com>, rdunlap@...radead.org,
 gustavoars@...nel.org
Cc: linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-hardening@...r.kernel.org, Muzammil Ashraf
 <m.muzzammilashraf@...il.com>
Subject: Re: [PATCH] scripts: kernel-doc: Bug fixed for erroneous warning

Muhammad Muzammil <m.muzzammilashraf@...il.com> writes:

> From: Muzammil Ashraf <m.muzzammilashraf@...il.com>
>
> kernel-doc: fixed erroneous warning generated by '__counted_by'
>
> Signed-off-by: Muzammil Ashraf <m.muzzammilashraf@...il.com>
> ---
>  scripts/kernel-doc | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/scripts/kernel-doc b/scripts/kernel-doc
> index 1484127db104..ea9688df0e93 100755
> --- a/scripts/kernel-doc
> +++ b/scripts/kernel-doc
> @@ -1661,6 +1661,7 @@ sub check_sections($$$$$) {
>  			}
>  			elsif (($decl_type eq "struct") or
>  		       	       ($decl_type eq "union")) {
> +                next if (index("@_", "__counted_by") != -1);
>  				emit_warning("${file}:$.",
>  					"Excess $decl_type member " .
>  					"'$sects[$sx]' " .

Could you give an example of the warnings that this patch addresses?
I've not seen any caused by __counted_by since f600c77aeaff was applied
to docs-next.  What did it miss?

Thanks,

jon