linux-kernel - Re: [PATCH] scripts/kernel-doc: restore warning for Excess struct/union

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Message-ID: <bd003104-f09a-4904-90ce-ade286a2d051@infradead.org>
Date:   Wed, 13 Dec 2023 23:05:42 -0800
From:   Randy Dunlap <rdunlap@...radead.org>
To:     linux-kernel@...r.kernel.org
Cc:     Jonathan Corbet <corbet@....net>, linux-doc@...r.kernel.org,
        Mauro Carvalho Chehab <mchehab@...nel.org>
Subject: Re: [PATCH] scripts/kernel-doc: restore warning for Excess
 struct/union

(correcting Mauro's email address)


On 12/13/23 23:02, Randy Dunlap wrote:
> The warning for Excess struct or union member description was
> removed when the $nested parameter of check_sections() was removed.
> This causes some kernel-doc notation warnings to be missed.
> 
> Recently the kernel test robot somehow reported an Excess member. The
> code in kernel-doc has not issued that warning since kernel v4.16, so I
> don't know how the robot did it. (See the Link for the report.)
> 
>   drivers/net/wireless/intel/iwlwifi/fw/dbg.c:86: warning: Excess struct/union/enum/typedef member 'trans_len' description in 'iwl_fw_dump_ptrs'
> 
> I patched that warning away even though I could not reproduce the
> warning from kernel-doc. The warning should be issued for extraneous
> struct member or union member description, so restore it.
> 
> Fixes: 1081de2d2f91 ("scripts: kernel-doc: get rid of $nested parameter")
> Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
> Link: https://lore.kernel.org/all/202312060810.QT9zourt-lkp@intel.com/
> Cc: Mauro Carvalho Chehab <mchehab@...pensource.com>
> Cc: Jonathan Corbet <corbet@....net>
> Cc: linux-doc@...r.kernel.org
> ---
>  scripts/kernel-doc |    7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff -- a/scripts/kernel-doc b/scripts/kernel-doc
> --- a/scripts/kernel-doc
> +++ b/scripts/kernel-doc
> @@ -1659,6 +1659,13 @@ sub check_sections($$$$$) {
>  					"'$sects[$sx]' " .
>  					"description in '$decl_name'\n");
>  			}
> +			elsif (($decl_type eq "struct") or
> +		       	       ($decl_type eq "union")) {
> +				emit_warning("${file}:$.",
> +					"Excess $decl_type member " .
> +					"'$sects[$sx]' " .
> +					"description in '$decl_name'\n");
> +			}
>  		}
>  	}
>  }

-- 
#Randy
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