linux-kernel - Re: [PATCH v2] checkpatch: add *_NOTIFIER

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Message-ID: <777c39df-bef3-e095-7299-80f55b50158a@nvidia.com>
Date:   Mon, 19 Aug 2019 11:28:11 -0700
From:   John Hubbard <jhubbard@...dia.com>
To:     Gilad Ben-Yossef <gilad@...yossef.com>,
        Andy Whitcroft <apw@...onical.com>,
        Joe Perches <joe@...ches.com>
CC:     Ofir Drang <ofir.drang@....com>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] checkpatch: add *_NOTIFIER_HEAD as var definition

On 8/19/19 5:29 AM, Gilad Ben-Yossef wrote:
> Add *_NOTIFIER_HEAD as variable definition to avoid code like this:
> 
> ATOMIC_NOTIFIER_HEAD(foo);
> EXPORT_SYMBOL_GPL(foo);
> 
>  From triggering the the following warning:
> WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable
> 
> Signed-off-by: Gilad Ben-Yossef <gilad@...yossef.com>
> Cc: John Hubbard <jhubbard@...dia.com>
> ---
> 
> Changes from v1:
> - Fixed misposition of braces.
> - Tested on 1k last commits from Linux tree.

Hi Gilad,

I re-ran this updated patch, on my local patches that were showing the problem,
and it is All Better Now. :)  So you can add:

     Tested-by: John Hubbard <jhubbard@...dia.com>

thanks,
-- 
John Hubbard
NVIDIA

> 
>   scripts/checkpatch.pl | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> index 93a7edfe0f05..8bc0e753a329 100755
> --- a/scripts/checkpatch.pl
> +++ b/scripts/checkpatch.pl
> @@ -3864,6 +3864,7 @@ sub process {
>   				^.DEFINE_$Ident\(\Q$name\E\)|
>   				^.DECLARE_$Ident\(\Q$name\E\)|
>   				^.LIST_HEAD\(\Q$name\E\)|
> +				^.${Ident}_NOTIFIER_HEAD\(\Q$name\E\)|
>   				^.(?:$Storage\s+)?$Type\s*\(\s*\*\s*\Q$name\E\s*\)\s*\(|
>   				\b\Q$name\E(?:\s+$Attribute)*\s*(?:;|=|\[|\()
>   			    )/x) {
>