linux-kernel - Re: [PATCH 1/2] firewire: annotate implicit fall through

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Message-ID: <CA+7wUsxi7jMURYQrBp9cTnGCs_akLZV7cmLuk8UgkkaL6Wzd7A@mail.gmail.com>
Date:   Wed, 13 Mar 2019 21:28:05 +0100
From:   Mathieu Malaterre <malat@...ian.org>
To:     Stefan Richter <stefanr@...6.in-berlin.de>
Cc:     linux1394-devel@...ts.sourceforge.net,
        LKML <linux-kernel@...r.kernel.org>,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Subject: Re: [PATCH 1/2] firewire: annotate implicit fall through

ping ?

On Mon, Jan 14, 2019 at 9:42 PM Mathieu Malaterre <malat@...ian.org> wrote:
>
> There is a plan to build the kernel with -Wimplicit-fallthrough and
> this place in the code produced a warning (W=1).
>
> In this particular case rewrote the comment to start with the string "fall
> through", so as to match the regular expression expected by GCC.
>
> This commit remove the following warning:
>
>   drivers/firewire/core-iso.c:308:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
>
> Signed-off-by: Mathieu Malaterre <malat@...ian.org>
> ---
>  drivers/firewire/core-iso.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/firewire/core-iso.c b/drivers/firewire/core-iso.c
> index 35e784cffc23..d2d50bda5a5f 100644
> --- a/drivers/firewire/core-iso.c
> +++ b/drivers/firewire/core-iso.c
> @@ -308,7 +308,7 @@ static int manage_channel(struct fw_card *card, int irm_id, int generation,
>                         if ((data[0] & bit) == (data[1] & bit))
>                                 continue;
>
> -                       /* 1394-1995 IRM, fall through to retry. */
> +                       /* fall through - 1394-1995 IRM to retry. */
>                 default:
>                         if (retry) {
>                                 retry--;
> --
> 2.19.2
>