linux-kernel - Re: [PATCH] mmc: core: annotate implicit fall through

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Date:   Tue, 22 Jan 2019 08:47:51 +0100
From:   Ulf Hansson <ulf.hansson@...aro.org>
To:     Mathieu Malaterre <malat@...ian.org>
Cc:     "linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mmc: core: annotate implicit fall through

On Mon, 14 Jan 2019 at 21:42, 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. Truncate
> the comment slightly to fit the max line length of 80 characters.
>
> This commit remove the following warning:
>
>   drivers/mmc/core/host.c:196:14: warning: this statement may fall through [-Wimplicit-fallthrough=]
>
> Signed-off-by: Mathieu Malaterre <malat@...ian.org>

Applied for next, thanks!

Kind regards
Uffe


> ---
>  drivers/mmc/core/host.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
> index f57f5de54206..0052d6fed7c8 100644
> --- a/drivers/mmc/core/host.c
> +++ b/drivers/mmc/core/host.c
> @@ -194,7 +194,7 @@ int mmc_of_parse(struct mmc_host *host)
>         switch (bus_width) {
>         case 8:
>                 host->caps |= MMC_CAP_8_BIT_DATA;
> -               /* Hosts capable of 8-bit transfers can also do 4 bits */
> +               /* fall through - Hosts capable of 8-bit can also do 4 bits */
>         case 4:
>                 host->caps |= MMC_CAP_4_BIT_DATA;
>                 break;
> --
> 2.19.2
>