linux-kernel - Re: [PATCH] ACPICA: Use fallthrough pseudo-keyword

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Date:   Mon, 10 May 2021 19:06:01 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Wei Ming Chen <jj251510319013@...il.com>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
        "open list:ACPI COMPONENT ARCHITECTURE (ACPICA)" <devel@...ica.org>,
        Erik Kaneda <erik.kaneda@...el.com>,
        Robert Moore <robert.moore@...el.com>
Subject: Re: [PATCH] ACPICA: Use fallthrough pseudo-keyword

On Thu, May 6, 2021 at 2:49 PM Wei Ming Chen <jj251510319013@...il.com> wrote:
>
> Replace /* FALLTHROUGH */ comment with pseudo-keyword macro fallthrough[1]
>
> [1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through
>
> Signed-off-by: Wei Ming Chen <jj251510319013@...il.com>
> ---
>  drivers/acpi/acpica/utprint.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/acpi/acpica/utprint.c b/drivers/acpi/acpica/utprint.c
> index e37d612e8db5..0b511434b80b 100644
> --- a/drivers/acpi/acpica/utprint.c
> +++ b/drivers/acpi/acpica/utprint.c
> @@ -475,7 +475,7 @@ int vsnprintf(char *string, acpi_size size, const char *format, va_list args)
>                 case 'X':
>
>                         type |= ACPI_FORMAT_UPPER;
> -                       /* FALLTHROUGH */
> +                       fallthrough;
>
>                 case 'x':
>
> --

This is ACPICA material, so I'm leaving it to Erik and Bob.

Thanks!