linux-hardening - Re: [PATCH 057/141] watchdog: Fix fall-through warnings for Clang

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Message-ID: <20210304230406.GA106291@embeddedor>
Date:   Thu, 4 Mar 2021 17:04:06 -0600
From:   "Gustavo A. R. Silva" <gustavoars@...nel.org>
To:     Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>
Cc:     linux-watchdog@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-hardening@...r.kernel.org
Subject: Re: [PATCH 057/141] watchdog: Fix fall-through warnings for Clang

Hi all,

It's been more than 3 months; who can take this, please? :)

Thanks
--
Gustavo

On Fri, Nov 20, 2020 at 12:32:51PM -0600, Gustavo A. R. Silva wrote:
> In preparation to enable -Wimplicit-fallthrough for Clang, fix a warning
> by explicitly adding a fallthrough pseudo-keyword instead of letting the
> code fall through to the next case.
> 
> Link: https://github.com/KSPP/linux/issues/115
> Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>
> ---
>  drivers/watchdog/machzwd.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/watchdog/machzwd.c b/drivers/watchdog/machzwd.c
> index 743377c5b173..73f2221f6222 100644
> --- a/drivers/watchdog/machzwd.c
> +++ b/drivers/watchdog/machzwd.c
> @@ -174,6 +174,7 @@ static inline void zf_set_timer(unsigned short new, unsigned char n)
>  		fallthrough;
>  	case WD2:
>  		zf_writeb(COUNTER_2, new > 0xff ? 0xff : new);
> +		fallthrough;
>  	default:
>  		return;
>  	}
> -- 
> 2.27.0
>