linux-kernel - Re: [PATCH] backlight: adp8860: Mark expected switch fall-through

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Message-ID: <20180710090003.2flpkbgkakmnefpn@holly.lan>
Date:   Tue, 10 Jul 2018 10:00:03 +0100
From:   Daniel Thompson <daniel.thompson@...aro.org>
To:     "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Cc:     Michael Hennerich <michael.hennerich@...log.com>,
        Lee Jones <lee.jones@...aro.org>,
        Jingoo Han <jingoohan1@...il.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        dri-devel@...ts.freedesktop.org, linux-fbdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] backlight: adp8860: Mark expected switch fall-through

On Mon, Jul 09, 2018 at 04:51:56PM -0500, Gustavo A. R. Silva wrote:
> In preparation to enabling -Wimplicit-fallthrough, mark switch cases
> where we are expecting to fall through.
> 
> Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>

Having checked the datasheets...

Reviewed-by: Daniel Thompson <daniel.thompson@...aro.org>

> ---
>  drivers/video/backlight/adp8860_bl.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/video/backlight/adp8860_bl.c b/drivers/video/backlight/adp8860_bl.c
> index 16119bd..f1dc41c 100644
> --- a/drivers/video/backlight/adp8860_bl.c
> +++ b/drivers/video/backlight/adp8860_bl.c
> @@ -690,6 +690,7 @@ static int adp8860_probe(struct i2c_client *client,
>  	switch (ADP8860_MANID(reg_val)) {
>  	case ADP8863_MANUFID:
>  		data->gdwn_dis = !!pdata->gdwn_dis;
> +		/* fall through */
>  	case ADP8860_MANUFID:
>  		data->en_ambl_sens = !!pdata->en_ambl_sens;
>  		break;
> -- 
> 2.7.4
>