linux-kernel - Re: [PATCH] i3c: master: dw-i3c-master: mark expected switch fall-through

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Date:   Tue, 26 Feb 2019 21:53:16 -0600
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     Vitor Soares <vitor.soares@...opsys.com>,
        Boris Brezillon <bbrezillon@...nel.org>
Cc:     linux-i3c@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Kees Cook <keescook@...omium.org>
Subject: Re: [PATCH] i3c: master: dw-i3c-master: mark expected switch
 fall-through

Hi all,

Friendly ping:

Who can ack or review this, please?

Thanks
--
Gustavo

On 2/11/19 4:14 PM, Gustavo A. R. Silva wrote:
> In preparation to enabling -Wimplicit-fallthrough, mark switch
> cases where we are expecting to fall through.
> 
> This patch fixes the following warning:
> 
> drivers/i3c/master/dw-i3c-master.c: In function ‘dw_i3c_master_bus_init’:
> drivers/i3c/master/dw-i3c-master.c:603:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
>    if (ret)
>       ^
> drivers/i3c/master/dw-i3c-master.c:605:2: note: here
>   case I3C_BUS_MODE_PURE:
>   ^~~~
> 
> Warning level 3 was used: -Wimplicit-fallthrough=3
> 
> This patch is part of the ongoing efforts to enable
> -Wimplicit-fallthrough.
> 
> Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
> ---
>  drivers/i3c/master/dw-i3c-master.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/i3c/master/dw-i3c-master.c b/drivers/i3c/master/dw-i3c-master.c
> index bb03079fbade..59279224e07f 100644
> --- a/drivers/i3c/master/dw-i3c-master.c
> +++ b/drivers/i3c/master/dw-i3c-master.c
> @@ -602,6 +602,7 @@ static int dw_i3c_master_bus_init(struct i3c_master_controller *m)
>  		ret = dw_i2c_clk_cfg(master);
>  		if (ret)
>  			return ret;
> +		/* fall through */
>  	case I3C_BUS_MODE_PURE:
>  		ret = dw_i3c_clk_cfg(master);
>  		if (ret)
>