Re: [PATCH] parport: ieee1284: mark expected switch fall-through

From: Gustavo A. R. Silva
Date: Mon Feb 25 2019 - 13:23:38 EST


Hi,

Friendly ping:

Who can take this, please?

Thanks
--
Gustavo

On 2/12/19 11:43 AM, 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/parport/ieee1284.c: In function âparport_readâ:
> drivers/parport/ieee1284.c:722:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
> if (parport_negotiate (port, IEEE1284_MODE_NIBBLE)) {
> ^
> drivers/parport/ieee1284.c:726:2: note: here
> case IEEE1284_MODE_NIBBLE:
> ^~~~
>
> Warning level 3 was used: -Wimplicit-fallthrough=3
>
> Notice that, in this particular case, the code comment is modified
> in accordance with what GCC is expecting to find.
>
> This patch is part of the ongoing efforts to enable
> -Wimplicit-fallthrough.
>
> Signed-off-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx>
> ---
> drivers/parport/ieee1284.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/parport/ieee1284.c b/drivers/parport/ieee1284.c
> index f12b9da69255..90fb73575495 100644
> --- a/drivers/parport/ieee1284.c
> +++ b/drivers/parport/ieee1284.c
> @@ -722,7 +722,7 @@ ssize_t parport_read (struct parport *port, void *buffer, size_t len)
> if (parport_negotiate (port, IEEE1284_MODE_NIBBLE)) {
> return -EIO;
> }
> - /* fall through to NIBBLE */
> + /* fall through - to NIBBLE */
> case IEEE1284_MODE_NIBBLE:
> DPRINTK (KERN_DEBUG "%s: Using nibble mode\n", port->name);
> fn = port->ops->nibble_read_data;
>