Re: [PATCH] mtd: phram: Mark expected switch fall-throughs

From: Gustavo A. R. Silva
Date: Wed Mar 20 2019 - 16:19:19 EST


Hi all,

Friendly ping:

Who can take this?

Thanks
--
Gustavo

On 2/8/19 12:09 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 warnings:
>
> drivers/mtd/devices/phram.c: In function âparse_num64â:
> drivers/mtd/devices/phram.c:149:11: warning: this statement may fall through [-Wimplicit-fallthrough=]
> shift += 10;
> ~~~~~~^~~~~
> drivers/mtd/devices/phram.c:150:4: note: here
> case 'M':
> ^~~~
> drivers/mtd/devices/phram.c:151:11: warning: this statement may fall through [-Wimplicit-fallthrough=]
> shift += 10;
> ~~~~~~^~~~~
> drivers/mtd/devices/phram.c:152:4: note: here
> case 'k':
> ^~~~
>
> Warning level 3 was used: -Wimplicit-fallthrough=3
>
> This patch is part of the ongoing efforts to enabling
> -Wimplicit-fallthrough.
>
> Signed-off-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx>
> ---
> drivers/mtd/devices/phram.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/mtd/devices/phram.c b/drivers/mtd/devices/phram.c
> index 9ee04b5f9311..8a8627c30aed 100644
> --- a/drivers/mtd/devices/phram.c
> +++ b/drivers/mtd/devices/phram.c
> @@ -147,8 +147,10 @@ static int parse_num64(uint64_t *num64, char *token)
> switch (token[len - 2]) {
> case 'G':
> shift += 10;
> + /* fall through */
> case 'M':
> shift += 10;
> + /* fall through */
> case 'k':
> shift += 10;
> token[len - 2] = 0;
>