2021-03-05 10:05:06

by Gustavo A. R. Silva

Subject: [PATCH RESEND][next] i3c: master: cdns: Fix fall-through warnings for Clang

In preparation to enable -Wimplicit-fallthrough for Clang, fix a warning
by explicitly adding a break statement 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 <[email protected]>
---
drivers/i3c/master/i3c-master-cdns.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/i3c/master/i3c-master-cdns.c b/drivers/i3c/master/i3c-master-cdns.c
index 3f2226928fe0..5b37ffe5ad5b 100644
--- a/drivers/i3c/master/i3c-master-cdns.c
+++ b/drivers/i3c/master/i3c-master-cdns.c
@@ -1379,6 +1379,8 @@ static void cnds_i3c_master_demux_ibis(struct cdns_i3c_master *master)

case IBIR_TYPE_MR:
WARN_ON(IBIR_XFER_BYTES(ibir) || (ibir & IBIR_ERROR));
+ break;
+
default:
break;
}
--
2.27.0

2021-03-05 10:05:12

by Alexandre Belloni

Subject: Re: [PATCH RESEND][next] i3c: master: cdns: Fix fall-through warnings for Clang

On 05/03/2021 04:01:23-0600, Gustavo A. R. Silva wrote:
> In preparation to enable -Wimplicit-fallthrough for Clang, fix a warning
> by explicitly adding a break statement instead of letting the code fall
> through to the next case.
>

I though Clang would be fixed to stop warning in that case, can't you
push a patch there ?

> Link: https://github.com/KSPP/linux/issues/115
> Signed-off-by: Gustavo A. R. Silva <[email protected]>
> ---
> drivers/i3c/master/i3c-master-cdns.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/i3c/master/i3c-master-cdns.c b/drivers/i3c/master/i3c-master-cdns.c
> index 3f2226928fe0..5b37ffe5ad5b 100644
> --- a/drivers/i3c/master/i3c-master-cdns.c
> +++ b/drivers/i3c/master/i3c-master-cdns.c
> @@ -1379,6 +1379,8 @@ static void cnds_i3c_master_demux_ibis(struct cdns_i3c_master *master)
>
> case IBIR_TYPE_MR:
> WARN_ON(IBIR_XFER_BYTES(ibir) || (ibir & IBIR_ERROR));
> + break;
> +
> default:
> break;
> }
> --
> 2.27.0
>

--
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com