[PATCH] bus: ti-sysc: Add break in switch statement in sysc_init_soc()

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Nathan Chancellor

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Aug 15, 2021, 3:19:19 PM8/15/21
to Tony Lindgren, Nick Desaulniers, Gustavo A. R. Silva, Kees Cook, linux...@vger.kernel.org, linux-...@vger.kernel.org, clang-bu...@googlegroups.com, Nathan Chancellor
After commit a6d90e9f2232 ("bus: ti-sysc: AM3: RNG is GP only"), clang
with -Wimplicit-fallthrough enabled warns:

drivers/bus/ti-sysc.c:2958:3: warning: unannotated fall-through between
switch labels [-Wimplicit-fallthrough]
default:
^
drivers/bus/ti-sysc.c:2958:3: note: insert 'break;' to avoid
fall-through
default:
^
break;
1 warning generated.

Clang's version of this warning is a little bit more pedantic than
GCC's. Add the missing break to satisfy it to match what has been done
all over the kernel tree.

Signed-off-by: Nathan Chancellor <nat...@kernel.org>
---
drivers/bus/ti-sysc.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
index 0ef98e3ba341..afe8222db7cd 100644
--- a/drivers/bus/ti-sysc.c
+++ b/drivers/bus/ti-sysc.c
@@ -2955,6 +2955,7 @@ static int sysc_init_soc(struct sysc *ddata)
break;
case SOC_AM3:
sysc_add_disabled(0x48310000); /* rng */
+ break;
default:
break;
}

base-commit: ba31f97d43be41ca99ab72a6131d7c226306865f
--
2.33.0.rc2

Nick Desaulniers

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Aug 16, 2021, 2:43:19 PM8/16/21
to Nathan Chancellor, Tony Lindgren, Gustavo A. R. Silva, Kees Cook, linux...@vger.kernel.org, linux-...@vger.kernel.org, clang-bu...@googlegroups.com
On Sun, Aug 15, 2021 at 12:19 PM Nathan Chancellor <nat...@kernel.org> wrote:
>
> After commit a6d90e9f2232 ("bus: ti-sysc: AM3: RNG is GP only"), clang
> with -Wimplicit-fallthrough enabled warns:
>
> drivers/bus/ti-sysc.c:2958:3: warning: unannotated fall-through between
> switch labels [-Wimplicit-fallthrough]
> default:
> ^
> drivers/bus/ti-sysc.c:2958:3: note: insert 'break;' to avoid
> fall-through
> default:
> ^
> break;
> 1 warning generated.
>
> Clang's version of this warning is a little bit more pedantic than
> GCC's. Add the missing break to satisfy it to match what has been done
> all over the kernel tree.
>
> Signed-off-by: Nathan Chancellor <nat...@kernel.org>

Thanks for the patch!
Reviewed-by: Nick Desaulniers <ndesau...@google.com>

> ---
> drivers/bus/ti-sysc.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
> index 0ef98e3ba341..afe8222db7cd 100644
> --- a/drivers/bus/ti-sysc.c
> +++ b/drivers/bus/ti-sysc.c
> @@ -2955,6 +2955,7 @@ static int sysc_init_soc(struct sysc *ddata)
> break;
> case SOC_AM3:
> sysc_add_disabled(0x48310000); /* rng */
> + break;
> default:
> break;
> }
>
> base-commit: ba31f97d43be41ca99ab72a6131d7c226306865f
> --
> 2.33.0.rc2
>
> --
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--
Thanks,
~Nick Desaulniers

Tony Lindgren

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Aug 19, 2021, 2:40:07 AM8/19/21
to Nathan Chancellor, Nick Desaulniers, Gustavo A. R. Silva, Kees Cook, linux...@vger.kernel.org, linux-...@vger.kernel.org, clang-bu...@googlegroups.com
* Nathan Chancellor <nat...@kernel.org> [210815 22:19]:
> After commit a6d90e9f2232 ("bus: ti-sysc: AM3: RNG is GP only"), clang
> with -Wimplicit-fallthrough enabled warns:
>
> drivers/bus/ti-sysc.c:2958:3: warning: unannotated fall-through between
> switch labels [-Wimplicit-fallthrough]
> default:

Thanks applying into fixes.

Regards,

Tony
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