diff mbox series

sh: kgdb: Mark expected switch fall-throughs

Message ID 878sp2d7mm.wl-kuninori.morimoto.gx@renesas.com (mailing list archive)
State New, archived
Headers show
Series sh: kgdb: Mark expected switch fall-throughs | expand

Commit Message

Kuninori Morimoto Oct. 30, 2019, 7:17 a.m. UTC
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

Mark switch cases where we are expecting to fall through.

This patch fixes the following error:

LINUX/arch/sh/kernel/kgdb.c: In function 'kgdb_arch_handle_exception':
LINUX/arch/sh/kernel/kgdb.c:267:6: error: this statement may fall through [-Werror=implicit-fallthrough=]
if (kgdb_hex2long(&ptr, &addr))
^
LINUX/arch/sh/kernel/kgdb.c:269:2: note: here
case 'D':
^~~~

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
---
 arch/sh/kernel/kgdb.c | 1 +
 1 file changed, 1 insertion(+)

Comments

Daniel Thompson Oct. 30, 2019, 8:44 a.m. UTC | #1
On Wed, Oct 30, 2019 at 04:17:53PM +0900, Kuninori Morimoto wrote:
> 
> From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
> 
> Mark switch cases where we are expecting to fall through.
> 
> This patch fixes the following error:
> 
> LINUX/arch/sh/kernel/kgdb.c: In function 'kgdb_arch_handle_exception':
> LINUX/arch/sh/kernel/kgdb.c:267:6: error: this statement may fall through [-Werror=implicit-fallthrough=]
> if (kgdb_hex2long(&ptr, &addr))
> ^
> LINUX/arch/sh/kernel/kgdb.c:269:2: note: here
> case 'D':
> ^~~~
> 
> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

Acked-by: Daniel Thompson <daniel.thompson@linaro.org>

Just FYI this is likely to be converted to be the fallthrough
pseudo-keyword shortly after introductionb but IIRC the keyword is only
available in linux-next right now (and the conversion, from Joe Perches,
is script based so it is likely the change will get picked up by the
script without you having to do anything explicit).


Daniel.

> ---
>  arch/sh/kernel/kgdb.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/sh/kernel/kgdb.c b/arch/sh/kernel/kgdb.c
> index 6d61f8c..0d5f3c9 100644
> --- a/arch/sh/kernel/kgdb.c
> +++ b/arch/sh/kernel/kgdb.c
> @@ -266,6 +266,7 @@ int kgdb_arch_handle_exception(int e_vector, int signo, int err_code,
>  		ptr = &remcomInBuffer[1];
>  		if (kgdb_hex2long(&ptr, &addr))
>  			linux_regs->pc = addr;
> +		/* fallthrough */
>  	case 'D':
>  	case 'k':
>  		atomic_set(&kgdb_cpu_doing_single_step, -1);
> -- 
> 2.7.4
>
diff mbox series

Patch

diff --git a/arch/sh/kernel/kgdb.c b/arch/sh/kernel/kgdb.c
index 6d61f8c..0d5f3c9 100644
--- a/arch/sh/kernel/kgdb.c
+++ b/arch/sh/kernel/kgdb.c
@@ -266,6 +266,7 @@  int kgdb_arch_handle_exception(int e_vector, int signo, int err_code,
 		ptr = &remcomInBuffer[1];
 		if (kgdb_hex2long(&ptr, &addr))
 			linux_regs->pc = addr;
+		/* fallthrough */
 	case 'D':
 	case 'k':
 		atomic_set(&kgdb_cpu_doing_single_step, -1);