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* [PATCH][resend] sh: kgdb: Mark expected switch fall-throughs
@ 2019-12-10  0:26 Kuninori Morimoto
  2019-12-10  0:27 ` [PATCH] " Kuninori Morimoto
                   ` (2 more replies)
  0 siblings, 3 replies; 10+ messages in thread
From: Kuninori Morimoto @ 2019-12-10  0:26 UTC (permalink / raw)
  To: Greg Kroah-Hartman, Yoshinori Sato, Rich Felker
  Cc: Daniel Thompson, Will Deacon, Douglas Anderson, Paul Burton,
	Christophe Leroy, linux-sh, linux-kernel


Hi Greg

I'm posting this patch from few month ago,
but it seems SH ML maintainer is not working in these days...

I'm not sure who can handle this patch in this case,
but is it possible to consider about it ?

Thank you for your help !!
Best regards
---
Kuninori Morimoto

^ permalink raw reply	[flat|nested] 10+ messages in thread

* [PATCH] sh: kgdb: Mark expected switch fall-throughs
  2019-12-10  0:26 [PATCH][resend] sh: kgdb: Mark expected switch fall-throughs Kuninori Morimoto
@ 2019-12-10  0:27 ` Kuninori Morimoto
  2019-12-10  8:17 ` [PATCH][resend] " Geert Uytterhoeven
  2019-12-10 20:10 ` Rob Landley
  2 siblings, 0 replies; 10+ messages in thread
From: Kuninori Morimoto @ 2019-12-10  0:27 UTC (permalink / raw)
  To: Greg Kroah-Hartman
  Cc: Yoshinori Sato, Rich Felker, Daniel Thompson, Will Deacon,
	Douglas Anderson, Paul Burton, Christophe Leroy, linux-sh,
	linux-kernel, Daniel Thompson


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>
---
 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


^ permalink raw reply related	[flat|nested] 10+ messages in thread

* Re: [PATCH][resend] sh: kgdb: Mark expected switch fall-throughs
  2019-12-10  0:26 [PATCH][resend] sh: kgdb: Mark expected switch fall-throughs Kuninori Morimoto
  2019-12-10  0:27 ` [PATCH] " Kuninori Morimoto
@ 2019-12-10  8:17 ` Geert Uytterhoeven
  2019-12-10  8:19   ` Kuninori Morimoto
  2019-12-10 20:10 ` Rob Landley
  2 siblings, 1 reply; 10+ messages in thread
From: Geert Uytterhoeven @ 2019-12-10  8:17 UTC (permalink / raw)
  To: Kuninori Morimoto
  Cc: Greg Kroah-Hartman, Yoshinori Sato, Rich Felker, Daniel Thompson,
	Will Deacon, Douglas Anderson, Paul Burton, Christophe Leroy,
	Linux-sh list, Linux Kernel Mailing List, Andrew Morton

Hi Morimoto-san,

On Tue, Dec 10, 2019 at 1:26 AM Kuninori Morimoto
<kuninori.morimoto.gx@renesas.com> wrote:
> I'm posting this patch from few month ago,
> but it seems SH ML maintainer is not working in these days...
>
> I'm not sure who can handle this patch in this case,
> but is it possible to consider about it ?

You may want to CC Andrew Morton <akpm@linux-foundation.org>, who
tends to pick up patches for non-responsive architecture maintainers.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

^ permalink raw reply	[flat|nested] 10+ messages in thread

* Re: [PATCH][resend] sh: kgdb: Mark expected switch fall-throughs
  2019-12-10  8:17 ` [PATCH][resend] " Geert Uytterhoeven
@ 2019-12-10  8:19   ` Kuninori Morimoto
  0 siblings, 0 replies; 10+ messages in thread
From: Kuninori Morimoto @ 2019-12-10  8:19 UTC (permalink / raw)
  To: Geert Uytterhoeven
  Cc: Greg Kroah-Hartman, Yoshinori Sato, Rich Felker, Daniel Thompson,
	Will Deacon, Douglas Anderson, Paul Burton, Christophe Leroy,
	Linux-sh list, Linux Kernel Mailing List, Andrew Morton


Hi Geert

> > I'm posting this patch from few month ago,
> > but it seems SH ML maintainer is not working in these days...
> >
> > I'm not sure who can handle this patch in this case,
> > but is it possible to consider about it ?
> 
> You may want to CC Andrew Morton <akpm@linux-foundation.org>, who
> tends to pick up patches for non-responsive architecture maintainers.

Yeah, indeed.
Thanks, will do soon

Thank you for your help !!
Best regards
---
Kuninori Morimoto

^ permalink raw reply	[flat|nested] 10+ messages in thread

* Re: [PATCH][resend] sh: kgdb: Mark expected switch fall-throughs
  2019-12-10  0:26 [PATCH][resend] sh: kgdb: Mark expected switch fall-throughs Kuninori Morimoto
  2019-12-10  0:27 ` [PATCH] " Kuninori Morimoto
  2019-12-10  8:17 ` [PATCH][resend] " Geert Uytterhoeven
@ 2019-12-10 20:10 ` Rob Landley
  2 siblings, 0 replies; 10+ messages in thread
From: Rob Landley @ 2019-12-10 20:10 UTC (permalink / raw)
  To: Kuninori Morimoto, Greg Kroah-Hartman, Yoshinori Sato, Rich Felker
  Cc: Daniel Thompson, Will Deacon, Douglas Anderson, Paul Burton,
	Christophe Leroy, linux-sh, linux-kernel

On 12/9/19 6:26 PM, Kuninori Morimoto wrote:
> 
> Hi Greg
> 
> I'm posting this patch from few month ago,
> but it seems SH ML maintainer is not working in these days...

There's two of them and they both are? (I spoke to Rich on IRC last week?)

Rob

^ permalink raw reply	[flat|nested] 10+ messages in thread

* Re: [PATCH] sh: kgdb: Mark expected switch fall-throughs
  2019-12-10  8:39 ` [PATCH] " Kuninori Morimoto
  2019-12-10  8:47   ` Christophe Leroy
@ 2019-12-11 15:18   ` Daniel Thompson
  1 sibling, 0 replies; 10+ messages in thread
From: Daniel Thompson @ 2019-12-11 15:18 UTC (permalink / raw)
  To: Kuninori Morimoto
  Cc: Andrew Morton, Greg Kroah-Hartman, Yoshinori Sato, Rich Felker,
	Will Deacon, Douglas Anderson, Paul Burton, Christophe Leroy,
	linux-sh, linux-kernel

On Tue, Dec 10, 2019 at 05:39:00PM +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>
> ---
>  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 */

Since v5.5-rc1 there is the fallthrough pseudo keyword to document
these cases:
https://elixir.bootlin.com/linux/v5.5-rc1/source/Documentation/process/coding-style.rst#L59


Daniel.


>  	case 'D':
>  	case 'k':
>  		atomic_set(&kgdb_cpu_doing_single_step, -1);
> -- 
> 2.7.4
> 

^ permalink raw reply	[flat|nested] 10+ messages in thread

* Re: [PATCH] sh: kgdb: Mark expected switch fall-throughs
  2019-12-10  8:39 ` [PATCH] " Kuninori Morimoto
@ 2019-12-10  8:47   ` Christophe Leroy
  2019-12-11 15:18   ` Daniel Thompson
  1 sibling, 0 replies; 10+ messages in thread
From: Christophe Leroy @ 2019-12-10  8:47 UTC (permalink / raw)
  To: Kuninori Morimoto, Andrew Morton
  Cc: Greg Kroah-Hartman, Yoshinori Sato, Rich Felker, Daniel Thompson,
	Will Deacon, Douglas Anderson, Paul Burton, linux-sh,
	linux-kernel, stable



On 12/10/2019 08:39 AM, 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>

I guess you should also add:

Fixes: ab6e570ba33d ("sh: Generic kgdb stub support.")
Cc: stable@vger.kernel.org

Christophe

^ permalink raw reply	[flat|nested] 10+ messages in thread

* [PATCH] sh: kgdb: Mark expected switch fall-throughs
  2019-12-10  8:38 Kuninori Morimoto
@ 2019-12-10  8:39 ` Kuninori Morimoto
  2019-12-10  8:47   ` Christophe Leroy
  2019-12-11 15:18   ` Daniel Thompson
  0 siblings, 2 replies; 10+ messages in thread
From: Kuninori Morimoto @ 2019-12-10  8:39 UTC (permalink / raw)
  To: Andrew Morton
  Cc: Greg Kroah-Hartman, Yoshinori Sato, Rich Felker, Daniel Thompson,
	Will Deacon, Douglas Anderson, Paul Burton, Christophe Leroy,
	linux-sh, linux-kernel


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>
---
 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


^ permalink raw reply related	[flat|nested] 10+ messages in thread

* Re: [PATCH] sh: kgdb: Mark expected switch fall-throughs
  2019-10-30  7:17 Kuninori Morimoto
@ 2019-10-30  8:44 ` Daniel Thompson
  0 siblings, 0 replies; 10+ messages in thread
From: Daniel Thompson @ 2019-10-30  8:44 UTC (permalink / raw)
  To: Kuninori Morimoto
  Cc: Yoshinori Sato, Rich Felker, Will Deacon, Douglas Anderson,
	Paul Burton, Christophe Leroy, linux-sh, linux-kernel, joe

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
> 

^ permalink raw reply	[flat|nested] 10+ messages in thread

* [PATCH] sh: kgdb: Mark expected switch fall-throughs
@ 2019-10-30  7:17 Kuninori Morimoto
  2019-10-30  8:44 ` Daniel Thompson
  0 siblings, 1 reply; 10+ messages in thread
From: Kuninori Morimoto @ 2019-10-30  7:17 UTC (permalink / raw)
  To: Yoshinori Sato, Rich Felker
  Cc: Daniel Thompson, Will Deacon, Douglas Anderson, Paul Burton,
	Christophe Leroy, linux-sh, linux-kernel


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(+)

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


^ permalink raw reply related	[flat|nested] 10+ messages in thread

end of thread, other threads:[~2019-12-11 15:53 UTC | newest]

Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-12-10  0:26 [PATCH][resend] sh: kgdb: Mark expected switch fall-throughs Kuninori Morimoto
2019-12-10  0:27 ` [PATCH] " Kuninori Morimoto
2019-12-10  8:17 ` [PATCH][resend] " Geert Uytterhoeven
2019-12-10  8:19   ` Kuninori Morimoto
2019-12-10 20:10 ` Rob Landley
  -- strict thread matches above, loose matches on Subject: below --
2019-12-10  8:38 Kuninori Morimoto
2019-12-10  8:39 ` [PATCH] " Kuninori Morimoto
2019-12-10  8:47   ` Christophe Leroy
2019-12-11 15:18   ` Daniel Thompson
2019-10-30  7:17 Kuninori Morimoto
2019-10-30  8:44 ` Daniel Thompson

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