linux-kernel - Re: [PATCH] : eliminate code duplication in kernel/tracepoint.c

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Message-ID: <4A933C55.4090808@cn.fujitsu.com>
Date:	Tue, 25 Aug 2009 09:20:21 +0800
From:	Li Zefan <lizf@...fujitsu.com>
To:	Anirban Sinha <ASinha@...gmasystems.com>
CC:	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	Oleg Nesterov <oleg@...sign.ru>
Subject: Re: [PATCH] : eliminate code duplication in kernel/tracepoint.c

Anirban Sinha wrote:
> Hi Ingo:
> 
> I was going through the kernel tracepoints work. It's really impressive.
> Congratulations! 
> 
> The following cleanup popped up immediately. May be you guys have
> noticed it already.
> 

Maybe, but no one else sent this patch. ;)

> Cheers,
> 
> Ani
> 
> 
>>>From 2068b87b9635a66e5e86b8ff4182d96a6e969584 Mon Sep 17 00:00:00 2001
> From: Anirban Sinha <asinha@...gmasystems.com>
> Date: Mon, 24 Aug 2009 15:52:20 -0700
> Subject: Cleanup: eliminate code duplication in kernel/tracepoint.c
> 
> 
> Signed-off-by: Anirban Sinha <asinha@...gmasystems.com>

Reviewed-by: Li Zefan <lizf@...fujitsu.com>

> ---
>  kernel/tracepoint.c |    3 ---
>  1 files changed, 0 insertions(+), 3 deletions(-)
> 
> diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c
> index 1ef5d3a..4840ab6 100644
> --- a/kernel/tracepoint.c
> +++ b/kernel/tracepoint.c
> @@ -554,9 +554,6 @@ int tracepoint_module_notify(struct notifier_block
> *self,
> 
>         switch (val) {
>         case MODULE_STATE_COMING:
> -               tracepoint_update_probe_range(mod->tracepoints,
> -                       mod->tracepoints + mod->num_tracepoints);
> -               break;
>         case MODULE_STATE_GOING:
>                 tracepoint_update_probe_range(mod->tracepoints,
>                         mod->tracepoints + mod->num_tracepoints);
> --
> 1.6.4
> 
> 
>>>From 5e09b156be90b936db9c1977abcc04b5cbb4bd4a Mon Sep 17 00:00:00 2001
> From: Anirban Sinha <asinha@...gmasystems.com>
> Date: Mon, 24 Aug 2009 15:55:12 -0700
> Subject: cleanup: remove redundant break statement.
> 

Oh, you should send 2 mails, one mail per patch.

But removing the break won't gain us anything. Actually It's
better to reserve the break.

> 
> Signed-off-by: Anirban Sinha <asinha@...gmasystems.com>
> ---
>  kernel/tracepoint.c |    1 -
>  1 files changed, 0 insertions(+), 1 deletions(-)
> 
> diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c
> index 4840ab6..35eed9c 100644
> --- a/kernel/tracepoint.c
> +++ b/kernel/tracepoint.c
> @@ -557,7 +557,6 @@ int tracepoint_module_notify(struct notifier_block
> *self,
>         case MODULE_STATE_GOING:
>                 tracepoint_update_probe_range(mod->tracepoints,
>                         mod->tracepoints + mod->num_tracepoints);
> -               break;
>         }
>         return 0;
>  }
> --
> 1.6.4
> 
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