linux-kernel - Re: [PATCH V2 2/2] tracing/probe: Show subsystem name in messages

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Date:   Sat, 11 Feb 2017 01:01:55 +0900
From:   Namhyung Kim <namhyung@...nel.org>
To:     Masami Hiramatsu <mhiramat@...nel.org>
Cc:     Ingo Molnar <mingo@...nel.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        linux-kernel@...r.kernel.org,
        Peter Zijlstra <peterz@...radead.org>,
        Ananth N Mavinakayanahalli <ananth@...ux.vnet.ibm.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        "H . Peter Anvin" <hpa@...or.com>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH V2 2/2] tracing/probe: Show subsystem name in messages

On Fri, Feb 10, 2017 at 10:23:06PM +0900, Masami Hiramatsu wrote:
> Show "trace_probe:", "trace_kprobe:" and "trace_uprobe:"
> headers for each warning/error/info message. This will
> help people to notice that kprobe/uprobe events caused
> those messages.
> 
> Signed-off-by: Masami Hiramatsu <mhiramat@...nel.org>
> ---
>  kernel/trace/trace_kprobe.c |    1 +
>  kernel/trace/trace_probe.c  |    1 +
>  kernel/trace/trace_uprobe.c |    1 +
>  3 files changed, 3 insertions(+)
> 
> diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
> index d3729bd..5f688cc 100644
> --- a/kernel/trace/trace_kprobe.c
> +++ b/kernel/trace/trace_kprobe.c
> @@ -16,6 +16,7 @@
>   * along with this program; if not, write to the Free Software
>   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
>   */
> +#define pr_fmt(fmt)	"trace_kprobe: " fmt
>  
>  #include <linux/module.h>
>  #include <linux/uaccess.h>
> diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
> index 847c1e0..52478f0 100644
> --- a/kernel/trace/trace_probe.c
> +++ b/kernel/trace/trace_probe.c
> @@ -21,6 +21,7 @@
>   * Copyright (C) IBM Corporation, 2010-2011
>   * Author:     Srikar Dronamraju
>   */
> +#define pr_fmt(fmt)	"trace_probe: " fmt
>  
>  #include "trace_probe.h"
>  
> diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c
> index e5445ab..2c6b2d0c 100644
> --- a/kernel/trace/trace_uprobe.c
> +++ b/kernel/trace/trace_uprobe.c
> @@ -17,6 +17,7 @@
>   * Copyright (C) IBM Corporation, 2010-2012
>   * Author:	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
>   */
> +#define pr_fmt(fmt)	"trace_kprobe: " fmt

s/kprobe/uprobe/ ?

Thanks,
Namhyung

>  
>  #include <linux/module.h>
>  #include <linux/uaccess.h>
>