linux-kernel - [PATCH V3] tracing/probe: Show subsystem name in messages

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Message-Id: <148676620416.12682.11636422008507925827.stgit@devbox>
Date:   Sat, 11 Feb 2017 07:36:54 +0900
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     Ingo Molnar <mingo@...nel.org>,
        Steven Rostedt <rostedt@...dmis.org>
Cc:     Masami Hiramatsu <mhiramat@...nel.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>,
        Namhyung Kim <namhyung@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH V3] tracing/probe: Show subsystem name in messages

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>
--
  Changes in v3:
  - Fix a typo.
---
 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..95dd810 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_uprobe: " fmt
 
 #include <linux/module.h>
 #include <linux/uaccess.h>