linux-kernel - [PATCH 2/2] tracing: fix typoes in code comment and printk in trace

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Date:	Tue,  8 Mar 2016 21:37:02 +0800
From:	Chunyu Hu <chuhu@...hat.com>
To:	rostedt@...dmis.org
Cc:	liwan@...hat.com, linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] tracing: fix typoes in code comment and printk in trace_nop.c

echo nop > /sys/kernel/debug/tracing/options/current_tracer
echo 1 > /sys/kernel/debug/tracing/options/test_nop_accept
echo 0 > /sys/kernel/debug/tracing/options/test_nop_accept
echo 1 > /sys/kernel/debug/tracing/options/test_nop_refuse

Before the fix, the dmesg is a bit ugly since a align issue.

[  191.973081] nop_test_accept flag set to 1: we accept. Now cat trace_options to see the result
[  195.156942] nop_test_refuse flag set to 1: we refuse.Now cat trace_options to see the result

After the fix, the dmesg will show aligned log for nop_test_refuse and nop_test_accept.

[ 2718.032413] nop_test_refuse flag set to 1: we refuse. Now cat trace_options to see the result
[ 2734.253360] nop_test_accept flag set to 1: we accept. Now cat trace_options to see the result

Signed-off-by: Chunyu Hu <chuhu@...hat.com>
---
 kernel/trace/trace_nop.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/trace/trace_nop.c b/kernel/trace/trace_nop.c
index 8bb2071..49f61fe 100644
--- a/kernel/trace/trace_nop.c
+++ b/kernel/trace/trace_nop.c
@@ -56,7 +56,7 @@ static void nop_trace_reset(struct trace_array *tr)
 }
 
 /* It only serves as a signal handler and a callback to
- * accept or refuse tthe setting of a flag.
+ * accept or refuse the setting of a flag.
  * If you don't implement it, then the flag setting will be
  * automatically accepted.
  */
@@ -75,7 +75,7 @@ static int nop_set_flag(struct trace_array *tr, u32 old_flags, u32 bit, int set)
 
 	if (bit == TRACE_NOP_OPT_REFUSE) {
 		printk(KERN_DEBUG "nop_test_refuse flag set to %d: we refuse."
-			"Now cat trace_options to see the result\n",
+			" Now cat trace_options to see the result\n",
 			set);
 		return -EINVAL;
 	}
-- 
1.8.3.1