linux-kernel - [PATCH] tracing: use WARN

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Date:   Mon, 26 Jul 2021 21:56:35 +0800
From:   Jason Wang <wangborong@...rlc.com>
To:     rostedt@...dmis.org
Cc:     mingo@...hat.com, linux-kernel@...r.kernel.org,
        Jason Wang <wangborong@...rlc.com>
Subject: [PATCH] tracing: use WARN_ONCE

printk + WARN_ON_ONCE can be just WARN_ONCE.

Signed-off-by: Jason Wang <wangborong@...rlc.com>
---
 kernel/trace/trace_output.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index a0bf446bb034..c06726b6d8b4 100644
--- a/kernel/trace/trace_output.c
+++ b/kernel/trace/trace_output.c
@@ -1574,9 +1574,8 @@ __init static int init_events(void)
 
 		ret = register_trace_event(event);
 		if (!ret) {
-			printk(KERN_WARNING "event %d failed to register\n",
-			       event->type);
-			WARN_ON_ONCE(1);
+			WARN_ONCE(1, "event %d failed to register\n",
+				  event->type);
 		}
 	}
 
-- 
2.32.0