linux-kernel - [PATCH] ftrace: use helper function clear_ftrace

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Date:   Tue, 30 Jan 2018 08:46:01 +0800
From:   Yisheng Xie <xieyisheng1@...wei.com>
To:     <rostedt@...dmis.org>, <mingo@...hat.com>
CC:     <linux-kernel@...r.kernel.org>,
        Yisheng Xie <xieyisheng1@...wei.com>
Subject: [PATCH] ftrace: use helper function clear_ftrace_function

We have helper function clear_ftrace_function(), use it instead of hard
code. And this should not have any functional change.

Signed-off-by: Yisheng Xie <xieyisheng1@...wei.com>
---
 kernel/trace/ftrace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 554b517..ba78e03 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -6779,7 +6779,7 @@ int unregister_ftrace_function(struct ftrace_ops *ops)
 
 	} else {
 		/* stopping ftrace calls (just send to ftrace_stub) */
-		ftrace_trace_function = ftrace_stub;
+		clear_ftrace_function();
 
 		ftrace_shutdown_sysctl();
 	}
-- 
1.7.12.4