linux-kernel - [PATCH] tracing: make function ‘ftrace

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Date:   Wed, 16 May 2018 21:30:12 +0200
From:   Mathieu Malaterre <malat@...ian.org>
To:     Chunyan Zhang <zhang.chunyan@...aro.org>
Cc:     Mathieu Malaterre <malat@...ian.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org
Subject: [PATCH] tracing: make function ‘ftrace_exports’ static

In commit 478409dd683d ("tracing: Add hook to function tracing for other
subsystems to use"), a new function ‘ftrace_exports’ was added. Since
this function can be made static, make it so.

Silence the following warning triggered using W=1:

  kernel/trace/trace.c:2451:6: warning: no previous prototype for ‘ftrace_exports’ [-Wmissing-prototypes]

Signed-off-by: Mathieu Malaterre <malat@...ian.org>
---
 kernel/trace/trace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 414d7210b2ec..76b96f453cf7 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -2448,7 +2448,7 @@ static inline void ftrace_exports_disable(void)
 	static_branch_disable(&ftrace_exports_enabled);
 }
 
-void ftrace_exports(struct ring_buffer_event *event)
+static void ftrace_exports(struct ring_buffer_event *event)
 {
 	struct trace_export *export;
 
-- 
2.11.0