linux-kernel - [PATCH] tracing: make exported ftrace_set_clr

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Message-Id: <20190704172110.27041-1-efremov@linux.com>
Date:   Thu,  4 Jul 2019 20:21:10 +0300
From:   Denis Efremov <efremov@...ux.com>
To:     Divya Indi <divya.indi@...cle.com>
Cc:     Denis Efremov <efremov@...ux.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Joe Jin <joe.jin@...cle.com>, Ingo Molnar <mingo@...hat.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] tracing: make exported ftrace_set_clr_event non-static

The function ftrace_set_clr_event is declared static and marked
EXPORT_SYMBOL_GPL(), which is at best an odd combination. Because the
function was decided to be a part of API, this commit removes the static
attribute and adds the declaration to the header.

Fixes: f45d1225adb04 ("tracing: Kernel access to Ftrace instances")
Signed-off-by: Denis Efremov <efremov@...ux.com>
---
 include/linux/trace_events.h | 1 +
 kernel/trace/trace_events.c  | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/linux/trace_events.h b/include/linux/trace_events.h
index 8a62731673f7..84bc84f00e8f 100644
--- a/include/linux/trace_events.h
+++ b/include/linux/trace_events.h
@@ -539,6 +539,7 @@ extern int trace_event_get_offsets(struct trace_event_call *call);
 
 #define is_signed_type(type)	(((type)(-1)) < (type)1)
 
+int ftrace_set_clr_event(struct trace_array *tr, char *buf, int set);
 int trace_set_clr_event(const char *system, const char *event, int set);
 
 /*
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 0ce3db67f556..b6b46184f6bf 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -795,7 +795,7 @@ static int __ftrace_set_clr_event(struct trace_array *tr, const char *match,
 	return ret;
 }
 
-static int ftrace_set_clr_event(struct trace_array *tr, char *buf, int set)
+int ftrace_set_clr_event(struct trace_array *tr, char *buf, int set)
 {
 	char *event = NULL, *sub = NULL, *match;
 	int ret;
-- 
2.21.0