linux-kernel - [PATCH 06/12] tracing: declare __{start,stop}_ftrace

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Message-Id: <20161016151616.31451-7-vegard.nossum@oracle.com>
Date:   Sun, 16 Oct 2016 17:16:10 +0200
From:   Vegard Nossum <vegard.nossum@...cle.com>
To:     linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Jiri Slaby <jslaby@...e.cz>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        "Luis R . Rodriguez" <mcgrof@...nel.org>,
        Vegard Nossum <vegard.nossum@...cle.com>,
        Steven Rostedt <srostedt@...hat.com>
Subject: [PATCH 06/12] tracing: declare __{start,stop}_ftrace_events as external array

Cc: Steven Rostedt <srostedt@...hat.com>
Signed-off-by: Vegard Nossum <vegard.nossum@...cle.com>
---
 kernel/trace/trace_events.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 03c0a48..400162f 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -10,6 +10,7 @@
 
 #define pr_fmt(fmt) fmt
 
+#include <linux/extarray.h>
 #include <linux/workqueue.h>
 #include <linux/spinlock.h>
 #include <linux/kthread.h>
@@ -2808,8 +2809,7 @@ static void __add_event_to_tracers(struct trace_event_call *call)
 		__trace_add_new_event(call, tr);
 }
 
-extern struct trace_event_call *__start_ftrace_events[];
-extern struct trace_event_call *__stop_ftrace_events[];
+DECLARE_EXTARRAY(struct trace_event_call *, ftrace_events)
 
 static char bootup_event_buf[COMMAND_LINE_SIZE] __initdata;
 
@@ -2992,8 +2992,7 @@ static __init int event_trace_enable(void)
 	if (!tr)
 		return -ENODEV;
 
-	for_each_event(iter, __start_ftrace_events, __stop_ftrace_events) {
-
+	ext_for_each(iter, ftrace_events) {
 		call = *iter;
 		ret = event_init(call);
 		if (!ret)
-- 
2.10.0.479.g221bd91