linux-kernel - [PATCH 07/12] tracing: declare __{start,stop}_ftrace_enum

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Message-Id: <20161016151616.31451-8-vegard.nossum@oracle.com>
Date:   Sun, 16 Oct 2016 17:16:11 +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 <rostedt@...dmis.org>
Subject: [PATCH 07/12] tracing: declare __{start,stop}_ftrace_enum_maps as external array

Cc: Steven Rostedt <rostedt@...dmis.org>
Signed-off-by: Vegard Nossum <vegard.nossum@...cle.com>
---
 kernel/trace/trace.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 8696ce6..d1bee81 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -11,6 +11,7 @@
  *  Copyright (C) 2004-2006 Ingo Molnar
  *  Copyright (C) 2004 Nadia Yvette Chambers
  */
+#include <linux/extarray.h>
 #include <linux/ring_buffer.h>
 #include <generated/utsrelease.h>
 #include <linux/stacktrace.h>
@@ -7299,15 +7300,12 @@ struct dentry *tracing_init_dentry(void)
 	return NULL;
 }
 
-extern struct trace_enum_map *__start_ftrace_enum_maps[];
-extern struct trace_enum_map *__stop_ftrace_enum_maps[];
+DECLARE_EXTARRAY(struct trace_enum_map *, ftrace_enum_maps);
 
 static void __init trace_enum_init(void)
 {
-	int len;
-
-	len = __stop_ftrace_enum_maps - __start_ftrace_enum_maps;
-	trace_insert_enum_map(NULL, __start_ftrace_enum_maps, len);
+	trace_insert_enum_map(NULL, ext_start(ftrace_enum_maps),
+				    ext_size(ftrace_enum_maps));
 }
 
 #ifdef CONFIG_MODULES
-- 
2.10.0.479.g221bd91