linux-kernel - [PATCH 09/12] tracing: declare __{start,stop}_syscalls

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Message-Id: <20161016151616.31451-10-vegard.nossum@oracle.com>
Date:   Sun, 16 Oct 2016 17:16:13 +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 09/12] tracing: declare __{start,stop}_syscalls_metadata as external array

Cc: Steven Rostedt <rostedt@...dmis.org>
Signed-off-by: Vegard Nossum <vegard.nossum@...cle.com>
---
 kernel/trace/trace_syscalls.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
index 5e10395..2b1c1c3 100644
--- a/kernel/trace/trace_syscalls.c
+++ b/kernel/trace/trace_syscalls.c
@@ -1,5 +1,6 @@
 #include <trace/syscall.h>
 #include <trace/events/syscalls.h>
+#include <linux/extarray.h>
 #include <linux/syscalls.h>
 #include <linux/slab.h>
 #include <linux/kernel.h>
@@ -26,8 +27,7 @@ syscall_get_enter_fields(struct trace_event_call *call)
 	return &entry->enter_fields;
 }
 
-extern struct syscall_metadata *__start_syscalls_metadata[];
-extern struct syscall_metadata *__stop_syscalls_metadata[];
+DECLARE_EXTARRAY(struct syscall_metadata *, syscalls_metadata);
 
 static struct syscall_metadata **syscalls_metadata;
 
@@ -84,8 +84,8 @@ find_syscall_meta(unsigned long syscall)
 	char str[KSYM_SYMBOL_LEN];
 
 
-	start = __start_syscalls_metadata;
-	stop = __stop_syscalls_metadata;
+	start = ext_start(syscalls_metadata);
+	stop = ext_end(syscalls_metadata);
 	kallsyms_lookup(syscall, NULL, NULL, NULL, str);
 
 	if (arch_syscall_match_sym_name(str, "sys_ni_syscall"))
-- 
2.10.0.479.g221bd91