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From: Jason Baron on 16 Mar 2010 13:50
trace_syscalls.c uses __start_ftrace_events and __stop_ftrace_events in order
to prune compat syscall ftrace events that are not referenced by the compat
syscall table. So move the 'extern' definitions to a common header file.

Signed-off-by: Jason Baron <jbaron(a)redhat.com>
---
include/linux/ftrace_event.h | 3 +++
kernel/trace/trace_events.c | 3 ---
2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 6b7c444..fb6ede1 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -136,6 +136,9 @@ struct ftrace_event_call {
void (*profile_disable)(struct ftrace_event_call *);
};

+extern struct ftrace_event_call __start_ftrace_events[];
+extern struct ftrace_event_call __stop_ftrace_events[];
+
#define FTRACE_MAX_PROFILE_SIZE 2048

#define MAX_FILTER_PRED 32
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 3f972ad..36d9787 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -1222,9 +1222,6 @@ static struct notifier_block trace_module_nb = {
.priority = 0,
};

-extern struct ftrace_event_call __start_ftrace_events[];
-extern struct ftrace_event_call __stop_ftrace_events[];
-
static char bootup_event_buf[COMMAND_LINE_SIZE] __initdata;

static __init int setup_trace_event(char *str)
--
1.6.5.1

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Prev: [PATCH] gigaset: correct range checking off by one error
Next: [PATCH 14/14] tracing: make a "compat_syscalls" tracing subsys