[PATCH 28/46] kernel: Add prototype declaration to header file linux/ftrace.h

[Rashika Kheria]

Add prototye declaration of function to header file
include/linux/ftrace.h
because it is used by more than one file.

This eliminates the following warning in
kernel/trace/trace_functions_graph.c:
kernel/trace/trace_functions_graph.c:218:15: warning: no previous prototype for âftrace_return_to_handlerâ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@xxxxxxxxx>
Reviewed-by: Josh Triplett <josh@xxxxxxxxxxxxxxxx>
---
 include/linux/ftrace.h |    1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index da1c31f..c4d1048 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -673,6 +673,7 @@ typedef void (*trace_func_graph_ret_t)(struct ftrace_graph_ret *); /* return */
 typedef int (*trace_func_graph_ent_t)(struct ftrace_graph_ent *); /* entry */
 
 int ftrace_graph_entry_stub(struct ftrace_graph_ent *trace);
+unsigned long ftrace_return_to_handler(unsigned long frame_pointer);
 
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
 
-- 
1.7.9.5

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