ftrace_graph_stub  915 arch/powerpc/kernel/trace/ftrace.c extern void ftrace_graph_stub(void);
ftrace_graph_stub  921 arch/powerpc/kernel/trace/ftrace.c 	unsigned long stub = (unsigned long)(&ftrace_graph_stub);
ftrace_graph_stub  934 arch/powerpc/kernel/trace/ftrace.c 	unsigned long stub = (unsigned long)(&ftrace_graph_stub);