Hi Masami, this enables HAVE_FTRACE_GRAPH_FUNC for s390. It is based on your ftrace/fprope-on-fgraph patchset. I talked to Heiko, and we agreed that it would be best if you include this patch in your "fprobe: function_graph: Multi-function graph and fprobe on fgraph" patchset. Thanks, Sven Sven Schnelle (1): s390/tracing: Enable HAVE_FTRACE_GRAPH_FUNC arch/s390/Kconfig | 1 + arch/s390/include/asm/ftrace.h | 5 ++++ arch/s390/kernel/entry.h | 1 - arch/s390/kernel/ftrace.c | 48 ++++++++++------------------------ arch/s390/kernel/mcount.S | 11 -------- 5 files changed, 20 insertions(+), 46 deletions(-) -- 2.45.2