Re: [PATCH v19 11/19] s390/tracing: Enable HAVE_FTRACE_GRAPH_FUNC

[Heiko Carstens]

On Mon, Nov 11, 2024 at 12:50:58AM +0900, Masami Hiramatsu (Google) wrote:
> From: Sven Schnelle <svens@xxxxxxxxxxxxx>
> 
> Add ftrace_graph_func() which is required for fprobe to access registers.
> This also eliminates the need for calling prepare_ftrace_return() from
> ftrace_caller().
> 
> Signed-off-by: Sven Schnelle <svens@xxxxxxxxxxxxx>
> ---
>  Changes in v19:
>   - Newly added.
> ---
>  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(-)

Acked-by: Heiko Carstens <hca@xxxxxxxxxxxxx>