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    Subject[PATCH 3/4] samples: add HAVE_SAMPLE_FTRACE_DIRECT config option
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    Add HAVE_SAMPLE_FTRACE_DIRECT config option which can be selected by
    architectures which have support for ftrace direct call samples.

    Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
    Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
    Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
    ---
    arch/x86/Kconfig | 1 +
    samples/Kconfig | 5 ++++-
    2 files changed, 5 insertions(+), 1 deletion(-)

    diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
    index a52e81cb256e..917391003c7a 100644
    --- a/arch/x86/Kconfig
    +++ b/arch/x86/Kconfig
    @@ -189,6 +189,7 @@ config X86
    select HAVE_DYNAMIC_FTRACE_WITH_REGS
    select HAVE_DYNAMIC_FTRACE_WITH_ARGS if X86_64
    select HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS
    + select HAVE_SAMPLE_FTRACE_DIRECT if X86_64
    select HAVE_EBPF_JIT
    select HAVE_EFFICIENT_UNALIGNED_ACCESS
    select HAVE_EISA
    diff --git a/samples/Kconfig b/samples/Kconfig
    index 8cbd6490823f..0823b97d8546 100644
    --- a/samples/Kconfig
    +++ b/samples/Kconfig
    @@ -26,7 +26,7 @@ config SAMPLE_TRACE_PRINTK
    config SAMPLE_FTRACE_DIRECT
    tristate "Build register_ftrace_direct() example"
    depends on DYNAMIC_FTRACE_WITH_DIRECT_CALLS && m
    - depends on X86_64 # has x86_64 inlined asm
    + depends on HAVE_SAMPLE_FTRACE_DIRECT
    help
    This builds an ftrace direct function example
    that hooks to wake_up_process and prints the parameters.
    @@ -226,3 +226,6 @@ config SAMPLE_WATCH_QUEUE
    source "samples/rust/Kconfig"

    endif # SAMPLES
    +
    +config HAVE_SAMPLE_FTRACE_DIRECT
    + bool
    --
    2.25.1
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