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    SubjectRe: [PATCH v5 05/15] tracepoint: Exclude tp_stub_func from CFI checking
    On Wed, Oct 13, 2021 at 11:16:48AM -0700, Sami Tolvanen wrote:
    > If allocate_probes fails, func_remove replaces the old function
    > with a pointer to tp_stub_func, which is called using a mismatching
    > function pointer that will always trip indirect call checks with
    > CONFIG_CFI_CLANG. Use DEFINE_CFI_IMMEDATE_RETURN_STUB to define
    > tp_stub_func to allow it to pass CFI checking.
    >
    > Signed-off-by: Sami Tolvanen <samitolvanen@google.com>

    Reviewed-by: Kees Cook <keescook@chromium.org>

    --
    Kees Cook

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