Function vlib_trace_frame_buffers_only 

pub unsafe extern "C" fn vlib_trace_frame_buffers_only(
    vm: *mut vlib_main_t,
    node: *mut vlib_node_runtime_t,
    buffers: *mut u32_,
    n_buffers: uword,
    next_buffer_stride: uword,
    n_buffer_data_bytes_in_trace: uword,
)