Function vlib_validate_buffers 

pub unsafe extern "C" fn vlib_validate_buffers(
    vm: *mut vlib_main_t,
    buffers: *mut u32_,
    next_buffer_stride: uword,
    n_buffers: uword,
    known_state: vlib_buffer_known_state_t,
    follow_buffer_next: uword,
) -> *mut u8_