Simplify the computation for the needed size:
- exact size for the structure header,
- exact size for a number of 64-bit counters.
Fixes: a4193ae3bc4f ("net/mlx5: support extended statistics")
Cc: stable@dpdk.org
Signed-off-by: Thierry Herbelot <thierry.herbelot@6wind.com>
Acked-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
25b73ba6f3