In the rather unlikely case where the first segment is too small to
contain an ethernet header, we can't go and directly dereference the
mbuf data buffer.
Using rte_pktmbuf_read is a little more expensive but this is still
acceptable for a debugging feature.
Fixes: af75078fece3 ("first public release")
Cc: stable@dpdk.org
Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Bernard Iremonger <bernard.iremonger@intel.com>
3e6b0d5f69