When performing enqueue operations on the split and packed rings,
if the reserved buffer length from the descriptor table exceeds
65535, the returned length by fill_vec_buf_split/_packed()
overflows. This patch is to avoid this corner case.
Fixes: f689586bc0 ("vhost: shadow used ring update")
Fixes: fd68b4739d ("vhost: use buffer vectors in dequeue path")
Fixes: 2f3225a7d6 ("vhost: add vector filling support for packed ring")
Fixes: 37f5e79a27 ("vhost: add shadow used ring support for packed rings")
Fixes: a922401f35 ("vhost: add Rx support for packed ring")
Fixes: ae999ce49d ("vhost: add Tx support for packed ring")
Cc: stable@dpdk.org
Signed-off-by: Jiayu Hu <jiayu.hu@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
729199397f