[PATCH] net/ice: fix data length check

[Qi Zhang]

In TSO, It is possible mbuf->data_len exceed mtu.
Fixed the incorrect data length check in ice_prep_pkts.

Fixes: ccf33dccf7aa ("net/ice: check illegal packet sizes")
Cc: sta...@dpdk.org

Signed-off-by: Qi Zhang <qi.z.zh...@intel.com>
---
 drivers/net/ice/ice_rxtx.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ice/ice_rxtx.c b/drivers/net/ice/ice_rxtx.c
index 560c1a4af7..f4a4f43636 100644
--- a/drivers/net/ice/ice_rxtx.c
+++ b/drivers/net/ice/ice_rxtx.c
@@ -3671,7 +3671,6 @@ ice_prep_pkts(__rte_unused void *tx_queue, struct 
rte_mbuf **tx_pkts,
        struct rte_mbuf *m;
        struct ice_tx_queue *txq = tx_queue;
        struct rte_eth_dev *dev = &rte_eth_devices[txq->port_id];
-       uint16_t max_frame_size = dev->data->mtu + ICE_ETH_OVERHEAD;
 
        for (i = 0; i < nb_pkts; i++) {
                m = tx_pkts[i];
@@ -3690,7 +3689,7 @@ ice_prep_pkts(__rte_unused void *tx_queue, struct 
rte_mbuf **tx_pkts,
 
                /* check the data_len in mbuf */
                if (m->data_len < ICE_TX_MIN_PKT_LEN ||
-                       m->data_len > max_frame_size) {
+                       m->data_len > ICE_FRAME_SIZE_MAX) {
                        rte_errno = EINVAL;
                        PMD_DRV_LOG(ERR, "INVALID mbuf: bad data_len=[%hu]", 
m->data_len);
                        return i;
-- 
2.31.1