net/i40e: fix Tx prepare to set positive rte_errno

Fixes: 3f33e643e5c6 ("net/i40e: add Tx preparation")
Fixes: bfeed0262b0c ("net/i40e: check illegal packets")
Cc: stable@dpdk.org
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>

diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c
index cd3d41f9234d7ebf46807e23a7f36818db2e9483..85c44f52243e4a04f131f4214619094b753ac6f2 100644 (file)
--- a/drivers/net/i40e/i40e_rxtx.c
+++ b/drivers/net/i40e/i40e_rxtx.c
@@ -1446,7 +1446,7 @@ i40e_prep_pkts(__rte_unused void *tx_queue, struct rte_mbuf **tx_pkts,
                if (!(ol_flags & PKT_TX_TCP_SEG)) {
                        if (m->nb_segs > I40E_TX_MAX_MTU_SEG ||
                            m->pkt_len > I40E_FRAME_SIZE_MAX) {
-                               rte_errno = -EINVAL;
+                               rte_errno = EINVAL;
                                return i;
                        }
                } else if (m->nb_segs > I40E_TX_MAX_SEG ||
@@ -1456,31 +1456,31 @@ i40e_prep_pkts(__rte_unused void *tx_queue, struct rte_mbuf **tx_pkts,
                        /* MSS outside the range (256B - 9674B) are considered
                         * malicious
                         */
-                       rte_errno = -EINVAL;
+                       rte_errno = EINVAL;
                        return i;
                }
 
                if (ol_flags & I40E_TX_OFFLOAD_NOTSUP_MASK) {
-                       rte_errno = -ENOTSUP;
+                       rte_errno = ENOTSUP;
                        return i;
                }
 
                /* check the size of packet */
                if (m->pkt_len < I40E_TX_MIN_PKT_LEN) {
-                       rte_errno = -EINVAL;
+                       rte_errno = EINVAL;
                        return i;
                }
 
 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
                ret = rte_validate_tx_offload(m);
                if (ret != 0) {
-                       rte_errno = ret;
+                       rte_errno = -ret;
                        return i;
                }
 #endif
                ret = rte_net_intel_cksum_prepare(m);
                if (ret != 0) {
-                       rte_errno = ret;
+                       rte_errno = -ret;
                        return i;
                }
        }