net/sfc: add TSO header length check to Tx prepare

[dpdk.git] / drivers / net / sfc / sfc_tso.c

diff --git a/drivers/net/sfc/sfc_tso.c b/drivers/net/sfc/sfc_tso.c
index f46c0e9..a882e64 100644 (file)
--- a/drivers/net/sfc/sfc_tso.c
+++ b/drivers/net/sfc/sfc_tso.c
@@ -119,6 +119,8 @@ sfc_efx_tso_do(struct sfc_efx_txq *txq, unsigned int idx,
                /*
                 * Discard a packet if header linearization is needed but
                 * the header is too big.
+                * Duplicate Tx prepare check here to avoid spoil of
+                * memory if Tx prepare is skipped.
                 */
                if (unlikely(header_len > SFC_TSOH_STD_LEN))
                        return EMSGSIZE;