diff --git a/drivers/crypto/qat/qat_crypto.c b/drivers/crypto/qat/qat_crypto.c index 8aeaa5e642..679b25776d 100644 --- a/drivers/crypto/qat/qat_crypto.c +++ b/drivers/crypto/qat/qat_crypto.c @@ -971,17 +971,24 @@ qat_write_hw_desc_entry(struct rte_crypto_op *op, uint8_t *out_msg, } /* copy IV into request if it fits */ - if (op->sym->cipher.iv.length && (op->sym->cipher.iv.length <= - sizeof(cipher_param->u.cipher_IV_array))) { - rte_memcpy(cipher_param->u.cipher_IV_array, - op->sym->cipher.iv.data, - op->sym->cipher.iv.length); - } else { - ICP_QAT_FW_LA_CIPH_IV_FLD_FLAG_SET( - qat_req->comn_hdr.serv_specif_flags, - ICP_QAT_FW_CIPH_IV_64BIT_PTR); - cipher_param->u.s.cipher_IV_ptr = - op->sym->cipher.iv.phys_addr; + /* + * If IV length is zero do not copy anything but still + * use request descriptor embedded IV + * + */ + if (op->sym->cipher.iv.length) { + if (op->sym->cipher.iv.length <= + sizeof(cipher_param->u.cipher_IV_array)) { + rte_memcpy(cipher_param->u.cipher_IV_array, + op->sym->cipher.iv.data, + op->sym->cipher.iv.length); + } else { + ICP_QAT_FW_LA_CIPH_IV_FLD_FLAG_SET( + qat_req->comn_hdr.serv_specif_flags, + ICP_QAT_FW_CIPH_IV_64BIT_PTR); + cipher_param->u.s.cipher_IV_ptr = + op->sym->cipher.iv.phys_addr; + } } min_ofs = cipher_ofs; }