dpdk: fix ipsec coverity warning
CID 170475
@@ -362,8 +362,8 @@ dpdk_esp_encrypt_node_fn (vlib_main_t * vm,
if (sa0->crypto_alg == IPSEC_CRYPTO_ALG_AES_GCM_128)
{
u32 *esp_iv =
- (u32 *) vlib_buffer_get_current (b0) + ip_hdr_size +
- sizeof (esp_header_t);
+ (u32 *) (b0->data + b0->current_data + ip_hdr_size +
+ sizeof (esp_header_t));
esp_iv[0] = sa0->seq;
esp_iv[1] = sa0->seq_hi;
sym_cop->cipher.data.offset =
