/* If integrity check is required, do this. */
if (esp->auth.icv_full_len) {
u8 sum[alen];
err = esp_mac_digest(esp, skb, 0, skb->len - alen);
if (err)
/* If integrity check is required, do this. */
if (esp->auth.icv_full_len) {
u8 sum[alen];
err = esp_mac_digest(esp, skb, 0, skb->len - alen);
if (err)