drbd_csum_ee
extern void drbd_csum_ee(struct crypto_shash *, struct drbd_peer_request *,
drbd_csum_ee(peer_device->connection->integrity_tfm, peer_req, p + 1);
drbd_csum_ee(h, r, d);
drbd_csum_ee(peer_device->connection->csums_tfm, peer_req, digest);
drbd_csum_ee(peer_device->connection->verify_tfm, peer_req, digest);
drbd_csum_ee(peer_device->connection->verify_tfm, peer_req, digest);
drbd_csum_ee(peer_device->connection->csums_tfm, peer_req, digest);