drbd: Use drbd_crypto_is_hash() instead of an open coded check

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>

drivers/block/drbd/drbd_nl.c

@@ -1271,7 +1271,7 @@ static int drbd_nl_net_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
 			goto fail;
 		}
 
-		if (crypto_tfm_alg_type(crypto_hash_tfm(tfm)) != CRYPTO_ALG_TYPE_SHASH) {
+		if (!drbd_crypto_is_hash(crypto_hash_tfm(tfm))) {
 			retcode = ERR_AUTH_ALG_ND;
 			goto fail;
 		}