diff -urpPX nopatch linux-2.4.33/crypto/cipher.c linux/crypto/cipher.c
--- linux-2.4.33/crypto/cipher.c	Sun Aug  8 03:26:04 2004
+++ linux/crypto/cipher.c	Sun Aug 13 20:33:57 2006
@@ -147,6 +147,15 @@ static int ecb_encrypt(struct crypto_tfm
 	             ecb_process, 1, NULL);
 }
 
+static int ecb_encrypt_iv(struct crypto_tfm *tfm,
+			  struct scatterlist *dst,
+			  struct scatterlist *src,
+			  unsigned int nbytes, u8 *iv)
+{
+	ecb_encrypt(tfm, dst, src, nbytes);
+	return -ENOSYS;
+}
+
 static int ecb_decrypt(struct crypto_tfm *tfm,
                        struct scatterlist *dst,
                        struct scatterlist *src,
@@ -157,6 +166,15 @@ static int ecb_decrypt(struct crypto_tfm
 	             ecb_process, 1, NULL);
 }
 
+static int ecb_decrypt_iv(struct crypto_tfm *tfm,
+			  struct scatterlist *dst,
+			  struct scatterlist *src,
+			  unsigned int nbytes, u8 *iv)
+{
+	ecb_decrypt(tfm, dst, src, nbytes);
+	return -ENOSYS;
+}
+
 static int cbc_encrypt(struct crypto_tfm *tfm,
                        struct scatterlist *dst,
                        struct scatterlist *src,
@@ -235,6 +253,11 @@ int crypto_init_cipher_ops(struct crypto
 	case CRYPTO_TFM_MODE_ECB:
 		ops->cit_encrypt = ecb_encrypt;
 		ops->cit_decrypt = ecb_decrypt;
+/* These should have been nocrypt_iv, but patch-cryptoloop-jari-2.4.22.0
+ * (and its other revisions) directly calls the *_iv() functions even in
+ * ECB mode and ignores their return value. */
+		ops->cit_encrypt_iv = ecb_encrypt_iv;
+		ops->cit_decrypt_iv = ecb_decrypt_iv;
 		break;
 		
 	case CRYPTO_TFM_MODE_CBC: