Index: tools/tools/crypto/cryptotest.c
===================================================================
--- tools/tools/crypto/cryptotest.c
+++ tools/tools/crypto/cryptotest.c
@@ -130,9 +130,6 @@
 	{ "aes",	0,	16,	16,	16,	CRYPTO_AES_CBC},
 	{ "aes192",	0,	16,	24,	24,	CRYPTO_AES_CBC},
 	{ "aes256",	0,	16,	32,	32,	CRYPTO_AES_CBC},
-#ifdef notdef
-	{ "arc4",	0,	8,	1,	32,	CRYPTO_ARC4 },
-#endif
 	{ "md5",	1,	8,	16,	16,	CRYPTO_MD5_HMAC },
 	{ "sha1",	1,	8,	20,	20,	CRYPTO_SHA1_HMAC },
 	{ "sha256",	1,	8,	32,	32,	CRYPTO_SHA2_256_HMAC },
@@ -146,8 +143,8 @@
 	printf("usage: %s [-czsbv] [-d dev] [-a algorithm] [count] [size ...]\n",
 		cmd);
 	printf("where algorithm is one of:\n");
-	printf("    des 3des (default) blowfish cast skipjack rij\n");
-	printf("    aes aes192 aes256 arc4\n");
+	printf("    null des 3des (default) blowfish cast skipjack rij\n");
+	printf("    aes aes192 aes256 md5 sha1 sha256 sha384 sha512\n");
 	printf("count is the number of encrypt/decrypt ops to do\n");
 	printf("size is the number of bytes of text to encrypt+decrypt\n");
 	printf("\n");
@@ -158,6 +155,7 @@
 	printf("-v be verbose\n");
 	printf("-b mark operations for batching\n");
 	printf("-p profile kernel crypto operation (must be root)\n");
+	printf("-t n for n threads and run tests concurrently\n");
 	exit(-1);
 }