From 491cd0629de3665bb5911fafd9c17dfe5fa04cf4 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Horia=20Geant=C4=83?= <horia.geanta@nxp.com>
Date: Wed, 12 Sep 2018 16:20:48 +0300
Subject: [PATCH] crypto: tcrypt - fix ghash-generic speed test
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commit 331351f89c36bf7d03561a28b6f64fa10a9f6f3a upstream.

ghash is a keyed hash algorithm, thus setkey needs to be called.
Otherwise the following error occurs:
$ modprobe tcrypt mode=318 sec=1
testing speed of async ghash-generic (ghash-generic)
tcrypt: test  0 (   16 byte blocks,   16 bytes per update,   1 updates):
tcrypt: hashing failed ret=-126

Cc: <stable@vger.kernel.org> # 4.6+
Fixes: 0660511c0bee ("crypto: tcrypt - Use ahash")
Tested-by: Franck Lenormand <franck.lenormand@nxp.com>
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 crypto/tcrypt.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index 2a07341..babbda2 100644
--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -729,6 +729,9 @@ static void test_ahash_speed_common(const char *algo, unsigned int secs,
 			break;
 		}
 
+		if (speed[i].klen)
+			crypto_ahash_setkey(tfm, tvmem[0], speed[i].klen);
+
 		pr_info("test%3u "
 			"(%5u byte blocks,%5u bytes per update,%4u updates): ",
 			i, speed[i].blen, speed[i].plen, speed[i].blen / speed[i].plen);
-- 
2.7.4