From 9489667d3e3d39ba452037585e48a89ce44ccbfe Mon Sep 17 00:00:00 2001
From: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Date: Sun, 7 Apr 2013 16:43:41 +0300
Subject: crypto: gcm - make GMAC work when dst and src are different

The GMAC code assumes that dst==src, which causes problems when trying to add
rfc4543(gcm(aes)) test vectors.

So fix this code to work when source and destination buffer are different.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 crypto/Kconfig | 1 +
 1 file changed, 1 insertion(+)

(limited to 'crypto/Kconfig')

diff --git a/crypto/Kconfig b/crypto/Kconfig
index a654b13ae004..6cc27f111551 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -198,6 +198,7 @@ config CRYPTO_GCM
 	select CRYPTO_CTR
 	select CRYPTO_AEAD
 	select CRYPTO_GHASH
+	select CRYPTO_NULL
 	help
 	  Support for Galois/Counter Mode (GCM) and Galois Message
 	  Authentication Code (GMAC). Required for IPSec.
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