From: Sebastian Siewior <sebastian@breakpoint.cc>
Date: Sat, 10 Nov 2007 11:37:49 +0000 (+0800)
Subject: [CRYPTO] geode: Fix not inplace encryption
X-Git-Tag: v2.6.24-rc3~13^2
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2e21630ddc3fb717dc645356b75771c6a52dc627;p=linux-2.6

[CRYPTO] geode: Fix not inplace encryption

Currently the Geode AES module fails to encrypt or decrypt if
the coherent bits are not set what is currently the case if the
encryption does not occur inplace. However, the encryption works
on my Geode machine _only_ if the coherent bits are always set.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Acked-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

diff --git a/drivers/crypto/geode-aes.c b/drivers/crypto/geode-aes.c
index f9a34abbf4..711e246e1e 100644
--- a/drivers/crypto/geode-aes.c
+++ b/drivers/crypto/geode-aes.c
@@ -110,8 +110,7 @@ geode_aes_crypt(struct geode_aes_op *op)
 	 * we don't need to worry
 	 */
 
-	if (op->src == op->dst)
-		flags |= (AES_CTRL_DCA | AES_CTRL_SCA);
+	flags |= (AES_CTRL_DCA | AES_CTRL_SCA);
 
 	if (op->dir == AES_DIR_ENCRYPT)
 		flags |= AES_CTRL_ENCRYPT;