[patch 16/29] geode: Fix not inplace encryption

Greg Kroah-Hartman
2007-11-20T18:32:12Z

[-- Attachment #1: geode-fix-not-inplace-encryption.patch --]
[-- Type: text/plain, Size: 1119 bytes --]

2.6.23-stable review patch. If anyone has any objections, please let us
know.

------------------
From: Sebastian Siewior <sebastian@breakpoint.cc>

patch 2e21630ddc3fb717dc645356b75771c6a52dc627 in mainline.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
drivers/crypto/geode-aes.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

--- 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;

--