geode: Fix not inplace encryption

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>

diff --git a/drivers/crypto/geode-aes.c b/drivers/crypto/geode-aes.c
index 6a86958b577f974bc423fbc22d48131c2ee79ecd..fa4c9904346f5ec223da20732c2fed99ff756b8e 100644 (file)
--- 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;