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-rw-r--r--drivers/crypto/geode-aes.c12
-rw-r--r--drivers/crypto/geode-aes.h3
2 files changed, 10 insertions, 5 deletions
diff --git a/drivers/crypto/geode-aes.c b/drivers/crypto/geode-aes.c
index 6d3840e629de..6a86958b577f 100644
--- a/drivers/crypto/geode-aes.c
+++ b/drivers/crypto/geode-aes.c
@@ -102,10 +102,15 @@ geode_aes_crypt(struct geode_aes_op *op)
u32 flags = 0;
unsigned long iflags;
- if (op->len == 0 || op->src == op->dst)
+ if (op->len == 0)
return 0;
- if (op->flags & AES_FLAGS_COHERENT)
+ /* If the source and destination is the same, then
+ * we need to turn on the coherent flags, otherwise
+ * we don't need to worry
+ */
+
+ if (op->src == op->dst)
flags |= (AES_CTRL_DCA | AES_CTRL_SCA);
if (op->dir == AES_DIR_ENCRYPT)
@@ -120,7 +125,7 @@ geode_aes_crypt(struct geode_aes_op *op)
_writefield(AES_WRITEIV0_REG, op->iv);
}
- if (op->flags & AES_FLAGS_USRKEY) {
+ if (!(op->flags & AES_FLAGS_HIDDENKEY)) {
flags |= AES_CTRL_WRKEY;
_writefield(AES_WRITEKEY0_REG, op->key);
}
@@ -289,6 +294,7 @@ static struct crypto_alg geode_cbc_alg = {
.setkey = geode_setkey,
.encrypt = geode_cbc_encrypt,
.decrypt = geode_cbc_decrypt,
+ .ivsize = AES_IV_LENGTH,
}
}
};
diff --git a/drivers/crypto/geode-aes.h b/drivers/crypto/geode-aes.h
index 8003a36f3a83..f47968671ae7 100644
--- a/drivers/crypto/geode-aes.h
+++ b/drivers/crypto/geode-aes.h
@@ -20,8 +20,7 @@
#define AES_DIR_DECRYPT 0
#define AES_DIR_ENCRYPT 1
-#define AES_FLAGS_USRKEY (1 << 0)
-#define AES_FLAGS_COHERENT (1 << 1)
+#define AES_FLAGS_HIDDENKEY (1 << 0)
struct geode_aes_op {