crypto: x86/glue_helper - fix storing of new IV in CBC encryption

Glue_helper incorrectly XORs new IV over old IV at end of CBC encryption
function when it should store. This causes CBC encryption to give
incorrect output on multi-page encryption requests.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/arch/x86/crypto/glue_helper.c b/arch/x86/crypto/glue_helper.c
index 4854f0f..30b3927 100644 (file)
--- a/arch/x86/crypto/glue_helper.c
+++ b/arch/x86/crypto/glue_helper.c
@@ -110,7 +110,7 @@ static unsigned int __glue_cbc_encrypt_128bit(const common_glue_func_t fn,
                nbytes -= bsize;
        } while (nbytes >= bsize);
 
-       u128_xor((u128 *)walk->iv, (u128 *)walk->iv, iv);
+       *(u128 *)walk->iv = *iv;
        return nbytes;
 }