From 48527fa7cf7fefb84e9fe03cddd08ddafc9f15f3 Mon Sep 17 00:00:00 2001
From: Rik Snel <rsnel@cube.dyndns.org>
Date: Sun, 3 Sep 2006 08:56:39 +1000
Subject: [PATCH] [BLOCK] dm-crypt: benbi IV, big endian narrow block count for
 LRW-32-AES

LRW-32-AES needs a certain IV. This IV should be provided dm-crypt.
The block cipher mode could, in principle generate the correct IV from
the plain IV, but I think that it is cleaner to supply the right IV
directly.

The sector -> narrow block calculation uses a shift for performance reasons.
This shift is computed in .ctr and stored in cc->iv_gen_private (as a void *).

Signed-off-by: Rik Snel <rsnel@cube.dyndns.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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