From: Mathias Krause <minipli@googlemail.com>
Date: Tue, 23 Sep 2014 20:31:07 +0000 (+0200)
Subject: crypto: aesni - disable "by8" AVX CTR optimization
X-Git-Tag: fixes-for-v3.18-merge-window~75^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7da4b29d496b1389d3a29b55d3668efecaa08ebd;p=pandora-kernel.git

crypto: aesni - disable "by8" AVX CTR optimization

The "by8" implementation introduced in commit 22cddcc7df8f ("crypto: aes
- AES CTR x86_64 "by8" AVX optimization") is failing crypto tests as it
handles counter block overflows differently. It only accounts the right
most 32 bit as a counter -- not the whole block as all other
implementations do. This makes it fail the cryptomgr test #4 that
specifically tests this corner case.

As we're quite late in the release cycle, just disable the "by8" variant
for now.

Reported-by: Romain Francoise <romain@orebokech.com>
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Chandramouli Narayanan <mouli@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

Reading git-diff-tree failed