From: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Date: Sat, 3 Mar 2012 11:59:00 +0000 (+0200)
Subject: crypto: camellia - simplify key setup and CAMELLIA_ROUNDSM macro
X-Git-Tag: v3.4-rc1~166^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c9b56d33b03e9d5cd5f9d8598b56e9c84386844a;p=pandora-kernel.git

crypto: camellia - simplify key setup and CAMELLIA_ROUNDSM macro

camellia_setup_tail() applies 'inverse of the last half of P-function' to
subkeys, which is unneeded if keys are applied directly to yl/yr in
CAMELLIA_ROUNDSM.

Patch speeds up key setup and should speed up CAMELLIA_ROUNDSM as applying
key to yl/yr early has less register dependencies.

Quick tcrypt camellia results:
 x86_64, AMD Phenom II, ~5% faster
 x86_64, Intel Core 2, ~0.5% faster
 i386, Intel Atom N270, ~1% faster

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