tree 1a9c3482104dd4d99dfc1b839c02678b6a550a53
parent 3d387ef08c40382315b8e9baa4bc9a07f7c49fce
author Jussi Kivilinna <jussi.kivilinna@iki.fi> 1370683067 +0300
committer Herbert Xu <herbert@gondor.apana.org.au> 1371797069 +0800

Revert "crypto: twofish - add AVX2/x86_64 assembler implementation of twofish cipher"

This reverts commit cf1521a1a5e21fd1e79a458605c4282fbfbbeee2.

Instruction (vpgatherdd) that this implementation relied on turned out to be
slow performer on real hardware (i5-4570). The previous 8-way twofish/AVX
implementation is therefore faster and this implementation should be removed.

Converting this implementation to use the same method as in twofish/AVX for
table look-ups would give additional ~3% speed up vs twofish/AVX, but would
hardly be worth of the added code and binary size.

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