diff options
| author | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2013-06-08 12:17:47 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2013-06-21 14:44:29 +0800 |
| commit | 852090f3e19bf9e23365c88c824dba28b9dc57ff (patch) | |
| tree | 709b942ef0a75043c152c6768e93e6bba032e214 /crypto/fips.c | |
| parent | 23147f4c33c4ea35956992ad516159b9046b300e (diff) | |
| download | linux-crypto-852090f3e19bf9e23365c88c824dba28b9dc57ff.tar.gz linux-crypto-852090f3e19bf9e23365c88c824dba28b9dc57ff.zip | |
Revert "crypto: twofish - add AVX2/x86_64 assembler implementation of twofish cipher"
This reverts commit b1e33ac036aa0653c3de6d5b7cced9faebcad1df.
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>
Diffstat (limited to 'crypto/fips.c')
0 files changed, 0 insertions, 0 deletions