It appears that the performance of 'vpgatherdd' is suboptimal for this kind of
workload (tested on Core i5-4570) and causes twofish_avx2 to be significantly
slower than twofish_avx. So disable the AVX2 implementation to avoid
performance regressions.

Signed-off-by: Jussi Kivilinna <jussi.kivili...@iki.fi>
---
 crypto/Kconfig |    1 +
 1 file changed, 1 insertion(+)

diff --git a/crypto/Kconfig b/crypto/Kconfig
index d1ca631..678a6ed 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -1318,6 +1318,7 @@ config CRYPTO_TWOFISH_AVX_X86_64
 config CRYPTO_TWOFISH_AVX2_X86_64
        tristate "Twofish cipher algorithm (x86_64/AVX2)"
        depends on X86 && 64BIT
+       depends on BROKEN
        select CRYPTO_ALGAPI
        select CRYPTO_CRYPTD
        select CRYPTO_ABLK_HELPER_X86

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