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authorArd Biesheuvel <ardb@kernel.org>2021-01-05 17:47:58 +0100
committerHerbert Xu <herbert@gondor.apana.org.au>2021-01-14 17:10:28 +1100
commitf43dcaf2c97eae986378f12c46b27fe21f8a885b (patch)
tree2e0978c7734ce134c9164435efc9b9179adbf354 /crypto/Kconfig
parent7a6623cc6867b5f24f750a7c16b996b0cbbc63b5 (diff)
downloadlinux-f43dcaf2c97eae986378f12c46b27fe21f8a885b.tar.bz2
crypto: x86/twofish - drop CTR mode implementation
Twofish in CTR mode is never used by the kernel directly, and is highly unlikely to be relied upon by dm-crypt or algif_skcipher. So let's drop the accelerated CTR mode implementation, and instead, rely on the CTR template and the bare cipher. Acked-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/Kconfig')
-rw-r--r--crypto/Kconfig2
1 files changed, 2 insertions, 0 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 3f51c5dfc2a9..606f94079f05 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -1680,6 +1680,7 @@ config CRYPTO_TWOFISH_586
depends on (X86 || UML_X86) && !64BIT
select CRYPTO_ALGAPI
select CRYPTO_TWOFISH_COMMON
+ imply CRYPTO_CTR
help
Twofish cipher algorithm.
@@ -1696,6 +1697,7 @@ config CRYPTO_TWOFISH_X86_64
depends on (X86 || UML_X86) && 64BIT
select CRYPTO_ALGAPI
select CRYPTO_TWOFISH_COMMON
+ imply CRYPTO_CTR
help
Twofish cipher algorithm (x86_64).