diff options
| author | Ard Biesheuvel <ardb@kernel.org> | 2021-01-05 17:47:58 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2021-01-14 17:10:28 +1100 |
| commit | f43dcaf2c97eae986378f12c46b27fe21f8a885b (patch) | |
| tree | 2e0978c7734ce134c9164435efc9b9179adbf354 /arch/x86/crypto/twofish-avx-x86_64-asm_64.S | |
| parent | 7a6623cc6867b5f24f750a7c16b996b0cbbc63b5 (diff) | |
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 'arch/x86/crypto/twofish-avx-x86_64-asm_64.S')
| -rw-r--r-- | arch/x86/crypto/twofish-avx-x86_64-asm_64.S | 27 |
1 files changed, 0 insertions, 27 deletions
diff --git a/arch/x86/crypto/twofish-avx-x86_64-asm_64.S b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S index 84e61ef03638..37e63b3c664e 100644 --- a/arch/x86/crypto/twofish-avx-x86_64-asm_64.S +++ b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S @@ -374,30 +374,3 @@ SYM_FUNC_START(twofish_cbc_dec_8way) FRAME_END ret; SYM_FUNC_END(twofish_cbc_dec_8way) - -SYM_FUNC_START(twofish_ctr_8way) - /* input: - * %rdi: ctx, CTX - * %rsi: dst - * %rdx: src - * %rcx: iv (little endian, 128bit) - */ - FRAME_BEGIN - - pushq %r12; - - movq %rsi, %r11; - movq %rdx, %r12; - - load_ctr_8way(%rcx, .Lbswap128_mask, RA1, RB1, RC1, RD1, RA2, RB2, RC2, - RD2, RX0, RX1, RY0); - - call __twofish_enc_blk8; - - store_ctr_8way(%r12, %r11, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2); - - popq %r12; - - FRAME_END - ret; -SYM_FUNC_END(twofish_ctr_8way) |