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| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2018-08-27 13:02:45 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2018-09-04 05:37:04 +0200 |
| commit | 598b7d41e544322c8c4f3737ee8ddf905a44175e (patch) | |
| tree | 12204284cdb4138e31404d028640ea1a58ef98f6 /arch/arm64/crypto/Kconfig | |
| parent | crypto: arm64/aes-modes - get rid of literal load of addend vector (diff) | |
| download | linux-598b7d41e544322c8c4f3737ee8ddf905a44175e.tar.xz linux-598b7d41e544322c8c4f3737ee8ddf905a44175e.zip | |
crypto: arm64/crc32 - remove PMULL based CRC32 driver
Now that the scalar fallbacks have been moved out of this driver into
the core crc32()/crc32c() routines, we are left with a CRC32 crypto API
driver for arm64 that is based only on 64x64 polynomial multiplication,
which is an optional instruction in the ARMv8 architecture, and is less
and less likely to be available on cores that do not also implement the
CRC32 instructions, given that those are mandatory in the architecture
as of ARMv8.1.
Since the scalar instructions do not require the special handling that
SIMD instructions do, and since they turn out to be considerably faster
on some cores (Cortex-A53) as well, there is really no point in keeping
this code around so let's just remove it.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch/arm64/crypto/Kconfig')
| -rw-r--r-- | arch/arm64/crypto/Kconfig | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/arch/arm64/crypto/Kconfig b/arch/arm64/crypto/Kconfig index d51944ff9f91..a5606823ed4d 100644 --- a/arch/arm64/crypto/Kconfig +++ b/arch/arm64/crypto/Kconfig @@ -66,11 +66,6 @@ config CRYPTO_CRCT10DIF_ARM64_CE depends on KERNEL_MODE_NEON && CRC_T10DIF select CRYPTO_HASH -config CRYPTO_CRC32_ARM64_CE - tristate "CRC32 and CRC32C digest algorithms using ARMv8 extensions" - depends on CRC32 - select CRYPTO_HASH - config CRYPTO_AES_ARM64 tristate "AES core cipher using scalar instructions" select CRYPTO_AES |