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| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2019-07-02 21:41:23 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-07-26 06:55:34 +0200 |
| commit | 2c53fd11f7624658222d175ec27e6c07b20b63d0 (patch) | |
| tree | d5b03a77e9a4357c5e17bade92579283d679fb03 /crypto | |
| parent | crypto: aes - create AES library based on the fixed time AES code (diff) | |
| download | linux-2c53fd11f7624658222d175ec27e6c07b20b63d0.tar.xz linux-2c53fd11f7624658222d175ec27e6c07b20b63d0.zip | |
crypto: x86/aes-ni - switch to generic for fallback and key routines
The AES-NI code contains fallbacks for invocations that occur from a
context where the SIMD unit is unavailable, which really only occurs
when running in softirq context that was entered from a hard IRQ that
was taken while running kernel code that was already using the FPU.
That means performance is not really a consideration, and we can just
use the new library code for this use case, which has a smaller
footprint and is believed to be time invariant. This will allow us to
drop the non-SIMD asm routines in a subsequent patch.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/Kconfig | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig index 091ebbbc9655..20af58068e6b 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -1156,8 +1156,7 @@ config CRYPTO_AES_NI_INTEL tristate "AES cipher algorithms (AES-NI)" depends on X86 select CRYPTO_AEAD - select CRYPTO_AES_X86_64 if 64BIT - select CRYPTO_AES_586 if !64BIT + select CRYPTO_LIB_AES select CRYPTO_ALGAPI select CRYPTO_BLKCIPHER select CRYPTO_GLUE_HELPER_X86 if 64BIT |