crypto: arm64/aes-ce-ccm: add non-SIMD generic fallback

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The arm64 kernel will shortly disallow nested kernel mode NEON.

So honour this in the ARMv8 Crypto Extensions implementation of
CCM-AES, and fall back to a scalar implementation using the generic
crypto helpers for AES, XOR and incrementing the CTR counter.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

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Ard Biesheuvel 2017-07-24 11:28:12 +01:00 • committed by Herbert Xu

parent b8fb993a83

commit 5092fcf349

2 changed files with 140 additions and 35 deletions

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arch/arm64/crypto/Kconfig

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174

arch/arm64/crypto/aes-ce-ccm-glue.c

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