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(parent: 870c163) | patch
crypto: arm64/sha256-neon - play nice with CONFIG_PREEMPT kernels
authorArd Biesheuvel <ard.biesheuvel@linaro.org>
Sat, 10 Mar 2018 15:21:54 +0000 (15:21 +0000)
committerHerbert Xu <herbert@gondor.apana.org.au>
Fri, 16 Mar 2018 15:35:58 +0000 (23:35 +0800)
commit1a3713c7cd8c903264065a79c9b29517eec5152e
tree6b7649606284d85179bb7fffdf1b503a4876c70dtree | snapshot
parent870c163a0ee6486bf0a313d47da927400bcb131bcommit | diff
crypto: arm64/sha256-neon - play nice with CONFIG_PREEMPT kernels

Tweak the SHA256 update routines to invoke the SHA256 block transform
block by block, to avoid excessive scheduling delays caused by the
NEON algorithm running with preemption disabled.

Also, remove a stale comment which no longer applies now that kernel
mode NEON is actually disallowed in some contexts.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
arch/arm64/crypto/sha256-glue.c diff | blob | history
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