crypto: arm64/crc-t10dif - move NEON yield to C code

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Instead of yielding from the bowels of the asm routine if a reschedule
is needed, divide up the input into 4 KB chunks in the C glue. This
simplifies the code substantially, and avoids scheduling out the task
with the asm routine on the call stack, which is undesirable from a
CFI/instrumentation point of view.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

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Ard Biesheuvel 2021-02-03 12:36:25 +01:00 • committed by Herbert Xu

parent f0070f4a79

commit fc754c024a

2 changed files with 35 additions and 38 deletions

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43

arch/arm64/crypto/crct10dif-ce-core.S

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30

arch/arm64/crypto/crct10dif-ce-glue.c

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