crypto/arm64: sm4-ce-gcm - Avoid pointless yield of the NEON unit

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Kernel mode NEON sections are now preemptible on arm64, and so there is
no need to yield it when calling APIs that may sleep.

Also, move the calls to kernel_neon_end() to the same scope as
kernel_neon_begin(). This is needed for a subsequent change where a
stack buffer is allocated transparently and passed to
kernel_neon_begin().

While at it, simplify the logic.

Reviewed-by: Eric Biggers <ebiggers@kernel.org>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>

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Ard Biesheuvel 2025-09-17 23:33:30 +02:00

parent 9520ef3771

commit c13aebfeee

1 changed files with 6 additions and 19 deletions

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arch/arm64/crypto/sm4-ce-gcm-glue.c

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