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crypto/arm64: aes-ce-ccm - 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 explicitly in order to prevent scheduling latency
spikes.

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>
This commit is contained in:
Ard Biesheuvel
2025-09-17 23:28:22 +02:00
parent 4fb623074e
commit e9426f3e6b
1 changed files with 1 additions and 4 deletions
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5
arch/arm64/crypto/aes-ce-ccm-glue.c
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@@ -114,11 +114,8 @@ static u32 ce_aes_ccm_auth_data(u8 mac[], u8 const in[], u32 abytes,
in += adv;
abytes -= adv;
if (unlikely(rem)) {
kernel_neon_end();
kernel_neon_begin();
if (unlikely(rem))
macp = 0;
}
} else {
u32 l = min(AES_BLOCK_SIZE - macp, abytes);