Commit e9426f3e authored by Ard Biesheuvel's avatar Ard Biesheuvel
Browse files

crypto/arm64: aes-ce-ccm - Avoid pointless yield of the NEON unit 



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: default avatarEric Biggers <ebiggers@kernel.org>
Acked-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
Acked-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
Signed-off-by: default avatarArd Biesheuvel <ardb@kernel.org>
parent 4fb62307

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

+1 −4
Original line number Diff line number Diff line
@@ -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);