linux-kernel - Re: [PATCH 1/5] crypto/arm64: aes-ce-ccm - Avoid pointless yield of the NEON unit

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Message-ID: <cbd5247e-5c57-43cf-93a3-ec3a6631a509@sirena.org.uk>
Date: Fri, 19 Sep 2025 17:01:52 +0100
From: Mark Brown <broonie@...nel.org>
To: Ard Biesheuvel <ardb+git@...gle.com>
Cc: linux-arm-kernel@...ts.infradead.org, linux-crypto@...r.kernel.org,
	linux-kernel@...r.kernel.org, herbert@...dor.apana.org.au,
	ebiggers@...nel.org, Ard Biesheuvel <ardb@...nel.org>,
	Marc Zyngier <maz@...nel.org>, Will Deacon <will@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Kees Cook <keescook@...omium.org>,
	Catalin Marinas <catalin.marinas@....com>
Subject: Re: [PATCH 1/5] crypto/arm64: aes-ce-ccm - Avoid pointless yield of
 the NEON unit

On Thu, Sep 18, 2025 at 08:35:41AM +0200, Ard Biesheuvel wrote:
> From: Ard Biesheuvel <ardb@...nel.org>
> 
> 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.
> 
> Signed-off-by: Ard Biesheuvel <ardb@...nel.org>

Reviewed-by: Mark Brown <broonie@...nel.org>

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