linux-kernel - Re: [PATCH v9 02/30] arm64/fpsimd: Update FA64 and ZT0 enables when loading SME state

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Message-ID: <cb6372ea-b7f7-4e87-91b5-09378f2dd526@sirena.org.uk>
Date: Thu, 8 Jan 2026 16:42:29 +0000
From: Mark Brown <broonie@...nel.org>
To: Fuad Tabba <tabba@...gle.com>
Cc: Marc Zyngier <maz@...nel.org>, Joey Gouly <joey.gouly@....com>,
	Catalin Marinas <catalin.marinas@....com>,
	Suzuki K Poulose <suzuki.poulose@....com>,
	Will Deacon <will@...nel.org>, Paolo Bonzini <pbonzini@...hat.com>,
	Jonathan Corbet <corbet@....net>, Shuah Khan <shuah@...nel.org>,
	Oliver Upton <oupton@...nel.org>, Dave Martin <Dave.Martin@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ben Horgan <ben.horgan@....com>,
	linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.linux.dev,
	linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
	linux-doc@...r.kernel.org, linux-kselftest@...r.kernel.org,
	Peter Maydell <peter.maydell@...aro.org>,
	Eric Auger <eric.auger@...hat.com>
Subject: Re: [PATCH v9 02/30] arm64/fpsimd: Update FA64 and ZT0 enables when
 loading SME state

On Thu, Jan 08, 2026 at 04:19:34PM +0000, Fuad Tabba wrote:

> Would it be worth adding a comment above the macro noting this
> difference from sve_cond_update_zcr_vq()? Something along the lines of
> 'Intentionally overwrites to ensure strict control of enable bits', to
> save future readers from getting confused...

Sure, makes sense.  Possibly also rename it, I'll have a think.

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