linux-kernel - Re: [PATCH v3 02/22] arm64: Generate sign macro for sysreg Enums

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Message-ID: <86tt41b9oh.wl-maz@kernel.org>
Date: Fri, 27 Jun 2025 14:23:10 +0100
From: Marc Zyngier <maz@...nel.org>
To: Colton Lewis <coltonlewis@...gle.com>
Cc: kvm@...r.kernel.org,
	Paolo Bonzini <pbonzini@...hat.com>,
	Jonathan Corbet <corbet@....net>,
	Russell King <linux@...linux.org.uk>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>,
	Oliver Upton <oliver.upton@...ux.dev>,
	Mingwei Zhang <mizhang@...gle.com>,
	Joey Gouly <joey.gouly@....com>,
	Suzuki K Poulose <suzuki.poulose@....com>,
	Zenghui Yu <yuzenghui@...wei.com>,
	Mark Rutland <mark.rutland@....com>,
	Shuah Khan <shuah@...nel.org>,
	linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	kvmarm@...ts.linux.dev,
	linux-perf-users@...r.kernel.org,
	linux-kselftest@...r.kernel.org
Subject: Re: [PATCH v3 02/22] arm64: Generate sign macro for sysreg Enums

On Thu, 26 Jun 2025 21:04:38 +0100,
Colton Lewis <coltonlewis@...gle.com> wrote:
> 
> There's no reason Enums shouldn't be equivalent to UnsignedEnums and
> explicitly specify they are unsigned. This will avoid the annoyance I
> had with HPMN0.

And randomly break unsuspecting cases for which a value is neither
signed not unsigned, but an actual *enumeration*.

If you have issues with HPMN0, start by explaining those, because
ranting in a commit message doesn't help much.

	M.

-- 
Without deviation from the norm, progress is not possible.