linux-kernel - Re: [PATCH 2/6] arm64/Kconfig: add LSUI Kconfig

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Message-ID: <07190b99-5e8c-4de0-b460-248ec39996f4@sirena.org.uk>
Date: Wed, 11 Jun 2025 14:34:35 +0100
From: Mark Brown <broonie@...nel.org>
To: Yeoreum Yun <yeoreum.yun@....com>
Cc: catalin.marinas@....com, will@...nel.org, maz@...nel.org,
	oliver.upton@...ux.dev, ardb@...nel.org, frederic@...nel.org,
	james.morse@....com, joey.gouly@....com,
	scott@...amperecomputing.com, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/6] arm64/Kconfig: add LSUI Kconfig

On Wed, Jun 11, 2025 at 11:49:12AM +0100, Yeoreum Yun wrote:

> +menu "v9.6 architectural features"
> +
> +config AS_HAS_LSUI
> +	def_bool $(as-instr,.arch_extension lsui)
> +
> +endmenu # "v9.6 architectural features"
> +

This is adding a menu with no user selectable options, does that not
result in a confusing user experience?  We do often add toolchain
feature checks inside the menus but that's usually associated with
hiding a user selectable option, if there isn't one (or any other option
for that arch version yet) we should probably put the check elsewhere.

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