linux-kernel - Re: [PATCH] ARM64: Add back and fix support for CMDLINE

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Message-ID: <Z-aWdil-GWFC3c-y@shell.armlinux.org.uk>
Date: Fri, 28 Mar 2025 12:30:46 +0000
From: "Russell King (Oracle)" <linux@...linux.org.uk>
To: Yeking@...54.com
Cc: linux-arm-kernel@...ts.infradead.org,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>, Marc Zyngier <maz@...nel.org>,
	Oliver Upton <oliver.upton@...ux.dev>,
	Mark Brown <broonie@...nel.org>,
	Andrea della Porta <andrea.porta@...e.com>,
	Ard Biesheuvel <ardb@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ARM64: Add back and fix support for CMDLINE_EXTEND

On Fri, Mar 28, 2025 at 10:22:34AM +0000, Yeking@...54.com wrote:
> From: 谢致邦 (XIE Zhibang) <Yeking@...54.com>
> 
> After commit e6384c398459 ("efi/libstub: Parse builtin command line
> after bootloader provided one"), the behavior of EFI has been consistent
> with FDT.
> 
> So add back and fix support for CMDLINE_EXTEND.
> 
> Fixes: cae118b6acc3 ("arm64: Drop support for CMDLINE_EXTEND")
> Signed-off-by: 谢致邦 (XIE Zhibang) <Yeking@...54.com>

This breaks the ability for the user (via the boot loader) to override
built-in arguments.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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