linux-kernel - Re: [PATCH] arm64/sysreg: Update PIE permission encodings

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Message-ID: <86plujqcjq.wl-maz@kernel.org>
Date: Sun, 21 Apr 2024 10:40:09 +0100
From: Marc Zyngier <maz@...nel.org>
To: Shiqi Liu <shiqiliu@...t.edu.cn>
Cc: catalin.marinas@....com,
	will@...nel.org,
	broonie@...nel.org,
	anshuman.khandual@....com,
	suzuki.poulose@....com,
	miguel.luis@...cle.com,
	joey.gouly@....com,
	oliver.upton@...ux.dev,
	jingzhangos@...gle.com,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64/sysreg: Update PIE permission encodings

On Sun, 21 Apr 2024 07:33:28 +0100,
Shiqi Liu <shiqiliu@...t.edu.cn> wrote:
> 
> Fix left shift overflow issue when the parameter idx is greater than or
> equal to 8 in the calculation of perm in PIRx_ELx_PERM macro.
> 
> Fix this by modifying the encoding to use a long integer type.
> 
> Signed-off-by: Shiqi Liu <shiqiliu@...t.edu.cn>

Nice catch.

Acked-by: Marc Zyngier <maz@...nel.org>

	M.

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