linux-kernel - Re: [PATCH v6 02/13] arm64: add pointer authentication register bits

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Message-ID: <ef051a9b-d58f-07af-a446-4b7326ff9311@linaro.org>
Date:   Sun, 9 Dec 2018 08:24:20 -0600
From:   Richard Henderson <richard.henderson@...aro.org>
To:     Kristina Martsenko <kristina.martsenko@....com>,
        linux-arm-kernel@...ts.infradead.org
Cc:     Adam Wallis <awallis@...eaurora.org>,
        Amit Kachhap <amit.kachhap@....com>,
        Andrew Jones <drjones@...hat.com>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Christoffer Dall <christoffer.dall@....com>,
        Cyrill Gorcunov <gorcunov@...il.com>,
        Dave P Martin <dave.martin@....com>,
        Jacob Bramley <jacob.bramley@....com>,
        Kees Cook <keescook@...omium.org>,
        Marc Zyngier <marc.zyngier@....com>,
        Mark Rutland <mark.rutland@....com>,
        Ramana Radhakrishnan <ramana.radhakrishnan@....com>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Will Deacon <will.deacon@....com>,
        kvmarm@...ts.cs.columbia.edu, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 02/13] arm64: add pointer authentication register bits

On 12/7/18 12:39 PM, Kristina Martsenko wrote:
>  #define SCTLR_ELx_DSSBS	(1UL << 44)
> +#define SCTLR_ELx_ENIA	(1 << 31)

1U or 1UL lest you produce signed -0x80000000.

Otherwise,
Reviewed-by: Richard Henderson <richard.henderson@...aro.org>


r~