linux-kernel - Re: [PATCH] arm64: uaccess: fix put

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Message-ID: <20211122100914.GA30695@axis.com>
Date:   Mon, 22 Nov 2021 11:09:14 +0100
From:   Vincent Whitchurch <vincent.whitchurch@...s.com>
To:     Mark Rutland <mark.rutland@....com>
CC:     "catalin.marinas@....com" <catalin.marinas@....com>,
        "will@...nel.org" <will@...nel.org>, kernel <kernel@...s.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] arm64: uaccess: fix put_user() with TTBR0 PAN

On Fri, Nov 19, 2021 at 02:04:50PM +0100, Mark Rutland wrote:
> I think it would be better to use temporaries in __raw_put_user(), along
> with a comment there, so that the requirement is documented and dealt
> with in once place. Example diff at the end of this mail; I'm happy for
> you to pick that for v2, or I can send it out as a patch if your prefer.

Please feel free to send it out as a patch.  Thank you.