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Date:   Mon, 25 Feb 2019 17:02:23 +0100
From:   Peter Zijlstra <peterz@infradead.org>
To:     Andy Lutomirski <luto@amacapital.net>
Cc:     Linus Torvalds <torvalds@linux-foundation.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        "H. Peter Anvin" <hpa@zytor.com>,
        Julien Thierry <julien.thierry@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        Ingo Molnar <mingo@kernel.org>,
        Catalin Marinas <catalin.marinas@arm.com>,
        James Morse <james.morse@arm.com>, valentin.schneider@arm.com,
        Brian Gerst <brgerst@gmail.com>,
        Josh Poimboeuf <jpoimboe@redhat.com>,
        Andrew Lutomirski <luto@kernel.org>,
        Borislav Petkov <bp@alien8.de>,
        Denys Vlasenko <dvlasenk@redhat.com>,
        LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 1/6] x86/uaccess: Dont evaluate argument inside AC region
Message-ID: <20190225160223.GK32477@hirez.programming.kicks-ass.net>
References: <20190225124330.613028745@infradead.org>
 <20190225125231.845656645@infradead.org>
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On Mon, Feb 25, 2019 at 07:43:53AM -0800, Andy Lutomirski wrote:
> On Mon, Feb 25, 2019 at 4:53 AM Peter Zijlstra <peterz@infradead.org> wrote:
> >
> > AC regions are special, make sure we don't do possibly complex
> > evaluations there.
> >
> > Probably-Signed-off-by: Andy Lutomirski <luto@kernel.org>
> 
> I put a slightly fancier version here last night so that the 0day bot
> could chew on it:
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/luto/linux.git/commit/?h=x86/fixes&id=b294da548d92320f194172272dda1f734e51013d
> 
> want to snarf it up?  It's the same thing except that I added Linus'
> suggested change, found the offending patch that broke it (hi Linus!)
> and added a bit more changelog :)

Sure; I'll take that one.