linux-kernel - Re: [PATCH] x86/traps: Have read_cr0() only once in the #NM handler

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Message-ID: <CALCETrUbiuYoDzLcHm+pXYyVJWcffiY76eu6UxuaDxtOk765pw@mail.gmail.com>
Date:   Thu, 17 Jan 2019 11:24:17 -0800
From:   Andy Lutomirski <luto@...nel.org>
To:     Borislav Petkov <bp@...en8.de>
Cc:     X86 ML <x86@...nel.org>, LKML <linux-kernel@...r.kernel.org>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Subject: Re: [PATCH] x86/traps: Have read_cr0() only once in the #NM handler

On Thu, Jan 17, 2019 at 4:07 AM Borislav Petkov <bp@...en8.de> wrote:
>
> From: Borislav Petkov <bp@...e.de>
>
> ... instead of twice in the code. In any case, CR0 ends up being read
> once anyway:
>
> 1. The CONFIG_MATH_EMULATION case does so and exits.
> 2. The normal case does it once too.
>


Reviewed-by: Andy Lutomirski <luto@...nel.org>