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Date:   Mon, 17 Feb 2020 23:27:36 +0100
From:   Borislav Petkov <bp@alien8.de>
To:     Andy Lutomirski <luto@amacapital.net>
Cc:     "H.J. Lu" <hjl.tools@gmail.com>, linux-kernel@vger.kernel.org,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>,
        "H . Peter Anvin" <hpa@zytor.com>, x86@kernel.org,
        Yu-cheng Yu <yu-cheng.yu@intel.com>
Subject: Re: [PATCH] x86: Don't clare __force_order in kaslr_64.c
Message-ID: <20200217222736.GG14426@zn.tnic>
References: <20200124181811.4780-1-hjl.tools@gmail.com>
 <E184715B-30CD-4951-BAF4-E95135AEE938@amacapital.net>
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On Fri, Jan 24, 2020 at 10:24:19AM -0800, Andy Lutomirski wrote:
> Why does anything actually define that variable? Surely any actual
> references are just an outright bug. Is it needed for LTO?

I think the answer to your question is at the top of
arch/x86/include/asm/special_insns.h


-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette