linux-kernel - Re: [PATCH v8 04/12] x86/spectre: Add boot time option to select Spectre v2 mitigation

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Message-ID: <nycvar.YFH.7.76.1801240046580.11852@cbobk.fhfr.pm>
Date:   Wed, 24 Jan 2018 00:49:37 +0100 (CET)
From:   Jiri Kosina <jikos@...nel.org>
To:     Andi Kleen <ak@...ux.intel.com>
cc:     Borislav Petkov <bp@...en8.de>,
        David Woodhouse <dwmw@...zon.co.uk>,
        Paul Turner <pjt@...gle.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Greg Kroah-Hartman <gregkh@...ux-foundation.org>,
        Tim Chen <tim.c.chen@...ux.intel.com>,
        Dave Hansen <dave.hansen@...el.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Kees Cook <keescook@...gle.com>,
        Rik van Riel <riel@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Andy Lutomirski <luto@...capital.net>,
        gnomes@...rguk.ukuu.org.uk, x86@...nel.org,
        thomas.lendacky@....com, Josh Poimboeuf <jpoimboe@...hat.com>
Subject: Re: [PATCH v8 04/12] x86/spectre: Add boot time option to select
 Spectre v2 mitigation

On Tue, 23 Jan 2018, Andi Kleen wrote:

> > Thanks for pointing this out, Andi. I've been just now writing more or 
> > less the same thing; ditching that and will reuse your patch instead.
> > 
> > Why was the more aggresive version (6cfb521ac0d5b) merged into Linus' tree 
> > instead of that?
> 
> Greg prefered using modversions

Ah. OK, Greg: I'll eat my hat (I've heard that's very popular these times) 
if there is a major enterprise distro that doesn't revert this patch 
immediately.

-- 
Jiri Kosina
SUSE Labs