linux-kernel - Re: [PATCH v2] retpoline/module: Warn for missing retpoline in module

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Message-ID: <alpine.DEB.2.20.1801162223410.2366@nanos>
Date:   Tue, 16 Jan 2018 22:24:16 +0100 (CET)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Andi Kleen <andi@...stfloor.org>
cc:     dwmw@...zon.co.uk, torvalds@...ux-foundation.org,
        linux-kernel@...r.kernel.org, gregkh@...uxfoundation.org,
        arjan.van.de.ven@...el.com, peterz@...radead.org,
        Andi Kleen <ak@...ux.intel.com>, jeyu@...nel.org
Subject: Re: [PATCH v2] retpoline/module: Warn for missing retpoline in
 module

On Tue, 16 Jan 2018, Andi Kleen wrote:

> Thanks.
> 
> I just sent a v3 that changes the VERMAGIC only, based on Greg's 
> earlier feedback.
> 
> It has the drawbacks that it:
> - refuses loading instead of warns
> - doesn't stop refusing when the feature is runtime disabled
> 
> But it's much simpler, just a few lines of ifdef.
> 
> We can either go with the v3, or rework this one into a v4?

V3 is fine. Not loading is the right thing to do :)

Thanks,

	tglx