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

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Message-ID: <0575AF4FD06DD142AD198903C74E1CC87A5CE7E7@FMSMSX151.amr.corp.intel.com>
Date:   Tue, 16 Jan 2018 21:11:24 +0000
From:   "Van De Ven, Arjan" <arjan.van.de.ven@...el.com>
To:     Andi Kleen <andi@...stfloor.org>,
        Thomas Gleixner <tglx@...utronix.de>
CC:     "dwmw@...zon.co.uk" <dwmw@...zon.co.uk>,
        "torvalds@...ux-foundation.org" <torvalds@...ux-foundation.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "peterz@...radead.org" <peterz@...radead.org>,
        Andi Kleen <ak@...ux.intel.com>,
        "jeyu@...nel.org" <jeyu@...nel.org>
Subject: RE: [PATCH v2] retpoline/module: Warn for missing retpoline in
 module

> 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.

I think simple is good at this point