linux-kernel - Re: [patch 1/2] x86/platform/goldfish: Prevent unconditional loading

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Date:   Wed, 15 Feb 2017 12:17:47 +0000
From:   Alan Cox <alan@...ux.intel.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Peter Zijlstra <peterz@...radead.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Gabriel C <nix.or.die@...il.com>,
        Ingo Molnar <mingo@...nel.org>, Peter Anvin <hpa@...or.com>,
        Borislav Petkov <bp@...en8.de>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Mike Galbraith <efault@....de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Ruslan Ruslichenko <rruslich@...co.com>, stable@...r.kernel.org
Subject: Re: [patch 1/2] x86/platform/goldfish: Prevent unconditional loading

> > > I'm seriously grumpy about this engineering trainwreck, which has
> > > seven
> > > SOBs from Intel developers for 50 lines of code. And none of them
> > > figured
> > > out that this is broken. Impressive fail!

It was discussed at the time, documented at the time. Unfortunately the
people who did the emulator didn't feel the urge to provide a way to
detect the platform was Goldfish.

Historically it also used its own custom device discovery scheme. Given
the limited use of older versions of Goldfish it might well make sense
to remove support for the older emulator versions.

Alan