linux-kernel - Re: [RFD] x86: The future of MPX

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Date:   Sun, 29 Apr 2018 21:44:00 -0700
From:   Dave Hansen <dave.hansen@...ux.intel.com>
To:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Ingo Molnar <mingo@...nel.org>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Borislav Petkov <bp@...en8.de>
Subject: Re: [RFD] x86: The future of MPX

On 04/28/2018 09:44 AM, Linus Torvalds wrote:
> On Sat, Apr 28, 2018 at 9:36 AM Linus Torvalds <
> torvalds@...ux-foundation.org> wrote:
> 
>> They need to be run as root.
> Side note: don't get me wrong. If the MPX stuff isn't supported by gcc,
> then there is little point in us supporting it in the kernel either.

The loss of the GCC support is definitely a bummer.

There are no objections from me against removing it from future kernels.
 I think it will be pretty straightforward, just leaving the prctl()
numbers as placeholders.