linux-kernel - Re: [PATCH 14/43] x86/asm/64: Return to userspace from the trampoline stack

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Message-ID: <20171126173301.hqmnpez6jbjgksys@pd.tnic>
Date:   Sun, 26 Nov 2017 18:33:01 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     linux-kernel@...r.kernel.org,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Andy Lutomirski <luto@...capital.net>,
        Thomas Gleixner <tglx@...utronix.de>,
        "H . Peter Anvin" <hpa@...or.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH 14/43] x86/asm/64: Return to userspace from the
 trampoline stack

On Sun, Nov 26, 2017 at 03:18:47PM +0100, Ingo Molnar wrote:
> Heh, indeed - if by 'future generations' you mean 'the guys who merge it,
> a few months down the line'. ;-)

... and the poor souls who get to backport it and maybe even the guys
who merged it, get to look at this after some time has passed by and
then all of a sudden, they start scratching heads: "Why TF did we do
that then? What were we thinking?"

It happens even to the best of us. :-)

And entry code is tricky as hell so hell yeah! to all the commenting.

-- 
Regards/Gruss,
    Boris.

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