linux-kernel - Re: [PATCH 4/6] x86/entry: Remove skip

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Message-ID: <CAJhGHyBkpwn1=wVTeMCpQmiq_=n3HzsEzHiipkK8GmJfkYJJaQ@mail.gmail.com>
Date:   Sat, 7 May 2022 10:52:32 +0800
From:   Lai Jiangshan <jiangshanlai@...il.com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     X86 ML <x86@...nel.org>, LKML <linux-kernel@...r.kernel.org>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Brian Gerst <brgerst@...il.com>,
        Andrew Cooper <Andrew.Cooper3@...rix.com>,
        Mark Rutland <mark.rutland@....com>
Subject: Re: [PATCH 4/6] x86/entry: Remove skip_r11rcx

On Fri, May 6, 2022 at 8:20 PM Peter Zijlstra <peterz@...radead.org> wrote:
>
> Yes, r11 and rcx have been restored previously, but since we're
> popping them anyway (into rsi) might as well pop them into their own
> regs -- setting them to the value they already are.
>
> Less magical code.
>
> Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>


Reviewed-by: Lai Jiangshan <jiangshanlai@...il.com>