linux-kernel - Re: [PATCH v2 2/7] x86/entry/32: Simplify common

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Message-ID: <20190710201452.GK3419@hirez.programming.kicks-ass.net>
Date:   Wed, 10 Jul 2019 22:14:52 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     tglx@...utronix.de, bp@...en8.de, mingo@...nel.org,
        luto@...nel.org, torvalds@...ux-foundation.org, hpa@...or.com,
        dave.hansen@...ux.intel.com, jgross@...e.com,
        linux-kernel@...r.kernel.org, zhe.he@...driver.com,
        joel@...lfernandes.org, devel@...ukata.com
Subject: Re: [PATCH v2 2/7] x86/entry/32: Simplify common_exception

On Wed, Jul 10, 2019 at 04:11:37PM -0400, Steven Rostedt wrote:
> On Thu, 04 Jul 2019 21:55:57 +0200
> Peter Zijlstra <peterz@...radead.org> wrote:

> > -	cld
> 
> The only code change of this is that cld moved from the end to the
> beginning. As this appears to match other SAVE_ALL users with respect
> to ENCODE_FRAME_POINTER, this shouldn't be an issue.

On that, getting CLD and CLAC together is somewhere on the TODO list. It
is stupid they're not.