Date: Wed, 10 Jan 2018 17:01:22 -0800
From: Andi Kleen <andi@firstfloor.org>
To: Andy Lutomirski <luto@amacapital.net>
Cc: Andi Kleen <andi@firstfloor.org>, Brian Gerst <brgerst@gmail.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        the arch/x86 maintainers <x86@kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        David Woodhouse <dwmw@amazon.co.uk>,
        Paul Turner <pjt@google.com>,
        Andy Lutomirski <luto@kernel.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Tom Lendacky <thomas.lendacky@amd.com>,
        Tim Chen <tim.c.chen@linux.intel.com>,
        Greg Kroah-Hartman <gregkh@linux-foundation.org>,
        Dave Hansen <dave.hansen@intel.com>,
        Jiri Kosina <jikos@kernel.org>, Andi Kleen <ak@linux.intel.com>
Subject: Re: [PATCH v1 1/8] x86/entry/clearregs: Remove partial stack frame
 in fast system call
Message-ID: <20180111010122.t3m3kghctambsby5@two.firstfloor.org>
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> So your series removes the old declarative annotation and then will add a new TI flag to make it work again?

The flag is a lot simpler than the previous assembler mess.

I thought the general trend in entry* was to move assembler to C?

> 
> This whole thing seems to be at the wrong end of the cost benefit curve.

But if you prefer assembler mess we can go back to it, no problem.

-Andi