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Date: Wed, 10 Jan 2018 17:01:22 -0800 From: Andi Kleen <andi@...stfloor.org> To: Andy Lutomirski <luto@...capital.net> Cc: Andi Kleen <andi@...stfloor.org>, Brian Gerst <brgerst@...il.com>, Thomas Gleixner <tglx@...utronix.de>, the arch/x86 maintainers <x86@...nel.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Linus Torvalds <torvalds@...ux-foundation.org>, David Woodhouse <dwmw@...zon.co.uk>, Paul Turner <pjt@...gle.com>, Andy Lutomirski <luto@...nel.org>, Peter Zijlstra <peterz@...radead.org>, Tom Lendacky <thomas.lendacky@....com>, Tim Chen <tim.c.chen@...ux.intel.com>, Greg Kroah-Hartman <gregkh@...ux-foundation.org>, Dave Hansen <dave.hansen@...el.com>, Jiri Kosina <jikos@...nel.org>, Andi Kleen <ak@...ux.intel.com> Subject: Re: [PATCH v1 1/8] x86/entry/clearregs: Remove partial stack frame in fast system call > 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
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