From: "H. Peter Anvin" <hpa@zytor.com>
Subject: Re: [PATCH RFC V2 3/5] jump_label: if a key has already been initialized,
 don't nop it out
Date: Thu, 06 Oct 2011 11:35:49 -0700
Message-ID: <4E8DF505.6050807@zytor.com>
References: <477dead9647029012f93c651f2892ed0e86b89e7.1317506051.git.jeremy.fitzhardinge@citrix.com> <20111003150205.GB2462@redhat.com> <4E89E28C.7010700@goop.org> <20111004141011.GA2520@redhat.com> <4E8B3489.60902@zytor.com> <4E8CF348.4080405@goop.org> <4E8CF385.2080804@zytor.com> <4E8DEB19.1050509@goop.org> <20111006181055.GA2505@redhat.com> <4E8DF02B.7010406@goop.org> <20111006183319.GB2505@redhat.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit
Return-path: <linux-kernel-owner@vger.kernel.org>
In-Reply-To: <20111006183319.GB2505@redhat.com>
Sender: linux-kernel-owner@vger.kernel.org
To: Jason Baron <jbaron@redhat.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>, Steven Rostedt <rostedt@goodmis.org>, "David S. Miller" <davem@davemloft.net>, David Daney <david.daney@cavium.com>, Michael Ellerman <michael@ellerman.id.au>, Jan Glauber <jang@linux.vnet.ibm.com>, the arch/x86 maintainers <x86@kernel.org>, Xen Devel <xen-devel@lists.xensource.com>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>, peterz@infradead.org, rth@redhat.com
List-Id: xen-devel@lists.xenproject.org

On 10/06/2011 11:33 AM, Jason Baron wrote:
> 
> cool. It does add some complication, I think...detecting the 2-byte vs.
> 5-byte, and if done at boot time, possibly taking the undesired
> branch...
> 

It has to be done at build time to be sane, IMO.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.