From mboxrd@z Thu Jan  1 00:00:00 1970
From: will.deacon@arm.com (Will Deacon)
Date: Fri, 13 Dec 2013 15:55:13 +0000
Subject: [PATCH v6 6/7] arm64, jump label: optimize jump label
 implementation
In-Reply-To: <20131213105023.67e45640@gandalf.local.home>
References: <1386691433-6827-1-git-send-email-liuj97@gmail.com>
 <1386691433-6827-7-git-send-email-liuj97@gmail.com>
 <20131213154104.GG19177@mudshark.cambridge.arm.com>
 <20131213105023.67e45640@gandalf.local.home>
Message-ID: <20131213155513.GI19177@mudshark.cambridge.arm.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Fri, Dec 13, 2013 at 03:50:23PM +0000, Steven Rostedt wrote:
> On Fri, 13 Dec 2013 15:41:04 +0000
> Will Deacon <will.deacon@arm.com> wrote:
> 
> > > +#include <linux/kernel.h>
> > > +#include <linux/jump_label.h>
> > > +#include <asm/jump_label.h>
> > > +#include <asm/insn.h>
> > > +
> > > +#ifdef HAVE_JUMP_LABEL
> > 
> > Slightly worrying... this should be CONFIG_HAVE_JUMP_LABEL, right? How did
> > you manage to test this code?
> 
> In <linux/jump_label.h> we have:
> 
> #if defined(CC_HAVE_ASM_GOTO) && defined(CONFIG_JUMP_LABEL)
> 
> [...]
> 
> # include <asm/jump_label.h>
> # define HAVE_JUMP_LABEL
> #endif	/* CC_HAVE_ASM_GOTO && CONFIG_JUMP_LABEL */
> 

Phew, that explains things! Cheers, Steve.

Will