From: Michael Ellerman <mpe@ellerman.id.au>
To: Zhouyi Zhou <zhouzhouyi@gmail.com>
Cc: aneesh.kumar@linux.vnet.ibm.com, linux-kernel@vger.kernel.org,
jbaron@akamai.com, paulus@samba.org, jk@ozlabs.org,
Zhouyi Zhou <yizhouzhou@ict.ac.cn>,
paulmck@linux.vnet.ibm.com, linuxppc-dev@lists.ozlabs.org,
anton@samba.org
Subject: Re: [PATCH 1/1] powerpc/jump_label: use HAVE_JUMP_LABEL?
Date: Thu, 21 Aug 2014 17:34:53 +1000 [thread overview]
Message-ID: <1408606493.9307.7.camel@concordia> (raw)
In-Reply-To: <1408588883-26783-1-git-send-email-yizhouzhou@ict.ac.cn>
On Thu, 2014-08-21 at 10:41 +0800, Zhouyi Zhou wrote:
> CONFIG_JUMP_LABEL doesn't ensure HAVE_JUMP_LABEL, if it
> is not the case use maintainers's own mutex to guard
> the modification of global values.
OK, so CONFIG_JUMP_LABEL says the user wants to use jump labels. But we also
need the toolchain to support it.
That is reflected in CC_HAVE_ASM_GOTO=y, and if both are set then
HAVE_JUMP_LABEL is set to true.
So this looks right to me.
cheers
prev parent reply other threads:[~2014-08-21 7:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-21 2:41 [PATCH 1/1] powerpc/jump_label: use HAVE_JUMP_LABEL? Zhouyi Zhou
2014-08-21 7:34 ` Michael Ellerman [this message]
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