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Subject: Re: [PATCH 1/1] powerpc/jump_label: use HAVE_JUMP_LABEL?
From: Michael Ellerman <mpe@ellerman.id.au>
To: Zhouyi Zhou <zhouzhouyi@gmail.com>
Date: Thu, 21 Aug 2014 17:34:53 +1000
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Cc: aneesh.kumar@linux.vnet.ibm.com, linux-kernel@vger.kernel.org,
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 Zhouyi Zhou <yizhouzhou@ict.ac.cn>, paulmck@linux.vnet.ibm.com,
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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