linux-kernel - Re: compile x86

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Date:	Thu, 25 Jul 2013 08:17:17 -0400
From:	Tom Rini <trini@...com>
To:	Paul Bolle <pebolle@...cali.nl>
CC:	Jianpeng Ma <majianpeng@...il.com>,
	Rusty Russell <rusty@...tcorp.com.au>, <tglx@...utronix.de>,
	<x86@...nel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: compile x86_64 waring

On 07/25/2013 05:41 AM, Paul Bolle wrote:
> Tom,
> 
> On Thu, 2013-07-25 at 10:53 +0200, Paul Bolle wrote:
>> But I've just pulled top-of-tree Linus, ie commit 07bc9dc1b0
>> ("git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc'"). I'll
>> try to build that and I 'll send you my .config if this all is still
>> triggered.
> 
> It is still seen with "make bzImage" at v3.11-rc2-185-g07bc9dc (current
> Linus' tip-of-tree). I get, in summary:
>     WARNING: arch/x86/mm/built-in.o(.text.unlikely+0xbf2): Section mismatch in reference from the function __node_set.constprop.0() to the variable .init.data:numa_nodes_parsed
>     WARNING: arch/x86/built-in.o(.text.unlikely+0x140e): Section mismatch in reference from the function __node_set.constprop.0() to the variable .init.data:numa_nodes_parsed
>     WARNING: vmlinux.o(.text.unlikely+0x1444): Section mismatch in reference from the function __node_set.constprop.0() to the variable .init.data:numa_nodes_parsed
> 
> But it is all the same thing (the issue apparently just repeat itself
> when arch/x86/mm/built-in.o is merged into arch/x86/built-in.o, and
> again when arch/x86/built-in.o is merged into vmlinux.o).

OK, thanks.  I just posted a patch that fixes the warning here.  The
problem is that __node_set wasn't being inlined by the compiler, so you
have the section mis-match above.

-- 
Tom
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