linux-kernel - [Patch] x86: export cpu_llc

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Message-Id: <20090915082005.4701.86110.sendpatchset@localhost.localdomain>
Date:	Tue, 15 Sep 2009 04:17:34 -0400
From:	Amerigo Wang <amwang@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	Rusty Russell <rusty@...tcorp.com.au>, Tejun Heo <tj@...nel.org>,
	"H. Peter Anvin" <hpa@...or.com>, Mike Travis <travis@....com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Amerigo Wang <amwang@...hat.com>,
	Yinghai Lu <yinghai@...nel.org>, akpm@...ux-foundation.org,
	Ingo Molnar <mingo@...e.hu>
Subject: [Patch] x86: export cpu_llc_id for edac drivers


When I compiled today's Linus tree, I got a link error from
drivers/edac/edac_mce_amd.c:408, it complained about not finding
symbol 'per_cpu__cpu_llc_id'. This is due to we don't export
'cpu_llc_id'.

This patch fixes it.

Signed-off-by: WANG Cong <amwang@...hat.com>
Cc: H. Peter Anvin <hpa@...or.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Ingo Molnar <mingo@...e.hu>
Cc: Yinghai Lu <yinghai@...nel.org>
Cc: Rusty Russell <rusty@...tcorp.com.au>
Cc: Tejun Heo <tj@...nel.org>
Cc: Mike Travis <travis@....com>

---
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index c36cc14..3241773 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -99,6 +99,7 @@ EXPORT_SYMBOL(smp_num_siblings);
 
 /* Last level cache ID of each logical CPU */
 DEFINE_PER_CPU(u16, cpu_llc_id) = BAD_APICID;
+EXPORT_PER_CPU_SYMBOL(cpu_llc_id);
 
 /* representing HT siblings of each logical CPU */
 DEFINE_PER_CPU(cpumask_var_t, cpu_sibling_map);
--
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