linux-kernel - [PATCH] x86: use the same node

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Message-ID: <201109191603.15560.hartleys@visionengravers.com>
Date:	Mon, 19 Sep 2011 16:03:14 -0700
From:	H Hartley Sweeten <hartleys@...ionengravers.com>
To:	Linux Kernel <linux-kernel@...r.kernel.org>
CC:	<x86@...nel.org>, <tglx@...utronix.de>, <mingo@...hat.com>,
	<hpa@...or.com>, <tj@...nel.org>, <yinghai@...nel.org>
Subject: [PATCH] x86: use the same node_distance for 32 and 64-bit

The node_distance function is not x86 64-bit specific.  Having the #ifdef
around the extern function declaration and the #define causes the default
node_distance macro to be used in asm-generic/topology.h. This also causes
a sparse warning in arch/x86/mm/numa.c when CONFIG_X86_64 is not set:

warning: symbol '__node_distance' was not declared. Should it be static?

Remove the #ifdef to fix both issues.

Signed-off-by: H Hartley Sweeten <hsweeten@...ionengravers.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: "H. Peter Anvin" <hpa@...or.com>
Cc: Tejun Heo <tj@...nel.org>
Cc: Yinghai Lu <yinghai@...nel.org>

---

diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h
index c006924..800f77c 100644
--- a/arch/x86/include/asm/topology.h
+++ b/arch/x86/include/asm/topology.h
@@ -130,10 +130,8 @@ extern void setup_node_to_cpumask_map(void);
 	.balance_interval	= 1,					\
 }

-#ifdef CONFIG_X86_64
 extern int __node_distance(int, int);
 #define node_distance(a, b) __node_distance(a, b)
-#endif

 #else /* !CONFIG_NUMA */

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