[PATCH] Fix topology.c location

When compiling a non-default subarch, topology.c is missing from the kernel
build.  This causes builds with CONFIG_HOTPLUG_CPU to fail.  In addition,
on Intel processors with cpuid level > 4, it causes intel_cacheinfo.c to
reference uninitialized data that should have been set up by the initcall
in topology.c which calls register_cpu.  This causes a kernel panic on boot
on newer Intel processors.  Moving topology.c to arch/i386/kernel fixes
both of these problems.

Thanks to Dan Hecht for finding and fixing this problem.

Signed-off-by: Zachary Amsden <zach@vmware.com>
Signed-off-by: Dan Hecht <dhect@vmware.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 1 insertions, 98 deletions

diff --git a/arch/i386/mach-default/Makefile b/arch/i386/mach-default/Makefile
index e95bb0237921..012fe34459e6 100644
--- a/arch/i386/mach-default/Makefile
+++ b/arch/i386/mach-default/Makefile
@@ -2,4 +2,4 @@
 # Makefile for the linux kernel.
 #
 
-obj-y                           := setup.o topology.o
+obj-y                           := setup.o
diff --git a/arch/i386/mach-default/topology.c b/arch/i386/mach-default/topology.c
deleted file mode 100644
index b64314069e78..000000000000
--- a/arch/i386/mach-default/topology.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * arch/i386/mach-generic/topology.c - Populate driverfs with topology information
- *
- * Written by: Matthew Dobson, IBM Corporation
- * Original Code: Paul Dorwin, IBM Corporation, Patrick Mochel, OSDL
- *
- * Copyright (C) 2002, IBM Corp.
- *
- * All rights reserved.          
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT.  See the GNU General Public License for more
- * details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Send feedback to <colpatch@us.ibm.com>
- */
-#include <linux/init.h>
-#include <linux/smp.h>
-#include <linux/nodemask.h>
-#include <asm/cpu.h>
-
-static struct i386_cpu cpu_devices[NR_CPUS];
-
-int arch_register_cpu(int num){
-        struct node *parent = NULL;
-        
-#ifdef CONFIG_NUMA
-        int node = cpu_to_node(num);
-        if (node_online(node))
-                parent = &node_devices[node].node;
-#endif /* CONFIG_NUMA */
-
-        return register_cpu(&cpu_devices[num].cpu, num, parent);
-}
-
-#ifdef CONFIG_HOTPLUG_CPU
-
-void arch_unregister_cpu(int num) {
-        struct node *parent = NULL;
-
-#ifdef CONFIG_NUMA
-        int node = cpu_to_node(num);
-        if (node_online(node))
-                parent = &node_devices[node].node;
-#endif /* CONFIG_NUMA */
-
-        return unregister_cpu(&cpu_devices[num].cpu, parent);
-}
-EXPORT_SYMBOL(arch_register_cpu);
-EXPORT_SYMBOL(arch_unregister_cpu);
-#endif /*CONFIG_HOTPLUG_CPU*/
-
-
-
-#ifdef CONFIG_NUMA
-#include <linux/mmzone.h>
-#include <asm/node.h>
-
-struct i386_node node_devices[MAX_NUMNODES];
-
-static int __init topology_init(void)
-{
-        int i;
-
-        for_each_online_node(i)
-                arch_register_node(i);
-
-        for_each_present_cpu(i)
-                arch_register_cpu(i);
-        return 0;
-}
-
-#else /* !CONFIG_NUMA */
-
-static int __init topology_init(void)
-{
-        int i;
-
-        for_each_present_cpu(i)
-                arch_register_cpu(i);
-        return 0;
-}
-
-#endif /* CONFIG_NUMA */
-
-subsys_initcall(topology_init);