[IA64] prevent sn2 specific code to be run in generic kernels

Prevent SN2 specific code to be executed on non SN2 platforms when
running a generic kernel.

Signed-off-by: Jes Sorensen <[e-mail]>
Signed-off-by: Tony Luck <[e-mail]>

arch/ia64/sn/kernel/mca.c

···
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
- * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ * Copyright (c) 2000-2006 Silicon Graphics, Inc.  All Rights Reserved.
  */
 
 #include <linux/types.h>
···
 
 static int __init sn_salinfo_init(void)
 {
-	salinfo_platform_oemdata = &sn_salinfo_platform_oemdata;
+	if (ia64_platform_is("sn2"))
+		salinfo_platform_oemdata = &sn_salinfo_platform_oemdata;
 	return 0;
 }
 

arch/ia64/sn/kernel/sn2/sn_hwperf.c

···
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
- * Copyright (C) 2004-2005 Silicon Graphics, Inc. All rights reserved.
+ * Copyright (C) 2004-2006 Silicon Graphics, Inc. All rights reserved.
  *
  * SGI Altix topology and hardware performance monitoring API.
  * Mark Goodwin <[e-mail]>. 
···
 static int __devinit sn_hwperf_misc_register_init(void)
 {
 	int e;
+
+	if (!ia64_platform_is("sn2"))
+		return 0;
 
 	sn_hwperf_init();