linux-kernel - [PATCH 1/2] x86, acpi: add MAX_LOCAL

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Date:	Thu, 16 Dec 2010 19:09:24 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	"H. Peter Anvin" <hpa@...or.com>
CC:	Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Wu Fengguang <fengguang.wu@...el.com>,
	Peter Zijlstra <peterz@...radead.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Nikanth Karthikesan <knikanth@...e.de>,
	David Rientjes <rientjes@...gle.com>,
	"Zheng, Shaohui" <shaohui.zheng@...el.com>,
	"linux-hotplug@...r.kernel.org" <linux-hotplug@...r.kernel.org>,
	Eric Dumazet <eric.dumazet@...il.com>,
	Bjorn Helgaas <bjorn.helgaas@...com>,
	Venkatesh Pallipadi <venki@...gle.com>,
	Nikhil Rao <ncrao@...gle.com>,
	Takuya Yoshikawa <yoshikawa.takuya@....ntt.co.jp>
Subject: [PATCH 1/2] x86, acpi: add MAX_LOCAL_APIC for 32bit

We should use MAX_LOCAL_APIC for max apic ids
and MAX_APICS as number of local apics.

also apic_version[] array should max apic id related.

Signed-off-by: Yinghai Lu <yinghai@...nel.org>

---
 arch/x86/include/asm/apicdef.h |    1 +
 arch/x86/include/asm/mpspec.h  |    2 +-
 arch/x86/kernel/apic/apic.c    |    2 +-
 3 files changed, 3 insertions(+), 2 deletions(-)

Index: linux-2.6/arch/x86/include/asm/apicdef.h
===================================================================
--- linux-2.6.orig/arch/x86/include/asm/apicdef.h
+++ linux-2.6/arch/x86/include/asm/apicdef.h
@@ -145,6 +145,7 @@
 
 #ifdef CONFIG_X86_32
 # define MAX_IO_APICS 64
+# define MAX_LOCAL_APIC 256
 #else
 # define MAX_IO_APICS 128
 # define MAX_LOCAL_APIC 32768
Index: linux-2.6/arch/x86/kernel/apic/apic.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/apic/apic.c
+++ linux-2.6/arch/x86/kernel/apic/apic.c
@@ -1689,7 +1689,7 @@ void __init register_lapic_address(unsig
  * This initializes the IO-APIC and APIC hardware if this is
  * a UP kernel.
  */
-int apic_version[MAX_APICS];
+int apic_version[MAX_LOCAL_APIC];
 
 int __init APIC_init_uniprocessor(void)
 {
Index: linux-2.6/arch/x86/include/asm/mpspec.h
===================================================================
--- linux-2.6.orig/arch/x86/include/asm/mpspec.h
+++ linux-2.6/arch/x86/include/asm/mpspec.h
@@ -6,7 +6,7 @@
 #include <asm/mpspec_def.h>
 #include <asm/x86_init.h>
 
-extern int apic_version[MAX_APICS];
+extern int apic_version[];
 extern int pic_mode;
 
 #ifdef CONFIG_X86_32
--
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