linux-kernel - [PATCH -tip] x86,idt_descr -- use NR_VECTORS instead of hardcoded number

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Message-ID: <20090708180353.GH5301@lenovo>
Date:	Wed, 8 Jul 2009 22:03:53 +0400
From:	Cyrill Gorcunov <gorcunov@...nvz.org>
To:	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Yinghai Lu <yinghai@...nel.org>
Subject: [PATCH -tip] x86,idt_descr -- use NR_VECTORS instead of hardcoded
	number

Signed-off-by: Cyrill Gorcunov <gorcunov@...nvz.org>
---

Please review

 arch/x86/kernel/cpu/common.c |    2 +-
 arch/x86/kernel/traps.c      |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

Index: linux-2.6.git/arch/x86/kernel/cpu/common.c
=====================================================================
--- linux-2.6.git.orig/arch/x86/kernel/cpu/common.c
+++ linux-2.6.git/arch/x86/kernel/cpu/common.c
@@ -982,7 +982,7 @@ static __init int setup_disablecpuid(cha
 __setup("clearcpuid=", setup_disablecpuid);
 
 #ifdef CONFIG_X86_64
-struct desc_ptr idt_descr = { 256 * 16 - 1, (unsigned long) idt_table };
+struct desc_ptr idt_descr = { NR_VECTORS * 16 - 1, (unsigned long) idt_table };
 
 DEFINE_PER_CPU_FIRST(union irq_stack_union,
 		     irq_stack_union) __aligned(PAGE_SIZE);
Index: linux-2.6.git/arch/x86/kernel/traps.c
=====================================================================
--- linux-2.6.git.orig/arch/x86/kernel/traps.c
+++ linux-2.6.git/arch/x86/kernel/traps.c
@@ -76,7 +76,7 @@ char ignore_fpu_irq;
  * F0 0F bug workaround.. We have a special link segment
  * for this.
  */
-gate_desc idt_table[256]
+gate_desc idt_table[NR_VECTORS]
 	__attribute__((__section__(".data.idt"))) = { { { { 0, 0 } } }, };
 #endif
 
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