commit 5524ea320d80e3ac6aeeec44216660831c76da08
author Andi Kleen <andi@firstfloor.org> Tue Mar 11 02:23:20 2008 +0100
committer Ingo Molnar <mingo@elte.hu> Thu Apr 17 17:41:29 2008 +0200
tree c4215dbc41cedac15838ff5110958fa7ed8e9a67
parent 366932deb335f0b84a08463c5c912bd42ac3397a

x86: don't set up early exception handlers for external interrupts

All of early setup runs with interrupts disabled, so there is no
need to set up early exception handlers for vectors >= 32

This saves some minor text size.

Signed-off-by: Andi Kleen <ak@suse.de>
Cc: mingo@elte.hu
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

include/asm-x86/segment.h

diff --git a/include/asm-x86/segment.h b/include/asm-x86/segment.h
index 23f0535..ed5131d 100644
--- a/include/asm-x86/segment.h
+++ b/include/asm-x86/segment.h
@@ -191,13 +191,14 @@
 #define SEGMENT_TI_MASK		0x4
 
 #define IDT_ENTRIES 256
+#define NUM_EXCEPTION_VECTORS 32
 #define GDT_SIZE (GDT_ENTRIES * 8)
 #define GDT_ENTRY_TLS_ENTRIES 3
 #define TLS_SIZE (GDT_ENTRY_TLS_ENTRIES * 8)
 
 #ifdef __KERNEL__
 #ifndef __ASSEMBLY__
-extern const char early_idt_handlers[IDT_ENTRIES][10];
+extern const char early_idt_handlers[NUM_EXCEPTION_VECTORS][10];
 #endif
 #endif