[PATCH][2.5] Honour dont_enable_local_apic flag

[Zwane Mwaikambo (zwane@linuxpower.ca)]

This flag doesn't get honoured in all cases, we still try and frob the 
APIC in APIC_init_uniprocessor, Tested by Brian.

Alan can i also send you a patch to disable the local apic from the kernel 
command line? It would be dependent on this patch.

	Zwane

Index: linux-2.5/arch/i386/kernel/apic.c
===================================================================
RCS file: /home/cvs/linux-2.5/arch/i386/kernel/apic.c,v
retrieving revision 1.50
diff -u -p -B -r1.50 apic.c
--- linux-2.5/arch/i386/kernel/apic.c	30 May 2003 20:14:41 -0000	1.50
+++ linux-2.5/arch/i386/kernel/apic.c	31 May 2003 05:53:34 -0000
@@ -665,6 +665,7 @@ static int __init detect_init_APIC (void
 	return 0;
 
 no_apic:
+	dont_enable_local_apic = 1;
 	printk("No local APIC present or hardware disabled\n");
 	return -1;
 }
@@ -1127,6 +1128,9 @@ asmlinkage void smp_error_interrupt(void
  */
 int __init APIC_init_uniprocessor (void)
 {
+	if (dont_enable_local_apic)
+		return -1;
+
 	if (!smp_found_config && !cpu_has_apic)
 		return -1;
 

-- 
function.linuxpower.ca
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