[PATCH] x86_64: Clear APIC feature bit when local APIC is disabled

Needed for other checks later in ACPI.

Pointed out by Len Brown
Signed-off-by: NAndi Kleen <ak@suse.de>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

arch/x86_64/kernel/setup.c

@@ -353,8 +353,10 @@ static __init void parse_cmdline_early (char ** cmdline_p)
 		if (fullarg(from, "enable_timer_pin_1"))
 			disable_timer_pin_1 = -1;
 
-		if (fullarg(from, "nolapic") || fullarg(from, "disableapic"))
+		if (fullarg(from, "nolapic") || fullarg(from, "disableapic")) {
+			clear_bit(X86_FEATURE_APIC, boot_cpu_data.x86_capability);
 			disable_apic = 1;
+		}
 
 		if (fullarg(from, "noapic"))
 			skip_ioapic_setup = 1;