diff --git a/include/asm-x86/apic.h b/include/asm-x86/apic.h
index 133c998..e9e09b2 100644
--- a/include/asm-x86/apic.h
+++ b/include/asm-x86/apic.h
@@ -76,9 +76,7 @@
 static inline void ack_APIC_irq(void)
 {
 	/*
-	 * ack_APIC_irq() actually gets compiled as a single instruction:
-	 * - a single rmw on Pentium/82489DX
-	 * - a single write on P6+ cores (CONFIG_X86_GOOD_APIC)
+	 * ack_APIC_irq() actually gets compiled as a single instruction
 	 * ... yummie.
 	 */