}
 
 static void
-nop (struct irq_data *data)
+iosapic_nop (struct irq_data *data)
 {
        /* do nothing... */
 }
 #define iosapic_shutdown_level_irq     mask_irq
 #define iosapic_enable_level_irq       unmask_irq
 #define iosapic_disable_level_irq      mask_irq
-#define iosapic_ack_level_irq          nop
+#define iosapic_ack_level_irq          iosapic_nop
 
 static struct irq_chip irq_type_iosapic_level = {
        .name =                 "IO-SAPIC-level",
 }
 
 #define iosapic_enable_edge_irq                unmask_irq
-#define iosapic_disable_edge_irq       nop
+#define iosapic_disable_edge_irq       iosapic_nop
 
 static struct irq_chip irq_type_iosapic_edge = {
        .name =                 "IO-SAPIC-edge",