diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 290f9c838b35..06198ced2245 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -87,7 +87,6 @@ config MMU_SUN3
 config USE_GENERIC_HARDIRQS
 	bool "Use genirq"
 	depends on MMU
-	depends on !Q40
 	select HAVE_GENERIC_HARDIRQS
 	select GENERIC_IRQ_SHOW
 
diff --git a/arch/m68k/include/asm/q40ints.h b/arch/m68k/include/asm/q40ints.h
index 3d970afb708f..01cdbb4da465 100644
--- a/arch/m68k/include/asm/q40ints.h
+++ b/arch/m68k/include/asm/q40ints.h
@@ -25,5 +25,7 @@
 #define Q40_IRQ14_MASK       (1<<6)
 #define Q40_IRQ15_MASK       (1<<7)
 
+#ifndef CONFIG_GENERIC_HARDIRQS
 extern unsigned long q40_probe_irq_on (void);
 extern int q40_probe_irq_off (unsigned long irqs);
+#endif
diff --git a/arch/m68k/q40/q40ints.c b/arch/m68k/q40/q40ints.c
index afe600c03659..f1e5288f043f 100644
--- a/arch/m68k/q40/q40ints.c
+++ b/arch/m68k/q40/q40ints.c
@@ -15,10 +15,14 @@
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/interrupt.h>
+#ifdef CONFIG_GENERIC_HARDIRQS
+#include <linux/irq.h>
+#else
+#include <asm/irq.h>
+#endif
 
 #include <asm/ptrace.h>
 #include <asm/system.h>
-#include <asm/irq.h>
 #include <asm/traps.h>
 
 #include <asm/q40_master.h>
@@ -326,6 +330,7 @@ void q40_irq_disable(struct irq_data *data)
 	}
 }
 
+#ifndef CONFIG_GENERIC_HARDIRQS
 unsigned long q40_probe_irq_on(void)
 {
 	printk("irq probing not working - reconfigure the driver to avoid this\n");
@@ -335,3 +340,4 @@ int q40_probe_irq_off(unsigned long irqs)
 {
 	return -1;
 }
+#endif