--- ath/if_athvar.h~	2009-06-13 09:38:53.000000000 +0200
+++ ath/if_athvar.h	2009-06-13 09:38:53.000000000 +0200
@@ -103,11 +103,6 @@
 /*
  * Guess how the interrupt handler should work.
  */
-#if !defined(IRQ_NONE)
-typedef void irqreturn_t;
-#define	IRQ_NONE
-#define	IRQ_HANDLED
-#endif /* !defined(IRQ_NONE) */
 
 #ifndef SET_MODULE_OWNER
 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23)