--- zzzz-none-000/linux-2.6.32.61/arch/mips/include/asm/cevt-r4k.h	2013-06-10 09:43:48.000000000 +0000
+++ ar10-7272-687/linux-2.6.32.61/arch/mips/include/asm/cevt-r4k.h	2013-09-11 10:30:37.000000000 +0000
@@ -22,7 +22,11 @@
 irqreturn_t c0_compare_interrupt(int, void *);
 
 extern struct irqaction c0_compare_irqaction;
+#ifndef CONFIG_MIPS_MT_SMTC
+extern int cp0_timer_irq_installed[NR_CPUS];
+#else/*--- #ifndef CONFIG_MIPS_MT_SMTC ---*/
 extern int cp0_timer_irq_installed;
+#endif/*--- #else ---*//*--- #ifndef CONFIG_MIPS_MT_SMTC ---*/
 
 /*
  * Possibly handle a performance counter interrupt.