OpenWrt – Rev 4

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Rev:
--- a/arch/mips/ralink/irq-gic.c
+++ b/arch/mips/ralink/irq-gic.c
@@ -15,6 +15,12 @@
 
 int get_c0_perfcount_int(void)
 {
+       /*
+        * Performance counter events are routed through GIC.
+        * Prevent them from firing on CPU IRQ7 as well
+        */
+       clear_c0_status(IE_SW0 << 7);
+
        return gic_get_c0_perfcount_int();
 }
 EXPORT_SYMBOL_GPL(get_c0_perfcount_int);