diff --git a/[refs] b/[refs]
index 21fca89ff383..79a194fe0c58 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 833d0d8da41b80e5f7c3b34cb187b12c33ef66c8
+refs/heads/master: 33d9ff5985ff015cbaaef85285d19fe580487cf3
diff --git a/trunk/arch/microblaze/kernel/intc.c b/trunk/arch/microblaze/kernel/intc.c
index 6eea6f92b84e..03172c1da770 100644
--- a/trunk/arch/microblaze/kernel/intc.c
+++ b/trunk/arch/microblaze/kernel/intc.c
@@ -42,8 +42,16 @@ unsigned int nr_irq;
 
 static void intc_enable_or_unmask(unsigned int irq)
 {
+	unsigned long mask = 1 << irq;
 	pr_debug("enable_or_unmask: %d\n", irq);
-	out_be32(INTC_BASE + SIE, 1 << irq);
+	out_be32(INTC_BASE + SIE, mask);
+
+	/* ack level irqs because they can't be acked during
+	 * ack function since the handle_level_irq function
+	 * acks the irq before calling the interrupt handler
+	 */
+	if (irq_desc[irq].status & IRQ_LEVEL)
+		out_be32(INTC_BASE + IAR, mask);
 }
 
 static void intc_disable_or_mask(unsigned int irq)