--- a/arch/mips/ath79/irq.c
+++ b/arch/mips/ath79/irq.c
@@ -35,44 +35,17 @@ static void ath79_misc_irq_handler(unsig
 	pending = __raw_readl(base + AR71XX_RESET_REG_MISC_INT_STATUS) &
 		  __raw_readl(base + AR71XX_RESET_REG_MISC_INT_ENABLE);
 
-	if (pending & MISC_INT_UART)
-		generic_handle_irq(ATH79_MISC_IRQ_UART);
-
-	else if (pending & MISC_INT_DMA)
-		generic_handle_irq(ATH79_MISC_IRQ_DMA);
-
-	else if (pending & MISC_INT_PERFC)
-		generic_handle_irq(ATH79_MISC_IRQ_PERFC);
-
-	else if (pending & MISC_INT_TIMER)
-		generic_handle_irq(ATH79_MISC_IRQ_TIMER);
-
-	else if (pending & MISC_INT_TIMER2)
-		generic_handle_irq(ATH79_MISC_IRQ_TIMER2);
-
-	else if (pending & MISC_INT_TIMER3)
-		generic_handle_irq(ATH79_MISC_IRQ_TIMER3);
-
-	else if (pending & MISC_INT_TIMER4)
-		generic_handle_irq(ATH79_MISC_IRQ_TIMER4);
-
-	else if (pending & MISC_INT_OHCI)
-		generic_handle_irq(ATH79_MISC_IRQ_OHCI);
-
-	else if (pending & MISC_INT_ERROR)
-		generic_handle_irq(ATH79_MISC_IRQ_ERROR);
-
-	else if (pending & MISC_INT_GPIO)
-		generic_handle_irq(ATH79_MISC_IRQ_GPIO);
-
-	else if (pending & MISC_INT_WDOG)
-		generic_handle_irq(ATH79_MISC_IRQ_WDOG);
+	if (!pending) {
+		spurious_interrupt();
+		return;
+	}
 
-	else if (pending & MISC_INT_ETHSW)
-		generic_handle_irq(ATH79_MISC_IRQ_ETHSW);
+	while (pending) {
+		int bit = __ffs(pending);
 
-	else
-		spurious_interrupt();
+		generic_handle_irq(ATH79_MISC_IRQ(bit));
+		pending &= ~BIT(bit);
+	}
 }
 
 static void ar71xx_misc_irq_unmask(struct irq_data *d)
--- a/arch/mips/include/asm/mach-ath79/irq.h
+++ b/arch/mips/include/asm/mach-ath79/irq.h
@@ -14,6 +14,7 @@
 
 #define ATH79_MISC_IRQ_BASE	8
 #define ATH79_MISC_IRQ_COUNT	32
+#define ATH79_MISC_IRQ(_x)	(ATH79_MISC_IRQ_BASE + (_x))
 
 #define ATH79_PCI_IRQ_BASE	(ATH79_MISC_IRQ_BASE + ATH79_MISC_IRQ_COUNT)
 #define ATH79_PCI_IRQ_COUNT	6