1 files changed, 1 insertions, 4 deletions

diff --git a/drivers/irqchip/irq-mbigen.c b/drivers/irqchip/irq-mbigen.c
index 2fa1e457190d..31d6b5a582d2 100644
--- a/drivers/irqchip/irq-mbigen.c
+++ b/drivers/irqchip/irq-mbigen.c
@@ -106,10 +106,7 @@ static inline void get_mbigen_type_reg(irq_hw_number_t hwirq,
 static inline void get_mbigen_clear_reg(irq_hw_number_t hwirq,
                                         u32 *mask, u32 *addr)
 {
-        unsigned int ofst;
-
-        hwirq -= RESERVED_IRQ_PER_MBIGEN_CHIP;
-        ofst = hwirq / 32 * 4;
+        unsigned int ofst = (hwirq / 32) * 4;
 
         *mask = 1 << (hwirq % 32);
         *addr = ofst + REG_MBIGEN_CLEAR_OFFSET;