There is error from cppcheck tool
"Shifting signed 32-bit value by 31 bits is undefined behaviour errors"
change to use BIT() marco for improvement.
Signed-off-by: Phong Tran <tranmanphong@xxxxxxxxx>
---
arch/arm/mach-footbridge/dc21285.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/mach-footbridge/dc21285.c b/arch/arm/mach-footbridge/dc21285.c
index 8b81a17f675d..edea41e0256f 100644
--- a/arch/arm/mach-footbridge/dc21285.c
+++ b/arch/arm/mach-footbridge/dc21285.c
@@ -230,7 +230,7 @@ static irqreturn_t dc21285_parity_irq(int irq, void *dev_id)
printk("\n");
cmd = *CSR_PCICMD & 0xffff;
- *CSR_PCICMD = cmd | 1 << 31;
+ *CSR_PCICMD = cmd | BIT(31);
/*
* back off this interrupt
--
2.11.0
