The code already exits the function on !ir before this condition. No
need to check again if anything is set as IR_ALL_INT is 0xffffffff.

Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
---
 drivers/net/can/m_can/m_can.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c
index 563625a701fc..8eb327ae3bdf 100644
--- a/drivers/net/can/m_can/m_can.c
+++ b/drivers/net/can/m_can/m_can.c
@@ -1083,8 +1083,7 @@ static irqreturn_t m_can_isr(int irq, void *dev_id)
 		return IRQ_NONE;
 
 	/* ACK all irqs */
-	if (ir & IR_ALL_INT)
-		m_can_write(cdev, M_CAN_IR, ir);
+	m_can_write(cdev, M_CAN_IR, ir);
 
 	if (cdev->ops->clear_interrupts)
 		cdev->ops->clear_interrupts(cdev);
-- 
2.39.2

On Wed, Mar 15, 2023 at 12:05:32PM +0100, Markus Schneider-Pargmann wrote:
> The code already exits the function on !ir before this condition. No
> need to check again if anything is set as IR_ALL_INT is 0xffffffff.
> 
> Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>

Reviewed-by: Simon Horman <simon.horman@corigine.com>