can: c_can: Avoid led toggling for every packet.

There is no point to toggle the RX led for every packet. Especially if
we have a full FIFO we want to avoid everything we can.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c
index 42c038d523c98a48ccd8250b43c534114b182601..01dc4941e3d003945f17026d6d47e0e77b227cf4 100644 (file)
--- a/drivers/net/can/c_can/c_can.c
+++ b/drivers/net/can/c_can/c_can.c
@@ -433,9 +433,6 @@ static int c_can_read_msg_object(struct net_device *dev, int iface, int ctrl)
 
        stats->rx_packets++;
        stats->rx_bytes += frame->can_dlc;
-
-       can_led_event(dev, CAN_LED_EVENT_RX);
-
        return 0;
 }
 
@@ -901,6 +898,10 @@ static int c_can_do_rx_poll(struct net_device *dev, int quota)
                pkts += n;
                quota -= n;
        }
+
+       if (pkts)
+               can_led_event(dev, CAN_LED_EVENT_RX);
+
        return pkts;
 }