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can: ifi: Increment TX counters only on real transmission 

Only increment the TX counters in the irq handler if a CAN message
was sent. The current code incremented the counters also if the TX
FIFO empty interrupt happened, which is incorrect.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Oliver Hartkopp <socketcan@hartkopp.net>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Marek Vasut 2016-05-08 00:34:15 +02:00 committed by Marc Kleine-Budde
parent ca79408986
commit 1acd80fb98
1 changed files with 4 additions and 2 deletions
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6
drivers/net/can/ifi_canfd/ifi_canfd.c
View File

@ -522,13 +522,15 @@ static irqreturn_t ifi_canfd_isr(int irq, void *dev_id)
}
/* TX IRQ */
if (isr & tx_irq_mask) {
if (isr & IFI_CANFD_INTERRUPT_TXFIFO_REMOVE) {
stats->tx_bytes += can_get_echo_skb(ndev, 0);
stats->tx_packets++;
can_led_event(ndev, CAN_LED_EVENT_TX);
netif_wake_queue(ndev);
}
if (isr & tx_irq_mask)
netif_wake_queue(ndev);
return IRQ_HANDLED;
}