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can: at91_can: at91_irq_err_line(): send error counters with state change

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Since 3e5c291c79 ("can: add CAN_ERR_CNT flag to notify availability
of error counter") there is a dedicated flag to inform the user space,
that there are CAN error counters in the CAN error frame.

In case the device is not in bus off mode, send the error counters to
user space and set CAN_ERR_CNT.

Link: https://lore.kernel.org/all/20231005-at91_can-rx_offload-v2-25-9987d53600e0@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Marc Kleine-Budde 2023-09-28 10:05:17 +02:00
parent 9df2faf947
commit 3db6154e44
1 changed files with 5 additions and 0 deletions
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5
drivers/net/can/at91_can.c
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@ -884,6 +884,11 @@ static void at91_irq_err_line(struct net_device *dev, const u32 reg_sr)
if (unlikely(!skb))
return;
if (new_state != CAN_STATE_BUS_OFF) {
cf->can_id |= CAN_ERR_CNT;
cf->data[6] = bec.txerr;
cf->data[7] = bec.rxerr;
}
netif_rx(skb);
}