From a37b7245e831a641df360ca41db6a71c023d3746 Mon Sep 17 00:00:00 2001 From: Vincent Mailhol Date: Tue, 19 Jul 2022 23:35:40 +0900 Subject: [PATCH] can: rcar_can: do not report txerr and rxerr during bus-off During bus off, the error count is greater than 255 and can not fit in a u8. Fixes: fd1159318e55 ("can: add Renesas R-Car CAN driver") Link: https://lore.kernel.org/all/20220719143550.3681-3-mailhol.vincent@wanadoo.fr Signed-off-by: Vincent Mailhol Signed-off-by: Marc Kleine-Budde --- drivers/net/can/rcar/rcar_can.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/can/rcar/rcar_can.c b/drivers/net/can/rcar/rcar_can.c index d45762f1cf6b..24d7a71def6a 100644 --- a/drivers/net/can/rcar/rcar_can.c +++ b/drivers/net/can/rcar/rcar_can.c @@ -232,11 +232,8 @@ static void rcar_can_error(struct net_device *ndev) if (eifr & (RCAR_CAN_EIFR_EWIF | RCAR_CAN_EIFR_EPIF)) { txerr = readb(&priv->regs->tecr); rxerr = readb(&priv->regs->recr); - if (skb) { + if (skb) cf->can_id |= CAN_ERR_CRTL; - cf->data[6] = txerr; - cf->data[7] = rxerr; - } } if (eifr & RCAR_CAN_EIFR_BEIF) { int rx_errors = 0, tx_errors = 0; @@ -336,6 +333,9 @@ static void rcar_can_error(struct net_device *ndev) can_bus_off(ndev); if (skb) cf->can_id |= CAN_ERR_BUSOFF; + } else if (skb) { + cf->data[6] = txerr; + cf->data[7] = rxerr; } if (eifr & RCAR_CAN_EIFR_ORIF) { netdev_dbg(priv->ndev, "Receive overrun error interrupt\n"); -- 2.20.1