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can: sun4i_can: do not report txerr and rxerr during bus-off

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[ Upstream commit 0ac15a8f661b941519379831d09bfb12271b23ee ]

During bus off, the error count is greater than 255 and can not fit in
a u8.

Fixes: 0738eff14d81 ("can: Allwinner A10/A20 CAN Controller support - Kernel module")
Link: https://lore.kernel.org/all/20220719143550.3681-7-mailhol.vincent@wanadoo.fr
CC: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Vincent Mailhol 2022-07-19 23:35:44 +09:00 committed by Greg Kroah-Hartman
parent f3d865a6b7
commit d159bb5c27
1 changed files with 4 additions and 5 deletions
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9
drivers/net/can/sun4i_can.c
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@ -535,11 +535,6 @@ static int sun4i_can_err(struct net_device *dev, u8 isrc, u8 status)
rxerr = (errc >> 16) & 0xFF;
txerr = errc & 0xFF;
if (skb) {
cf->data[6] = txerr;
cf->data[7] = rxerr;
}
if (isrc & SUN4I_INT_DATA_OR) {
/* data overrun interrupt */
netdev_dbg(dev, "data overrun interrupt\n");
@ -570,6 +565,10 @@ static int sun4i_can_err(struct net_device *dev, u8 isrc, u8 status)
else
state = CAN_STATE_ERROR_ACTIVE;
}
if (skb && state != CAN_STATE_BUS_OFF) {
cf->data[6] = txerr;
cf->data[7] = rxerr;
}
if (isrc & SUN4I_INT_BUS_ERR) {
/* bus error interrupt */
netdev_dbg(dev, "bus error interrupt\n");