From 3e5c291c7942d0909a48bc5ec1b9bba136465166 Mon Sep 17 00:00:00 2001 From: Vincent Mailhol Date: Tue, 19 Jul 2022 23:35:49 +0900 Subject: can: add CAN_ERR_CNT flag to notify availability of error counter Add a dedicated flag in uapi/linux/can/error.h to notify the userland that fields data[6] and data[7] of the CAN error frame were respectively populated with the tx and rx error counters. For all driver tree-wide, set up this flags whenever needed. Link: https://lore.kernel.org/all/20220719143550.3681-12-mailhol.vincent@wanadoo.fr Signed-off-by: Vincent Mailhol Signed-off-by: Marc Kleine-Budde --- drivers/net/can/xilinx_can.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/net/can/xilinx_can.c') diff --git a/drivers/net/can/xilinx_can.c b/drivers/net/can/xilinx_can.c index 0de2f97d9f62..caa6b4cee63f 100644 --- a/drivers/net/can/xilinx_can.c +++ b/drivers/net/can/xilinx_can.c @@ -965,6 +965,7 @@ static void xcan_set_error_state(struct net_device *ndev, can_change_state(ndev, cf, tx_state, rx_state); if (cf) { + cf->can_id |= CAN_ERR_CNT; cf->data[6] = txerr; cf->data[7] = rxerr; } -- cgit