diff options
| author | Vincent Mailhol <mailhol.vincent@wanadoo.fr> | 2022-07-19 23:35:49 +0900 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2022-07-20 09:27:37 +0200 |
| commit | 3e5c291c7942d0909a48bc5ec1b9bba136465166 (patch) | |
| tree | 4b20cdd0fac2827c886243ecb1a897638e879f67 /drivers/net/can/c_can | |
| parent | e70a3263a7eed768d5f947b8f2aff8d2a79c9d97 (diff) | |
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 <mailhol.vincent@wanadoo.fr>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can/c_can')
| -rw-r--r-- | drivers/net/can/c_can/c_can_main.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/net/can/c_can/c_can_main.c b/drivers/net/can/c_can/c_can_main.c index ed4db4cf8716..de38d8f7b5f7 100644 --- a/drivers/net/can/c_can/c_can_main.c +++ b/drivers/net/can/c_can/c_can_main.c @@ -952,14 +952,14 @@ static int c_can_handle_state_change(struct net_device *dev, switch (error_type) { case C_CAN_NO_ERROR: - cf->can_id |= CAN_ERR_CRTL; + cf->can_id |= CAN_ERR_CRTL | CAN_ERR_CNT; cf->data[1] = CAN_ERR_CRTL_ACTIVE; cf->data[6] = bec.txerr; cf->data[7] = bec.rxerr; break; case C_CAN_ERROR_WARNING: /* error warning state */ - cf->can_id |= CAN_ERR_CRTL; + cf->can_id |= CAN_ERR_CRTL | CAN_ERR_CNT; cf->data[1] = (bec.txerr > bec.rxerr) ? CAN_ERR_CRTL_TX_WARNING : CAN_ERR_CRTL_RX_WARNING; @@ -969,7 +969,7 @@ static int c_can_handle_state_change(struct net_device *dev, break; case C_CAN_ERROR_PASSIVE: /* error passive state */ - cf->can_id |= CAN_ERR_CRTL; + cf->can_id |= CAN_ERR_CRTL | CAN_ERR_CNT; if (rx_err_passive) cf->data[1] |= CAN_ERR_CRTL_RX_PASSIVE; if (bec.txerr > 127) |