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authorVincent Mailhol <mailhol.vincent@wanadoo.fr>2022-07-19 16:35:49 +0200
committerMarc Kleine-Budde <mkl@pengutronix.de>2022-07-20 09:27:37 +0200
commit3e5c291c7942d0909a48bc5ec1b9bba136465166 (patch)
tree4b20cdd0fac2827c886243ecb1a897638e879f67 /drivers/net/can/ti_hecc.c
parentcan: error: specify the values of data[5..7] of CAN error frames (diff)
downloadlinux-3e5c291c7942d0909a48bc5ec1b9bba136465166.tar.xz
linux-3e5c291c7942d0909a48bc5ec1b9bba136465166.zip
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/ti_hecc.c')
-rw-r--r--drivers/net/can/ti_hecc.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c
index debe17bfd0f0..afa38771520e 100644
--- a/drivers/net/can/ti_hecc.c
+++ b/drivers/net/can/ti_hecc.c
@@ -662,6 +662,7 @@ static void ti_hecc_change_state(struct net_device *ndev,
can_change_state(priv->ndev, cf, tx_state, rx_state);
if (max(tx_state, rx_state) != CAN_STATE_BUS_OFF) {
+ cf->can_id |= CAN_ERR_CNT;
cf->data[6] = hecc_read(priv, HECC_CANTEC);
cf->data[7] = hecc_read(priv, HECC_CANREC);
}