[RFC PATCH 6/6] can: dev: update the error types stats (ack, CRC, form, ...)

[Dario Binacchi <dario.binacchi@amarulasolutions.com>]

The patch modifies can_update_bus_error_stats() by also updating the
counters related to the types of CAN errors.

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>

---

 drivers/net/can/dev/dev.c | 25 ++++++++++++++++++++-----
 1 file changed, 20 insertions(+), 5 deletions(-)

diff --git a/drivers/net/can/dev/dev.c b/drivers/net/can/dev/dev.c
index 0a3b1aad405b..f035e68044b3 100644
--- a/drivers/net/can/dev/dev.c
+++ b/drivers/net/can/dev/dev.c
@@ -27,16 +27,31 @@ void can_update_bus_error_stats(struct net_device *dev, struct can_frame *cf)
 	priv = netdev_priv(dev);
 	priv->can_stats.bus_error++;
 
-	if ((cf->can_id & CAN_ERR_ACK) && cf->data[3] == CAN_ERR_PROT_LOC_ACK)
+	if ((cf->can_id & CAN_ERR_ACK) && cf->data[3] == CAN_ERR_PROT_LOC_ACK) {
+		priv->can_stats.ack_error++;
 		tx_errors = true;
-	else if (cf->data[2] & (CAN_ERR_PROT_BIT1 | CAN_ERR_PROT_BIT0))
+	}
+
+	if (cf->data[2] & (CAN_ERR_PROT_BIT1 | CAN_ERR_PROT_BIT0)) {
+		priv->can_stats.bit_error++;
 		tx_errors = true;
+	}
 
-	if (cf->data[2] & (CAN_ERR_PROT_FORM | CAN_ERR_PROT_STUFF))
+	if (cf->data[2] & CAN_ERR_PROT_FORM) {
+		priv->can_stats.form_error++;
 		rx_errors = true;
-	else if ((cf->data[2] & CAN_ERR_PROT_BIT) &&
-		 (cf->data[3] == CAN_ERR_PROT_LOC_CRC_SEQ))
+	}
+
+	if (cf->data[2] & CAN_ERR_PROT_STUFF) {
+		priv->can_stats.stuff_error++;
 		rx_errors = true;
+	}
+
+	if ((cf->data[2] & CAN_ERR_PROT_BIT) &&
+	    cf->data[3] == CAN_ERR_PROT_LOC_CRC_SEQ) {
+		priv->can_stats.crc_error++;
+		rx_errors = true;
+	}
 
 	if (rx_errors)
 		dev->stats.rx_errors++;
-- 
2.43.0