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From:   Frank Jungclaus <frank.jungclaus@esd.eu>
To:     linux-can@vger.kernel.org, Marc Kleine-Budde <mkl@pengutronix.de>,
        Wolfgang Grandegger <wg@grandegger.com>,
        Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Cc:     =?UTF-8?q?Stefan=20M=C3=A4tje?= <stefan.maetje@esd.eu>,
        netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
        Frank Jungclaus <frank.jungclaus@esd.eu>
Subject: [PATCH v2 1/3] can: esd_usb: Improved behavior on esd CAN_ERROR_EXT event (1)
Date:   Tue, 14 Feb 2023 17:02:21 +0100
Message-Id: <20230214160223.1199464-2-frank.jungclaus@esd.eu>
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Moved the supply for cf->data[3] (bit stream position of CAN error)
outside of the "switch (ecc & SJA1000_ECC_MASK){}"-statement, because
this position is independent of the error type.

Fixes: 96d8e90382dc ("can: Add driver for esd CAN-USB/2 device")
Signed-off-by: Frank Jungclaus <frank.jungclaus@esd.eu>
---
 drivers/net/can/usb/esd_usb.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/can/usb/esd_usb.c b/drivers/net/can/usb/esd_usb.c
index 42323f5e6f3a..5e182fadd875 100644
--- a/drivers/net/can/usb/esd_usb.c
+++ b/drivers/net/can/usb/esd_usb.c
@@ -286,7 +286,6 @@ static void esd_usb_rx_event(struct esd_usb_net_priv *priv,
 				cf->data[2] |= CAN_ERR_PROT_STUFF;
 				break;
 			default:
-				cf->data[3] = ecc & SJA1000_ECC_SEG;
 				break;
 			}
 
@@ -294,6 +293,9 @@ static void esd_usb_rx_event(struct esd_usb_net_priv *priv,
 			if (!(ecc & SJA1000_ECC_DIR))
 				cf->data[2] |= CAN_ERR_PROT_TX;
 
+			/* Bit stream position in CAN frame as the error was detected */
+			cf->data[3] = ecc & SJA1000_ECC_SEG;
+
 			if (priv->can.state == CAN_STATE_ERROR_WARNING ||
 			    priv->can.state == CAN_STATE_ERROR_PASSIVE) {
 				cf->data[1] = (txerr > rxerr) ?
-- 
2.25.1