From 7ee330c7b3b738847bf297912b371bbcec3bc994 Mon Sep 17 00:00:00 2001 From: Holger Bechtold Date: Mon, 25 Nov 2013 15:48:19 +0100 Subject: [PATCH] can: c_can: fix calculation of transmitted bytes on tx complete The number of bytes transmitted was not updated correctly, if several CAN messages (with different length) were transmitted in one 'bunch'. Thus programs like 'ifconfig' showed wrong transmit byte counts. Reason was, that the message object whose DLC is to be read was not necessarily the active one at the time when priv->read_reg(priv, C_CAN_IFACE(MSGCTRL_REG, 0)) & IF_MCONT_DLC_MASK; was executed. Signed-off-by: Holger Bechtold Signed-off-by: Marc Kleine-Budde --- drivers/net/can/c_can/c_can.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c index e59c42b446a9..77061eebb034 100644 --- a/drivers/net/can/c_can/c_can.c +++ b/drivers/net/can/c_can/c_can.c @@ -763,6 +763,7 @@ static void c_can_do_tx(struct net_device *dev) if (!(val & (1 << (msg_obj_no - 1)))) { can_get_echo_skb(dev, msg_obj_no - C_CAN_MSG_OBJ_TX_FIRST); + c_can_object_get(dev, 0, msg_obj_no, IF_COMM_ALL); stats->tx_bytes += priv->read_reg(priv, C_CAN_IFACE(MSGCTRL_REG, 0)) & IF_MCONT_DLC_MASK; -- 2.39.5