[PATCH] ems_usb: Fix byte order issues on big endian machines

[Sebastian Haas <haas-zsNKPWJ8Pib6hrUXjxyGrA@public.gmane.org>]

CPC-USB is using a ARM7 core with little endian byte order. The "id" field
in can_msg needs byte order conversion from/to CPU byte order.

Signed-off-by: Sebastian Haas <haas-zsNKPWJ8Pib6hrUXjxyGrA@public.gmane.org>
---

 drivers/net/can/usb/ems_usb.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c
index 9012e0a..abdbd9c 100644
--- a/drivers/net/can/usb/ems_usb.c
+++ b/drivers/net/can/usb/ems_usb.c
@@ -319,7 +319,7 @@ static void ems_usb_rx_can_msg(struct ems_usb *dev, struct ems_cpc_msg *msg)
 
 	cf = (struct can_frame *)skb_put(skb, sizeof(struct can_frame));
 
-	cf->can_id = msg->msg.can_msg.id;
+	cf->can_id = le32_to_cpu(msg->msg.can_msg.id);
 	cf->can_dlc = min_t(u8, msg->msg.can_msg.length, 8);
 
 	if (msg->type == CPC_MSG_TYPE_EXT_CAN_FRAME
@@ -813,6 +813,9 @@ static netdev_tx_t ems_usb_start_xmit(struct sk_buff *skb, struct net_device *ne
 		msg->length = CPC_CAN_MSG_MIN_SIZE + cf->can_dlc;
 	}
 
+	/* Respect byte order */
+	msg->msg.can_msg.id = cpu_to_le32(msg->msg.can_msg.id);
+
 	for (i = 0; i < MAX_TX_URBS; i++) {
 		if (dev->tx_contexts[i].echo_index == MAX_TX_URBS) {
 			context = &dev->tx_contexts[i];

-- 
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