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path: root/drivers/net/can/usb/mcba_usb.c
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-rw-r--r--drivers/net/can/usb/mcba_usb.c23
1 files changed, 10 insertions, 13 deletions
diff --git a/drivers/net/can/usb/mcba_usb.c b/drivers/net/can/usb/mcba_usb.c
index a1a154c08b7f..77bddff86252 100644
--- a/drivers/net/can/usb/mcba_usb.c
+++ b/drivers/net/can/usb/mcba_usb.c
@@ -64,7 +64,6 @@
struct mcba_usb_ctx {
struct mcba_priv *priv;
u32 ndx;
- u8 dlc;
bool can;
};
@@ -184,13 +183,10 @@ static inline struct mcba_usb_ctx *mcba_usb_get_free_ctx(struct mcba_priv *priv,
ctx = &priv->tx_context[i];
ctx->ndx = i;
- if (cf) {
+ if (cf)
ctx->can = true;
- ctx->dlc = cf->len;
- } else {
+ else
ctx->can = false;
- ctx->dlc = 0;
- }
atomic_dec(&priv->free_ctx_cnt);
break;
@@ -236,10 +232,10 @@ static void mcba_usb_write_bulk_callback(struct urb *urb)
return;
netdev->stats.tx_packets++;
- netdev->stats.tx_bytes += ctx->dlc;
+ netdev->stats.tx_bytes += can_get_echo_skb(netdev, ctx->ndx,
+ NULL);
can_led_event(netdev, CAN_LED_EVENT_TX);
- can_get_echo_skb(netdev, ctx->ndx, NULL);
}
if (urb->status)
@@ -450,15 +446,16 @@ static void mcba_usb_process_can(struct mcba_priv *priv,
cf->can_id = (sid & 0xffe0) >> 5;
}
- if (msg->dlc & MCBA_DLC_RTR_MASK)
- cf->can_id |= CAN_RTR_FLAG;
-
cf->len = can_cc_dlc2len(msg->dlc & MCBA_DLC_MASK);
- memcpy(cf->data, msg->data, cf->len);
+ if (msg->dlc & MCBA_DLC_RTR_MASK) {
+ cf->can_id |= CAN_RTR_FLAG;
+ } else {
+ memcpy(cf->data, msg->data, cf->len);
+ stats->rx_bytes += cf->len;
+ }
stats->rx_packets++;
- stats->rx_bytes += cf->len;
can_led_event(priv->netdev, CAN_LED_EVENT_RX);
netif_rx(skb);