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path: root/drivers/net/can/xilinx_can.c
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Diffstat (limited to 'drivers/net/can/xilinx_can.c')
-rw-r--r--drivers/net/can/xilinx_can.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/net/can/xilinx_can.c b/drivers/net/can/xilinx_can.c
index 6bddfe062b51..fc55e8e0351d 100644
--- a/drivers/net/can/xilinx_can.c
+++ b/drivers/net/can/xilinx_can.c
@@ -509,10 +509,11 @@ static int xcan_rx(struct net_device *ndev)
509 cf->can_id |= CAN_RTR_FLAG; 509 cf->can_id |= CAN_RTR_FLAG;
510 } 510 }
511 511
512 if (!(id_xcan & XCAN_IDR_SRR_MASK)) { 512 /* DW1/DW2 must always be read to remove message from RXFIFO */
513 data[0] = priv->read_reg(priv, XCAN_RXFIFO_DW1_OFFSET); 513 data[0] = priv->read_reg(priv, XCAN_RXFIFO_DW1_OFFSET);
514 data[1] = priv->read_reg(priv, XCAN_RXFIFO_DW2_OFFSET); 514 data[1] = priv->read_reg(priv, XCAN_RXFIFO_DW2_OFFSET);
515 515
516 if (!(cf->can_id & CAN_RTR_FLAG)) {
516 /* Change Xilinx CAN data format to socketCAN data format */ 517 /* Change Xilinx CAN data format to socketCAN data format */
517 if (cf->can_dlc > 0) 518 if (cf->can_dlc > 0)
518 *(__be32 *)(cf->data) = cpu_to_be32(data[0]); 519 *(__be32 *)(cf->data) = cpu_to_be32(data[0]);