net: macb: Pass same size to DMA_UNMAP as used for DMA_MAP

Just as commit "net: macb: DMA-unmap full rx-buffer"
(48330e08fa168395b9fd9f369f06cca1df204361), pass the size that
was used for mapping the memory also to the unmap routine to
avoid warnings from the DMA_API.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c
index ca97005e24b4..18fdcd9d51b3 100644
--- a/drivers/net/ethernet/cadence/macb.c
+++ b/drivers/net/ethernet/cadence/macb.c
@@ -1113,7 +1113,7 @@ static void gem_free_rx_buffers(struct macb *bp)
 
                 desc = &bp->rx_ring[i];
                 addr = MACB_BF(RX_WADDR, MACB_BFEXT(RX_WADDR, desc->addr));
-                dma_unmap_single(&bp->pdev->dev, addr, skb->len,
+                dma_unmap_single(&bp->pdev->dev, addr, bp->rx_buffer_size,
                                  DMA_FROM_DEVICE);
                 dev_kfree_skb_any(skb);
                 skb = NULL;