ravb: Remove rx buffer ALIGN
authorKazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
Sun, 1 May 2016 15:19:51 +0000 (00:19 +0900)
committerDavid S. Miller <davem@davemloft.net>
Tue, 3 May 2016 16:45:13 +0000 (12:45 -0400)
Aligning the reception data size is not required.

Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Tested-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/renesas/ravb_main.c

index 238b56f..34066e0 100644 (file)
@@ -246,10 +246,9 @@ static void ravb_ring_format(struct net_device *ndev, int q)
        for (i = 0; i < priv->num_rx_ring[q]; i++) {
                /* RX descriptor */
                rx_desc = &priv->rx_ring[q][i];
-               /* The size of the buffer should be on 16-byte boundary. */
-               rx_desc->ds_cc = cpu_to_le16(ALIGN(PKT_BUF_SZ, 16));
+               rx_desc->ds_cc = cpu_to_le16(PKT_BUF_SZ);
                dma_addr = dma_map_single(ndev->dev.parent, priv->rx_skb[q][i]->data,
-                                         ALIGN(PKT_BUF_SZ, 16),
+                                         PKT_BUF_SZ,
                                          DMA_FROM_DEVICE);
                /* We just set the data size to 0 for a failed mapping which
                 * should prevent DMA from happening...
@@ -558,7 +557,7 @@ static bool ravb_rx(struct net_device *ndev, int *quota, int q)
                        skb = priv->rx_skb[q][entry];
                        priv->rx_skb[q][entry] = NULL;
                        dma_unmap_single(ndev->dev.parent, le32_to_cpu(desc->dptr),
-                                        ALIGN(PKT_BUF_SZ, 16),
+                                        PKT_BUF_SZ,
                                         DMA_FROM_DEVICE);
                        get_ts &= (q == RAVB_NC) ?
                                        RAVB_RXTSTAMP_TYPE_V2_L2_EVENT :
@@ -588,8 +587,7 @@ static bool ravb_rx(struct net_device *ndev, int *quota, int q)
        for (; priv->cur_rx[q] - priv->dirty_rx[q] > 0; priv->dirty_rx[q]++) {
                entry = priv->dirty_rx[q] % priv->num_rx_ring[q];
                desc = &priv->rx_ring[q][entry];
-               /* The size of the buffer should be on 16-byte boundary. */
-               desc->ds_cc = cpu_to_le16(ALIGN(PKT_BUF_SZ, 16));
+               desc->ds_cc = cpu_to_le16(PKT_BUF_SZ);
 
                if (!priv->rx_skb[q][entry]) {
                        skb = netdev_alloc_skb(ndev,