target/linux/brcm47xx/patches-2.6.25/212-b44_alignment_fix.patch

   1 --- a/drivers/net/b44.c
   2 +++ b/drivers/net/b44.c
   3 @@ -73,8 +73,8 @@
   4           (BP)->tx_cons - (BP)->tx_prod - TX_RING_GAP(BP))
   5  #define NEXT_TX(N)             (((N) + 1) & (B44_TX_RING_SIZE - 1))
   6
   7 -#define RX_PKT_OFFSET          30
   8 -#define RX_PKT_BUF_SZ          (1536 + RX_PKT_OFFSET + 64)
   9 +#define RX_PKT_OFFSET          (RX_HEADER_LEN + 2)
  10 +#define RX_PKT_BUF_SZ          (1536 + RX_PKT_OFFSET)
  11
  12  /* minimum number of free TX descriptors required to wake up TX process */
  13  #define B44_TX_WAKEUP_THRESH           (B44_TX_RING_SIZE / 4)
  14 @@ -682,7 +682,6 @@ static int b44_alloc_rx_skb(struct b44 *
  15         }
  16
  17         rh = (struct rx_header *) skb->data;
  18 -       skb_reserve(skb, RX_PKT_OFFSET);
  19
  20         rh->len = 0;
  21         rh->flags = 0;
  22 @@ -693,13 +692,13 @@ static int b44_alloc_rx_skb(struct b44 *
  23         if (src_map != NULL)
  24                 src_map->skb = NULL;
  25
  26 -       ctrl  = (DESC_CTRL_LEN & (RX_PKT_BUF_SZ - RX_PKT_OFFSET));
  27 +       ctrl = (DESC_CTRL_LEN & RX_PKT_BUF_SZ);
  28         if (dest_idx == (B44_RX_RING_SIZE - 1))
  29                 ctrl |= DESC_CTRL_EOT;
  30
  31         dp = &bp->rx_ring[dest_idx];
  32         dp->ctrl = cpu_to_le32(ctrl);
  33 -       dp->addr = cpu_to_le32((u32) mapping + RX_PKT_OFFSET + bp->dma_offset);
  34 +       dp->addr = cpu_to_le32((u32) mapping + bp->dma_offset);
  35
  36         if (bp->flags & B44_FLAG_RX_RING_HACK)
  37                 b44_sync_dma_desc_for_device(bp->sdev, bp->rx_ring_dma,
  38 @@ -809,8 +808,8 @@ static int b44_rx(struct b44 *bp, int bu
  39                         dma_unmap_single(bp->sdev->dma_dev, map,
  40                                          skb_size, DMA_FROM_DEVICE);
  41                         /* Leave out rx_header */
  42 -                       skb_put(skb, len + RX_PKT_OFFSET);
  43 -                       skb_pull(skb, RX_PKT_OFFSET);
  44 +                       skb_put(skb, len + RX_PKT_OFFSET);
  45 +                       skb_pull(skb, RX_PKT_OFFSET);
  46                 } else {
  47                         struct sk_buff *copy_skb;
  48