diff options
| author | Lennert Buytenhek <buytenh@marvell.com> | 2008-11-20 14:59:04 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-11-20 14:59:04 +0300 |
| commit | 537715226408b83c36b0688a1fb718f572d4dbe6 (patch) | |
| tree | 0b37f0b428f0ac87186e5d9763478ce55005b5b2 /drivers/net/mv643xx_eth.c | |
| parent | f61e5547763338b793ed291f3de3130216d00430 (diff) | |
| download | linux-537715226408b83c36b0688a1fb718f572d4dbe6.tar.xz | |
mv643xx_eth: calculate descriptor pointer only once in rxq_refill()
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/mv643xx_eth.c')
| -rw-r--r-- | drivers/net/mv643xx_eth.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c index d56724add175..b56fdf0dc875 100644 --- a/drivers/net/mv643xx_eth.c +++ b/drivers/net/mv643xx_eth.c @@ -593,6 +593,7 @@ static int rxq_refill(struct rx_queue *rxq, int budget) struct sk_buff *skb; int unaligned; int rx; + struct rx_desc *rx_desc; skb = __skb_dequeue(&mp->rx_recycle); if (skb == NULL) @@ -615,13 +616,14 @@ static int rxq_refill(struct rx_queue *rxq, int budget) if (rxq->rx_used_desc == rxq->rx_ring_size) rxq->rx_used_desc = 0; - rxq->rx_desc_area[rx].buf_ptr = dma_map_single(NULL, skb->data, - mp->skb_size, DMA_FROM_DEVICE); - rxq->rx_desc_area[rx].buf_size = mp->skb_size; + rx_desc = rxq->rx_desc_area + rx; + + rx_desc->buf_ptr = dma_map_single(NULL, skb->data, + mp->skb_size, DMA_FROM_DEVICE); + rx_desc->buf_size = mp->skb_size; rxq->rx_skb[rx] = skb; wmb(); - rxq->rx_desc_area[rx].cmd_sts = BUFFER_OWNED_BY_DMA | - RX_ENABLE_INTERRUPT; + rx_desc->cmd_sts = BUFFER_OWNED_BY_DMA | RX_ENABLE_INTERRUPT; wmb(); /* |