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tg3: Remove tp->rx_offset term when unneeded 

This patch removes the tp->rx_offset term if NET_IP_ALIGN is defined to
zero.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Matt Carlson 2011-08-31 11:44:49 +00:00 committed by David S. Miller
parent 7f23073515
commit 81389f5715
1 changed files with 8 additions and 2 deletions
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10
drivers/net/ethernet/broadcom/tg3.c
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@ -187,6 +187,12 @@ static inline void _tg3_flag_clear(enum TG3_FLAGS flag, unsigned long *bits)
#define TG3_RX_COPY_THRESH(tp) ((tp)->rx_copy_thresh)
#endif
#if (NET_IP_ALIGN != 0)
#define TG3_RX_OFFSET(tp) ((tp)->rx_offset)
#else
#define TG3_RX_OFFSET(tp) 0
#endif
/* minimum number of free TX descriptors required to wake up TX process */
#define TG3_TX_WAKEUP_THRESH(tnapi) ((tnapi)->tx_pending / 4)
#define TG3_TX_BD_DMA_MAX 4096
@ -4984,11 +4990,11 @@ static int tg3_alloc_rx_skb(struct tg3 *tp, struct tg3_rx_prodring_set *tpr,
* Callers depend upon this behavior and assume that
* we leave everything unchanged if we fail.
*/
skb = netdev_alloc_skb(tp->dev, skb_size + tp->rx_offset);
skb = netdev_alloc_skb(tp->dev, skb_size + TG3_RX_OFFSET(tp));
if (skb == NULL)
return -ENOMEM;
skb_reserve(skb, tp->rx_offset);
skb_reserve(skb, TG3_RX_OFFSET(tp));
mapping = pci_map_single(tp->pdev, skb->data, skb_size,
PCI_DMA_FROMDEVICE);