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e1000: clean up skb allocation code 

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
This commit is contained in:
Christoph Hellwig 2006-08-31 14:27:47 -07:00 committed by Auke Kok
parent 5881cde8a3
commit ca6f722419
1 changed files with 6 additions and 11 deletions
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15
drivers/net/e1000/e1000_main.c
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@ -3741,7 +3741,6 @@ e1000_clean_rx_irq(struct e1000_adapter *adapter,
netdev_alloc_skb(netdev, length + NET_IP_ALIGN); netdev_alloc_skb(netdev, length + NET_IP_ALIGN);
if (new_skb) { if (new_skb) {
skb_reserve(new_skb, NET_IP_ALIGN); skb_reserve(new_skb, NET_IP_ALIGN);
new_skb->dev = netdev;
memcpy(new_skb->data - NET_IP_ALIGN, memcpy(new_skb->data - NET_IP_ALIGN,
skb->data - NET_IP_ALIGN, skb->data - NET_IP_ALIGN,
length + NET_IP_ALIGN); length + NET_IP_ALIGN);
@ -4008,13 +4007,13 @@ e1000_alloc_rx_buffers(struct e1000_adapter *adapter,
buffer_info = &rx_ring->buffer_info[i]; buffer_info = &rx_ring->buffer_info[i];
while (cleaned_count--) { while (cleaned_count--) {
if (!(skb = buffer_info->skb)) skb = buffer_info->skb;
skb = netdev_alloc_skb(netdev, bufsz); if (skb) {
else {
skb_trim(skb, 0); skb_trim(skb, 0);
goto map_skb; goto map_skb;
} }
skb = netdev_alloc_skb(netdev, bufsz);
if (unlikely(!skb)) { if (unlikely(!skb)) {
/* Better luck next round */ /* Better luck next round */
adapter->alloc_rx_buff_failed++; adapter->alloc_rx_buff_failed++;
@ -4039,19 +4038,17 @@ e1000_alloc_rx_buffers(struct e1000_adapter *adapter,
dev_kfree_skb(skb); dev_kfree_skb(skb);
dev_kfree_skb(oldskb); dev_kfree_skb(oldskb);
break; /* while !buffer_info->skb */ break; /* while !buffer_info->skb */
} else { }
/* Use new allocation */ /* Use new allocation */
dev_kfree_skb(oldskb); dev_kfree_skb(oldskb);
} }
}
/* Make buffer alignment 2 beyond a 16 byte boundary /* Make buffer alignment 2 beyond a 16 byte boundary
* this will result in a 16 byte aligned IP header after * this will result in a 16 byte aligned IP header after
* the 14 byte MAC header is removed * the 14 byte MAC header is removed
*/ */
skb_reserve(skb, NET_IP_ALIGN); skb_reserve(skb, NET_IP_ALIGN);
skb->dev = netdev;
buffer_info->skb = skb; buffer_info->skb = skb;
buffer_info->length = adapter->rx_buffer_len; buffer_info->length = adapter->rx_buffer_len;
map_skb: map_skb:
@ -4165,8 +4162,6 @@ e1000_alloc_rx_buffers_ps(struct e1000_adapter *adapter,
*/ */
skb_reserve(skb, NET_IP_ALIGN); skb_reserve(skb, NET_IP_ALIGN);
skb->dev = netdev;
buffer_info->skb = skb; buffer_info->skb = skb;
buffer_info->length = adapter->rx_ps_bsize0; buffer_info->length = adapter->rx_ps_bsize0;
buffer_info->dma = pci_map_single(pdev, skb->data, buffer_info->dma = pci_map_single(pdev, skb->data,