[PATCH] e100 - use NET_IP_ALIGN to set rx data buffer alignment

drivers/net/e100.c

@@ -1425,14 +1425,12 @@ static inline void e100_start_receiver(struct nic *nic)
 #define RFD_BUF_LEN (sizeof(struct rfd) + VLAN_ETH_FRAME_LEN)
 static inline int e100_rx_alloc_skb(struct nic *nic, struct rx *rx)
 {
-	unsigned int rx_offset = 2; /* u32 align protocol headers */
-
-	if(!(rx->skb = dev_alloc_skb(RFD_BUF_LEN + rx_offset)))
+	if(!(rx->skb = dev_alloc_skb(RFD_BUF_LEN + NET_IP_ALIGN)))
 		return -ENOMEM;
 
 	/* Align, init, and map the RFD. */
 	rx->skb->dev = nic->netdev;
-	skb_reserve(rx->skb, rx_offset);
+	skb_reserve(rx->skb, NET_IP_ALIGN);
 	memcpy(rx->skb->data, &nic->blank_rfd, sizeof(struct rfd));
 	rx->dma_addr = pci_map_single(nic->pdev, rx->skb->data,
 		RFD_BUF_LEN, PCI_DMA_BIDIRECTIONAL);