diff options
| author | Geliang Tang <geliangtang@gmail.com> | 2017-04-22 04:21:10 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-04-24 20:58:01 +0300 |
| commit | 4cc17bcf7f39088b5b68e3689f1653184c7e7ad4 (patch) | |
| tree | 037d72a2be8ee139744322ddb5bd8d45de0e3faa | |
| parent | 4dd42b94b4d25c0f99ee9ba0748dd315653b6a34 (diff) | |
| download | linux-4cc17bcf7f39088b5b68e3689f1653184c7e7ad4.tar.xz | |
net: atheros: atl1: use offset_in_page() macro
Use offset_in_page() macro instead of open-coding.
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/atheros/atlx/atl1.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/net/ethernet/atheros/atlx/atl1.c b/drivers/net/ethernet/atheros/atlx/atl1.c index 022772e1e249..83d2db2abb45 100644 --- a/drivers/net/ethernet/atheros/atlx/atl1.c +++ b/drivers/net/ethernet/atheros/atlx/atl1.c @@ -1886,7 +1886,7 @@ static u16 atl1_alloc_rx_buffers(struct atl1_adapter *adapter) buffer_info->skb = skb; buffer_info->length = (u16) adapter->rx_buffer_len; page = virt_to_page(skb->data); - offset = (unsigned long)skb->data & ~PAGE_MASK; + offset = offset_in_page(skb->data); buffer_info->dma = pci_map_page(pdev, page, offset, adapter->rx_buffer_len, PCI_DMA_FROMDEVICE); @@ -2230,7 +2230,7 @@ static void atl1_tx_map(struct atl1_adapter *adapter, struct sk_buff *skb, hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); buffer_info->length = hdr_len; page = virt_to_page(skb->data); - offset = (unsigned long)skb->data & ~PAGE_MASK; + offset = offset_in_page(skb->data); buffer_info->dma = pci_map_page(adapter->pdev, page, offset, hdr_len, PCI_DMA_TODEVICE); @@ -2254,9 +2254,8 @@ static void atl1_tx_map(struct atl1_adapter *adapter, struct sk_buff *skb, data_len -= buffer_info->length; page = virt_to_page(skb->data + (hdr_len + i * ATL1_MAX_TX_BUF_LEN)); - offset = (unsigned long)(skb->data + - (hdr_len + i * ATL1_MAX_TX_BUF_LEN)) & - ~PAGE_MASK; + offset = offset_in_page(skb->data + + (hdr_len + i * ATL1_MAX_TX_BUF_LEN)); buffer_info->dma = pci_map_page(adapter->pdev, page, offset, buffer_info->length, PCI_DMA_TODEVICE); @@ -2268,7 +2267,7 @@ static void atl1_tx_map(struct atl1_adapter *adapter, struct sk_buff *skb, /* not TSO */ buffer_info->length = buf_len; page = virt_to_page(skb->data); - offset = (unsigned long)skb->data & ~PAGE_MASK; + offset = offset_in_page(skb->data); buffer_info->dma = pci_map_page(adapter->pdev, page, offset, buf_len, PCI_DMA_TODEVICE); if (++next_to_use == tpd_ring->count) |