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authorStephen Hemminger <shemminger@linux-foundation.org>2007-07-09 15:33:42 -0700
committerJeff Garzik <jeff@garzik.org>2007-07-10 12:22:29 -0400
commit36eb0c71f3ab42b116a5a7bda733230014741632 (patch)
tree1400ac34622be00d035634bd1495523e507ce14d /drivers/net/sky2.c
parentf957da2aa0b7ef9659a45b0895ec4a08602b1c15 (diff)
downloadop-kernel-dev-36eb0c71f3ab42b116a5a7bda733230014741632.zip
op-kernel-dev-36eb0c71f3ab42b116a5a7bda733230014741632.tar.gz
sky2: use upper_32_bits() macro
Use upper_32_bits() inline Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/sky2.c')
-rw-r--r--drivers/net/sky2.c19
1 files changed, 7 insertions, 12 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 8cc3eea..151d835 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -893,24 +893,18 @@ static inline struct sky2_rx_le *sky2_next_rx(struct sky2_port *sky2)
return le;
}
-/* Return high part of DMA address (could be 32 or 64 bit) */
-static inline u32 high32(dma_addr_t a)
-{
- return sizeof(a) > sizeof(u32) ? (a >> 16) >> 16 : 0;
-}
-
/* Build description to hardware for one receive segment */
static void sky2_rx_add(struct sky2_port *sky2, u8 op,
dma_addr_t map, unsigned len)
{
struct sky2_rx_le *le;
- u32 hi = high32(map);
+ u32 hi = upper_32_bits(map);
if (sky2->rx_addr64 != hi) {
le = sky2_next_rx(sky2);
le->addr = cpu_to_le32(hi);
le->opcode = OP_ADDR64 | HW_OWNER;
- sky2->rx_addr64 = high32(map + len);
+ sky2->rx_addr64 = upper_32_bits(map + len);
}
le = sky2_next_rx(sky2);
@@ -1424,14 +1418,15 @@ static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev)
len = skb_headlen(skb);
mapping = pci_map_single(hw->pdev, skb->data, len, PCI_DMA_TODEVICE);
- addr64 = high32(mapping);
+ addr64 = upper_32_bits(mapping);
/* Send high bits if changed or crosses boundary */
- if (addr64 != sky2->tx_addr64 || high32(mapping + len) != sky2->tx_addr64) {
+ if (addr64 != sky2->tx_addr64 ||
+ upper_32_bits(mapping + len) != sky2->tx_addr64) {
le = get_tx_le(sky2);
le->addr = cpu_to_le32(addr64);
le->opcode = OP_ADDR64 | HW_OWNER;
- sky2->tx_addr64 = high32(mapping + len);
+ sky2->tx_addr64 = upper_32_bits(mapping + len);
}
/* Check for TCP Segmentation Offload */
@@ -1511,7 +1506,7 @@ static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev)
mapping = pci_map_page(hw->pdev, frag->page, frag->page_offset,
frag->size, PCI_DMA_TODEVICE);
- addr64 = high32(mapping);
+ addr64 = upper_32_bits(mapping);
if (addr64 != sky2->tx_addr64) {
le = get_tx_le(sky2);
le->addr = cpu_to_le32(addr64);
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