atl1e: fix 2.6.31-git4 -- ATL1E 0000:03:00.0: DMA-API: device driver frees DMA

use the wrong API when free dma. So when map dma use a flag to
demostrate whether it is 'pci_map_single' or 'pci_map_page'. When free
the dma, check the flags to select the right APIs('pci_unmap_single'
or 'pci_unmap_page').

set the flags type to u16  instead of unsigned long  on David's comments.

Signed-off-by: Jie Yang <jie.yang@atheros.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/net/atl1e/atl1e.h b/drivers/net/atl1e/atl1e.h
index ba48220df16a..490d3b38e0cb 100644
--- a/drivers/net/atl1e/atl1e.h
+++ b/drivers/net/atl1e/atl1e.h
@@ -377,10 +377,19 @@ struct atl1e_hw {
  */
 struct atl1e_tx_buffer {
         struct sk_buff *skb;
+        u16 flags;
+#define ATL1E_TX_PCIMAP_SINGLE          0x0001
+#define ATL1E_TX_PCIMAP_PAGE            0x0002
+#define ATL1E_TX_PCIMAP_TYPE_MASK       0x0003
         u16 length;
         dma_addr_t dma;
 };
 
+#define ATL1E_SET_PCIMAP_TYPE(tx_buff, type) do {               \
+        ((tx_buff)->flags) &= ~ATL1E_TX_PCIMAP_TYPE_MASK;       \
+        ((tx_buff)->flags) |= (type);                           \
+        } while (0)
+
 struct atl1e_rx_page {
         dma_addr_t      dma;    /* receive rage DMA address */
         u8              *addr;   /* receive rage virtual address */