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-rw-r--r--drivers/net/netxen/netxen_nic_main.c3
-rw-r--r--include/linux/dma-mapping.h24
2 files changed, 14 insertions, 13 deletions
diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c
index 2a1d6d7ec351..601051c584e8 100644
--- a/drivers/net/netxen/netxen_nic_main.c
+++ b/drivers/net/netxen/netxen_nic_main.c
@@ -53,9 +53,6 @@ static char netxen_nic_driver_string[] = "NetXen Network Driver version "
#define NETXEN_ADAPTER_UP_MAGIC 777
#define NETXEN_NIC_PEG_TUNE 0
-#define DMA_32BIT_MASK 0x00000000ffffffffULL
-#define DMA_35BIT_MASK 0x00000007ffffffffULL
-
/* Local functions to NetXen NIC driver */
static int __devinit netxen_nic_probe(struct pci_dev *pdev,
const struct pci_device_id *ent);
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 0ebfafbd338c..29b028597dcd 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -13,16 +13,20 @@ enum dma_data_direction {
DMA_NONE = 3,
};
-#define DMA_64BIT_MASK 0xffffffffffffffffULL
-#define DMA_48BIT_MASK 0x0000ffffffffffffULL
-#define DMA_40BIT_MASK 0x000000ffffffffffULL
-#define DMA_39BIT_MASK 0x0000007fffffffffULL
-#define DMA_32BIT_MASK 0x00000000ffffffffULL
-#define DMA_31BIT_MASK 0x000000007fffffffULL
-#define DMA_30BIT_MASK 0x000000003fffffffULL
-#define DMA_29BIT_MASK 0x000000001fffffffULL
-#define DMA_28BIT_MASK 0x000000000fffffffULL
-#define DMA_24BIT_MASK 0x0000000000ffffffULL
+#define DMA_BIT_MASK(n) ((1ULL<<(n))-1)
+
+#define DMA_64BIT_MASK (~0ULL)
+#define DMA_48BIT_MASK DMA_BIT_MASK(48)
+#define DMA_47BIT_MASK DMA_BIT_MASK(47)
+#define DMA_40BIT_MASK DMA_BIT_MASK(40)
+#define DMA_39BIT_MASK DMA_BIT_MASK(39)
+#define DMA_35BIT_MASK DMA_BIT_MASK(35)
+#define DMA_32BIT_MASK DMA_BIT_MASK(32)
+#define DMA_31BIT_MASK DMA_BIT_MASK(31)
+#define DMA_30BIT_MASK DMA_BIT_MASK(30)
+#define DMA_29BIT_MASK DMA_BIT_MASK(29)
+#define DMA_28BIT_MASK DMA_BIT_MASK(28)
+#define DMA_24BIT_MASK DMA_BIT_MASK(24)
#define DMA_MASK_NONE 0x0ULL