[PATCH] net/sis900: Use the DMA_32BIT_MASK constant

Use the DMA_32BIT_MASK constant from dma-mapping.h when calling
pci_set_dma_mask() or pci_set_consistent_dma_mask() instead of custom
macros.
This patch includes dma-mapping.h explicitly because it caused errors
on some architectures otherwise.
See http://marc.theaimsgroup.com/?t=108001993000001&r=1&w=2 for details
Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch>

drivers/net/sis900.c

@@ -66,6 +66,7 @@
 #include <linux/ethtool.h>
 #include <linux/crc32.h>
 #include <linux/bitops.h>
+#include <linux/dma-mapping.h>
 
 #include <asm/processor.h>      /* Processor type for cache alignment. */
 #include <asm/io.h>
@@ -93,8 +94,6 @@ static int sis900_debug = -1; /* Use SIS900_DEF_MSG as value */
 
 /* Time in jiffies before concluding the transmitter is hung. */
 #define TX_TIMEOUT  (4*HZ)
-/* SiS 900 is capable of 32 bits BM DMA */
-#define SIS900_DMA_MASK 0xffffffff
 
 enum {
 	SIS_900 = 0,
@@ -414,7 +413,7 @@ static int __devinit sis900_probe(struct pci_dev *pci_dev,
 	ret = pci_enable_device(pci_dev);
 	if(ret) return ret;
 	
-	i = pci_set_dma_mask(pci_dev, SIS900_DMA_MASK);
+	i = pci_set_dma_mask(pci_dev, DMA_32BIT_MASK);
 	if(i){
 		printk(KERN_ERR "sis900.c: architecture does not support"
 			"32bit PCI busmaster DMA\n");