drivers/net/: Use the DMA_{64,32}BIT_MASK constants

Use the DMA_{64,32}BIT_MASK constants from dma-mapping.h when calling
pci_set_dma_mask() or pci_set_consistent_dma_mask()

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>
Signed-off-by: Domen Puncer <domen@coderock.org>
diff --git a/drivers/net/via-rhine.c b/drivers/net/via-rhine.c
index 7b57d55..6200cfc 100644
--- a/drivers/net/via-rhine.c
+++ b/drivers/net/via-rhine.c
@@ -186,6 +186,7 @@
 #include <linux/slab.h>
 #include <linux/interrupt.h>
 #include <linux/pci.h>
+#include <linux/dma-mapping.h>
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
 #include <linux/skbuff.h>
@@ -740,7 +741,7 @@
 		goto err_out;
 
 	/* this should always be supported */
-	rc = pci_set_dma_mask(pdev, 0xffffffff);
+	rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
 	if (rc) {
 		printk(KERN_ERR "32-bit PCI DMA addresses not supported by "
 		       "the card!?\n");