diff --git a/drivers/net/acenic.c b/drivers/net/acenic.c
index 6eea3a8..dbecc6b 100644
--- a/drivers/net/acenic.c
+++ b/drivers/net/acenic.c
@@ -58,6 +58,7 @@
 #include <linux/errno.h>
 #include <linux/ioport.h>
 #include <linux/pci.h>
+#include <linux/dma-mapping.h>
 #include <linux/kernel.h>
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
@@ -1167,9 +1168,9 @@
 	/*
 	 * Configure DMA attributes.
 	 */
-	if (!pci_set_dma_mask(pdev, 0xffffffffffffffffULL)) {
+	if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) {
 		ap->pci_using_dac = 1;
-	} else if (!pci_set_dma_mask(pdev, 0xffffffffULL)) {
+	} else if (!pci_set_dma_mask(pdev, DMA_32BIT_MASK)) {
 		ap->pci_using_dac = 0;
 	} else {
 		ecode = -ENODEV;