int lst_size, lst_per_page;
        struct net_device *dev = nic->dev;
 #ifdef CONFIG_2BUFF_MODE
-       u64 tmp;
+       unsigned long tmp;
        buffAdd_t *ba;
 #endif
 
                                    (BUF0_LEN + ALIGN_SIZE, GFP_KERNEL);
                                if (!ba->ba_0_org)
                                        return -ENOMEM;
-                               tmp = (u64) ba->ba_0_org;
+                               tmp = (unsigned long) ba->ba_0_org;
                                tmp += ALIGN_SIZE;
-                               tmp &= ~((u64) ALIGN_SIZE);
+                               tmp &= ~((unsigned long) ALIGN_SIZE);
                                ba->ba_0 = (void *) tmp;
 
                                ba->ba_1_org = (void *) kmalloc
                                    (BUF1_LEN + ALIGN_SIZE, GFP_KERNEL);
                                if (!ba->ba_1_org)
                                        return -ENOMEM;
-                               tmp = (u64) ba->ba_1_org;
+                               tmp = (unsigned long) ba->ba_1_org;
                                tmp += ALIGN_SIZE;
-                               tmp &= ~((u64) ALIGN_SIZE);
+                               tmp &= ~((unsigned long) ALIGN_SIZE);
                                ba->ba_1 = (void *) tmp;
                                k++;
                        }