pci_unmap_sg(alpha_gendev_to_pci(dev), sg, nents, dir)
#define dma_supported(dev, mask) \
pci_dma_supported(alpha_gendev_to_pci(dev), mask)
+#define dma_mapping_error(addr) \
+ pci_dma_mapping_error(addr)
#else /* no PCI - no IOMMU. */
#define dma_unmap_page(dev, addr, size, dir) do { } while (0)
#define dma_unmap_sg(dev, sg, nents, dir) do { } while (0)
+#define dma_mapping_error(addr) (0)
+
#endif /* !CONFIG_PCI */
#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)