powerpc: Drop archdata numa_node

Use the struct device's numa_node instead; use accessor functions
to get/set numa_node.

Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/arch/powerpc/kernel/dma-iommu.c b/arch/powerpc/kernel/dma-iommu.c
index 01091f1..49248f8 100644
--- a/arch/powerpc/kernel/dma-iommu.c
+++ b/arch/powerpc/kernel/dma-iommu.c
@@ -20,7 +20,7 @@
 {
 	return iommu_alloc_coherent(dev, dev->archdata.dma_data, size,
 				    dma_handle, device_to_mask(dev), flag,
-				    dev->archdata.numa_node);
+				    dev_to_node(dev));
 }
 
 static void dma_iommu_free_coherent(struct device *dev, size_t size,
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index 44e3486..124f867 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -29,7 +29,7 @@
 {
 	struct page *page;
 	void *ret;
-	int node = dev->archdata.numa_node;
+	int node = dev_to_node(dev);
 
 	page = alloc_pages_node(node, flag, get_order(size));
 	if (page == NULL)
diff --git a/arch/powerpc/kernel/of_device.c b/arch/powerpc/kernel/of_device.c
index e9be908..93ae5b1 100644
--- a/arch/powerpc/kernel/of_device.c
+++ b/arch/powerpc/kernel/of_device.c
@@ -78,7 +78,7 @@
 	dev->dev.parent = parent;
 	dev->dev.release = of_release_dev;
 	dev->dev.archdata.of_node = np;
-	dev->dev.archdata.numa_node = of_node_to_nid(np);
+	set_dev_node(&dev->dev, of_node_to_nid(np));
 
 	if (bus_id)
 		strlcpy(dev->dev.bus_id, bus_id, BUS_ID_SIZE);
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index 30eedfc..1f75bf0 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -558,11 +558,8 @@
 	    sd->of_node ? sd->of_node->full_name : "<none>");
 
 	sd->dma_ops = pci_dma_ops;
-#ifdef CONFIG_NUMA
-	sd->numa_node = pcibus_to_node(dev->bus);
-#else
-	sd->numa_node = -1;
-#endif
+	set_dev_node(&dev->dev, pcibus_to_node(dev->bus));
+
 	if (ppc_md.pci_dma_dev_setup)
 		ppc_md.pci_dma_dev_setup(dev);
 }
diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index 2750fba..434c92a 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -1232,7 +1232,7 @@
 	else
 		viodev->dev.archdata.dma_ops = &dma_iommu_ops;
 	viodev->dev.archdata.dma_data = vio_build_iommu_table(viodev);
-	viodev->dev.archdata.numa_node = of_node_to_nid(of_node);
+	set_dev_node(&viodev->dev, of_node_to_nid(of_node));
 
 	/* init generic 'struct device' fields: */
 	viodev->dev.parent = &vio_bus_device.dev;