of: eliminate of_device->node and dev_archdata->{of,prom}_node

This patch eliminates the node pointer from struct of_device and the
of_node (or prom_node) pointer from struct dev_archdata since the node
pointer is now part of struct device proper when CONFIG_OF is set, and
all users of the old pointer locations have already been converted over
to use device->of_node.

Also remove dev_archdata_{get,set}_node() as it is no longer used by
anything.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

1 files changed, 8 insertions, 9 deletions

diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index d6708da114ee..4cdd0f6df8bf 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -705,7 +705,7 @@ static int vio_cmo_bus_probe(struct vio_dev *viodev)
          * Check to see that device has a DMA window and configure
          * entitlement for the device.
          */
-        if (of_get_property(viodev->dev.archdata.of_node,
+        if (of_get_property(viodev->dev.of_node,
                             "ibm,my-dma-window", NULL)) {
                 /* Check that the driver is CMO enabled and get desired DMA */
                 if (!viodrv->get_desired_dma) {
@@ -1049,7 +1049,7 @@ static struct iommu_table *vio_build_iommu_table(struct vio_dev *dev)
         if (firmware_has_feature(FW_FEATURE_ISERIES))
                 return vio_build_iommu_table_iseries(dev);
 
-        dma_window = of_get_property(dev->dev.archdata.of_node,
+        dma_window = of_get_property(dev->dev.of_node,
                                   "ibm,my-dma-window", NULL);
         if (!dma_window)
                 return NULL;
@@ -1058,7 +1058,7 @@ static struct iommu_table *vio_build_iommu_table(struct vio_dev *dev)
         if (tbl == NULL)
                 return NULL;
 
-        of_parse_dma_window(dev->dev.archdata.of_node, dma_window,
+        of_parse_dma_window(dev->dev.of_node, dma_window,
                             &tbl->it_index, &offset, &size);
 
         /* TCE table size - measured in tce entries */
@@ -1086,7 +1086,7 @@ static const struct vio_device_id *vio_match_device(
 {
         while (ids->type[0] != '\0') {
                 if ((strncmp(dev->type, ids->type, strlen(ids->type)) == 0) &&
-                    of_device_is_compatible(dev->dev.archdata.of_node,
+                    of_device_is_compatible(dev->dev.of_node,
                                          ids->compat))
                         return ids;
                 ids++;
@@ -1179,7 +1179,7 @@ EXPORT_SYMBOL(vio_unregister_driver);
 static void __devinit vio_dev_release(struct device *dev)
 {
         /* XXX should free TCE table */
-        of_node_put(dev->archdata.of_node);
+        of_node_put(dev->of_node);
         kfree(to_vio_dev(dev));
 }
 
@@ -1231,7 +1231,6 @@ struct vio_dev *vio_register_device_node(struct device_node *of_node)
                         viodev->unit_address = *unit_address;
         }
         viodev->dev.of_node = of_node_get(of_node);
-        viodev->dev.archdata.of_node = viodev->dev.of_node;
 
         if (firmware_has_feature(FW_FEATURE_CMO))
                 vio_cmo_set_dma_ops(viodev);
@@ -1316,7 +1315,7 @@ static ssize_t name_show(struct device *dev,
 static ssize_t devspec_show(struct device *dev,
                 struct device_attribute *attr, char *buf)
 {
-        struct device_node *of_node = dev->archdata.of_node;
+        struct device_node *of_node = dev->of_node;
 
         return sprintf(buf, "%s\n", of_node ? of_node->full_name : "none");
 }
@@ -1348,7 +1347,7 @@ static int vio_hotplug(struct device *dev, struct kobj_uevent_env *env)
         struct device_node *dn;
         const char *cp;
 
-        dn = dev->archdata.of_node;
+        dn = dev->of_node;
         if (!dn)
                 return -ENODEV;
         cp = of_get_property(dn, "compatible", NULL);
@@ -1379,7 +1378,7 @@ static struct bus_type vio_bus_type = {
 */
 const void *vio_get_attribute(struct vio_dev *vdev, char *which, int *length)
 {
-        return of_get_property(vdev->dev.archdata.of_node, which, length);
+        return of_get_property(vdev->dev.of_node, which, length);
 }
 EXPORT_SYMBOL(vio_get_attribute);