Update from upstream with manual merge of Yasunori Goto's

changes to swiotlb.c made in commit 281dd25cdc0d6903929b79183816d151ea626341
since this file has been moved from arch/ia64/lib/swiotlb.c to
lib/swiotlb.c

Signed-off-by: Tony Luck <tony.luck@intel.com>

3 files changed, 18 insertions, 3 deletions

diff --git a/drivers/base/class.c b/drivers/base/class.c
index 3b112e3542f8..ce23dc8c18c5 100644
--- a/drivers/base/class.c
+++ b/drivers/base/class.c
@@ -669,6 +669,7 @@ void class_device_destroy(struct class *cls, dev_t devt)
 int class_device_rename(struct class_device *class_dev, char *new_name)
 {
 	int error = 0;
+	char *old_class_name = NULL, *new_class_name = NULL;
 
 	class_dev = class_device_get(class_dev);
 	if (!class_dev)
@@ -677,12 +678,24 @@ int class_device_rename(struct class_device *class_dev, char *new_name)
 	pr_debug("CLASS: renaming '%s' to '%s'\n", class_dev->class_id,
 		 new_name);
 
+	if (class_dev->dev)
+		old_class_name = make_class_name(class_dev);
+
 	strlcpy(class_dev->class_id, new_name, KOBJ_NAME_LEN);
 
 	error = kobject_rename(&class_dev->kobj, new_name);
 
+	if (class_dev->dev) {
+		new_class_name = make_class_name(class_dev);
+		sysfs_create_link(&class_dev->dev->kobj, &class_dev->kobj,
+				  new_class_name);
+		sysfs_remove_link(&class_dev->dev->kobj, old_class_name);
+	}
 	class_device_put(class_dev);
 
+	kfree(old_class_name);
+	kfree(new_class_name);
+
 	return error;
 }
 
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index d5bbce38282f..3565e9795301 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -40,6 +40,9 @@
  */
 void device_bind_driver(struct device * dev)
 {
+	if (klist_node_attached(&dev->knode_driver))
+		return;
+
 	pr_debug("bound device '%s' to driver '%s'\n",
 		 dev->bus_id, dev->driver->name);
 	klist_add_tail(&dev->knode_driver, &dev->driver->klist_devices);
diff --git a/drivers/base/dmapool.c b/drivers/base/dmapool.c
index 60a7ef6a201b..e2f64f91ed05 100644
--- a/drivers/base/dmapool.c
+++ b/drivers/base/dmapool.c
@@ -156,7 +156,7 @@ dma_pool_create (const char *name, struct device *dev,
 
 
 static struct dma_page *
-pool_alloc_page (struct dma_pool *pool, unsigned int __nocast mem_flags)
+pool_alloc_page (struct dma_pool *pool, gfp_t mem_flags)
 {
 	struct dma_page	*page;
 	int		mapsize;
@@ -262,8 +262,7 @@ dma_pool_destroy (struct dma_pool *pool)
  * If such a memory block can't be allocated, null is returned.
  */
 void *
-dma_pool_alloc (struct dma_pool *pool, unsigned int __nocast mem_flags,
-		dma_addr_t *handle)
+dma_pool_alloc (struct dma_pool *pool, gfp_t mem_flags, dma_addr_t *handle)
 {
 	unsigned long		flags;
 	struct dma_page		*page;