Merge branch 'for-5.18/amd-sfh' into for-linus

- dead code elimination (Christophe JAILLET)

1 files changed, 23 insertions, 11 deletions

diff --git a/drivers/base/core.c b/drivers/base/core.c
index 63e769057487..7bb957b11861 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -2260,9 +2260,9 @@ static struct kobj_type device_ktype = {
 };
 
 
-static int dev_uevent_filter(struct kset *kset, struct kobject *kobj)
+static int dev_uevent_filter(struct kobject *kobj)
 {
-	struct kobj_type *ktype = get_ktype(kobj);
+	const struct kobj_type *ktype = get_ktype(kobj);
 
 	if (ktype == &device_ktype) {
 		struct device *dev = kobj_to_dev(kobj);
@@ -2274,7 +2274,7 @@ static int dev_uevent_filter(struct kset *kset, struct kobject *kobj)
 	return 0;
 }
 
-static const char *dev_uevent_name(struct kset *kset, struct kobject *kobj)
+static const char *dev_uevent_name(struct kobject *kobj)
 {
 	struct device *dev = kobj_to_dev(kobj);
 
@@ -2285,8 +2285,7 @@ static const char *dev_uevent_name(struct kset *kset, struct kobject *kobj)
 	return NULL;
 }
 
-static int dev_uevent(struct kset *kset, struct kobject *kobj,
-		      struct kobj_uevent_env *env)
+static int dev_uevent(struct kobject *kobj, struct kobj_uevent_env *env)
 {
 	struct device *dev = kobj_to_dev(kobj);
 	int retval = 0;
@@ -2381,7 +2380,7 @@ static ssize_t uevent_show(struct device *dev, struct device_attribute *attr,
 
 	/* respect filter */
 	if (kset->uevent_ops && kset->uevent_ops->filter)
-		if (!kset->uevent_ops->filter(kset, &dev->kobj))
+		if (!kset->uevent_ops->filter(&dev->kobj))
 			goto out;
 
 	env = kzalloc(sizeof(struct kobj_uevent_env), GFP_KERNEL);
@@ -2389,7 +2388,7 @@ static ssize_t uevent_show(struct device *dev, struct device_attribute *attr,
 		return -ENOMEM;
 
 	/* let the kset specific function add its keys */
-	retval = kset->uevent_ops->uevent(kset, &dev->kobj, env);
+	retval = kset->uevent_ops->uevent(&dev->kobj, env);
 	if (retval)
 		goto out;
 
@@ -2873,10 +2872,6 @@ void device_initialize(struct device *dev)
 	INIT_LIST_HEAD(&dev->devres_head);
 	device_pm_init(dev);
 	set_dev_node(dev, NUMA_NO_NODE);
-#ifdef CONFIG_GENERIC_MSI_IRQ
-	raw_spin_lock_init(&dev->msi_lock);
-	INIT_LIST_HEAD(&dev->msi_list);
-#endif
 	INIT_LIST_HEAD(&dev->links.consumers);
 	INIT_LIST_HEAD(&dev->links.suppliers);
 	INIT_LIST_HEAD(&dev->links.defer_sync);
@@ -3028,6 +3023,23 @@ static inline struct kobject *get_glue_dir(struct device *dev)
 	return dev->kobj.parent;
 }
 
+/**
+ * kobject_has_children - Returns whether a kobject has children.
+ * @kobj: the object to test
+ *
+ * This will return whether a kobject has other kobjects as children.
+ *
+ * It does NOT account for the presence of attribute files, only sub
+ * directories. It also assumes there is no concurrent addition or
+ * removal of such children, and thus relies on external locking.
+ */
+static inline bool kobject_has_children(struct kobject *kobj)
+{
+	WARN_ON_ONCE(kref_read(&kobj->kref) == 0);
+
+	return kobj->sd && kobj->sd->dir.subdirs;
+}
+
 /*
  * make sure cleaning up dir as the last step, we need to make
  * sure .release handler of kobject is run with holding the