1 files changed, 7 insertions, 115 deletions

diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c
index 39f71fba9b38..d6491bd481d0 100644
--- a/arch/powerpc/platforms/pseries/reconfig.c
+++ b/arch/powerpc/platforms/pseries/reconfig.c
@@ -16,55 +16,13 @@
 #include <linux/notifier.h>
 #include <linux/proc_fs.h>
 #include <linux/slab.h>
+#include <linux/of.h>
 
 #include <asm/prom.h>
 #include <asm/machdep.h>
 #include <asm/uaccess.h>
-#include <asm/pSeries_reconfig.h>
 #include <asm/mmu.h>
 
-
-
-/*
- * Routines for "runtime" addition and removal of device tree nodes.
- */
-#ifdef CONFIG_PROC_DEVICETREE
-/*
- * Add a node to /proc/device-tree.
- */
-static void add_node_proc_entries(struct device_node *np)
-{
-        struct proc_dir_entry *ent;
-
-        ent = proc_mkdir(strrchr(np->full_name, '/') + 1, np->parent->pde);
-        if (ent)
-                proc_device_tree_add_node(np, ent);
-}
-
-static void remove_node_proc_entries(struct device_node *np)
-{
-        struct property *pp = np->properties;
-        struct device_node *parent = np->parent;
-
-        while (pp) {
-                remove_proc_entry(pp->name, np->pde);
-                pp = pp->next;
-        }
-        if (np->pde)
-                remove_proc_entry(np->pde->name, parent->pde);
-}
-#else /* !CONFIG_PROC_DEVICETREE */
-static void add_node_proc_entries(struct device_node *np)
-{
-        return;
-}
-
-static void remove_node_proc_entries(struct device_node *np)
-{
-        return;
-}
-#endif /* CONFIG_PROC_DEVICETREE */
-
 /**
  *      derive_parent - basically like dirname(1)
  *      @path:  the full_name of a node to be added to the tree
@@ -97,28 +55,6 @@ static struct device_node *derive_parent(const char *path)
         return parent;
 }
 
-static BLOCKING_NOTIFIER_HEAD(pSeries_reconfig_chain);
-
-int pSeries_reconfig_notifier_register(struct notifier_block *nb)
-{
-        return blocking_notifier_chain_register(&pSeries_reconfig_chain, nb);
-}
-EXPORT_SYMBOL_GPL(pSeries_reconfig_notifier_register);
-
-void pSeries_reconfig_notifier_unregister(struct notifier_block *nb)
-{
-        blocking_notifier_chain_unregister(&pSeries_reconfig_chain, nb);
-}
-EXPORT_SYMBOL_GPL(pSeries_reconfig_notifier_unregister);
-
-int pSeries_reconfig_notify(unsigned long action, void *p)
-{
-        int err = blocking_notifier_call_chain(&pSeries_reconfig_chain,
-                                                action, p);
-
-        return notifier_to_errno(err);
-}
-
 static int pSeries_reconfig_add_node(const char *path, struct property *proplist)
 {
         struct device_node *np;
@@ -142,16 +78,12 @@ static int pSeries_reconfig_add_node(const char *path, struct property *proplist
                 goto out_err;
         }
 
-        err = pSeries_reconfig_notify(PSERIES_RECONFIG_ADD, np);
+        err = of_attach_node(np);
         if (err) {
                 printk(KERN_ERR "Failed to add device node %s\n", path);
                 goto out_err;
         }
 
-        of_attach_node(np);
-
-        add_node_proc_entries(np);
-
         of_node_put(np->parent);
 
         return 0;
@@ -179,11 +111,7 @@ static int pSeries_reconfig_remove_node(struct device_node *np)
                 return -EBUSY;
         }
 
-        remove_node_proc_entries(np);
-
-        pSeries_reconfig_notify(PSERIES_RECONFIG_REMOVE, np);
         of_detach_node(np);
-
         of_node_put(parent);
         of_node_put(np); /* Must decrement the refcount */
         return 0;
@@ -281,12 +209,11 @@ static struct property *new_property(const char *name, const int length,
         if (!new)
                 return NULL;
 
-        if (!(new->name = kmalloc(strlen(name) + 1, GFP_KERNEL)))
+        if (!(new->name = kstrdup(name, GFP_KERNEL)))
                 goto cleanup;
         if (!(new->value = kmalloc(length + 1, GFP_KERNEL)))
                 goto cleanup;
 
-        strcpy(new->name, name);
         memcpy(new->value, value, length);
         *(((char *)new->value) + length) = 0;
         new->length = length;
@@ -398,7 +325,7 @@ static int do_add_property(char *buf, size_t bufsize)
         if (!prop)
                 return -ENOMEM;
 
-        prom_add_property(np, prop);
+        of_add_property(np, prop);
 
         return 0;
 }
@@ -422,16 +349,15 @@ static int do_remove_property(char *buf, size_t bufsize)
 
         prop = of_find_property(np, buf, NULL);
 
-        return prom_remove_property(np, prop);
+        return of_remove_property(np, prop);
 }
 
 static int do_update_property(char *buf, size_t bufsize)
 {
         struct device_node *np;
-        struct pSeries_reconfig_prop_update upd_value;
         unsigned char *value;
         char *name, *end, *next_prop;
-        int rc, length;
+        int length;
         struct property *newprop;
         buf = parse_node(buf, bufsize, &np);
         end = buf + bufsize;
@@ -453,41 +379,7 @@ static int do_update_property(char *buf, size_t bufsize)
         if (!strcmp(name, "slb-size") || !strcmp(name, "ibm,slb-size"))
                 slb_set_size(*(int *)value);
 
-        upd_value.node = np;
-        upd_value.property = newprop;
-        pSeries_reconfig_notify(PSERIES_UPDATE_PROPERTY, &upd_value);
-
-        rc = prom_update_property(np, newprop);
-        if (rc)
-                return rc;
-
-        /* For memory under the ibm,dynamic-reconfiguration-memory node
-         * of the device tree, adding and removing memory is just an update
-         * to the ibm,dynamic-memory property instead of adding/removing a
-         * memory node in the device tree.  For these cases we still need to
-         * involve the notifier chain.
-         */
-        if (!strcmp(name, "ibm,dynamic-memory")) {
-                int action;
-
-                next_prop = parse_next_property(next_prop, end, &name,
-                                                &length, &value);
-                if (!next_prop)
-                        return -EINVAL;
-
-                if (!strcmp(name, "add"))
-                        action = PSERIES_DRCONF_MEM_ADD;
-                else
-                        action = PSERIES_DRCONF_MEM_REMOVE;
-
-                rc = pSeries_reconfig_notify(action, value);
-                if (rc) {
-                        prom_update_property(np, newprop);
-                        return rc;
-                }
-        }
-
-        return 0;
+        return of_update_property(np, newprop);
 }
 
 /**