[PATCH] powerpc: Add/remove/update properties in /proc/device-tree
Add support to the proc_device_tree file for removing
and updating properties. Remove just removes the
proc file, update changes the data pointer within
the proc file. The remainder of the device-tree
changes occur elsewhere.
Signed-off-by: Dave Boutcher <sleddog@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/fs/proc/proc_devtree.c b/fs/proc/proc_devtree.c
index fb117b7..9bdd077 100644
--- a/fs/proc/proc_devtree.c
+++ b/fs/proc/proc_devtree.c
@@ -81,6 +81,30 @@
__proc_device_tree_add_prop(pde, prop);
}
+void proc_device_tree_remove_prop(struct proc_dir_entry *pde,
+ struct property *prop)
+{
+ remove_proc_entry(prop->name, pde);
+}
+
+void proc_device_tree_update_prop(struct proc_dir_entry *pde,
+ struct property *newprop,
+ struct property *oldprop)
+{
+ struct proc_dir_entry *ent;
+
+ for (ent = pde->subdir; ent != NULL; ent = ent->next)
+ if (ent->data == oldprop)
+ break;
+ if (ent == NULL) {
+ printk(KERN_WARNING "device-tree: property \"%s\" "
+ " does not exist\n", oldprop->name);
+ } else {
+ ent->data = newprop;
+ ent->size = newprop->length;
+ }
+}
+
/*
* Process a node, adding entries for its children and its properties.
*/
diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
index 74488e4..aa6322d 100644
--- a/include/linux/proc_fs.h
+++ b/include/linux/proc_fs.h
@@ -146,6 +146,11 @@
extern void proc_device_tree_init(void);
extern void proc_device_tree_add_node(struct device_node *, struct proc_dir_entry *);
extern void proc_device_tree_add_prop(struct proc_dir_entry *pde, struct property *prop);
+extern void proc_device_tree_remove_prop(struct proc_dir_entry *pde,
+ struct property *prop);
+extern void proc_device_tree_update_prop(struct proc_dir_entry *pde,
+ struct property *newprop,
+ struct property *oldprop);
#endif /* CONFIG_PROC_DEVICETREE */
extern struct proc_dir_entry *proc_symlink(const char *,